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Li Z, Yang C, Yan K, Xia M, Yan Z, Wang D, Wang W. Rational design of a polypropylene composite foam with open-cell structure via graphite conductive network for sound absorption. SOFT MATTER 2024; 20:1089-1099. [PMID: 38221881 DOI: 10.1039/d3sm01432k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
An exciting result is reported in this study where a polypropylene (PP) foam with a high open-cell content was achieved by constructing a thermally conductive network for the first time. PP and nano-graphite particles were used as substrate and filler, respectively, to prepare the PP-graphite (PP-G) composite foam by twin-screw blending, hot pressing, and supercritical CO2 foaming. The nano-graphite particles can effectively adjust the microstructure of the PP-G foam and achieve a high porosity. When the amount of nano-graphite is 10.0 wt%, the PP-G foam exhibits optimal sound absorption performance, compression resistance, heat insulation, and hydrophobic properties. In the human-sensitive frequency range of 1000-6000 Hz, the corresponding average SAC is above 0.9, and the internal tortuosity is 5.27. After 50 cycles of compression, the compressive stress is 980 kPa and the SAC loss is only 7.8%. This study also innovatively proposed a new strategy to achieve the simple and rapid preparation of open-cell PP foams by increasing the thermal conductivity of the foaming substrate.
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Affiliation(s)
- Zhiyao Li
- Key Laboratory of Textile Fiber and Products (Wuhan Textile University), Ministry of Education, Wuhan Textile University, Wuhan 430200, China.
| | - Chenguang Yang
- Key Laboratory of Textile Fiber and Products (Wuhan Textile University), Ministry of Education, Wuhan Textile University, Wuhan 430200, China.
- Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, Wuhan Institute of Technology, Wuhan 430205, China
| | - Kun Yan
- Key Laboratory of Textile Fiber and Products (Wuhan Textile University), Ministry of Education, Wuhan Textile University, Wuhan 430200, China.
| | - Ming Xia
- Key Laboratory of Textile Fiber and Products (Wuhan Textile University), Ministry of Education, Wuhan Textile University, Wuhan 430200, China.
| | - Zhong Yan
- Key Laboratory of Textile Fiber and Products (Wuhan Textile University), Ministry of Education, Wuhan Textile University, Wuhan 430200, China.
| | - Dong Wang
- Key Laboratory of Textile Fiber and Products (Wuhan Textile University), Ministry of Education, Wuhan Textile University, Wuhan 430200, China.
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Wenwen Wang
- Key Laboratory of Textile Fiber and Products (Wuhan Textile University), Ministry of Education, Wuhan Textile University, Wuhan 430200, China.
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2
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Li C, Hu J, Yan H, Yao Y, Zhang L, Bao J. Preparation of Open-Cell Long-Chain Branched Polypropylene Foams for Oil Absorption. ACS OMEGA 2023; 8:49372-49382. [PMID: 38162746 PMCID: PMC10753697 DOI: 10.1021/acsomega.3c07915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/30/2023] [Accepted: 12/04/2023] [Indexed: 01/03/2024]
Abstract
This study aimed to prepare open-cell foams using a blend of long-chain branched polypropylene and polyolefin elastomer (LCBPP/POE) for the production of reusable oil absorbents. The supercritical CO2 foaming process was conducted using a two-step batch rapid depressurization method. This unique two-step foaming approach significantly expanded the temperature and pressure windows, resulting in more uniform cells with smaller sizes, ultimately leading to higher expansion ratios and an increased open cell content. The foaming process was optimized by adjusting parameters, such as the LCBPP/POE ratio, foaming temperature, and foaming pressure, reaching a maximum open cell content of 97.6% and a maximum expansion ratio of 48. The influence of polypropylene (PP) crystallization was investigated with the aid of scanning electron microscopy and differential scanning calorimetry. Furthermore, the hydrophobic and lipophilic characteristics of the LCBPP/POE open-cell foam were determined via contact angle measurements and oil/water separation tests. Oil absorption tests revealed that the blended LCBPP/POE foam has a higher oil absorption capacity than that of the pure LCBPP foam. The cyclic oil absorption tests demonstrated the outstanding ductility and recoverability of the LCBPP/POE open-cell foam in comparison to those of the pure LCBPP foam. Over 10 cycles, the LCBPP/POE foam maintained a substantial adsorption capacity, retaining 99.3% of its initial oil absorption capacity. With its notable features, including a high open cell content, excellent hydrophobic and lipophilic characteristics, superior oil absorption capacity, impressive cyclic oil absorption performance, and robust reusability, LCBPP/POE open-cell foams exhibit significant promise as potential oil adsorbents for use in oil spill cleanup applications.
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Affiliation(s)
- Chenhui Li
- School
of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
- Key
Laboratory of Impact and Safety Engineering, Ministry of Education, Ningbo University, Ningbo 315211, China
| | - Jirun Hu
- Goettfert
(China) Limited, Shanghai 200083, China
| | - Haikuo Yan
- National
Engineering Lab of Textile Fiber Materials & Processing Technology
(Zhejiang), Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Yuyuan Yao
- National
Engineering Lab of Textile Fiber Materials & Processing Technology
(Zhejiang), Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Li Zhang
- School
of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
- Key
Laboratory of Impact and Safety Engineering, Ministry of Education, Ningbo University, Ningbo 315211, China
| | - Jinbiao Bao
- Ningbo
Micro-Foam Technology Co., Ltd., High-Tech Zone, Ningbo 315048, China
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3
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Liu F, Shen C, You F, Zhao W, Deng C, Jiang X. Enhancing the Sound and Thermal Insulation Properties of Polypropylene Foam by Preparing High Melt Strength Polypropylene. Macromol Rapid Commun 2023; 44:e2300344. [PMID: 37552045 DOI: 10.1002/marc.202300344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/25/2023] [Indexed: 08/09/2023]
Abstract
High-performance polypropylene (PP) foam is a vital polymer product in industrial areas. However, the poor melt strength of ordinary PP homopolymer limits its foaming molding. In this work, high melt strength polypropylene (HMSPP) is prepared by using styrene (St) and tripropylene glycol diacrylate (TPGDA) as comonomers, and then PP foams are prepared by mold foaming method. The results show that adding St in the grafting process of TPGDA will obviously improve the melt strength of the PP matrix, and its melt strength (28 184 Pa.s) is 7.4 times higher than that of pure PP. HMSPP foam has more regular and uniform cells and higher cell density, which significantly improves the sound and thermal insulation properties of PP foam. Compared with pure PP foam, the average sound transmission loss (52.9 dB) of HMSPP foam with a low foaming ratio increased by 64%, and the thermal conductivity (0.0867 W mK-1 ) decreased by 46%. Therefore, the obtained HMSPP foam can be used in sound insulation or thermal insulation area. This work provides an available route for the high-performance utilization of PP foam.
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Affiliation(s)
- Fangjun Liu
- Key Laboratory for Green Chemical Process of Ministry of Education, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan, 430073, P. R. China
| | - Chenxi Shen
- Key Laboratory for Green Chemical Process of Ministry of Education, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan, 430073, P. R. China
| | - Feng You
- Key Laboratory for Green Chemical Process of Ministry of Education, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan, 430073, P. R. China
| | - Wufan Zhao
- Key Laboratory for Green Chemical Process of Ministry of Education, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan, 430073, P. R. China
| | - Caoting Deng
- Key Laboratory for Green Chemical Process of Ministry of Education, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan, 430073, P. R. China
| | - Xueliang Jiang
- Key Laboratory for Green Chemical Process of Ministry of Education, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan, 430073, P. R. China
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4
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Wang H, Yan R, Cheng H, Zou M, Wang H, Zheng K. Hollow glass microspheres/phenolic syntactic foams with excellent mechanical and thermal insulate performance. Front Chem 2023; 11:1216706. [PMID: 37324555 PMCID: PMC10267378 DOI: 10.3389/fchem.2023.1216706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 05/15/2023] [Indexed: 06/17/2023] Open
Abstract
Syntactic foams with low density as well as low thermal conduction and proper mechanical performance are vitally important for aerospace, marine, and automotive industries. Here, phenolic-based syntactic foams were fabricated by combining the hollow glass microsphere (GMs) with phenolic resin of in situ synthesis. Benefited from the stirring and hot-pressing treatment, microspheres dispersed homogeneously in the resin matrix and it greatly reduced the density of the composites. Stretching and compression tests were performed to investigate the mechanical behavior of the foams. It is found that both the compressive and tensile strength decreased as the filler loadings increasing. While the elasticity modulus was improved. On the other hand, thermal properties tests revealed superior thermal stability and thermal insulate performance of the composites. The final residue content of the synthetic foam with 40 wt% filler was improved by ∼31.5% than that of the neat one at 700°C. And samples with 20 wt% microspheres reached a minimum thermal conductivity value of approximately 0.129 W (m·K)-1 which is ∼46.7% lower than that of neat resin [0.298 W (m·K)-1]. This work provides a feasible strategy to construct syntactic foams with low density and ideal thermal properties.
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Affiliation(s)
- Hui Wang
- Department of Chemistry and Chemical Engineering, Hefei Normal University, Hefei, China
- Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China
| | - Rui Yan
- Department of Chemistry and Chemical Engineering, Hefei Normal University, Hefei, China
| | - Hua Cheng
- Department of Chemistry and Chemical Engineering, Hefei Normal University, Hefei, China
- Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China
| | - Mingmin Zou
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Anhui University, Hefei, Anhui, China
| | - Hua Wang
- Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China
| | - Kang Zheng
- Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China
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5
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Dai H, Dai W, Hu Z, Zhang W, Zhang G, Guo R. Advanced Composites Inspired by Biological Structures and Functions in Nature: Architecture Design, Strengthening Mechanisms, and Mechanical-Functional Responses. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2207192. [PMID: 36935371 PMCID: PMC10190572 DOI: 10.1002/advs.202207192] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 02/16/2023] [Indexed: 05/18/2023]
Abstract
The natural design and coupling of biological structures are the root of realizing the high strength, toughness, and unique functional properties of biomaterials. Advanced architecture design is applied to many materials, including metal materials, inorganic nonmetallic materials, polymer materials, and so on. To improve the performance of advanced materials, the designed architecture can be enhanced by bionics of biological structure, optimization of structural parameters, and coupling of multiple types of structures. Herein, the progress of structural materials is reviewed, the strengthening mechanisms of different types of structures are highlighted, and the impact of architecture design on the performance of advanced materials is discussed. Architecture design can improve the properties of materials at the micro level, such as mechanical, electrical, and thermal conductivity. The synergistic effect of structure makes traditional materials move toward advanced functional materials, thus enriching the macroproperties of materials. Finally, the challenges and opportunities of structural innovation of advanced materials in improving material properties are discussed.
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Affiliation(s)
- Hanqing Dai
- Academy for Engineering and TechnologyInstitute for Electric Light SourcesFudan UniversityShanghai200433China
| | - Wenqing Dai
- School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai200240China
| | - Zhe Hu
- School of Information Science and TechnologyFudan UniversityShanghai200433China
| | - Wanlu Zhang
- School of Information Science and TechnologyFudan UniversityShanghai200433China
| | - Guoqi Zhang
- Department of MicroelectronicsDelft University of TechnologyDelftCD 2628Netherlands
| | - Ruiqian Guo
- Academy for Engineering and TechnologyInstitute for Electric Light SourcesFudan UniversityShanghai200433China
- School of Information Science and TechnologyFudan UniversityShanghai200433China
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6
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Refined Spherulites of PP Induced by Supercritical N 2 and Graphite Nanosheet and Foaming Performance. Polymers (Basel) 2023; 15:polym15051204. [PMID: 36904446 PMCID: PMC10007225 DOI: 10.3390/polym15051204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 02/22/2023] [Accepted: 02/24/2023] [Indexed: 03/08/2023] Open
Abstract
The isothermal crystallization properties of polypropylene/graphite nanosheet (PP/GN) nanocomposites under supercritical N2 were systematically studied by a self-made in situ high-pressure microscope system. The results showed that the GN caused irregular lamellar crystals to form within the spherulites due to its effect on heterogeneous nucleation. It was found that the grain growth rate exhibits a decreasing and then increasing trend with the enhancement of N2 pressure. Using the secondary nucleation model, the secondary nucleation rate for spherulites of PP/GN nanocomposites was investigated from an energy perspective. The increase in free energy introduced by the desorbed N2 is the essential reason for the increase in the secondary nucleation rate. The results from the secondary nucleation model were consistent with those acquired through isothermal crystallization experiments, suggesting that the model can accurately predict the grain growth rate of PP/GN nanocomposites under supercritical N2 conditions. Furthermore, these nanocomposites demonstrated good foam behavior under supercritical N2.
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7
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Golmohammadi M, Salehabadi M, Janani H. Role of polymorphism in solid-state production of double-melting expanded polypropylene beads. POLYMER 2023. [DOI: 10.1016/j.polymer.2023.125757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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8
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Kowalczyk Ł, Korol J, Chmielnicki B, Laska A, Chuchala D, Hejna A. One More Step towards a Circular Economy for Thermal Insulation Materials-Development of Composites Highly Filled with Waste Polyurethane (PU) Foam for Potential Use in the Building Industry. MATERIALS (BASEL, SWITZERLAND) 2023; 16:782. [PMID: 36676519 PMCID: PMC9864609 DOI: 10.3390/ma16020782] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/04/2023] [Accepted: 01/11/2023] [Indexed: 06/17/2023]
Abstract
The rapid development of the building sector has created increased demand for novel materials and technologies, while on the other hand resulting in the generation of a severe amount of waste materials. Among these are polyurethane (PU) foams, which are commonly applied as thermal insulation materials. Their management is a serious industrial problem, due to, for example, their complex chemical composition. Although some chemical and thermochemical methods of PU foam recycling are known, their broader use is limited due to requirements related to the complexity and safety of their installation, thus implicating high costs. Therefore, material recycling poses a promising alternative. The incorporation of waste PU foams as fillers for polymer composites could make it possible to take advantage of their structure and performance. Herein, polypropylene-based composites that were highly filled with waste PU foam and modified using foaming agents were prepared and analyzed. Depending on the foam loading and the foaming agent applied, the apparent density of material was reduced by as much as 68%. The efficient development of a porous structure, confirmed by scanning electron microscopy and high-resolution computed micro-tomography, enabled a 64% decrease in the thermal conductivity coefficient. The foaming of the structure affected the mechanical performance of composites, resulting in a deterioration of their tensile and compressive performance. Therefore, developing samples of the analyzed composites with the desired performance would require identifying the proper balance between mechanical strength and economic, as well as ecological (share of waste material in composite, apparent density of material), considerations.
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Affiliation(s)
- Łukasz Kowalczyk
- Central Mining Institute, Department of Material Engineering, Pl. Gwarkow 1, 40-166 Katowice, Poland
| | - Jerzy Korol
- Central Mining Institute, Department of Material Engineering, Pl. Gwarkow 1, 40-166 Katowice, Poland
| | - Błażej Chmielnicki
- Łukasiewicz Research Network–Institute of Engineering of Polymer Materials and Dyes, Center for Paints and Plastics, ul. Chorzowska 50A, 44-100 Gliwice, Poland
| | - Aleksandra Laska
- Faculty of Mechanical Engineering and Ship Technology and EkoTech Center, Gdańsk University of Technology, 80-233 Gdańsk, Poland
| | - Daniel Chuchala
- Faculty of Mechanical Engineering and Ship Technology and EkoTech Center, Gdańsk University of Technology, 80-233 Gdańsk, Poland
| | - Aleksander Hejna
- Institute of Materials Technology, Poznan University of Technology, Piotrowo 3, 60-965 Poznań, Poland
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9
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Rostami-Tapeh-Esmaeil E, Shojaei S, Rodrigue D. Mechanical and Thermal Properties of Functionally Graded Polyolefin Elastomer Foams. Polymers (Basel) 2022; 14:4124. [PMID: 36236072 PMCID: PMC9572381 DOI: 10.3390/polym14194124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 09/26/2022] [Accepted: 09/28/2022] [Indexed: 11/06/2022] Open
Abstract
In this work, uniform and graded polyolefin elastomer (POE) foams were prepared using a single-step technology based on a fixed chemical blowing agent (azodicarbonamide) concentration of 4 phr (parts per hundred rubber). The effect of molding temperature, including the average temperature (Tavg) and temperature difference (ΔT), on the foams' morphology, mechanical properties (tension, compression and hardness) and thermal conductivity was investigated. Two series of samples were produced by fixing Tavg with different ΔT or setting different ΔT, leading to different Tavg. The morphological analyses showed that two or three regions inside the foams were produced depending on the molding conditions, each region having different cellular structure in terms of cell size, cell density and cell geometry. The results obtained for the conditions tested showed a range of density (0.55-0.72 g/cm3), tensile modulus (0.44-0.70 MPa) and compression elastic modulus (0.35-0.71 MPa), with a thermal conductivity between 0.125 and 0.180 W/m.K. Based on the information provided, it can be concluded that the foam's properties can be easily controlled by the cellular structure and that graded samples are more interesting than uniform ones, especially for thermal insulation applications, such as packaging, construction, transportation, automotive and aerospace industries.
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Affiliation(s)
| | | | - Denis Rodrigue
- Department of Chemical Engineering, Université Laval, Quebec, QC G1V 0A6, Canada
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10
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Tsou CH, Zeng R, Tsou CY, Chen JC, Sun YL, Ma ZL, De Guzman MR, Tu LJ, Tian XY, Wu CS. Mechanical, Hydrophobic, and Barrier Properties of Nanocomposites of Modified Polypropylene Reinforced with Low-Content Attapulgite. Polymers (Basel) 2022; 14:polym14173696. [PMID: 36080772 PMCID: PMC9459951 DOI: 10.3390/polym14173696] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/27/2022] [Accepted: 08/29/2022] [Indexed: 02/06/2023] Open
Abstract
Attapulgite (ATT) has never been used as a barrier additive in polypropylene (PP). As a filler, ATT should be added in high content to PP. However, that would result in increased costs. Moreover, the compatibility between ATT and the PP matrix is poor due to the lack of functional groups in PP. In this study, carboxylic groups were introduced to PP to form a modified polypropylene (MPP). ATT was purified, and a low content of it was added to MPP to prepare MPP/ATT nanocomposites. The analysis from FTIR indicated that ATT could react with MPP. According to the results of oxygen and water permeability tests, the barrier performance of the nanocomposite was optimal when the ATT content was 0.4%. This great improvement in barrier performance might be ascribed to the following three reasons: (1) The existence of ATT extended the penetration path of O2 or H2O molecules; (2) O2 or H2O molecules may be adsorbed and stored in the porous structure of ATT; (3) Most importantly, –COOH of MPP reacted with –OH on the surface of ATT, thereby the inner structure of the nanocomposite was denser, and it was less permeable to molecules. Therefore, nanocomposites prepared by adding ATT to MPP have excellent properties and low cost. They can be used as food packaging materials and for other related applications.
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Affiliation(s)
- Chi-Hui Tsou
- School of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong 643000, China
- Material Corrosion and Protection Key Laboratory of Sichuan Province, Sichuan University of Science and Engineering, Zigong 643000, China
- Sichuan Zhixiangyi Technology Co., Ltd., Chengdu 610051, China
- Correspondence: (C.-H.T.); (C.-S.W.)
| | - Rui Zeng
- School of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong 643000, China
- Material Corrosion and Protection Key Laboratory of Sichuan Province, Sichuan University of Science and Engineering, Zigong 643000, China
| | - Chih-Yuan Tsou
- Sichuan Zhixiangyi Technology Co., Ltd., Chengdu 610051, China
- Sichuan Zhirenfa Biotechnology Co., Ltd., Zigong 643000, China
| | - Jui-Chin Chen
- Department of Material and Textile, Asia Eastern University of Science and Technology, New Taipei City 220, Taiwan
| | - Ya-Li Sun
- School of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong 643000, China
| | - Zheng-Lu Ma
- Sichuan Vocational College of Chemical Technology, Luzhou 646300, China
| | - Manuel Reyes De Guzman
- School of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong 643000, China
- Material Corrosion and Protection Key Laboratory of Sichuan Province, Sichuan University of Science and Engineering, Zigong 643000, China
| | - Lian-Jie Tu
- School of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong 643000, China
- Material Corrosion and Protection Key Laboratory of Sichuan Province, Sichuan University of Science and Engineering, Zigong 643000, China
| | - Xin-Yuan Tian
- Department of Material and Textile, Asia Eastern University of Science and Technology, New Taipei City 220, Taiwan
| | - Chin-San Wu
- Department of Applied Cosmetology, Kao Yuan University, Kaohsiung 82101, Taiwan
- Correspondence: (C.-H.T.); (C.-S.W.)
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11
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Tian Y, Gong C, Zhou H, Jiang Z, Wang X, Tang L, Cao K. Halogen‐free intumescent flame retardancy and mechanical properties of the microcellular polypropylene with low expansion ratio via continuous extrusion assisted by subcritical
CO
2
. J Appl Polym Sci 2022. [DOI: 10.1002/app.51971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yichen Tian
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering Zhejiang University Hangzhou China
| | - Changjing Gong
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering Zhejiang University Hangzhou China
| | - Hongfu Zhou
- School of Materials and Mechanical Engineering Beijing Technology and Business University Beijing China
| | - Ziyin Jiang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering Zhejiang University Hangzhou China
| | - Xiangdong Wang
- School of Materials and Mechanical Engineering Beijing Technology and Business University Beijing China
| | - Longcheng Tang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education Hangzhou Normal University Hangzhou China
| | - Kun Cao
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering Zhejiang University Hangzhou China
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12
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Guo Q, Shi D, Yang C, Wu G. Preparation of polymer-based foam for efficient oil-water separation based on surface engineering. SOFT MATTER 2022; 18:3041-3051. [PMID: 35357391 DOI: 10.1039/d2sm00230b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The leakages of a large number of organic solvents and oil spills not only cause extensive economic losses, but also destroy the ecological environment. However, there were few studies on the surface engineering of adsorption materials for efficient oil-water separation in complex environments. In this research, through surface engineering, the polymer-based foam exhibited high efficiency oil-water separation performance in different pH environments. Hydrophobic groups were introduced onto the surface of nano-sized SiO2 particles via hydrolysis and polycondensation reactions, and then the modified SiO2 was loaded on the foam. After modification, the water contact angle of the modified foam increased from 116.4° to 152.5°, and the oil-water separation performance was obviously enhanced. The oil removal rate of the modified foam remained above 96%. The highest capacity of petroleum diesel was 33.4 g-1, which was much higher than other similar adsorption materials. In addition, the modified foam maintained good hydrophobicity and oil removal rate in a wide pH range. The efficient oleophilic and hydrophobic foam prepared by combining green physical foaming with surface engineering was expected to be widely used in large-scale organic solvent recovery and oil leakage emergency treatment.
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Affiliation(s)
- Qingshi Guo
- School of Materials Science and Engineer, Hubei University, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, China.
| | - Dean Shi
- School of Materials Science and Engineer, Hubei University, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, China.
| | - Chenguang Yang
- School of Materials Science and Engineer, Hubei University, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, China.
- Key Laboratory of Textile Fiber and Products, Ministry of Education, Wuhan Textile University, Wuhan, 430200, China
- Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, Wuhan Institute of Technology, Wuhan 430205, China
| | - Guozhong Wu
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China.
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13
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Yousfi M, Samuel C, Soulestin J, Lacrampe MF. Rheological Considerations in Processing Self-Reinforced Thermoplastic Polymer Nanocomposites: A Review. Polymers (Basel) 2022; 14:637. [PMID: 35160626 PMCID: PMC8839963 DOI: 10.3390/polym14030637] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 02/04/2022] [Accepted: 02/04/2022] [Indexed: 01/08/2023] Open
Abstract
The present review relates to the field of nanocomposite materials comprising a thermoplastic nanofibrillar phase dispersed in a matrix that is also thermoplastic. The fact of forming the nanofibrillar phase in situ during melt processing gives it the role of a reinforcing nanofiller for thermoplastic materials. This paper discusses the major factors influencing the formation of self-reinforced nanofibrillar polymer composite (NFC) materials throughout manufacturing steps. More specifically, the rheological considerations allowing the prediction of the in situ nanofibrillation during melt blending and post-processing as well as the methods of production of these polymer nanocomposites are described. The major challenges related to the future development in the field of NFCs are addressed. The concept of self-reinforced nanofibrillar polymer materials shows great potential in lightweight eco-design processes and represents a new approach to polymer nanocomposite recycling for a variety of industrial applications.
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Affiliation(s)
- Mohamed Yousfi
- Univ Lyon, CNRS, UMR 5223, Ingénierie des Matériaux Polymères, Université Claude Bernard Lyon1, INSA Lyon, Université Jean Monnet, F-69621 Villeurbanne, France
| | - Cédric Samuel
- IMT Nord Europe, Institut Mines-Télécom, Univ. Lille, Centre for Materials and Processes, F-59000 Lille, France; (C.S.); (J.S.); (M.-F.L.)
| | - Jérémie Soulestin
- IMT Nord Europe, Institut Mines-Télécom, Univ. Lille, Centre for Materials and Processes, F-59000 Lille, France; (C.S.); (J.S.); (M.-F.L.)
| | - Marie-France Lacrampe
- IMT Nord Europe, Institut Mines-Télécom, Univ. Lille, Centre for Materials and Processes, F-59000 Lille, France; (C.S.); (J.S.); (M.-F.L.)
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Yang C, Yan K, Wen X, Cai P, Wu G. Radiation Grafting Assisted Preparation of Layered Structure Polypropylene Foam with Superthermal Insulation and Hydrophobic Properties via a Supercritical CO 2 Batch Foaming Process. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.0c05667] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chenguang Yang
- Hubei Key Laboratory of Advanced Textile Materials & Application, Hubei International Scientific Technological Cooperation Base of Intelligent Textile Materials & Application, Wuhan Textile University, Wuhan 430200, China
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Kun Yan
- Hubei Key Laboratory of Advanced Textile Materials & Application, Hubei International Scientific Technological Cooperation Base of Intelligent Textile Materials & Application, Wuhan Textile University, Wuhan 430200, China
| | - Xin Wen
- Hubei Key Laboratory of Advanced Textile Materials & Application, Hubei International Scientific Technological Cooperation Base of Intelligent Textile Materials & Application, Wuhan Textile University, Wuhan 430200, China
| | - Peijun Cai
- Hubei Key Laboratory of Advanced Textile Materials & Application, Hubei International Scientific Technological Cooperation Base of Intelligent Textile Materials & Application, Wuhan Textile University, Wuhan 430200, China
| | - Guozhong Wu
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
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