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Babu N, Zhang P, Xian G. Improving epoxy adhesion with steel adherends using a tannic acid‐based additive: Impact on resin properties and interfacial bonding. J Appl Polym Sci 2023. [DOI: 10.1002/app.53803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Affiliation(s)
- Noel Babu
- Key Lab of Structures Dynamic Behavior and Control, Ministry of Education Harbin Institute of Technology Harbin China
- Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters of the Ministry of Industry and Information Technology Harbin Institute of Technology Harbin China
- School of Civil Engineering Harbin Institute of Technology Harbin China
| | - Puxuan Zhang
- Key Lab of Structures Dynamic Behavior and Control, Ministry of Education Harbin Institute of Technology Harbin China
- Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters of the Ministry of Industry and Information Technology Harbin Institute of Technology Harbin China
- School of Civil Engineering Harbin Institute of Technology Harbin China
| | - Guijun Xian
- Key Lab of Structures Dynamic Behavior and Control, Ministry of Education Harbin Institute of Technology Harbin China
- Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters of the Ministry of Industry and Information Technology Harbin Institute of Technology Harbin China
- School of Civil Engineering Harbin Institute of Technology Harbin China
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Murcia DH, Al Shanti S, Hamidi F, Rimsza J, Yoon H, Gunawan B, Abdellatef M, Taha MR. Development and Characterization of a Sustainable Bio-Polymer Concrete with a Low Carbon Footprint. Polymers (Basel) 2023; 15:polym15030628. [PMID: 36771929 PMCID: PMC9921866 DOI: 10.3390/polym15030628] [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: 12/18/2022] [Revised: 01/14/2023] [Accepted: 01/20/2023] [Indexed: 01/27/2023] Open
Abstract
Polymer concrete (PC) has been used to replace cement concrete when harsh service conditions exist. Polymers have a high carbon footprint when considering their life cycle analysis, and with increased climate change concerns and the need to reduce greenhouse gas emission, bio-based polymers could be used as a sustainable alternative binder to produce PC. This paper examines the development and characterization of a novel bio-polymer concrete (BPC) using bio-based polyurethane used as the binder in lieu of cement, modified with benzoic acid and carboxyl-functionalized multi-walled carbon nanotubes (MWCNTs). The mechanical performance, durability, microstructure, and chemical properties of BPC are investigated. Moreover, the effect of the addition of benzoic acid and MWCNTs on the properties of BPC is studied. The new BPC shows relatively low density, appreciable compressive strength between 20-30 MPa, good tensile strength of 4 MPa, and excellent durability resistance against aggressive environments. The new BPC has a low carbon footprint, 50% lower than ordinary Portland cement concrete, and can provide a sustainable concrete alternative in infrastructural applications.
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Affiliation(s)
- Daniel Heras Murcia
- Department of Civil, Construction & Environmental Engineering, University of New Mexico, Albuquerque, NM 87131, USA
| | - Siham Al Shanti
- Department of Civil, Construction & Environmental Engineering, University of New Mexico, Albuquerque, NM 87131, USA
| | - Fatemeh Hamidi
- Department of Civil, Construction & Environmental Engineering, University of New Mexico, Albuquerque, NM 87131, USA
| | - Jessica Rimsza
- Sandia National Laboratories, MS 0748, 1515 Eubank Blvd. SE, Albuquerque, NM 87123, USA
| | - Hongkyu Yoon
- Sandia National Laboratories, MS 0748, 1515 Eubank Blvd. SE, Albuquerque, NM 87123, USA
| | - Budi Gunawan
- Sandia National Laboratories, MS 0748, 1515 Eubank Blvd. SE, Albuquerque, NM 87123, USA
| | - Mohammed Abdellatef
- Sandia National Laboratories, MS 0748, 1515 Eubank Blvd. SE, Albuquerque, NM 87123, USA
| | - Mahmoud Reda Taha
- Department of Civil, Construction & Environmental Engineering, University of New Mexico, Albuquerque, NM 87131, USA
- Correspondence: ; Tel.: +1-(505)-277-1258; Fax: +1-(505)-277-1988
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Wang P, Ke L, Wu H, Leung CKY. Synergic effect of temperature and alkalinity on the long‐term durability of pure vinyl ester. POLYM ENG SCI 2022. [DOI: 10.1002/pen.26066] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Peng Wang
- Department of Civil and Environmental Engineering Hong Kong University of Science and Technology Hong Kong China
| | - Lin‐yu‐wen Ke
- Department of Civil and Environmental Engineering Hong Kong University of Science and Technology Hong Kong China
- School of Civil Engineering Sun Yat‐sen University Guangzhou China
| | - Haoliang Wu
- Department of Civil and Environmental Engineering Hong Kong University of Science and Technology Hong Kong China
- School of Civil Engineering Sun Yat‐sen University Guangzhou China
| | - Christopher K. Y. Leung
- Department of Civil and Environmental Engineering Hong Kong University of Science and Technology Hong Kong China
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Zhou P, Tian J, Li C, Tang Z. Comparative Study of Durability Behaviors of Thermoplastic Polypropylene and Thermosetting Epoxy Exposed to Elevated Temperature, Water Immersion and Sustained Bending Loading. Polymers (Basel) 2022; 14:polym14142953. [PMID: 35890728 PMCID: PMC9325122 DOI: 10.3390/polym14142953] [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: 06/27/2022] [Revised: 07/12/2022] [Accepted: 07/19/2022] [Indexed: 02/01/2023] Open
Abstract
The long-term degradation of epoxy as the matrix and adhesive serviced in harsh environments plays a key role in engineering applications. Understanding how to improve the toughness and durability of epoxy through reasonable material replacement and design is significant to prolong the service life of engineering structures. In the present paper, thermoplastic polypropylene and thermosetting epoxy were exposed in a coupling environment of elevated temperature, water immersion and sustained bending loading. The evolutions of mechanical and thermal properties were further analyzed and compared. Long-term life prediction was conducted to evaluate the corrosive resistances of polypropylene and epoxy. It can be found that polypropylene has better hydrophobic behavior compared to epoxy. At 80 °C, the ratios of the diffusion coefficient and saturated water uptake between the two matrices were 114.4 and 2.94. At the longest immersion time of 90 days, the degradation percentages of tensile strength were 4.7% (40 °C), 7.5% (60 °C) and 8.8% (80 °C), respectively, which had the higher strength retention (>90%). The maximum strength increase in the multiples of polypropylene/epoxy and polypropylene/polyurethane was 1.95 and 1.75, respectively. The bending loading led to a maximum increase in tensile strength (~1.47%) owing to the oxygen isolation effect. The degradation mechanism was attributed to the active functional groups from the production process reacting with oxygen, resulting in the fracture of the local chain segment. By comparison, water molecules reacted with the hydroxyl groups or interrupted the intermolecular Van der Waals force/hydrogen bond of the epoxy, resulting in irreversible hydrolysis and property degradation. Through the comparison, it can be found that polypropylene and its composites have outstanding properties compared to epoxy, which can make them achieve great application prospects in engineering applications when considering a complex service environment.
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Affiliation(s)
- Ping Zhou
- Key Laboratory of Structures Dynamic Behavior and Control, Ministry of Education, Harbin Institute of Technology, Harbin 150090, China; (P.Z.); (J.T.); (Z.T.)
- Key Laboratory of Smart Prevention and Mitigation of Civil Engineering Disasters, Ministry of Industry and Information Technology, Harbin Institute of Technology, Harbin 150090, China
- School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China
| | - Jingwei Tian
- Key Laboratory of Structures Dynamic Behavior and Control, Ministry of Education, Harbin Institute of Technology, Harbin 150090, China; (P.Z.); (J.T.); (Z.T.)
- Key Laboratory of Smart Prevention and Mitigation of Civil Engineering Disasters, Ministry of Industry and Information Technology, Harbin Institute of Technology, Harbin 150090, China
- School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China
| | - Chenggao Li
- Key Laboratory of Structures Dynamic Behavior and Control, Ministry of Education, Harbin Institute of Technology, Harbin 150090, China; (P.Z.); (J.T.); (Z.T.)
- Key Laboratory of Smart Prevention and Mitigation of Civil Engineering Disasters, Ministry of Industry and Information Technology, Harbin Institute of Technology, Harbin 150090, China
- School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China
- Correspondence: ; Tel./Fax: +86-451-8628-3120
| | - Zhecheng Tang
- Key Laboratory of Structures Dynamic Behavior and Control, Ministry of Education, Harbin Institute of Technology, Harbin 150090, China; (P.Z.); (J.T.); (Z.T.)
- Key Laboratory of Smart Prevention and Mitigation of Civil Engineering Disasters, Ministry of Industry and Information Technology, Harbin Institute of Technology, Harbin 150090, China
- School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China
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Diaz TJ, Cerrutti P, Chiacchiarelli LM. In‐situ thermal aging of biobased and conventional rigid polyurethane foams nanostructured with bacterial nanocellulose. J Appl Polym Sci 2022. [DOI: 10.1002/app.51824] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Tomás Joaquin Diaz
- CONICET‐UBA Instituto de Tecnología de Polímeros y Nanotecnología (ITPN) Buenos Aires Argentina
| | - Patricia Cerrutti
- Departamento de Ingeniería Química, Facultad de Ingeniería Universidad de Buenos Aires Buenos Aires Argentina
| | - Leonel Matías Chiacchiarelli
- CONICET‐UBA Instituto de Tecnología de Polímeros y Nanotecnología (ITPN) Buenos Aires Argentina
- Departamento de Ingeniería Mecánica Instituto Tecnológico de Buenos Aires Buenos Aires Argentina
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Yang R, Liu W, Wang A, Deng X, Feng Y, Zhang Q, Li Z, Luo F, Li J, Tan H. Shape memory polyurethane potentially used for vascular stents with water-induced stiffening and improved hemocompatibility. J Mater Chem B 2022; 10:8918-8930. [DOI: 10.1039/d2tb01681h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
We designed a shape memory polyurethane potentially used for vascular stents with water-induced stiffening in vivo and improved hemocompatibility.
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Affiliation(s)
- Ruibo Yang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X Center for Materials, Sichuan University, Chengdu 610065, China
| | - Wenkai Liu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X Center for Materials, Sichuan University, Chengdu 610065, China
| | - Ao Wang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X Center for Materials, Sichuan University, Chengdu 610065, China
| | - Xiaobo Deng
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X Center for Materials, Sichuan University, Chengdu 610065, China
| | - Yuan Feng
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X Center for Materials, Sichuan University, Chengdu 610065, China
| | - Qiao Zhang
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu 610065, China
| | - Zhen Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X Center for Materials, Sichuan University, Chengdu 610065, China
| | - Feng Luo
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X Center for Materials, Sichuan University, Chengdu 610065, China
| | - Jiehua Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X Center for Materials, Sichuan University, Chengdu 610065, China
| | - Hong Tan
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X Center for Materials, Sichuan University, Chengdu 610065, China
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New innovations in pavement materials and engineering: A review on pavement engineering research 2021. JOURNAL OF TRAFFIC AND TRANSPORTATION ENGINEERING (ENGLISH EDITION) 2021. [DOI: 10.1016/j.jtte.2021.10.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Investigation of hygrothermal aging on the polyurethane-based (PUB) adhesive: substantiating competition scenario between sub-aging thermo-oxidation and hydrolytic phenomena. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02718-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Effect of Immersion in Water or Alkali Solution on the Structures and Properties of Epoxy Resin. Polymers (Basel) 2021; 13:polym13121902. [PMID: 34201026 PMCID: PMC8228582 DOI: 10.3390/polym13121902] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 05/26/2021] [Accepted: 06/01/2021] [Indexed: 11/26/2022] Open
Abstract
The durability of fiber-reinforced polymer (FRP) composites is significantly dependent on the structures and properties of the resin matrix. In the present paper, the effects of physical or chemical interactions between the molecular chain of the epoxy resin matrix and water molecules or alkaline groups on the water absorption, mechanical structures, and microstructures of epoxy resin samples were studied experimentally. The results showed that the water uptake curves of the epoxy resin immersed in water and an alkali solution over time presented a three-stage variation. At different immersion stages, the water uptake behavior of the resin showed unique characteristics owing to the coupling effects of the solution concentration gradient diffusion, molecular hydrolysis reaction, and molecular segment movement. In comparison with the water immersion, the alkali solution environment promoted the hydrolysis reaction of the epoxy resin molecular chain. After the immersion in water or the alkali solution for one month, the water uptake of the resin was close to saturate, and the viscoelasticity was observed to decrease significantly. The micropore and free volume space on the surface and in the interior of the resin gradually increased, while the original large-scale free volume space decreased. The tensile strength decreased to the lowest point after the immersion in water and the alkali solution for one month, and the decrease percentages at 20 °C and 60 °C water or 60 °C alkali solution were 24%, 28%, and 22%, respectively. Afterward, the tensile strength recovered with the further extension of immersion time. In addition, it can be found that the effect of the alkali solution and water on the tensile strength of the epoxy resin was basically the same.
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Effects of Adhesive Coating on the Hygrothermal Aging Performance of Pultruded CFRP Plates. Polymers (Basel) 2020; 12:polym12020491. [PMID: 32102258 PMCID: PMC7077647 DOI: 10.3390/polym12020491] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 02/21/2020] [Accepted: 02/21/2020] [Indexed: 11/16/2022] Open
Abstract
Bonding of carbon fiber reinforced polymer (CFRP) plates to a concrete member is a widely used strengthening method. CFRP plates used in construction degrade due to harsh environmental conditions such as high temperature or alkaline solution seepage from concrete. However, the adhesive between CFRP plates and concrete may have a positive effect on the durability performance of CFRP plates. In this paper, the long-term performance of both naked and adhesive coated CFRP pultruded plates subjected to different-temperature water or alkaline solution (20, 40 and 60 °C) are investigated to evaluate the protective effect of adhesive on CFRP plates. It is found that the adhesive coating can slow the deterioration of mechanical properties especially the tensile properties and fiber-matrix interfacial properties. The water absorption mechanism of CFRP plates was also investigated.
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Yin X, Liu Y, Miao Y, Xian G. Water Absorption, Hydrothermal Expansion, and Thermomechanical Properties of a Vinylester Resin for Fiber-Reinforced Polymer Composites Subjected to Water or Alkaline Solution Immersion. Polymers (Basel) 2019; 11:polym11030505. [PMID: 30960489 PMCID: PMC6473648 DOI: 10.3390/polym11030505] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 03/11/2019] [Accepted: 03/14/2019] [Indexed: 12/02/2022] Open
Abstract
In the present paper, a vinyl ester (VE) resin, potentially used as a resin matrix for fiber-reinforced polymer (FRP) composite sucker rods in oil drilling, FRP bridge cables, or FRP marine structures, was investigated on its resistance to water and alkaline solution immersion in terms of water uptake, hydrothermal expansion, and mechanical properties. A two-stage diffusion model was applied to simulate the water uptake processes. Alkaline solution immersion led to a slightly higher mass loss (approx. 0.4%) compared to water immersion (approx. 0.23%) due to the hydrolysis and leaching of uncured small molecules (e.g., styrene). Water immersion caused the expansion of VE plates monitored with Fiber Bragg Grating (FBG). With the same water uptake, the expansion increased with immersion temperatures, which is attributed to the increased relaxation extent of the resin molecular networks. Although an obvious decrease of the glass transition temperatures (Tg) of VE due to water immersion (5.4 to 6.1 °C/1% water uptake), Tg can be recovered almost completely after drying. Tensile test results indicate that a short-term immersion (less than 6 months) enhances both the strength and elongation at break, while the extension of the immersion time degrades both the strength and elongation. The modulus of VE shows insensitive to the immersion even at elevated temperatures.
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Affiliation(s)
- Xiaoli Yin
- School of Mechanical and Electronic Engineering, China University of Petroleum, Qingdao 266580, China.
- Shengli College, China University of Petroleum, Dongying 257061, China.
| | - Yancong Liu
- School of Mechanical and Electronic Engineering, China University of Petroleum, Qingdao 266580, China.
- Shengli College, China University of Petroleum, Dongying 257061, China.
| | - Yufei Miao
- School of Civil Engineering, Harbin Institute of Technology, Huanghe Road No. 73, Nangang District, Harbin 150090, China.
| | - Guijun Xian
- School of Civil Engineering, Harbin Institute of Technology, Huanghe Road No. 73, Nangang District, Harbin 150090, China.
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