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Iz M, Lee J, Choi M, Yun Y, Bae J. The Effect of Polyamide 11 on the Thermal Stability and Light Transmittance of Silicone-Based Thermoplastic Vulcanizates. Polymers (Basel) 2024; 16:324. [PMID: 38337213 DOI: 10.3390/polym16030324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 12/28/2023] [Accepted: 01/22/2024] [Indexed: 02/12/2024] Open
Abstract
The effect of polyamide 11 (PA11) on the thermal stability and light transmittance properties of silicone-based thermoplastic vulcanizates (TPVs) has been investigated. The blends were prepared through a dynamic vulcanization process by adding 15, 30, and 45 wt% PA11 to the silicon-based TPVs, respectively. The effect of PA11 on the dispersion of silicone rubber in the TPVs after dynamic vulcanization was characterized by a scanning electron microscope (SEM), the thermal stability of the compounds was evaluated through the changes in mechanical performance in the thermo-oxidative aging process, and the light transmittance of TPVs was measured by a haze meter. The results showed that adding PA11 to silicone-based TPVs caused a decrease in the size of the silicone rubber particles after dynamic vulcanization, resulting in improved dispersion. Due to this, by increasing the compatibility between the segments through silicone's effective dispersion, the amount of light absorption was reduced, and the amount of light transmittance was increased. Finally, according to the results of the thermal aging test, it was found that TPVs with 30 and 45 wt% PA11, respectively, showed outstanding thermal resistance after aging at 160 °C and 168 h and did not melt down.
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Affiliation(s)
- Muhammet Iz
- Korea Institute of Footwear & Leather Technology, Busan 47154, Republic of Korea
| | - Jinhyok Lee
- Korea Institute of Footwear & Leather Technology, Busan 47154, Republic of Korea
| | - Myungchan Choi
- Korea Institute of Footwear & Leather Technology, Busan 47154, Republic of Korea
| | - Yumi Yun
- Korea Institute of Footwear & Leather Technology, Busan 47154, Republic of Korea
| | - Jongwoo Bae
- Korea Institute of Footwear & Leather Technology, Busan 47154, Republic of Korea
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2
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Bell M, Ye K, Yap TF, Rajappan A, Liu Z, Tao YJ, Preston DJ. Rapid In Situ Thermal Decontamination of Wearable Composite Textile Materials. ACS APPLIED MATERIALS & INTERFACES 2023; 15:44521-44532. [PMID: 37695080 PMCID: PMC10521748 DOI: 10.1021/acsami.3c09063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 08/21/2023] [Indexed: 09/12/2023]
Abstract
Pandemics stress supply lines and generate shortages of personal protective equipment (PPE), in part because most PPE is single-use and disposable, resulting in a need for constant replenishment to cope with high-volume usage. To better prepare for the next pandemic and to reduce waste associated with disposable PPE, we present a composite textile material capable of thermally decontaminating its surface via Joule heating. This material can achieve high surface temperatures (>100 °C) and inactivate viruses quickly (<5 s of heating), as evidenced experimentally with the surrogate virus HCoV-OC43 and in agreement with analytical modeling for both HCoV-OC43 and SARS-CoV-2. Furthermore, it does not require doffing because it remains relatively cool near the skin (<40 °C). The material can be easily integrated into clothing and provides a rapid, reusable, in situ decontamination method capable of reducing PPE waste and mitigating the risk of supply line disruptions in times of need.
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Affiliation(s)
- Marquise
D. Bell
- Department
of Mechanical Engineering, George R. Brown School of Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Kai Ye
- Department
of Biosciences, Wiess School of Natural Sciences, Rice University, 6100
Main Street, Houston, Texas 77005, United States
| | - Te Faye Yap
- Department
of Mechanical Engineering, George R. Brown School of Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Anoop Rajappan
- Department
of Mechanical Engineering, George R. Brown School of Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Zhen Liu
- Department
of Mechanical Engineering, George R. Brown School of Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Yizhi Jane Tao
- Department
of Biosciences, Wiess School of Natural Sciences, Rice University, 6100
Main Street, Houston, Texas 77005, United States
| | - Daniel J. Preston
- Department
of Mechanical Engineering, George R. Brown School of Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, United States
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Abdullah N, Abdan K, Lee CH, Mohd Roslim MH, Radzuan MN, shafi AR. Thermal properties of wood flour reinforced polyamide 6 biocomposites by twin screw extrusion. PHYSICAL SCIENCES REVIEWS 2022. [DOI: 10.1515/psr-2022-0082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The use of waste wood flour as polymer reinforcements has recently gained popularity because of its environmental benefits. The goal of this research is to determine the thermal properties of a waste wood flour/polyamide 6 composite made via extrusion. The fillers were melt compounded with polyamide 6 at filler concentrations of 5%, 10%, and 15% using a twin screw extruder, followed by compression molding. The processability of waste wood flour/polyamide 6 composite was evaluated using thermogravimetric analysis (TGA), differential scanning calorimeter (DSC), and dynamic thermomechanical analysis (DMA). According to the TGA analysis, the thermal stability of the composites decreases as the natural fiber content increases. The onset temperature of rapid thermal deterioration was reduced somewhat from 425 °C (neat PA6) to 405 °C (15 wt% wood flour). According to the DSC results, the addition of natural fibers resulted in quantify changes in the glass transition (T
g), melting (T
m), and crystallization temperature (T
c) of the PA6 composites. The storage modulus from the DMA study increased from 1177 MPa (neat PA6) to 1531 MPa due to the reinforcing effects of wood flour (15 wt%). Waste wood flour/polyamide 6 composites offer advantageous thermal properties, enabling us to profit from the strengthening potential of such cellulosic reinforcements while remaining recyclable and generally renewable.
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Affiliation(s)
- Norihan Abdullah
- Laboratory of Biocomposite , Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia , 43400 Serdang , Selangor , Malaysia
| | - Khalina Abdan
- Laboratory of Biocomposite , Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia , 43400 Serdang , Selangor , Malaysia
| | - Ching Hao Lee
- Laboratory of Biocomposite , Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia , 43400 Serdang , Selangor , Malaysia
| | - Muhammad Huzaifah Mohd Roslim
- Department of Crop Science, Faculty of Agricultural Science and Forestry , Universiti Putra Malaysia Bintulu Campus , 97008 Bintulu , Sarawak , Malaysia
| | - Mohd Nazren Radzuan
- Department of Biological and Agricultural Engineering, Faculty of Engineering , Universiti Putra Malaysia , 43400 Serdang , Selangor , Malaysia
| | - Ayu Rafiqah shafi
- Laboratory of Biocomposite , Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia , 43400 Serdang , Selangor , Malaysia
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Kondo MY, Montagna LS, Morgado GFDM, Castilho ALGD, Batista LAPDS, Botelho EC, Costa ML, Passador FR, Rezende MC, Ribeiro MV. Recent advances in the use of Polyamide-based materials for the automotive industry. POLIMEROS 2022. [DOI: 10.1590/0104-1428.20220042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | | | | | | | | | | | - Michelle Leali Costa
- Universidade Estadual Paulista, Brasil; Instituto de Pesquisas Tecnológicas, Brasil
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Abstract
The objective of this article is to provide an overview on the current development of micro- and nanoporous fiber processing and manufacturing technologies. Various methods for making micro- and nanoporous fibers including co-electrospinning, melt spinning, dry jet-wet quenching spinning, vapor deposition, template assisted deposition, electrochemical oxidization, and hydrothermal oxidization are presented. Comparison is made in terms of advantages and disadvantages of different routes for porous fiber processing. Characterization of the pore size, porosity, and specific area is introduced as well. Applications of porous fibers in various fields are discussed. The emphasis is put on their uses for energy storage components and devices including rechargeable batteries and supercapacitors.
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Wang J, Yang B, Lin X, Gao L, Liu T, Lu Y, Wang R. Research of TPU Materials for 3D Printing Aiming at Non-Pneumatic Tires by FDM Method. Polymers (Basel) 2020; 12:E2492. [PMID: 33120954 PMCID: PMC7694035 DOI: 10.3390/polym12112492] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/14/2020] [Accepted: 10/23/2020] [Indexed: 12/07/2022] Open
Abstract
3D printing technology has been widely used in various fields, such as biomedicine, clothing design, and aerospace, due to its personalized customization, rapid prototyping of complex structures, and low cost. However, the application of 3D printing technology in the field of non-pneumatic tires has not been systematically studied. In this study, we evaluated the application of potential thermoplastic polyurethanes (TPU) materials based on FDM technology in the field of non-pneumatic tires. First, the printing process of TPU material based on fused deposition modeling (FDM) technology was studied through tensile testing and SEM observation. The results show that the optimal 3D printing temperature of the selected TPU material is 210 °C. FDM technology was successfully applied to 3D printed non-pneumatic tires based on TPU material. The study showed that the three-dimensional stiffness of 3D printed non-pneumatic tires is basically 50% of that obtained by simulation. To guarantee the prediction of the performance of 3D printed non-pneumatic tires, we suggest that the performance of these materials should be moderately reduced during the structural design for performance simulation.
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Affiliation(s)
- Jun Wang
- Key Laboratory of Beijing City for Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China; (J.W.); (B.Y.); (Y.L.)
| | - Bin Yang
- Key Laboratory of Beijing City for Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China; (J.W.); (B.Y.); (Y.L.)
| | - Xiang Lin
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China;
| | - Lei Gao
- State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022, China; (L.G.); (T.L.)
| | - Tao Liu
- State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022, China; (L.G.); (T.L.)
| | - Yonglai Lu
- Key Laboratory of Beijing City for Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China; (J.W.); (B.Y.); (Y.L.)
| | - Runguo Wang
- Key Laboratory of Beijing City for Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China; (J.W.); (B.Y.); (Y.L.)
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Kunchimon SZ, Tausif M, Goswami P, Cheung V. From hybrid fibers to microfibers: The characteristics of polyamide 6/polypropylene blend via one‐step twin‐screw melt extrusion. POLYM ENG SCI 2020. [DOI: 10.1002/pen.25327] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Siti Zaharah Kunchimon
- Department of Mechanical Engineering, Faculty of Engineering TechnologyUniversiti Tun Hussein Onn Malaysia 84600 Pagoh, Muar Johor Malaysia
- School of DesignUniversity of Leeds Leeds LS2 9JT UK
| | | | - Parikshit Goswami
- Technical Textiles Research Centre, School of Applied ScienceUniversity of Huddersfield Huddersfield HD1 3DH UK
| | - Vien Cheung
- School of DesignUniversity of Leeds Leeds LS2 9JT UK
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Zou X, Liu B, Wen J, Zeng W, Jing B, Dai W. Improvement of polyamide/thermoplastic polyurethane blends with polyamide 6‐polyurethane copolymer prepared via suspension polymerization as compatibilizer. J Appl Polym Sci 2020. [DOI: 10.1002/app.49155] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xiaoxuan Zou
- College of ChemistryXiangtan University Xiangtan People's Republic of China
- Key Laboratory of Polymeric Materials & Application Technology of Hunan ProvinceXiangtan University Xiangtan People's Republic of China
| | - Bin Liu
- College of ChemistryXiangtan University Xiangtan People's Republic of China
- Key Laboratory of Polymeric Materials & Application Technology of Hunan ProvinceXiangtan University Xiangtan People's Republic of China
| | - Jiaoxian Wen
- College of ChemistryXiangtan University Xiangtan People's Republic of China
- Key Laboratory of Polymeric Materials & Application Technology of Hunan ProvinceXiangtan University Xiangtan People's Republic of China
| | - Wen Zeng
- College of ChemistryXiangtan University Xiangtan People's Republic of China
| | - Bo Jing
- College of ChemistryXiangtan University Xiangtan People's Republic of China
- Key Laboratory of Polymeric Materials & Application Technology of Hunan ProvinceXiangtan University Xiangtan People's Republic of China
| | - Wenli Dai
- College of ChemistryXiangtan University Xiangtan People's Republic of China
- Key Laboratory of Polymeric Materials & Application Technology of Hunan ProvinceXiangtan University Xiangtan People's Republic of China
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Shafeeq VH, Unnikrishnan G. Experimental and theoretical evaluation of mechanical, thermal and morphological features of EVA-millable polyurethane blends. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-2027-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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10
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Modified polypropylene/ thermoplastic polyurethane blends with maleic-anhydride grafted polypropylene: blending morphology and mechanical behaviors. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-019-1974-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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