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Polymers 2018, 10(5), 486;

Processing and Thermal Response of Temperature-Sensitive-Gel(TSG)/Polymer Composites

Department of Polymer Science & Engineering, Graduate School of Organic Materials Science, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
Department of Mechanical Systems Engineering, Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
Kohjin Film & Chemicals Co., Ltd., 1-1 Koukokumachi, Yatsushiro, Kumamoto 866-8686, Japan
Authors to whom correspondence should be addressed.
Received: 4 April 2018 / Revised: 26 April 2018 / Accepted: 28 April 2018 / Published: 1 May 2018
(This article belongs to the Special Issue Processing-Structure-Properties Relationships in Polymers)
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Temperature-sensitive gels (TSGs) are generally used in the fields of medical, robotics, MEMS, and also in daily life. In this paper, we synthesized a novel TSG with good thermal durability and a lower melting temperature below 60 °C. We discussed the physical properties of he TSG and found it provided excellent thermal expansion. Therefore, we proposed the usage of TSG to develop a strategic breathable film with controllable gas permeability. The TSG particles were prepared firstly and then blended with linear low-density polyethylene/calcium carbonate (LLDPE/CaCO3) composite to develop microporous TSG/LLDPE/CaCO3 films. We investigated the morphology, thermal, and mechanical properties of TSG/LLDPE/CaCO3 composite films. The film characterization was conducted by gas permeability testing and demonstration temperature control experiments. The uniformly porous structure and the pore size in the range of 5–40 μm for the TSG/LLDPE/CaCO3 composite films were indicated by SEM micrographs. The demonstration temperature control experiments clearly proved the effect of the controllable gas permeability of the TSG and, more promisingly, the great practical value and application prospects of this strategic effect for the temperature-sensitive breathable film was proved. View Full-Text
Keywords: temperature sensitive; gel; controllable gas permeability; breathable film; polymer composite; processing temperature sensitive; gel; controllable gas permeability; breathable film; polymer composite; processing

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Gong, J.; Hosaka, E.; Sakai, K.; Ito, H.; Shibata, Y.; Sato, K.; Nakanishi, D.; Ishihara, S.; Hamada, K. Processing and Thermal Response of Temperature-Sensitive-Gel(TSG)/Polymer Composites. Polymers 2018, 10, 486.

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