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Mao Y, Kubota Y, Feng R, Gong J, Ishigami A, Kobayashi Y, Watabe T, Aoki D, Otsuka H, Ito H. Structure Reconfigurable Mechanochromic Polymer with Shape Memory and Strain-Monitored Function Enabled by a Covalent Adaptable Network. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yuchen Mao
- Research Center for GREEN Materials & Advanced Processing, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Yuto Kubota
- Department of Organic Materials Science, Graduate School of Organic Materials Science, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Ruiqi Feng
- Department of Polymeric and Organic Materials Engineering, Faculty of Engineering, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Jin Gong
- Department of Organic Materials Science, Graduate School of Organic Materials Science, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Akira Ishigami
- Research Center for GREEN Materials & Advanced Processing, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
- Department of Organic Materials Science, Graduate School of Organic Materials Science, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Yutaka Kobayashi
- Research Center for GREEN Materials & Advanced Processing, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Takuma Watabe
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8550, Japan
| | - Daisuke Aoki
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8550, Japan
| | - Hideyuki Otsuka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8550, Japan
| | - Hiroshi Ito
- Research Center for GREEN Materials & Advanced Processing, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
- Department of Organic Materials Science, Graduate School of Organic Materials Science, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
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Mao Y, Kubota Y, Gong J, Kurose T, Ishigami A, Seshimo K, Watabe T, Aoki D, Otsuka H, Ito H. Mechanical Performance and Visual Fracture Warning Function of Mechanochromic Stimuli-Recovery Polymer Networks. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00904] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Yuchen Mao
- Research Center for GREEN Materials & Advanced Processing, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Yuto Kubota
- Department of Organic Materials Science, Graduate School of Organic Materials Science, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Jin Gong
- Department of Organic Materials Science, Graduate School of Organic Materials Science, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Takashi Kurose
- Research Center for GREEN Materials & Advanced Processing, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Akira Ishigami
- Research Center for GREEN Materials & Advanced Processing, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
- Department of Organic Materials Science, Graduate School of Organic Materials Science, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Kota Seshimo
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8550, Japan
| | - Takuma Watabe
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8550, Japan
| | - Daisuke Aoki
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8550, Japan
| | - Hideyuki Otsuka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8550, Japan
| | - Hiroshi Ito
- Research Center for GREEN Materials & Advanced Processing, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
- Department of Organic Materials Science, Graduate School of Organic Materials Science, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
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Li X, Chen L, Han W, Ge C, Guan H, Zhang R, Zhang X. Preparation and Thermal Properties of Shape‐stabilized Paraffin/
NPGDMA
/
BN
Composite for Phase Change Energy Storage. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000191] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Xuefeng Li
- College of Chemistry, Liaoning University Shenyang, Liaoling 110036, China School of Materials Science and Engineering, Liaocheng University Liaocheng Shandong 252000 China
| | - Lingying Chen
- College of Chemistry, Liaoning University Shenyang, Liaoling 110036, China School of Materials Science and Engineering, Liaocheng University Liaocheng Shandong 252000 China
| | - Weifang Han
- College of Chemistry, Liaoning University Shenyang, Liaoling 110036, China School of Materials Science and Engineering, Liaocheng University Liaocheng Shandong 252000 China
| | - Chunhua Ge
- College of Chemistry, Liaoning University Shenyang, Liaoling 110036, China School of Materials Science and Engineering, Liaocheng University Liaocheng Shandong 252000 China
| | - Hongyu Guan
- College of Chemistry, Liaoning University Shenyang, Liaoling 110036, China School of Materials Science and Engineering, Liaocheng University Liaocheng Shandong 252000 China
| | - Rui Zhang
- College of Chemistry, Liaoning University Shenyang, Liaoling 110036, China School of Materials Science and Engineering, Liaocheng University Liaocheng Shandong 252000 China
| | - Xiangdong Zhang
- College of Chemistry, Liaoning University Shenyang, Liaoling 110036, China School of Materials Science and Engineering, Liaocheng University Liaocheng Shandong 252000 China
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Wu G, Gu Y, Hou X, Li R, Ke H, Xiao X. Hybrid Nanocomposites of Cellulose/Carbon-Nanotubes/Polyurethane with Rapidly Water Sensitive Shape Memory Effect and Strain Sensing Performance. Polymers (Basel) 2019; 11:E1586. [PMID: 31569828 PMCID: PMC6835329 DOI: 10.3390/polym11101586] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 09/13/2019] [Accepted: 09/24/2019] [Indexed: 12/18/2022] Open
Abstract
In this work, a fast water-responsive shape memory hybrid polymer based on thermoplastic polyurethane (TPU) was prepared by crosslinking with hydroxyethyl cotton cellulose nanofibers (CNF-C) and multi-walled carbon nanotubes (CNTs). The effect of CNTs content on the electrical conductivity of TPU/CNF-C/CNTs nanocomposite was investigated for the feasibility of being a strain sensor. In order to know its durability, the mechanical and water-responsive shape memory effects were studied comprehensively. The results indicated good mechanical properties and sensing performance for the TPU matrix fully crosslinked with CNF-C and CNTs. The water-induced shape fixity ratio (Rf) and shape recovery ratio (Rr) were 49.65% and 76.64%, respectively, indicating that the deformed composite was able to recover its original shape under a stimulus. The TPU/CNF-C/CNTs samples under their fixed and recovered shapes were tested to investigate their sensing properties, such as periodicity, frequency, and repeatability of the sensor spline under different loadings. Results indicated that the hybrid composite can sense large strains accurately for more than 103 times and water-induced shape recovery can to some extent maintain the sensing accuracy after material fatigue. With such good properties, we envisage that this kind of composite may play a significant role in developing new generations of water-responsive sensors or actuators.
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Affiliation(s)
- Guanzheng Wu
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi 214122, China.
| | - Yanjia Gu
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi 214122, China.
- Shenzhen Digital Life Institute, Shenzhen 581000, China.
| | - Xiuliang Hou
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi 214122, China.
| | - Ruiqing Li
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi 214122, China.
| | - Huizhen Ke
- Fujian Key Laboratory of Novel Functional Textile Fibers and Materials, Minjiang University, Fuzhou 350108, China.
| | - Xueliang Xiao
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi 214122, China.
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Crystal Transition Behavior and Thermal Properties of Thermal-Energy-Storage Copolymer Materials with an n-Behenyl Side-Chain. Polymers (Basel) 2019; 11:polym11091512. [PMID: 31533212 PMCID: PMC6781100 DOI: 10.3390/polym11091512] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/26/2019] [Accepted: 09/14/2019] [Indexed: 11/16/2022] Open
Abstract
In this paper, we synthesized MC(BeA-co-MMA) copolymer microcapsules through suspension polymerization. The pendent n-behenyl group of BeA is highly crystalline, and it acts as the side-chain in the structure of BeA-co-MMA copolymer. The highly crystalline n-behenyl side-chain provides BeA-co-MMA copolymer thermal-energy-storage capacity. In order to investigate the correlation between the thermal properties and crystal structure of the BeA-co-MMA copolymer, the effects of monomer ratio, temperature changing and the changing rate, as well as synthesis method were discussed. The monomer ratio influenced crystal transition behavior and thermal properties greatly. The DSC results proved that when the monomer ratio of BeA and MMA was 3:1, MC(BeA-co-MMA)3 showed the highest average phase change enthalpy ΔH (105.1 J·g-1). It indicated that the n-behenyl side-chain formed a relatively perfect crystal region, which ensured a high energy storage capacity of the copolymer. All the DSC and SAXS results proved that the amount of BeA had a strong effect on the thermal-energy-storage capacity of the copolymer and the long spacing of crystals, but barely on the crystal lamella. It was found that MMA units worked like defects in the n-behenyl side-chain crystal structure of the BeA-co-MMA copolymer. Therefore, a lower fraction of MMA, that is, a higher fraction of BeA, contributed to a higher crystallinity of the BeA-co-MMA copolymer, providing a better energy storage capacity and thermoregulation property. ST(BeA-co-MMA) copolymer sheets with the same ingredients as microcapsules were also prepared through light-induced polymerization aiming at clarifying the effect of the synthesis method. The results proved that the synthesis method mainly influenced the copolymer chemical component, but lightly on the crystal packing of the n-behenyl side-chain.
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Singh R, Kumar R, Farina I, Colangelo F, Feo L, Fraternali F. Multi-Material Additive Manufacturing of Sustainable Innovative Materials and Structures. Polymers (Basel) 2019; 11:E62. [PMID: 30960046 PMCID: PMC6401995 DOI: 10.3390/polym11010062] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Revised: 12/24/2018] [Accepted: 12/27/2018] [Indexed: 11/21/2022] Open
Abstract
This paper highlights the multi-material additive manufacturing (AM) route for manufacturing of innovative materials and structures. Three different recycled thermoplastics, namely acrylonitrile butadiene styrene (ABS), polylactic acid (PLA), and high impact polystyrene (HIPS) (with different Young's modulus, glass transition temperature, rheological properties), have been selected (as a case study) for multi-material AM. The functional prototypes have been printed on fused deposition modelling (FDM) setup as tensile specimens (as per ASTM D638 type-IV standard) with different combinations of top, middle, and bottom layers (of ABS/PLA/HIPS), at different printing speed and infill percentage density. The specimens were subjected to thermal (glass transition temperature and heat capacity) and mechanical testing (peak load, peak strength, peak elongation, percentage elongation at peak, and Young's modulus) to ascertain their suitability in load-bearing structures, and the fabrication of functional prototypes of mechanical meta-materials. The results have been supported by photomicrographs to observe the microstructure of the analyzed multi-materials.
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Affiliation(s)
- Rupinder Singh
- Department of Production Engineering, Guru Nanak Dev Engineering College, Ludhiana 141006, India.
| | - Ranvijay Kumar
- Department of Production Engineering, Guru Nanak Dev Engineering College, Ludhiana 141006, India.
| | - Ilenia Farina
- Department of Engineering, University of Naples Parthenope, 80143 Naples, Italy.
| | - Francesco Colangelo
- Department of Engineering, University of Naples Parthenope, 80143 Naples, Italy.
| | - Luciano Feo
- Department of Civil Engineering, University of Salerno, 84084 Fisciano (SA), Italy.
| | - Fernando Fraternali
- Department of Civil Engineering, University of Salerno, 84084 Fisciano (SA), Italy.
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