Preparation and characteristics of flexible polyurethane foam filled with expanded vermiculite powder and concave-convex structural panel
We have synthesized a flexible polyurethane foam composite filled with expanded vermiculite powder and covered by concave-convex structural panel in order to improve the compression and cushioning property of PU foam. Concave-convex structural panel is that fabric cubes consisting of three layers of...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-05-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785421002726 |
| _version_ | 1819139827736510464 |
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| author | Ting-Ting Li Peiyao Liu Hongyang Wang Wenna Dai Jie Wang Zhike Wang Bing-Chiuan Shiu Ching-Wen Lou Jia-Horng Lin |
| author_facet | Ting-Ting Li Peiyao Liu Hongyang Wang Wenna Dai Jie Wang Zhike Wang Bing-Chiuan Shiu Ching-Wen Lou Jia-Horng Lin |
| author_sort | Ting-Ting Li |
| collection | DOAJ |
| description | We have synthesized a flexible polyurethane foam composite filled with expanded vermiculite powder and covered by concave-convex structural panel in order to improve the compression and cushioning property of PU foam. Concave-convex structural panel is that fabric cubes consisting of three layers of warp-knitted spacer fabrics arranged isometric apart between two layers of low-melting-point PET fabrics and then thermally processed at 180 °C. Effects of particle size and content of expanded vermiculite powders as well as the presence of concave-convex structural panel are examined in terms of foam structure and mechanical properties of composite PU foams. Expanded vermiculite addition decreases the energy required by pore nucleation, and the higher content of expand vermiculite results in pore diameter of foam and greater compression property. Filling of 2% vermiculites makes the compression property improved by 239% at 40% strain. Moreover, the smaller size of expanded vermiculite generates smaller and denser foam pore diameter and thus strengthened compression property. Foam composite with 800-mesh expanded vermiculites show the excellent compression property that 307% higher than neat PU foam at 40% strain. Concave-convex structural panel enhanced compression properties by 852% when fabric cubes arranged 1 cm apart and cushion efficiency by 29% compared to pure PU foam when fabric cubes arranged 4 cm apart. The resultant flexible polyurethane foam can absorb 97% energy at 12 J impact level. This composite can serve as the protective materials in kindergarten and old people's home. |
| first_indexed | 2024-12-22T11:28:51Z |
| format | Article |
| id | doaj.art-ed7286200fc245d38216fdc5da9a3d07 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-12-22T11:28:51Z |
| publishDate | 2021-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-ed7286200fc245d38216fdc5da9a3d072022-12-21T18:27:41ZengElsevierJournal of Materials Research and Technology2238-78542021-05-011212881302Preparation and characteristics of flexible polyurethane foam filled with expanded vermiculite powder and concave-convex structural panelTing-Ting Li0Peiyao Liu1Hongyang Wang2Wenna Dai3Jie Wang4Zhike Wang5Bing-Chiuan Shiu6Ching-Wen Lou7Jia-Horng Lin8Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, China; Tianjin and Ministry of Education Key Laboratory for Advanced Textile Composite Materials, Tiangong University, Tianjin 300387, ChinaInnovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, ChinaTianjin Fire Research Institute of M.E.M, Tianjin 300381, ChinaInnovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, ChinaInnovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, China; Tianjin and Ministry of Education Key Laboratory for Advanced Textile Composite Materials, Tiangong University, Tianjin 300387, ChinaInnovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, ChinaOcean College, Minjiang University, Fuzhou 350108, ChinaInnovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, China; Department of Bioinformatics and Medical Engineering, Asia University, Taichung 41354, Taiwan; Fujian Key Laboratory of Novel Functional Textile Fibers and Materials, Minjiang University, Fuzhou 350108, China; Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 40402, Taiwan; Corresponding author.Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, China; Ocean College, Minjiang University, Fuzhou 350108, China; Laboratory of Fiber Application and Manufacturing, Department of Fiber and Composite Materials, Feng Chia University, Taichung 40724, Taiwan; School of Chinese Medicine, China Medical University, Taichung 40402, Taiwan; Corresponding author.We have synthesized a flexible polyurethane foam composite filled with expanded vermiculite powder and covered by concave-convex structural panel in order to improve the compression and cushioning property of PU foam. Concave-convex structural panel is that fabric cubes consisting of three layers of warp-knitted spacer fabrics arranged isometric apart between two layers of low-melting-point PET fabrics and then thermally processed at 180 °C. Effects of particle size and content of expanded vermiculite powders as well as the presence of concave-convex structural panel are examined in terms of foam structure and mechanical properties of composite PU foams. Expanded vermiculite addition decreases the energy required by pore nucleation, and the higher content of expand vermiculite results in pore diameter of foam and greater compression property. Filling of 2% vermiculites makes the compression property improved by 239% at 40% strain. Moreover, the smaller size of expanded vermiculite generates smaller and denser foam pore diameter and thus strengthened compression property. Foam composite with 800-mesh expanded vermiculites show the excellent compression property that 307% higher than neat PU foam at 40% strain. Concave-convex structural panel enhanced compression properties by 852% when fabric cubes arranged 1 cm apart and cushion efficiency by 29% compared to pure PU foam when fabric cubes arranged 4 cm apart. The resultant flexible polyurethane foam can absorb 97% energy at 12 J impact level. This composite can serve as the protective materials in kindergarten and old people's home.http://www.sciencedirect.com/science/article/pii/S2238785421002726Polyurethane foamExpanded vermiculite powderWarp-knitted spacer fabricCushioning propertiesCompression performance |
| spellingShingle | Ting-Ting Li Peiyao Liu Hongyang Wang Wenna Dai Jie Wang Zhike Wang Bing-Chiuan Shiu Ching-Wen Lou Jia-Horng Lin Preparation and characteristics of flexible polyurethane foam filled with expanded vermiculite powder and concave-convex structural panel Journal of Materials Research and Technology Polyurethane foam Expanded vermiculite powder Warp-knitted spacer fabric Cushioning properties Compression performance |
| title | Preparation and characteristics of flexible polyurethane foam filled with expanded vermiculite powder and concave-convex structural panel |
| title_full | Preparation and characteristics of flexible polyurethane foam filled with expanded vermiculite powder and concave-convex structural panel |
| title_fullStr | Preparation and characteristics of flexible polyurethane foam filled with expanded vermiculite powder and concave-convex structural panel |
| title_full_unstemmed | Preparation and characteristics of flexible polyurethane foam filled with expanded vermiculite powder and concave-convex structural panel |
| title_short | Preparation and characteristics of flexible polyurethane foam filled with expanded vermiculite powder and concave-convex structural panel |
| title_sort | preparation and characteristics of flexible polyurethane foam filled with expanded vermiculite powder and concave convex structural panel |
| topic | Polyurethane foam Expanded vermiculite powder Warp-knitted spacer fabric Cushioning properties Compression performance |
| url | http://www.sciencedirect.com/science/article/pii/S2238785421002726 |
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