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[資源]
應用高分子前沿1——泡沫最新進展(英文版)
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Introduction Generally speaking, foams deliver low density and insulating properties, two features more and more appreciated in sectors as varied as aeronautics, automotive, transportation, packaging, building and others. Surprisingly, light foams are also commonly used as core materials for structural composites leading to high performance/weight ratios reducing fuel costs of automotive, transportation and aircraft applications. Insulation properties applied to building, transportation, aerospace, cryogenic sectors also generate high energy and cost savings. Manufacturers continue to look for new potential weight and cost savings through innovative high performing materials taking advantage of collateral properties of polymer foams such as high temperature behavior, cryogenic temperature applications, solvent resistance, ageing resistance etc. As for the other materials, use of renewable resources replacing petroleum is more and more required to satisfy environment trends and to obviate possible scarcity of petroleum. Obviously, ideal cases are biodegradable foams made out of renewable sources that can return to ground as carbon source after use. Starch-based foams, expanded aliphatic polyesters or PLA are proposed. Polyurethane foams partially made of natural polyols are of interest allowing to obtain properties of the same order as fossil polyurethane for a bio-carbon content of 20 up to 90%. Foam innovation includes also new processing methods. So, a versatile Microcellular Foam technology, the Mucell process is developing that enables the production of high quality plastic parts with significantly higher performance/weight ratios, enhanced dimensional stability, and reduced cycle time. The thermal insulation performance of a polyurethane rigid foam depending chiefly on the size of the foam pores, researchers and producers study new processing methods leading to smaller and smaller cell diameters resulting in Polyurethane Nanofoams for the last evolution. Hi-Tech advanced foams are another trend using engineering plastics, and advanced polymers including SAN, PET, PA, PVDF, polyimide, PEI, Pebax among others, combining the advantages (and also drawbacks) of foams and those of the used polymer. This paper deals with some innovative solutions but many other technologies are developing or emerging such as foamed composites including WPC, melamine foams, syntactic components etc. |
好書!好讀! | 新能源 | 淘貼淘寶 | 高分子電子書和資源饕餮 |
國外專業(yè)電子書2 | 【高分子】書籍、課件、文獻 | uicorn3 | 科技相關 |
經(jīng)典著作 | 高分子專業(yè)知識 | 高分子相關資料 | 實驗事故---要命呀 |
聚合物泡沫材料資源 | 文獻參考 | 聚氨酯系列 | 功能塑料 |
專業(yè)收錄 | 海盜船長 | 優(yōu)質書籍 | 醫(yī)用高分子 |
我的興趣和淘寶 | 有機 | 高分子資源收納箱F |






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