硬质泡沫塑料是指无柔韧性,压缩硬度大,应力达到一定值能产生形变,解除应力后不能恢复原状的泡沫塑料。ISO还规定将其压缩至50%再解除压力后厚度减少10%以上的泡沫塑料为硬泡沫塑料。常利用其隔热性和力学特性用于有关方面。代表性的产品是聚苯乙烯泡沫塑料、硬质聚氨酯泡沫塑料,还有酚醛、氨基、环氧、热固性丙烯酸酯树脂等泡沫塑料,以及硬质聚氯乙烯泡沫塑料。可用作隔热材料、夹层材料、包装材料、隔音和防震材料、建筑材料等。
建筑用聚异氰脲酸酯泡沫的研制 关键词:聚异氰脲酸酯泡沫;硬质泡沫塑料;聚氨酯;隔热板材;组合聚醚 [gap=5598]Keywords:poiyisocyanumte foam;rigid foam;polyurethane;insulation panel;prennxed yol
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... Rigid Transparent Plastics 硬质透明塑料市场研究报告 rigid foamed plastics 硬质泡沫塑料 ; 半硬质泡沫塑料 rigid expanded plastics 硬泡沫塑料 ...
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...范中文名: 硬质泡沫塑料 弯曲性能的测定 第2部分弯曲强度和表观弯曲弹性模量的测定 标准/规范英文名: Rigid cellular plastics - Determination of flexural properties - Part 2: Determination of flexural stre..
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半硬质泡沫塑料 semi-rigid foamed plastics ; rigid foamed plastics
聚氨酯硬质泡沫塑料 PURF
硬质泡沫塑料衬垫包装 blister packaging
硬质聚氨酯泡沫塑料 RPUF ; Rigid polyurethane foams ; rigid polyurethane foam plastic ; pur foam plastics
硬质聚醚型泡沫塑料 rigid polyurethane foam plastics
半硬质聚氨酯泡沫塑料 Semi-rigid polyurethane foams ; SRPUF
硬质聚氯乙烯泡沫塑料 Rigid polyvinyl chloride foams
硬质PU泡沫塑料 rigid polyurethane foamed plastics
介绍了固体火箭发动机喷管硬质泡沫塑料堵盖的设计方法与试验过程。
Design methods and test process of nozzle closure made of hard foamed plastics for SRM are introduced.
将涤纶废产物用二甘醇和三元醇经酯基转移合成齐聚酯多元醇,并用其制备聚氨酯硬质泡沫塑料。
A study was conducted to synthesize oligoester alcohols from poly (ethylene terephthalate) production wastes via transesterification with diethylene glycol and tribasic alcohol.
它的目的用它制作航模,能克服制作尾部上翘,上表面略穹的硬质泡沫塑料机翼难以定型的困难。
It is used to produce the model airplane without causing the tail to bend upwards. The difficulty for the stereotype of the rigid foam plastic wing with dome upper surface is solved.
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