The result showed(1)The impact strength of untoughened PVC could be improved by PS, but resulting in a decrease of tensile strength at break.

结果表明，（1）PS能提高未增韧PVC体系的冲击强度，但导致屈服应力下降；

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Textile conveyor belts - Full thickness tensile testing - Part 1: determination of tensile strength, elongation at break and elongation at the reference load.

织物传送带。全厚度拉伸试验。第1部分：拉伸强度、断裂伸长率和标准负荷下伸长率的测定。

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Factory seized items: density, tensile strength, elongation at break.

本厂可检项目：密度、抗张强度、断裂伸长率。

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