描述

再研磨PP工厂GRS级PP树脂价格

PP材料的优势

1。比重低，吸水率低

二,。成本低，模具性能好

三,。优异的耐水性和耐热性

四,。平衡的机械性能

五,。优异的电气性能

六,。耐候性和抗水解性

七,。符合UL 94 V-0易燃性标准

再研磨PP工厂GRS级PP树脂价格

产品详细信息

再研磨PP工厂GRS级PP树脂价格

PP化学性质：PP（聚丙烯）化学稳定性非常好，除强氧化剂和非极性溶剂外，还能使PP降解，（如：浓硫酸、浓硝酸、烟硫酸、烟硝酸、铬酸溶液、卤素、苯、四氯化碳、氯仿等），PP具有很强的耐化学侵蚀性。浓度较低的溶液对PP无害。然而，低分子量的脂肪烃、汽油、二甲苯、氯化烃等会使PP（聚丙烯）软化和膨胀。共轭溶胀度高于均匀溶胀度。当PP从该溶剂中去除时，其尺寸恢复到原来的状态。由于PP的高惰性表面，在没有火焰处理或类似技术的情况下，很难在PP上打印、涂漆和粘合

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Regrind PP Factory GRS Grade PP Resin Price

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PP Material Advantages
1. Low Specific Gravity and low Water Absorption.
2. Low-cost and high Mold-ability.
3. Excellent Water Resistance and Heat Resistance.
4. Balanced Mechanical properties.
5. Excellent Electrical properties.
6. Weather Resistance and Hydrolysis Resistance.
7. Conforms to UL 94 V-0 Flammability Standards.

Regrind PP Factory GRS Grade PP Resin Price

Product Details

Regrind PP Factory GRS Grade PP Resin Price

PP chemical properties: PP (polypropylene) chemical stability is very good, in addition to strong oxidants and non-polar solvents can make PP degradation, (e.g.: concentrated sulfuric acid, concentrated nitric acid, smoke sulphuric acid, smoke nitric acid, chromic acid solution, halogen, benzene, carbon tetrachloride, chloroform), PP has a strong resistance to chemical attack. A solution with a lower concentration is harmless to PP. However, low molecular weight of fatty hydrocarbons, gasoline, xylene, chlorinated hydrocarbons and so on can make PP (polypropylene) soften and swell. The degree of conjugate swelling is higher than that of homogeneity. When PP is removed from this solvent, its size is restored to its original condition. Because of the high inert surface of PP, it is difficult to print, paint and bond on PP without flame treatment or similar techniques.

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