Unverified80% confidenceTradeoffTime unknown
PP绳（聚丙烯）能浮水、耐酸碱、价格低且不吸水，适合船用、潮湿环境和临时捆扎；但抗紫外线差，长期户外暴晒3-6个月后强度显著下降易脆断
1
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80%
Confidence
Long-term
Relevance
-
First Seen
Sources
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UnverifiedPP（聚丙烯）绳会浮水且不吸水，适合户外潮湿或涉水场景；但PP耐紫外线差，长期户外暴晒6-12个月会明显脆化断裂，长期户外用途应选加了抗UV的尼龙或涤纶91% similarUnverified尼龙材质吸水后强度下降且易延展变形，长期户外或潮湿环境固定重物应选涤纶(聚酯)材质，涤纶低吸水率、抗紫外线且延展率低（受力更稳定）75% similarUnverified覆膜PVC材质具备基本防水防潮能力，适合张贴在游泳池旁、食堂、车间等可能接触水汽的场所，但长期户外暴晒仍会褪色老化74% similarUnverifiedPP聚丙烯材质具备基本防水性，日常防泼溅没问题，但不适合长时间浸水环境73% similarUnverified内覆膜防水适合短途搬家防雨防潮，但不耐长期日晒，覆膜层会老化脱落，不适合户外长期存储使用73% similar
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