Unverified80% confidenceTradeoffTime unknown
PP（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
1
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80%
Confidence
Long-term
Relevance
-
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UnverifiedPP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91% similarUnverified长期户外/海边使用应选EPE聚乙烯泡沫实心圈或聚氨酯发泡圈，避免充气式PVC款——充气款一旦被尖锐物刺破立即失效，且长期日晒易老化开裂76% similarUnverifiedPVC静电贴防水但不耐候，长期直晒户外或阳台会在1-2年内脱色发脆；PET材质耐候性更好但静电吸附通常较弱需搭配少量水76% similarUnverified室外/埋地布线不要用普通PVC护套线，需选UV抗紫外+防水（含胶体/Flooded）的室外级同轴，否则1-2年护套龟裂进水导致信号衰减75% similarUnverified户外长期风吹日晒场景不建议选无UV处理的普通塑料防水盒，1-2年内会脆化开裂丧失防水性，应选抗UV等级材质或带遮阳罩安装74% similar
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