Unverified75% confidenceFactTime unknown
发泡橡胶(NBR)护角常见密度约0.3-0.5g/cm³，回弹性和防冲击优于EVA；硅胶护角耐温范围更广(约-40至200℃)且可耐反复擦洗
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75%
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Long-term
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Unverified食品级硅胶密封条邵氏硬度多为40-60A，橡胶（EPDM三元乙丙）密封条硬度约60-70A、抗臭氧老化性能优于普通橡胶76% similarUnverifiedNBR发泡橡胶（高密度海绵）缓冲性能优于普通PU海绵，回弹更慢、吸能更充分，适合桌角柜角等硬碰撞防护；纯硅胶偏薄但耐老化耐黄变，适合浅色家具76% similarUnverified自粘背胶优先选3M亚克力胶基（VHB系列），比普通橡胶热熔胶初粘力和持久力高，橡胶热熔胶在35℃以上环境易软化流胶导致移位75% similarUnverified缓冲效果排序为NBR发泡橡胶>软硅胶>EVA海绵>PVC泡棉；学步摔倒撞击建议厚度≥8mm的发泡橡胶或软硅胶，硬质PVC几乎无缓冲作用75% similarUnverifiedEPDM三元乙丙橡胶密封条典型密度约1.2g/cm³，撕裂强度和抗臭氧老化性能优于普通橡胶，是断桥铝门窗原厂标配材质73% similar
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