Unverified75% confidenceFactTime unknown
XPE材质是交联聚乙烯发泡材料，密度通常在35-60kg/m³，密度越高回弹越好越耐踩塌，选购时可问商家密度参数，低于30kg/m³易久用变形
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UnverifiedXPE材质围边密度通常在30-60kg/m³，密度越高越耐压不易变形，学步期防撞建议选密度偏高款；表面PU或PE覆膜层可提升防水与耐磨性87% similarUnverifiedXPE材质密度越高（≥28kg/m³）越抗压不变形，长期放置家具或反复踩踏不易凹陷；低密度XPE短期回弹好但半年内易塌陷失去缓冲79% similarUnverifiedXPE材质爬行垫厚度≥1.5cm可有效缓冲学步期跌倒冲击，PVC材质因密度更高需≥2cm才达到同等缓冲效果77% similarUnverifiedXPE材质爬行垫厚度≥1.5cm可有效缓冲爬行期跌倒冲击，硬地面（瓷砖/木地板）建议2cm以上；纯棉/EPE材质需≥2.5cm才能达到同等缓冲72% similarUnverifiedXPE材质爬行垫厚度≥1.5cm可有效缓冲学步期跌倒，PE珍珠棉材质需≥2cm才能达到同等缓冲效果70% similar
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