Unverified82% confidenceDecision RuleTime unknown
缓冲填充优先选高回弹记忆棉或PU发泡，厚度2-3cm；避免纯珍珠棉（EPE）填充，回弹差、防护缓冲效果弱且易变形
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Unverified支撑核心应选高密度硬泡棉（密度≥45kg/m³）作为承托层，记忆棉仅适合做贴合表层；纯记忆棉腰托受压后会持续下陷，无法提供稳定支撑79% similarUnverifiedEPE珍珠棉密度常见18-25kg/m³，密度越高缓冲越硬支撑越强但回弹缓冲行程越短，精密仪器减震宜选低密度多层，重物承托宜选高密度76% similarUnverifiedEPE珍珠棉厚度≥5mm可缓冲1米内跌落，但精密电子/玻璃制品需≥15mm或用EPE与气柱袋组合，单层珍珠棉对硬角冲击防护不足75% similarUnverified2.5寸机械硬盘（含移动硬盘）选择内衬记忆棉或软性泡棉的保护包即可，缓冲层3-5mm足够，因2.5寸盘体已有一定内部减震结构74% similarUnverified缓冲层厚度≥8mm的高密度EVA或记忆棉才能有效抵御桌面高度（约70cm）跌落冲击，常见3-5mm薄款仅防刮擦不防摔74% similar
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