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手机保护壳软壳材料及性能要求：
Material and performance requirements for soft shell of mobile phone protective shell:
1. 安全性：无毒无臭，不能残留挥发性有毒溶剂
1. Safety: non toxic and odorless, and no volatile toxic solvents can be left
2. 保护性：具有一定抗拉、抗冲击强度，耐疲劳性和抗紫外线能力
2. Protection: it has certain tensile strength, impact strength, fatigue resistance and UV resistance
3. 信号屏蔽
3. Signal shielding
：必须具有极低的信号屏蔽性，不能干扰手机正常接收信号
: it must have extremely low signal shielding and cannot interfere with the normal signal received by the mobile phone
4. 美观性：优良的着色能力，可加工性要好，抗永久变形能力要强
4. Aesthetics: excellent coloring ability, good processability and strong resistance to permanent deformation
5. 轻便性：要求材料密度低，比强度高，轻便耐用。
5. Portability: low material density, high specific strength, portability and durability are required.
6. 成本低
6. Low cost