一种PTFE微孔包材及其制备方法和干燥剂
本申请涉及一种PTFE微孔包材及其制备方法和干燥剂,属于包材技术领域。一种PTFE微孔包材,包括:由上至下依次设置的第一微孔层和第二微孔层,第一微孔层的材质为PTFE,第二微孔层的材质为PP或PET,第一微孔层的第一孔隙率大于第二微孔层的第二孔隙率,第一微孔层的第一平均孔径小于第二微孔层的第二平均孔径;第二微孔层用于与待包装产品接触。该PTFE微孔包材兼具较好的耐高温、耐候性、透气性、机械强度和耐折叠性,且具有湿度响应性释放性能。
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