A tear resistant degradable packaging film and a method of making the same

By combining modified nanocellulose with specific additives, a multi-interface reinforcement mechanism was constructed, which solved the problems of poor interfacial compatibility and insufficient tear strength in the PLA/PBAT blend system, and achieved synergistic optimization of high toughness and good degradation performance.

CN122404935APending Publication Date: 2026-07-17NANJING YUANCHUANG PACKING DESIGN IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING YUANCHUANG PACKING DESIGN IND CO LTD
Filing Date
2026-06-05
Publication Date
2026-07-17

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Abstract

本发明涉及高分子材料技术领域，具体公开了一种耐撕裂可降解包装膜及其制备方法，所述耐撕裂可降解包装膜包括原料：聚乳酸、聚对苯二甲酸‑己二酸丁二醇酯、改性纳米纤维素、反应性增容剂、增塑剂、抗氧剂和助剂。本发明通过引入特定复配助剂与表面改性纳米纤维素，构建了多重界面增强与能量耗散机制，在有效解决聚乳酸与柔性聚酯共混体系界面相容性差、纳米纤维素易团聚等问题的同时，保持了材料的环境友好属性，实现了力学性能与降解性能的协同优化。
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