Heat-resistant easy-to-tear PVDC film and preparation method thereof

The invention discloses a heat-resistant easy-to-tear PVDC film and a preparation method thereof. The heat-resistant easy-to-tear PVDC film comprises the following raw materials in parts by mass: 100 parts of polyvinylidene chloride, 5-10 parts of a plasticizer and 1-2 parts of a calcium-zinc stabilizer, the comonomer of polyvinylidene chloride comprises the following components in parts by mass: 70-90 parts of polyvinylidene chloride, 10-15 parts of vinyl chloride and 2-5 parts of a vinyl compound with a nitrogen heterocyclic ring. The PVDC film provided by the invention has good thermal stability, is not easy to degrade under a heated condition, and is beneficial to improving the processing performance and the use performance of the PVDC film. 本申请公开了一种耐热易撕PVDC膜及其制备方法。以质量份计，该耐热易撕PVDC膜包括如下原料：聚偏二氯乙烯100份、增塑剂5～10份、钙锌稳定剂1～2份；以质量份计，所述聚偏二氯乙烯的共聚单体包括：偏二氯乙烯70～90份、氯乙烯10～15份、具有含氮杂环的乙烯基化合物2～5份。本申请的PVDC膜具有良好的热稳定性，在受热条件下不易降解，有利于提高PVDC膜的加工性能和使用性能。