具有形状自恢复功能的阻燃EPDM胶料及其制备方法

本发明提供一种性能优异、形状自恢复能力强且满足EN45545-2HL2要求的EPDM胶料及制备方法，按重量份数计，主要由以下原料组成：EPDM生胶：100份；氧化锌：3-10份；硬脂酸：1-3份；补强填充剂：20-60份；功能助剂：1-5份；增塑剂：2-15份；防老体系：2-7份；硫化体系：3-8份；复合阻燃剂：30-50份；改性阻燃剂：15-25份，制备方法包括如下步骤：制备改性阻燃剂，在开炼机中加入EPDM生胶，一次混合后加入改性阻燃剂，混炼均匀后薄通，加入补强填充剂和复合阻燃剂，混炼，依次加入其它助剂，再次混合均匀后得到具有形状自恢复功能的阻燃EPDM胶料。 The invention provides an EPDM (Ethylene-Propylene-Diene Monomer) rubber material which is excellent in performance and strong in shape self-recovery capability and meets EN45545-2HL2 requirements and a preparation method thereof, and the EPDM rubber material mainly comprises the following raw materials in parts by weight: 100 parts of EPDM raw rubber; 3 to 10 parts of zinc oxide; 1-3 parts of stearic acid; 20 to 60 parts of a reinforcing filler; 1-5 parts of a functional auxiliary agent; 2-15 parts of a plasticizer; 2-7 parts of an anti-aging system; 3-8 parts of a vulcanization system; 30 to 50 parts of a composite flame retardant; the preparation method comprises the following steps: preparing the modified flame retardant, ad