环氧树脂封装模具清模胶的制备及其清模效果评价

以天然橡胶和顺丁橡胶为主体材料，采用新型清模剂制备用于环氧树脂封装模具的清模胶，并从清模剂的释放特性、清模胶与环氧树脂的粘合强度、清模剂胶对环氧树脂的溶胀性三方面进行评价。结果表明：与硫黄/交联剂BIPB清模胶相比，交联剂BIPB清模胶中的清模剂更容易散逸出来，其具有较好的清模效果；清模胶与环氧树脂的粘合强度和溶胀性主要受硫化温度和硫化时间的影响，适当延长硫化时间有利于提高清模胶与环氧树脂的粘合强度，从而改善清模效果。;The mold cleaning rubber for epoxy resin packaging mold was prepared using natural rubber and butadiene rubber as the main material with new mold cleaning agent，and the release characteristics of mold cleaning agent，the bonding strength of mold cleaning rubber and epoxy resin，the swelling property of mold cleaning rubber to epoxy resin were evaluated.The results showed that compared with the sulfur/crosslinking agent BIPB mold cleaning rubber，the crosslinking agent BIPB mold cleaning rubber was easier to dissipated the cleaning agent，which had better clearing effect.The bonding strength and swelling property between mold cleaning rubber and epoxy resin were mainly affected by the curing temperature and curing time.Prolonging the curing time was beneficial to improve the bonding strength between mold cleaning rubber and epoxy resin，thereby improving the cleaning effect