相容剂产生的背景：很多情况下，不同塑料制品需经过粘接、电镀、涂饰、印刷等二次加工。金属／塑料／金属复合层板的出现及其对于轿车、航空航天器、电子装备轻量化和隔热、吸震减振等功能要求……但多数塑料极性低、表面能低、表面活性低，需要改性，才能满足工艺要求。

Background of compatibilizer: in many cases, different plastic products need to be processed through bonding, electroplating, finishing and printing two times. The emergence of metal / plastic / metal composite laminate and its functional requirements for lightweight, heat insulation, shock absorption and vibration reduction of cars, aerospace and electronic equipment... However, most plastics have low polarity, low surface energy and low surface activity, which require modification to meet the technological requirements.

相容剂又称(高分子)增容剂，是指借助于分子间的键合力，促使不相容的两种聚合物结合在一体，进而得到稳定的共混物的助剂。这是一种高分子功能材料。

Compatibilizer, also called (polymer) compatibilizer, refers to the aid of two kinds of incompatible polymers which are combined together by the bonding force between molecules to get a stable blend. This is a kind of polymer functional material.