（1）应用于塑料合金。相容剂的出现主要是为高分子材料合金技术服务的。所谓高分子合金，即由两种或两种以上具有不同性质的高分子材料经共混并采用相应的相容化技术而得到的多相多组分体系。而这样的高分子合金、共混、改性的重要关键材料就是相容剂。相容剂对合金技术的微观相态结构起到很好的调整和控制作用，而使共混材料实现高性能化和功能化的效果。相容剂广泛应用于PP/PE、PP/PA、PA/PS、PA/ABS、ABS/PC、PBT/PA、PET/PA、PP/POE、PE/EPDM、TPE/PU等合金。

(1) applied to plastic alloy. The emergence of compatibilizer is mainly for the service of polymer alloy technology. The so-called polymer alloy is a multiphase multicomponent system which is obtained by blending with two or more than two kinds of polymer materials with different properties and adopting the corresponding compatibilization technology. The key ingredient of such polymer alloy, blending and modification is compatibilizer. Compatibilizer plays a good role in adjusting and controlling the microstructure of the alloy, which makes the blend material highly functional and functional. Compatibilizer is widely used in alloys such as PP/PE, PP/PA, PA/PS, PA/ABS, ABS/PC, PBT/PA, PET/PA, PP/POE, PE/EPDM, TPE/PU and so on.

（2）应用于聚合物的改性。由于相容剂是以活跃自由基分子羧基掺入非极性与极性聚合物之间起“桥梁”作用，将其改性成为极性的改性聚合物，再使其与极性的聚合物共混，两者之间进行反应而制得良好的改性共混效果。

(2) applied to the modification of the polymer. Because the compatibilizer is a "bridge" between the active free radical and the polar polymer, it is modified into a polar modified polymer, and then the polymer is blended with the polar polymer, and a good modification is made between the two.

（3）应用在回收废话旧塑料。利用相容剂回收废旧塑料，使之成为新的塑料合金或新的改性塑料，是“废物综合利用”比较好的可行办法，并可解决“白色污染”问题，具有很大的社会效益和企业经济效益。在国外已有很多先例，如荷兰国家矿业公司生产的BENNET相容剂，就是用于回收废旧塑料再生的专用相容剂，可以把两种或多种不同品种、不同性质的旧塑料，如聚烯烃塑料与工程塑料的边角料的共混再生，添加5%-10%相容剂作为海相或岛相之间的界面层，发挥相容剂的键合力极性相容基团效率，而制备成为一种新的塑料合金或改性塑料。

(3) used in recycling waste plastic. Recycling of waste plastics with compatibilizer to make it a new plastic alloy or new modified plastic is a feasible and feasible method of "comprehensive utilization of waste", and can solve the problem of "white pollution", which has great social and economic benefits. There are many precedents abroad, such as the BENNET compatibilizer produced by the Holland national mineral company, which is used as a special compatibilizer for recycling waste plastics. It can blend two or more different varieties and different properties of old plastics, such as polyolefin plastics and engineering plastics, and add 5%-10% compatibilizer as the compatibilizer. The interfacial layer between the marine or island phases plays a key role in the compatibility of the compatibilizer and becomes a new plastic or modified plastic.