松香基成核剂的研究及应用进展

Research and application progress of rosin nucleating agent

松香基成核剂以天然产物松香为原料,其成本低廉、无毒、无味、成核效率高,已逐渐成为研究者所青睐的聚烯烃树脂改性剂。本文综述了松香及其衍生物类成核剂在聚丙烯、聚乙烯等聚烯烃树脂中的改性研究进展,提出了添加松香基成核剂是改性聚烯烃树脂的有效方式之一,讨论了该类成核剂与传统成核剂的各项性能之间的差异,包括耐高温性、分散性、环保性以及成本之间的区别;对该类成核剂改性聚烯烃树脂时的成核结晶机理进行了简述,提出了松香基成核剂所存在分散性较差等问题以及相应解决手段,例如在挤出造粒之前添加一定量的分散剂等;重点介绍了如何高效利用松香基成核剂,及其如何与多种物质共同发挥协同作用的方法,并在此基础上对松香基成核剂的发展趋势进行了展望。

The raw material of rosin-type nucleating agent is a nature product with low cost,non-toxic,tasteless and high efficiency of excellent nucleation.It gradually becomes the modified agent ofpolyolefin resin that researchers are keened on.This paper summarized the recent advances on the nucleating agents of rosin and its derivatives for modifying some polyolefin resins,such aspolypropylene,polyethylene,and the others.It is suggested that adding rosin-type nucleating agent is one of effective ways to modify the polyolefin resin.And the distinctions between the nucleating agent and traditional nucleating agent were also discussed,including its high temperature resistance,dispersion,environmental friendliness,and low cost.Meanwhile,the nucleation mechanism for decorating polyolenfin resin with rosin-type nucleating agent is discussed,and the solutions to poor dispersion problems were proposed,such as adding a certain amount of dispersant before extruding to granulate.Furthermore,using rosin type nucleating agent efficiently and exerting synergistic effects with a myriad of substances were introduced.Finally,the future development of rosin-type nucleating agent was proposed.