Effect of fluoropolymer processing aids on the processibility of an octene LLDPE

摘要

Polymer processing additives (PPA) have found their niche in the extrusion and processing of polyolefins, especially to improve their processing characteristics. It has been known that PPA can be used in the range of 100-1000 ppm to eliminate surface defects including melt fracture and gels, as well as to reduce die build up. The main focus of this paper is to determine the effect of various fluoropolymer processing aids in the elimination of melt fracture of an octene linear low density polyethylene. Also the influences of both antiblocking agent and slip additive on the performance of PPA are assessed.