本发明公开一种具有消除熔体破裂效果的含氟聚合物助剂母料。通过利用含氟聚合物助剂母料改善UHMWPE/PE合金的流动性,减少合金挤出加工过程中“鲨鱼皮”现象。本发明的技术方案:以含氟聚合物助剂为添加剂,以不同类型聚乙烯材料为基体树脂,制备一种具有消除熔体破裂效果的含氟聚合物助剂母料。其由以下质量比例的原料加工制成:聚乙烯类树脂95%~99%,含氟聚合物助剂1%~5%。制备方法:(1)干燥;(2)称料;(3)混合;(4)挤出造粒。本发明制得的含氟聚合物助剂母料,具有良好的表面光洁度,可改善UHMWPE/PE类合金的“鲨鱼皮”现象,提高产能,降低能耗,有利于UHMWPE/PE合金管材的成型。
The invention discloses fluorine-containing polymer auxiliary master batch with an effect of eliminating melt fracture. By using the fluorine-containing polymer auxiliary master batch to improve the flowability of UHMWPE/PE alloy, the 'sharkskin' phenomenon in alloy extrusion is reduced. According to the technical scheme, the fluorine-containing polymer auxiliary master batch is prepared by usingfluorine-containing polymer auxiliaries as the additives and using different types of polyethylene materials as the matrix resin. The fluorine-containing polymer auxiliary master batch is prepared by,by mass percentage, 95-99% of polyethylene resin and 1-5% of fluorine-containing polymer auxiliaries. A preparation method of the fluorine-containing polymer auxiliary master batch includes the stepsof firstly, drying; secondly, weighing materials; thirdly, mixing; fourthly, performing extrusion granulation. The prepared fluorine-containing polymer auxiliary master batch is good in surface smoothness, capable of improving the 'sharkskin' phenomenon of the UHMWPE/PE alloy, capable of increasing productivity and lowering energy consumption and beneficial to the forming of UHMWPE/PE alloy pipes.