Lubricant systems for rigid PVC applications

被引：0

作者：

Falter, J.A. ^{[1
]}

Geick, K.S. ^{[1
]}

机构：

[1] Lonza Inc, Annandale, United States

来源：

Journal of Vinyl and Additive Technology | 1994年 / 16卷 / 02期

关键词：

Esterification - Esters - Ethylene - Extrusion - Heating - Lubricants - Paraffins - Physical properties - Process control - Stability - Viscosity - Weathering;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Lubricants are used in extrusion processing of rigid polyvinyl chloride (PVC) compounds to control fusion and reduce shear heating. Without lubricants, conversion to the melt state results in excessive shear heating and degradation of the compound. The present work compares new lubricant systems containing complex esters with conventional systems based on ethylene bisstearamide (EBS) and paraffin. These new systems provide improved compound stability, weatherability, and physical properties. In addition, use of these systems results in lower compound viscosity compared with the conventional lubricant packages. The effects of other characteristics of these systems, such as the degree of esterification on compound properties, are also discussed.

引用

页码：112 / 115