[PVC Transparent Internal Lubricant] Zhenjiang Xinlian Plastic New Material Tells You About PVC Lubricants
Release time: 2019-8-22 14:13:41
[PVC Transparent Internal Lubricant] PVC Transparent Internal Lubricant Company Zhenjiang Xinlian Plastic New Material tells you about the introduction of PVC lubricant. The role of the lubricant is to improve the fluidity of the resin and the release of the product in the plastic processing to prevent it from being inside the machine. Or defects in the mold due to adhesion. Generally added in the molding compound or coated on the surface of the cavity. Commonly used lubricants are fatty acids and their salts, and long-chain aliphatic hydrocarbons. It can be divided into external lubricant and internal lubricant according to different mechanisms of lubricant action.
(1) External lubricant: This lubricant has poor compatibility with the molding resin, so it is often used on molding processing machines or molds. A lubricant layer is formed between it and the resin to facilitate resin flow and product release. , Such as paraffin.
(2) Internal lubricant: This kind of lubricant has good compatibility with the resin. It is often mixed into the resin to reduce the melt viscosity of the resin and improve its fluidity. Such as butyl stearate, lead stearate and so on. Stearates are both good lubricants and effective stabilizers.