In soft PVC, since plasticizers can effectively reduce the viscosity of the melt, only PVC external lubricants are generally required. Lubricants commonly used in soft PVC mainly include fatty acid, Metallic soap, polyethylene wax, oxidized polyethylene wax, long-chain ester and amide. In this artical, Sainuo pe wax manufacturer will will take you to understand the role of polyethylene wax in the processing of soft PVC.

1. When mixing in the mixer, polyethylene wax can effectively mix the materials on the working surface of the roller and prevent roller sticking.
2. In rolling processing, the function of pe wax is similar, but it also has some special functions, which are beneficial for material transfer and roll off between rolls, and ensure the surface smoothness of thin films and sheets.

3. During extrusion processing, polyethylene wax can prevent material adhesion and retention in the groove of the machine wall and screw, which is beneficial for product demolding and ensures its surface smoothness and luster.
4. In injection molding processing, polyethylene wax can prevent material from adhering to the cylinder wall of the machine, which is beneficial for material detachment from the mold cavity. However, in compression molding processing, it only has the latter function.

In soft PVC, the amount of polyethylene wax is generally in the range of 0.25 to 1.5 parts. The specific dosage depends on the type and dosage of resin, plasticizer, and other components in the formula, as these components may all affect the lubrication effect.
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Qingdao Sainuo Group. We are manufacturer for PE wax, PP wax, OPE wax, EVA wax, PEMA,EBS,Zinc/Calcium Stearate…. Our products have passed the REACH, ROHS, PAHS, FDA testing.
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