The role of PVC processing aids

For PVC pure resin, when processing we are not very good to operate, his fluidity is relatively poor, and weather resistance is not very good, so we need to add PVC processing aids to improve its performance when processing, about the characteristics of the role of such products, there are mainly the following performance, the following Bangtai Petrochemical will give you a brief introduction:1, oxidized polyethylene wax has low viscosity, high softening point, good hardness and other special properties, non-toxicity, good thermal stability, low high temperature volatility, good dispersion of fillers and pigments, both excellent external lubricity, and strong internal lubrication, but also has a coupling effect, can improve the production efficiency of plastic processing, reduce production costs and other characteristics, can be used as concentrated masterbatch, polypropylene masterbatch, additive masterbatch, filling masterbatch and other pigments or filler dispersants, lubricants, brighteners, coupling agents;2, increase lubricity: improve mold release, prevent product bonding, delay melting, and reduce torque;

3, polyethylene wax has low viscosity, high softening point, good hardness and other properties, non-toxic, good thermal stability, low high temperature volatility, dispersion of pigments, both excellent external lubricity, and strong internal lubrication, can improve the production efficiency of plastic processing, good anti-humidity performance at room temperature, strong chemical resistance, excellent electrical properties, can improve the appearance of finished products. This PVC processing additive can be widely used in the manufacture of masterbatches, granulation, plastic steel, PVC pipes, hot melt adhesives, rubber, shoe polish, leather brighteners, cable insulation materials, floor waxes, plastic profiles, inks, injection molding and other products;

4. Sasol wax has better electrical properties than paraffin wax, higher melting point and hardness, narrower fraction, and can replace carnauba wax in terms of luster. Can be used as an internal and external lubricant for various plastics for the production of durox pine wax and the development of a wider range of uses;

5, PVC processing auxiliary microcrystalline wax has good oil absorption performance, can form a stable and uniform paste with a variety of solvents and waxes, and has emulsification, can be used as shoe polish, auto wax, polishing wax, floor wax, glazing wax, Chinese medicine pills, protective agents, candles, wax toys, dental materials and cosmetics and other processing aids;6, promote melting and increase elasticity: promote the melting of the material, improve the surface gloss, promote the expansion of the mouth mold (to prevent down and lengthening).

　　The above is the performance of the role of PVC processing aids, for PVC products to add processing aids is essential, we must also follow the correct processing methods when using it.