Application of PVC processing aids

When we produce and process resin products, we need to choose different PVC processing aids according to different needs, which can help change some unwanted properties of pure resins, so that the processed products have better results. So what aspects of its application, let's take a look at it.

　　1, impact modifier: plastic processing, if the impact modifier is not added, the plastic product will become very brittle and hard, a little impact, there will be cracks, can not guarantee the quality and service life. The role of the impact modifier is to make the plastic product more resistant to the external environment.

　　2, heat stabilizer: plastic processing plastic type will be heated treatment, in the heating process, plastic will inevitably appear unstable performance phenomenon. Heat stabilizers are added to stabilize the performance of PVC materials during the heating process.

　　3, improved processing aids: the so-called improved type, as the name suggests, is to improve some of the performance of PVC processing, including improving the poor fluidity of PVC, easy to stick to the equipment coking, so in the production of plastic profiles need to add a certain amount of processing aids to overcome the defects of plastic profiles themselves.

　　4, filler: filler is a kind of solid additive that is different from plastic in composition and structure, also known as filler. It has obvious effect and economic value in improving some physical and mechanical properties of plastics and reducing the cost of plastics. The addition of fillers to the plastic profile production formula can reduce the rate of change in the size of the plastic profile after heating, improve the impact strength, increase the rigidity, and reduce the production cost.

5, light stabilizer: light stabilizer can inhibit the photooxidation degradation reaction of polymers by shielding and absorbing ultraviolet rays, quenching excitation energy to capture free radicals, etc., thereby giving products a good light stability effect and prolonging their service life.

　6, lubricant: the main role of the lubricant is to reduce the mutual friction between the polymer and the processing equipment and the polymer internal molecules, to prevent the degradation of the resin caused by excessive friction heat, and to improve the efficiency of the heat stabilizer.

　　The above is about the application of PVC processing aids, mainly from the above 6 points to help us processing aids. In addition, we should pay more attention to the relevant use precautions about it when using it, so as to make it better operation.