When we produce and process resin products, we need to choose different PVC processing aids according to different needs. It can help change some unwanted properties of pure resin, so that the processed products have better effects. So what are the aspects of its application, let's take a look at it together.
1. Impact modifier: During plastic processing, if no impact modifier is added, the finished plastic product will become very brittle and hard, and there will be cracks after a little impact, which cannot guarantee the quality and service life. The role of the impact modifier is to make the plastic product more resistant to the force of the external environment.
2. Heat stabilizer: plastic processing and molding will be heated, and during the heating process, the plastic will inevitably have unstable performance. The heat stabilizer is added to stabilize the performance of the PVC material during the heating process.
3. Improved processing aids: The so-called improved processing aids, as the name suggests, is to improve some properties of PVC during processing, including improving the poor fluidity of PVC, which is easy to stick to the equipment and coking, so it is necessary to add a certain amount in the production of plastic profiles. Processing aids to overcome the defects of the plastic profile itself.
4. Filler: Filler is a solid additive that is different from plastic in composition and structure, also known as filler. It has obvious effect and economic value on improving some physical and mechanical properties of plastics and reducing the cost of plastics. Adding fillers to the production formula of plastic profiles can reduce the dimensional change rate of the plastic profiles after heating, improve the impact strength, increase the rigidity, and also reduce the production cost.
5. Light stabilizer: Light stabilizer can inhibit the photo-oxidative degradation reaction of polymers by shielding and absorbing ultraviolet rays, quenching excitation energy to capture free radicals, etc., thereby giving products a good light stabilization effect and prolonging their service life.
6. Lubricant: The main function of the lubricant is to reduce the mutual friction between the polymer and the processing equipment and between the molecules inside the polymer, prevent the resin degradation caused by excessive frictional heat, and improve the efficiency of the thermal stabilizer .
The above is about the relevant application of PVC processing aids, mainly from the above 6 points to help us in processing. In addition, we should also pay more attention to the relevant use precautions when using it, so as to make it operate better.