Company Details

Shandong Novista Chemicals Co.,Ltd (Novista Group) [Shandong,China] Business Type:Manufacturer , Service , Distributor/Wholesaler Main Markets: Africa , Americas , Asia , Caribbean , East Europe , Europe , Middle East , North Europe , Oceania , Other Markets , West Europe , Worldwide Exporter:71% - 80% Certs:GB, OHSMS, FDA

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PVC Processing Aids Hysical Properties

2022-02-18

PVC Processing Aids Hysical Properties

PVC processing aids are the main raw materials for acrylic esters and methyl methacrylate. In the actual production, usually the first acrylic and other monomers (such as styrene, acrylonitrile, etc.) by emulsion polymerization to form a glass transition temperature of the polymer, that is, with the elastic properties of the core, and then with methacrylic acid Methyl ester, styrene and the like to form a polymer having a core-shell structure. The emulsion solid content of this emulsion polymerization is generally about 45% ± 3%, the emulsion and then dehydrated to make the product less than 1% water content (mass fraction), to obtain white powder products.

Core-shell emulsion polymerization is the core of ACR resin production technology. Although the core structure of ACR has "hard core-soft shell structure", "soft-core-hard shell structure" and "hard-soft-hard three-layer structure", but the current market sales of the main varieties of " Hard shell structure ", with the structure of ACR resin performance is good, more widely used. "Soft-core-hard shell structure" of the core-shell emulsion polymerization, the process is the first step in the emulsion polymerization of the formation of soft latex particles grafted hard monomer. The types and amounts of emulsifiers, the ratio of core-shell, shell monomer feeding, the degree of crosslinking of rubber latex (rubber core), the size of seed and the type and amount of crosslinking agent, and so on. The core-shell structure and ACR's final product performance have a significant impact.

The addition of PVC processing aids in plastic processing is a chemical that produces a chemical reaction at the time of processing. We know that the chemical industry is relatively harmful to the human body, then the PVC processing aids on the human body is harmful? We come to introduce: PVC processing aids are acrylic copolymers, harmless to the body, is absolutely safe. PVC processing aids physical properties for the flow of white powder, non-toxic, non-corrosive, non-dangerous goods, PVC is a very toxic compound, can cause liver, nerve and bone damage. In addition, the use of PVC raw materials to produce toys also have adverse effects on the body, because the aging of PVC can be decomposed on the human body harmful hydrogen chloride gas, if the child often put the PVC toys in the mouth to suck, these harmful substances will intake In vivo, affecting health.

In summary: PVC material on the human body have a certain impact, and PVC processing aids is not affect the health of the body. We choose PVC processing aids when you can rest assured that the choice of good quality PVC processing aids products. Quality is the quality of the product guarantee, but also manufacturers based on the fundamental market. In recent years, with the people in life, the extensive use of plastic products, plastic processing needs also increased, in our work and life, plastic products become our main necessities. In this era of plastic, production and processing is also in short supply. PVC plastic has entered a new era. As a Processing Aid products, PVC processing aids is more concerned about. Concern is not just concerned about the quality and price of PVC processing aids, due to the increasing demand, some PVC processing aids manufacturers aimed at the timing, aimed at the opportunity to increase efforts to produce, there is also some lack of quality PVC processing aids products. As China's quality supervision departments increasingly strict supervision mechanism, counterfeit PVC processing auxiliaries or not appear in the market, but some of the quality is not very good processing auxiliaries or potential products.

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