Production process and application fields of PVC paste resin

Polyvinyl chloride (PVC) paste resin, as the name suggests, is mainly used in the form of paste. People often call this paste plasticizer, which is a unique liquid form of PVC plastic in its unprocessed state. . Paste resin is often produced by emulsion and microsuspension methods.

Due to its fine particle size, Polyvinyl Chloride Paste Resin has a texture like talc powder and is immobile. Polyvinyl chloride paste resin is mixed with plasticizer and stirred to form a stable suspension, which is made into PVC paste, also known as PVC plasticizer paste or PVC sol, and it is in this form that people use it to process it into the final product. products. During the paste making process, various fillers, diluents, heat stabilizers, foaming agents and light stabilizers are added according to the needs of different products.

The development of the PVC paste resin industry has provided a new type of liquid material that can be turned into polyvinyl chloride products only by heating. This kind of liquid material is easy to configure, has stable performance, is easy to control, is easy to use, has excellent product performance, good chemical stability, has certain mechanical strength, and is easy to color. Therefore, it is widely used in artificial leather, vinyl toys, soft trademarks, etc. Production of wallpaper, paint, foam plastic, etc.

PVC paste resin is a unique liquid form of PVC plastic in its unprocessed state. Due to its fine particle size, its texture is like talcum powder and has no fluidity. It is often mixed with plasticizers and then stirred to form a stable suspension to make PVC. paste. PVC paste resin molding can be made into special shapes and is widely used in hard products such as gloves, artificial leather, floor leather, toys, wallpaper, and automotive interior materials.

PVC paste resin can be divided into two categories based on the source of raw materials. One is based on calcium carbide, accounting for about 65% of the total output, and the other is based on VCM and EDC, accounting for about 35% of the total output. The polymerization production methods of PVC paste resin mainly include micro-suspension polymerization, seed emulsion polymerization and mixing methods. Among them, the micro-suspended PVC paste resin meets the low paste viscosity and good stability required by the special resin for gloves. Most of the glove materials currently used in the market adopt the micro-suspended production process.