PVC SG8-2091 (Carbide based - SG 8) - China

Brief Overview

Vinyl chloride is the monomer used to make the synthetic polymer known as polyvinyl chloride, or PVC. There is an extensive range of applications for this thermoplastic material since it is easily molded and sculpted into different shapes. PVC is widely utilized in the plumbing, electrical, medical, and building industries and is well known for its strength, durability, and chemical resistance. PVC is frequently utilized in vinyl siding for homes, electrical wire insulation, and water and sewage pipelines. Additionally, it is utilized in medical supplies including blood bags and tubing.

Manufacturing Process

PVC resin is a thermoplastic polymer that is widely used in many industries because of its exceptional chemical resistance, affordable price, and long lifespan. When producing PVC resin, the following processes are frequently used:

1. Vinyl Chloride Monomer (VCM) Production: Ethylene is chlorinated in the presence of hydrogen chloride and oxygen to create volatile chemical monomers (VCM). Subsequently, the generated VCM gas is filtered and stored in order to be used in the subsequent stage.

2. Polymerization: The next step is to polymerize the VCM gas, either via emulsion polymerization or suspension polymerization.

• A dispersion agent and a catalyst aid in the suspension of VCM droplets in water during suspension polymerization. The polymerization process is then started by heating the mixture while it is under pressure. After that, the PVC particles are dried, cleaned, and size-sorted.

• Emulsion polymerization is a process that uses a catalyst and an emulsifier to spread VCM particles in water. The liquid is then rapidly heated and stirred to start the polymerization process. After that, the PVC particles are dried, cleaned, and coagulated.

3. Additives: Usually, PVC resin is mixed with other materials to enhance its properties. These include plasticizers, which increase flexibility, stabilizers, which stop deterioration during production and usage, fillers, which lower prices and improve mechanical characteristics, and pigments, which provide color.

4. Processing: To make the finished product, the PVC resin is then treated using a variety of techniques, including as extrusion, injection molding, and calendaring.

Applications

Thermoplastic PVC resin finds extensive application in several sectors. It's really flexible. The following uses of PVC resin are frequent:

1. Construction: Due to its low cost, weather and chemical resistance, and extended lifespan for windows, doors, pipes, and siding, PVC is widely employed in this sector of the economy.

2. Electrical: Because of its electrical qualities and fire resistance, PVC is frequently used in the electrical sector for wire insulation, electrical conduit, and cable insulation.

3. Medical: Because PVC is translucent, flexible, and biocompatible, it may be used to produce blood bags, IV bags, and tubing.

4. Automotive: PVC is utilized in the car industry for many different things, including door panels, electrical insulation, and dashboard parts.

5. Consumer products: Because PVC is inexpensive, flexible, and water resistant, it is frequently used in the production of a wide range of consumer goods, including as toys, inflatable items, and shower curtains.

6. Packaging: PVC is perfect for packaging applications like clamshells and blister packs because of its formability and transparency.