What is chlorinated polyvinyl chloride resin?

Also referred to as chlorinated polyvinyl chloride resin (or CPVC), this thermoplastic is made from polyvinyl chloride (PVC) by the chlorination process.

CPVC is made from PVC resin. Chlorine gas is then fed into the PVC under controlled conditions (e.g., a catalyst as well as high temperature and pressure). This chlorination reaction replaces certain hydrogen atoms of the PVC polymer chain with chlorine atoms. The degree of chlorination (amount of chlorine content per 100g of resin) can vary but usually increases the chlorine content in the resin from 56% in PVC to about 63 - 67% in CPVC.

Of particular note is CPVC's high heat resistance relative to PVC. Typically, PVC begins to soften at fairly low temperatures, which restricts its use in areas where heat is involved. In contrast, CPVC exhibits better performance at elevated temperatures, maintaining its shape and mechanical properties under heat stress. Thus, it is usable for hot - water supply systems. CPVC is very commonly used in plumbing to transport hot water in residential and commercial buildings. When hot water coursing through the plumbing system creates pressure, they can maintain their structural integrity and withstand introductory pressure, which PVC pipes may not be able to do to a greater extent.

CPVC has excellent chemical-resistance properties, too. It has excellent chemical resistance towards a variety of industrial chemicals including near to concentrated acids and alkalis and many solvents. This quality renders it applicable and useful in chemical processing plants, as it can be employed to manufacture pipes, fittings, and storage tanks for the transportation and storage of various chemical compounds. Easily corroded chemicals can easily be flushed into the constructed CPVC system. BR> BR> CPVC has good tensile strength, impact resistance and other mechanical properties, according to the data. It can handle the pressure applied to it during process of installation and routine use. This is extremely important when CPVC pipes are being installed in structures as they need to withstand the stress of being cut, combined, or fitting into place without cracking or breaking. With its impact resistance, it could also suffer from slight impacts which might happen during the construction process, or in visibly vibrating areas, and still little deformation is acceptable.

Cost Compared to some other high - performance engineering plastics, CPVC is low cost. It has better properties than PVC, but is more cost effective than fluoropolymers and some high - temperature polyesters. Due to this cost - effective method, along with its remarkable properties, it has been fundamentally implemented in different fields.

CPVC is occasionally used as an insulating material in the electrical industry. It is used in applications which require protection for electrical components from heat conduction and electrical conduction due to its property of resistance to high temperature and electrical insulation. It can be used to manufacture wire and cable insulation, for instance, and is beneficial in applications where the wires might be at risk for higher temperatures, such as in certain in industrial contexts or in heat-generating electrical apparatus when in use.

However, as with any material, CPVC does also have its limitations. It does not have the UV - resistant ability such as some other plastics. When CPVC is exposed to direct sunlight for an extended period, the material can degrade, which may lead to changes in color and a decrease in mechanical properties. So when used outdoors it typically needs some sort of protection (e.g., painting or a UV - resistant coating).

In summary, chlorinated polyvinyl chloride resin is a flexible and commonly applied thermoplastic material. From plumbing to chemical processing to electric applications, its unique combination of heat resistance, chemical resistance, good mechanical properties and cost - effective has made it an important material in a variety of industries. Despite some restrictions, under good manage and security, CPVC can present long – lasting and dependable performance in plenty of programs.