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![Chlorinated polyvinyl chloride Chemical formula: [C4H5Cl3]n](https://omo-oss-image.thefastimg.com/portal-saas/pg2026010910420518935/cms/image/45036a6b-0a02-4f04-bc18-f28db03de118.jpeg "Chlorinated polyvinyl chloride Chemical formula: [C4H5Cl3]n")
Chlorinated polyvinyl chloride Chemical formula: [C4H5Cl3]n
Chlorinated polyvinyl chloride (CPVC) is a further chlorinated and modified derivative of polyvinyl chloride (PVC), with a chlorine content typically ranging from 65% to 72% by volume. It appears as a white powder. Depending on its degree of polymerization, CPVC can be classified into high‑viscosity, medium‑viscosity, and low‑viscosity grades. The high‑viscosity grade exhibits superior oil resistance, resistance to acid and alkali corrosion, and elasticity, whereas the low‑viscosity grade is more readily soluble in vegetable oils. Compared with PVC, CPVC dissolves more easily in esters, ketones, aromatic hydrocarbons, and other organic solvents. This material is difficult to ignite, and products made from it do not deform when immersed in boiling water. In addition to inheriting many of PVC’s excellent properties, CPVC offers significantly improved corrosion resistance, heat resistance, solubility, flame retardancy, and mechanical strength. Consequently, CPVC is a high‑performance, next‑generation material widely used in construction, chemical processing, metallurgy, shipbuilding, electrical appliances, textiles, and other fields, with exceptionally broad application prospects.
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