Chlorinated polyvinyl chloride
Chlorinated polyvinyl chloride (CPVC) is a thermoplastic produced by chlorination of polyvinyl chloride (PVC) resin. CPVC is significantly more flexible than PVC, and can also withstand higher temperatures. Uses include hot and cold water delivery pipes and industrial liquid handling. CPVC, like PVC, is deemed safe for the transport and use of potable water.
| Names | |
|---|---|
| Other names
Polychloroethylene, Chlorinated PVC | |
| Identifiers | |
| Abbreviations | CPVC, PVC-C |
| ChemSpider |
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| ECHA InfoCard | 100.122.975 |
CompTox Dashboard (EPA) |
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| Properties | |
| (C9H11Cl7)n, for 67% Cl polymer | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
| Chlorinated polyvinyl chloride | |
|---|---|
| Material type | Thermoplastic |
| Physical properties | |
| Density (ρ) | 1.56 g/cm3 |
| Water absorption—Equilibrium (ASTM) | 0.04–0.40 |
| Mechanical properties | |
| Young's modulus (E) | 2.9–3.4 GPa |
| Tensile strength (σt) | 50–80 MPa |
| Elongation (ε) at break | 20–40% |
| Notch test | 2–5 kJ/m2 |
| Thermal properties | |
| Melting temperature (Tm) | 150 °C |
| Glass transition temperature (Tg) | 106–115 °C |
| Vicat softening point—50 N (Vicat B) | 106–115 °C |
| Thermal conductivity (k) | 0.16 W/(m·K) |
| Linear thermal expansion coefficient (α) | 8×10−5 K−1 |
| Specific heat capacity (c) | 0.9 kJ/(kg·K) |
| Economics | |
| Price |
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