Product name:
CPVC resin (Chlorinated Polyvinyl Chloride resin).
This product can be divided into extrusion type and injection type according to it's final usage.
CAS No.:
68648-82-8
Molecular structure:
-CHCI-CHCI-CH2-CHCI-
Production description:
CPVC is made by permutation reaction between special-purpose PVC resin and chloride ion to obtain corresponding CPVC resin. As chlorinity increases, CPVC get excellent properties in aging resistance, corrosion resistance, high flame resistance etc. compared with PVC.
Specification and technical indexes:
Items | CPVC J-700
extrusion type | CPVC Z-500
injection type |
| Content of chlorine (%) | ≥ 66-70 | ≥ 61-65 |
| Apperance | white powder | white powder |
| Volatilization (%) | ≤ 0.4 | ≤ 0.4 |
| Passing rate of 30 mesh sieve (%) | ≥ 99 | ≥ 99 |
| Thermal decompositon temperature (ºC) | 120 | 120 |
| Density (g/cm3) | 1.45-1.58 | 1.45-1.58 |
| Bulk density (g/cm3) | 0.5-0.7 | 0.5-0.7 |
Application:
1) Because of the above excellent properties, CPVC is widely used to make pipelines in the fields
of industry, firefighting, hot and cold water. It's advanges are listed below:
a.
Index | PVC | CPVC |
| Density (g/cm3) | 1.38-1.45 | 1.45-1.58 |
| Vicat softening temperature (ºC) | 72-82 | 120-160 |
| Tensile strength (Mpa) | 39-58 | 54-70 |
| Bend strength (Mpa) | 105 | 120 |
Coefficient of linear thermal
expansion (K-1) | (6-7)*10-5 | (7.5-8)*10-5 |
| Extension after breaking | 120 | 50 |
b) Strong tensile strength and thermostable.
c) easy installation.
d) non-corrosive oxygen permeability.
e) reducing the infiltration of additives.
f) avoid of impacting of chlorine in water.
g) good performance in flame retardancy.
h) excellent chemical resistance to non-polar strong acid and alkali.
i) lower thermal conductivity.
j) uneasy to breed bacteria.
k) lower thermal expansion.
l) long time shelflife.
2) Injection parts.
3) Rolling sheet.
4) Compound material.
5) Modifier for PVC fiber.
6) Foam material.
7) Impact modifier.