Chlorinated Polyvinyl Chloride CPVC Resin

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Overview

Chlorinated Polyvinyl  Chloride  CPVC
Grade:Z-500,J-700
Equivalent brand:Temprite,Lucalor,Kaneka,Sekisui
CAS NO.:68648-82-8

产品介绍

Chlorinated Polyvinyl  Chloride  CPVC

Grade:Z-500,J-700

Equivalent brand:Temprite,Lucalor,Kaneka,Sekisui

CAS NO.:68648-82-8

 

Briefly Introduction:

 

   CPVC chlorinated method is aqueous suspension (slurry) chlorided. Because chlorinity increase, CPVC molecular not neat increases (crystallinity in the structure to drop, molecular chain's polar enhancement), thus causes its thermal deformation temperature rise. The CPVC product's application temperature may reach 110-130°C, compared the PVC enhance 30-40°C, simultaneously improved the PVC anti-chemical properties and corrosion resistance ability, can resist the anti-strong acid, the strong alkali, the salt, the fatty acid salt, the oxidant,the halogen and other chemical etching. Moreover, the CPVC tensile strength, the anti-bending strength compares PVC also to have the improvement. Compared with other polymer materials, CPVC has excellent resistance to aging, corrosion resistance and high flame resistance and so on.

Comparison of resin indexes

Index

PVC

CPVC

Density(g/cm3)

1.38—1.45

1.45—1.58

Vicat softening temperature(°C)

72—82

100—125

Tensile strength(MPa)

39—58

54—70

Bend strength(MPa)

105

120

Linear coefficient of thermalexpansion(K-1)

(6—7)×10-5

(7.5-8)×10-5

Extension at break

120

50

 Comparision between PVC and CPVC:

 Because CPVC has so superior high temperature, corrosion resistance and flame retardant performance that it has been widely used in making each different industry pipeline,hot and cold pipeline and fire pipeline. The advantages of CPVC pipe can be reflected in the following areas:

1. strong, thermostable:Because CPVC compares PP-R, PE-X to be firm.Compared with PP, the PE-X tube,under the similar pressure, CPVC may use a smaller caliber to achieve the same water flow, thereby saving material costs and installation time. Compares with other thermoplastic, CPVC has the remarkable mechanical property under the different temperature, is suitable for the bearing the situation, the application temperature may reach as high as 93°C, the life may amount to 50 years.

2.easy installation:The connection method are very similar with PVC. Most commonly used and simple connection method is resolver cementation.Other connection methods are threaded connection, flange connection and electrode connections.

3.non-corrosive oxygen permeability:CPVC have the anti-oxygen, therefore the oxygen seepage from the radiator will not bring metal corrosion.

4.good flame retardancy:CPVC limiting oxygen index is 60, therefore it will not burn in the air. It has the characteristics : misfires the flame decoction,not to increase the fire set,restrict flame spread,low smoke generation.

5. CPVC has excellent chemical resistance to non-polar strong acid and alkali. Commonly used to substitute the metal to process the corrosive material, such as the poor quality of water, acidic material alkaline matter and other peroxide solutions.

6.low thermal expansion:CPVC thermal-expansion coefficient is lower than other plastics. The tube expansion is very small when tube-pass heat, unlike other types of channels (such as PP-RRP) due to the higher temperature caused by heat expansion coefficient that could cause snake bending,the existence safe hidden danger and eyesores.

 

Specification and technical indexes

 

No.

 

Item

Unit

Index

J-700

Z-500

1

30-mesh screening rate

%

≥99

≥99

2

volatility

%

≤0.40

≤0.40

3

chlorine content

%

67~69

65~67

4

heat decomposition temperature

°C

≥120

≥120

5

K-Value


65

57

6

Apparent bulk density

g/cm

0.5-0.7

0.5-0.7

7

Vicat softening temp

°C

≥110

≥103

Note:All technical data can be produced as clients request.

 

Packing and Specification:

Paper bag with woven coating,net weight 25.0kg per bag.

 

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