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The difference between PVC and CPVC

- Feb 05, 2018 -

PVC AND CPVC:


Comparison of PVC and CPVC


1, The content of the chlorine is different:

    PVC (polyvinyl chloride) chlorine content: 56%

    CPVC (chlorinated polyvinyl chloride) Chlorine content: 67%


2, The Vicat temperature (heat distortion temperature) is different: 

    testability, Vicat temperature is higher the better performance

    Vicat temperature of general CPVC and PVC:

        PVC: Vicat temperature of 71-75 ℃

        CPVC: Vicat temperature is 100-125 ° C

  

        Tube Vicat temperature 110 ℃ JC - 701 Raw material CPVC Vicat temperature is 124 ℃ -128 ℃

        Tube Vicat temperature 103 ℃ ZS - 601 Raw material CPVC Vicat temperature 121 ℃ -125 ℃


Tube processing fluidity (rheology) requirements higher than the tube, by adding additives to adjust the Vicat temperature is lower than the average tube.


3, Falling hammer test confirm that the strength is higher than ordinary PVC 2 times.


4, Anti-hydraulic test is also higher than ordinary PVC.


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