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    2019-06-06

    一.Brief introduction
    CPE is the abbreviation of (chlorinated polyethylene), which is the product of high density polyethylene (HDPE) after chlorination, and its appearance is white and fine particles.

    二、Second, the performance of CPE

     1, excellent aging resistance, can be used in harsh weather and harsh environment, ozone resistance. 

    2, excellent flammability, no spontaneous combustion.

     3, excellent low temperature toughness, can maintain flexibility at-20 ℃, suitable for UPVC products impact modifier.

     4. Excellent chemical resistance, inertia to most chemicals, resistance to all kinds of acid-base corrosion. 

    5, good processing performance, easy to process and molding. 6, excellent use safety, will not have a negative impact on the human body and the surrounding environment. 7, excellent stability.

    三、Qualitative index

    index

    CPE225A

    CPE130A

    CPE135A

    CPE140A

    CPE135C

    Mass fraction of chlorine,%

    25±2

    30±2

    35±2

    40±2

    35±2

    熔融焓,J/g

    <=5.0

    <=2.0

    <=2.0

    <=2.0

    <=5.0

    Melt, J/ g

    <=0.4

    <=0.4

    <=0.4

    <=0.4

    <=0.4

    Screen residue (0.9mm screen hole),%

    <=2.0

    <=2.0

    <=2.0

    <=2.0

    <=2.0

    Number of impurity particles, per 100g

    <=50

    <=50

    <=50

    <=50

    <=50

    Shore hardness, shoreA

    <=80

    <=70

    <=65

    <=70

    <=70

    Mooney viscosity, Ml (1 4)

    ?? -

    ??? -

    -

    -

    -

    Tensile strength, MPa

    ?? >=8.0

    ?? >=8.0

    ?>=8.0

    ?>=8.0

    ?>=8.0

    Mass fraction of ash,%

    <=4.5

    <=4.5

    <=4.5

    <=4.5

    <=4.5

    index

    CM225B

    CM130B

    CM135B1

    CM135B2

    CM135B3

    CM140B

    Mass fraction of chlorine,%

    25±2

    30±2

    35±2

    35±2

    35±2
    40±2

    Melt, J/ g

    <=5.0

    <=2.0

    <=2.0

    <=2.0

    <=2.0

    <=2.0

    Mass fraction of volatiles,%

    <=0.4

    <=0.4

    <=0.4

    <=0.4

    <=0.4

    <=0.4

    Screen residue (0.9mm screen hole)%

    -

    -

    -

    -

    -

    _

    Number of impurity particles, per 100g

    -

    -

    -

    -

    -

    -

    Shore hardness, shoreA

    <=75

    <=70

    <=60

    <=60

    <=60

    <=70

    Mooney viscosity, Ml (1 4)

    ?<=140

    <=130??

    50-60

    60-70

    70-80

    <=120

    Tensile strength, MPa

    ?? >=6.0

    ?? >=6.0

    ? >=6.0

    ? >=6.0

    ? >=6.0

    ?>=6.0

    Mass fraction of ash,%

    <=4.5

    <=4.5

    <=4.5

    <=4.5

    <=4.5

    <=4.5

     

    Note: CM135B and CM140B can produce different Mooney viscosity products according to customer requirements.

          4. CPE, the main purpose of CPE, has the dual properties of plastics and rubber, and has good compatibility with other plastics and rubbers. therefore, CPE is mostly mixed with rubber or plastics except a few of them are used as main materials. When CPE is combined with plastics, it is mainly used as modifier, the most important use of which is to be used as impact modifier for rigid polyvinyl chloride (UPVC) products, improve the impact resistance and low temperature properties of UPVC, and can be used to manufacture UPVC door and window profiles, pipes and injection products. When used with rubber, CPE mainly improves the flame retardancy, insulation and aging resistance of rubber. In addition, CPE135C can be used as modifier for flame retardant ABS resin and impact modifier for injection of PVC,PC,PE.


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