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CPE135B pvc impact modifier

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CPE135B pvc impact modifier

CPE135B, or chlorinated polyethylene, serves as a crucial impact modifier in the formulation of polyvinyl chloride (PVC). This elastomeric material is adept at enhancing the toughness and impact resistance of PVC compounds, making it particularly valuable in various applications where durability is paramount. CPE135B achieves this by improving the polymer matrix’s ductility and flexibility, effectively preventing brittleness that can result from PVC’s inherent rigidity. The chlorination process introduces chlorine atoms into the polyethylene backbone, imparting unique properties that enhance compatibility with PVC and promote better dispersion within the polymer blend.

This impact modifier finds extensive use in the production of PVC-based products such as pipes, fittings, cables, and profiles. Its ability to enhance impact strength, weather resistance, and overall performance makes CPE135B a preferred choice in industries ranging from construction to automotive, contributing significantly to the longevity and reliability of PVC-based materials in diverse applications.

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CPE135B pvc impact modifier

Functions and Characteristics

Product characteristics:

  1. Plasticizing Temperature: The material has a low plasticizing temperature, contributing to its ease of processing.
  2. Mooney Viscosity: CPE135B has a Mooney viscosity ranging from 50 to 100 at 125℃, indicating its processability.
  3. Chlorine Content: Contains 35±2% chlorine, endowing the material with flame-retardant properties.
  4. Whiteness: Whiteness level is ≥85%, indicating high purity.
  5. Melting Enthalpy: The material exhibits a low melting enthalpy (≤2.0 J/g), allowing for phase transitions with minimal heat input.
  6. Volatile Matter Content: The volatile matter content is ≤0.5%, emphasizing purity.
  7. Residue on Sieve: The residue on a 0.9mm sieve is ≤2.0%, indicating particle size control.
  8. Impurity Particle Count: ≤30 particles per 100g, highlighting a low level of impurities.
Product Grades CPE135B
(Chlorine),                                                                % 35±2
(Whiteness),                                                             ≥ 85
(Melting enthalpy), J/g                                            ≤ 2.0
(Volatile matter content), %                                     ≤ 0.5
(Residue on sieve)(0.9mm)                                  ≤ 2.0
(Impurity particle No/100g)                                    ≤ 30
(Number of spots) (150*150)                                  ≤ 80
(Tensile strength), MPa                                            ≥ 8.0
(Shore hardness), A                                                 ≤ 60
 (Mooney viscosity), ML(1+4)125℃ 50-100
(The thermal stability time), 165℃                          ≥ 8.0

Major Applications

Pipe and Fittings:

Its resistance to perturbation and excellent processing properties make it ideal for manufacturing pipes and fittings in various industries, including construction.

Molded Products:

The material's low plasticizing temperature and versatile processing characteristics make it well-suited for molding applications, including the production of various molded products in different shapes and sizes.


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