At NINGBO INNO PHARMCHEM CO.,LTD., we pride ourselves on understanding the deep science behind the materials we supply. Chlorinated Polyethylene (CPE) 135A is a prime example of a material engineered for superior performance. This article explores the technical properties of CPE 135A and illuminates why it is an indispensable additive for enhancing Polyvinyl Chloride (PVC) products.

Understanding the Molecular Structure and Chlorine Content

CPE 135A is a saturated thermoplastic elastomer derived from the chlorination of high-density polyethylene (HDPE). The process involves substituting hydrogen atoms with chlorine atoms, typically resulting in a chlorine content of around 35-36%. This specific chlorine content is critical as it dictates the material's compatibility with PVC and its overall performance characteristics. Lower chlorine content might result in poor compatibility, while excessively high content can lead to plasticizing effects rather than impact modification. The irregular structure of the CPE molecule plays a key role in its ability to dissipate energy, thus improving the impact resistance of PVC. For manufacturers looking to buy CPE 135A, understanding these technical specifications is paramount.

Key Technical Properties and Their Impact

The effectiveness of CPE 135A as a PVC modifier stems from its unique set of properties:

  • Excellent Elongation at Break: With an elongation at break often exceeding 800%, CPE 135A provides flexibility and prevents premature failure in PVC products under stress. This contributes significantly to enhancing PVC toughness.
  • Good Powder Fluidity: The fine powder form ensures excellent dispersion within the PVC matrix, leading to uniform properties and improved processing.
  • High Tensile Strength: While providing flexibility, CPE 135A also contributes to the tensile strength of the final PVC product.
  • Outstanding Weather Resistance: CPE 135A offers superior resistance to UV light, ozone, and general weathering compared to many other PVC additives. This makes it a preferred choice when seeking a weather resistant PVC additive.
  • Flame Retardancy: The presence of chlorine contributes to the material's inherent flame retardant properties, an essential attribute for many construction and electrical applications. Its role as a flame retardant PVC additive is highly valued.
  • Chemical Resistance: CPE 135A is resistant to a wide range of chemicals, oils, and acids, making it suitable for pipes, hoses, and protective coatings. This highlights its value as a chemical resistant PVC modifier.
  • Thermal Stability: It possesses good thermal stability, resisting degradation at elevated processing temperatures.

Optimizing PVC Formulations with CPE 135A

When incorporating CPE 135A, manufacturers can expect several processing advantages. It promotes better plasticization and extrusion flow, leading to smoother surfaces and more efficient production cycles. This directly addresses the challenge of improving PVC processing fluidity. The compatibility of CPE 135A with PVC, along with other polymers like PE, PS, and various rubbers, allows for its use in diverse formulations. The consistent quality and availability of Chlorinated Polyethylene 135A for PVC applications are critical for reliable manufacturing. For those inquiring about the price of CPE 135A, it represents a cost-effective investment for significant performance gains.

In essence, CPE 135A is more than just an additive; it's a performance enhancer that unlocks new possibilities for PVC products. Its well-defined properties make it a cornerstone for manufacturers aiming to produce durable, high-performance, and safe materials. NINGBO INNO PHARMCHEM CO.,LTD. is committed to providing this essential material and the technical expertise to ensure its optimal application in your PVC manufacturing processes.