For manufacturers aiming to optimize their PVC and plastic formulations, a thorough understanding of the technical specifications of key additives is crucial. Chlorinated Polyethylene (CPE) 135A is one such additive, widely recognized for its impact modification capabilities. Delving into its technical data allows for precise formulation adjustments and ensures the desired end-product performance. NINGBO INNO PHARMCHEM CO.,LTD can provide guidance on selecting the appropriate grade and understanding its technical nuances.

At the forefront of CPE 135A's technical profile is its chlorine content, typically specified at 35±2%. This specific chlorine percentage is critical as it dictates the balance between compatibility with PVC, impact modification efficiency, and flexibility. A higher chlorine content generally increases compatibility but can affect other properties, while a lower content might reduce impact strength. Achieving this precise range is what makes CPE 135A effective in enhancing the toughness of rigid PVC products.

Another vital parameter is the heat stable time, usually measured at 165°C. A good heat stable time, often reported as ≥8 minutes, indicates the material's ability to withstand processing temperatures without significant degradation. This is crucial for maintaining the integrity of the CPE during extrusion or molding processes, preventing the loss of its beneficial properties. Similarly, the volatile matter content, typically kept below 0.5%, is an indicator of the material's purity and processing stability. Low volatile content minimizes issues like foaming or voids in the final product.

The mechanical properties are also key indicators of CPE 135A's performance. Tensile strength, often quoted as ≥8.0 MPa, and Shore Hardness (A) values, typically ≤65%, provide insights into the material's strength and flexibility. These figures are important when considering how CPE will affect the overall mechanical profile of the final PVC article. The elongation at break, which can be quite high for CPE 135A (often ≥600%), further highlights its toughening capabilities, allowing materials to deform significantly before fracturing.

Furthermore, technical data sheets often include parameters like whiteness (≥85%), residue on sieve (0.9mm ≤2.0%), and impurity particles (≤30 per 100g). These specifications relate to the product's appearance and purity, ensuring it doesn't negatively affect the color or introduce defects into the final plastic product. Understanding how to integrate chlorinated polyethylene CPE 135A effectively into PVC formulations requires a careful review of these specifications. By matching the technical requirements of the application with the detailed data of CPE 135A, manufacturers can achieve optimal results, such as improved impact resistance in PVC pipes or enhanced weatherability in window profiles. Consulting with suppliers for specific product data sheets is always recommended to ensure the best possible outcomes when using this critical plastic additive.