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Recyclable 135A CPE for Eco-Friendly, Durable Sustainable Packaging Solutions¹

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Product Description Product OverviewCPE is chlorinated polyethylene polymers produced by combining chlorine and polyethylene in an aqueous slurry.Its saturated, linear high molecular structure enables CPE with many superior physical and chemical performances. As a high-performance additive, it enhances PVC applications by improving impact resistance, weather durability, and plasticizer retention in flexible films. Its adaptable properties make it ideal for cable insulation, rubber elastomers, and flame-retardant polyolefin compounds, while also serving as a reliable material for protective wire jacketing. CPE's multifunctional capabilities support diverse industrial solutions, offering manufacturers a practical balance of performance and process efficiency. Product Parameters ITEMHT135AHT6000HT3135HT3610HT2135HT7030Heat of Fusion(J/gs)22222.51Chlorine Content(%)36±135±135±135±135±130±1Shore A hardness606565607570Tensile Strength(MPa)8888.569Elongation at Break(%)700600600600600600Mooney Viscosity(ML 121oC 1+4)-----70~80Volatile Matter(%)0.30.30.30.30.40.3Ash Content4.54.54.54.5-4.5Main ApplicationsUsed as PVC impact modifier ,ABS products flame retardant and impactmodification,Modifying PE and other Plastics,soft products.Main propertiesHigh impact modification performance,high filling efficiency,excellent flameretardant property and good processing performance UsesI. Characteristics of CPE as an Impact ModifierCore FunctionsEnhances material toughness (impact resistance), especially for polar polymers like rigid PVC and ABS.Improves processing fluidity and reduces melt viscosity.Provides auxiliary benefits such as plasticization, flame retardancy, and weather resistance (higher chlorine content in certain grades enhances flame retardancy).ApplicationsPVC pipes/profiles (e.g., doors, windows, railings)Wire and cable sheathingInjection-molded/extruded products (e.g., automotive parts, industrial components)Blending with ABS, PE, and other polymersII. CPE Selection GuidelinesChlorine Content36-40% chlorine: Optimal for impact modification (e.g., CPE 135A/B), suitable for rigid PVC.>40% chlorine: Higher flame retardancy but reduced toughness; balance based on formulation requirements.Crystallinity and Molecular WeightLow-crystallinity CPE (e.g., 135A) ensures better dispersion and impact performance.Moderate molecular weight (Mooney viscosity ML(1+4) 125°C: 50-80) balances processability and toughening effects.III. Typical Formulation Design1. Rigid PVC Products (Pipes/Profiles)ComponentRatio (phr)FunctionPVC resin100Base materialCPE5-12Impact modifier (8-10 phr recommended)Thermal stabilizer3-5Calcium-zinc/lead-basedLubricant1-2Internal/external lubricant blendFillerFiller5-20Calcium carbonate (cost control)Processing aid1-2ACR-type (improves melt strength) Note: Combining CPE with ACR enhances impact resistance and surface finish.2. ABS/CPE BlendsCPE dosage: 10-20%, significantly improves low-temperature impact resistance of ABS.Add compatibilizers (e.g., SBS) to enhance interfacial bonding.IV. Key Processing ParametersMixing ProcessHigh-speed mixer: Add PVC and stabilizer first, then CPE at 80°C, followed by lubricants and fillers to avoid premature agglomeration.Mixing temperature: 110-120°C (avoid localized overheating to prevent CPE degradation).Extrusion/Injection MoldingExtrusion temperature: 160-185°C (adjust based on equipment); excessive temperatures may degrade CPE.Screw speed: Medium-low (prevent shear-induced overheating).Mold cooling: Uniform cooling minimizes internal stress and improves toughness.V. Common Issues and SolutionsIssuePossible CauseSolutionInsufficient impact resistanceLow CPE dosage/poor dispersionIncrease CPE to 10-12 phr; optimize mixingRough surfaceInadequate lubrication or poor CPE compatibilityAdjust lubricants; add ACRDecomposition bubblesExcessive processing temperatureReduce temperature to <180°C; check stabilizerReduced mechanical strengthExcess CPE or high chlorine contentReduce CPE; use 36% Cl grades VI. PrecautionsStorageStore CPE in a cool, dry, and sealed environment (avoid moisture absorption).Shelf life: 1 year; test chlorine content if expired.SafetyAvoid processing temperatures >200°C to prevent HCl gas release.Ensure pH compatibility when using calcium carbonate fillers (avoid acidic fillers).Eco-friendly AlternativesFor halogen-free flame retardancy, combine with MBS or acrylate-based impact modifiers.VII. Performance Testing RecommendationsKey TestsNotched impact strength Melt flow rate Thermal stability Long-term Performance ValidationUV aging test (weather resistance)Low-temperature brittleness test (-10°C to -20°C)Product Description CPE is an engineered polymer derived through chlorination substitution reactions using high-density polyethylene (HDPE) as the base material. Based on molecular structure and functional applications, this versatile material is commercially categorized into two primary types:Resin-Type CPEDesigned for thermoplastic compoundingCompatible with various resins including:? PVC (enhanced impact/weather resistance)? Polyolefins (PE, PP)? Engineering plastics (PS, ABS)? Polyurethane (PU) systemsElastomer-Type CPE (CM)Functions as high-performance specialty rubberBlending capabilities with:? EPDM (ethylene-propylene-diene monomer)? Butyl rubber (IIR)? Nitrile rubber (NBR)? Chlorosulfonated polyethylene (CSM) Key Technical Advantages:Dual functionality as both standalone material and performance modifierCustomizable chlorine content (typically 34-44%) for targeted propertiesBroad processing compatibility across extrusion, injection molding, and calendaringThis material's unique adaptability enables cross-industry applications ranging from weather-resistant construction profiles to chemical-resistant rubber components. Detailed Photos Company ProfileWeifang Phoenix New Material Co., Ltd Weifang Phoenix New Material Co., Ltd is a high-tech chemical enterprise integrating research and development, production, sales and technical services. Headquartered in Weifang, Shandong Province. Its production facilities are ocated in Weifang Binhai Chemical Industry Park, a state-approved chemical industry park. Our mission is to be the leading sustainable "one-stop shop" chemical solutions company, providing customers with innovative, science-led, differentiated products and solutions. To this end, we provide a safe and healthy working environment for our employees and comply with all local, national and international regulations. FAQ1.Q:How's the quality?A:We are the source factory, quality is guaranteed.2.Q:When does it ship?A:We have standardized processes to ship as fast as possible.3.Q:How do you protect the after-sales?A:We keep samples of each batch and support returns and technical traceability in case of quality problems.

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