Overview
Chlorinated Polyvinyl Chloride Acetate (CPVCA) resin is a chemically modified plastic derived from polyvinyl chloride (PVC) and vinyl acetate. The chlorination process enhances its solubility, adhesion, and resistance to chemicals and UV radiation, making it a versatile material for industrial applications. CPVCA resins are commonly used in formulations requiring durability and flexibility, such as coatings for metal surfaces or adhesives for plastics. Their modification allows for tailored properties, including improved compatibility with other polymers and solvents.
Physical and Chemical Properties
CPVCA resin exhibits a balance of rigidity and flexibility, with a density range of 1.35-1.45 g/cm³. Its solubility in organic solvents like acetone and toluene makes it ideal for solution-based applications. The resin's thermal stability allows it to withstand temperatures up to 200°C before decomposition. Key chemical properties include resistance to acids, alkalis, and oils, which is critical for protective coatings. The degree of chlorination (typically 60-70%) directly impacts its flame retardancy and compatibility with pigments or additives.
Main Applications
The primary use of CPVCA resin is in industrial coatings, particularly for marine, automotive, and chemical storage tanks, where corrosion resistance is essential. It also serves as a binder in inks for packaging due to its adhesion to diverse substrates. In adhesives, CPVCA provides strong bonding for PVC pipes and synthetic leather. Specialty grades are employed in magnetic tapes and flexible films, leveraging its weatherability and mechanical strength.
Safety and Storage
CPVCA resin is generally stable under normal conditions but requires careful handling to avoid dust inhalation. Use gloves and masks during processing. Store in sealed containers at temperatures below 30°C to prevent clumping or moisture absorption. When heated above 250°C, it may release hydrogen chloride gas, necessitating adequate ventilation. Dispose of waste according to local regulations for halogenated polymers.
B2B Procurement Guide
Buyers should prioritize suppliers offering technical datasheets with detailed parameters like chlorine content (typically 60-70%) and solution viscosity. Bulk orders (1+ metric tons) often qualify for discounts, but confirm lead times due to potential customization needs. For coating applications, request samples to test compatibility with solvents and additives. Verify compliance with industry standards such as ASTM or ISO for consistency. Prices fluctuate with raw material (PVC and acetic acid) market trends.
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