Polyvinylidene chloride (PVDC)

Description

1. Product Overview
   Polyvinylidene chloride (PVDC) is a high-performance thermoplastic polymer derived from vinylidene chloride monomers, widely recognized for its exceptional barrier properties against moisture, oxygen, and aromas. It is primarily used in advanced packaging films, coatings, and industrial barrier applications where product preservation and extended shelf life are critical. PVDC delivers superior performance compared to conventional polymers due to its dense molecular structure and outstanding chemical resistance. Its strategic importance lies in its role as a premium barrier material supporting food safety, pharmaceutical protection, and industrial packaging efficiency in global supply chains.
2. Key Specifications & Technical Characteristics

• Chemical composition: Polyvinylidene chloride homopolymer (PVDC)
• Purity/Grade: Industrial/Packaging grade ≥ 99% polymer content
• Physical form: White to off-white powder or resin granules
• Density: ~1.6–1.8 g/cm³
• Melting point: ~160–180°C (dependent on copolymer formulation)
• Solubility: Insoluble in water; soluble in selected organic solvents
• Packaging options: 25 kg bags, 500–1000 kg jumbo bags, bulk container lining available
• Shelf life: 24 months under cool, dry, sealed storage conditions

3. Core Industrial Applications
   PVDC is extensively used in the food packaging industry for high-barrier films that preserve freshness, extend shelf life, and prevent oxidation. In pharmaceuticals, it is applied as a coating layer for blister packs and protective films to ensure drug stability and moisture resistance. It is also used in industrial coatings, adhesives, and multilayer packaging systems where barrier performance is critical. Compared to conventional polyethylene or polypropylene, PVDC offers significantly lower gas permeability, making it a preferred material for premium preservation and high-value product protection.
4. Competitive Advantages

• Exceptional oxygen and moisture barrier performance compared to standard polymers
• High consistency in molecular structure ensuring uniform film quality
• Reliable bulk supply chain with scalable production capacity
• Cost efficiency through reduced product spoilage and extended shelf life of packaged goods
• Compatibility with multilayer film systems enhancing packaging versatility
• Strong technical documentation and formulation support for industrial converters
• Established sustainability advantage through reduced food and product waste

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): BULK 20 MT
• Loading Capacity: 20–25 MT per 20 ft container (depending on packaging configuration)