Anhui Liwei Chemical officially launches a full range of PVA (Polyvinyl Alcohol) resin products, covering fully alcoholyzed and partially alcoholyzed mainstream grades in powder and pellet forms. This move completes the upstream and downstream industrial layout of vinyl acetate polymers, realizing full-series supply of PVAc, VAE, EVA, EVOH, PVB and PVA. Known as a versatile fine chemical auxiliary, PVA is a water-soluble, high film-forming and biodegradable polymer. With abundant hydroxyl groups in its molecular structure, it delivers excellent adhesion, dispersion, colloidal protection and weather resistance, featuring non-toxic and eco-friendly properties that meet high-standard production requirements across industries.
Liwei’s newly launched PVA products feature stable batch performance, uniform viscosity and low impurity content, accurately adapting to diverse downstream processes. Partially alcoholyzed PVA boasts superior permeability and fluidity, ideal for textile sizing, paper surface sizing and protective colloids for waterborne coatings, effectively improving fabric smoothness, paper strength and coating system stability. Fully alcoholyzed PVA forms dense, high-tensile and water-resistant films, widely applied in high-end water-soluble packaging films, laundry capsule films, agricultural water-retention mulch films, and thickening & strengthening additives for construction dry mortar.
Furthermore, PVA serves as the core precursor material for PVB resin synthesis. Leveraging self-produced PVA raw materials, Liwei realizes closed-loop integrated production from PVA to PVB, strictly controlling the transparency, adhesion and impact resistance of PVB interlayer films from the source, and significantly reducing procurement and quality control costs for terminal glass processing enterprises. High-purity cosmetic and medical-grade PVA can be used for skincare moisturizing additives, medical wound dressings and eye drop additives, complying with FDA and EU food contact safety standards and possessing huge potential in global high-end markets.
Against the global low-carbon and eco-friendly trend, fully biodegradable PVA serves as an effective alternative to traditional non-degradable plastics, fully complying with global plastic restriction policies. All Liwei PVA products have completed EU REACH registration and can be exported in bulk to Southeast Asia, Europe, America and other regions, providing global clients with cost-effective, one-stop vinyl acetate polymer material solutions.
