EN
SINOPEC PVA 20-99 & PVA 100-35
Description
Overview
PVA is a linear polymer with secondary hydroxyl groups. It has good solubility, thermal stability, chemical resistance, storage stability and film formation.
Technical Data
Item |
Hydrolysis (mol%) |
Viscosity (mpa.s) |
Volatile (%≤) |
Ash (%≤) |
PH (Value) |
Purity (% ≥) |
100-35 |
99.0-100.0 |
35.0-43.0 |
≤5.0 |
≤0.7 |
5~7 |
≥93.5 |
Product Application
Processing and Finishing Agent
Polyvinyl alcohol has become the core component of textile finishing agents due to its strong film-forming properties, interfacial adhesion and environmental adaptability. Its role is not limited to improving physical properties (crispness, wear resistance) but also giving fabrics functional properties through chemical modification (acetalization).
Paper Adhesion
Polyvinyl alcohol achieves efficient, environmentally friendly and multifunctional bonding effects in paper bonding through its unique molecular structure (rich in hydroxyl groups) and physical and chemical properties.
Coating
Polyvinyl alcohol has become a "performance bridge" in the coating system through the four mechanisms of film-forming reinforcement, interface bonding, construction optimization and functional modification. Its core value lies in the balance of rigidity and flexibility (improving the crack resistance and adhesion of the coating), water-air regulation (considering both waterproof and breathable requirements), and environmental protection and economy (non-toxic, biodegradable, and reducing the amount of emulsion). The selection needs to be combined with the application scenario.
Sponge
Polyvinyl alcohol, through its hydrophilic groups and cross-linking properties, builds the core functions of the sponge, namely high-water absorption, biosafety and environmental friendliness.
Package
25 kg/bag.
Storage
Store in a dry, well-ventilated room at room temperature 5-30℃. Do not approach heat sources, prevent humidity, avoid sun exposure. It is forbidden to store together with volatile chemicals to prevent adsorption deterioration.
