EN
SINOPEC SUNDY PVA 20-88 & PVA 088-35
Description
Overview
Its appearance is white or yellowish flake, granular or powdery solid. Good solubility, film forming, adhesion, compatibility, chemical resistance, heat resistance and color rendering.
Technical Data
Item |
Hydrolysis (mol%) |
Viscosity (mpa.s) |
Volatile (%≤) |
Ash (%≤) |
PH (Value) |
Purity (% ≥) |
088-35 |
87.0-89.0 |
29.0-34.0 |
≤5.0 |
≤0.3 |
5~7 |
≥93.5 |
Product Application
Adhesive
Polyvinyl alcohol in adhesives has become a multi-scenario bonding solution through the three-in-one mechanism of "polar adhesion-film enhancement-chemical modification". Its core value lies in safety and environmental protection, broad-spectrum bonding, and easy modification, and it is especially suitable for cellulose substrates.
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.
Paper Processing
In paper processing, polyvinyl alcohol becomes a multifunctional additive that improves the comprehensive performance of paper through the three-in-one mechanism of "surface film formation-pigment bonding-fiber reinforcement". It has great advantages in terms of strength, printability, water resistance and environmental protection, and is especially irreplaceable in high-end paper and specialty paper.
Warp Yarn Sizing
Polyvinyl alcohol is used as a sizing agent to enhance yarn strength and abrasion resistance, reduce yarn breakage rate during weaving, and improve textile quality.
Package
20 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.
