EN
Wanwei PVA 05-88(L) & PVA 088-05（BP-05 & PVA 205 & PVOH 5-88）
Description
Overview
The appearance of PVA is white flake, granular or powdery solid (low-alkali alcoholysis process) or white flocculent solid (high-alkali alcoholysis process). It is a kind of water-soluble polymer with wide application, and its performance is between plastic and rubber. It has unique strong adhesion, film flexibility, oil resistance, surface activity, gas barrier, wear resistance and so on.
Technical Data
Item |
Hydrolysis (mol%) |
Viscosity (mpa.s) |
Volatile (%≤) |
Ash (%≤) |
PH (Value) |
Purity (% ≥) |
05-88（L） |
85.0-90.0 |
4.5-6.5 |
≤7.0 |
≤0.7 |
5~7 |
≥93.5 |
Product Application
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.
Water-soluble Film
Polyvinyl alcohol is used to produce water-soluble films, which dissolve in water and are environmentally friendly.
High-density Sizing Material
Polyvinyl alcohol plays a core role in high-density sizing materials and has the characteristics of enhancing yarn strength and wear resistance, optimizing the balance between sizing liquid penetration and coating, stabilizing the process and reducing environmental dependence.
Papermaking
In the papermaking industry, polyvinyl alcohol has become a multifunctional additive for improving paper performance through the three-in-one mechanism of "fiber reinforcement-surface film formation-adhesion optimization". Its core value lies in its balance of strength, water resistance and printability, and it is safe, non-toxic and biodegradable.
Package
25 kg/bag.
Storage
Avoid generation or accumulation of dusts. Take precautionary measures against static discharges, earth/ground all equipment. Avoid contact with heated or molten product. Do not breathe dust, fumes or vapors from heated product. Use local exhaust ventilation in processing area. Take precautionary measures against direct sunlight and rain drenching during transport. Keep transportation vehicle clean. Avoid packaging destruction and keep away from impurity.
