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Polyvinyl alcohol ( CHINA PVA )
Polyvinyl alcohol PVA Performace
Polyvinyl alcohol (abbreviated as PVA) also can be called PVOH. It is a kind of heavy polymer, produced by polymerization and alcoholysis of vinyl acetate. PVA is white or light yellow floccus, granular or powdery in appearance. Its molecular formula is［CH2CHOH］n，and the molecular formula for some of the PVA is -［CH2CHOH］n-［CH2CHOOCCH3］m-. PVA is non-toxic, insipid and harmless. It is water-soluble and the solvent provide good viscosity and film building.
Specifications
Polyvinyl Alcohol/PVA
1. pva polyvinyl
alcohol
2.CAS No.:9002-89-5
3.Formula:[C2H4O]n
4.color:white crystal
& powder
Polyvinyl Alcohol/PVA
PVA |
Viscosity (mp.s) |
Alcoholysis Degree |
Volatile |
Sodium Acetate (%) |
Ash (%) |
PH Value |
PVA-2688 |
65.0-75.0 |
86.0-90.0 |
≤7.0 |
≤2.5 |
≤0.5 |
5-7 |
PVA-2699 |
60-75 |
98.0-100 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-2499 |
48-60 |
98.0-100 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-2488 |
40-55 |
86.0-90.0 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-2099 |
32-40 |
98.0-100 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-2088 |
28-40 |
86.0-90.0 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-1799 |
22-30 |
98.0-100 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-1798 |
21-31 |
97.0-99.0 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-1792 |
20-30 |
90.0-94.0 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-1788 |
20-26 |
86.0-90.0 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-1599 |
18-22 |
99-100 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-1492 |
14-18 |
90.0-94.0 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-1399 |
13-18 |
98.0-99.5 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-1498 |
12-17 |
98.0-99.8 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-1388 |
12-14 |
87.0-89.0 |
≤5 |
≤2.5 |
≤0.5 |
5-7 |
PVA-1092 |
8-12 |
90.0-94.0 |
≤6 |
≤2.5 |
≤0.5 |
5-7 |
PVA-0599 |
5-6 |
98.0-100 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-0588 |
5-6 |
86.0-90.0 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-0499 |
4-5 |
98.0-100 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-0498 |
4-5 |
98.0-99.0 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-0488 |
4-5 |
86.0-90.0 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
Polyvinyl alcohol main use:
After PVA being treated by washing, wet-spinning, heating treatment, water-colling, oiling, it can obtain the fiber with good mechanical property.
PVA can be widely used for warp sizing and finishing .
Featured as anti-corrosion and anti-deterioration, stable quality etc, PVA aqueous solution has very strong adhesion force to cellulose (paper, cloth, wood).
PVA is widely used as architectural coating, such as for internal walls and floor.
Acetate, polyvinyl butyral and so on can be made by PVA reaction with formaldehyde, acetaldehyde, butyraldehyde.
PVA is also widely used for biodegradable film, protective colloid and soil amendments, seed and pharmaceutical coating agent, inorganic and electronic product adhesives, water-soluble film, cosmetic additive, temporary protective film and so on.
Safety tips: PVA has no significant toxicity or special hazard, but the operator should avoid inhaling a large number of its dust, and contact with the skin or the eye directly as the the chemical may irritate, or cause you unwell such as difficult breathing and so on.
Do not discard anywhere, otherwise the dust will fly about and cause air pollution
Keep off fire, or it will burn.
Storage: It’s packed in the braided polypropylene bags lined with a polyethylene film.The net weight of each bag is 25kg,50kg ..And it could be packed according to the customers’ requirements. It should be stored in ventilation in cool, dry place, away from fire. Transportation should be gentle and should prevent damage to the packing,Any special requirement could be talked with us .
Business Terms:
(1) Delivery time: Within 14days
(2) Delivery port: Tianjin/Qingdao Seaport
(3) Payment Terms: T/T, L/C or other terms for negotiating
(4) Container loading: 1x20'full container load 12.96 metric ton
(5) Package: Currently is 25kg/bag without pallets loaded into one container
(6) Quanlity assurance: SGS inspections or test report can be offered
(7) Storage: Should be stored in dry conditions in closed bags
(8) Shelf life is 24 months
