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PVA | Polyvinyl Acetal (I)

Executive standard: Q/TYG001-2014
CAS NO. 63148-65-2

Executive standard: Q/TYG001-2014

CAS RN: 63148-65-2

1. Physical and chemical properties:

1.1 Brief introduction:Polyvinyl acetal (I) iswhite solid particle, non-toxic, non-harmful. It has many good properties, such as, good anti-weather ability, high transparency, good insulation, good film-formation ability, anti-impact at low temperature, cold weather resistance, water proofing and aging resistance.

1.2 Structure formula:


2. Technical indexes:

Item Index
Type TB-03TS
Appearance White powder or particle
Particle size (through 20 mesh), % (m/m) 100
Vinyl alcohol acetal, % (m/m) -
Volatile matter, % (m/m) ≤3.00
Viscosity (20℃±0.2℃,10% ethanol solution), s 3-4”
Viscosity (20℃±0.2℃,10% ethanol solution), s 25-40
Transparency, % 430nm ≥80
660nm ≥90
Free acid (in HCl), % (m/m) ≤0.05
Hydroxyl value, %m/m 15-18

3. Application: Polyvinyl acetal (I) has good film-formation ability and elasticity. Its film has many advantages, such as, high transparency, high toughness, good acid-resistance, good oil-resistance, etc. It can bond with glass, metal and ceramics well. In addition, it can disperse well into ink, pigment and dyestuff.

4. Package: Woven bag with inner plastic bag, 12.5 kg net each.

5. Storage: Stored at cool and ventilate place. Sealed preservation. Shelf life: 12 months. It is still available if he retest results of the properties are qualified after expired date.

6. Transportation: Avoid rain, moist and sun-baked. Don't mix with strong oxidizer.


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