PVA 2488

PVA 2488 Specification

Usage
Mainly used in textile sizing, adhesives, paper industry, and construction

Density
1.19 Gram per cubic centimeter(g/cm3)

Ph Level
5.0 - 7.0 (4% Solution at 25C)

Storage Instructions
Store in a cool, dry place in tightly closed container

CAS No
9002-89-5

Purity
>98%

Molecular Weight
~67000 g/mol

Melting Point
~230C (decomposes)

Molecular Formula
(C2H4O)n

Physical State
Solid Powder

Size
Customizable

Flash Point
79.44C

Shelf Life
2 Years

Packaging Type
25 kg Bag

Grade
Industrial Grade

Type
Polyvinyl Alcohol

Application
Textile, Adhesive, Paper, Construction, Emulsion, Ceramics

Appearance
White Powder

Purity(%)
>98%

Odor
Odorless

Hazard Class
Non-hazardous

Refractive Index
1.49

Hydrolysis Degree
86.0 - 89.0%

Packing
25 kg woven bag with inner liner

Solubility
Easily soluble in water

Viscosity (4% aqueous solution, 20C)
44-50 mPas

Bulk Density
0.3-0.5 g/cm3

Form
Powder/Granule

About PVA 2488

PVA 2488 is raw materials of vinylon fibers,construction,paint additives, mainly used in textile,fabric finishing agents PVA 24-88 is mainly used as a warp dressing agent; textile finishing agent and the raw material of vinylon in textile industry; used a s 107/801 glue, an additive of cement and mortar, inner and outer wall paints, and mounding board binder in construction upholstery industry; used as a well-fixing agent in petroleum exploitation; used in cosmetic, printing, medicine and electronic, also can be used in chemical industry, paper industry and agriculture, etc.

Polyvinyl alcohol is high polymer with excellent characters to dissolve easily in water but not to dissolve in common organic solvent and organic acids, and with excellent film-forming property,oil resistant, chemical-resistant. It can react with formaldehydes to form polyvinyl acetal.

Versatile Industrial Applications

PVA 2488 is suitable for multiple industries, including textiles, adhesives, paper, construction, emulsions, and ceramics. Its water solubility, high purity, and stable physical properties ensure consistent performance and cost-effectiveness across a broad range of manufacturing processes.

Safe Handling and Storage

This polyvinyl alcohol grade is classified as non-hazardous and odorless, which makes it safer to handle and transport. For best product integrity, store PVA 2488 in a cool, dry area within tightly closed containers, ensuring a shelf life of up to two years.

Quality and Packaging Assurance

Each batch of PVA 2488 is packed in strong 25 kg woven bags lined internally to safeguard against contamination and moisture. The grade's high purity and standardized specifications guarantee uniformity and reliability in industrial operations.

FAQ's of PVA 2488:

Q: How is PVA 2488 typically used in industrial applications?

A: PVA 2488 is predominantly applied as a binder, thickener, or film-forming agent in industries such as textile sizing, adhesives, paper manufacturing, construction, and ceramics. Its excellent water solubility and consistency make it ideal for creating strong, stable films and coatings.

Q: What are the main benefits of using PVA 2488?

A: The primary advantages of PVA 2488 include high purity, ease of dissolution in water, strong adhesive properties, and a non-hazardous nature. These features support efficient processing, improved end-product quality, and enhanced workplace safety.

Q: When is it necessary to use PVA 2488 over other polyvinyl alcohol grades?

A: PVA 2488 is preferred when a balance between moderate viscosity (44-50 mPas) and intermediate hydrolysis (86.0-89.0%) is required, especially in applications demanding good film strength, adhesion, and water solubility, such as textile size and construction adhesives.

Q: Where should PVA 2488 be stored to maintain quality?

A: PVA 2488 should be stored in a cool, dry location inside tightly sealed containers or the original 25 kg woven bags with an inner liner to avoid moisture absorption and maintain product integrity throughout its two-year shelf life.

Q: What is the process for dissolving PVA 2488 in water for industrial use?

A: To dissolve PVA 2488, slowly add the powder or granules to water at room temperature (20-25C) under constant stirring. For a 4% solution, the ideal conditions will ensure complete dissolution, resulting in a clear, uniform solution suitable for direct industrial application.

Q: How does the hydrolysis degree of PVA 2488 affect its performance?

A: The hydrolysis degree (86.0-89.0%) determines the balance between water solubility and bonding strength. PVA 2488's intermediate hydrolysis ensures strong adhesion yet remains easily water-soluble, making it versatile for many end-uses, including adhesives and coatings.