Factory Supply Polyvinyl Alcohol / 0588/2088/-Wanwei Used for Adhesive PVA

• Customization: Available
• Application: Automobile, Construction, Fiber & Garment, Packing, Woodworking
• Bonding Function: High Temperature Resistant Adhesive
• Model NO.: YD
• Color: White
• Composition: Organic Material
• Morphology: Water-Soluble
• Transport Package: 25kg/Bag
• Specification: 98%
• Origin: China
• HS Code: 29053000
• Production Capacity: 50000000

Product Description

 

Product Description

Polyvinyl alcohol (PVA)

         Polyvinyl alcohol (PVA) is a water-soluble polymer with a large number of side - hydroxyl groups in the molecular chain, so it is also regarded as a macromolecular polyol. PVA is made of vinyl acetate (VAc) monomer after polymerization and alcoholysis, according to the different raw materials, PVA preparation method can be divided into two kinds, one is to prepare vinyl acetate as raw material; The other is acetylene (calcim carbide acetylene or natural gas acetylene) as the raw material to prepare vinyl acetate, and finally the prepared vinyl acetate is prepared by alcohol hydrolysis. Its performance is between plastic and rubber, with flexibility, oil resistance and chemical solvent resistance, gas barrier, water resistance after special treatment and many other excellent characteristics, widely used.

Product Parameters

PVA Type	Hydrolysis % (mol/mol)	Volatile % MAX	Ash % MAX	PH Value	Viscosity (cps.)
Full Hydrolysised	04-99	98.0-99.0	5	0.7	5--7
	05-99	98.0-99.0	5	0.7	5--7
	17-99	99.0-100	5	0.7	5--7
	24-99	99.0-100	5	0.7	5--7
	26-99	99.0-100	5	0.7	5--7
Midium Hydrolysised	14-98	98.0-99.0	5	0.7	5--7
	17-92	90.0-94.0	5	0.7	5--7
	17-98	98.0-99.0	5	0.7	5--7
Half Hydrolysised	05-88	86.0-90.0	5	0.7	5--7
	17-88	86.0-90.0	5	0.7	5--7
	20-88	86.0-90.0	5	0.7	5--7
	24-88	86.0-90.0	5	0.7	5--7

Application

Fiber field: The main use for the preparation of vinylon fiber, polyvinyl alcohol as raw materials, according to the preparation of spinning solution, spinning, stretching, heat treatment and acetal and other processes to prepare fiber grade polyvinyl alcohol, the fiber is widely used to blend with cotton for weaving into various fabrics and knitwear.
Paper field: Used for paper surface sizing agent, can improve the strength of paper, water resistance and printing performance; It can also be used as a paper coating agent to improve the gloss and printability of paper.
Textile field: As a textile slurry, it can improve the wear resistance and weaving efficiency of yarns; In printing and dyeing processing, it can be used as a carrier of dyes and auxiliaries to improve the uniformity and color fastness of dyeing.
Construction field: can be used for building coatings and adhesives, such as cement mortar additives, can improve the bond strength and crack resistance of mortar; It can also be used for building waterproof coils and sealing materials.
In the field of organic synthesis: Participate in a variety of organic synthesis reactions, such as reacting with aldehydes to produce acetal compounds, reacting with acid anhydrides to produce ester compounds, etc. These products are widely used in plastics, coatings, adhesives and other industries.
Pharmaceutical field: Used to prepare medicinal film, artificial kidney film, etc. Used as excipients in some pharmaceutical preparations, such as adhesives for tablets and fillers for capsules; Pva eye drops can be used as a lubricant to prevent or treat irritation symptoms such as eye dryness, foreign body sensation, eye fatigue, or improve dry eye symptoms.
Other areas: Can be used as a soil conditioner to improve soil structure; It is also used in polymerization suspension agents and emulsifiers. It can also be used as a quenching agent.

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