Factory Supply PVA Polyvinyl Alcohol CAS 25213-24-5 PVA-1788

Product Description

PVA(Polyvinyl alcohol/vinylalcohol polymer)

Polyvinyl alcohol is an excellent water-based adhesive. The general product is flake, granular or flocculent. It is not easily soluble in cold water. Heating is generally required during dissolution. After being finely pulverized and surface treated, it has better cold water dissolving performance. But because of its thermoplasticity, pulverization becomes particularly difficult. Our factory adopts a special liquid nitrogen low temperature cooling process to ensure that the powder of the crushed material is uniform. So that the material has excellent water solubility.
 

Model	Size(mesh)	Viscosity(cps)	Alcoholysis(mol e%)	Ash(%)max	Volatile(%)max
0588	120	4.6-5.4	87-89	0.7	5.0
1788	120	20.5-24.5	87-89	0.7	5.0
2488	120	40-48	87-89	0.7	5.0

Polyvinyl alcohol is produced by the polymerization of VA. Then, PVA was saponified under the action of different alkali amounts to obtain polyvinyl alcohols having different degrees of alcoholysis. Cold-soluble polyvinyl alcohol powder is made by partially cold-milling polyvinyl alcohol by cryogenic milling. It is a water-soluble, environmentally friendly white solid powder.

Feature:
Good film formation, adhesion, solvent resistance, friction resistance and tensile strength.
Appearance:White solid powder
Melting point:180-190ºC
Size:80-120 mesh

★ Small particles, small dosage, easy to disperse.
★ Dissolved in cold water.
★ Good bonding performance; improve mortar strength.
★ Prevent mortar from cracking and detaching; increase adhesion strength and smoothness.
★ Non-toxic, tasteless and environmentally friendly.

Application:
Mortar, putty powder, coating, interface agent, decorative plaster, tile jointing agent, silicon nitride and other industrial ceramic powder bonding, cement, gypsum additives, etc.

Packaging and storage: 25kg/bag;below 30 ºC, cool,dry and Suncare






Company Profile:
Guangtong Clyde Chemical Co., Ltd. is a high-tech chemical company. The company is located in Houpengtou village, Jinzhou City, Hebei Province. The environment is beautiful. The fruits are fragrant in all seasons. The company is located in 50 kilometers west of the provincial capital Shijiazhuang and 300 kilometers north of the capital Beijing. And Shihuang Expressway, National Highway 307 and Shide Railway pass through the urban area. Which has an advantageous geographical location and convenient transportation. The company covers an area of 40,000 square meters and has RMB 30 million in fixed assets. There are more than 200 employees and 30 technicians of various types, including 16 middle and high-tech technicians. Strong economic strength and abundant human resources have laid the foundation for the company's long-term development.
The company introduced a large-scale automated production line from Germany, specializing in the production of redispersible polymer powder, hydroxypropyl methyl cellulose, sodium carboxymethyl cellulose, and polycarboxylic acid water reducer. Our products are widely used in chemical, building materials, construction, paint, cosmetics, agriculture and other industries. Our factory has advanced production equipment, testing equipment, strong technical force, sufficient R & D personnel and independent research and development capabilities. Product quality has reached the international leading level. Our products sell well both at home and abroad and have won wide acclaim.

Certificates: