Characteristice: A low molecular weight copolymer containing approximately 81 percent vinyl chloride, 4 percent vinyl acetate, and 15 percent hydroxyalkyl acrylate, with the hydroxyl content at 2.0 percent. VOH has excellent adhesion on paper, polysulfone resin, acrylic resin, PVC, ABS, PC and the surface of ink. VOH has good compatibility with other film-forming material, such as alkyd resins, polyurethane elastomers, isocyanate resin, melamine resin, urea formaldehyde, epoxy polymers and so on. So VOH often used with other film-forming material in order to improve the coating performance, and enhance paint adhesion, flexibility, tenacity, hardness and chemical resistance. Because of the hydroxyl functional group, VOH can also be used for improving the characteristics including alkyd, two-component polyurethane, and two-component epoxy coatings.
Solubility: Ketones is a particularly good solvent, and esters is the relatively weak solvent. Chlorinated hydrocarbons such as dichloroethane and 1, 2 - dichloroethane can be completely dissolved VOH, and methyl chloroform and tetrachloroethane can only swell it. Aromatic hydrocarbons have a good role in the swelling, generally using with ketone. VOH vinyl resin can dissolve in relatively strong solvent/diluent combinations, such as 50 /50 ketone/aromatic hydrocarbon, to produce resin solutions of 25-28 percent solids. VOH resin solution viscosity and other characteristics is very similar to VAD, because of its low molecular weight, with greater solubility, it can be dissolved with a high level of resin solid content.
Application: VOH can be used for a wide range of coatings applications for maintenance, marine and metal finishes, marine anti-corrosion paint, cans paint, wood and plastic finishes, paper and leather coatings, PET inks, adhesive for magnetic tape and carbon ribbon.
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VOH Vinyl Resin Quality standard (XHQB-14) |
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No. |
Item |
Index |
Test method |
|
1 |
Appearance |
White powder |
By visual |
|
2 |
Whiteness |
≥ 80 |
GB2913-82 |
|
3 |
Composition % by Wt |
Vinyl Chloride 81± 1% |
GB/T7139-2002 |
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|
|
Vinyl Acetate 4± 1% |
ISO1159-1978 |
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|
|
Hydroxyalkyl Acrylate 15± 1% |
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|
4 |
Reactive Functionality (Hydroxyl %) |
1.9-2.1% |
|
|
5 |
Hydroxyl Value |
66 |
ISO2554-1974 |
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6 |
K Value |
30-32 |
GB/T3401-1999 |
|
7 |
Viscosity No. Ml/g |
32-36 |
GB/T3401-1999 |
|
8 |
Glass Transition Temp |
About 65 |
GB11998-89 |
|
9 |
Average Molecular Wt |
About 15000 |
Calculated by the Viscosity No. |
|
10 |
% by wt, through 60 mesh |
100% |
GB/T6003.1 |
|
11 |
Apparent density (g/ml) |
≥ 0.5 |
GB20022-2005 |
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12 |
Volatilization (%) |
≤ 1% |
GB/T2914-1999 |
|
13 |
Impurity Particle No. /100g |
≤ 20 |
GB9348-88 |
|
14 |
25% resin in MEK/Toluene(50/50) |
Colorless and Transparent |
By visual |
Covering an area of 20, 000 square meters, our factory was established in 1998, located in the ancient historical city of Huizhou County, with the fixed assets of 2500 million yuan. We are professional manufacturer for vinyl chloride - vinyl acetate copolymer. The annual production capacity of the various grades of vinyl resin up to 15, 000 tons.
Through self-development as well as cooperate with other major institutions, we obtained advanced technology. Using advanced production technology and scientific management methods, we have a complete set of quality assurance system, passed the ISO9001: 2000. We never bring mass loss to the customers since we founded more than ten years, our quality has always been maintained stable.
Our products can replace DOW SVR series, such as DOW's VYHH, VMCH, VAGH etc. Mainly used in metal, wood, PET film, plastic, paper, leather, concrete, transparent and colored coatings, and other materials.
With the spirit of "quality first, reputation first" principle, we provide quality products with low prices to all kinds of customers, such as the pharmaceutical packaging aluminum foil, aluminum foil varnish, anodized aluminum, coatings, magnetic card material, thermal insulation materials, floor, carpet, plastic inks, ink for high temperature cooking, aluminum foil printing ink, leather surface treatment, PU color ointment, plastic paint, toy paint, UV paint, Wood, ranked nail glue, shoe adhesives, interlayer adhesive, adhesive for carbon ribbon and magnetic tape manufacturers.
Our company can produce different degree of polymerization and different components vinyl resin according to customer's requirements.
