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VMA Vinyl Resin equivalent to Dow VMCA

VMA Vinyl Resin equivalent to Dow VMCA

Place of Origin : China
Brand Name : Sinfeng
Model Number : VMA
Certification : REACH;ISO9001
Packaging Details : 25KG/BAG
Delivery Time : about two weeks
Payment Terms : T/T;L/C
Supply Ability : 500MT/Month
MOQ : 1 MT
Sample : Sample
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Characteristice:A low molecular weight resin containing approximately 81 percent vinyl chloride, 17 percent vinyl acetate, and 2 percent maleic acid. Because of the carboxyl functional group, VMA has excellent adhesion on metal, especially on aluminum foil, the resin foil also has a good adhesion on PVC , ABS, paper, textiles, beton, etc. At the same time, VMA offers a desirable balance of chemical resistance, solubility, diaphaneity, film strength, and thermoplasticity. It has excellent interbedded adhesion.

Solubility:VMA is characterized by a high degree of solubility in solvent systems having a high aromatic hydrocarbon content. When dissolved in a suitable solvent/diluent combination, such as 25 percent ketone/75 percent aromatic hydrocarbon, resin solutions of 30 percent solids can be achieved. Ketones is a particularly good solvent, and esters is the relatively weak solvent. Chlorinated hydrocarbons such as dichloroethane and 1,2 - dichloroethane can completely dissolve VMA, and methyl chloroform and tetrachloroethane can only swell it. Aromatic hydrocarbons have a good role in the swelling, generally using with ketone.

Application:VMA yields the good balance of solubility and viscosity properties needed for high-build, air-dry maintenance finishes, and is often used to make coatings and adhesives applications where higher solids are desirable. VMA can be used in air-dry finishes, such as maintenance, marine, and metal coatings, interbedded adhesive, aluminum foli varnish, UV surface treatment, UV primer, thermal transfer adhesive, shoe adhesive, ink-jet and metal inks, etc.

VMA Vinyl Resin Quality standard (XHQB-8)

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

Vinyl Acetate 17±1%

ISO1159-1978

Maleic Acid 2±0.2%


4

Reactive Functionality (Carboxyl %)

2±0.2%


5

K Value

32-34

GB/T3401-1999

6

Viscosity No. ml/g

40-44

GB/T3401-1999

7

Glass Transition Temp ℃

About 70

GB11998-89

8

Average Molecular Wt

About 15000

Calculated by the Viscosity No.

9

% by wt, through 60 mesh

100%

GB/T6003.1

10

Apparent density (g/ml)

≥0.5

GB20022-2005

11

Volatilization (%)

≤1%

GB/T2914-1999

12

Impurity Particle No. /100g

≤20

GB9348-88

13

25% resin in MEK/Toluene(50/50)

Colorless and Transparent

By visual


Product Tags:

vinyl resin

      

vinyl chloride resin

      

resins

      
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VMA Vinyl Resin equivalent to Dow VMCA Images

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