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Carboxyl-Modified Vinyl Chloride/Vinyl Acetate Copolymers VMA

Carboxyl-Modified Vinyl Chloride/Vinyl Acetate Copolymers VMA

Carboxyl-Modified Vinyl Chloride/Vinyl Acetate Terpolymers

Ink Raw Material Vinyl Chloride Copolymer Resin,Vinyl Acetate

Grade VMA: It is white powder,ketone soluble with colorless,transparent solution, and because of the carboxyl functional group, it has excellent adhesion on metal, especially on aluminum foil, the resin foil also has a good adhesion on PVC, ABS, paper, textiles, beton, etc. Moreover, it offers a desirable balance of chemical resistance, solubility, diaphaneity, film strength, and thermoplasticity. And it has excellent interbedded adhesion.

VMA Vinyl Resin Quality standard (XHQB-6)

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

32-36

GB/T 3401-2007

6

Viscosity No. ml/g

30-34

GB/T 3401-2007

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 or yellowish

By visual

Application:

VMA grade yields the good balance of solubility and viscosity properties needed for high-build, air-dry maintenance finishes,and it is often used to make coatings and adhesives applications where higher solids are desirable. It 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.

Package, storage and transportation:

* In kraft bag, lined with pp bags of 25kgs net, with PE inner bag.

* Store in a dry and ventilated place, do not place in open-air, avoid storage in direct sunlight and caution against wet.

* Must be transported in clean vehicle with awning and keep away from moisture.

* It is NOT hazardous article, and the shelf life is one year from the production date.



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