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Carboxyl-Modified Vinyl Chloride/Vinyl Acetate Copolymers VAMA

Carboxyl-Modified Vinyl Chloride/Vinyl Acetate Copolymers VAMA

Carboxyl-Modified Vinyl Chloride/Vinyl Acetate Terpolymers

Ink Raw Material Vinyl Chloride Copolymer Resin,Vinyl copolymer resin for printing ink,Vinyl chloride vinyl acetate copolymer

Grade VAMA: 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.At the same time, it also has good water resistance, excellent oil, ester, acid, alkali and salt water solution resistance.

VAMA 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 86±1%

GB/T7139-2002

Vinyl Acetate 13±1%

ISO1159-1978

Maleic Acid 1±0.2%

4

Reactive Functionality (Carboxyl %)

1±0.2%

5

K Value

45-47

GB/T 3401-2007

6

Viscosity No. ml/g

50-54

GB/T 3401-2007

7

Glass Transition Temp℃

About 74

GB11998-89

8

Average Molecular Wt

About 27000

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:

VAMA grade is used primarily for air-dry finishes, such as maintenance, marine and metal coatings, aluminum foil varnish,cans sealed paint,shoe adhesive,floor paint,cement paint,silk screen printing and transfer ink. And it often mixes with LC-40 grade, which is used in the production of heat sealing packaging coatings, can effectively reduce the heat sealing temperature, raise the heat sealing strength. It also can be used to produce the VC sealing plastic package, Electro-chemical aluminum paint, thermal transfer adhesive.

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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