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Vinyl Chloride Vinyl Acetate Copolymer Resin DY-4 Equivalent To DOW VYNS-3 For Adhesive

VYNS-3 DY-4

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Description

Vinyl Chloride Vinyl Acetate Copolymer Resin DY-4 Equivalent To DOW VYNS-3

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Specifications:

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No. | Item | Index | Test Method & Criteria |
1 | Appearance | White powder | By visual |
2 | Whiteness | ≥80 | GB2913-82 |
3 | Viscosity (Ml/g) | 68-72 | GB/T3401-1999 |
4 | K Value | 57-59 | GB/T3401-1999 |
5 | Vinyl Acetate Content (﹪,by Wt) | 10-12 | ISO1159-1978 |
6 | Volatilization (﹪) | ≤1 | GB/T2914-1999 |
7 | Grain Size (through 60 mesh) | 100﹪ | GB/T6003.1 |
8 | Stacking density (g/ml) | ≥0.5 | GB20022-2005 |
9 | Impurity Particle No. (grains/100g) | ≤20 | GB9348-88 |
10 | Solubility 25%(MEK: Toluene=1:1)solution | Colorless, Transparent, No insoluble matter | By visual |
11 | Countertype | VYNS-3 | DOW |
H11/59 | WACKER |
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Applications:

DY-4 is mainly applied in strippable coating, PVC ink, paper ink, electric cable material, pigment paste and flake for PU, PVC adhesive, leather treatment agent, thermal insulating foaming material, additive for PVC modification, calcium-plastic floor, coating etc.

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Solubility & Compatibility:

For DY-4 type of bipolymer, ketone solvents are especially suited, such as acetone, MEK, nadone and isophorone.

Ester solvents have lower solubility for DY-4 resin, such as methyl acetate, ethyl acetate and butyl acetate etc, Therefore, we need to heat the solution or add ketone solvents into the solution while DY-4 resin is dissolved in ester solvents.

Chlorohydrocarbons, Nitro compound and alicyclic solvents, such as dichloroethane and diethylene oxide, also can dissolve DY-4 type of bipolymer, but these kinds of solvent are toxic, they are only used in special situation.

DY-4 type of bipolymer is miscible with other resins during the course of usage, such as other types of vinyl chloride vinyl acetate copolymer, PVC resin, perchloro-ethylene resin, ketone resins, chloroprene rubber, NBR, polyacrylate, epoxy resin, polyester and petroleum resin etc.

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Stability:

DY-4?resin has excellent light and heat stability, but when it is used outdoors or at higher temperature, the following stabilizers are suggested to use with it, such as organotin stabilizer without sulphur, epoxy compound stabilizer, light resistant ultraviolet stabilizer.

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Packaging and Storage:

DY-4 resin is usually packaged into the craft paper-plastic composite bag lined with plastic film according to 25Kgs per bag.

DY-4?resin should be stored in dry place away from sunlight. Any queries on technology or quality assurance can be inquired to our company. Should DY-4?resin have been kept over the shelf time, it shouldn’t mean the resin is invalid, but the user has to test the relevant properties of DY-4?resin and its finished product before using it in bulk.

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Competitive Advantage:

More appropriate price under the same quality as the one out of China.

Timely and effective service based on quality and technic.

Shorter lead time based on requirements from clients

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