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High Viscosity Carboxyl - Modified Vinyl Chloride Vinyl Acetate Terpolymer Resin YMCH-H Used In Silk-Screen Printing Ink
A) Technologic Index
| No. | Item | Index | |
| 1 | Appearance | White powder | |
| 2 | whiteness | ≥80 | |
| 3 | Content (%,by Wt) | Vinyl Acetate | 13±1 |
| Maleic Acid | 1.5±0.5 | ||
| 4 | K Value | 47-51 | |
| 5 | Viscosity (Ml/g) | 55-60 | |
| 6 | Grain Size (through 60 mesh) | 100 | |
| 7 | Stacking density (g/ml) | ≥0.5 | |
| 8 | Volatilization (%) | ≤1% | |
| 9 | Impurity particle No. (grains/100g) | ≤20 | |
| 10 | Solubility 25%(MEK : Toluene=1:1)solution | Colorless, transparent, no insoluble matter | |
For YMCH-H type of terpolymer resin, ketone solvents are specially suited, such as ace-tone, MEK, nadone and isophorone. Compared with ketone solvents, ester solvents have lower solubility for YMCH-H resin, such as methyl acetate, ethyl acetate and butyl acetate etc. Therefore, we need to heat the solution or add ketone solvent into the solution while YMCH-H resin is dissolved in ester solvents. Chlorohydrocarbons, Nitro compound and alicyclic solvents, such as dichloroethane and diethylene oxide, also can dissolve YMCH-H terpolymer resin, but these kinds of solvent are toxic, they are only used in special situation.
YMCH-H type of terpolymer resin 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.
D) Stability
YMCH-H resin has excellent light and heat stability, but when they are used outdoors or at higher temperature, the following stabilizers are suggested to use with it, such as organotin stabilizer without sulphur, epoxy compound stabilizers and light resistant ultraviolet stabilizer.
E)Packaging and Storage
YMCH-H resin should be stored in dry place away from sunlight, any queries on technology or quality assurance can be inquired to our company. Should the YMCH-H 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 YMCH-H resin and its finished product before using it in bulk.