Hydroxyl-Modified Vinyl Chloride/Vinyl Acetate Copolymers MVAH
New grade MVAH: It is white powder、ester soluble with colorless and transparent solution,and it has with excellent solvent release、film-forming、dispersibility、color contrast property and wettability,moreover, it has excellent dispersibility in pigment and has very good adhesive force on PET,which can completely replace UMOH grade of WUXI etc.
MVAH Vinyl Resin Quality standard (XHQB-10)
No. | Item | Index | Test method |
1 | Appearance | White powder | By visual |
2 | Whiteness | ≥80 | GB2913-82 |
3 | Composition % by Wt | Vinyl Chloride 90±1% | GB/T7139-2002 |
Vinyl Acetate 3±1% | ISO1159-1978 | ||
Vinyl Alcohol 7±0.5% | |||
4 | Reactive Functionality (Hydroxyl %) | 1.8-2.3% | |
5 | Hydroxyl Value | 70-76 | ISO2554-1974 |
6 | K Value | 46-48 | GB/T 3401-2007 |
7 | Viscosity No. ml/g | 52-56 | GB/T 3401-2007 |
8 | Glass transition Temp ℃ | About 79 | GB11998-89 |
9 | Average Molecular Wt | About 27000 | Calculated by the Viscosity No. |
10 | % by wt, through 50 mesh | 100% | GB/T6003.1 |
11 | Apparent density (g/ml) | ≥0.5 | GB20022-2005 |
12 | Volatilization (%) | ≤2% | GB/T2914-1999 |
13 | Impurity Particle No. /100g | ≤20 | GB9348-88 |
14 | 20% resin in EA or MEK | Colorless and Transparent or Yellowish | By visual |
Application:
MVAH new grade is mainly used for application gravure plastics composite printing inks、PU inks、can sealed coatings、plastic coatings、magnetic tape and carbon tape adhesive、car refinishing paint 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.