DA-90 is acrylic copolymer with high molecular weight (HMW) and super melt strength. It is processing aid for general purpose and it can obviously improve melt strength of PVC compound, prevent bubble from melt and crack to get more homogeneous foaming structure and low density of product. It also can improve surface gloss of PVC product.
It is white flowing powder. It can be dissolved in ketone and chloroform, but not in water and alcohol
.
Quality Specification
|
Item |
Index (DA-90 series) |
|
Inherent Viscosity [η], 25℃ |
12.5-14.5 |
|
Bulk Density, g/cm3 |
0.35 |
|
Volatile matter, % ≤ |
1.0 |
|
Particle size (0.45mm(40 mesh) passed % ≥ |
98 |
Application
To be used in PVC foamed products, PVC profiles, pipe, sheet, board etc.
Typical Characteristic
Excellent comprehensive property; It is fit for all kinds of low foamed products.
Packing and Storage
25kg net in PP woven bag or kraft bags with PE bag lined. The product is non-toxic, non-corrosive solid powder and non-dangerous goods for transport.
To be stored in cool and ventilated warehouse, avoid direct exposure to sunlight. Guarantee period for 12 months, if more than one year, it can be used after passing inspection.
