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A-8531
A-8531 grafted compatibilizer variants for filled and alloy systems
Two source TDS documents use the A-8531 model code: a PS-g-MA route for PS/GF and PS/CaCO3, and a SAN-g-MA route for PA/GF, PBT/GF and PC/ABS. Both list a 2-4% starting range, so the graft base must be confirmed before ordering or testing.
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TDS-derived technical profile
Key values listed for A-8531
The following technical values are taken from the current TDS to support grade selection and initial formulation work.
| Property | Listed value |
|---|---|
| Listed dosage | 2-4% |
| Effective substance content | 100% |
| Density | 0.9 g/cm3 |
| Melt flow rate | 0.6 g/10 min |
| Hardness | 78 Shore A |
| Vicat softening temperature | 100°C PS-g-MA; 80°C SAN-g-MA |
| Melting point | 160°C |
| Elongation at break | 800% |
What this grade is positioned to support
- PS-g-MA compatibility route for filled PS
- SAN-g-MA compatibility route for engineering-plastic blends
- Interfacial adhesion and dispersion evaluation
How to prepare the first evaluation
- 01
Blend A-8531 with the selected resin for 5-8 minutes.
- 02
Proceed by extrusion, injection molding or blow molding after uniform mixing.
- 03
Evaluate the target property on matched control and modified samples.
Technical documentation
Request current TDS Current TDS and application guidance
Source file: a-8531-tds.pdf. The same model code appears on two distinct graft-base TDS documents; confirm PS-g-MA or SAN-g-MA before quotation and sample approval. Do not treat the two variants as interchangeable without checking the resin pair and filler.