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Audited Supplier PVC resin is the most widely raw material used in plastic production. It has good chemical stability corrosion resistance and water resistance. It can be dissolved in aceton , hydrochloric ether, ester and some alcohol . It can offer good solubility , good electrical insulation , thermoplasticity and membrane forming capacity.
The PVC Resins are polymerized by suspension process, their appearance being in white powder form.
They are essential materials for preparing PVC compounds. By adding blending agents and employing different techniques, they can be made into rigid or non-rigid PVC products and are suppliable in a wide range of transparent, translucent, and opaque colours.
| Test Item | Superior | Qualified | Test value |
| Appearance | White powder | White powder | White powder |
| Average degree of polymerization | 651-750 | 651-750 | 712 |
| Impurity particles number | 20 | 60 | 8 |
| Volatiles % | 0.30 | 0.40 | 0.17 |
| Apparent density g/ml | 0.53-0.61 | 0.53-0.61 | 0.58 |
| Residue on Sieve 250μm | 1.6 | 1.6 | 0.05 |
| Number of "fisheye" | 30 | 60 | 6 |
| Resin plasticizer absorption | 12 | 12 | 16 |
| Whiteness | 75 | 70 | 78 |
| Residual | 1 | 10 | 1 |
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