Impact Modifier CPE135A
Introduction
The first: the type of PE used — impact modifier CPE135A from high molecular weight polyethylene has higher viscosity and tensile strength, but the adhesion between impact modifier CPE135A and PVC resin is low, the viscosity and tensile strength of impact modifier CPE135A from low molecular weight polyethylene is low, the impact modifier CPE135A from high density polyethylene has a good heat-resistant variable performance.Second: the size of the raw material particles — too small particle size is easy to form jelly or agglomerate impact modifier CPE135A, the chlorine distribution is not uniform when the particle size is too large, insoluble in organic solvents, particle size range of 0.1-200 m is the best.Third, the chlorination degree of impact modifier CPE135A — when the chlorine content is below 25%, it has poor compatibility with PVC and cannot be used as a modifier;Good compatibility with PVC when chlorine content is over 40%, it can be used as a solid plasticizer, not suitable for impact modifier;CPE with chlorine content of 36-38% is widely used as impact modifier for PVC due to its good elasticity and compatibility with PVC.
High rate filling of various fillers
| ITEM | UNIT | INDEX |
| Chlorine content | % | 35±2% |
| Sieve residue(0.9mm) | % | ≤2.0% |
| Impurity particle | Pcs/100g | ≤60 |
| Thermal decomposition temperature | ℃ | ≥165 |
| Apparent density | G/ml | ≥0.46 |
| Shore hardness | A | ≤65 |
| Tensile strength | Mpa | ≥22 |
| Elongation at break | % | ≥530 |
| 100% tensile stress | ≤2.0 |
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