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A study on poly(vinyl chloride) blends with chlorinated polyethylene and polyethylene

Abstract By means of a twin‐roll masticator and Brabender rheometer, the effect of chlorinated polyethylene (CPE) and polyethylene (PE) on the impact strength and processability of poly(vinyl chloride) (PVC) was studied. The experimental results show that CPE can promote the plasticity of PVC and the effect increases with the amount of CPE. Addition of a small amount of PE in PVC/CPE (100/12) makes an impressive improvement in the impact strength of the mixture. The impact strength of PVC/CPE/PE (100/ 12/2.5) at 20°C is 30.0 kJ/m 2 higher than that of PVC/CPE (100/12). The dynamic viscoelastic spectra, tensile strength, and elongation test reveal that CPE is incompatible with PVC but may act as a compatibilizer for PVC/PE. The disperse state of the polyblend was studied by differential scanning calorimetry (DSC); it was found that the mixing sequence has an influence on the impact strength of the blend.

Wiley

Xu Xi Meng Xiande Chen Keqiang

Polymer Engineering & Science

2004

Title: A study on poly(vinyl chloride) blends with chlorinated polyethylene and polyethylene

Description:

The experimental results show that CPE can promote the plasticity of PVC and the effect increases with the amount of CPE.

Addition of a small amount of PE in PVC/CPE (100/12) makes an impressive improvement in the impact strength of the mixture.

The impact strength of PVC/CPE/PE (100/ 12/2.

5) at 20°C is 30.

0 kJ/m 2 higher than that of PVC/CPE (100/12).

The dynamic viscoelastic spectra, tensile strength, and elongation test reveal that CPE is incompatible with PVC but may act as a compatibilizer for PVC/PE.

The disperse state of the polyblend was studied by differential scanning calorimetry (DSC); it was found that the mixing sequence has an influence on the impact strength of the blend.

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