Zinc Dimethacrylate-Reinforced Thermoplastic Vulcanizates Based on Ethylene-Vinyl Acetate Copolymer/Chlorinated Polyethylene Rubber/Nitrile Butadiene Rubber Blends

Abstract

Thermoplastic vulcanizates (TPVs) based on ethylene-vinyl acetate copolymer (EVA)/chlorinated polyethylene rubber (CPE)/nitrile butadiene rubber (NBR) blends were prepared by dynamic vulcanization, with the TPVs being reinforced by zinc dimethacrylate (ZDMA). Experimental results indicated that mechanical properties of dynamically vulcanized EVA/CPE/NBR blends were enhanced remarkably by the incorporation of ZDMA. There were some ZDMA particles dispersed on the etched surface of EVA/CPE/NBR/ZDMA blends with diameters of about 10 µm. A rubber process analyzer revealed that the storage modulus decreased significantly with increasing strain when the strain was 2% above and the incorporation of ZDMA in the TPVs enhanced the Payne effect.

Keywords:

• Chlorinated polyethylene
• Ethylene-vinyl acetate copolymer
• Nitrile butadiene rubber
• Payne effect
• Reinforcement
• Zinc dimethacrylate

ACKNOWLEDGMENT

The work was funded by a Project of Shandong Province Higher Educational Science and Technology Program (J12LA15), the Science and Technology Development Project of Qingdao (12-1-4-3-(9)-jch), the Natural Science Foundation of Shandong Province (ZR2012EMM002), and the National Natural Science Foundation of China (51272115).