Effects of blending time and catalyst on the properties of nylon 1010/acrylate rubber blends |
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| Authors: | Xianbo Lu Hongmei Zhang Yong Zhang |
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| Affiliation: | State Key Laboratory of Metal Matrix composites, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, , Shanghai, 200240 China |
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| Abstract: | Nylon 1010 and acrylate rubber (ACM) were prepared by melt blending. The effects of blending time and catalyst on the properties of the blends were studied. It was found that ester‐amide exchange reactions between the Nylon 1010 and ACM occurred during melt processing. Long blending time and Tetrabutyl titanate (Ti(OBu)4) as a catalyst could promote the reactions, and grafted copolymer Nylon‐g‐ACM was in situ generated as a compatibilizer during processing procedure. The tensile strength of the blends increased from about 12.0–15.0 MPa when the blending time increased from 10 to 30 min. The presence of Ti(OBu)4 led to the decrease in melt flow index (MFI), independent of the blending time (30 or 60 min). Glass transition temperature and heat of fusion of the blends increased after addition of the catalyst. Rheological behavior analysis provided evidence of formation of Nylon‐g‐ACM graft copolymer. Scanning electron microscopy (SEM) showed that the compatibility of the blends was improved by longer blending time and the addition of catalyst. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 130: 4587–4597, 2013 |
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| Keywords: | blends compatibilization polyamides rubber |
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