Morphology, thermal behavior, and mechanical properties of PA6/UHMWPE blends with HDPE-g-MAH as a compatibilizing agent
| Autor: | Jinghua Yin, Chaozhong Liu, Zhihui Yin, Jin Tong, Luquan Ren, Guoen Sun, Zhanhai Yao |
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| Rok vydání: | 2000 |
| Předmět: |
Materials science
Polymers and Plastics Scanning electron microscope Maleic anhydride Izod impact strength test General Chemistry Polyethylene Surfaces Coatings and Films chemistry.chemical_compound chemistry Ultimate tensile strength Polyamide Materials Chemistry Polymer blend High-density polyethylene Composite material |
| Zdroj: | Journal of Applied Polymer Science. 75:232-238 |
| ISSN: | 1097-4628 0021-8995 |
| Popis: | A functionalized high-density polyethylene (HDPE) with maleic anhydride (MAH) was prepared using a reactive extruding method. This copolymer was used as a compatibilizer of blends of polyamide 6 (PA6) and ultrahigh molecular weight polyethylene (UHMWPE). Morphologies were examined by a scanning electron microscope. It was found that the dimension of UHMWPE and HDPE domains in the PA6 matrix decreased dramatically, compared with that of the uncompatibilized blending system. The size of the UHMWPE domains was reduced from 35 mu m (PA6/UHMWPE, 80/20) to less than 4 mu m (PA6/UHMWPE/HDPE-g-MAH, 80/20/20). The tensile strength and Izod impact strength of PA6/UHMWPE/HDPE-g-MAH (80/20/20) were 1.5 and 1.6 times as high as those of PA6/UHMWPE: (80/20), respectively. This behavior could be attributed to chemical reactions between the anhydride groups of HDPE-g-MAH and the terminal amino groups of PA6 in PA6/UHMWPE/HDPE-g-MAH blends. Thermal analysis was performed to confirm that the above chemical reactions took place during the blending process. (C) 2000 John Wiley & Sons, Inc. |
| Databáze: | OpenAIRE |
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