锤子
The toughening mechanism evolution of acrylic impact modifier (AIM) toughened methyl methacrylate-N-phenylmaleimide copolymers (PMMA-PMI) was investigated in terms of matrix chain entanglement density (νe), especially within the range of matrix νe?≅?0.1 mmol/cm3. After respectively blended the PMMA-PMI having designed νe with the same content preformed AIM, it was showed that the notched impact strength of the blends increase with PMMA-PMI νe enhancement.
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