作者: Yu Gui, Lixin Song, Huixuan Zhang
摘要: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. The morphological analyses revealed that the extent of shear yielding gradually enlarged when matrix νe is higher than 0.1061 mmol/cm3. Whereas, in the AIM/PMMA-PMI blend with lower matrix νe, the toughening mechanism transformed into matrix crazing triggered by PBA cavitation. The results suggest that the response of the matrix with different νe to the rubber particle cavitation dominate toughening mechanism and mechanical performance of AIM/PMMA-PMI blends, and it is believed that matrix νe is an inherent factor to toughening mechanism evolution.
相關(guān)產(chǎn)品
免責(zé)聲明
- 凡本網(wǎng)注明“來源:化工儀器網(wǎng)”的所有作品,均為浙江興旺寶明通網(wǎng)絡(luò)有限公司-化工儀器網(wǎng)合法擁有版權(quán)或有權(quán)使用的作品,未經(jīng)本網(wǎng)授權(quán)不得轉(zhuǎn)載、摘編或利用其它方式使用上述作品。已經(jīng)本網(wǎng)授權(quán)使用作品的,應(yīng)在授權(quán)范圍內(nèi)使用,并注明“來源:化工儀器網(wǎng)”。違反上述聲明者,本網(wǎng)將追究其相關(guān)法律責(zé)任。
- 本網(wǎng)轉(zhuǎn)載并注明自其他來源(非化工儀器網(wǎng))的作品,目的在于傳遞更多信息,并不代表本網(wǎng)贊同其觀點(diǎn)和對其真實性負(fù)責(zé),不承擔(dān)此類作品侵權(quán)行為的直接責(zé)任及連帶責(zé)任。其他媒體、網(wǎng)站或個人從本網(wǎng)轉(zhuǎn)載時,必須保留本網(wǎng)注明的作品第一來源,并自負(fù)版權(quán)等法律責(zé)任。
- 如涉及作品內(nèi)容、版權(quán)等問題,請在作品發(fā)表之日起一周內(nèi)與本網(wǎng)聯(lián)系,否則視為放棄相關(guān)權(quán)利。