TOUGHENING OF POLYCARBONATE WITH PBA-PMMA CORE-SHELL PARTICLES

Wei-guo Yao; Li-qin Wang; Da-yong He; Shi-chun Jiang; Li-jia An; Hui-xuan Zhang

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TOUGHENING OF POLYCARBONATE WITH PBA-PMMA CORE-SHELL PARTICLES

Note | Updated：2021-06-21

- TOUGHENING OF POLYCARBONATE WITH PBA-PMMA CORE-SHELL PARTICLES
- Vol. 23, Issue 3, Pages: 337-340(2005)
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- Published：20 May 2005
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Wei-guo Yao, Li-qin Wang, Da-yong He, et al. TOUGHENING OF POLYCARBONATE WITH PBA-PMMA CORE-SHELL PARTICLES[J]. 2005, 23(3): 337-340.
DOI：

Wei-guo Yao, Li-qin Wang, Da-yong He, et al. TOUGHENING OF POLYCARBONATE WITH PBA-PMMA CORE-SHELL PARTICLES[J]. 2005, 23(3): 337-340. DOI：

摘要

The miscibility

mechanical properties

morphology and toughening mechanism of PC/PBA-PMMA blends were investigated. The dynamic mechanical results show that PC/PBA-PMMA blend has good miscibility and strong interfacial adhesion. The Izod impact strength of blend PC/PBA-PMMA with 4% (volume fraction) PBA-PMMA core-shell modifier is 16 times higher than that of pure PC. The core-shell volume fraction and thickness of the PMMA shell have effect on the toughness of PC/PBA-PMMA blends. As PMMA volume fraction increases

the toughness of PC/PBA-PMMA blend increases

and reaches a maximum value at 30% volume fraction of PMMA or so. The tensile properties of PC/PBA-PMMA blend with a minimum amount of PBA-PMMA modifier show that brittle-tough transition has no significant variance in comparison with that of pure PC. The scanning electron microscopic (SEM) observation indicates that the toughening mechanism of the blend with the pseudo-ductile matrix modified by small core-shell latex polymer particles is the synergetic effect of cavitation and shear yielding of the matrix.

Abstract

The miscibility

mechanical properties

the toughness of PC/PBA-PMMA blend increases

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