【正文】 BS alloy by using MAH as reactive patibilizers were studied. Materials’ notched impact strength improves from KJ/m2 to which increased by %. The results showed the use of ABSgMAH could improve the patibility of PC/ABS alloy. The reactive patilizer had not only excellent effect on toughening, but also on tensile strength of PC/ABS alloy. PC/ABS/EVA posite was prepared by EVA blending with PC and ABS. The investigations of the mechanical properties showed the singlenotched impact strength of PC/ABS alloys by adding 5 shares of elastomer was markedly improved. When the elasticcore was μm and the elastomer dispersed uniformly in the resin blend the notched impact strength reached the highest KJ/m2 which increased by %. EVA dispersed in the resin, absorbed and dispersed impact stress by its shape changing, so crazing of EVA toughens PC/ABS alloys. EVAgMAH, the patibilizing and toughening, was melting blended with polycarbonate (PC) and acrylonitrilebutadienestyrene (ABS), and the PC/ABS/elastomer posite material was prepared. The investigations of the mechanical properties show a markedly improvement on the singlenotched impact strength of PC/ABS blends by adding elastomer. The notched impact strength of PC/ABS blends reaches the maximum 北京化工大學(xué)碩士研究生學(xué)位論文 V % by addition 3 shares of EVAgMAH. SEM micrographs of the fractured surface of PC/ABS blends reveal that the elasticcore is less than and disperses uniformly in the resin blend, and the patibilizing is increased. EVA in the EVAgMAH dispersed in resin, absorbs and disperses impact strength by its shape changing, so toughening the PC/ABS blends with crazing and patibilizing of MAH. The torque of PC/ABS blend is improved by adding elastomer. There is no toughening effect by Nanocalcium carbonate (CaCO3) filling with PC/ABS. Nanocalcium carbonate/polymer posite particles were prepared by soapless emulsion polymerization of methylmethacrylate (PMMA) and butyl acrylate (BA) on the surface of nanoCaCO3 in nanoCaCO3 aqueous suspension. The effects of posite particles on the mechanical properties of PC/ABS blends through twice extruding in double extruders were studied. The results showed that the singlenotched impact strength of PC/ABS blends is improved from KJ/m2 to of posite particle was added, and the tensile strength is improved by filling 2 shares of modified nanoCaCO3 particles. NanoCaCO3 posite particles have double toughening effects of inanic nanoparticles and rubbers. Shear yielding of modified nanoCaCO3 could be the mainly toughening contribution. Toughening mechanism is that the nanoCaCO3 particle decentralises the part point tension into all round surface. The dispersion degree of CaCO3 particles in the blends is improved when filling 北京化工大學(xué)碩士學(xué)位論文 VI the posite particles. The addition amount of the NanoCaCO3 posite particles was low, and the cost was acceptable, offering a good choice of the modification of PC/ABS alloy. KEY WORDS: PC/ABS alloy, reactive patibilizer, toughening, nanoCaCO3, mechanical properties 北京化工大學(xué)碩士研究生學(xué)位論文 VII 目 錄 摘要 ............................................................................................................ I ABSTRACT .............................................................................................III 目 錄 ...................................................................................................... VII 符號說明 .................................................................................................. XI 第一章 文獻(xiàn)綜述 ....................................................................................... 1 前言 ................................................................................................................................. 1 PC/ABS 合金的發(fā)展及研究現(xiàn)狀 ................................................................................... 1 PC/ABS 合金的國外研究現(xiàn)狀 .................................................................................... 1 PC/ABS 合金的國內(nèi)研究現(xiàn)狀 .................................................................................... 2 PC/ABS 合金相容性研究的進(jìn)展 ................................................................................... 2 PC、 ABS 共混的研究 ................................................................................................. 3 PC/ABS 合金的增容改性 ............................................................................................ 4 PC/ABS 合金增韌改性的研究 ....................................................................................... 6 ABS 對 PC 組分的增韌改性 ........................................................................................ 7 有機(jī)彈性體對 PC/ABS 的增韌研究 .......................................................................... 7 納米無機(jī)顆粒填充增韌 PC/ABS 的研究 .................................................................. 8 本文研究的研究內(nèi)容、目的和意義 ............................................................................11 第二章 PC/ABS 合金制備及其力學(xué)性能研究的基本方法 ....................... 12 引言 .................................................................................................................................. 12 PC/ABS 合金的制備 ......................................................................................................... 12 PC/ABS 合金體系的確定： .............................................................................................. 12 PC/ABS 合金制備工藝 ..................................................................................................... 13 PC/ABS 合金制備和檢測常用原料及設(shè)備 ......................................................................... 13 北京化工大學(xué)碩士學(xué)位論文 VIII PC/ABS 合金力學(xué)性能的測試方法 ..........................................................................