STRUCTURE AND PROPERTIES OF iPP/MODIFIED NANO-CaCO3 COMPOSITES

doi:10.3724/SP.J.1105.2011.10334

CORC > 化学研究所 > 中国科学院化学研究所

	STRUCTURE AND PROPERTIES OF iPP/MODIFIED NANO-CaCO3 COMPOSITES
	Li Liangzhao 1; Zhang Xiuqin 1; Luo Faliang 1,2; Zhao Ying 1; Wang Dujin 1
刊名	ACTA POLYMERICA SINICA
	2011-10-20
期号	10 页码:1218-1223
关键词	Calcium Stearate Nano-caco3 Polypropylene Composites Mechanical Properties Crystallization
ISSN号	1000-3304
DOI	10.3724/SP.J.1105.2011.10334
英文摘要	Calcium stearate modified nano-CaCO3 (CaSt-nano-CaCO3) was prepared, and iPP/calcium stearate modified nano-CaCO3 (iPP/CaSt-nano-CaCO3) was prepared by melt blending iPP with CaSt-nano-CaCO3 particles. Compared with pure iPP, the addition of CaSt-nano-CaCO3 and nano-CaCO3 particles both increased flexural strength and flexural modulus of iPP, and impact strength was also improved in these two series composites. In comparison with iPP/nano-CaCO3 the impact toughness of iPP/CaSt-nano-CaCO3 composites was improved slightly, while the flexural modulus of iPP/CaSt-nano-CaCO3 was obviously increased. Differential scanning calorimetry (DSC) and polarized optical microscopy (POM) tests showed that with increasing CaSt-nano-CaCO3 content, the crystallization temperature and the nucleating ability of the composites were all increased. The crystallization temperature of iPP/CaSt-nano-CaCO3 is lower than that of iPP/nano-CaCO3 with the same filler content, indicating that the nucleating ability of CaSt-nano-CaCO3 is weaker than that of nano-CaCO3 in iPP matrix. Wide-angle X-ray diffraction (WAXD) results showed the composites did not exhibit beta crystal form after addition of nano-CaCO3 and CaSt-nano-CaCO3 particles. Compared with iPP/nano-CaCO3 the presence of calcium stearate increases the melt flow rate (MFR) of iPP composite with the same filler content, implying that the processability of the composites will be improved with the modification of nano-CaCO3 with calcium stearate.
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000296076700016
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/73565]
专题	中国科学院化学研究所
通讯作者	Li Liangzhao
作者单位	1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, CAS Key Lab Engn Plast, Inst Chem, Beijing 100190, Peoples R China 2.Ningxia Univ, Key Lab Energy & Chem Engn Ningxia Autonomous Reg, Yinchuan 750021, Peoples R China
推荐引用方式 GB/T 7714	Li Liangzhao,Zhang Xiuqin,Luo Faliang,et al. STRUCTURE AND PROPERTIES OF iPP/MODIFIED NANO-CaCO3 COMPOSITES[J]. ACTA POLYMERICA SINICA,2011(10):1218-1223.
APA	Li Liangzhao,Zhang Xiuqin,Luo Faliang,Zhao Ying,&Wang Dujin.(2011).STRUCTURE AND PROPERTIES OF iPP/MODIFIED NANO-CaCO3 COMPOSITES.ACTA POLYMERICA SINICA(10),1218-1223.
MLA	Li Liangzhao,et al."STRUCTURE AND PROPERTIES OF iPP/MODIFIED NANO-CaCO3 COMPOSITES".ACTA POLYMERICA SINICA .10(2011):1218-1223.