Radiation preparation of ultrafine carboxylated styrene-butadiene rubber   powders and application for nylon 6 as an impact modifier

doi:10.1002/app.11323

CORC > 北京大学 > 化学与分子工程学院

	Radiation preparation of ultrafine carboxylated styrene-butadiene rubber powders and application for nylon 6 as an impact modifier
	Peng, J ; Zhang, XH ; Qiao, JL ; Wei, GS
刊名	应用聚合物科学杂志
	2002
关键词	irradiation crosslinking nylon PARTICLE-SIZE BLENDS TRANSITION MORPHOLOGY
DOI	10.1002/app.11323
英文摘要	Ultrafine carboxylated Styrene-butadiene rubber(CSBR) powders were prepared by using gamma irradiation and following spray-drying method. The influences of dose rate, absorbed dose, and sensitizer content on the crosslinking density of CSBR latices were studied in detail. Then the ultrafine CSBR powders were used to toughen nylon 6. The toughness and thermal properties of nylon 6/CSBR blends were measured by using notched Izod impact test and differential scanning calorimetry and thermogravimetry, respectively. Results showed that the crosslinking density of CSBR increased with increasing of dose and sensitizer content, and it is independent on dose rate. The notched Izod impact strength of nylon 6 under room temperature increased after incorporation of irradiation crosslinked CSBR powders with appropriate crosslinking density. The morphology of higher impact nylon 6/CSBR blends indicated that the finer dispersion existed with dispersed particles of 150-nm diameter. Fracture morphology of nylon 6/CSBR blend suggested that the shear yielding in matrix is the primary toughening mechanism for nylon 6/CSBR blends. The crystallinity of nylon 6/CSBR blends decreased slightly compared with pure nylon 6, whereas the addition of CSBR powders had little influence on the thermal stability of nylon 6. (C) 2002 Wiley Periodicals, Inc.; Polymer Science; SCI(E); EI; 26; ARTICLE; 12; 3040-3046; 86
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/256362]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Peng, J,Zhang, XH,Qiao, JL,et al. Radiation preparation of ultrafine carboxylated styrene-butadiene rubber powders and application for nylon 6 as an impact modifier[J]. 应用聚合物科学杂志,2002.
APA	Peng, J,Zhang, XH,Qiao, JL,&Wei, GS.(2002).Radiation preparation of ultrafine carboxylated styrene-butadiene rubber powders and application for nylon 6 as an impact modifier.应用聚合物科学杂志.
MLA	Peng, J,et al."Radiation preparation of ultrafine carboxylated styrene-butadiene rubber powders and application for nylon 6 as an impact modifier".应用聚合物科学杂志 (2002).