Core/shell rubber toughened polyamide 6: an effective way to get good balance between toughness and yield strength

	Core/shell rubber toughened polyamide 6: an effective way to get good balance between toughness and yield strength
	Shi DA ; Liu EW ; Tan TY ; Shi HC ; Jiang T ; Yang YK ; Luan SF ; Yin JH ; Mai YW ; Li RKY
刊名	rsc advances
	2013
卷号	3 期号:44 页码:21563-21569
关键词	SEMICRYSTALLINE POLYMER BLENDS MECHANICAL-PROPERTIES REACTIVE EXTRUSION PARTICLES BEHAVIOR NYLON-6 MELT TOUGHENABILITY POLYPROPYLENE COMPOSITES
ISSN号	2046-2069
通讯作者	shi da
中文摘要	we have recently shown that by adding 10 to 30 wt% core/shell toughener with a low density polyethylene (ldpe) core and a polybutadiene-g-maleic anhydride (pb-g-mah) rubber shell to polyamide 6 (pa6), the impact strength of pa6 matrix can be significantly increased by 600-1000%. however, this is at the expense of quite large losses in elastic modulus of 10-25% and tensile yield strength of 30-55%, especially at high core/shell rubber loading (e.g., 30 wt%). in this study, we have redressed this problem by replacing the ldpe core with a polypropylene (pp) core, which has both higher elastic modulus and yield strength than that of ldpe, forming a new core/shell (pp/pb-g-mah) toughener. when this core/shell toughener containing 5 wt% pb-g-mah is blended with pa6 in the weight ratios of 10/90 and 30/70, the izod impact strengths are 390 and 480 j m(-1) (which are 330 and 550% increases compared to neat pa6), and the modulus are 2.37 and 2.13 gpa, and yield strength are 60.2 and 54 mpa, respectively (which represent only 6 and 15% loss of modulus, and 5 and 13% decrease in yield strength relative to neat pa6). these improved results confirm that although the decrease of tensile modulus cannot be avoided with increasing impact strength, increasing the elastic modulus and yield strength of the core material in the rigid core/soft rubber shell toughener is an effective way to obtain a good balance of elastic modulus, tensile yield strength and impact strength.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000326056600068
公开日期	2014-04-16
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/50156]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Shi DA,Liu EW,Tan TY,et al. Core/shell rubber toughened polyamide 6: an effective way to get good balance between toughness and yield strength[J]. rsc advances,2013,3(44):21563-21569.
APA	Shi DA.,Liu EW.,Tan TY.,Shi HC.,Jiang T.,...&Li RKY.(2013).Core/shell rubber toughened polyamide 6: an effective way to get good balance between toughness and yield strength.rsc advances,3(44),21563-21569.
MLA	Shi DA,et al."Core/shell rubber toughened polyamide 6: an effective way to get good balance between toughness and yield strength".rsc advances 3.44(2013):21563-21569.