Effect of morphology on the brittle ductile transition of polymer blends: 4. Influence of the rubber particle spatial distribution in poly(vinyl chloride) nitrile rubber blends

CORC > 化学研究所 > 中国科学院化学研究所

	Effect of morphology on the brittle ductile transition of polymer blends: 4. Influence of the rubber particle spatial distribution in poly(vinyl chloride) nitrile rubber blends
	Liu, ZH ; Zhang, XD ; Zhu, XG ; Li, RKY ; Qi, ZN ; Wang, FS ; Choy, CL
刊名	POLYMER
	1998-10-01
卷号	39 期号:21 页码:5035-5045
关键词	Rubber Particle Spatial Distribution Brittle Ductile Transition Rubber Toughened Poly(Vinyl Chloride)
ISSN号	0032-3861
英文摘要	We have derived a new equation for correlating the average matrix ligament thickness with other morphological parameters of a polymer blend with the pseudonetwork morphology in order to evaluate the effect of rubber particle spatial distribution on the brittle ductile transition of poly(vinyl chloride) (PVC)/nitrile rubber (NBR) blends. Two types of rubber particle spatial distributions, i.e. well-dispersed particles and pseudonetwork, are investigated. The formation of PVC primary particles favours the toughening of PVC. An approximate master curve of brittle ductile transition for the blends with the pseudonetwork morphology is obtained by plotting the impact strength, versus the average matrix ligament thickness. The critical matrix ligament thickness for the blends with the pseudonetwork morphology is 0.11 mu m, which is much larger than that (0.059 mu m) for the blends with the morphology of well-dispersed rubber particles. Therefore, pseudonetwork morphology is much more effective in toughening PVC than the morphology of well-dispersed rubber particles. Moreover, the critical matrix ligament thickness depends on the rubber particle spatial distribution, and is thus not a characteristic of the PVC matrix. The effects of morphological parameters and PVC molecular weight on the toughness of PVC/NBR blends are discussed. (C) 1998 Elsevier Science Ltd. All rights reserved.
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000075216800007
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/74239]
专题	中国科学院化学研究所
通讯作者	Qi, ZN
作者单位	1.Chinese Acad Sci, Inst Chem, State Key Lab Engn Plast, Beijing 100080, Peoples R China 2.City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong 3.Hong Kong Polytech Univ, Dept Appl Phys, Kowloon, Hong Kong
推荐引用方式 GB/T 7714	Liu, ZH,Zhang, XD,Zhu, XG,et al. Effect of morphology on the brittle ductile transition of polymer blends: 4. Influence of the rubber particle spatial distribution in poly(vinyl chloride) nitrile rubber blends[J]. POLYMER,1998,39(21):5035-5045.
APA	Liu, ZH.,Zhang, XD.,Zhu, XG.,Li, RKY.,Qi, ZN.,...&Choy, CL.(1998).Effect of morphology on the brittle ductile transition of polymer blends: 4. Influence of the rubber particle spatial distribution in poly(vinyl chloride) nitrile rubber blends.POLYMER,39(21),5035-5045.
MLA	Liu, ZH,et al."Effect of morphology on the brittle ductile transition of polymer blends: 4. Influence of the rubber particle spatial distribution in poly(vinyl chloride) nitrile rubber blends".POLYMER 39.21(1998):5035-5045.