Miscibility and crystallization behavior of PBT/epoxy blends

doi:10.1002/polb.20785

CORC > 化学研究所 > 中国科学院化学研究所

	Miscibility and crystallization behavior of PBT/epoxy blends
	Zhang, HL; Ren, MQ; Chen, QY; Sun, SL; Sun, XH; Zhang, HX; Mo, ZS
刊名	JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
	2006-05-01
卷号	44 期号:9 页码:1320-1330
关键词	Differential Scanning Calorimetry (Dsc) Epoxy Resin Isothermal Crystallization Kinetics Poly(Butylene Terephthalate)
ISSN号	0887-6266
DOI	10.1002/polb.20785
英文摘要	The miscibility and the isothermal crystallization kinetics for PBT/Epoxy blends have been studied by using differential scanning calorimetry, and several kinetic analyses have been used to describe the crystallization process. The Avrami exponents n were obtained for PBT/Epoxy blends. An addition of small amount of epoxy resin (3%) leads to an increase in the number of effective nuclei, thus resulting in an increase in crystallization rate and a stronger trend of instantaneous three-dimensional growth. For isothermal crystallization, crystallization parameter analysis showed that epoxy particles could act as effective nucleating agents, accelerating the crystallization of PBT component in the PBT/Epoxy blends. The Lauritzen-Hoffman equation for DSC isothermal crystallization data revealed that PBT/Epoxy 97/3 had lower nucleation constant K, than 100/0, 93/7, and 90/10 PBT/Epoxy blends. Analysis of the crystallization data of PBT/Epoxy blends showed that crystallization occurs in regime II. The fold surface free energy, sigma(e) = 101.7-58.0 x 10(-3) J/m(2), and work of chain folding, q = 5.79-3.30 kcal/mol, were determined. The equilibrium melting point depressions of PBT/Epoxy blends were observed and the Flory-Huggins interaction parameters were obtained. It indicated that these blends were thermodynamically miscible in the melt. (c) 2006 Wiley Periodicals, Inc.
语种	英语
出版者	JOHN WILEY & SONS INC
WOS记录号	WOS:000236860600004
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/58415]
专题	中国科学院化学研究所
通讯作者	Mo, ZS
作者单位	Chinese Acad Sci, Changchun Inst Appl Chem, Grad Sch, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
推荐引用方式 GB/T 7714	Zhang, HL,Ren, MQ,Chen, QY,et al. Miscibility and crystallization behavior of PBT/epoxy blends[J]. JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,2006,44(9):1320-1330.
APA	Zhang, HL.,Ren, MQ.,Chen, QY.,Sun, SL.,Sun, XH.,...&Mo, ZS.(2006).Miscibility and crystallization behavior of PBT/epoxy blends.JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,44(9),1320-1330.
MLA	Zhang, HL,et al."Miscibility and crystallization behavior of PBT/epoxy blends".JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS 44.9(2006):1320-1330.