Research and Development of Long Chain Poly(amide-co-ether) Elastic Fibers and the Corresponding Elastic Mechanism

	Research and Development of Long Chain Poly(amide-co-ether) Elastic Fibers and the Corresponding Elastic Mechanism
	Wang, Li-li 1,2; Dong, Xia 1,2; Zhu, Ping .1,2; Zhang, Xiu-qin 3; Wang, Du-jin 1,2
刊名	ACTA POLYMERICA SINICA
	2017-05-20
期号	5 页码:752-760
关键词	Long Chain Poly(Amide-ether) (Lpae) Elastomer Elastic Fiber Spandex Super Elasticity Mechanism
英文摘要	To develop elastic fibers with high performance, long chain poly(amide-co-ether) (LPAE) elastic fiber was prepared by melt spinning based on the long chain polyamide (LCPA) elastomer. The elastomer contained LCPA as hard segment, which was produced from bio-fermenting source and features by lower water absorption, better dimensional stability and excellent mechanical properties, and polyether as the soft segment with easy conformation change. The corresponding elasticity was effectively regulated by varying the ratio of hard/soft segments. The stretching tests results confirmed that these LPAE fibers with higher fraction of soft segment represented higher elongation and lower initial modulus, compared with the commercially used LYCRA. The cyclic tensile loading measurements revealed that the corresponding elastic recovery rate was almost equal to that of LYCRA when the strain was less than 200%. Moreover, LPAE fibers favored better thermo-stability than LYCRA, verified by higher onset degradation temperature. It also offered some advantages of LCPA, such as better wear resistance, oil or solvent resistance and absorbency to skin with the amide groups. The super elasticity of the LPAE fiber may be well originated from the dual effect that the polyamide hard segments served as the physical crosslinking point due to their strong hydrogen bonding interaction and high crystallinity, and that the polyether soft segments largely deformed due to their better flexibility. The three dimensional network was created this way by alternative hard and soft segments in the polymer chains. At large strain, the strain-induced crystallization definitely occurred, as indicated by enhanced melting enthalpy, which was especially pronounced in the soft segments. Therefore, both the slippage of the molecular chain and newly formed crystals from strain-induced crystallization predominately contributed to the reduced elastic recovery. Based on the current results, it is expected that spandex can be partially replaced with the LPAE fiber in practice.
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/38493]
专题	化学研究所_工程塑料实验室
作者单位	1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, CAS Key Lab Engn Plast, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Beijing Inst Fash Technol, Sch Mat Sci & Engn, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Wang, Li-li,Dong, Xia,Zhu, Ping .,et al. Research and Development of Long Chain Poly(amide-co-ether) Elastic Fibers and the Corresponding Elastic Mechanism[J]. ACTA POLYMERICA SINICA,2017(5):752-760.
APA	Wang, Li-li,Dong, Xia,Zhu, Ping .,Zhang, Xiu-qin,&Wang, Du-jin.(2017).Research and Development of Long Chain Poly(amide-co-ether) Elastic Fibers and the Corresponding Elastic Mechanism.ACTA POLYMERICA SINICA(5),752-760.
MLA	Wang, Li-li,et al."Research and Development of Long Chain Poly(amide-co-ether) Elastic Fibers and the Corresponding Elastic Mechanism".ACTA POLYMERICA SINICA .5(2017):752-760.