High-Strength, Tough, Fatigue Resistant, and Self-Healing Hydrogel Based on Dual Physically Cross-Linked Network

	High-Strength, Tough, Fatigue Resistant, and Self-Healing Hydrogel Based on Dual Physically Cross-Linked Network
	Zhengyu Gong; Guoping Zhang; Xiaoliang Zeng; Jinhui Li; Gang Li; Wangping Huang; Rong Sun; Chingping Wong
刊名	ACS Applied Materials & Interfaces
	2016
英文摘要	Hydrogels usually suffer from low mechanical strength, which largely limit their application in many fields. In this Research Article, we prepared a dual physically cross-linked hydrogel composed of poly(acrylamide-co-acrylic acid) (PAM-co-PAA) and poly(vinyl alcohol) (PVA) by simple two-steps methods of copolymerization and freezing/thawing. The hydrogen bond-associated entanglement of copolymer chains formed as cross-linking points to construct the first network. After being subjected to the freezing/thawing treatment, PVA crystalline domains were formed to serve as knots of the second network. The hydrogels were demonstrated to integrate strength and toughness (1230 ± 90 kPa and 1250 ± 50 kJ/m3) by the introduction of second physically cross-linked network. What̀s more, the hydrogels exhibited rapid recovery, excellent fatigue resistance, and self-healing property. The dynamic property of the dual physically cross-linked network contributes to the excellent energy dissipation and self-healing property. Therefore, this work provides a new route to understand the toughness mechanism of dual physically cross-linked hydrogels, hopefully promoting current hydrogel research and expanding their applications.
收录类别	SCI
原文出处	http://pubs.acs.org/doi/abs/10.1021/acsami.6b05627
语种	英语
内容类型	期刊论文
源URL	[http://ir.siat.ac.cn:8080/handle/172644/9877]
专题	深圳先进技术研究院_集成所
作者单位	ACS Applied Materials & Interfaces
推荐引用方式 GB/T 7714	Zhengyu Gong,Guoping Zhang,Xiaoliang Zeng,et al. High-Strength, Tough, Fatigue Resistant, and Self-Healing Hydrogel Based on Dual Physically Cross-Linked Network[J]. ACS Applied Materials & Interfaces,2016.
APA	Zhengyu Gong.,Guoping Zhang.,Xiaoliang Zeng.,Jinhui Li.,Gang Li.,...&Chingping Wong.(2016).High-Strength, Tough, Fatigue Resistant, and Self-Healing Hydrogel Based on Dual Physically Cross-Linked Network.ACS Applied Materials & Interfaces.
MLA	Zhengyu Gong,et al."High-Strength, Tough, Fatigue Resistant, and Self-Healing Hydrogel Based on Dual Physically Cross-Linked Network".ACS Applied Materials & Interfaces (2016).