Enhanced swelling ratio and water retention capacity for novel super-absorbent hydrogel

肿胀 的 保水性 自愈水凝胶 吸附 化学 单体 聚合 化学工程 聚合物 环境科学 高分子化学 有机化学 土壤科学 土壤水分 工程类
作者
Qingyun Lv,Min Wu,Yong Shen
出处
期刊:Colloids and Surfaces A: Physicochemical and Engineering Aspects [Elsevier BV]
卷期号:583: 123972-123972 被引量:103
标识
DOI:10.1016/j.colsurfa.2019.123972
摘要

Super-absorbent hydrogels (SAH) have become the focus of attention due to their broadly applications in many areas like agriculture, wastewater treatment and hygienic products. Swelling ratio (SR), swelling rate and water retention capacity are the three most key parameters for SAHs. However, SR is commonly opposite to water retention capability. High SR usually means poor water retention capacity, and vice versa. High SR over 2000 g/g along with excellent water retention capacity for SAH is rarely reported so far. In this work, a novel SAH achieving high SR over 5500 g/g along with excellent water retention capability is obtained by co-polymerization of AA monomer and AM monomer. Particularly, water retention ratio (WRR) still remains over 60% after keeping the swollen hydrogel sample in the open air for 3 days at 298 K with humidity only around 40%, indicating its' excellent water retention capability. Furthermore, in 0.5–20 wt% urea water solution, SR is also high up to 1790–3210 g/g, implying its' excellent water absorbency in urea solution. Additionally, such SAH sample also shows good water absorbing behavior in salt solution including 0.9 wt% NaCl and 0.9 wt% KCl, and even this SAH sample displays excellent adsorption performance for removing methylene blue (MB) dye with the maximal adsorption capacity of 856 mg/g. This work open a new way to design and develop novel SAH with significantly improved swelling ratio and water retention capability for many potential applications.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
爱听歌的树叶完成签到,获得积分10
刚刚
1秒前
不宁不令完成签到,获得积分10
2秒前
圆滚滚完成签到,获得积分10
3秒前
4秒前
唐_完成签到,获得积分10
5秒前
桐桐应助彳亍而行采纳,获得10
5秒前
6秒前
qiqi发布了新的文献求助10
6秒前
7秒前
JUdy完成签到,获得积分10
8秒前
lll完成签到,获得积分10
9秒前
9秒前
9秒前
小艾完成签到,获得积分10
10秒前
英姑应助含糊采纳,获得10
10秒前
柒月小鱼完成签到 ,获得积分10
10秒前
奋斗雁山发布了新的文献求助10
10秒前
10秒前
11秒前
这样很OK发布了新的文献求助10
11秒前
tay完成签到,获得积分20
14秒前
韦谷兰发布了新的文献求助10
15秒前
QQQ发布了新的文献求助10
15秒前
Bio应助哈哈采纳,获得30
15秒前
16秒前
16秒前
kkmedici发布了新的文献求助30
16秒前
叮咚完成签到,获得积分10
17秒前
不想完成签到,获得积分10
17秒前
这样很OK完成签到,获得积分10
18秒前
GXWFDC完成签到,获得积分10
18秒前
西瓜汁完成签到,获得积分10
18秒前
Lisa完成签到,获得积分20
19秒前
含糊发布了新的文献求助10
20秒前
QQQ完成签到,获得积分10
20秒前
20秒前
21秒前
22秒前
情怀应助QQQ采纳,获得10
23秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3988838
求助须知:如何正确求助?哪些是违规求助? 3531250
关于积分的说明 11252914
捐赠科研通 3269838
什么是DOI,文献DOI怎么找? 1804820
邀请新用户注册赠送积分活动 881943
科研通“疑难数据库(出版商)”最低求助积分说明 809028