Reinforcement of polyacrylamide hydrogel with patched laponite-polymer composite particles
Reinforcement of polyacrylamide hydrogel with patched laponite-polymer composite particles
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DOI：
10.1016/j.colsurfa.2017.06.005
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发表时间：
2017-09
期刊：
影响因子：
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通讯作者：
Fengyuan Yan;Xinping Zhang;Huihui Ren;Xiaohui Meng;D. Qiu
中科院分区：
文献类型：
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作者：
Fengyuan Yan;Xinping Zhang;Huihui Ren;Xiaohui Meng;D. Qiu
提出了将补丁的膨润土-聚合物复合粒子(LCPs)应用于水凝胶增强中，并成功地制备了这种水凝胶(LC水凝胶)。通过表面C-双键C基团的共聚，可以在水凝胶基质中很好地分散到较高的颗粒浓度，同时与聚合物基质形成化学键。在相同颗粒含量下，与未修饰或表面修饰了C双键C基团的凝胶相比，所得到的LC水凝胶具有更均匀的微观结构和更高的机械强度。一系列对照实验表明，表面化学成分和补丁形态是产生如此良好的增强性能的关键。
The application of patched laponite-polymer composite particles (LCPs) in hydrogel reinforcement has been proposed and such hydrogels (LC hydrogels) were successfully prepared. LCPs can be well dispersed in hydrogel matrix to rather high particle concentration and at the same time, form chemical bonding with polymer matrix through copolymerization of surface Cdouble bondC groups. The obtained LC hydrogels showed more homogeneous microstructure and significantly higher mechanical strength comparing with the hydrogel containing bare laponite or laponite surface modified with Cdouble bondC groups at same particle content. A series of control experiments reveals that both the surface chemistry and patched morphology were essential to produce such good reinforcement performance.