自愈水凝胶
材料科学
聚丙烯酸
混合材料
碳酸钙
丙烯酸
热致变色
无定形固体
原材料
聚合物
环境友好型
化学工程
纳米技术
复合材料
化学
有机化学
高分子化学
共聚物
工程类
生物
生态学
作者
Shengtong Sun,Li‐Bo Mao,Zhouyue Lei,Shu‐Hong Yu,Helmut Cölfen
标识
DOI:10.1002/anie.201602849
摘要
Given increasing environmental issues due to the large usage of non-biodegradable plastics based on petroleum, new plastic materials, which are economic, environmentally friendly, and recyclable are in high demand. One feasible strategy is the bio-inspired synthesis of mineral-based hybrid materials. Herein we report a facile route for an amorphous CaCO3 (ACC)-based hydrogel consisting of very small ACC nanoparticles physically cross-linked by poly(acrylic acid). The hydrogel is shapeable, stretchable, and self-healable. Upon drying, the hydrogel forms free-standing, rigid, and transparent objects with remarkable mechanical performance. By swelling in water, the material can completely recover the initial hydrogel state. As a matrix, thermochromism can also be easily introduced. The present hybrid hydrogel may represent a new class of plastic materials, the "mineral plastics".
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