Hollow Casein-Based Polymeric Nanospheres for Opaque Coatings
Hollow Casein-Based Polymeric Nanospheres for Opaque Coatings
复制标题
用于不透明涂料的空心酪蛋白基聚合物纳米球
DOI：
10.1021/acsami.6b00611
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发表时间：
2016
影响因子：
9.5
通讯作者：
Li Yunqi
中科院分区：
文献类型：
--
作者：
Zhang Fan;Ma Jianzhong;Xu Qunna;Zhou Jianhua;Simion Demetra;Carmen Gaidau;Wang John;Li Yunqi
采用无乳化剂聚合-碱膨胀法制备了酪蛋白基中空聚合物球。通过透射电镜（TEM）、原子力显微镜（AFM）、扫描电镜（SEM）和紫外可见光谱（UV-vis）对酪蛋白基聚合物球的中空结构和纳米尺寸进行了验证。结果表明，所得空心球具有较好的不透明特性。通过调整球膜的结构参数，如MAA用量和种子到芯的MAA含量，球膜具有可调的可见光透过率和抗紫外线性能。对酪蛋白基空心球的形成机理进行了深入的探讨。值得一提的是，由此产生的中空聚合物球可以在室温下很容易地形成薄膜，这将为在皮革、包装、造纸、生物医学和特殊室内涂料等多个领域设计不透明涂料开辟新的可能性。
Casein-based hollow polymeric sphere were fabricated through emulsifier-free polymerization coupled with alkali swelling approach. Hollow structure and nanoscale size of casein-based polymeric spheres were verified by TEM, AFM, SEM, and UV–vis spectra. The as-obtained hollow spheres were proved exhibiting superior opaque characteristic. Through adjusting the structural parameters, for example, MAA usages and MAA content in seed to core, sphere film showed tunable visible-light transmittance and antiultraviolet property. The formation mechanism of casein-based hollow sphere has been discussed in depth. Worth mentioning, the resultant hollow polymeric sphere can easily form films itself at room temperature, which would open a new possibility of designing opaque coatings in several fields, such as leather, packaging, paper making, biomedical, and special indoor coating applications.