由聚合物水凝胶剂和纳米片组成的新型复合触变水凝胶。

Ohsedo Yutaka, Oono Masashi, Saruhashi Kowichiro, Watanabe Hisayuki, Miyamoto Nobuyoshi

Department of Life, Environment and Materials Science, Fukuoka Institute of Technology, 3-30-1, Wajiro-Higashi, Higashi-ku, Fukuoka 811-0295, Japan.

Comprehensive Research Organization, Fukuoka Institute of Technology, 3-30-1, Wajiro-Higashi, Higashi-ku, Fukuoka 811-0295, Japan.

R Soc Open Sci. 2017 Dec 13;4(12):171117. doi: 10.1098/rsos.171117. eCollection 2017 Dec.

A composite gel composed of a water-soluble aromatic polyamide hydrogelator and the nanosheet Laponite®, a synthetic layered silicate, was produced and found to exhibit thixotropic behaviour. Whereas the composite gel contains the gelator at the same concentration as the molecular gel made by the gelator only, the composite gel becomes a softer thixotropic gel compared to the molecular gel made by the gelator only. The reason for this could be that bundles of polymer gelator may be loosened and the density of the polymer network increased in the presence of Laponite.

制备了一种由水溶性芳香族聚酰胺水凝胶剂和纳米片锂蒙脱石（一种合成层状硅酸盐）组成的复合凝胶，发现其具有触变性。尽管复合凝胶中凝胶剂的浓度与仅由凝胶剂制成的分子凝胶中的浓度相同，但与仅由凝胶剂制成的分子凝胶相比，复合凝胶变成了一种更软的触变凝胶。其原因可能是在锂蒙脱石存在下，聚合物凝胶剂束可能会松弛，聚合物网络的密度会增加。