%0 Journal Article
%T Self-adaptive control of smart hydrogels to water flow<br>智能凝胶对水流量自适应控制的仿生研究
%A ZENG You
%A WANG Ruichun
%A GUO Jingdong
%A ZHOU Benlian
%A <br>曾尤
%A 王瑞春
%A 郭敬东
%A 周本濂
%J 材料研究学报
%D 2005
%I 
%X Inspiration is from the plant root adjusting self-adaptively its structure and function according to the change of water content in soil; a macroporous polyvinyl formal hydrogel (PVFM) with water-content sensitivity was synthesized, and utilized as sensor and actuator to control automatically the drip-irrigation flow. PVFM hydrogel shows rather fast swelling/deswelling rate, and its mechanical behavior is sensitive to the change of water content, as a result the flow rate is modulated accordingly. This smart hydrogel can control self-adaptively water flow according to humidity of soil; the on-off cycle of flow control is less than 1 hour. It has the large potential applications in the aired regions for water-saving irrigation, humidity adjustment, desert control and so on.
%K organic polymer materials
%K smart hydrogels
%K flow control
%K intelligent material
%K drip irrigation
%K biomimetics<br>有机高分子材料
%K 智能凝胶
%K 自适应
%K 流量控制
%K 滴灌
%K 仿生
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=C101C4C04993B4D94FCD8446E6CBEB3B&aid=29520BC570CAEF57&yid=2DD7160C83D0ACED&vid=2A8D03AD8076A2E3&iid=CA4FD0336C81A37A&sid=ECE8E54D6034F642&eid=D997634CFE9B6321&journal_id=1005-3093&journal_name=材料研究学报&referenced_num=0&reference_num=13