Title:
PREPARATION METHOD AND APPARATUS FOR SINGLE-DOMAIN LIQUID CRYSTAL ELASTOMER INTELLIGENT FIBERS
Document Type and Number:
WIPO Patent Application WO/2023/133947
Kind Code:
A1
Abstract:
A preparation method and apparatus for single-domain liquid crystal elastomer intelligent fibers. The method comprises: during the cross-linking process of a liquid crystal elastomer, when the viscosity of a cross-linked polymer solution is increased to the point where the solution may be drawn, a liquid crystal elastomer fiber which has a uniform diameter is pulled out from the polymer solution in a pulling mode, undergoes infrared heating to preliminarily remove part of a solvent to form a filamentous liquid crystal elastomer fiber, undergoes natural air drying to remove excess solvent in the fiber, and is stretched and collected again, and laid to then obtain a single-domain liquid crystal elastomer intelligent fiber. According to the method, a mode for obtaining single-domain liquid crystal elastomer intelligent fibers by using a liquid-phase drawing one-step method is provided, and the preparation method is simple, is suitable for large-scale industrial production, may implement the continuous preparation of high-strength and large deformation reversible-shape memory liquid crystal elastomer intelligent fibers which have uniform and controllable diameters, and makes advancements with respect to limitations on the dimensions, strength and driving performance of existing liquid crystal elastomers.
Inventors:
YUAN NINGYI (CN)
DONG XU (CN)
LI LVZHOU (CN)
DING JIANNING (CN)
ZHOU XIAOSHUANG (CN)
JIANG YAOYAO (CN)
DONG XU (CN)
LI LVZHOU (CN)
DING JIANNING (CN)
ZHOU XIAOSHUANG (CN)
JIANG YAOYAO (CN)
Application Number:
PCT/CN2022/074202
Publication Date:
July 20, 2023
Filing Date:
January 27, 2022
Export Citation:
Assignee:
UNIV CHANGZHOU (CN)
UNIV YANGZHOU (CN)
YANGZHOU TECHNOLOGY INNOVATION RESEARCH CENTER FOR CARBON NEUTRALITY OF YANGZHOU UNIV (CN)
UNIV YANGZHOU (CN)
YANGZHOU TECHNOLOGY INNOVATION RESEARCH CENTER FOR CARBON NEUTRALITY OF YANGZHOU UNIV (CN)
International Classes:
D01F6/94; D01D5/14; D01D10/06; D01F1/09
Foreign References:
| CN110330589A | 2019-10-15 | |||
| CN113802209A | 2021-12-17 | |||
| CN113773543A | 2021-12-10 | |||
| US20110049768A1 | 2011-03-03 |
Attorney, Agent or Firm:
CENTRAL SOUTH WELL INTELLECTUAL PROPERTY OFFICE. (CN)
Download PDF: