35results about How to "Controllable heating" patented technology

The present application relates to a kind of electric heating type liquid crystal elastomer artificial muscle and its preparation method, belong to intelligent polymer material technical field, solve the technical problem that weak deformation capacity of liquid crystal elastomer artificial muscle filler in prior art is too much to be hard and brittle easily.The electric heating type liquid crystal elastomer artificial muscle of the present application includes two layers of liquid crystal elastomer film and electric heating element;Electric heating element is set between two layers of liquid crystal elastomer film;The raw material of liquid crystal elastomer film includes liquid crystal base element, chain extender, crosslinking agent and catalyst;Wherein, liquid crystal base element is 1,4- Bis-[4-(3-acryloyloxy propoxy) benzoyloxy]-2-methyl benzene.The joule heat generated by electric heating element can activate liquid crystal elastomer, and will not limit the deformation of liquid crystal elastomer, so as to show the characteristics such as strong deformation ability, controllable heating mode and time, programmable drive;Also have self-sensing function, can be monitored and regulated shape change in real time according to the size of resistance.