The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 21, 2023
Filed:
Nov. 05, 2020
Jiangsu University, Suzhou, CN;
Shu Huang, Jiangsu, CN;
Hang Zhang, Jiangsu, CN;
Mingyuan Shan, Jiangsu, CN;
Jie Sheng, Jiangsu, CN;
Jinzhong Lu, Jiangsu, CN;
Jianzhong Zhou, Jiangsu, CN;
Jiean Wei, Jiangsu, CN;
Shuangliu Zhou, Jiangsu, CN;
Wei Xu, Jiangsu, CN;
Jiangsu University, Jiangsu, CN;
Abstract
The present invention relates to the field of 4D printing, and particularly to an electro-responsive folding and unfolding composite material for 4D printing, a method for manufacturing the same, and a method for regulating shape memory behavior thereof. In the process of layer-by-layer printing, conductive layers are embedded into a pre-designed shape memory polymer matrix through spray-coating and laser-irradiation nano-fusion welding, to manufacture a folding and unfolding structure with electro-responsive shape memory behavior. The distribution and range of heat affected zones in the electro-responsive shape memory folding and unfolding structure are controlled by adjusting the number of electric heating layers energized and the value of an energizing voltage. The speed of shape recovery and the degree of shape recovery of the structure are regulated according to a magnitude relationship between a shape recovery force Fand a resistance Fto shape recovery of the structure.