Improved output force response speed of the biological gel artificial muscle prepared from carboxylated chitosan and sodium carboxymethyl cellulose

Abstract

A high response speed biological gel artificial muscle (BGAM) with a networked pore structure is proposed. The BGAM is prepared from carboxylated chitosan and sodium carboxymethyl cellulose. For the given parameters including the driving voltage and the size of the BGAM, the response speed of the BGAM in this paper is 15 times faster than the BGAM in the existing research. The best result on the response speed of 0.115 mN/s is obtained, the porosity is 18.5%, the elastic modulus is 2.73 MPa, the specific capacitance is 0.23mF/cm². This BGAM, prepared by cross-linking natural polymers, is biocompatible and degradable.

Keywords:

• Biological gel artificial muscle
• carboxylated chitosan
• sodium carboxymethyl cellulose
• response speed
• crosslinking mass ratio

Disclosure statement

The authors declare no conflicts of interest.

Data availability

The data that supports the findings of this study are available within the article.

Additional information

Funding

This project is supported by National Natural Science Foundation of China (Grant No. 51505077), Project Agreement for Science and Technology Development of Jilin Province (JJKH20200105KJ), and Science and Technology Innovation Development Project of Jilin City (201750230, 20166013, 20166012).