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Preparation method of calcium chloride cross-linked sodium alginate electrically-driven film

A technology of sodium alginate and electric drive membrane, applied in the field of preparation of sodium alginate electric drive membrane, can solve the problems of poor output stability of IPMC, low molecular weight of chitosan, poor solubility, etc., achieves convenient operation, improves comprehensive Performance, simple effect of experimental equipment

Active Publication Date: 2018-01-23
HARBIN ENG UNIV
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Problems solved by technology

At present, IPMC and chitosan are mainly used as the driving membrane materials in gel polymer electric actuators, but IPMC has poor output stability and low life, and chitosan has low molecular weight and poor solubility. Membrane applications are relatively limited

Method used

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  • Preparation method of calcium chloride cross-linked sodium alginate electrically-driven film

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Embodiment Construction

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] combine figure 1 , a method for preparing a calcium chloride crosslinked sodium alginate electrically driven membrane of the present invention, characterized in comprising the following processes:

[0020] Sodium alginate and calcium chloride are used for cross-linking reaction according to a certain molar ratio, then glycerin is added as a modifier, and the resulting solution is subjected to ultrasonic degassing and vacuum drying to generate calcium chloride cross-linked sodium alginate electric drive film at one time , including three steps of liquid-phase cross-linking reaction, ultrasonic defoaming treatment and high-temperature drying.

[0021] (1) Liquid phase cross-linking reaction: put 1.5g sodium alginate into 50mL distilled water and place it in a water bath to heat, and stir with a magnetic stirrer to fully dissolve...

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Abstract

The invention provides a preparation method of a calcium chloride cross-linked sodium alginate electrically-driven film. Sodium alginate and calcium chloride are subjected to cross-linking reaction according to certain mole ratio, then glycerinum is added to serve as a modifier, produced solution is subjected to ultrasonic defoaming and vacuum drying treatment and then produces the calcium chloride cross-linked sodium alginate electrically-driven film at one step. The method comprises steps of liquid phase cross-linking reaction, ultrasonic defoaming treatment and high-temperature drying. Themethod is green and environmentally friendly, low in cost, simple in steps, and suitable for large-scale production, ensures that the produced sodium alginate electrically-driven film can replace thetraditional driving structure in the field of flexible machinery and has good tensile strength and flexibility.

Description

technical field [0001] The invention relates to a preparation method of a sodium alginate electric driving membrane, in particular to a preparation method of a calcium chloride crosslinked sodium alginate electric driving membrane. Background technique [0002] As a kind of ion actuator, gel polymer actuator has become a hot research issue due to its advantages of low cost and simple preparation process. At present, IPMC and chitosan are mainly used as driving membrane materials in gel polymer electric actuators. However, IPMC has poor output stability, low life, and chitosan has low molecular weight and poor solubility. The application of membranes is relatively limited. Sodium alginate is a high-molecular polysaccharide extracted from brown algae plants. It has good safety and reproducibility. The prepared sodium alginate solution has good film-forming properties, and the formed film has good flexibility and high transparency. Calcium chloride, as a cross-linking agent, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08J3/24C08J3/28C08L5/04C08K3/16
Inventor 付裕赵刚姚建均王志杰杨俊杰吴昱达韦成业喻淑琴刘亚立张光丽
Owner HARBIN ENG UNIV
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