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Polyaniline composite liquid, nuclear layer atomized spray liquid, artificial bionic skin and preparation method

A technology of polyaniline and composite fluid, which is applied in the fields of skin transplantation, prosthesis, medical science, etc. It can solve the problems that artificial skin does not have piezoelectric sensing effect, and it is difficult to realize the seamless connection and coating of three-dimensional objects and joints. Achieve a soft touch effect

Active Publication Date: 2022-05-03
合肥柔性科天机器人材料有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art that the artificial skin does not have the piezoelectric sensing effect and that it is difficult to realize the seamless connection and coating of three-dimensional objects and joints, and to provide a water-soluble polyaniline Composite liquid and preparation method thereof, nuclear layer atomized spray liquid prepared from water-soluble polyaniline compound liquid, artificial bionic skin prepared from nuclear layer atomized spray liquid and preparation method

Method used

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Examples

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preparation example Construction

[0036] In the preparation of alcohol-soluble cationic fluorinated polyurethane, the preferred types of each raw material are as follows:

[0037] The biocompatible polyol is a combination of polyether polyol, polyester polyol and polylactic acid polyol, and the mass ratio is (30-50):(50-100):(15-50).

[0038] The polyether polyol is one of polyoxyethylene glycol, polytetrahydrofuran ether glycol, soybean oil polyether polyol, palm oil polyether polyol, castor oil polyether polyol, Mannich polyether glycol or A combination of two or more; the polyester polyol is polycaprolactone diol, polylactide-co-caprolactone polyol, polyε-caprolactone polyether polyol, polypropylene carbonate One of polyols or a combination of two or more; the polylactic acid polyol is a biodegradable polyol soft segment.

[0039] The isocyanate is an aliphatic polyisocyanate, specifically including isophorone diisocyanate, dicyclohexylmethane diisocyanate, 1,6 hexyl diisocyanate, tetramethylcyclohexylmeth...

Embodiment 1

[0052] The invention provides a method for preparing shell layer atomized spray liquid, which specifically includes:

[0053] S1. Synthesis of alcohol-soluble high-molecular-weight cationic fluorinated polyurethane: firstly, 35 parts of polyoxyethylene diol, 60 parts of polycaprolactone diol, and 25 parts of polylactic acid polyol were vacuum dehydrated at 90-105°C for 1-1.5 h; then lower the temperature to 45-55°C, and add 85 parts of isophorone diisocyanate weighed, and raise the temperature to 90°C and keep it warm for 3 hours to fully react. After testing that the remaining NCO groups reach the theoretical remaining value, lower the temperature to At 60°C, add 7 parts of fluorinated small molecule monohydric alcohol, 6 parts of fluorinated diol, 6 parts of N-methyldiethanolamine, 10 parts of polydimethylsiloxane, and 3 parts of bismuth carboxylate catalyst and continue to keep warm React for 3 hours and pass protective gas during the reaction. After the reaction reaches th...

Embodiment 2

[0056] The present invention provides a kind of preparation method of nuclear layer atomization spray liquid, specifically comprises:

[0057] S1. Prepare a water-soluble polyaniline composite solution, and quote conductive nano-media: add polymeric acid and aniline to distilled water respectively, the molar ratio of the polymeric acid, aniline, and distilled water is 1.5:1:5, and in the mixed system Nitrogen was introduced into the system for 30 minutes to remove dissolved oxygen in the system; then it was placed at 5°C for 4 hours of insulated reaction, and then a 2 mmol / L ammonium persulfate aqueous solution was added dropwise using a dropping funnel, and the molar ratio of ammonium persulfate to aniline was 1: 1. The dropping time is controlled at 1.5h. After the dropping is completed, continue to react for 8h to obtain an acid-doped polyaniline aqueous solution; then weigh 50 parts of the polyaniline solution and add 3 parts of multi-walled carbon nanotubes and 2 parts of ...

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Abstract

The invention belongs to the field of water-based polymer functional materials, and specifically relates to a water-soluble polyaniline compound liquid, a nuclear layer atomized spray liquid, artificial bionic skin and a preparation method. The polyaniline composite liquid is synthesized by polymer acid doping, which transmits the dielectric signal of the nuclear layer as a network path, and endows the skin layer with piezoelectric sensing effect; Layer atomized spray liquid is made of artificial bionic skin through core-shell electrostatic atomization technology. The three-dimensional object is sprayed at any angle, which realizes the coating of the robot's three-dimensional mechanical structure and joints, and can be applied to the repair of medical wound skin. At the same time, the excellent electrical conductivity of the nuclear layer allows it to be directly sprayed on the human heart or wrist, and it can be used for the later robot skin. It provides the possibility of electrical signal transmission or human heartbeat monitoring for medical applications.

Description

technical field [0001] The invention belongs to the field of synthesis and preparation of water-based polymer functional materials, and more specifically relates to a water-soluble polyaniline composite liquid and a preparation method thereof, a nuclear layer atomized spray liquid prepared from a water-soluble polyaniline composite liquid, a nuclear layer Artificial bionic skin prepared by atomized spray liquid and its preparation method. Background technique [0002] As we all know, the skin is an important part of human organs, which can help to defend against microorganisms and other harmful substances in the external environment, and also has the functions of perspiration, regulating body water, excreting human metabolic products, and maintaining body temperature. Since the human skin is the organ most directly in contact with the external environment, it is also the most vulnerable part. For example, being hit by hard objects, high temperature or fire burns, fungal infe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L75/04C08L33/26C08L25/18C08L79/02C08K3/04C08K9/12C08K3/22C08J5/18C08G73/02A61F2/10
CPCC08J5/18C08G73/0266A61F2/105C08J2375/04C08J2433/26C08J2379/02C08J2425/18C08K3/041C08K9/12C08K2003/2227C08K3/042A61F2240/001
Inventor 闫成成李维虎董永红刘辉朱保凌戴家兵赵曦
Owner 合肥柔性科天机器人材料有限公司
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