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

A polyaniline and compound liquid technology, applied in skin transplantation, medical science, prosthesis, etc., can solve the problems that artificial skin does not have piezoelectric sensing effect, and it is difficult to achieve seamless covering of three-dimensional objects and joints, etc. To achieve a soft touch effect

Active Publication Date: 2021-06-15
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 the alkoxic cationic fluorinated polyurethane, the preferred types of each raw material are as follows:

[0037] The polyol having a biocompatible polyol is a polyether polyol, a polyester polyol, a polylactic acid polyol, a mass component ratio (30 to 50): (50-100): (15-50).

[0038] The polyether polyol is a polyoxyethylene glycol, a polytetrahydrofuranyl?, A soybean oil polyether polyol, a palm oil polyether polyol, a castor oil polyether polyol, and a mannich polyether diol. Combination of two or more; polyester polyols are polycaproxide diols, polylactide-CO-caprolactone polyol, poly ε-caprolactone polyether polyol, polycarbonate One or two of the polyols; the polylactic acid polyol is a biodegradable polyol soft section.

[0039] The isocyanate is an aliphatic polyisocyanate, specifically comprising isovanone diisocyanate, dicyclohexylmetane diisocyanate, 1,6 hexyl diisocyanate, tetramethylcyclohexylmetane diisocyanate, methylcyclohexyl diisocyan...

Embodiment 1

[0052] The present invention provides a method of preparing a shell atomized spray, specifically comprising:

[0053] Synthesis of S1, alcohol-soluble high molecular weight cationic fluorinated polyurethane: 35 parts of polyoxyethylene glycol, 60 parts of polylactide diol, 25 parts of polylactic acid polyol, 90 ~ 105 ° C vacuum dehydration 1-1.5 H; then cool down to 45-55 ° C, and the weighing 85 parts of isovated diisocyanate is added, and the temperature is warmed to 90 ° C for 3 h, and the remaining NCO group reaches the theoretical residual value, lower the temperature to 60 ° C, sequentially added 7 parts of fluorinated small molecule monohydric alcohol, fluorinated diol, 6 parts N-methyl diethanolamine, 10 parts of polymethylsiloxane, 3 parts of carboxylate catalyst to continue heat The reaction is 3 h and the protective gas is introduced during the reaction. After the reaction is reached, the temperature is continued to 45 ° C, then 8 parts of a glycol chain extender, 1 par...

Embodiment 2

[0056] The present invention provides a method of preparing a nuclear layer atomizing spray, including:

[0057] S1, prepared a water-soluble polyaniline composite, and cited a conductive nano-media: a polymer acid, aniline, respectively, in distilled water, a molar ratio of 1.5: 1: 5, and in a mixing system, respectively. The medium is dissolved in the 30 min removal of the system; then placed at 5 ° C for 4 h, then drip with 2 mmol / L of ammonium sulfate solution, the molar ratio of ammonium sulfate and aniline is 1: 1. The dropwise time was controlled at 1.5 h, and then the reaction was completed and then the reaction was continued for 8h to obtain an acid-doped polyaniline aqueous solution. Subsequently weigh 50 parts of polyaniline solution to add 3 parts of multi-walled carbon nanotubes and 2 parts. The graphene (graphene and carbon nanotubes) of the aluminum nanoparticles were grinding on the ball mill. Then, the AK high speed was dispersed and 0.5 h was dispersed by ultra...

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Abstract

The invention belongs to the field of water-based polymer functional materials, and particularly relates to a water-soluble polyaniline composite liquid, a core layer atomized spray liquid, artificial bionic skin and a preparation method. The polyaniline composite liquid is synthesized in a polymer acid doping mode, serves as a network path to transmit core layer dielectric signals, and endows a skin layer with a piezoelectric sensing effect. The artificial bionic skin is prepared from core layer atomized spray liquid and shell layer atomized spray liquid prepared from alcohol-soluble cationic fluorinated polyurethane through a core-shell electrostatic atomization technology, and the artificial bionic skin has the advantages of air permeability, moisture permeability, hydrophobicity, oleophobicity, antibiosis, high strength, high flexibility, high conductivity and low resistance. A three-dimensional object can be sprayed at any angle through the electrostatic atomization technology, and the coating of a three-dimensional mechanical structure and joints of a robot is realized. The artificial bionic skin can be applied to medical wound skin repair, meanwhile, the core layer can be directly sprayed on the heart or wrist part of a human body due to the excellent conductivity, and possibility is provided for electric signal transmission of the robot skin in the later period or human heartbeat monitoring applied to the medical field.

Description

Technical field [0001] The present invention belongs to the synthesis and preparation of aqueous polymer functional material, and more particularly to a water-soluble polyaniline composite liquid and a method of preparing a nuclear layer prepared from a water-soluble polyaniline composite, from the nucleation layer Artificial bionic skin and preparation method prepared by atomizing spray. Background technique [0002] As is well known, the skin is an important part of the human organ, which can assist in preventing microorganisms and other hazardous substances in vitro environments, while having a wicking, tuning human moisture, excretion of human body's metabolism, and maintaining human body temperature. Since the human skin is the organ that is most direct contact with the external environment, it is also the most vulnerable part of the damage, such as the hard object hits bumps, high temperature or fire burns, fungal infections, acute trauma, etc. will result in damage or even...

Claims

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Application Information

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Patent Type & Authority Applications(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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