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A kind of preparation method of room temperature self-healing polymer film

A polymer film and self-repairing technology, applied in the chemical industry, can solve problems such as poor mechanical properties, high repairing temperature, and difficult adjustment of mechanical properties, and achieve the effect of high yield and simple and easy-to-control manufacturing method

Active Publication Date: 2020-12-11
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for self-healing polymers, the single force is weak, and the intrinsic self-healing system still has problems such as high repair temperature, poor mechanical properties, and difficult adjustment of mechanical properties.

Method used

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  • A kind of preparation method of room temperature self-healing polymer film
  • A kind of preparation method of room temperature self-healing polymer film
  • A kind of preparation method of room temperature self-healing polymer film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] (1) Synthesis of functional monomers containing hydrogen bonds and metal coordination bonds: by mass, 45 grams of ethyl isocyanate acrylate are dissolved in acetonitrile, and 45 grams of 1-(3-aminopropyl) imidazoles are also dissolved in acetonitrile, The former was added dropwise to the latter, reacted for 4 hours at 40°C, cooled to room temperature after the reaction was completed, added a mixture of ethyl acetate and petroleum ether (V:V=5:1), extracted three times with the above mixture, Rotary steaming at 45°C for 0.5 h gave a transparent viscous oily liquid, which was a functional monomer containing hydrogen bonds and metal coordination bonds.

[0048] (2) Preparation of polymer materials containing hydrogen bonds and metal coordination bonds: by mass, get 5 grams of ethyl acrylate, 4 grams of methyl methacrylate, and the hydrogen bonds and metal coordination bonds obtained in step (1) 4 grams of reactive monomers, 0.02 grams of benzoyl peroxide, mixed in dimethyl...

Embodiment 2

[0053] (1) Synthesis of functional monomers containing hydrogen bonds and metal coordination bonds: by mass, 46 grams of ethyl isocyanate acrylate are dissolved in tetrahydrofuran, and 50 grams of 1-(3-aminopropyl) imidazoles are also dissolved in tetrahydrofuran, Add the former to the latter dropwise, react for 3 hours at 50°C, cool to room temperature after the reaction is complete, add a mixed solution of n-hexane and methyl tert-butyl ether (V:V=3:1), use the above mixed solution Extracted three times, then rotary evaporated at 50°C for 0.5h to obtain a transparent viscous oily liquid, which is a functional monomer containing hydrogen bonds and metal coordination bonds.

[0054] (2) Preparation of polymer materials containing hydrogen bonds and metal coordination bonds: by mass, get 4 grams of n-butyl acrylate, 2 grams of ethyl methacrylate, hydrogen bonds and metal coordination bonds obtained in step (1) 3 parts of functional monomers, 0.025 g of azobisisobutyronitrile we...

Embodiment 3

[0064] (1) Synthesis of functional monomers containing hydrogen bonds and metal coordination bonds: by mass, 40 grams of ethyl isocyanate acrylate are dissolved in toluene, and 50 grams of 1-(3-aminopropyl) imidazoles are also dissolved in toluene, Add the former to the latter dropwise, react for 5 hours at 30°C, cool to room temperature after the reaction is complete, add a mixture of butyl acetate and dimethyl sulfoxide (V:V=2:1), use the above mixture Extract three times, and spin evaporate at 45°C for 0.5h to obtain a transparent viscous oily liquid, which is a functional monomer containing hydrogen bonds and metal coordination bonds.

[0065] (2) Preparation of polymer materials containing hydrogen bonds and metal coordination bonds: by mass, get 4.5 grams of isobutyl acrylate, 3 grams of n-propyl methacrylate, and the hydrogen bonds and metal coordination bonds obtained in step (1) 3 grams of key functional monomers, 0.05 grams of azobisisoheptanonitrile were mixed in N,...

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Abstract

The invention belongs to the technical field of chemical engineering, and particularly relates to a polymer film capable of being self-repaired at room temperature. The method comprises the followingsteps: firstly, preparing a novel functional monomer containing hydrogen bonds and metal coordination bonds; then, carrying out a polymerization reaction on the functional monomer, a methacrylate andan acrylate to obtain a polymer containing hydrogen bonds and metal coordination bonds; adjusting the mass ratio of the polymer to a metal salt to obtain a hydrogen bond-containing metal coordinationbond-containing polymer film capable of being self-repaired at room temperature; and finally dropwise adding a metal nano-wire solution on the polymer film capable of being self-repaired at room temperature, and volatilizing the solvent to obtain the polymer film capable of being self-repaired at room temperature. Compared with a conventional self-repairing polymer film, the self-repairing polymerfilm capable of being used at room temperature can be repaired at room temperature for multiple times after being damaged; injection of stimulation such as light, heat injection and the like is not needed; the repairing capability is high; the film forming property of the material is good; the process is simple; and cost is low.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a preparation method of a polymer film capable of self-repairing at room temperature. Background technique [0002] Due to the shortcomings of traditional wearable devices such as brittleness, poor bending and stretchability, and short service life, the demand for flexible wearable devices is becoming more and more urgent. Flexible wearable electronic devices refer to electronic devices or devices that have certain flexibility and can be directly or indirectly attached to the skin. Due to their light weight, flexibility and stretchability, they have attracted more and more attention. Flexible and stretchable conductive polymer materials as the basic material of flexible electronic devices are the first prerequisite for the preparation of flexible and wearable electronic devices. However, the current flexible and stretchable conductive polymer materials are ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J5/18C08F220/18C08F220/14C08F220/36C08L33/08
CPCC08F220/14C08F220/18C08J5/18C08J2333/08C08F220/36
Inventor 李国良崔绪瑞齐涛
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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