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Polyelectrolyte elastomer as well as preparation method and application thereof

A polyelectrolyte and elastomer technology, which is applied in the field of polyelectrolyte elastomer preparation, can solve the problems of dehydration and hardening failure, increase processing difficulty and production cost, etc., achieve low production cost, broad industrial application prospects, and short production cycle Effect

Inactive Publication Date: 2018-10-09
雷周玥 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, hydrogel materials are prone to dehydration and hardening in the air, requiring an additional protective layer, which greatly increases processing difficulty and production costs

Method used

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  • Polyelectrolyte elastomer as well as preparation method and application thereof
  • Polyelectrolyte elastomer as well as preparation method and application thereof
  • Polyelectrolyte elastomer as well as preparation method and application thereof

Examples

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preparation example Construction

[0023] The preparation method of the above-mentioned polyelectrolyte elastomer, which comprises the following steps: (a) dispersing the ionic monomer or / and polymer in water to form an aqueous solution; (b) adding an initiator to the aqueous solution for reaction to obtain polymerization (c) drying the polymer aqueous solution to form a film or 3D printing into various shapes; the drying conditions can be low temperature (minimum -180°C), room temperature or high temperature (maximum 200°C). The process does not involve any organic solvents, only one-step reaction is required, does not involve complex synthesis steps, and can be used for simple processing such as 3D printing. The preparation process is simple, green, environmentally friendly and pollution-free, and the preparation conditions are relatively loose. Broad commercial application prospects. In step (a), the solute mass concentration of the aqueous solution can be adjusted within the range of 0.1% to 99%; in step (b...

Embodiment 1

[0027] This embodiment provides a preparation method and application of a polyelectrolyte elastomer, specifically:

[0028] (a) Disperse 5 g of 3-(2-methacryloyloxyethyldimethylamino) propanesulfonate monomer in 30 mL of water, and stir evenly to obtain the monomer aqueous solution;

[0029] (b) adding 0.1 g of ammonium persulfate initiator to the above-mentioned aqueous monomer solution, and then placing it at 70° C. for heating reaction for 6 hours to obtain an aqueous polymer solution;

[0030] (c) drying the above-mentioned aqueous polymer solution into a film at room temperature to obtain a polyelectrolyte elastomer with compressible, stretchable and self-repairing effects; its mechanical properties are shown in Table 1, and it can be seen that the polyelectrolyte elastomer has 1000% elongation at break, high compressive strength and fast self-healing effect.

[0031] The above-mentioned polyelectrolyte elastomer is applied, specifically: two polyelectrolyte elastomers a...

Embodiment 2

[0035] This embodiment provides a preparation method and application of a polyelectrolyte elastomer, specifically:

[0036] (a) Disperse 2g of 3-(2-methacryloyloxyethyldimethylamino)propanesulfonate monomer and 1g of acrylic acid monomer in 2mL of water, and stir evenly to prepare an aqueous monomer solution;

[0037] (b) adding 0.2 g of ammonium persulfate initiator to the above-mentioned aqueous monomer solution, and then placing it at 50° C. for heating reaction for 24 hours to obtain an aqueous polymer solution;

[0038] (c) 3D print the above polymer aqueous solution (parameters: pressure 0.3MPa, temperature at room temperature, needle diameter 0.2mm, speed 1mm min-1), and dry at room temperature to form a polyelectrolyte elastomer with a designed shape .

[0039] The above-mentioned polyelectrolyte elastomer is applied, specifically: the bionic smart skin prepared by separating two polyelectrolyte elastomers with a polyacrylate film (thickness: 100 μm), and then connect...

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Abstract

The invention relates to a polyelectrolyte elastomer as well as a preparation method and application thereof. The preparation method comprises the following steps: reacting ionic monomers or / and polymers in water in the presence of an initiator, and drying, thereby obtaining the product. The ionic monomers refer to one or more selected from 3-(2-methacryloyloxyethyldimethylamino) propyl sulfonate,acrylic acid, acryloyloxyethyl trimethyl ammonium chloride, methacryloyloxyethyl trimethyl ammonium chloride, methacrylic acid and sodium p-styrenesulfonate; the ionic polymers refer to one or more selected from poly-dimethyl diallyl ammonium chloride, polyacrylic acid, poly-dimethyl diallyl ammonium chloride and poly (4-styrenesulfonic acid sodium). The obtained bionic smart skin is capable of simulating mechanical behaviors of biological tissues, has perceptive functions of multiple kinds of outside stimulus, can be applied to the fields of medical bionic electronic devices, soft matter robots, internet-of-things sensing equipment and the like and has wide industrial application prospects.

Description

technical field [0001] The invention belongs to the field of polymer materials and relates to a polyelectrolyte elastomer, in particular to a polyelectrolyte elastomer, a preparation method and an application thereof. Background technique [0002] In recent years, with the rapid increase in demand for the concept of "Internet of Things" and soft matter robots, related industries and technical fields are also facing more opportunities and challenges, among which sensors are important components of the "nervous system" of soft matter robots and the Bottom-level accessories are the key equipment to support the operation of future soft matter robots and the entire Internet of Things. In order to build a large-scale sensor network, it is necessary to develop low-cost, high-efficiency sensor equipment, especially flexible sensors that can simulate the sensory function and mechanical adaptability of organisms. , Stretchable, self-healing sensors, that is, bionic skin devices, provi...

Claims

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Application Information

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IPC IPC(8): C08F120/38C08F220/38C08F220/06
CPCC08F120/38C08F220/38C08F220/387C08F220/06
Inventor 雷周玥武培怡
Owner 雷周玥
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