A kind of ice-resistant hydrogel bonding material and its preparation method and application

A bonding material and hydrogel technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of inability to resist ice and anti-ice hydrogel, irreversible bonding, etc.

Inactive Publication Date: 2021-04-23
SHANDONG UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems existing in the prior art, in order to solve the problem that traditional hydrogel materials cannot resist ice and the existing ice-resistant hydrogels are difficult to achieve reversible bonding at low temperature (-40°C), the present invention proposes a method using Method for preparing ice-resistant hydrogel bonding material from glycerol, calcium chloride, polyethyleneimine and acrylamide monomer

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of ice-resistant hydrogel bonding material and its preparation method and application
  • A kind of ice-resistant hydrogel bonding material and its preparation method and application
  • A kind of ice-resistant hydrogel bonding material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0043] The present invention also provides the preparation method of this ice-resistant hydrogel adhesive material, such as figure 1 Shown, described preparation method comprises the following steps:

[0044] (1) glycerol and calcium chloride are dissolved in deionized water to make calcium chloride-glycerol mixed solution;

[0045] (2) polyethyleneimine, acrylamide, cross-linking agent N, N'-methylenebisacrylamide (BAM) and photoinitiator 2960 are dissolved in the calcium chloride-glycerol mixed solution to make water Gel prepolymerization solution;

[0046] (3) Stir the hydrogel pre-polymerization liquid for 40 minutes by magnetic force and ultrasonically stir for 10 minutes to obtain a uniform hydrogel pre-polymerization liquid;

[0047] (4) Pour the uniform hydrogel pre-polymerization solution into a mold, and irradiate with ultraviolet rays for 2 hours to obtain the solid ice-resistant hydrogel bonding material.

[0048] In the step (1), the selected ratio of water and g...

Embodiment 1

[0056] 21.62 g of glycerol and 7.57 g of calcium chloride were dissolved in 9.81 g of deionized water to prepare a calcium chloride-glycerol solution. Then add 9g of acrylamide monomer, 2g of 50% PEI aqueous solution (containing 1g of PEI, which is a branched polymer with a molecular weight of 70000), 0.0054g of N,N'-methylenebisacrylamide and 0.18g of photoinitiated Agent 2960 is used to make a hydrogel prepolymer solution. Then magnetic stirring for 40 minutes and ultrasonic stirring for 10 minutes to obtain a uniform hydrogel pre-polymerization solution. Pour the uniform hydrogel pre-polymerization solution into a mold, and irradiate it with ultraviolet rays with a wavelength of 365nm and a power of 8W for 2 hours to obtain a hydrogel solid.

[0057] Taking iron as a test sample, this example is used to conduct a vertical bond test at room temperature (25° C.), and the measured bond strength is 90-100 kPa.

[0058] image 3 It is the cycle test result of the ice-resistan...

Embodiment 2

[0064] 21.62 g of glycerol and 7.57 g of calcium chloride were dissolved in 10.56 g of deionized water to prepare a calcium chloride-glycerol solution. Then add 9.75g of acrylamide monomer, 0.5g of 50% PEI aqueous solution (containing 0.25g of PEI, which is a branched polymer with a molecular weight of 70000), 0.00585g of N,N'-methylenebisacrylamide and 0.195 g photoinitiator 2960 made of hydrogel pre-polymerization liquid. Then magnetic stirring for 40 minutes and ultrasonic stirring for 10 minutes to obtain a uniform hydrogel pre-polymerization liquid. Pour the uniform hydrogel pre-polymerization solution into a mold, and irradiate it with ultraviolet rays with a wavelength of 365nm and a power of 8W for 2 hours to obtain a hydrogel solid.

[0065] Taking iron as a test sample, this example is used to conduct a vertical bond test at room temperature (25° C.), and the measured bond strength is 85-90 kPa.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention belongs to the technical field of hydrogel preparation methods, and in particular relates to an ice-resistant hydrogel bonding material and its preparation method and application. The invention provides a kind of anti-ice hydrogel bonding material, take glycerol, calcium chloride, polyethyleneimine (PEI), acrylamide monomer (AM) as raw material, in the presence of cross-linking agent and photoinitiator Under certain conditions, the anti-ice hydrogel bonding material can be obtained by irradiating with ultraviolet light with a wavelength of 365nm. The performance of the ice-resistant hydrogel bonding material prepared by the invention is better than that of the existing hydrogel bonding material, which solves the problem that the traditional hydrogel bonding material freezes at low temperature and cannot be used at low temperature (such as -40°C) problem of direct use. Moreover, the ice-resistant hydrogel adhesive material has multiple properties, including ice resistance, cohesiveness, water retention and electrical conductivity, especially in low-temperature bonding, and can achieve reversible adhesion in a harsh low-temperature environment of -40°C. Knot and can reuse.

Description

technical field [0001] The invention belongs to the technical field of hydrogel preparation, and in particular relates to an ice-resistant hydrogel bonding material suitable for low temperature environments and capable of realizing reversible bonding, and a preparation method and application of the material. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] Hydrogel adhesive materials have potential applications in many fields, such as flexible electronics, wearable devices, wound healing, and cartilage repair. However, when the temperature is below zero, such as in the cold environment of the Arctic and Antarctic, ordinary hydrogel materials will be frozen, making it diffi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): C08F283/00C08F220/56C08F2/44C08F2/48C08K5/053C08K3/16C08J3/075C08J3/28C08L51/08C09K3/18
CPCC08F2/44C08F2/48C08F283/00C08J3/075C08J3/28C08J2351/08C08K3/16C08K5/053C08K2003/162C09K3/18C08F220/56
Inventor 黄俊闫勇敢邱晓勇崔辛许树磊姚鹏黄传真
Owner SHANDONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap