Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of all-bio-based epoxy resin of double cross-linking system

A technology based on epoxy resin and double cross-linking, applied in the direction of coating, etc., can solve the problems of lack of toughness, low mechanical strength and complicated preparation method of resin.

Active Publication Date: 2019-06-11
EZHOU INST OF IND TECH HUAZHONG UNIV OF SCI & TECH +1
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that in the existing epoxy resin technology, there are technical problems that the resin lacks toughness and low mechanical strength, the materials used in the preparation process are not conducive to environmental protection, and the preparation method is relatively complicated.

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
  • Preparation method of all-bio-based epoxy resin of double cross-linking system
  • Preparation method of all-bio-based epoxy resin of double cross-linking system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The invention discloses a preparation method of a double cross-linking system full bio-based epoxy resin. After dissolving chitosan in a dilute acid solution and performing mechanical stirring to form a high-viscosity solution, the high-viscosity CaSO was added to the solution 4Or hydroxyapatite coordination cross-linking to form a complex, and mechanical stirring to form a solution with the first heavy cross-linking network. Then, nanocellulose is added to the solution having the first heavily cross-linked network, and ultrasonically dispersed to form a mixed solution. By adding epoxidized soybean oil in the mixed solution, using the chitosan as a curing agent and the epoxidized soybean oil to form a solution with a second heavy crosslinking network; In the solution of the network, the molar ratio range of controlling the chitosan and the epoxidized soybean oil is 1:0.5 to 1:1.5, and the mechanical stirring time range is 1 to 3 hours; the stirred solution is poured i...

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 discloses a preparation method of all-bio-based epoxy resin of a double cross-linking system, and belongs to the technical field of high polymer materials with sustainable development. The preparation method comprises the following steps: dissolving chitosan in a dilute acid solution, and carrying out mechanical stirring to prepare a high-viscosity solution; adding CaSO4 or hydroxyapatite into the high-viscosity solution for coordination crosslinking to form a complex, and carrying out mechanical stirring to prepare a solution with a first cross-linking network; adding nano-cellulose into the solution with the first cross-linking network, and carrying out ultrasonic dispersion to prepare a mixed solution; and preparing the resin through the mixed solution. Through the preparation method provided by the invention, toughness and mechanical strength of the resin are enhanced, the adopted materials in the preparation process are beneficial to environmental protection, and thetechnical effects of the preparation method are simplified.

Description

technical field [0001] The invention belongs to the technical field of sustainable development polymer materials, and in particular relates to a preparation method of a fully bio-based epoxy resin of a double cross-linking system. Background technique [0002] Epoxy resins are widely used as adhesives, coatings and composites in various industrial applications due to their excellent dielectric properties, low shrinkage, strong adhesion, good stability and high hardness. [0003] For the technology of epoxy resin, the production of epoxy prepolymer is mainly synthesized by the condensation reaction of bisphenol A (BPA) and epichlorohydrin to produce diglycidyl ether of bisphenol A (DGEBA), which is The most commercially available epoxy resin; or the preparation of sustainable polymer materials through soybean oil. The molecular chain of soybean oil contains a large number of double bonds. It can be oxidized by a specific method to obtain epoxy soybean oil, which can be used f...

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
IPC IPC(8): C08L91/00C08L1/02C08L5/08C08J3/24C08J9/28C08J9/36
Inventor 周华民蒋林王云明赖敏龙黄志高张云王旭康
Owner EZHOU INST OF IND TECH HUAZHONG UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com