Check patentability & draft patents in minutes with Patsnap Eureka AI!

Prepolymer for flame-retardant wear-resistant material and application of prepolymer

A technology of wear-resistant materials and prepolymers, applied in the field of thermosetting shape memory polymers and recyclable polymers, can solve the problems of non-wear-resistant materials, waste of resources, environmental pollution, etc., and achieve good shape memory performance and remodeling Performance, simple synthesis process, outstanding effect of heat resistance

Active Publication Date: 2020-02-04
江苏立一新材料科技有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, thermosetting resins are considered to be moldable only once and cannot be reused. Once defects such as cracks appear in wear-resistant products, they can only be scrapped, which will cause serious waste of resources and environmental pollution.
In recent years, the developed remodelable thermoset SMPs cannot combine high heat resistance, flame retardancy and good shape memory properties, and cannot be used as wear-resistant materials.

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
  • Prepolymer for flame-retardant wear-resistant material and application of prepolymer
  • Prepolymer for flame-retardant wear-resistant material and application of prepolymer
  • Prepolymer for flame-retardant wear-resistant material and application of prepolymer

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0029] The preparation method of the prepolymer for flame retardant wear-resistant material of the present invention is as follows:

[0030] (1) In the presence of quaternary ammonium salt, react 2-allylphenyl glycidyl ether with adipic acid to prepare bis(3-(2-allylphenoxy)-2-hydroxypropyl)hexyl Diacid ester;

[0031] (2) Stir and mix bis(3-(2-allylphenoxy)-2-hydroxypropyl) adipate, bismaleimide, zinc compound and filler system to obtain flame retardant and wear-resistant Prepolymer for materials; filler system includes epoxy resin, aluminum phosphate and alumina.

Synthetic example

[0033] On a mass basis, mix 120g of 2-allylphenol, 140g of sodium hydroxide, 10g of tetrabutylammonium bromide and 230g of tetrahydrofuran, and insulate and react at 35°C for 1.5h under stirring conditions to obtain solution A; Slowly add 270 g of epichlorohydrin dropwise, and keep stirring at 35° C. for 6 hours to react; after the reaction, vacuum rotary evaporation removes tetrahydrofuran and epichlorohydrin to obtain a crude product. The crude product was washed successively with saturated ammonium chloride solution (200 mL×2), deionized water (200 mL×2), and finally separated and purified by chromatography to obtain a yellow transparent liquid, namely 2-allylphenyl Glyceryl ether, the yield is about 93%, its reaction formula and 1 H-NMR see attached figure 1 and 2 . In terms of mass, mix 120g 2-allylphenyl glycidyl ether, 40g adipic acid, 10g tetrabutylammonium bromide and 230g acetonitrile, and insulate and react at 70°C for 8h under stirring conditions; after the reac...

Embodiment 1

[0035] Example 1 Preparation of prepolymer for flame-retardant and wear-resistant materials

[0036] 50g N, N'-4,4'-diphenylmethanebismaleimide, 73.41g bis(3-(2-allylphenoxy)-2-hydroxypropyl) adipate and 6.29 g (22.3 mmol) of zinc acetylacetonate hydrate and 6 g of filler system were mixed, stirred and pre-polymerized at 130°C for 90 minutes to obtain a prepolymer for flame-retardant and wear-resistant materials, and samples were taken for DSC testing.

[0037] Cool the above-mentioned prepolymer for flame retardant and wear-resistant materials to room temperature, put it into the preheated mold at 150°C, and perform hot pressing and post-treatment according to the following process: 150°C / 1 h / 1MPa+180°C / 2 h / 3MPa +200 ℃ / 1.5 h / 5MPa+220 ℃ / 1.5 h / 5MPa and 240 ℃ / 2 h; demold after natural cooling to obtain a flame retardant and wear-resistant material. Test TG, DMA, oxygen index and wear resistance.

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

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a prepolymer for a flame-retardant wear-resistant material and an application of the prepolymer. The preparation method particularly comprises the following steps: blending 2-allyl phenyl glycidyl ether and adipic acid in acetonitrile, and carrying out an esterification reaction under a condition that a quaternary ammonium salt is used as a catalyst to obtain bis(3-(2-allylphenoxy)-2-hydroxypropyl)adipate containing reversible dynamic groups; and then uniformly mixing the bis(3-(2-allyl phenoxy)-2-hydroxypropyl)adipate with bismaleimide, aluminum phosphate and aluminumoxide to obtain the prepolymer, wherein the flame-retardant wear-resistant material is prepared by carrying out curing. The flame-retardant wear-resistant material prepared from the prepolymer not only has good wear resistance, heat resistance and flame retardance, but also can be remolded under a hot-pressing condition, and has a wide application prospect.

Description

technical field [0001] The invention relates to a prepolymer for flame-retardant and wear-resistant materials and its preparation and application, belonging to the fields of thermosetting shape-memory polymers and recyclable polymers. Background technique [0002] Bismaleimide is a thermosetting resin with excellent mechanical properties and heat resistance. It is widely used in aerospace and other fields. At present, there are few reports on wear-resistant materials based on bismaleimide resin. Most of them are used as The modifier (used less than the main resin) is used to modify other substances, and it has good practical significance to prepare Shuangma wear-resistant materials with a reasonable process. [0003] Oxygen index (OI) refers to the minimum oxygen concentration required for a material to burn flamingly in an oxygen-nitrogen mixed flow under specified conditions. It is expressed by the volume percentage of oxygen; a high oxygen index indicates that the materi...

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): C08L79/08C08L63/00C08K3/32C08K3/22C07C67/26C07C69/44
CPCC08L79/085C07C67/26C07C69/44C07D301/28C07D303/23C08K2003/327C08K2003/2227C08L2201/12C08L2201/08C08L2201/02C08L63/00C08K3/32C08K3/22
Inventor 韩建梁国正王志龙
Owner 江苏立一新材料科技有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com