Hydrogel-containing unsaturated polyester resin flame-retardant composite material and preparation method thereof

A flame retardant composite material, polyester resin technology, applied in the field of polymers and composite materials, can solve the problems of material mechanical properties decline, elongation at break, loss of flame retardant ability, etc., to improve the limit oxygen index, maintain size Stability, the effect of improving elongation at break

Inactive Publication Date: 2008-07-23
QINGDAO UNIV OF SCI & TECH
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the water-containing unsaturated polyester resin also has many shortcomings: first, the water-retaining rate of the water-containing unsaturated polyester is relatively low, and it will lose water at a faster rate when placed in the air for a long time, thereby weakening or losing the flame retardancy, and at the same time causing the size shrink
Second, although it has obvious flame retardant properties in the case of high moisture content, excessive moi

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1. A hydrogel unsaturated polyester resin flame-retardant composite material. Includes hydrous unsaturated polyester resins.

[0024] Its mass parts components are as follows: unsaturated polyester resin 100, emulsifier 11, unsaturated polyester curing agent 2.5, unsaturated polyester accelerator 1.5, water phase polymerization initiator 2, water phase polymerization crosslinking agent 3, water soluble Sexual monomer 35, water 80. Wherein the aqueous solution of unsaturated monomers is composed of unsaturated monomers capable of radical polymerization and their initiators, crosslinking agents, water and emulsifiers, and the mass percentage of unsaturated monomers in the aqueous solution of unsaturated monomers is 35%. .

[0025] The above-mentioned water-soluble monomer is sodium acrylate. The water phase polymerization initiator is potassium persulfate. The water phase polymerization crosslinking agent is N, N-methylenebisacrylamide. Emulsifiers are SPAN-...

Embodiment 2

[0028] Example 2. A hydrogel unsaturated polyester resin flame-retardant composite material. Includes hydrous unsaturated polyester resins. Its mass parts components are as follows: unsaturated polyester resin 100, unsaturated polyester curing agent 3, unsaturated polyester accelerator 0.05, water phase polymerization initiator 2, water phase polymerization crosslinking agent 5, water-soluble monomer 1 , water 100. Wherein the aqueous solution of unsaturated monomers is composed of unsaturated monomers capable of radical polymerization and their initiators, crosslinking agents, water and emulsifiers, and the mass percentage of unsaturated monomers in the aqueous solution of unsaturated monomers is 1%. .

[0029] The above-mentioned water-soluble monomer is acrylic acid. The water phase polymerization initiator is ammonium persulfate. The water phase polymerization crosslinking agent is N, N-methylenebisacrylamide.

[0030] The emulsifier is SPAN-80 and triethanolamine, t...

Embodiment 3

[0032] Example 3. A hydrogel unsaturated polyester resin flame-retardant composite material. Includes hydrous unsaturated polyester resins. Its mass parts components are as follows: unsaturated polyester resin 100, emulsifier 20, unsaturated polyester curing agent 0.5, unsaturated polyester accelerator 1, water phase polymerization initiator 0.02, water phase polymerization crosslinking agent 0.05, water soluble Sexual monomer 50, water 50. Wherein the aqueous solution of unsaturated monomers is composed of unsaturated monomers capable of radical polymerization and their initiators, crosslinking agents, water and emulsifiers, and the mass percentage of unsaturated monomers in the aqueous solution of unsaturated monomers is 50%. .

[0033] The above-mentioned water-soluble monomer is a mixture of acrylamide, itaconic acid and maleic anhydride. The water phase polymerization initiator is sodium persulfate. The water phase polymerization crosslinking agent is N, N-methyleneb...

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 relates to a composite flame retardant material of hydrogel unsaturated polyester resin and the preparation method. The preparation materials comprise unsaturated polyester resin 100, emulsifier 0-20, solidifying agent 0.5-3, promoter 0.05-1.5, initiator 0.02-2, cross-bonding agent 0.05-5, water-soluble monomer 1-50, and water 50 -100 in mass percent. The preparation method comprises the steps of dissolving the cross-bonding in the solution of water soluble monomer and inputting nitrogen and avoiding oxygen for 30 minutes, then filtering; dissolving the initiator and the emulsifier in the filtered solution; emulsification of hydrogel unsaturated polyester resin; adding solidifying agent and promoter to the unsaturated polyester resin emulsion to solidify. The composite flame retardant material of hydrogel unsaturated polyester resin has the advantages of high and stable preserving water rate, good flame retardant capability and dimensional stability, improving the fracture elongation and toughness, uneasy cracking, good mechanical properties, and the surface is uneasy cracking when heated or combusted. The material can be widely used in artificial timber and tar filtering, foam, thermal insulation for buildings, decoration, glass fiber reinforced plastic and other materials.

Description

technical field [0001] The invention belongs to the technical field of polymers and composite materials, and more specifically relates to the improvement and innovation of a hydrogel unsaturated polyester resin flame-retardant composite material and a preparation method thereof. Background technique [0002] In recent years, with the continuous advancement of industrial technology, the performance requirements of new materials are getting higher and higher. Especially for some specific materials, special properties are required, which requires researchers to continuously explore new materials or general materials. Modified to meet needs. The latter approach tends to be faster to implement in most studies. [0003] Unsaturated polyester resin has excellent comprehensive properties and is widely used due to its diverse molding. It is mainly used in glass fiber reinforced plastics, followed by castings, anchoring agents, coatings, handicrafts, insulating materials and home de...

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): C08L51/08C08F283/01C08F4/30C08F2/32C08K5/17
Inventor 于善普金闯陈学刚姚凤霞史显宗
Owner QINGDAO UNIV OF SCI & TECH
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