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Phosphor-nitrogen halogen-free flame-retardant epoxy resin

A technology based on epoxy resin and phosphorus nitrogen system, which is applied in the field of halogen-free flame retardant epoxy resin, and can solve problems that have not been reported

Inactive Publication Date: 2013-12-25
BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention uses tris-(3-DOPO-2-hydroxy-1-propyl)-triazinetrione (TGIC-DOPO) as an additive flame retardant, which is a new type of phosphaphenanthrene-triazinetrione bis Based synergistic flame retardant additives, which have not been reported in the current literature and published materials

Method used

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  • Phosphor-nitrogen halogen-free flame-retardant epoxy resin
  • Phosphor-nitrogen halogen-free flame-retardant epoxy resin
  • Phosphor-nitrogen halogen-free flame-retardant epoxy resin

Examples

Experimental program
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Effect test

Embodiment 1

[0016] Example 1 100g of bisphenol A diglycidyl ether epoxy resin with an epoxy value of 0.51 was heated to 180°C, and 8.6g of three-(3-DOPO-2-hydroxyl-1-propyl)- Add triazinetrione into the epoxy resin, stir for 1 hour, add 31.7g DDS into the epoxy resin, stir evenly, remove the gas in the system under vacuum conditions, and then pour it into the preheated mold , pre-cured at 150°C for 3 hours, and then cured at 180°C for 5 hours, the mass fraction of TGIC-DOPO in the obtained epoxy resin cured product was 6%, and the limiting oxygen index was 33.3%.

Embodiment 2

[0017] Example 2 Heat 100g of bisphenol A diglycidyl ether epoxy resin with an epoxy value of 0.51 to 180°C, and mix 18.3g of three-(3-DOPO-2-hydroxyl-1-propyl)- Add triazinetrione into epoxy resin, stir for 1 hour, cool down the system to 75°C, add 60mL methyl ethyl ketone into epoxy resin and stir for 1 hour, add 31.7g DDS into epoxy resin, stir evenly Finally, the organic solvent in the system was removed under vacuum conditions, and then poured into a preheated mold, pre-cured at 150°C for 3 hours, and then cured at 180°C for 5 hours, the obtained epoxy resin cured product The mass fraction of TGIC-DOPO is 12%, and the flame retardant grade is UL94V-0.

Embodiment 3

[0018] Example 3 Heat 100g of bisphenol A diglycidyl ether epoxy resin with an epoxy value of 0.46 to 150°C, and mix 14.3g of three-(3-DOPO-2-hydroxyl-1-propyl)- Triazinetrione was added to the epoxy resin and stirred for 1.5 hours.

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Abstract

The invention relates to a phosphor-nitrogen additive type flame retardant 3-(3-DOPO-2-hydroxyl-1-propyl)-triazine triketone (TGIC-DOPO), and belongs to the technical field of preparing flame-retardant epoxy resin materials by adding specific flame-retardant components in common epoxy resin. The cured epoxy resin is prepared by carrying out melt blending on a flame retardant TGIC-DOPO and a bisphenol A diglycidyl ether type resin at a certain temperature, adding an organic solvent to prepare a flame-retardant epoxy resin, adding a curing agent into the flame-retardant epoxy resin, volatizing the organic solvent at a certain temperature and performing a curing reaction of epoxy resin. The epoxy resin disclosed by the invention can be used as a flame-retardant binding material in the field of electronic appliances.

Description

technical field [0001] The invention relates to a halogen-free flame-retardant epoxy resin compounded with phosphorus-nitrogen flame retardants, and belongs to the technical field of adding specific flame-retardant components to common epoxy resins to obtain flame-retardant epoxy resin materials. Background technique [0002] Epoxy resin is widely used in the fields of adhesives, printed circuit boards and packaging materials in the electronic and electrical industry because of its good adhesion, electrical insulation, chemical corrosion resistance and low shrinkage; however, The limiting oxygen index (LOI) of ordinary epoxy resin is low (about 19.8), easy to ignite, and difficult to self-extinguish after ignition; in order to avoid life and property safety hazards caused by its flammability, in practice In the application, flame retardant modification of epoxy resin is required. [0003] According to the relevant patents and research papers reported and published so far, d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/02C08K5/5313
Inventor 钱立军陈雅君邱勇
Owner BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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