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A kind of bio-based phosphaphenanthrene curing agent flame-retardant epoxy resin material and preparation method thereof

A technology of epoxy resin and curing agent, which is applied in the fields of chemical instruments and methods, organic chemistry, compounds of group 5/15 elements of the periodic table, etc., to improve physical and mechanical properties, good application prospects, improve impact resistance and fire protection The effect of safety performance

Active Publication Date: 2021-10-29
BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, the research on the use of bio-based phosphaphenanthrene curing agent for flame-retardant epoxy resin has not been reported, and it is the first time to propose it at home and abroad. In order to develop environmentally friendly bio-based phosphaphenanthrene curing agent flame-retardant ring Oxygen resin materials provide new ideas

Method used

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  • A kind of bio-based phosphaphenanthrene curing agent flame-retardant epoxy resin material and preparation method thereof
  • A kind of bio-based phosphaphenanthrene curing agent flame-retardant epoxy resin material and preparation method thereof
  • A kind of bio-based phosphaphenanthrene curing agent flame-retardant epoxy resin material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Heat 100g of bisphenol A diglycidyl ether epoxy resin with an epoxy value of 0.46 to 120°C, add 3.88g of FPD, stir until the FPD is completely dissolved and the solution is transparent, add 37.90g of curing agent DDM, and stir After the DDM is completely dissolved, vacuum degassing at 120°C for 3 minutes, curing at 100°C for 2 hours, and then curing at 120°C for 4 hours, the prepared bio-based phosphaphenanthrene flame retardant curing agent flame retardant epoxy resin material The limiting oxygen index is 32.8%, and it has passed the UL94V-1 level, and the impact strength reaches 17.8kJ m -2 .

Embodiment 2

[0028] Heat 100g of bisphenol A diglycidyl ether epoxy resin with an epoxy value of 0.48 to 140°C, add 6.94g of FPD, stir until the FPD is completely dissolved and the solution is transparent, add 44.50g of curing agent DDM, and stir After the DDM is completely dissolved, vacuum degassing at 120°C for 3 minutes, curing at 120°C for 2 hours, and then curing at 170°C for 4 hours, the prepared bio-based phosphaphenanthrene flame retardant curing agent flame retardant epoxy resin material The limiting oxygen index is 33.6%, and it has passed the UL94V-0 level, and the impact strength reaches 15.6kJ m -2 .

Embodiment 3

[0030] Heat 100g of bisphenol A diglycidyl ether epoxy resin with an epoxy value of 0.49 to 160°C, add 7.98g of FPD, stir until the FPD is completely dissolved and the solution is transparent, add 37.31g of curing agent DDM, and stir until After the DDM is completely dissolved, vacuum degassing at 120°C for 3 minutes, curing at 140°C for 2 hours, and then curing at 180°C for 4 hours, the prepared bio-based phosphaphenanthrene flame retardant curing agent flame retardant epoxy resin material The limiting oxygen index is 33.9%, and it has passed the UL94V-0 level, and the impact strength reaches 18.9kJ m -2 .

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Abstract

The invention discloses a flame-retardant epoxy resin material of a bio-based phosphaphenanthrene curing agent and a preparation method thereof. The material is prepared by adding a bio-based phosphaphenanthrene curing agent into an epoxy resin, stirring until complete reaction, and then Curing and molding in a blast oven to obtain a halogen-free flame-retardant epoxy resin material. The bio-based phosphaphenanthrene curing agent used in the method not only comes from biomass materials but also has the functions of flame retardancy and curing. With a small amount of addition, the limiting oxygen index of the epoxy resin is significantly improved (up to 35.7%), and the vertical combustion (UL94) level can reach V‑0, which significantly improves the impact strength of the epoxy resin. Good application prospects.

Description

technical field [0001] The invention relates to a flame-retardant epoxy resin material made of a bio-based phosphaphenanthrene curing agent, and belongs to the technical field of adding specific auxiliary components to common epoxy resins to obtain flame-retardant epoxy resin materials. Background technique [0002] In recent years, epoxy resin has achieved remarkable development as an important basic material in the electronic and electrical industry. However, the flame retardancy of epoxy resin is poor, it is easy to ignite spontaneously, and it is difficult to self-extinguish, and most of the flame retardants used in epoxy resin will release toxic substances during combustion, which not only pollutes the environment, but also affects the physical properties of the resin. Mechanical behavior. Therefore, it is necessary to develop a flame retardant that can efficiently flame-retardant epoxy resin without affecting its mechanical properties. [0003] Chinese invention pate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G59/50C07F9/6574
CPCC07F9/657172C08G59/504
Inventor 钱立军姚忠樱邱勇许博陈雅君辛菲
Owner BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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