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A kind of halogen-free flame-retardant hand lay-up epoxy resin composition and preparation method thereof

An epoxy resin, hand lay-up molding technology, applied in the field of halogen-free flame retardant epoxy resin composition and its preparation, halogen-free flame retardant hand lay-up molding epoxy resin composition and its preparation field, can solve the problem of unenvironmental raw materials, Low impact toughness, fast gel time of epoxy resin composition, etc., to achieve high flame retardant and toughening effect, improve flame retardant performance, high impact toughness effect

Active Publication Date: 2018-08-07
NEW UNITED GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved in the present invention is aimed at (1) the impact toughness of cured product of epoxy resin is low at present; Manufacture and reinforcement of rail air-conditioning products and wind power blades; (3) The preparation method of the epoxy resin composition is complicated; (4) The components of the epoxy resin composition include raw materials that are not conducive to human health and are not environmentally friendly.

Method used

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  • A kind of halogen-free flame-retardant hand lay-up epoxy resin composition and preparation method thereof
  • A kind of halogen-free flame-retardant hand lay-up epoxy resin composition and preparation method thereof
  • A kind of halogen-free flame-retardant hand lay-up epoxy resin composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A preparation method of a halogen-free flame-retardant hand lay-up epoxy resin composition, the operation is as follows:

[0043] (1) Preparation of component A

[0044] Put 55 parts by weight of bisphenol A type epoxy resin, 25 parts by weight of aluminum hydroxide, and 20 parts by weight of the new indole phosphonate flame retardant into the stirring tank, and put the resin into the first packaging barrel after stirring;

[0045] (2) Preparation of component B

[0046] Put 20.9 parts by weight of α-aminophosphonate and 15 parts by weight of bisphenol A into the reactor, raise the temperature to 50°C, react for 0.5h, cool down to room temperature, then add 9 parts by weight of isophorone diamine, m-phthalylene 40 parts by weight of amine, 15 parts by weight of indole phosphonate flame retardant of novel quaternary carbon α-hydroxyl and 0.1 part of anilinomethyltriethoxysilane, stirred at room temperature for 2.5h at a stirring speed of 50r / min, pumped After 5 minutes o...

Embodiment 2

[0049] A preparation method of a halogen-free flame-retardant hand lay-up epoxy resin composition, the operation is as follows:

[0050] (1) Preparation of component A

[0051] Put 60 parts by weight of bisphenol A type epoxy resin, 24 parts by weight of aluminum hydroxide, and 16 parts by weight of a new type of indole phosphonate flame retardant into a stirring tank, and put the resin into packaging barrel 1 after stirring;

[0052] (2) Preparation of component B

[0053] Put 25 parts by weight of α-aminophosphonate and 8 parts by weight of bisphenol A into the reactor, raise the temperature to 60°C, react for 1 hour, cool down to room temperature, then add 10 parts by weight of isophoronediamine, m-xylylenediamine 40 parts by weight, 16 parts by weight of indole phosphonate flame retardant of novel quaternary carbon α-hydroxyl and 0.5 parts by weight of anilinomethyltrimethoxysilane, 0.5 part by weight of γ-aminopropyltrimethoxysilane, at room temperature Stir at a stirri...

Embodiment 3

[0056] A preparation method of a halogen-free flame-retardant hand lay-up epoxy resin composition, the operation is as follows:

[0057] (1) Preparation of component A

[0058] Put 58 parts by weight of epoxy resin, 23 parts by weight of aluminum hydroxide; 19 parts by weight of the new indole phosphonate flame retardant into the stirring tank, and put the resin into the first packaging barrel after stirring;

[0059] (2) Preparation of component B

[0060] Put 20 parts by weight of α-aminophosphonate and 12 parts by weight of bisphenol A into the reaction kettle, raise the temperature to 65°C, react for 0.8h, cool down to room temperature, then add 12 parts by weight of isophorone diamine, m-phthalamide 40 parts by weight of methylamine, 15 parts by weight of a novel quaternary carbon α-hydroxyl indole phosphonate flame retardant and 1 part by weight of γ-aminopropyl triethoxysilane, stirred at a stirring speed of 60 r / min for 2 hours at room temperature , stop stirring aft...

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Abstract

The invention relates to a halogen-free flame-retardant hand lay-up epoxy resin composition and a preparation method thereof. According to the technical scheme of the invention, a novel indolyl phosphonate compound is applied to a flame-retardant system for the first time, and the indolyl phosphonate compound has favorable compatibility with an epoxy resin composition and shows a high flame-retardant effect. According to the invention, the epoxy resin cured material has high impact toughness, can be used for manufacturing and reinforcing of various large-size composite components, and can satisfy the hand lay-up process requirements of fiber-reinforced composite materials; and the finished product has the advantages of efficient flame retardancy, corrosion resistance, light weight and the like, can be used instead of a traditional metal product and a plastic board having no flame-retardant characteristic, can be widely used in the fields having high flame-retardant characteristic requirements for materials such as electrotechnics and electronics, aerospace, new energy, rail transportation, sports equipment and the like, and is especially suitable for manufacturing and reinforcing of rail air-conditioning products and wind turbine blades.

Description

technical field [0001] The invention relates to the field of epoxy resin compositions, in particular to a halogen-free flame-retardant hand lay-up epoxy resin composition and a preparation method thereof, especially to electrical and electronic, aerospace, new energy, rail transit, sports equipment, etc. The invention relates to a halogen-free flame-retardant epoxy resin composition with high flame-retardant property requirements and a preparation method thereof. Background technique [0002] Epoxy cured products have good mechanical properties, electrical properties, dimensional stability and cohesiveness. Large composite parts made of epoxy resin reinforced fibers have the advantages of low water absorption, corrosion resistance and low cost, but due to The chemical structure of epoxy resin determines that its toughness and flame retardancy are poor. In addition, the current domestic epoxy resin composition has a short operating time, which cannot meet the requirements of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08K13/02C08K3/22C08K5/5353
CPCC08K3/22C08K5/5353C08K13/02C08K2003/2227C08K2201/014C08L63/00
Inventor 金诚徐建东张玉方聃黄锦锦
Owner NEW UNITED GROUP
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