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Heat-resistant composite building material based on epoxy resin

A technology of epoxy resin and epoxy resin glue, applied in the field of building materials, can solve the problems of limited application and development, poor fracture toughness and impact resistance, low upper limit temperature, etc., achieve good thermal stability and mechanical properties, and improve the skeleton Stiffness, effect of increasing bond density

Inactive Publication Date: 2019-02-15
福州臻美网络科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the poor fracture toughness and impact resistance of epoxy resin after curing, especially when used as a structural material, the upper limit temperature is low, which greatly limits its application and development.

Method used

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  • Heat-resistant composite building material based on epoxy resin
  • Heat-resistant composite building material based on epoxy resin
  • Heat-resistant composite building material based on epoxy resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A heat-resistant composite building material based on epoxy resin, including 60 parts of cement and 40 parts of epoxy resin adhesive, and the epoxy resin adhesive includes the following components in weight percentage: the following components in weight percentage: Heat-resistant epoxy resin 80%, curing agent 8%, reactive diluent 12%;

[0040] Described curing agent is diethylenetriamine;

[0041] Described reactive diluent is allyl glycidyl ether;

[0042] The preparation method of described heat-resistant epoxy resin specifically comprises the following steps:

[0043] S1, Synthesis of Naphthalene Tetracarboxyl Amino Acid

[0044] Add 100 mol of amino acid 1 and 220 mol of 1,4,5,8-naphthalene tetracarboxylic anhydride 2 into the reaction flask, heat the oil bath to 130°C at a heating rate of 5°C / min, and conduct condensation reaction for 1 hour. Pour the reactants into hot water, cool and crystallize naturally, and recrystallize the crystals with 30% ethanol aqueou...

Embodiment 2

[0057] A heat-resistant composite building material based on epoxy resin, including 70 parts of cement and 30 parts of epoxy resin adhesive, and the epoxy resin adhesive includes the following components in weight percentage: the following components in weight percentage: Heat-resistant epoxy resin 85%, curing agent 5%, reactive diluent 10%;

[0058] Described curing agent is diethylenetriamine;

[0059] Described reactive diluent is allyl glycidyl ether;

[0060] The preparation method of described heat-resistant epoxy resin specifically comprises the following steps:

[0061] S1, Synthesis of Naphthalene Tetracarboxyl Amino Acid

[0062] Add 100 mol of amino acid 1 and 250 mol of 1,4,5,8-naphthalene tetracarboxylic anhydride 2 into the reaction flask, heat the oil bath to 130°C at a heating rate of 5°C / min, and conduct condensation reaction for 1 hour. Pour the reactants into hot water, cool and crystallize naturally, and recrystallize the crystals with 30% ethanol aqueou...

Embodiment 3

[0074] A heat-resistant composite building material based on epoxy resin, including 66 parts of cement and 34 parts of epoxy resin adhesive, and the epoxy resin adhesive includes the following components in weight percentage: the following components in weight percentage: Heat-resistant epoxy resin 88%, curing agent 6%, reactive diluent 6%;

[0075] Described curing agent is diethylenetriamine;

[0076] Described reactive diluent is allyl glycidyl ether;

[0077] The preparation method of described heat-resistant epoxy resin specifically comprises the following steps:

[0078] S1, Synthesis of Naphthalene Tetracarboxyl Amino Acid

[0079] Add 100 mol of amino acid 1 and 230 mol of 1,4,5,8-naphthalene tetracarboxylic anhydride 2 into the reaction flask, heat the oil bath to 130°C at a heating rate of 5°C / min, and conduct condensation reaction for 1 hour. Pour the reactants into hot water, cool and crystallize naturally, and recrystallize the crystals with 30% ethanol aqueous...

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Abstract

The invention discloses a heat-resistant composite building material based on epoxy resin. The material is prepared from 60-75 parts of cement and 30-40 parts of an epoxy resin adhesive, wherein the epoxy resin adhesive comprises components in percentage by weight as follows: 80%-88% of heat-resistant epoxy resin, 5%-8% of a curing agent and 6%-12% of a reactive diluent. Naphthalene tetraformyl amino acid and linear epoxy resin are subjected to esterification polymerization after ring opening, and rigid groups including naphthalene rings and amide rings with better heat resistance are introduced in the structure, so that the framework rigidity of the epoxy resin is improved, rotation motion of obtained heat-resistant epoxy resin molecules is limited, and the heat resistance such as glass transition temperature and thermal decomposition temperature of epoxy resin is improved; the heat-resistant epoxy resin greatly improve the heat and high temperature resistance and aging resistance ofthe building material and prolongs the service life of the building material after being applied to the concrete building material.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a heat-resistant composite building material based on epoxy resin. Background technique [0002] Epoxy resin (EP) is widely used in machinery, coatings, electronic components and other fields due to its strong adhesion, acid and alkali resistance, high stability and good processability. However, due to the poor fracture toughness and impact resistance of epoxy resin after curing, especially when it is used as a structural material, the upper limit temperature is low, which greatly limits its application and development. Contents of the invention [0003] The object of the present invention is to provide a heat-resistant composite building material based on epoxy resin, through esterification polymerization after ring-opening of naphthalene tetracarboxyl amino acid and linear epoxy resin, introducing a rigid group with better heat resistance in the structu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C08G59/14
CPCC04B28/00C08G59/1477C04B24/281C04B24/121C04B24/023
Inventor 不公告发明人
Owner 福州臻美网络科技有限公司
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