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Method for preparing modified thermosetting epoxy asphalt material

An epoxy asphalt material, thermosetting technology, applied in building insulation materials, building components, buildings, etc., can solve the problems of low strength and ductility of epoxy asphalt, achieve excellent wettability, improve ductility, and improve mechanical properties Effect

Active Publication Date: 2017-05-31
浙江晶达建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem actually solved by the present invention is: to solve the problem that the strength and ductility of the material of epoxy asphalt are not high, the key technical means adopted is to make asphalt and epoxy Resin forms a network structure

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A preparation method of modified thermosetting epoxy asphalt material, comprising the following steps:

[0019] (1) Weigh raw materials by weight: 100 parts of petroleum pitch, 40 parts of bisphenol A epoxy resin, 10 parts of tert-butylphenol formaldehyde resin, 10 parts of phthalic anhydride, 180 parts of chloroform, oil 30 parts of acid, 0.01 part of tin tetrachloride, 5 parts of dioctyl sodium sulfosuccinate, set aside;

[0020] (2) dissolving bisphenol A type epoxy resin in chloroform, adding oleic acid, dripping tin tetrachloride and reacting at 65 DEG C for 4 hours to obtain modified epoxy resin;

[0021] (3) Heat petroleum pitch, modified epoxy resin, tert-butylphenol formaldehyde resin, phthalic anhydride, and dioctyl sodium sulfosuccinate to 90°C, stir evenly, and then solidify at 130°C for 5 Hours, the modified thermosetting epoxy asphalt material was obtained.

Embodiment 2

[0023] A preparation method of modified thermosetting epoxy asphalt material, comprising the following steps:

[0024] (1) Weigh raw materials by weight: 100 parts of petroleum pitch, 70 parts of bisphenol A epoxy resin, 20 parts of tetramethylthiuram disulfide, 20 parts of phthalic anhydride, 220 parts of chloroform , 50 parts of oleic acid, 0.1 part of tin tetrachloride, 15 parts of dioctyl sodium sulfosuccinate, set aside;

[0025] (2) dissolving bisphenol A type epoxy resin in chloroform, adding oleic acid, dripping tin tetrachloride and reacting at 50 DEG C for 2 hours to obtain modified epoxy resin;

[0026] (3) Heat petroleum pitch, modified epoxy resin, tetramethylthiuram disulfide, phthalic anhydride, and dioctyl sodium sulfosuccinate to 80°C, stir evenly, and then After curing for 3 hours, a modified thermosetting epoxy asphalt material was obtained.

Embodiment 3

[0028] A preparation method of modified thermosetting epoxy asphalt material, comprising the following steps:

[0029] (1) Weigh raw materials by weight: 100 parts of petroleum pitch, 60 parts of bisphenol A epoxy resin, 18 parts of tert-butylphenol formaldehyde resin, 18 parts of methyl hexahydrophthalic anhydride, 190 parts of chloroform, oil 45 parts of acid, 0.08 part of tin tetrachloride, 13 parts of dioctyl sodium sulfosuccinate, set aside;

[0030] (2) dissolving bisphenol A type epoxy resin in chloroform, adding oleic acid, dripping tin tetrachloride and reacting at 55 DEG C for 3 hours to obtain modified epoxy resin;

[0031] (3) Heat petroleum pitch, modified epoxy resin, tert-butylphenol formaldehyde resin, methyl hexahydrophthalic anhydride, and dioctyl sodium sulfosuccinate to 85°C, stir evenly, and then cure at 130°C for 4 Hours, the modified thermosetting epoxy asphalt material was obtained.

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PUM

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Abstract

The invention discloses a method for preparing a modified thermosetting epoxy asphalt material. The method comprises the following steps: firstly, modifying bisphenol-A epoxy resin with oleic acid; then, uniformly heating, stirring and mixing petroleum asphalt, modified epoxy resin, a vulcanizing agent, a curing agent and sodium dioctyl sulfosuccinate; and thermosetting to obtain the modified thermosetting epoxy asphalt material. According to the method, epoxy resin is modified, the unsaturated group of the modified epoxy resin can perform vulcanization reaction with asphalt under the action of the vulcanizing agent; the epoxy group can form a three-dimensional crosslinked net structure with asphalt so as to form a uniform and orderly structure, and the mechanical performance of the modified thermosetting epoxy asphalt material can be improved; sodium dioctyl sulfosuccinate has excellent wettability, can be used for improving the dispersion uniformity of asphalt and modified epoxy resin and promoting net structure formation of the asphalt and modified epoxy resin, and the ductility of the modified thermosetting epoxy asphalt material can be improved on the premise of ensuring the material strength.

Description

technical field [0001] The invention belongs to the technical field of asphalt materials, and in particular relates to a preparation method of a modified thermosetting epoxy asphalt material. Background technique [0002] Asphalt has good adhesion, insulation, heat insulation and moisture-proof, waterproof, anti-corrosion and other properties. of building materials. Asphalt is a thermoplastic material with a relatively low price. However, due to the thermoplasticity of asphalt, its performance under high and low temperature conditions is not ideal. Asphalt materials tend to soften and flow at high temperatures, but are brittle and prone to cracks at low temperatures. In order to improve the performance of asphalt materials, people have been devoting themselves to the research and development of modified asphalt for a long time. [0003] Thermosetting epoxy asphalt material is to introduce epoxy resin into the asphalt system, let the asphalt and epoxy resin undergo simpl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L63/10C08L61/08C08K5/42C08G59/42C08G59/16
CPCC08G59/1472C08G59/4223C08L95/00C08L2205/03C08L63/10C08L61/06C08K5/42C08K5/40
Inventor 牟燕蓉
Owner 浙江晶达建材科技有限公司
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