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Medium and low temperature curing bio-based epoxy asphalt composite material and application thereof

A technology based on epoxy asphalt and composite materials, applied in building thermal insulation materials, building structures, building components, etc., can solve the problems of poor compatibility between epoxy resin and asphalt, low pollution, high curing temperature, and achieve improved performance and The effect of value, simple construction process and good workability

Inactive Publication Date: 2021-08-20
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Technical problem to be solved: In order to solve the problems of high curing temperature, poor compatibility between epoxy resin and asphalt, poor mechanical properties and high cost of medium and low temperature curing epoxy asphalt materials in the existing epoxy asphalt materials, the invention provides a medium and low temperature Curing bio-based epoxy asphalt composite material and its application, this method optimizes the epoxy resin toughening, medium and low temperature flexible curing agent, etc., comprehensively improves the compatibility of epoxy resin and asphalt, the performance of low temperature flexibility and curing temperature, It has multiple effects such as environmental protection, low energy consumption, low pollution and low cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Medium and low temperature curing bio-based epoxy asphalt composite material is composed of two components A and B, and the proportion of component A is as follows: 35 parts of bisphenol A epoxy resin E51, 15 parts of oleic acid epoxy, polyethylene 4.9 parts of glycol diglycidyl ether, 0.1 part of curing accelerator triethylamine, 45 parts of petroleum pitch; B component is the curing agent tung oil-based polyamide; the ratio of parts by mass between components A and B is 100:60 .

[0018] Step 1: Petroleum pitch is placed in the baking oven of 110 ℃ and heats 30min, then adds bisphenol A type epoxy resin E51, oleic acid epoxy, polyethylene glycol diglycidyl ether and curing accelerator triethylamine, at 80 Continue stirring at ℃ for 30 minutes, and cool to room temperature to obtain component A of the bio-based epoxy asphalt composite material.

[0019] Step 2: Mix the prepared component A and component B, stir for 5 minutes at a speed of 500 r / min, and cure at room t...

Embodiment 2

[0023] Medium and low temperature curing bio-based epoxy asphalt composite material is composed of two components A and B, and the proportion of component A is as follows: 25 parts of bisphenol A epoxy resin E44, 25 parts of dimer fatty acid epoxy, three 9.5 parts of methylolpropane triglycidyl ether, 0.5 part of curing accelerator triethanolamine, 40 parts of petroleum pitch; B component is curing agent dimer acid-based polyamide; the mass and number ratio of A component and B component is 100:65.

[0024] Step 1: Petroleum pitch is placed in 110 ℃ baking oven and heat 30min, then add bisphenol A type epoxy resin E44, dimer fatty acid epoxy, trimethylolpropane triglycidyl ether and curing accelerator triethanolamine, in Continue stirring at 80°C for 30 minutes, and cool to room temperature to obtain component A of the bio-based epoxy asphalt composite material.

[0025] Step 2: Mix the prepared component A and component B, stir at a speed of 500r / min for 5min, and cure at 70...

Embodiment 3

[0027] The medium and low temperature curing bio-based epoxy asphalt composite material is composed of two components A and B, and the proportion of component A is as follows: bisphenol A epoxy resin E44 35 parts, polyurethane modified epoxy 14 parts, polyester 5 parts of propylene glycol diglycidyl ether, 1 part of curing accelerator DMP-30, 45 parts of petroleum pitch; component B is curing agent tung oil-based polyamide and polyetheramine D230 (mass fraction ratio is 4:1); group A The ratio of parts by mass to component B is 100:70.

[0028] Step 1: Put petroleum asphalt in an oven at 110°C and heat it for 30 minutes, then add bisphenol A epoxy resin E44, polyurethane modified epoxy, polypropylene glycol diglycidyl ether and curing accelerator DMP-30, at 80°C Continue to stir for 30 minutes, and cool to room temperature to obtain component A of the bio-based epoxy asphalt composite material.

[0029] Step 2: Mix the prepared component A and component B, stir at a speed of ...

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Abstract

The invention relates to a medium and low temperature curing bio-based epoxy asphalt composite material and application thereof. The material is composed of a component A and a component B. The component A comprises the following components by mass: 15-40 parts of bisphenol A epoxy resin, 9.8-25 parts of modified epoxy resin, 4.5-10 parts of an epoxy diluent, 0.1-1 part of a curing accelerator, and 40-50 parts of petroleum asphalt. And the component B is a curing agent. The mass part ratio of the component A to the component B is 100: (50-70). The epoxy asphalt composite material prepared by the invention has the advantages of high strength, high toughness, medium and low temperature curing, strong compatibility, low energy consumption, low pollution, low cost, environmental protection and the like, and can be widely applied to road pavement of pavements and bridge floors.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to medium and low temperature curing bio-based epoxy asphalt composite materials and applications thereof. Background technique [0002] The development of transportation is inseparable from the progress of road materials. As an important pavement material, asphalt has been used in various forms of pavement. Petroleum asphalt is the most widely used and used asphalt. It is a natural thermoplastic material with poor high and low temperature performance, and it is difficult to meet the performance requirements of high-grade pavement. Therefore, the development of high-performance asphalt composite materials has become an important research for technicians. direction. [0003] Asphalt composite material refers to a stable colloidal dispersion system formed by dispersing various high molecular polymers, inorganic materials and other materials in petroleum asphalt by means...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L63/00C08L63/02C08G59/60C08G59/44
CPCC08G59/44C08G59/60C08L95/00C08L63/00
Inventor 李梅丁海阳夏建陵李守海张燕周颖许利娜杨小华姚娜
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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