A kind of manufacturing method of modified sepiolite fiber reinforced rubber asphalt

A sepiolite fiber and reinforced rubber technology, which is applied to building structures, building components, building insulation materials, etc., can solve the problems of high processing temperature, unsatisfactory construction workability, and low stability

Active Publication Date: 2021-08-03
DONGGUAN TAIHE ASPHALTIC PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Asphalt has shortcomings such as high processing temperature, low stability, unsatisfactory construction workability, etc. Therefore, the production process and formula of rubber asphalt are perfected, the road performance of asphalt is improved, and the road quality of asphalt is continuously improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for manufacturing modified sepiolite fiber reinforced rubber asphalt, the specific steps comprising:

[0029] Step 1) Completely immerse the sepiolite fiber in a solution containing cyclodextrin and sodium hydroxide at 50°C for 12 minutes, remove and dry to obtain pretreated sepiolite fiber, the content of sodium hydroxide in the solution is 5 wt%, the content of cyclodextrin is 3 wt%,

[0030] Step 2) Put the pretreated sepiolite fiber into polyethylene glycol and cetyltrimethylammonium chloride aqueous solution, heat to 40°C and keep it warm for 12 minutes, while stirring magnetically, add titanate coupling after keeping warm agent, heated at 55°C for 30 minutes, filtered out the sepiolite fibers and dried in a blast drying oven at 45°C for 7 hours to obtain modified sepiolite fibers; the concentration of polyethylene glycol in the aqueous solution was 16g / L, Cetyltrimethylammonium chloride concentration is 7g / L,

[0031] Step 3) Mix 100 parts by mass of st...

Embodiment 2

[0034] A method for manufacturing modified sepiolite fiber reinforced rubber asphalt, the specific steps comprising:

[0035] Step 1) Completely immerse the sepiolite fiber in a solution containing cyclodextrin and sodium hydroxide at 55°C for 15 minutes, remove and dry to obtain pretreated sepiolite fiber, the content of sodium hydroxide in the solution is 6 wt%, the content of cyclodextrin is 4 wt%,

[0036] Step 2) Put the pretreated sepiolite fiber into polyethylene glycol and cetyltrimethylammonium chloride aqueous solution, heat to 45°C and keep it warm for 15 minutes, while stirring magnetically, add titanate coupling after keeping warm agent, heated at 55°C for 24 minutes, filtered out the sepiolite fibers and dried in a blast drying oven at 50°C for 6 hours to obtain modified sepiolite fibers; the concentration of polyethylene glycol in the aqueous solution was 18g / L, The concentration of cetyltrimethylammonium chloride is 8 g / L,

[0037] Step 3) Mix 100 parts by ma...

Embodiment 3

[0040] A method for manufacturing modified sepiolite fiber reinforced rubber asphalt, the specific steps comprising:

[0041] Step 1) Completely immerse the sepiolite fiber in a solution containing cyclodextrin and sodium hydroxide at 60°C for 13 minutes, remove and dry to obtain pretreated sepiolite fiber, the content of sodium hydroxide in the solution is 8 wt%, the content of cyclodextrin is 2 wt%,

[0042] Step 2) Put the pretreated sepiolite fiber into the aqueous solution of polyethylene glycol and cetyltrimethylammonium chloride, heat to 40°C and keep it for 14 minutes, while stirring magnetically, add titanate coupling after keeping it warm agent, heated at 50°C for 28 minutes, filtered out the sepiolite fibers and dried in a blast drying oven for 9 hours at 42°C to obtain modified sepiolite fibers; the concentration of polyethylene glycol in the aqueous solution was 17g / L, Cetyltrimethylammonium chloride concentration is 5 g / L,

[0043] Step 3) Mix 100 parts by mass...

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PUM

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Abstract

A method for manufacturing modified sepiolite fiber reinforced rubber asphalt, the specific steps include: step 1) completely immerse the sepiolite fiber in a solution containing cyclodextrin and sodium hydroxide at 50-60°C for 10-15 minutes, and After drying, the pretreated sepiolite fiber is obtained. The content of sodium hydroxide in the solution is 5-10wt%, and the content of cyclodextrin is 2-4wt%. The capacity is not good, it is easy to form agglomerates in the premixing process, and the dispersion effect is not good. The present invention pretreats the sepiolite fiber + activates the surface to treat the surface, and strengthens the phase of the reaction system between the sepiolite fiber and the asphalt material. Capacitive, can ensure its uniform dispersion in the reaction system, so as to ensure the isotropy of asphalt pavement.

Description

technical field [0001] The invention relates to a method for manufacturing modified sepiolite fiber reinforced rubber asphalt, which belongs to the technical field of asphalt manufacture. Background technique [0002] Asphalt occupies a very important position in road construction, and the vast majority of high-grade roads in the world use asphalt pavement. In order to prevent deformation of asphalt pavement at high temperature or fracture at low temperature, asphalt is required to have sufficient strength and thermal stability at high temperature, and sufficient elasticity and plasticity at low temperature. Therefore, the use of modifiers to improve the road performance of asphalt has become an important method to solve the problem of asphalt quality. Asphalt has disadvantages such as high processing temperature, low stability, unsatisfactory construction workability, etc. Therefore, the production process and formula of rubber asphalt are improved, the road performance of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L9/06C08K13/06C08K9/04C08K7/10C08K3/22C08K5/098
Inventor 张明军
Owner DONGGUAN TAIHE ASPHALTIC PROD
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