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Method for preparing asphalt modifying assistant

A technology of asphalt modification and additives, applied in building components, building insulation materials, construction, etc., can solve the problems of large dosage and high price, and achieve the effects of improving comprehensive performance, crack resistance life, plasticity and viscosity

Inactive Publication Date: 2015-08-19
湖州华仑助剂科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] As an excellent asphalt modifier, SBS can improve the high and low temperature performance of asphalt to a certain extent, but if it works alone, the dosage is usually large, and its price is high. More workers hope to find its substitute

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation method of an asphalt modification aid, the components comprising:

[0028] 19 parts by weight of SBS thermoplastic rubber,

[0029] 18 parts by weight of UPVC,

[0030] 8 parts by weight of CPVC,

[0031] The kaolin of 5 weight parts, the particle size of described kaolin is 1.0u,

[0032] The solvent oil of 10 parts by weight; Described solvent oil is the compound that furfural extracts oil or waste edible oil and furfural extracts oil,

[0033] The dispersant of 8 parts by weight; The dispersant is the Deqian DA-325 of the amine salt of macromolecular polyphosphate ester.

[0034] The stabilizer of 3 weight parts; Described stabilizer is made up of three salts, disalt, antimony mercaptide and lead stearate; By weight, three salts: disalt: antimony mercaptide: lead stearate==1: 1:1:1.

[0035] (1) Mix SBS thermoplastic rubber, UPVC, CPVC and solvent oil at low speed and stir to 60°C;

[0036] (2) Add kaolin and stir at a high speed to 80°C, and the ...

Embodiment 2

[0041] A method for preparing an asphalt modification aid, the components comprising;

[0042] 15 parts by weight of SBS thermoplastic rubber,

[0043] 25 parts by weight of UPVC,

[0044] 12 parts by weight of CPVC,

[0045] The kaolin of 8 weight parts, the particle size of described kaolin is 1.0u,

[0046] The solvent oil of 5 weight parts; Described solvent oil is the compound that furfural extracts oil or waste edible oil and furfural extracts oil,

[0047] The dispersant of 7 parts by weight; The dispersant is the Deqian DA-325 of the amine salt of macromolecular polyphosphate ester.

[0048] The stabilizing agent of 5 weight parts; Described stabilizing agent is made up of trisalt, disalt, antimony mercaptide and lead stearate; By weight, trisalt: disalt: antimony mercaptide: lead stearate==1: 1:1:1.

[0049] (1) Mix SBS thermoplastic rubber, UPVC, CPVC and solvent oil at low speed and stir to 60°C;

[0050] (2) Add kaolin and stir at a high speed to 80°C, and th...

Embodiment 3

[0055] A kind of preparation method of asphalt modification auxiliary agent, component comprises,

[0056] 21 parts by weight of SBS thermoplastic rubber,

[0057] 15 parts by weight of UPVC,

[0058] 5 parts by weight of CPVC,

[0059]6 parts by weight of kaolin, the particle size of the kaolin is 1.0u,

[0060] The solvent oil of 8 weight parts; Described solvent oil is the compound that furfural extracts oil or waste edible oil and furfural extracts oil,

[0061] The dispersant of 6 parts by weight; The dispersant is the Deqian DA-325 of the amine salt of macromolecular polyphosphate ester.

[0062] The stabilizer of 4 weight parts; Described stabilizer is made up of three salts, disalt, antimony mercaptide and lead stearate; By weight, three salts: disalt: antimony mercaptide: lead stearate==1: 1:1:1.

[0063] (1) Mix SBS thermoplastic rubber, UPVC, CPVC and solvent oil at low speed and stir to 60°C;

[0064] (2) Add kaolin and stir at a high speed to 80°C, and the s...

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Abstract

The invention relates to a method for preparing an asphalt modifying assistant and belongs to the technical field of assistant preparation methods. The method comprises the steps: (1) mixing 15-21 parts by weight of SBS (Styrene Butadiene Styrene block polymer) thermoplastic rubber, 15-25 parts by weight of UPVC (Unplasticized Polyvinyl Chloride), 5-12 parts by weight of CPVC (Chlorinated PVC) and 5-10 parts by weight of solvent oil, and stirring at a low speed until the temperature of the mixture is 60 DEG C; (2) adding 5-8 parts by weight of kaolin, and stirring at a high speed until the temperature of the mixture is 80 DEG C, wherein the revolution rate of stirring is higher than 1,000 revolutions per minute; (3) adding 6-8 parts by weight of dispersant, and stirring at a high speed until the temperature of the mixture is 100-110 DEG C, wherein the revolution rate of stirring is higher than 1,000 revolutions per minute; (4) grinding, and then, filtrating, so as to enable the degree of fineness of the ingredients to be not greater than 80 microns; (5) adding 3-5 parts by weight of stabilizer, stirring at a low speed, and cooling the mixture to the temperature of 35-40 DEG C, thereby preparing the assistant. Due to the addition of UPVC, CPVC and kaolin, UPVC, CPVC and kaolin mutually generate synergistic effects, and Al and Si ions generated from the decomposition of kaolin play a role in polarizing other ions, so that the shrinking percentage of UPVC and CPVC is increased, the plasticity and viscosity of the assistant are improved, and the anti-corrosion property of the assistant is improved jointly by UPVC, CPVC and kaolin.

Description

technical field [0001] The invention belongs to the technical field of preparation methods of auxiliary agents, and in particular relates to a method for preparing asphalt modified auxiliary agents. Background technique [0002] The asphalt steel bridge deck pavement structure is a thin layer of asphalt pavement (usually 5-10cm) paved on the steel bridge deck. Sex and other aspects play a vital role. [0003] Most of the currently used asphalt binders for bridge deck pavement are epoxy asphalt, or composite modification of rubber powder and SBS (styrene-butadiene-styrene block copolymer), or rock asphalt and lake asphalt Composite modification of road petroleum asphalt. [0004] As an excellent asphalt modifier, SBS can improve the high and low temperature performance of asphalt to a certain extent. However, if it works alone, the dosage is usually large, and its price is high. More workers hope to find its substitute. [0005] Therefore, it is necessary to develo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/02C08L27/06C08L27/24C08L95/00C08K13/02C08K3/34C08K5/098
Inventor 李琪
Owner 湖州华仑助剂科技有限公司
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