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Thermoplastic butadiene styrene rubber aqueous rubber latex asphalt modifying agent and preparation thereof

A technology of asphalt modifier and thermoplastic styrene-butadiene, which is applied in building components, building insulation materials, construction, etc., can solve the problems of poor thermal storage stability, unstable quality, and high processing cost of modified asphalt, and achieve equipment saving The effect of investment, not easy to segregate, and low production cost

Inactive Publication Date: 2009-01-21
JILIN ZHENGJI TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention provides a thermoplastic styrene-butadiene rubber water-based latex asphalt modifier and a preparation method thereof to solve the problems existing in the current processing method of modified asphalt: it is easy to cause aging of materials; High cost; the processed modified asphalt has poor thermal storage stability and unstable quality

Method used

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  • Thermoplastic butadiene styrene rubber aqueous rubber latex asphalt modifying agent and preparation thereof

Examples

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Effect test

example 1

[0036] i) First add 25 grams of thermoplastic styrene-butadiene rubber SBS (1301-1), 32 grams of thermoplastic styrene-butadiene rubber SBS (4202) and 18 grams of thermoplastic styrene-butadiene rubber (SBS 1301-2) into a container containing 230 grams of chlorine In a propane beaker, heat up to 70°C and stir at a speed of 300-400 rpm to completely dissolve the thermoplastic styrene-butadiene rubber SBS, then add 2.5 grams of NP-6 and 4 grams of NP-18—this It is solution A; among them, SBS complies with the industry standard JTGF40-2004 of the People's Republic of China.

[0037] ii) Preparation of soap solution: in a beaker filled with 80 grams of water, slowly add 0.6 gram of water-soluble starch, and stir until completely dissolved, then add 6.3 gram of cationic surfactant cetyl trimethyl ammonium chloride , and then add 0.8 g of potassium chloride to the above solution, and stir until completely dissolved.

[0038] iii) First add a small amount of soap to solution A, star...

example 2

[0041] i) First, 55 grams of thermoplastic styrene-butadiene rubber SBS (1301-2) and 23 grams of thermoplastic rubber SIS (4211) are added to a beaker containing 120 grams of benzene and 130 grams of chloropropane, heated to 70 ° C, And stir at a speed of 300-400 rpm to completely dissolve the thermoplastic rubber SBS and SIS—this is solution A.

[0042] ii) Preparation of soap solution: in a beaker containing 80 grams of water, slowly add 0.6 gram of hydroxypropyl methylcellulose and 0.5 gram of water-soluble starch, and stir until all dissolve, then add 15 grams of cationic surfactant Octadecyltrimethylammonium chloride, and then add 0.5 g of potassium chloride to the above solution, and stir until completely dissolved.

[0043]iii) First add a small amount of soap to solution A, start the high-speed shear emulsification device, slowly add soap while cutting, and shear for 10 minutes at a speed of 3000 rpm, then, 8000 rpm Shear at rpm for 6 minutes.

[0044] iv) Finally, d...

example 3

[0046] i) First, add 30.4 grams of thermoplastic styrene-butadiene rubber SBS1301-1 solid into a beaker containing 150 grams of benzene, heat up to 70°C, and stir at a speed of 300-400 rpm to make the thermoplastic styrene-butadiene rubber The rubber SBS is completely dissolved, and then 0.7 g of nonylphenol polyoxyethylene ether NP-7 is added and stirred evenly, which is solution A.

[0047] ii) Preparation of soap solution: in a beaker containing 110 grams of water, slowly add 26.2 grams of water-soluble starch, and stir until completely dissolved, then, add 1.2 grams of cationic surfactant dodecyltrimethylammonium chloride , and then add 13 grams of potassium chloride to the above solution, and stir until completely dissolved.

[0048] iii) First add a small amount of soap to solution A, start the high-speed shearing device, slowly add soap while cutting, and cut for 10 minutes at a speed of 3000 rpm, and then cut it at a speed of 8000 rpm Cut down for 8 minutes.

[0049]...

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Abstract

The invention relates to a thermoplastic styrene-butadiene rubber water latex asphalt modifier and a preparation method thereof, belonging to the chemical engineering field. The modifier is made from the following raw materials in weight percentage: 10 to 70 percent of rubber, 0.1 to 30 percent of surfactant, 20 to 80 percent of water, 0.1 to 20 percent of natural polysaccharide polymer matter and 0.1 to 10 percent of electrolyte. The preparation method has the advantages of simplifying the production process of thermoplastic styrene-butadiene rubber SBS modified asphalt, saving equipment investment and simultaneously avoiding the material ageing phenomena caused when the thermoplastic styrene-butadiene rubber SBS modified asphalt is processed at a high temperature. Modified asphalt obtained by use of the modifier is stable in performance and difficult to segregate. The modifier can also be used in other aspects of the thermoplastic styrene-butadiene rubber SBS modified asphalt or modified emulsified asphalt.

Description

technical field [0001] The invention belongs to the field of chemical industry. It is the first time in China that thermoplastic styrene-butadiene rubber SBS or thermoplastic rubber SIS is made into water-based latex as an asphalt modifier, which is a typical liquid asphalt modifier. Background technique [0002] Thermoplastic styrene-butadiene rubber SBS or thermoplastic rubber SIS water-based latex is a kind of asphalt modifier, which improves the performance of asphalt, and is widely used in new construction, reconstruction or maintenance of urban roads, expressways, airport roads, cold regeneration of road surfaces, and deep surface treatment. Corrective and stress absorbing layers, etc. [0003] Styrene-butadiene-styrene block copolymerization to generate thermoplastic styrene-butadiene rubber (SBS) or thermoplastic rubber SIS modified asphalt has accounted for more than three quarters of all modified asphalt. At present, thermoplastic styrene-butadiene rubber SBS or t...

Claims

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Application Information

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IPC IPC(8): C08L53/02C08J3/03C08K3/24C08L95/00
Inventor 蔡海军陈淑宏吴广峰夏钢梁立
Owner JILIN ZHENGJI TECH DEV
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