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Styrene-butadiene latex for road emulsified asphalt modification and preparation method thereof

A kind of technology of styrene-butadiene latex and emulsified asphalt

Active Publication Date: 2016-08-10
CHANGZHOU LINGDA CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] A technical problem to be solved by the present invention is: based on the above problems, the present invention provides a large particle size, high solid content, cationic styrene-butadiene latex that can be cross-linked at room temperature and prevents the migration of amine and polyamine cationic emulsifiers and its preparation method , when used to prepare modified emulsified asphalt for roads, this product maintains the original characteristics of styrene-butadiene latex for road emulsified asphalt modification, and at the same time significantly reduces the rainwater leaching of modified emulsified asphalt pavement, reducing environmental water pollution. Increase the service life of the pavement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0053] Embodiment: Preparation of styrene-butadiene latex for road emulsified asphalt modification:

[0054] a. Emulsion polymerization:

[0055] The raw material is composed of the following components by weight:

[0056] 76 parts of butadiene, 24 parts of styrene, 3 parts of glycidyl methacrylate, 1.5 parts of KH-151, 0.45 parts of dodecyl mercaptan, 1.2 parts of disproportionated potassium abietate, 0.3 parts of sodium oleate, nonyl 0.9 parts of phenol polyoxyethylene (12) ether, 0.5 parts of sodium hexametaphosphate, 0.24 parts of ammonium persulfate aqueous solution, 0.12 parts of sodium sulfite, 103 parts of deionized water (conductivity≤5μS / cm), 0.02 parts of N-isopropyl hydroxylamine , 0.01 part of sodium monomethyl dithiocarbamate;

[0057] Polymerization process:

[0058] Add 91 parts of deionized water, 0.9 parts of disproportionated potassium abietate, 0.23 parts of sodium oleate, 0.63 parts of nonylphenol polyoxyethylene ether (12), and 0.35 parts of sodium hex...

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Abstract

The invention relates to styrene-butadiene latex for road emulsified asphalt modification and a preparation method thereof .The styrene-butadiene latex for road emulsified asphalt modification is specifically compound styrene-butadiene latex .The compound styrene-butadiene latex is composed of modified styrene-butadiene latex and a cross-linking agent .The modified styrene-butadiene latex is large-particle-size high-solid-content cation styrene-butadiene latex .The cross-linking agent is 40% KH-560 silane coupling agent water emulsion .The modified styrene-butadiene latex is prepared through the production process of emulsion polymerization, residue removal and agglomeration, ion type conversion and centrifugal concentration .The modified styrene-butadiene latex keeps original characteristics of styrene-butadiene latex for road emulsified asphalt modification, is matched with the cross-linking agent added in the modified emulsified asphalt preparation process, can achieve room-temperature cross-linking, prevents amine and polyamine cationic asphalt emulsification agent migration, obviously reduces rainwater soluble substances of a modified emulsified asphalt road surface, reduces environment water pollution, and prolongs the service life of the road surface.

Description

technical field [0001] The invention relates to a styrene-butadiene latex for modifying road emulsified asphalt and a preparation method thereof. Background technique [0002] As of the end of 2014, the total mileage of highways in my country has exceeded 4.356 million kilometers, of which the total mileage of expressways has reached 108,000 kilometers, ranking second in the world after the United States. Asphalt pavement has been widely used in road construction in various regions due to its good paving, applicability, driving performance and maintenance properties. Among the completed expressway pavements, asphalt mixture pavement accounts for 90% %above. [0003] With the popularization and application of asphalt pavement and the arrival of the maintenance period of most expressway pavements, the maintenance of asphalt pavement has become a major difficulty and hot spot in my country's transportation industry. [0004] In recent years, my country has successively introd...

Claims

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Application Information

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IPC IPC(8): C08F236/06C08F212/08C08F220/32C08F230/08C08F2/28C08F2/38
CPCC08F236/06C08F212/08C08F220/32C08F230/08C08F2/28C08F2/38
Inventor 蒋国忠张立军蒋韶贤李昳王力军蒋红霞刘秀伟邓希平
Owner CHANGZHOU LINGDA CHEM
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