Composite stabilizer for SBS modified asphalt

A composite stabilizer and modified asphalt technology, which is applied in building components, building insulation materials, buildings, etc., can solve the problems of poor high temperature storage stability and lack of road performance of SBS modified asphalt, and achieve high temperature rutting resistance. Effect
CN104513489AActive Publication Date: 2015-04-15山西省交通科技研发有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
山西省交通科技研发有限公司
Publication Date
2015-04-15
Patent Text Reader

Abstract

The invention relates to a composite stabilizer for SBS modified asphalt. The composite stabilizer comprises the following components in parts by mass: 30 to 60 parts of a cross-linking agent, 10 to 40 parts of an accelerator, 10 to 20 parts of an activating agent and 5 to 20 parts of a compatilizer, wherein the cross-linking agent is one or more of sulfur, dithiomorpholine, polyphosphoric acid and maleic anhydride; the accelerator is one or more of tetraethylthiuram disulfide, 2-mercaptobenzothiazole, benzoyl peroxide, dicumyl peroxide and sodium isopropyl xanthate. Compared with the prior art, the composite stabilizer has the advantages that after the composite stabilizer is added into the SBS modified asphalt, the problem that the high-temperature storage stability of the SBS modified asphalt is poor is well solved, the performances such as high-temperature and low-temperature stability and water stability of an asphalt mixture are comprehensively improved, and high-temperature anti-rutting performance, low-temperature anti-cracking performance, moisture damage resistance and ageing resistance are remarkably improved.
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Description

Technical field

[0001] The invention belongs to the technical field of modified asphalt additives, and specifically relates to a composite stabilizer for SBS modified asphalt. Background technique

[0002] Polymer-modified asphalt can greatly increase the service life of asphalt pavements. Its high-temperature resistance to flow and low-temperature resistance to cracking are significantly improved, its aging resistance and weather resistance are enhanced, its elasticity is greater, and its adhesion to stones is strong. Among the commonly used polymer modifiers, the asphalt modified by SBS does not soften at high temperatures, does not become brittle at low temperatures, has a wide operating temperature range, and has good mechanical properties, making it the most widely used polymer at home and abroad. Modifier, accounting for as much as 40% of the total amount of modifier.

[0003] However, the relative molecular mass, chemical structure and composition of SBS and asphalt are ver...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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