SBS modified asphalt stabilizer and preparation method thereof

A modified asphalt and stabilizer technology, which is applied in building components, building insulation materials, buildings, etc., can solve the problems of easy segregation of asphalt, unstable storage, slow cross-linking speed, etc., and achieve uniform dispersion, fast cross-linking speed, avoid caking effect

Active Publication Date: 2010-01-20
XIAN ZHONGLI ASPHALT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a kind of SBS modified asphalt stabilizer, the purpose is to solve the problem that SBS and matrix asphalt are easy to segregate and store unsta

Method used

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  • SBS modified asphalt stabilizer and preparation method thereof
  • SBS modified asphalt stabilizer and preparation method thereof
  • SBS modified asphalt stabilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0017] Example 1:

[0018] Add 0.8 g of sulfur powder with a particle size of 100 mesh to 200 mesh into the high-speed disperser, and add 0.2 g of aromatic heterocyclic multifunctional olefin monomer. The heterocyclic multifunctional olefin monomer is divinylbenzene and trimethylolpropane. Trimethacrylate, diallyl phthalate, diol dimethacrylate or triallyl isocyanurate, stir for 30 minutes to make the two evenly mixed, then add to the grinder, grind for 30 minutes, Go through a 100-mesh sieve, then add the premix to 100g of rubber oil, aromatic oil or furfural oil at 100°C, start shearing for 15 minutes, and then obtain the SBS modified asphalt stabilizer product.

Example Embodiment

[0019] Example 2:

[0020] Add 0.7 grams of sulfur to the mixer, add 0.3 grams of divinylbenzene or trimethylolpropane trimethacrylate, stir for 15 minutes to make the two evenly mixed, then add to the grinder, grind for 15 minutes, and pass through a 100 mesh sieve , And then add the premix to 100g, 100℃ aromatic oil, start shearing for 15min, and then get SBS modified asphalt stabilizer product.

[0021] During the cross-linking process of the stabilizer of this embodiment, the cross-linking speed is blocky, the dispersion is uniform, and there is no block.

Example Embodiment

[0022] Example 3:

[0023] The SBS modified asphalt stabilizer of the present invention is prepared from the following raw materials in parts by weight ratio: 1 g of sulfur, 0.5 g of diallyl phthalate or divinylbenzene, and 99 g of rubber oil. The preparation method is the same as in Example 1.

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Abstract

The invention discloses a stabilizer, in particular to a stabilizer used for SBS modified asphalt and a preparation method thereof; the stabilizer is prepared from the following raw materials according to the parts by weight: 0.5-5 parts of sulfur, 0.2-5 parts of aromatic heterocyclic multifunctional olefin monomers and 90-100 parts of aromatic heavy oils. The invention adopts sulfur as main reactant and aromatic heavy oils as dispersant; the reactant and the reaction promoter can be dissolved in the dispersant to promote the uniform mixing between the reactant and a reaction promoter, increase the uniformity of the reaction of the stabilizer and substrate asphalt and avoid the agglomerate phenomenon caused by locally over crosslinking; the heterocyclic multifunctional olefin monomers areused as the reaction promoter so as to increase the reaction efficiency of the main reactant and the crosslink rate. The invention solves the problems well that SBS is easy to separate from the substrate asphalt and the storage is not stable in the production process of SBS polymer modified asphalt.

Description

technical field [0001] The invention relates to a stabilizer, in particular to a stabilizer for improving the stability of SBS modified asphalt and a preparation method thereof. Background technique [0002] With the development of modern transportation, the requirements for road pavement are getting higher and higher, and the high temperature stability, low temperature crack resistance, low temperature deformation ability, low temperature ductility, cohesive adhesion, water stability, The skid resistance puts forward higher requirements, but the quality and quality of traditional base asphalt have been difficult to meet these requirements. [0003] It has been 130 years since the rubber-modified asphalt was first published in Britain in 1873. During these 130 years, various modifiers and their modified asphalt products have sprung up and developed rapidly. Among them, styrene butadiene block copolymer (SBS) stands out for its good high and low temperature road performance,...

Claims

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Application Information

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IPC IPC(8): C08K3/06C08K5/01C08K5/103C08K5/12C08K5/3492C08L95/00
Inventor 郭建民徐培华张晓宏张文军
Owner XIAN ZHONGLI ASPHALT CO LTD
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