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Asphaltum composite modified by particles / polymers, and preparation method

A composite modified asphalt and nanoparticle technology, applied in building structures, building components, building thermal insulation materials, etc., can solve the problems of small improvement in high temperature performance and low temperature performance, and the effect of improvement is not obvious, etc. Extremely easy to formulate and produce effects

Inactive Publication Date: 2009-08-12
YANGZHOU UNIV
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Problems solved by technology

[0002] Asphalt is used as a surface paving material for roads. In the field of asphalt technology, on the one hand, for the application of nano-materials in asphalt, there has been a report by Liu Daliang, Changsha Jiaotong University, on the modification of asphalt with nano-calcium carbonate particles, which can make the matrix asphalt The performance has been improved, but it can be seen that the improvement effect is not very obvious, and the high-temperature performance and low-temperature performance have not been greatly improved; Modifier dose, temperature, rate and other process parameters depend on

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  • Asphaltum composite modified by particles / polymers, and preparation method

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Embodiment Construction

[0013] 1. Main equipment

[0014] Two mechanical mixers with a rotating speed of 1000-3000rpm.

[0015] 2. Preparation

[0016] Weigh 100g nanometer ZnO particles, 100g polymer SBS, 135g matrix pitch and 1700g solvent benzene.

[0017] 2. Operation method:

[0018] (A) Place the nano-ZnO particles, polymer SBS and matrix pitch in a mixer with a rotating speed of 1000-3000rpm at room temperature, and stir for 8-20h to make the nano-ZnO particles, polymer SBS and matrix pitch fully dissolved in the solvent benzene After dissolving, 2060g of asphalt mother liquor is made.

[0019] (B) The solvent benzene is recovered at a temperature of 70-100° C., and the above asphalt mother liquor is prepared into 360 g of a solid mother.

[0020] (C) Put 335g of solid matrix and 1675g of base asphalt in another mixer with a rotating speed of 1000-3000rpm and stir, and make the temperature in the mixer 160-175°C, and stir for 1-2 hours to achieve miscibility.

[0021] (D) Pump out the mis...

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Abstract

This invention discloses a method for preparing nanoparticles / polymer composite-modified asphalt. The method comprises: mixing ZnO nanoparticles, SBS, matrix asphalt and solvent benzene at a certain ratio, stirring uniformly to obtain asphalt mother liquor, recovering solvent benzene at 70-100 deg.C to obtain a solid, mixing with matrix asphalt at a weight ratio of 1:5, stirring uniformly at 160-175 deg.C, and developing at 120 plus and minus 5 deg.C for 2 plus and minus 0.1 h to obtain nanoparticles / polymer composite-modified asphalt. The nanoparticles / polymer composite-modified asphalt has such advantages as easy preparation, good properties and high ductility at 5 deg.C.

Description

technical field [0001] The invention relates to the technical field of road modified asphalt, and aims at inventing a nanoparticle / polymer composite modified asphalt and a preparation method thereof. Background technique [0002] Asphalt is used as a surface paving material for roads. In the field of asphalt technology, on the one hand, for the application of nano-materials in asphalt, there has been a report by Liu Daliang, Changsha Jiaotong University, on the modification of asphalt with nano-calcium carbonate particles, which can make the matrix asphalt The performance has been improved, but it can be seen that the improvement effect is not very obvious, and the high-temperature performance and low-temperature performance have not been greatly improved; Modifier dose, temperature, speed and other process parameters. [0003] How to prepare nanoparticle / polymer composite modified asphalt, whether the prepared nanoparticle / polymer composite modified asphalt can achieve the...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08K3/22C08L53/02
Inventor 肖鹏李雪峰
Owner YANGZHOU UNIV