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Organic composite nanometer modified asphalt additive and preparation method and application thereof

A kind of asphalt additive and nano-modification technology, which is applied in the direction of building components, building insulation materials, buildings, etc., can solve the problems of lowering the construction temperature, and achieve the effects of avoiding waste, improving the performance of modified asphalt, and mature production technology

Inactive Publication Date: 2018-10-16
新乡市龙腾路用材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Patent CN102061098A discloses a warm-mix modifier for asphalt mixture and its preparation method, which is composed of a certain proportion of Fischer-Tropsch wax, an organic compound that improves low-temperature flexibility and its synthetic resin, taking into account the low-temperature performance of asphalt, However, this kind of warm-mixing modifier is only the pre-dispersion of Fischer-Tropsch wax in organic compounds and their synthetic resins, relying on the lubrication of molten Fischer-Tropsch wax for asphaltene and colloids to reduce the construction temperature

Method used

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  • Organic composite nanometer modified asphalt additive and preparation method and application thereof
  • Organic composite nanometer modified asphalt additive and preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0023] Example 1 An organic nanocomposite modified asphalt additive is composed of the following raw materials in parts by mass: 100 parts of nano powder, 30 parts of SLD wax, and 30 parts of plasticizer; the nano powder is nano-montmorillonite, The SLD base wax is preferably an alkane wax synthesized from hydrocarbon-based synthesis gas and natural gas based on the Fischer-Tropsch process, with a softening point of 95-110°C, and the plasticizer is dioctyl phthalate (DOP).

[0024] The preparation method of this example additive comprises the steps:

[0025] 1. Dry 100 parts of nano-montmorillonite until the moisture content is not greater than 0.05%;

[0026] 2. Heat 30 parts of dioctyl phthalate (DOP) to 120-130 ° C, add 29.34 parts of Fischer-Tropsch wax, 0.6 parts of MAH, and 0.06 parts of DTBP in sequence, and continue to heat up to 130 ± 1 during stirring SLD wax solution was obtained at 5°C.

[0027] 3. The liquid obtained in step 2 is atomized and sprayed into the na...

Embodiment 2

[0029] Example 2 An organic nanocomposite modified asphalt additive is composed of the following raw materials in parts by mass: 100 parts of nano powder, 45 parts of SLD wax, and 45 parts of plasticizer; the nano powder is nano calcium carbonate, SLD The base wax is preferably an alkane wax synthesized from hydrocarbon-based synthesis gas and natural gas based on the Fischer-Tropsch process, with a softening point of 95-110°C, and the plasticizer is epoxy fatty acid methyl ester.

[0030] The preparation method of this example additive comprises the steps:

[0031] 1. Dry 100 parts of nano-montmorillonite until the moisture content is ≯0.05%;

[0032] 2. Heat 45 parts of epoxy fatty acid methyl ester to 120-130°C, add 44 parts of Fischer-Tropsch wax, 0.9 part of MAH, and 0.09 part of DTBP in sequence, and continue to heat up to 130±5°C during stirring to obtain SLD wax liquid.

[0033] 3. The liquid obtained in step 2 is atomized and sprayed into the nano-calcium carbonate ...

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Abstract

The invention discloses an organic composite nanometer modified asphalt additive and a preparation method and application thereof. The preparation method of the organic composite nanometer modified asphalt additive comprises the following steps of heating 20 to 40 parts of plasticizer to 120 to 150 DEG C; adding 10 to 50 parts of SLD olefin wax, uniformly mixing, atomizing, and spraying 100 partsof inorganic nanometer powder; stirring, or rolling and granulating, so as to obtain the particle of 1 to 5mm, namely the organic composite nanometer modifier. The organic composite nanometer modifiedasphalt additive has the advantages that when the prepared organic composite nanometer modified asphalt additive is used for the shearing type production of modified asphalt, the asphalt material iscompositely modified by the SLD and the plasticizer, and the high-temperature track-resistant capacity and low-temperature plasticity of the modified asphalt are improved by a large margin; under thequantum effect, small size effect, surface effect and interface effect of the nanometer powder, the coating capacity and anti-aging property of the asphalt material to the stone material are greatly improved.

Description

technical field [0001] The invention relates to the technical field of asphalt modification, in particular to an organic composite nano-modified asphalt additive and its preparation method and application. Background technique [0002] Asphalt concrete pavement has good mechanical properties and driving comfort. Improving the quality of asphalt binder is an important guarantee for the durability of asphalt pavement, and it is also an important measure to reduce and reduce the disease of asphalt pavement. modified. At present, the mainstream SBS modified asphalt, rubber modified asphalt and other production processes are relatively mature, and have been widely promoted and applied in highway construction and maintenance. However, the existing pavement structure still has early defects such as rutting, wrapping, cracking, and spalling to varying degrees. The lack of ability of existing modified asphalt to resist high and low temperature diseases, insufficient adhesion of mod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L53/02C08L91/06C08L19/00C08K3/34C08K5/12
CPCC08K2201/011C08L95/00C08L2201/08C08L2205/03C08L53/02C08L91/06C08L19/003C08K3/346C08K5/12
Inventor 郭之宁鲁培行胡海宏
Owner 新乡市龙腾路用材料有限公司
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