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High wear-resistant sand mist-containing sealing layer material and its preparation method and application

A fog sealing material and aggregate technology, applied in the direction of coating, can solve the problems of poor wear resistance, difficult to meet the requirements of the open traffic time limit of municipal roads, etc., achieve fast curing time, suitable for industrial scale production, The effect of short curing time

Active Publication Date: 2020-08-04
重庆市智翔铺道技术工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the existing water-based mist sealant materials on the market have poor wear resistance, and it is difficult to meet the requirements of municipal road construction for the time limit for opening traffic

Method used

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  • High wear-resistant sand mist-containing sealing layer material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] The sand mist-containing sealing layer material is prepared from the following raw materials according to the following steps:

[0060] A. Raw material preparation

[0061] A1. Preparation of modified MMA resin: 60 parts of MMA (methyl methacrylate) monomer, 20 parts of vinyl acetate monomer, 20 parts of n-butyl acrylate monomer, 0.3% azobisisobutyronitrile, 0.5% of dioctyl phthalate and 0.4% of 2-hydroxy-4-n-octyloxybenzophenone were mixed and stirred evenly at 65°C, and reacted for 1h to obtain a modified MMA resin; wherein, the The percentages of azobisisobutyronitrile, dioctyl phthalate, and 2-hydroxy-4-n-octyloxybenzophenone are methyl methacrylate monomer, vinyl acetate monomer and acrylic n- The percentage of the total mass of butyl ester monomer;

[0062] A2. Weighing

[0063] Curing agent: take 2% dibenzoyl peroxide (BPO) of the quality of the modified MMA resin prepared in step A1 as the curing agent;

[0064] Matting agent: take by weighing 0.5% of the si...

Embodiment 2

[0070] The sand mist-containing sealing layer material is prepared from the following raw materials according to the following steps:

[0071] A. Raw material preparation

[0072] A1. Preparation of modified MMA resin: 60 parts of MMA (methyl methacrylate) monomer, 40 parts of comonomer vinyl acetate, 40 parts of comonomer isobutyl acrylate, 0.5% of azobisisobutyl Nitrile, 1% polybutylene terephthalate, and 1% 2,4,6-tri-tert-butylphenol were mixed and stirred evenly at 65°C, and reacted for 1h to obtain a modified MMA resin; wherein, the The percentages of azobisisobutyronitrile, polybutylene terephthalate and 2,4,6-tri-tert-butylphenol are methyl methacrylate monomer, vinyl acetate monomer and isobutyl acrylate The percentage of the total mass of ester monomers;

[0073] A2. Weighing

[0074] Curing agent: take 3% dibenzoyl peroxide (BPO) of the quality of the modified MMA resin prepared in step A1 as the curing agent;

[0075] Matting agent: take by weighing 0.5% titaniu...

Embodiment 3

[0081] The sand mist-containing sealing layer material is prepared from the following raw materials according to the following steps:

[0082] A. Raw material preparation

[0083] A1. Preparation of modified MMA resin: 100 parts of MMA (methyl methacrylate) monomer, 20 parts of comonomer vinyl acetate monomer, 20 parts of comonomer neobutyl acrylate monomer, 0.3% of Azodiisobutyronitrile, 0.8% polypropylene glycol diglycidyl ether and 0.8% p-tert-butylphenol were mixed and stirred evenly at 65°C, and reacted for 2 hours to obtain a modified MMA resin; wherein, the azobisiso The percentages of nitrile, polypropylene glycol diglycidyl ether and p-tert-butylphenol are the percentages of the total mass of methyl methacrylate monomer, vinyl acetate monomer and neobutyl acrylate monomer;

[0084] A2. Weighing

[0085] Curing agent: the modified MMA resin prepared according to step A1: the mass ratio of dibenzoyl peroxide (BPO) is 60:4, and dibenzoyl peroxide (BPO) is weighed as th...

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Abstract

The invention belongs to the technical field of compositions of asphalt materials, and particularly relates to a high-wear-resistance material with a sand fog sealing layer. The main component of thematerial with the sand fog sealing layer is modified methacrylic acid resin, and the modified methacrylic acid resin is composed of methyl methacrylate monomer, vinyl acetate monomer and butyl acrylate monomer and formed through copolymerization under the action of a catalyst, a flexibilizer and an anti-aging agent. The material is good in wear resistance and short in curing time.

Description

technical field [0001] The invention belongs to the technical field of asphalt material compositions, and in particular relates to a high wear-resistant sand-mist sealant material and its preparation method and application. Background technique [0002] As of the end of 2016, the total mileage of highways in my country reached 4.6963 million kilometers, and the mileage of highway maintenance reached 4.59 million kilometers, accounting for 97.7% of the total mileage of highways. Among them, the mileage of expressways opened to traffic exceeded 120,000 kilometers, ranking first in the world. The huge market demand of the maintenance industry. [0003] The total mileage of my country's highways has increased year by year, realizing a major leap from "initial connectivity" to "coverage network". However, with the increasing traffic volume, load capacity and increasingly harsh natural environment and climate factors, the original asphalt pavement has appeared such as cracks, ruts...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/12C09D7/61C09D7/63C09D7/65C08F220/14C08F218/08C08F220/18
CPCC08F220/14C08K2003/3045C08K2201/014C08L2205/03C09D7/61C09D7/63C09D7/65C09D133/12C08K13/02C08K5/07C08K5/12C08K3/36C08K3/30C08L67/02C08K3/22C08K3/346C08K3/34C08K5/13C08L63/00C08L23/06C08F218/08C08F220/1804
Inventor 徐建晖郝增恒王杰代剑锋陈诚王民
Owner 重庆市智翔铺道技术工程有限公司
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