A kind of water-based acrylic elastic emulsion and its preparation method and its application on asphalt pavement

A water-based acrylic and elastic emulsion technology, applied in the chemical industry, can solve the problem of cracks easily formed on asphalt pavement, and achieve the effects of not easy demulsification, lowering glass transition temperature and stable storage.

Active Publication Date: 2021-02-02
甘肃省公路交通建设集团有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of this invention is to provide a kind of water-based acrylic elastic emulsion, to solve the problem that the asphalt pavement is easy to form cracks

Method used

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  • A kind of water-based acrylic elastic emulsion and its preparation method and its application on asphalt pavement
  • A kind of water-based acrylic elastic emulsion and its preparation method and its application on asphalt pavement
  • A kind of water-based acrylic elastic emulsion and its preparation method and its application on asphalt pavement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A preparation method of water-based acrylic elastic emulsion, adding raw materials according to the following parts by weight and preparing according to the following steps:

[0031] Step 1. Preparation of acrylic acid seed emulsion: 6 parts of water-soluble monomer methyl methacrylate and 3 parts of threonine were mixed and stirred at 150r / min for 5 minutes, and then Na 2 CO 3 / NaHCO 3 0.5 parts of PH buffer, 1 part of CL-205 nonionic emulsifier and 0.5 parts of CL-207 anionic emulsifier, stirred for 10 minutes, and finally added 3.8 parts of oily monomer hexadecyl methacrylate, 3 parts of styrene 13 parts of butyl acrylate, 25 parts of isooctyl acrylate, and 3.2 parts of glycidyl tertiary carbonate, stirred at 300r / min for 30min to obtain acrylic seed emulsion, which was divided into two parts, the first part of the seed emulsion The ratio with the second part of the seed emulsion is 1: 2;

[0032] Step 2, preparation of acrylic acid pre-emulsion: add 0.5 parts of ...

Embodiment 2

[0035] A preparation method of water-based acrylic elastic emulsion, adding raw materials according to the following parts by weight and preparing according to the following steps:

[0036]Step 1. Preparation of acrylic acid seed emulsion: mix 6.5 parts of water-soluble monomer methyl methacrylate with 3.5 parts of threonine, stir at 200r / min for 3min, then add Na 2 CO 3 / NaHCO 3 0.3 parts of PH buffer, 1.5 parts of CL-205 nonionic emulsifier and 1 part of CL-207 anionic emulsifier, stirred for 5 minutes, and finally added 3 parts of oily monomer hexadecyl methacrylate, 3.5 parts of styrene 13.5 parts of butyl acrylate, 25.5 parts of isooctyl acrylate, and 3 parts of glycidyl tertiary carbonate, stirred at 250r / min for 45 minutes to obtain acrylic acid seed emulsion. The seed emulsion was divided into two parts, the first part of the seed emulsion The ratio with the second part of the seed emulsion is 1.5: 2;

[0037] Step 2. Preparation of acrylic acid pre-emulsion: Add 1 ...

Embodiment 3

[0040] A preparation method of water-based acrylic elastic emulsion, adding raw materials according to the following parts by weight and preparing according to the following steps:

[0041] Step 1. Preparation of acrylic acid seed emulsion: mix 7 parts of water-soluble monomer methyl methacrylate with 3.1 parts of threonine, stir at 180r / min for 4min, then add Na 2 CO 3 / NaHCO 3 0.35 parts of PH buffer, 1.25 parts of CL-205 nonionic emulsifier and 0.55 parts of CL-207 anionic emulsifier, stirred for 8 minutes, and finally added 4 parts of oily monomer hexadecyl methacrylate, 3.1 parts of styrene part, 13.1 parts of butyl acrylate, 26 parts of isooctyl acrylate, and 3.5 parts of glycidyl tertiary carbonate, stirred at 280r / min for 40min to obtain an acrylic seed emulsion. The seed emulsion was divided into two parts, the first part of the seed emulsion The ratio with the second part of the seed emulsion is 1.25: 2;

[0042] Step 2. Preparation of acrylic acid pre-emulsion: A...

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Abstract

The invention discloses a water-based acrylic elastic emulsion, a preparation method thereof and an application thereof on asphalt pavement, which belongs to the field of chemical industry and solves the problem that cracks are easily formed on asphalt pavement. The present invention comprises 6-7 parts of methyl methacrylate, 3-3.5 parts of threonine, Na 2 CO 3 / NaHCO 3 1.5-2 parts of buffer, 3-5 parts of emulsifier, 3-4 parts of hexadecyl methacrylate, 3-3.5 parts of styrene, 13-13.5 parts of butyl acrylate, 25-26 parts of isooctyl acrylate 3-3.5 parts of glycidyl tert-carbonate, 1-2 parts of benzoyl peroxide, 2-3 parts of tert-butyl benzoyl peroxide, and 30-35 parts of water. Preparation method: prepare acrylic seed emulsion; prepare acrylic pre-emulsion; prepare acrylic elastic emulsion. The invention has uniform and narrow particle size distribution, can be stored at room temperature for 3 years without delamination, and has excellent shear resistance and low temperature resistance.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a water-based acrylic elastic emulsion, a preparation method thereof and an application thereof on asphalt pavement. Background technique [0002] At present, more and more asphalt pavements are used on expressways, and cement pavements have basically disappeared. The development of asphalt pavements has attracted more and more attention from road planning and maintenance personnel, and the requirements for materials are getting higher and higher, requiring them to exhibit sufficient high temperature Stability, low temperature crack resistance, good water stability, long-lasting aging resistance and good skid resistance for safety. However, there are still many deficiencies in various asphalt materials, which are prone to various forms of cracks. Therefore, environmentally friendly, water-based emulsion-type low-temperature cracking-resistant pavement construction mat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/18C08F220/14C08F212/08C08F2/26C08F2/28C08F2/30C08K5/17C04B26/26
CPCC04B26/26C08F2/26C08F2/28C08F2/30C08F220/18C08K5/175C04B14/02C04B24/26
Inventor 李栋张富奎苏凯杨小森魏定邦赵静卓王晖魏小龙
Owner 甘肃省公路交通建设集团有限公司
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