Environment-friendly colored antiskid pavement surface layer protective agent and preparation method thereof

A protective agent and environment-friendly technology, applied in the field of environment-friendly colored anti-skid pavement surface layer protective agent and its preparation, can solve the problems of insufficient pavement wear performance and the like

Active Publication Date: 2021-05-18
山西省交通科技研发有限公司 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to effectively overcome the problem of insufficient pavement wear performance caused by early grain loss of colored anti-skid pavement

Method used

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  • Environment-friendly colored antiskid pavement surface layer protective agent and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1. The preparation of the A component of the environment-friendly colored pavement surface protection agent:

[0032] 1) Extract castor oil (purity 99.5%), trimethylolpropane (TMP), dimethyl carbonate (DMC), HMDI, hydroxyethyl methacrylate and bismethylol butyric acid (DMBA) at 40°C Dry in a vacuum oven to remove moisture, then place in CaCl 2 Place in a desiccator at 25°C for 72 hours;

[0033] 2) Put 60 parts of HMDI in the reactor, adjust the reaction temperature to 70°C-75°C, and the stirring speed to 1500rpm, and pass N 2 Protection, N 2 A condensation recovery device at 5°C is installed at the outlet to collect the evaporated dimethyl carbonate (too high a reaction temperature will cause the molecular weight of the prepolymer to increase too fast, resulting in difficulty in subsequent graft modification. The reason for not adding a catalyst is to control the reaction rate ), then slowly drip the DMC solution that is dissolved with TMP and castor oil (containing...

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PUM

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Abstract

The invention discloses an environment-friendly colored antiskid pavement surface layer protective agent and a preparation method thereof. The surface layer protective agent is composed of a component A and a component B in a mass ratio of (1.2-1.5): 2; and when the surface layer protective agent is used, the component A and the component B are uniformly mixed and sprayed on the surface of a road surface. The surface layer protective agent adopts HMDI type isocyanate, so yellowing and pulverization caused by ultraviolet aging of isocyanate with a benzene ring structure can be prevented; and meanwhile, HMDI is lower in reaction activity and longer in operation time compared with isocyanate with a benzene ring structure, but is higher in reaction activity compared with HDI, so the problem that hard drying time is too long is avoided. Compared with a conventional colored antiskid pavement, a colored antiskid pavement added with the surface layer protective agent is remarkably improved in water damage resistance and fatigue test resistance.

Description

technical field [0001] The invention belongs to the technical field of road maintenance, and in particular relates to an environment-friendly colored anti-slip road surface protective agent and a preparation method thereof. Background technique [0002] According to the different adhesives used in colored anti-skid pavement, it is mainly divided into three categories: epoxy-based colored anti-skid pavement, polyurethane-based colored anti-skid pavement and MMA type colored anti-skid pavement. At present, the main problems of most colored non-slip pavements include early cracking, early grain loss, insufficient water damage and fatigue resistance, and cannot be combined with multiple functions. Moreover, the colored anti-skid roads currently used in the market are seriously polluted and emit a lot of VOCs. However, in the past few decades, in the process of vigorously developing the transportation industry in my country, insufficient attention has been paid to the environmen...

Claims

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Application Information

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IPC IPC(8): C09D151/08C09D163/00C08F283/00C08F220/14
CPCC08F283/008C09D151/08C08F220/14C08L63/00
Inventor 穆建青蔡丽娜原国华付国茂谢邦柱郭东红张俊豪王敬吕船姚剑尹剑王俊朱江赵建智邓皇根
Owner 山西省交通科技研发有限公司
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