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Low-freezing-point coating material for road, and preparation method thereof

A coating material, freezing point technology, applied in coatings, asphalt coatings, climate change adaptation, etc., to achieve the effects of shortening drying time, good workability, and improved wear resistance

Active Publication Date: 2021-10-01
SHANDONG JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Table 1. Classification and deficiencies of existing snow removal and ice melting technologies

Method used

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  • Low-freezing-point coating material for road, and preparation method thereof
  • Low-freezing-point coating material for road, and preparation method thereof
  • Low-freezing-point coating material for road, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Example 1: Preparation of temperature-adjusted modified masterbatch

[0059] Table 3 Modified masterbatch material ratio and parameter control

[0060]

[0061] Material Description:

[0062] Oleic acid: molecular weight 282.46, melting point 13-14°C;

[0063] Palmitoleic acid: molecular weight 254.41, melting point 0.5°C;

[0064] Soybean oleic acid: 280≤molecular weight≤284, melting point 15℃.

[0065] 【Preparation】

[0066] Add the main solvent II and anti-penetration agent in the formula amount into a small reaction kettle, stir at 50°C for 20 minutes to dissolve completely, then add silane coupling agent and temperature regulating agent in turn, maintain the temperature and continue stirring for 40 minutes, and naturally drop to After room temperature, ultrasonically treat for a certain period of time to obtain activated temperature-adjusted modified masterbatches, which are respectively recorded as masterbatch 1, masterbatch 2, masterbatch 3, masterbatch 4,...

Embodiment 2

[0067] Example 2: Preparation of low freezing point coating materials for roads.

[0068] Table 4 Material ratio of coating materials

[0069]

[0070] Material Description:

[0071] Qingchuan Rock Asphalt: Penetration 3 (0.1mm) at 25°C, softening point 220°C;

[0072] 50# asphalt: at 25°C, the penetration is 45 (0.1mm), and the softening point is 67°C;

[0073] 40# asphalt: at 25°C, the penetration is 38 (0.1mm), and the softening point is 70°C;

[0074] 30# asphalt: at 25°C, the penetration is 28 (0.1mm), and the softening point is 72°C.

[0075] 【Preparation】

[0076] A1. Heating the asphalt binder to 135°C, and then cooling to maintain a fluid and transportable state to obtain component A;

[0077] A2. Mix the main solvent 1 with the temperature-adjusted modified masterbatch at a temperature of 50°C and stir evenly to obtain component B;

[0078] A3. Slowly add component A to the main mixer of component B and mix, then add stabilizer, drier, and functional filler ...

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Abstract

The invention discloses a low-freezing-point coating material for a road, and a preparation method thereof, and belongs to the field of road engineering. The coating material is prepared from a main solvent I, an asphalt cement, a functional filler, a temperature-adjusting modified master batch and a stabilizer according to a specific ratio, the Brookfield viscosity of the coating material at 20 DEG C is 2000-4000 cPs, and the freezing point of the coating surface tested by an indoor test is less than or equal to -3.0 DEG C. Compared with the prior art, the coating material disclosed by the invention can obviously reduce the freezing point of the road surface through heat absorption and conduction, realizes the effects of less freezing and easy deicing, improves the skid resistance of the road in snowy days in winter, ensures the driving safety, is simple and convenient in implementation process and stable in performance, and has very good popularization and application values.

Description

technical field [0001] The invention relates to the field of road engineering, and specifically provides a road-use low-freezing-point coating material and a preparation method thereof. Background technique [0002] After the rain and snow in winter, the accumulated water and snow on the road surface are easy to freeze in the low temperature environment, resulting in a sharp decline in the anti-skid performance of the road. Driving on ice and snow roads is very easy to skid, and the emergency braking distance is greatly increased, which poses a serious threat to the life and property safety of pedestrians and vehicles, easily causes serious traffic jams and induces a series of traffic accidents. Therefore, many countries attach great importance to the research and application of road anti-ice and snow technology. Europe, America, Japan and other countries started earlier in the research and application of road ice and snow removal technology, and have done a lot of research...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D195/00C09D7/65C09D7/63C09D7/61C09D7/20
CPCC09D195/00C09D7/65C09D7/63C09D7/61C09D7/20C08L2201/08C08L25/06C08L91/06C08K5/103C08K5/09C08K5/5425C08K3/34C08K3/36Y02A30/60
Inventor 王君邱昌春王春林李振丰张建民于建国
Owner SHANDONG JIAOTONG UNIV
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