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A kind of production method of uncured asphalt paint

A kind of asphalt paint and production method technology, applied in the direction of asphalt paint, coating, etc., can solve the problems of being difficult to disperse, easy to agglomerate, and short storage period, and achieve the effect of easy mechanical spraying, low viscosity, and uniform dispersion

Active Publication Date: 2020-09-01
苏州凯伦高分子新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since most of the modifiers are rubber materials, they are easy to agglomerate in asphalt and not easy to disperse, so the modification effect cannot be optimal. If mechanical equipment is used for spraying during construction, the spray gun will be easily blocked.
[0003] Especially in the low-temperature spraying non-curing asphalt waterproof coating developed on the market in recent years, the main modifier used is powdered styrene-butadiene rubber SBR, which has a short storage period and is easy to absorb water and agglomerate in the air. When it is put into asphalt, hard to spread out
The existing non-curing asphalt coating production method is difficult to fundamentally solve the problem of modifier agglomeration. At the same time, in order to melt the agglomerated SBR and other rubber modifiers, the melting temperature is often raised to above 190 ° C during production. Not only High energy consumption, large smoke, not environmentally friendly, great harm to the environment, and also harmful to operators

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] This embodiment provides a kind of production method of non-curable asphalt paint, in parts by mass, the raw material of described non-curable asphalt paint comprises 35 parts of asphalt, 20 parts of base oil, 5 parts of rubber modifier, modified nano gas phase II 4 parts of silicon oxide, 2 parts of ethylene bis stearic acid amide, 5 parts of dispersant, 29 parts of filler;

[0031] The production method comprises the steps of: weighing each raw material according to the formula, modifying the asphalt, the base oil, the modified nano fumed silica, the ethylene bis stearic acid amide and the rubber Mixing agent to obtain asphalt mixture, then feed the asphalt mixture into the co-rotating twin-screw extruder through the main feed port for dispersing and shearing, and then feed the filler and the dispersant through one of the side feeding Feed ports are added together in the co-rotating twin-screw extruder, mixed and extruded to obtain the non-curable asphalt coating;

...

Embodiment 2

[0038]This embodiment provides a production method of a non-curable asphalt paint, in parts by mass, the raw materials of the non-curable asphalt paint include 50 parts of asphalt, 15 parts of base oil, 6 parts of rubber modifier, modified nano gas phase two 6 parts of silicon oxide, 2 parts of ethylene bis stearic acid amide, 6 parts of dispersant, 15 parts of filler;

[0039] The production method comprises the steps of: weighing each raw material according to the formula, modifying the asphalt, the base oil, the modified nano fumed silica, the ethylene bis stearic acid amide and the rubber Mixing agent to obtain asphalt mixture, then feed the asphalt mixture into the co-rotating twin-screw extruder through the main feed port for dispersing and shearing, and then feed the filler and the dispersant through one of the side feeding Feed ports are added together in the co-rotating twin-screw extruder, mixed and extruded to obtain the non-curable asphalt coating;

[0040] Wherei...

Embodiment 3

[0046] This embodiment provides a production method of a non-curable asphalt paint. In terms of parts by mass, the raw materials of the non-curable asphalt paint include 40 parts of asphalt, 20 parts of base oil, 8 parts of rubber modifier, modified nano gas phase two 5 parts of silicon oxide, 2 parts of ethylene bis stearic acid amide, 8 parts of dispersant, 17 parts of filler;

[0047] The production method comprises the steps of: weighing each raw material according to the formula, modifying the asphalt, the base oil, the modified nano fumed silica, the ethylene bis stearic acid amide and the rubber Mixing agent to obtain asphalt mixture, then feed the asphalt mixture into the co-rotating twin-screw extruder through the main feed port for dispersing and shearing, and then feed the filler and the dispersant through one of the side feeding Feed ports are added together in the co-rotating twin-screw extruder, mixed and extruded to obtain the non-curable asphalt coating;

[00...

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Abstract

The invention discloses a production method of non-curable asphalt paint. The production method adopts mixing equipment such as a co-rotating twin-screw extruder with specific parameters instead of acommon reaction kettle and specifically comprises the following steps: mixing asphalt, base oil, a temperature resistance additive and a rubber modifier, so as to obtain an asphalt mixture; adding theasphalt mixture into the co-rotating twin-screw extruder through a main feeding hole and dispersing the asphalt mixture; and adding a filler into the co-rotating twin-screw extruder through one of side feeding holes, mixing and performing extrusion, so as to obtain the non-curable asphalt paint. The production method has the advantages that the output quantity of smoke is reduced by reducing thetemperature from 190 DEG C to below 170 DEG C; and the rubber modifier such as SBR (styrene butadiene rubber) that are more difficult to disperse uniformly can be dispersed uniformly, so that the comprehensive performance of a paint product is promoted.

Description

technical field [0001] The invention belongs to the field of waterproof coatings, and in particular relates to a production method of non-curing asphalt coatings. Background technique [0002] Non-curing asphalt waterproof coatings are generally produced with a reactor. Add asphalt or base oil into the reactor, heat up to a certain temperature, add modifiers, and then use a high-speed disperser or ordinary frame or ribbon to stir. dispersion. However, since most of the modifiers are rubber materials, they are easy to agglomerate in the asphalt and are not easy to disperse, so the modification effect cannot be optimal. If mechanical equipment is used for spraying construction during the construction process, the spray gun is easy to be blocked. [0003] Especially in the low-temperature spraying non-curing asphalt waterproof coating developed on the market in recent years, the main modifier used is powdered styrene-butadiene rubber SBR, which has a short storage period and i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D195/00C09D7/61C09D7/62C09D7/65
CPCC08K2201/011C09D7/61C09D7/62C09D7/65C09D195/00C08L9/06C08K9/04C08K3/36C08K3/34
Inventor 李忠人赵祖兵陈进华信立军
Owner 苏州凯伦高分子新材料科技有限公司