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Resinified asphalt binder production process

A technology of asphalt bonding and production process, which is applied in the direction of asphalt material adhesives, adhesives, adhesive types, etc., can solve the problems of irritating odor, corroding skin, toxicity, etc., and achieve no odor, low cost and high production process simple effect

Inactive Publication Date: 2017-05-03
HUNAN CHELON ENVIRONMENTAL SCI&TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Asphalt binder has good curing effect and low cost, but asphalt contains a large amount of phenolic substances, which have pungent odor, poisonous, carcinogenic, and corrosive to the skin, especially the content of coal tar pitch is extremely high, and some medium-temperature coal The content of tar is as high as 18%, which is the most obvious harmful component in asphalt

Method used

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Experimental program
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Embodiment Construction

[0011] The technical solutions of the present invention are described below to facilitate the understanding of those skilled in the art.

[0012] A kind of production technology of resinized asphalt binder, comprises the steps:

[0013] (1) Firstly, a thermoplastic or thermosetting resole phenolic resin can be produced at 162°C through a sufficient amount of formaldehyde, paraformaldehyde, and acid-base catalyst;

[0014] (2) Add a certain amount of urea to react with incompletely reacted formaldehyde and paraformaldehyde to generate a first-stage urea-formaldehyde resin;

[0015] (3) Stir at a constant temperature of 90°C for 3 hours and then heat to 105°C for dehydration to form a mixture of B-stage phenolic formaldehyde, urea-formaldehyde, and asphalt;

[0016] (4) Add a certain amount of stabilizer, dispersant, and solid inhibitor and then cool and seal for preservation;

[0017] (5) Packaging.

[0018] Generally, acidic catalysts catalyze thermoplastic asphalt binders,...

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PUM

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Abstract

The invention discloses a resinified asphalt binder production process, which comprises: (1) generating a thermoplastic or thermosetting resol at a certain temperature through excess formaldehyde, s-Trioxane and an acid-alkali catalyst; (2) adding a certain amount of urea, and reacting with the incompletely-reacting formaldehyde and the incompletely-reacting s-Trioxane to generate the resol; (3) carrying out constant temperature stirring for a certain time, heating to a certain temperature, and dewatering to form the mixture of resitol, urea formaldehyde and asphalt; and (4) adding a certain amount of a stabilizer, a dispersant, and a curing inhibitor, cooling, and carrying out sealed storage. According to the present invention, the resinified asphalt binder production process is simple and has the low cost, and the product is relatively stable and does not produce the odor after the curing, and is the environment-friendly adhesion material.

Description

technical field [0001] The invention belongs to the field of curing materials, and in particular relates to a production process of a resinized asphalt binder. Background technique [0002] At present, the existing adhesives generally have problems such as not being environmentally friendly, unstable in curing, and having peculiar smell. Asphalt binder has good curing effect and low cost, but asphalt contains a large amount of phenolic substances, which have pungent odor, poisonous, carcinogenic, and corrosive to the skin, especially the content of coal tar pitch is extremely high, and some medium-temperature coal The content of tar is as high as 18%, which is the most obvious harmful component in asphalt. Contents of the invention [0003] Aiming at the deficiencies of the above-mentioned prior art, the present invention provides a production process of a resinized asphalt binder with low cost, relatively stable after curing, and no peculiar smell. [0004] In order to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J195/00C09J161/06C09J161/24C09J11/04
Inventor 江国防赵建明龙湘云赵倩怡
Owner HUNAN CHELON ENVIRONMENTAL SCI&TECH CO LTD