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A kind of water-based interface agent for cement highway joint and its preparation method and application

An interface agent, highway technology, applied in the direction of adhesives, etc., can solve the problems of inconvenient construction, strong smell, unfriendly environment and construction personnel, etc., and achieve the effect of increasing the bonding strength

Active Publication Date: 2020-06-09
江苏超力建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the inconvenience of construction of the above caulking materials, and the use of isocyanate in the raw materials, the ready-made odor of construction and curing is strong, and the problem that it is not friendly enough to the environment and construction personnel, this application discloses a water-containing one-component adhesive, which does not use Isocyanate, odorless on construction and curing site, friendly to the environment and construction personnel, water-based interface agent for cement road joints

Method used

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  • A kind of water-based interface agent for cement highway joint and its preparation method and application
  • A kind of water-based interface agent for cement highway joint and its preparation method and application
  • A kind of water-based interface agent for cement highway joint and its preparation method and application

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Effect test

Embodiment 1

[0034] A preparation method of a water-based interface agent for cement highway joints, comprising the following steps:

[0035] (1) Add 2.00g (0.015mol) of diisopropanolamine in a three-necked flask equipped with a thermometer and a constant pressure funnel, then add 5.0 mL of dimethylformamide to fully dissolve diisopropanolamine; get 1.68g (0.015mol) citraconic anhydride was placed in a beaker containing 4.0 mL of dimethylformamide. After the citraconic anhydride was completely dissolved, the citraconic anhydride solution was transferred to a constant pressure dropping funnel, and added dropwise within 30 min. The intermediate product AB was obtained after 4 h of reaction at room temperature under stirring conditions 2 monomer;

[0036] (2) Weigh 0.61 g (0.005 mol) of tris(hydroxymethyl)aminomethane as the nuclear molecule (tris(tris(hydroxymethyl)aminomethane and AB) 2 The mol ratio of the monomer is 1:3), after fully dissolving with dimethylformamide, add in the there-n...

Embodiment 2

[0040] A preparation method of a water-based interface agent for cement highway joints, comprising the following steps:

[0041] (1) Add 2.67g (0.02mol) of diisopropanolamine in a three-necked flask equipped with a thermometer and a constant pressure funnel, then add 7.0 mL of dimethylformamide to fully dissolve diisopropanolamine; get 2.24g (0.02mol) citraconic anhydride was placed in a beaker containing 5.0 mL of dimethylformamide. After the citraconic anhydride was completely dissolved, the citraconic anhydride solution was transferred to a constant pressure dropping funnel, and added dropwise within 30 min. The intermediate product AB was obtained after 4 h of reaction at room temperature under stirring conditions 2 monomer;

[0042] (2) Weigh 0.85g (0.007mol) of tris(hydroxymethyl)aminomethane as the core molecule (tris(tris(hydroxymethyl)aminomethane and AB) 2 The mol ratio of the monomer is 1:3), after fully dissolving with dimethylformamide, add in the there-necked f...

Embodiment 3

[0046] A preparation method of a water-based interface agent for cement highway joints, comprising the following steps:

[0047] (1) Add 4.00g (0.03mol) of diisopropanolamine in a three-necked flask equipped with a thermometer and a constant pressure funnel, then add 10.0 mL of dimethylformamide to fully dissolve diisopropanolamine; get 3.36g (0.03mol) citraconic anhydride was placed in a beaker containing 8.0 mL of dimethylformamide. After the citraconic anhydride was completely dissolved, the citraconic anhydride solution was transferred to a constant pressure dropping funnel, and the addition was completed within 30 min. The intermediate product AB was obtained after 4 h of reaction at room temperature under stirring conditions 2 monomer;

[0048] (2) Weigh 0.40 g (0.0033 mol) of tris(hydroxymethyl)aminomethane as the core molecule (tris(tris(hydroxymethyl)aminomethane and AB) 2 The mol ratio of the monomer is 1:9), after fully dissolving with dimethylformamide, add in th...

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Abstract

The invention relates to the field of functional auxiliaries, in particular to a water-based interface agent for a cement road seam. The preparation method comprises the following steps: reacting diisopropanolamine and equimolar citraconic anhydride to obtain AB2 monomers; enabling trismetyl aminomethane serving as core molecules and the AB2 monomers to obtain a hyperbranched polymer; enabling citraconic anhydride and the hyperbranched polymer to react to obtain the hyperbranched polymer of which the terminal is a carboxyl; enabling diethanol amine and the hyperbranched polymer of which the terminal is the carboxyl to react to obtain the hyperbranched polymer of which the terminal is a hydroxyl, namely, the water-based interface agent for the cement road seam. The prepared interface agent is the water-based interface agent; the water-based interface is non-toxic, tasteless, green and environment-friendly; a large amount of polar groups at the terminal of the water-based interface agent can be chemically bonded with a seam interface, so that the binding strength is enhanced; the water-based interface agent for the cement road seam is particularly suitable for being used as a seam material of water-based adhesive compound rubber strips.

Description

technical field [0001] The invention relates to the field of functional additives, in particular to a water-based interface agent for cement highway joints. The present application also discloses a preparation method and application of the water-based interface agent for cement highway joints. Background technique [0002] The concrete joint interface will have macro or micro structural defects due to cement hydration, resulting in pores in the joint interface, thereby reducing the contact area between the cement highway joint material and the joint interface, and thus reducing the joint material and the joint interface. The bonding strength of the joint material and the watertight and airtight protection effect of the joint material reduce the service life of the joint material to a certain extent. Therefore, the joint interface needs to be pretreated with an interface agent before the joint material is used. [0003] At present, the common interface agents for cement road...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00C09J187/00
CPCC08G83/005C08G83/006C09J187/00
Inventor 黄立军王傅巍寿崇琦佟莉王若臣
Owner 江苏超力建材科技有限公司