A kind of second-stage epoxy adhesive layer oil, preparation method and application method thereof

A technology of epoxy viscous oil and viscous oil, applied in the direction of online phenolic epoxy resin adhesives, non-polymer adhesive additives, bridges, etc., can solve complex construction, low temperature stability of cast asphalt, Adhesion problems are not resolved, etc.

Active Publication Date: 2022-03-08
JIANGSU SINOROAD TRANSPORTATION SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This scheme is mainly used in the construction of pouring asphalt mixture, and it is used in the pavement of steel bridge decks such as the Tsing Ma Bridge in Hong Kong, the Maanshan Yangtze River Bridge, and the Hong Kong-Zhuhai-Macao Bridge. Although the overall application effect is good, this scheme is only applicable to Cast asphalt pavement, and the number of waterproof bonding layers is as many as 4, so the construction is more complicated; on the other hand, due to the low temperature stability of poured asphalt, it is generally only used as the lower layer of steel bridge deck pavement, acrylic (ester) ) is not suitable as a bonding layer, so the bonding problem between the upper and lower layers of pavement is still not resolved

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  • A kind of second-stage epoxy adhesive layer oil, preparation method and application method thereof
  • A kind of second-stage epoxy adhesive layer oil, preparation method and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Put 1 part (molar amount) of hexamethylenediamine into the reactor, and raise the temperature to 80°C; slowly drop 2 parts (molar amount) of butyl glycidyl ether into the reactor, the dropping time is 2 hours, and the material temperature is 80°C, with a stirring rate of 60r / min, to obtain a linear bifunctional secondary amine curing agent; put 1 part (molar amount) of hydrazine hydrate into the reaction kettle, and raise the temperature to 70°C; The isopropanol solution of dimethyl diacid is slowly dropped into the reaction kettle, the dropping time is 2h, and the reaction is continued for 5h after the dropwise addition is completed, the material temperature is 70°C, the stirring speed is 60r / min, and an appropriate amount is added to the reaction kettle Xylene, then distill the azeotrope of xylene, water, hydrazine hydrate and alcohol under vacuum conditions, the organic acid hydrazide obtained is the high melting point latent curing agent;

[0042] Stir 80 parts of n...

Embodiment 2

[0045] Put 1 part (molar amount) of hexamethylenediamine into the reactor, and raise the temperature to 80°C; slowly drop 2 parts (molar amount) of butyl glycidyl ether into the reactor, the dropping time is 2 hours, and the material temperature is 80°C, with a stirring rate of 60r / min, to obtain a linear bifunctional secondary amine curing agent; put 1 part (molar amount) of hydrazine hydrate into the reaction kettle, and raise the temperature to 70°C; The isopropanol solution of dimethyl diacid is slowly dropped into the reaction kettle, the dropping time is 2h, and the reaction is continued for 5h after the dropwise addition is completed, the material temperature is 70°C, the stirring speed is 60r / min, and an appropriate amount is added to the reaction kettle Xylene, then distill the azeotrope of xylene, water, hydrazine hydrate and alcohol under vacuum conditions, the organic acid hydrazide obtained is the high melting point latent curing agent;

[0046] Stir 90 parts of n...

Embodiment 3

[0049] Put 1 part (molar amount) of decyl diamine into the reactor, and raise the temperature to 80°C; slowly drop 2 parts (molar amount) of octyl glycidyl ether into the reactor, the dropping time is 2 hours, and the material temperature is 80°C, with a stirring rate of 60r / min, to obtain a linear difunctional secondary amine curing agent; put 1 part (molar amount) of hydrazine hydrate into the reaction kettle, and raise the temperature to 70°C; The isopropanol solution of diethyl diacid is slowly dripped into the reaction kettle, the dropping time is 2h, and the reaction is continued for 5h after the dropwise addition is completed, the material temperature is 70°C, the stirring speed is 60r / min, and an appropriate amount of Xylene, then distill the azeotrope of xylene, water, hydrazine hydrate and alcohol under vacuum conditions, the organic acid hydrazide obtained is the high melting point latent curing agent;

[0050] Stir 80 parts of novolac polyglycidyl ether, 20 parts o...

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Abstract

The invention relates to a second-stage epoxy adhesive layer oil, a preparation method and an application method thereof, which are used for the (waterproof) adhesive layer in the field of road and bridge paving. The second-stage epoxy adhesive layer oil is composed of a main agent A and a curing agent B. The weight ratio of main agent A to curing agent B is 1~3:1; curing agent B includes 70~90 parts of linear difunctional secondary amine curing agent, 10~30 parts of high melting point latent curing agent and 1~5 parts Anti-settling agent. A new idea of ​​two-stage curing of epoxy adhesive oil is proposed, that is, the first stage is cured at room temperature, and the cured product is in a thermoplastic state, and the second stage is cured at 100-180°C, and the cured product is in a thermosetting state. It has completely solved the contradiction between sticking wheels and bonding of the road and bridge pavement bonding layer, and explored a new direction for the road and bridge pavement waterproof bonding layer materials such as steel bridge deck pavement, concrete bridge deck pavement and tunnel pavement in my country. .

Description

technical field [0001] The invention relates to an adhesive for road and bridge pavement, in particular to a second-stage epoxy adhesive layer oil, a preparation method and an application method thereof. Background technique [0002] There are two problems in the (waterproof) adhesive layer in the field of road and bridge pavement such as steel bridge deck pavement, concrete bridge deck pavement and tunnel pavement. One is how to increase the bond between the (waterproof) adhesive layer and the upper pavement performance; the second is how to reduce the damage to the (waterproof) bonding layer by paver, material truck, etc. during the construction process. There are often contradictions in the solution to these two problems: increasing the bonding performance often requires the (waterproof) adhesive layer to remain in an uncured state during the construction of the upper pavement, but the sticking of the construction machinery will destroy the (waterproof) adhesive layer. I...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J163/04C09J11/06E01D19/08E01D19/12E01D21/00
CPCC09J163/04C09J11/06E01D19/08E01D19/125E01D19/083E01D21/00C08K5/5435C09J2301/50C09J11/04C09J163/00
Inventor 张志祥李款潘友强陈李峰张辉莫剑臣
Owner JIANGSU SINOROAD TRANSPORTATION SCI & TECH CO LTD
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