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Interlayer bonding agent for spraying spray polyurea waterproof coating and preparation method thereof

A waterproof coating and adhesive technology, applied in the field of adhesive materials, can solve the problems of harmful production and construction workers' health, inaccurate construction site ratio, failure to reach the bond strength between layers, etc. Cost, reduce cost, improve the effect of construction progress

Inactive Publication Date: 2012-02-08
BEIJING LIGAO WATERPROOF ENG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of interlayer adhesive has disadvantages such as inaccurate proportioning on the construction site and uneven mixing during use.
As a result, the bonding effect is affected, and the strength of the interlayer bond cannot be achieved, which ultimately affects the quality of the project.
In addition, these products use more solvents such as toluene, xylene and trichloroethane, which are harmful to the health of production and construction workers and cause serious pollution to the environment.

Method used

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  • Interlayer bonding agent for spraying spray polyurea waterproof coating and preparation method thereof
  • Interlayer bonding agent for spraying spray polyurea waterproof coating and preparation method thereof
  • Interlayer bonding agent for spraying spray polyurea waterproof coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] A.Product formula

[0066]

[0067]

[0068] B. Preparation method

[0069] 1). Accurately weigh the entire weight of polyethylene terephthalate, polyethylene glycol ether 2000, dioctyl phthalate and dibutyl phthalate according to the formula, add it to the reaction kettle, and start the mixer , and heat up to 100--130°C;

[0070] 2). At the above temperature, turn on the vacuum pump to evacuate, stir and dehydrate for 2 hours, and keep the vacuum degree below -0.085MPa;

[0071] 3). Turn off the heating power supply or steam valve, stop heating, and put cooling water into the jacket of the reaction kettle to lower the temperature in the kettle to below 70°C;

[0072] 4). Accurately weigh the entire weight of toluene diisocyanate and benzoyl chloride according to the formula, add them to the reaction kettle, control the temperature between 70-80°C, and keep the temperature for 2 hours;

[0073] 5). After reaching the time, cool down to 70°C, weigh acetone and a...

Embodiment 2

[0077] A.Product formula

[0078]

[0079]

[0080] B. Preparation method

[0081] 1). Accurately weigh the entire weight of polybutylene terephthalate, polyethylene glycol ether 3050, dibutyl phthalate and dioctyl phthalate according to the formula, add it to the reaction kettle, and start the mixer , and heat up to 100--130°C;

[0082] 2). At the above temperature, turn on the vacuum pump to evacuate, stir and dehydrate for 2 hours, and keep the vacuum degree below -0.085MPa;

[0083] 3). Turn off the heating power supply or steam valve, stop heating, and put cooling water into the jacket of the reaction kettle to lower the temperature in the kettle to below 70°C;

[0084] 4). Accurately weigh the entire weight of diphenylmethane diisocyanate and benzoyl chloride according to the formula, add it to the reaction kettle, control the temperature between 70-80°C, and keep it warm for 2 hours;

[0085] 5). After reaching the time, cool down to 70°C, weigh solvent oil and...

Embodiment 3

[0089] A.Product formula

[0090]

[0091] B. Preparation method

[0092] 1). Accurately weigh the entire weight of polydiallyl terephthalate, polyethylene glycol ether 2000, dioctyl phthalate and dibutyl phthalate according to the formula, add it to the reaction kettle, and start the mixer , and heat up to 100--130°C;

[0093] 2). At the above temperature, turn on the vacuum pump to evacuate, stir and dehydrate for 2 hours, and keep the vacuum degree below -0.085MPa;

[0094] 3). Turn off the heating power supply or steam valve, stop heating, and put cooling water into the jacket of the reaction kettle to lower the temperature in the kettle to below 70°C;

[0095] 4). Accurately weigh the entire weight of toluene diisocyanate and benzoyl chloride according to the formula, add them to the reaction kettle, control the temperature between 70-80°C, and keep the temperature for 2 hours;

[0096] 5). After reaching the time, cool down to 70°C, weigh acetone and add it to the ...

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Abstract

The invention provides an interlayer bonding agent for spraying a polyurea waterproof coating. The interlayer bonding agent comprises the following raw materials in parts by weight: 25.0-30.0 parts of polyether, 20.0-25.0 parts of polyester, 5.0-12.0 parts of TDI (Toluene Diisocynate), 7.0-25.0 parts of plasticizer, 15.0-25.0 parts of solvent, 0.2-0.5 part of initiator and 0.2-0.5 part of catalyst. Due to the adoption of the interlayer bonding agent, the defects of inaccurate mixture ratio and non-uniform mixing and stirring during field application as well as containing of harmful solvents such as methylbenzene, dimethylbenzene, trichloroethane and the like in a product existing in the conventional commercially-available bicomponent interlayer bonding agent consisting of epoxy resin and polyurethane are overcome, a single-component high-intensity interlayer bonding agent which is free from toxic solvent is obtained, a complete continuous coating layer can be formed by the waterproof coating in the construction process, and normal performance of mechanical construction is ensured. The interlayer bonding agent is an ideal assorted product for spraying a polyurea waterproof coating.

Description

technical field [0001] The invention relates to a binder material, in particular to a one-component binder used for interlayer bonding of sprayed polyurea waterproof coatings. Background technique [0002] Spraying polyurea elastomer technology is a new type of non-polluting coating technology developed to meet the needs of environmental protection after the low (no) pollution coating technologies such as high solid content coatings, water-based coatings, light-curing coatings, and powder coatings in the past ten years abroad. Solvent and pollution-free, environmentally friendly construction technology product with many advantages. like: [0003] 1. The coating film cures quickly. During on-site spraying construction, it is not sensitive to moisture and humidity, and is less affected by ambient temperature and humidity; the curing speed can be adjusted to gel in 5 seconds, and reach walking strength in 1 minute; it can be applied on any curved surface, inclined surface and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/08C09J175/06C08G18/48C08G18/42B32B7/12C09D175/02C09D5/00
Inventor 王政昌姜锋段霓华赵文龙周择东
Owner BEIJING LIGAO WATERPROOF ENG CO LTD
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