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High-temperature-resistant dual-component polyurethane adhesive for air filter and preparation method of high-temperature-resistant dual-component polyurethane adhesive

A two-component polyurethane and air filter technology, used in polyurea/polyurethane adhesives, adhesives, non-polymer adhesive additives, etc., can solve the problem of low bonding strength, slow curing speed and high temperature resistance. Insufficient and other problems, to achieve the effect of excellent bonding performance, easy operation and low cost

Active Publication Date: 2018-01-16
南京威邦新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high temperature resistant two-component polyurethane adhesive for air filters and its preparation method in order to solve the problems of low bonding strength, slow curing speed and insufficient high temperature resistance of traditional air filter sealants or adhesives

Method used

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  • High-temperature-resistant dual-component polyurethane adhesive for air filter and preparation method of high-temperature-resistant dual-component polyurethane adhesive
  • High-temperature-resistant dual-component polyurethane adhesive for air filter and preparation method of high-temperature-resistant dual-component polyurethane adhesive
  • High-temperature-resistant dual-component polyurethane adhesive for air filter and preparation method of high-temperature-resistant dual-component polyurethane adhesive

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Experimental program
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Effect test

Embodiment 1

[0038] This embodiment 1 provides a method for preparing a high-temperature-resistant two-component polyurethane adhesive for an air filter. The prepared two-component polyurethane adhesive has the characteristics of fast curing speed, high bonding strength, and excellent high-temperature resistance. For bonding and sealing of air filters. The preparation method specifically includes:

[0039] Prepare component A:

[0040] Get raw materials according to the following ratio:

[0041] The molecular weight of 15 mass parts is the polyoxypropylene trihydric alcohol of 500, the molecular weight of 20 mass parts is the polyoxypropylene glycol of 2000, the epoxy-modified castor oil of 16 mass parts, heat up to 110-120 ℃, while Vacuumize and dehydrate for 2-3 hours while stirring, and control the moisture index below 200ppm; cool down to 40-50°C, add 33 parts by mass of heavy calcium carbonate and 16 parts by mass of mica powder, fully knead evenly in a high-speed disperser, and the...

Embodiment 2

[0048] The second embodiment provides a method for preparing a high-temperature-resistant two-component polyurethane adhesive for an air filter. The prepared two-component polyurethane adhesive has the characteristics of fast curing speed, high bonding strength, and excellent high-temperature resistance. For bonding and sealing of air filters. The preparation method specifically includes:

[0049] Prepare component A:

[0050] Get raw materials according to the following ratio:

[0051] The molecular weight of 20 mass parts is the polyoxypropylene trihydric alcohol of 400, the molecular weight of 30 mass parts is the polyoxypropylene glycol of 1000, the epoxy-modified castor oil of 19 mass parts, heat up to 110-120 ℃, while Vacuumize and dehydrate for 2-3 hours while stirring, and control the moisture index below 200ppm; cool down to 40-50°C, add 30 parts by mass of light calcium carbonate and 10 parts by mass of aluminum oxide, and fully knead in a high-speed disperser. Then...

Embodiment 3

[0057] Embodiment 3 provides a method for preparing a high-temperature-resistant two-component polyurethane adhesive for air filters. The prepared two-component polyurethane adhesive has the characteristics of fast curing speed, high bonding strength, and excellent high-temperature resistance. For bonding and sealing of air filters. The preparation method specifically includes:

[0058] Prepare component A:

[0059] Get raw materials according to the following ratio:

[0060] 20 parts by mass of polyoxypropylene triol with a molecular weight of 600, 25 parts by mass of polyoxypropylene diol with a molecular weight of 1500, and 23 parts by mass of maleic anhydride-modified castor oil are heated up to 110-120°C while stirring While vacuuming and dehydrating for 2-3 hours, the moisture index is controlled below 200ppm; the temperature is lowered to 40-50°C, and 35 parts by mass of nano calcium carbonate and 15 parts by mass of titanium dioxide are fully kneaded in a high-speed ...

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Abstract

The invention provides a high-temperature-resistant dual-component polyurethane adhesive for an air filter and a preparation method of the high-temperature-resistant dual-component polyurethane adhesive. Modified castor oil polyhydric alcohol and an organic silicon compound are introduced into the formula of the high-temperature-resistant dual-component polyurethane adhesive. The preparation method is simple in process, easy to operate and relatively low in cost; the adhesive is excellent in adhesiveness to a glass fiber filter element and a stainless steel rim of the air filter, high in vibration resistance and high in damp heat resistance.

Description

technical field [0001] The invention relates to a polyurethane adhesive for an air filter and a preparation method thereof, belonging to the technical field of adhesives. Background technique [0002] Air filters refer to air filtration devices, which are generally used in clean workshops, clean workshops, laboratories or medical clean rooms, etc., and are also used in industries such as electronics, machinery, precision instruments, communications, and medical equipment, which have high requirements for dust prevention and dust removal. required fields. Among them, the high-temperature-resistant air filter is mainly used in ultra-clean drying ovens and high-demand purification systems that require drying in food, pharmaceutical and other production processes. [0003] High temperature resistant air filter is generally composed of ultra-fine glass fiber filter element, aluminum foil separator and stainless steel frame, which needs to use high temperature resistant sealant o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/14C09J11/04C08G18/67C08G18/61C08G18/48
Inventor 陈小锋王飞马西兰
Owner 南京威邦新材料有限公司
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