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Flame-retardant polyurethane adhesive and preparation method thereof

A polyurethane adhesive, flame-retardant technology, applied in polyurea/polyurethane adhesives, adhesives, adhesive additives, etc., can solve problems such as leakage, glass bricks and adhesive quality that cannot meet technical requirements, and achieve the preparation method Simple, improved anti-corrosion durability and safety, and the effect of good mechanical properties

Active Publication Date: 2020-11-03
惠州市安品新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, domestic power plant chimneys mostly use waste glass foam glass bricks for wet chimney anticorrosion, but about 80% will leak within one year, the main reason is that the quality of glass bricks and adhesives cannot meet the technical requirements

Method used

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  • Flame-retardant polyurethane adhesive and preparation method thereof
  • Flame-retardant polyurethane adhesive and preparation method thereof
  • Flame-retardant polyurethane adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Flame-retardant polyurethane adhesive includes A component and B component, and the preparation method is as follows:

[0032] 30kg of hydroxyl-terminated polybutadiene (HTPBШ type, Liming Institute of Chemical Industry, hydroxyl value 38mgKOH / g, molecular weight 1800-3500) and 10kg of quartz powder (604, Sibelco Mining Co., Ltd., with an average particle size (D50) of 15μm ) into the mixing device for 15 minutes, add 3kg trishydroxymethyl phosphine oxide, 10kg antimony trioxide and 10kg decabromodiphenylethane, 2kg antioxidant Irganox 1010, 2kg chain extender Span80 (Guangdong Runhua Chemical Co., Ltd. , hydroxyl value 200mgKOH / g), 10kg polyisobutylene (PB4000, Daelim, South Korea, molecular weight 4000) were mixed for 15 minutes to obtain a premix; 7kg corrosion-resistant filler barium sulfate (XLT-3, Guizhou Xinli Tinto Mining Co., Ltd. , 600 mesh) mixed with 15kg polycaprolactone diol (L330AL, Nippon Chemical Industry Co., Ltd. Daicel, 3000 molecular weight, hydroxy...

Embodiment 2

[0034] Flame-retardant polyurethane adhesive includes A component and B component, and the preparation method is as follows:

[0035]Mix 10kg of hydroxyl-terminated polybutadiene (HTPBШ type, Liming Institute of Chemical Industry, hydroxyl value 38mgKOH / g, molecular weight 1800-3500) and 15kg of silica powder (604, Sibelco Mining Co., Ltd., particle size (D50) is 15μm) Put into stirring device and mix for 15 minutes, add flame retardant 5kg trishydroxymethyl phosphine oxide, 6kg antimony trioxide and 14kg decabromodiphenylethane, 2kg antioxidant Irganox 1010, 2kg Span80 (Guangdong Runhua Chemical Co., Ltd., Hydroxyl value 200mgKOH / g), 3kg 1,4-butanediol (BASF), 5kg EPDM rubber (EV-30, Dongguan Junsong Plastic, molecular weight 45000, dynamic viscosity value at 25°C 200000cps), 10kg polyisobutylene (Jilin Petrochemical, molecular weight 3000) mixed again for 15 minutes to obtain a premix; 20kg microsilica powder (604, Sibelco Mining Co., Ltd.) and 5kg polycaprolactone glycol (C...

Embodiment 3

[0037] Flame-retardant polyurethane adhesive includes A component and B component, and the preparation method is as follows:

[0038] 25kg of hydroxyl-terminated polybutadiene (HTPB Poly bd R-45HT, Japan Idemitsu Kosan Co., Ltd., molecular weight 2800, hydroxyl value 46mgKOH / g) and 15kg of silicon micropowder (604, Sibelco Mining Co., Ltd., particle size (D50 ) is 15 μm) was put into a stirring device and mixed for 15 minutes, adding flame retardant 7kg antimony trioxide and 13kg decabromodiphenylethane, 3kg antioxidant Irganox1010, 1kg chain extender 1,4-butanediol (Tianjin Zhonghe Shengtai Chemical Co., Ltd.), 2kg Span80 (Guangdong Runhua Chemical Co., Ltd., hydroxyl value 200mgKOH / g), 5kg EPDM rubber (EV-30, Dongguan Junsong Plastic, molecular weight 45000, 25℃ viscosity value 200000cps), 5kg poly Isobutylene (PB2400, produced in Korea Daelim, molecular weight 2400, viscosity 4500cps at 100°C) was mixed for 15 minutes to obtain the premix; With 8kg polycaprolactone diol (C...

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Abstract

The invention belongs to the technical field of adhesive materials, and discloses an acid-resistant, corrosion-resistant and flame-retardant polyurethane adhesive and a preparation method thereof. Thepreparation method includes the steps: mixing hydroxyl-terminated liquid rubber and part of corrosion-resistant filler, then adding an antioxidant, a chain extender, polyolefin and a flame retardant,and uniformly mixing the components to form a premix; mixing the residual corrosion-resistant filler with polyester polyol, heating, mixing with the premix under a vacuumizing condition, adding a water absorbent, and sealing the system and discharging the product to obtain a component A; and sub-packaging the polyisocyanate curing agent to obtain the component B. The adhesive disclosed by the invention has good mechanical properties, acid corrosion resistance and flame retardance after being cured, and the preparation method of the product is simple.

Description

technical field [0001] The invention relates to an adhesive material, in particular to a flame-retardant polyurethane adhesive used for anticorrosion, especially chimney anticorrosion, and a preparation method thereof. Background technique [0002] At present, domestic power plant chimneys mostly use waste glass foam glass bricks for wet chimney anticorrosion, but about 80% will leak within one year, mainly because the quality of glass bricks and adhesives cannot meet the technical requirements. The anti-corrosion conditions of wet chimneys are harsh, including: the concentration of acid solution is high, and the pH value of the actual extracted acid solution sample is close to 1; in places where fluid is easy to accumulate, as the water in the acid solution volatilizes, the concentration increases; the acid solution The composition is complex, containing sulfuric acid, and also contains trace amounts of nitric acid, hydrochloric acid and hydrofluoric acid, which are very co...

Claims

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Application Information

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IPC IPC(8): C09J175/14C09J175/06C09J123/20C09J11/04C09J11/06C09J11/08C08G18/69C08G18/67C08G18/66C08G18/42C08G18/32C09J123/16
CPCC09J175/14C09J175/06C09J11/04C09J11/06C09J11/08C08G18/698C08G18/675C08G18/664C08G18/4277C08G18/4238C08G18/4202C08G18/3206C08K2003/3045C08L2201/02C08L23/22C08K13/02C08K5/5397C08K3/2279C08K3/30C08K5/03C08L23/16C08K3/36
Inventor 王超马玉珍刘奇明余栋才游正林苏剑
Owner 惠州市安品新材料有限公司
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