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Flame-retardant polyurethane spray-coating sealing material and preparation method thereof

A technology of polyurethane and flame retardant, which is applied in the field of flame-retardant polyurethane spraying and sealing materials and its preparation. good effect

Active Publication Date: 2013-02-13
SHANDONG INOV NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional way to improve the flame retardant performance of polyurethane foam is to add flame retardant elements such as halogen, nitrogen, phosphorus and antimony to the foam.

Method used

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  • Flame-retardant polyurethane spray-coating sealing material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1. Prepare component A: 100kg, weigh polyether polyol A (4 functionality, molecular weight 600), 12.5kg, polyether polyol B: B251 (Germany Solvay), 15kg, polyester polyol (2 Functionality, molecular weight 370), 22kg, foam stabilizer: L6950 (Momentive, USA), 1kg, water, 0.8kg, catalyst A: triethanolamine, 5kg, catalyst B chooses N,N,N',N",N" - Mixtures of pentamethyldiethylenetriamine, 1,3,5-tris(dimethylaminopropyl)hexahydrotriazine and dibutyltin dilaurate, weighing 0.5 kg, 0.5 kg and 0.3 kg respectively, issued Foaming agent HCFC-141b, 20kg, flame retardant A: TCPP, 12.4kg, flame retardant B: LM8089, 10kg, put the weighed polyether polyol A, polyether polyol B and polyester polyol into Stir in the mixing tank, then add the weighed foam stabilizer, water, catalyst A, catalyst B, flame retardant A, flame retardant B, and foaming agent, and add them to the reactor in turn, stir evenly at room temperature, and take samples After passing the test, it can be loaded into b...

Embodiment 2

[0036] 1. Prepare component A: 100kg, weigh polyether polyol A (6-functionality, molecular weight 730), 10kg, polyether polyol B: B251 (Germany Solvay), 18kg, polyester polyol (2-functionality degree, molecular weight 370), 18kg, foam stabilizer: L6950 (Momentive, USA), 1.5kg, water, 0.9kg, catalyst A is a mixture of triethanolamine and diethanolamine, the weight is 4kg and 1kg respectively, and the catalyst is N, N ,Mixture of N',N",N"-pentamethyldiethylenetriamine, 1,3,5-tris(dimethylaminopropyl)hexahydrotriazine and dibutyltin dilaurate, 0.8 by weight each kg, 0.4kg and 0.4kg, foaming agent: HCFC-141b, 18kg, flame retardant A: TCPP, 15kg, flame retardant B: LM8089, 12kg, weighed polyether polyol A, polyether polyol Alcohol B and polyester polyol are put into the mixing tank and stirred, then add the weighed foam stabilizer, water, catalyst A, catalyst B, flame retardant A, flame retardant B, foaming agent, and then add to the reactor Stir evenly at room temperature, and af...

Embodiment 3

[0040] 1. Prepare component A: 100kg, weigh polyether polyol A (4-functionality, molecular weight 600), 14kg, polyether polyol B: B251 (Germany Solvay), 10kg, polyester polyol (2-functionality degree, molecular weight 400), 21kg, foam stabilizer: L6950 (Momentive, USA), 1kg, water, 0.8kg, catalyst A: triethanolamine, 4.5kg, catalyst B choose N,N,N',N",N" - Pentamethyldiethylenetriamine, 1,3,5-tris(dimethylaminopropyl)hexahydrotriazine and dibutyltin dilaurate, weighing 0.4kg, 0.6kg and 0.3kg respectively, blowing agent : HCFC-141b, 16kg, flame retardant A: TCPP, 16kg, flame retardant B: LM8089, 15kg, put the weighed polyether polyol A, polyether polyol B and polyester polyol into the mixing tank Stir internally, then add the weighed foam stabilizer, water, catalyst A, catalyst B, flame retardant A, flame retardant B, and foaming agent, and add them to the reaction kettle in turn, stir evenly at room temperature, and the sampling test is qualified After that, it can be loaded ...

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Abstract

The invention relates to a flame-retardant polyurethane spray-coating sealing material and a preparation method thereof. The flame-retardant polyurethane spray-coating sealing material is composed of a component A and a component B in a weight ratio of 1:1, wherein the component A is prepared from the following components in percentage by weight: 10-20% of polyether glycol A, 10-20% of polyether glycol B, 15-25% of polyester polyol, 0.5-1.5% of foam stabilizer, 0.5-1% of water, 2.5-7.5% of catalyst A, 1-2.5% of catalyst B, 16-24% of foaming agent, 10-20% of flame retardant A and 5-15% of flame retardant B; and the component B is polyphenyl-polymethylene polyisocyanate. The preparation method comprises the following steps: preparing the raw materials, preparing the component A, and mixing the component A and component B in the weight ratio of 1:1. The flame-retardant polyurethane spray-coating sealing material has the advantages of favorable foam sealability, excellent flame retardancy and high product stability.

Description

technical field [0001] The invention belongs to the field of chemical synthesis, and in particular relates to a flame-retardant polyurethane spray-coated sealing material applied to coal mine walls and a preparation method thereof. Background technique [0002] During the excavation process of coal mine roadway, the surface rocks are easily damaged by weathering, and accidents of falling rocks and people are prone to occur. Therefore, the surface of the roadway needs to be coated. By spraying the coal wall and roof of the empty roadway, it can effectively prevent mine air leakage, prevent the natural oxidation of crushed coal pillars and coal and combustibles in the closed area, and reduce the harm to mine personnel caused by harmful gases entering the ventilation roadway. Health hazards, while reducing additional power consumption caused by mine air leakage. In addition, at present, most of the airtight walls for closed fire areas and ventilation changes in mines are built...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/06C09D175/08C09D5/18C09D7/12
Inventor 郝德开张丽唐国涛王艳艳杨化通
Owner SHANDONG INOV NEW MATERIALS CO LTD
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