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Flame retardant material for pipeline insulation and preparation method thereof

A flame retardant material and pipe insulation technology, applied in the field of flame retardant materials, can solve the problems of non-flame retardant pipes, high water absorption rate, high heat loss, etc., and achieve the effect of simple and convenient operation

Active Publication Date: 2017-11-24
SHANDONG INOV NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the gradual increase in the petrochemical industry and special application fields, ordinary polyurethane rigid foam molding pipes generally have problems such as non-flame retardancy and foam flammability, causing major safety accidents
In petrochemical, LNG transmission pipelines, mine pipelines and other fields, rock wool, glass wool, high-density EPS and XPS are usually used. Due to the nature of these materials, their thermal insulation effect and long-term applicability are not ideal, and high water absorption is common. , heat loss, complex construction technology and other issues, causing a lot of inconvenience to the daily process operation and operation

Method used

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  • Flame retardant material for pipeline insulation and preparation method thereof
  • Flame retardant material for pipeline insulation and preparation method thereof
  • Flame retardant material for pipeline insulation and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Prepare 100 kilograms of component A materials, weigh them separately: 50 kilograms of polyether polyol A (6 functionalities, molecular weight is 800), 10 kilograms of polyether polyol B (4 functionalities, molecular weight is 650), polyester polyol C (2 functionality, hydroxyl value 240mgKOH / g, molecular weight 400) 10 kg, B8545 (Evonik Degussa) 1.7 kg, deionized water 2.5 kg, dibutyltin dilaurate 0.1 kg, N,N dimethyl ring 0.7 kg of hexylamine, 0.4 kg of tetramethylethylenediamine, 17.6 kg of tris(2-chloropropyl) phosphate, and 7 kg of triethyl phosphate. Put the weighed polyether polyol and polyester polyol into the mixing tank and stir, then add the weighed catalyst, water, foam stabilizer, and compound flame retardant, stir at room temperature for one hour, and take a sample to test After that, it can be loaded into barrels.

[0029] Mix components A and B according to the weight ratio of A:B=100:140 to make a flame-retardant material for pipeline insulation. The p...

Embodiment 2

[0032] Prepare 100 kilograms of component A materials, weigh respectively: polyether polyol A (6 functionalities, molecular weight is 800) 42 kilograms, polyether polyol B (4 functionalities, molecular weight is 650) 26 kilograms, polyester polyol C (2 functionality, hydroxyl value 240mgKOH / g, molecular weight 500) 6 kg, B8545 (Evonik Degussa) 2.2 kg, deionized water 2 kg, dibutyltin dilaurate 0.3 kg, N,N dimethyl ring 0.5 kg of hexylamine, 0.4 kg of tetramethylethylenediamine, 15 kg of tris (2-chloropropyl) phosphate, and 5 kg of triethyl phosphate. Put the weighed polyether polyol and polyester polyol into the mixing tank and stir, then add the weighed catalyst, water, foam stabilizer, and compound flame retardant, stir at room temperature for one hour, and take a sample to test After that, it can be loaded into barrels.

[0033] Mix components A and B according to the weight ratio of A:B=100:150 to make a flame-retardant material for pipeline insulation. The product perfor...

Embodiment 3

[0036] Prepare 100 kilograms of component A material, weigh respectively: polyether polyol A (6 functionalities, molecular weight is 800) 35 kilograms, polyether polyol B (4 functionalities, molecular weight is 650) 21 kilograms, polyester polyol C (2 functionality, hydroxyl value 240mgKOH / g, molecular weight 450) 14 kg, L6920 (Momentive) 1.5 kg, deionized water 2.7 kg, dibutyltin dilaurate 0.3 kg, N,N dimethylcyclohexylamine 0.6 kg, 0.3 kg of tetramethylethylenediamine, 17.6 kg of tris(2-chloropropyl) phosphate, and 7 kg of triethyl phosphate. Put the weighed polyether polyol and polyester polyol into the mixing tank and stir, then add the weighed catalyst, water, foam stabilizer, and compound flame retardant respectively, stir at room temperature for one hour, and take a sample to test After that, it can be loaded into barrels.

[0037] Mix components A and B according to the weight ratio of A:B=100:160 to make a flame-retardant material for pipeline insulation. The product...

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Abstract

The invention relates to a flame retardant material, in particular to a flame retardant material for pipeline thermal insulation and a preparing method thereof. The flame retardant material for pipeline thermal insulation consists of a component A and a component B, wherein the component A consists of polyester polyol A, polyester polyol B, polyester polyol C, a foam stabilizer, deionized water, a catalyst and a flame retardant; polyphenol polymethylene isocyanate is used as the component B; the flame retardant material for pipeline thermal insulation is obtained by uniformly mixing the component A and the component B according to the following weight ratio: A: B =1: (1.4-1.6). The flame retardant material for pipeline thermal insulation has great mobility and density distribution, meets flame retardant requirements, and is green, environment-friendly and simple to operate.

Description

technical field [0001] The invention relates to a flame-retardant material, in particular to a flame-retardant material for pipeline heat preservation and a preparation method thereof. Background technique [0002] Polyurethane foam is currently the best of all thermal insulation materials, and is widely used in heating pipes, refrigerator freezers, building insulation, etc. In my country, ordinary heat pipe insulation materials have been used for many years, and the technology has been relatively mature. Can meet the requirements of use. However, with the gradual increase in the petrochemical industry and special application fields, ordinary polyurethane rigid foam molding pipes generally have problems such as non-flame retardancy and foam flammability, causing major safety accidents. In petrochemical, LNG transmission pipelines, mine pipelines and other fields, rock wool, glass wool, high-density EPS and XPS are usually used. Due to the nature of these materials, their the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/76C08G18/48C08G18/42C08G18/24C08G18/18C08J9/08C08K5/521
CPCC08G18/4018C08G18/4208C08G18/4816C08G18/7664C08K5/521C08K2201/014C08G2110/0083
Inventor 李明友徐业峰朱文静殷晓峰张佳佳
Owner SHANDONG INOV NEW MATERIALS CO LTD