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Pipeline thermal insulation material as well as preparation method and application thereof

A pipeline thermal insulation and raw material technology, which is applied in the chemical industry, can solve the problem that the thermal insulation performance requirements and environmental protection requirements of large-diameter pipelines cannot be fully met at the same time, and achieve the effects of excellent high and low temperature resistance, simple preparation method and excellent thermal insulation performance.

Inactive Publication Date: 2021-02-12
淄博汇德聚氨酯制品股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a pipeline insulation material to solve the problem that the existing polyurethane composite materials used for pipeline insulation cannot fully meet the performance requirements and environmental protection requirements of large-diameter pipeline insulation in the above background technology

Method used

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Examples

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preparation example Construction

[0032] Another object of the embodiments of the present invention is to provide a method for preparing a pipeline insulation material. The method for preparing a pipeline insulation material includes the following steps:

[0033] 1) Weigh the first organic polymer, the second organic polymer, the third organic polymer, and the fourth organic polymer according to the proportion and mix them evenly, then add the catalyst, n-pentane, water and foam stabilizer according to the proportion, and mix Uniformly, the A component is obtained;

[0034] 2) The A component and the B component can be placed separately; when in use, the A component and the B component can be mixed and sprayed according to the weight ratio of 100:100-110 The pipeline insulation material is made, that is, large-diameter pipeline insulation polyurethane rigid foam.

[0035] As another preferred embodiment of the present invention, in the preparation method of the pipeline insulation material, after adding catalys...

Embodiment 1

[0040] A pipeline insulation material, comprising A component and B component, the specific preparation method of the pipeline insulation material comprises:

[0041] Prepare component A (100 kg), weigh respectively: 41 kg of the first organic polymer (polyether polyol, 6.0 functionality, molecular weight 850), the second organic polymer (polyether polyol, 4.0 functionality, Molecular weight 610) 21 kg, third organic polymer (polyester polyol, functionality 2.0, molecular weight 340) 21 kg, fourth organic polymer (polyether polyol, functionality 3.0, molecular weight 260) 8 kg , catalyst PC-41 (U.S. Air Chemical) 0.5 kg, catalyst A-33 (U.S. Air Chemical) 5 kg, catalyst PC-5 (U.S. Air Chemical) 1 kg, water 0.5 kg, foam stabilizer C-7720 (Cangzhou Jun Chi Weiye) 2 kg, blowing agent n-pentane (Shanghai Luyang) 12 kg. Put the weighed first organic polymer, the second organic polymer, the third organic polymer, and the fourth organic polymer into the reactor, stir and mix evenly, ...

Embodiment 2

[0044] A pipeline insulation material, comprising A component and B component, the specific preparation method of the pipeline insulation material comprises:

[0045] Prepare component A (100 kg), weigh respectively: 45 kg of the first organic polymer (polyether polyol, 6.0 functionality, molecular weight 900), the second organic polymer (polyether polyol, 4.0 functionality, Molecular weight 650) 25 kg, third organic polymer (polyester polyol, functionality 2.0, molecular weight 320) 20 kg, fourth organic polymer (polyether polyol, functionality 3.0, molecular weight 260) 9 kg , catalyst PC-41 (Air Chemicals, USA) 0.5 kg, catalyst A-33 (Air Chemicals, USA) 5.5 kg, catalyst PC-5 (Air Chemicals, USA) 0.1 kg, water 0.6 kg, foam stabilizer C-7720 (Cangzhou Jun Chi Weiye) 2 kg, blowing agent n-pentane (Shanghai Luyang) 10 kg. Put the weighed first organic polymer, the second organic polymer, the third organic polymer, and the fourth organic polymer into the reactor, stir and mix e...

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Abstract

The invention relates to the field of chemical engineering, and particularly discloses a pipeline thermal insulation material as well as a preparation method and the application thereof. The pipelinethermal insulation material comprises a component A and a component B, the component B is polymerized diphenylmethane diisocyanate, and the raw materials of the component A comprise a plurality of polyols, n-pentane, a catalyst, a foam stabilizer, water and the like; the n-pentane is adopted as a foaming agent, the environment-friendly requirement is met, meanwhile, through selection of polyhydricalcohols and other auxiliaries, when the obtained pipeline heat preservation material is used, formed pipeline heat preservation foam is high in binding power with a base material, excellent in highand low temperature resistance and excellent in heat preservation performance, and the heat preservation using and environment-friendly requirements of a large-caliber pipeline are completely met; thepolyurethane composite material solves the problem that the existing polyurethane composite material for pipeline heat preservation can not completely meet the use performance requirement and the environment-friendly requirement of large-caliber pipeline heat preservation at the same time. The preparation method provided by the invention is simple and has a wide market prospect.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a pipe insulation material and its preparation method and application. Background technique [0002] With the advancement and development of science and technology, materials with various functions are also widely used in construction. Among them, since pipelines are widely used in liquid and gas transportation network, chemical pipeline insulation engineering, petroleum, chemical industry, central heating heating network, central air conditioning ventilation, municipal engineering and other fields, the insulation treatment of pipelines is very important to ensure its normal use. is of great significance. [0003] At present, the insulation materials used for pipeline insulation mainly include: rock wool, high temperature resistant glass wool, aluminum silicate, microporous calcium silicate, composite silicate, pipe support, heat shrinkable tape, polyurethane composite material,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/79C08G18/48C08G18/42C08G18/40C08J9/14C08J9/08C08G101/00
CPCC08G18/794C08G18/48C08G18/42C08G18/4018C08J9/141C08J9/08C08G2101/00C08J2375/04C08J2203/02C08J2203/14C08J2203/184
Inventor 张秀凤
Owner 淄博汇德聚氨酯制品股份有限公司
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