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Melamine foam material for pipeline heat insulation and preparation method and use thereof

A technology of melamine and foam materials, which is used in thermal insulation, pipeline protection, mechanical equipment, etc., can solve problems such as low bulk density and low thermal conductivity, and achieve the effects of excellent fire resistance, small thermal conductivity and low bulk density.

Inactive Publication Date: 2009-05-06
NO 91872 TROOPS PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the current situation and various problems of pipeline insulation materials, the inventor has worked hard to develop a melamine foam material for pipeline insulation with low bulk density, small thermal conductivity, excellent fire resistance, and convenient and quick construction, in order to overcome the existing problems. Insufficiency of technical pipe insulation materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: melamine foam material foaming liquid formula (parts by mass) for pipeline insulation

[0025] components parts by mass High Solids Content Melamine Resin 200 Hydrochlorofluorocarbon 141b (blowing agent) 20 Toluenesulfonic acid-phosphoric acid (curing agent) 10 Sodium dodecylbenzenesulfonate (emulsifier) 6

[0026] Wherein, the above-mentioned high-solid melamine resin is a mixture of 120 parts by mass of melamine resin, 80 parts of paraformaldehyde and 70 parts of formaldehyde.

[0027] Preparation method: put high solid content melamine resin in a stirred tank, control the temperature at 15-40°C, add the mixture of foaming agent, curing agent and emulsifier into the stirred tank, stir evenly, and apply the above mixture In the foam molding mold, adjust the temperature of the microwave foaming equipment to control the temperature at 30-80°C for foaming. After the foaming is completed, raise the temperature of the fo...

Embodiment 2

[0030] Embodiment 2: melamine foam material foaming liquid formula (parts by mass) for pipeline insulation

[0031] components parts by mass High Solids Content Melamine Resin 180 Hydrochlorofluorocarbon 141b (blowing agent) 15 Toluenesulfonic acid-phosphoric acid (curing agent) 6 Sodium Lauryl Sulfonate (Emulsifier) 4

[0032] Wherein, the above-mentioned high-solid melamine resin is a mixture of 100 parts by mass of melamine resin, 75 parts of paraformaldehyde and 60 parts of formaldehyde.

[0033] Preparation method: put high solid content melamine resin in a stirred tank, control the temperature at 25-35°C, add the mixture of foaming agent, curing agent and emulsifier into the stirred tank, stir evenly, and apply the above mixture In the foam molding mold, adjust the temperature of the microwave foaming equipment to control the temperature at 50-60°C for foaming. After the foaming is completed, raise the temperature of the foaming eq...

Embodiment 3

[0036] Embodiment 3: Construction technology of melamine foam material for pipeline insulation

[0037] The melamine foam insulation layer prepared in the foam molding mold according to the formula components of the melamine foam material foaming liquid for pipeline insulation in Example 1 or 2 is processed according to the shape of the pipeline, and the processed insulation layer is sleeved on the pipe. On the outside of the road, the insulation layer is covered with a protective layer, and the protective layer is additionally covered with a reinforcement layer.

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PUM

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Abstract

The invention provides a melamine foaming material for heat preservation of a pipeline, which consists of a foaming liquid system, wherein the foaming liquid system comprises a high solid content melamine resin, a foaming agent, a curing agent and an emulsifier, and the weight proportion of the high solid content melamine resin to the foaming agent to the curing agent to the emulsifier is 50-250 to 5-30 to 2.5-15 to 1-10. The invention also provides a method for preparing the melamine foaming material and application of the melamine foaming material. The melamine foaming material with adequate thickness is processed according to the shape of the pipeline and sleeved outside the pipeline, and the outside of the melamine foaming material is coated with a reinforced protective layer which is provided with a coating belt for fixation, so that the heat preservation effect of the pipeline can be achieved. The melamine foaming material has the advantages of low thermal conductivity coefficient, softness and moderation, easy machine shaping, simple construction, and firmness and reliability.

Description

technical field [0001] The invention provides a pipeline thermal insulation material and its construction technology, in particular, a pipeline thermal insulation material with a fluid temperature not exceeding 240° C. and its construction technique. Background technique [0002] At present, my country's pipeline insulation materials are still "three cottons" (ie mineral wool, glass wool, rock wool), "three boards" inorganic materials and natural or synthetic organic materials mainly composed of cork and polyurethane foam. As insulation materials for ships, these materials have their own characteristics, but they also have their own defects and various irrationality in application. During the thermal insulation process, these thermal insulation materials also bring potential dangers to the safety of ships and the lives of crew members. For example, inorganic thermal insulation materials have disadvantages such as large capacity, serious water absorption, and poor corrosion r...

Claims

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Application Information

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IPC IPC(8): C08L61/28C08J9/14C08G12/32F16L59/14
Inventor 张海永孟宪林林红吉牛克华付大海陈晓明
Owner NO 91872 TROOPS PLA
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