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Preparation method of environment-friendly non-volatile mineral wool fiber pipe insulation material

A technology of mineral wool fiber and pipe insulation, which is applied in the field of thermal insulation materials and can solve problems such as endangering the environment and human health

Inactive Publication Date: 2017-12-12
薛向东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention: Aiming at the problem that the existing mineral wool fiber pipe insulation materials will release formaldehyde, free phenol and other harmful small molecules to endanger the environment and human health during use, an environmentally friendly non-volatile mineral Preparation method of cotton fiber pipe insulation material

Method used

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  • Preparation method of environment-friendly non-volatile mineral wool fiber pipe insulation material

Examples

Experimental program
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Effect test

example 1

[0022] According to the mass ratio of 1:10, polystyrene was added to dichloroethane, and the mixture was obtained after standing at room temperature for 1 hour. According to the mass ratio of 1:1:24, aluminum chloride and sodium bicarbonate were added to the mixture After stirring and mixing for 25 minutes, adjust the pH to 2.5 with mixed acid, heat in a water bath at 55°C for 6 hours, let it stand and cool to room temperature, adjust the pH to 8.5 with 0.1mol / L sodium hydroxide solution, and stir and mix for 10 minutes. Filter the filter cake, wash with deionized water until the washing liquid is neutral, and vacuum dry for 3 hours to obtain modified resin particles; by weight, weigh 25 parts of phenolic resin, 15 parts of modified porous resin particles, 2 parts of zinc oxide, 1 part of paraffin, 0.1 part of antioxidant 168, 0.01 part of antioxidant 1010, 3 parts of dibutyl phthalate and 1 part of triethanolamine are placed in the internal mixer, and the temperature of the he...

example 2

[0024] According to the mass ratio of 1:10, polystyrene was added to dichloroethane, and the mixture was obtained after standing at room temperature for 1 hour. According to the mass ratio of 1:1:24, aluminum chloride and sodium bicarbonate were added to the mixture After stirring and mixing for 27 minutes, adjust the pH to 2.5 with mixed acid, heat in a water bath at 57°C for 7 hours, let it stand and cool to room temperature, adjust the pH to 8.5 with 0.1mol / L sodium hydroxide solution, and stir and mix for 12 minutes. Filter the filter cake, wash with deionized water until the washing liquid is neutral, and vacuum-dry for 4 hours to obtain modified resin particles; in parts by weight, weigh 27 parts of phenolic resin, 17 parts of modified porous resin particles, 3 parts of zinc oxide, 2 parts of paraffin, 0.2 part of antioxidant 168, 0.02 part of antioxidant 1010, 4 parts of dibutyl phthalate and 2 parts of triethanolamine are placed in the internal mixer, and the temperatur...

example 3

[0026]According to the mass ratio of 1:10, polystyrene was added to dichloroethane, and the mixture was obtained after standing at room temperature for 2 hours. According to the mass ratio of 1:1:24, aluminum chloride and sodium bicarbonate were added to the mixture After stirring and mixing for 30 minutes, adjust the pH to 2.5 with mixed acid, heat in a water bath at 60°C for 8 hours, let it stand and cool to room temperature, adjust the pH to 8.5 with 0.1mol / L sodium hydroxide solution, and stir and mix for 15 minutes. Filter to obtain the filter cake, wash with deionized water until the washing liquid is neutral, and vacuum-dry for 5 hours to obtain modified resin particles; in parts by weight, weigh 30 parts of phenolic resin, 20 parts of modified porous resin particles, 3 parts of zinc oxide, 2 parts of paraffin, 0.2 part of antioxidant 168, 0.02 part of antioxidant 1010, 5 parts of dibutyl phthalate and 2 parts of triethanolamine are placed in the internal mixer, and the ...

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Abstract

The invention relates to a preparation method of an environment-friendly non-volatile mineral wool fiber pipe insulation material, and belongs to the technical field of insulation materials. The method comprises the following steps: taking aluminium chloride and sodium bicarbonate as additives to participate in a resin polymerization reaction, enabling aluminium hydroxide to be heated and decomposed in the polymerization reaction to form aluminium oxide with high adsorption performance and water vapour, cooling, enabling the resin to form a porous structure, forming an adsorption space inside a polymer, and filling the interior of the polymer based on the theory of capillary condensation that micro-pores are beneficial to the interaction between adsorbates to ensure that pores of composite materials can effectively adsorb harmful gases; and then performing nitro grafting for modified resin. Therefore as the polarity matching between adsorbents and the adsorbates may affect the adsorption effect, polar adsorbates can be easily adsorbed by polar adsorbents; and by modifying the surface of the modified resin with nitro, the surface polarity of the modified resin is greater than that of phenolic substances, the adsorbates can be effectively adsorbed and immobilized, and the problem that toxic and harmful gases are easily volatilized from the materials can be solved.

Description

technical field [0001] The invention relates to a preparation method of an environment-friendly non-volatile mineral wool fiber pipe insulation material, which belongs to the technical field of insulation materials. Background technique [0002] The so-called pipeline insulation mainly refers to the insulation of the heating pipeline, which is to reduce the heat of the medium inside the heating pipeline. [0003] A technological measure taken to transmit loss from the source to the outside. Insulation of the heating pipeline system is mainly to reduce the heat lost from the inside of the pipeline to the outside of the pipeline, so as to save energy and prolong the service life of the pipeline, and at the same time prevent the condensation of the liquid inside the pipeline. [0004] Blast furnace slag cotton fiber is produced by adding limestone, dolomite and other modulators to blast furnace slag, remelting at high temperature in a DC electric arc furnace, and using a speci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/06C08L25/06C08L91/06C08K13/04C08K7/10C08K3/22C08K5/12
CPCC08L61/06C08K2003/2227C08K2003/2296C08L2203/18C08L2205/03C08L25/06C08L91/06C08K13/04C08K7/10C08K3/22C08K5/12
Inventor 李华季美
Owner 薛向东
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