Method for preparing inorganic wall body insulating material

A technology for thermal insulation materials and walls, which is applied in the field of preparation of inorganic wall thermal insulation materials, and can solve problems such as temperature changes, cracks, and high water absorption of cracked walls

Inactive Publication Date: 2018-11-27
常州蓝森环保设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main technical problem to be solved by the present invention is to provide an inorganic thermal insulation material for the high water absorption rate of common expanded perlite wall insulation materials, which is easy to expand and crack when absorbing water, and the temperature change of the wall will cause further cracking. Preparation method of wall insulation material

Method used

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  • Method for preparing inorganic wall body insulating material

Examples

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Effect test

example 1

[0023] Weigh perlite and put it into a high-temperature furnace, heat up to 1000°C, and calcinate for 1 hour to obtain expanded perlite. Mix expanded perlite and sodium hydroxide solution with a mass fraction of 30% at a mass ratio of 1:5 and put In the high-pressure reactor, seal the reactor, heat it up to 150°C under the condition of a pressure of 1.5MPa, and react at high temperature and high pressure for 20 minutes; after the above reaction is completed, filter to obtain the filter residue and filtrate respectively. Repeatedly rinse with water for 3 times, then mix the washed filter residue and castor oil in an equal mass ratio to obtain a mixture, and put the mixture into a fermenter; 65% of the treatment room, stand for rancidity treatment for 5 days, after the rancidity treatment, seal the mouth of the fermentation tank, and leave it for fermentation at a temperature of 38°C for 5 days. Rinse with water for 3 times, put it into an oven, and dry at 105°C for 1 hour to ob...

example 2

[0025]Weigh perlite and put it into a high-temperature furnace, heat up to 1150°C, and calcinate for 1.5 hours to obtain expanded perlite. Mix expanded perlite and sodium hydroxide solution with a mass fraction of 30% in a mass ratio of 1:5 and put Put it into a high-pressure reactor, seal the reactor, heat up to 155°C under the condition of a pressure of 1.7MPa, and react at high temperature and high pressure for 25min; Repeatedly rinse 4 times with deionized water, then mix the washed filter residue and castor oil in an equal mass ratio to obtain a mixture, and put the mixture into a fermenter; In a treatment room with a humidity of 70%, let it stand for rancidity treatment for 6 days. After the rancidity treatment, seal the mouth of the fermentation tank and leave it for fermentation at a temperature of 39°C for 6 days. After the above fermentation is completed, take out the fermentation product and use it Rinse with deionized water for 4 times, put it into an oven, and dry...

example 3

[0027] Weigh perlite and put it into a high-temperature furnace, heat up to 1300°C, and calcinate for 2 hours to obtain expanded perlite. Mix expanded perlite and sodium hydroxide solution with a mass fraction of 30% at a mass ratio of 1:5 and put it in In the high-pressure reactor, seal the reactor, heat up to 160°C under a pressure of 1.8 MPa, and react at high temperature and high pressure for 30 minutes; after the above reaction is completed, filter to obtain the filter residue and filtrate respectively, and the filtrate is for use. Repeatedly rinse with water for 5 times, then mix the washed filter residue and castor oil in an equal mass ratio to obtain a mixture, and put the mixture into a fermenter; 80% of the treatment room, stand for rancidity treatment for 7 days, after the rancidity treatment, seal the mouth of the fermentation tank, and leave it for fermentation at a temperature of 40°C for 7 days. After rinsing with water for 5 times, put it into an oven and dry a...

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Abstract

The invention relates to a method for preparing an inorganic wall body insulating material, and belongs to the technical field of construction material preparation. According to the method, perlite isexpanded by high-temperature calcination, so that pores inside the perlite can be increased; sodium hydroxide is utilized to react with the main ingredient silicon dioxide in the expanded perlite under a high-temperature high-pressure condition; the perlite and vegetable oil are mixed and subjected to rancidifying treatment, so that organic acid generated in rancidification is used for dissolvingand removing acid-soluble ingredients in the perlite, the modified perlite, filtrate containing sodium silicate and a gelatin solution are mixed to perform hydrolysis and condensation polymerizationunder the effect of acid by utilizing the sodium silicate, and silicon hydroxyl generated in hydrolysis reacts with amino and carboxyl in gelatin and the hydrogen bond generated in hydroxy active siteon the surface of the modified perlite besides self condensation, and the three-dimensional network structure achieves an effect of dispersive stress when the inorganic wall body insulating materialis subjected to external stress effect. The inorganic wall body insulating material has excellent cracking resistance, and has a wide application prospect.

Description

technical field [0001] The invention relates to a preparation method of an inorganic wall thermal insulation material, belonging to the technical field of building material preparation. Background technique [0002] Wall insulation material (also known as WW wall insulation material) is a material that can have heat insulation function inside or outside the wall. There are many insulation material products, most of which are external wall insulation. The insulation layer is done well, and there is also internal insulation. Generally, the stairs of buildings are internally insulated. Wall energy-saving and thermal insulation materials include organic (such as benzene board, polystyrene board, extruded board, polystyrene foam board, rigid polyurethane foam, polycarbonate and phenolic, etc.), inorganic (such as perlite cement board, foam Cement board, composite silicate, rock wool, autoclaved sand aerated concrete block, traditional thermal insulation mortar, etc.) and composi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/28C04B111/34C04B111/40
CPCC04B26/28C04B2111/343C04B2111/40C04B2201/32C04B2201/50C04B14/185C04B22/062C04B24/08C04B24/04C04B22/06
Inventor 胡莉林茂梅朱彩娣
Owner 常州蓝森环保设备有限公司
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