A kind of preparation method of composite foam building wall insulation material
A technology for building walls and thermal insulation materials, applied in ceramic products, applications, household appliances, etc., can solve the problems of affecting the foaming effect and foaming material performance, loss of thermal insulation ability, increase of bulk density, etc., and achieve significant sound insulation and production costs. Low, high porosity effect
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Embodiment 1
[0028] A method for manufacturing a composite foamed building wall insulation material is carried out in the following steps:
[0029] 1) Preparation of hydrophobic expanded perlite:
[0030] Select perlite ore with a particle size of 0.05-0.1mm, preheat it to make its combined water content (water content) reach 2-3%, and then roast it in a furnace at 1200-1230°C to make it expand to 20% of its original volume. After doubling, it becomes expanded perlite and is exported with a negative pressure output pipeline; and then sprays the expanded perlite in the negative pressure output pipeline with hydroxyl hydrogen-containing silicone oil (consumption is 0.5% of the expanded perlite weight), and the sprayed hydrophobic agent formed is sticky Attached to the surface of expanded perlite at a temperature of 600-630°C, a film is formed on the surface of expanded perlite in 2-5 seconds, and the output is cooled for use;
[0031] 2) Preparation of wood liquefaction expandable resin:
...
Embodiment 2
[0036] A method for manufacturing a composite foamed building wall insulation material is carried out in the following steps:
[0037] 1) Preparation of hydrophobic expanded perlite:
[0038] Select perlite ore with a particle size of 0.05-0.1mm, preheat it to make the combined water content reach 2-3%, and then roast it in a furnace at 1230-1260°C to make it expand to 25 times its original volume and become expanded The perlite is also exported with a negative pressure output pipeline; then sprayed to the expanded perlite in the negative pressure output pipeline with methyl hydrogen-containing silicone oil (consumption is 0.6% of the expanded perlite weight), and the mist hydrophobic agent formed adheres to the On the surface of expanded perlite at around 600-800°C, a film is formed on the surface of expanded perlite for 2-5 seconds, and the output is cooled for use;
[0039] 2) Preparation of wood liquefaction expandable resin:
[0040]Add wood flour with a moisture conten...
Embodiment 3
[0044] A method for manufacturing a composite foamed building wall insulation material is carried out in the following steps:
[0045] 1) Preparation of hydrophobic expanded perlite:
[0046] Select perlite ore with a particle size of 0.05-0.1mm, preheat it to make the combined water content reach 2-3%, and then roast it in a furnace at 1260-1300°C to make it expand to 30 times the original volume and become expanded Perlite is also exported with a negative pressure output pipeline; then spray to the expanded perlite in the negative pressure output pipeline with sodium hydroxysiliconate (consumption is 0.8% of the expanded perlite weight), and the mist hydrophobic agent formed adheres to the temperature still On the surface of expanded perlite at around 600-800°C, a film with a certain strength is formed on the surface of expanded perlite in 2-5 seconds, and the output is cooled for use; the test data of the expanded perlite is: the obtained bulk density is 70-150kg / m 3 , the...
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