Nano-silicon polymerization heat insulation board
A technology of thermal insulation board and nano-silicon, which is applied in the field of building thermal insulation materials, can solve the problems of low flame retardancy of thermal insulation boards, and achieve the effects of cost saving, low free formaldehyde content, and uniform overall characteristics
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Embodiment 1
[0027] This embodiment provides a nano-silicon polymer insulation board, which is made through the following steps:
[0028] Step 1: Dissolve 10L of hydrochloric acid with a concentration of 2mol / L and 1020g of aluminum oxide in 10L of water, heat and keep the temperature at 50°C, add 10L of ethylenediaminetetraacetic acid with a concentration of 2mol / L under stirring and continue stirring , obtain aluminum-containing organic ion solution after fully reacting;
[0029] Step 2: Add 600g of silica airgel to the aluminum-containing organic ion solution prepared in step 1, stir at 90°C until volatilized and dry, and keep 650°C in a crucible furnace for roasting to obtain a coated three Silica airgel of alumina;
[0030] Step 3: the silicon dioxide airgel coated with Al2O3 prepared in the parts by weight is 300g melamine resin, 10g phosphoric acid, 20g adipic acid, 60g sodium lauryl sulfate and 700g step 2 and mix in Foaming at 50°C to prepare nano-silicon polymer insulation boar...
Embodiment 2
[0032] This embodiment provides a nano-silicon polymer insulation board, which is made through the following steps:
[0033] Step 1: Dissolve 10L of hydrochloric acid with a concentration of 3mol / L and 1020g of aluminum oxide in 10L of water, heat and keep the temperature at 70°C, add 10L of ethylenediaminetetraacetic acid with a concentration of 3mol / L under stirring and continue stirring , obtain aluminum-containing organic ion solution after fully reacting;
[0034]Step 2: Add 1200g of silica airgel into the aluminum-containing organic ion solution prepared in step 1, stir at 110°C until volatilization and dryness, and keep calcination at 550°C in a crucible furnace to obtain coated three Silica airgel of alumina;
[0035] Step 3: the silicon dioxide aerogel coated with Al2O3 that the parts by weight are 500g melamine resin, 25g phosphoric acid, 25g adipic acid, 90g sodium lauryl sulfate and 400g step 2 make and mix in Foaming at 50°C to prepare nano-silicon polymer insul...
Embodiment 3
[0037] This embodiment provides a nano-silicon polymer insulation board, which is made through the following steps:
[0038] Step 1: Dissolve 10L of hydrochloric acid with a concentration of 2.5mol / L and 1020g of aluminum oxide in 10L of water, heat and keep the temperature at 60°C, add 10L of ethylenediaminetetraacetic acid with a concentration of 2.5mol / L under stirring and Continue to stir, and obtain an aluminum-containing organic ion solution after fully reacting;
[0039] Step 2: Add 900g of silica airgel into the aluminum-containing organic ion solution prepared in step 1, stir at 90°C until volatilized and dry, and keep calcination at 600°C in a crucible furnace to obtain the coated three Silica airgel of alumina;
[0040] Step 3: Prepare modified melamine resin, dissolve 1260g melamine, 880g vinyl alcohol, and 750g formaldehyde in 10L water at 80°C, add sodium hydroxide to adjust the pH to 8.5-9.0 for reaction, and after the reaction liquid is clarified, obtain Meth...
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Abstract
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