Exterior wall putty with capacity of energy saving and heat preservation and preparation method
An external wall putty and thermal insulation technology, applied in the direction of filling slurry, etc., can solve the problems of weak adhesion, poor thermal insulation performance, complex formula, etc., and achieve the effect of easy construction, good construction performance and high bonding strength
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[0042] Example 1 An energy-saving and heat-preserving exterior wall putty was prepared with the following main raw materials (20kg each): 36 parts of talc, 16 parts of silicon dioxide, 8 parts of hydroxypropyl methylcellulose, 5 parts of plant ash , 4 parts of benzoic acid, 3 parts of citric acid, 3 parts of corn starch, 1 part of sawdust, 3 parts of aluminum powder, 4 parts of rubber powder, 4 parts of boric acid, 22 parts of water.
[0043] The preparation steps of energy-saving and heat-preserving exterior wall putty are as follows:
[0044] (1) Heat half the mass of water to 50°C, add it to the stirring tank, add talc and silica, stir evenly, pour it into a reactor with a thermometer, add benzoic acid when heated to 140°C, keep warm React for 3 hours, cool to room temperature, add sodium hydroxide to adjust the pH to 7.2;
[0045] (2) Put the sawdust in a sawdust crusher, mechanically crush it, put it in a mixer, add corn starch, stir for 20 minutes, take it out, and set aside; ...
Example Embodiment
[0050] Example 2 An energy-saving and heat-preserving exterior wall putty was prepared from the following main raw materials (10kg each): 46 parts of talc, 24 parts of silicon dioxide, 14 parts of hydroxypropyl methylcellulose, 10 parts of plant ash , 6 parts of benzoic acid, 5 parts of citric acid, 5 parts of corn starch, 3 parts of sawdust, 6 parts of aluminum powder, 8 parts of rubber powder, 6 parts of boric acid, 26 parts of water.
[0051] The preparation steps of energy-saving and heat-preserving exterior wall putty are as follows:
[0052] (1) Heat half of the water to 60°C, add it to a stirring tank, add talc and silica, stir evenly, pour it into a reactor with a thermometer, add benzoic acid when heated to 160°C, keep warm React for 4 hours, cool to room temperature, add sodium hydroxide, and adjust the pH to 7.8;
[0053] (2) Put the sawdust in a sawdust crusher, mechanically crush it, put it in a mixer, add cornstarch, stir for 30 minutes, take it out, and set aside;
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Example Embodiment
[0058] Example 3 An energy-saving and heat-preserving exterior wall putty was prepared from the following main raw materials (15kg each): 40 parts talc, 18 parts silicon dioxide, 10 parts hydroxypropyl methylcellulose, 7 parts plant ash , 4.5 parts of benzoic acid, 3.5 parts of citric acid, 3.5 parts of corn starch, 1.5 parts of sawdust, 4 parts of aluminum powder, 5 parts of rubber powder, 4.5 parts of boric acid, 23 parts of water.
[0059] The preparation steps of energy-saving and heat-preserving exterior wall putty are as follows:
[0060] (1) Heat half the mass of water to 53°C, add it to the stirring tank, add talc and silica, stir evenly, pour it into a reactor with a thermometer, add benzoic acid when heated to 145°C, keep warm React for 3 hours, cool to room temperature, add sodium hydroxide to adjust the pH to 7.4;
[0061] (2) Put the sawdust in a sawdust crusher, mechanically crush it, put it in a mixer, add corn starch, stir for 23 minutes, take it out, and set aside; ...
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