Anti-cracking thermal insulation polyethylene water delivery pipe
A polyethylene and water pipe technology, applied in the field of building polymer materials, can solve problems such as poor thermal insulation performance and anti-cracking performance, and achieve the effects of improving binding force, increasing porosity, and improving hydrophobicity
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[0022]Mix titanium dioxide and potassium carbonate in a grinder at a molar ratio of 4.0:1.5, mix and grind for 20-30 hours to obtain a mixed powder, and then calcinate the mixed powder at a constant temperature of 700-800°C for 18-20 hours to obtain a pre-mixed powder. Modified powder blank, after the pre-modified powder blank is washed 5-10 times with hydrochloric acid with a mass fraction of 20-25%, and dried at a temperature of 80-90°C for 1-2 hours, the pre-modified powder is obtained ; Mix ethyl orthosilicate and ethanol solution with a mass fraction of 50-60% in a beaker at a mass ratio of 1:10 to 1:15, and add oxalic acid 2 to 3 times the mass of orthosilicate to the beaker , at a temperature of 40-50°C and a rotational speed of 280-350r / min, after stirring and reacting for 1-2 hours, a mixture of ethyl orthosilicate is obtained, and the mixture of ethyl orthosilicate is adjusted with ammonia water with a mass fraction of 10-18%. After the pH of the ester mixture reache...
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