Preparation method of high-strength high-heat-conductivity porous ceramic
A porous ceramic, high thermal conductivity technology, applied in ceramic products, applications, household appliances, etc., can solve the problems of poor thermal conductivity of porous ceramics, easy cracking and poor strength of porous ceramics, and achieve the effect of enhancing mechanical properties.
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example 1
[0024]Weigh 500g of moso bamboo slices and put them into a beaker, impregnate the moso bamboo slices with 5% hydrochloric acid for 2 hours, take out the bamboo slices after dipping, then pour 20% sodium hydroxide solution into the beaker to impregnate the moso bamboo slices, Place the beaker in a water bath with a water bath temperature of 90°C, react at a constant temperature for 5 hours, filter to obtain the filter residue after the reaction, wash the filter residue with distilled water for 3 times, and then put it into a grinder to grind into silk to obtain the reaction product; the above reaction product and mass Tetraethyl silicate solution with a fraction of 3% was mixed and put into the conical flask according to the mass ratio of 1:10, and the conical flask was placed in an ultrasonic oscillator, and the vibration frequency was 40kHz for 60 minutes, and filtered after the vibration was completed. Obtain a filter cake, put the filter cake into an oven, and dry it for 2 h...
example 2
[0026] Weigh 700g of moso bamboo slices into a beaker, impregnate the moso bamboo slices with 7% hydrochloric acid for 2.5 hours, take out the bamboo slices after dipping, and then pour 21% sodium hydroxide solution into the beaker to impregnate the moso bamboo slices , put the beaker in a water bath with a water bath temperature of 95°C, react at a constant temperature for 5.5 hours, filter the filter residue after the reaction, wash the filter residue with distilled water for 4 times, put it into a grinder and grind it into silk to obtain the reaction product; the above reaction product Mix it with tetraethyl orthosilicate solution with a mass fraction of 4% and put it into a conical flask at a mass ratio of 1:10, place the conical flask in an ultrasonic oscillator, and vibrate for 65min at an oscillation frequency of 45kHz, and the oscillation ends After filtering to obtain a filter cake, put the filter cake in an oven, and dry it at a temperature of 90°C for 2.5 hours to ob...
example 3
[0028] Weigh 800g of moso bamboo slices and put them into a beaker, impregnate the moso bamboo slices with 8% hydrochloric acid for 3 hours, take out the bamboo slices after dipping, then pour 22% sodium hydroxide solution into the beaker to impregnate the moso bamboo slices, Place the beaker in a water bath with a water bath temperature of 100°C, react at a constant temperature for 6 hours, filter to obtain the filter residue after the reaction, wash the filter residue with distilled water for 5 times, and then put it into a grinder to grind into silk to obtain the reaction product; the above reaction product and mass Tetraethyl silicate solution with a fraction of 5% was mixed and put into the conical flask according to the mass ratio of 1:10, and the conical flask was placed in the ultrasonic oscillator, and the vibration frequency was 50kHz for 70min, and filtered after the vibration was completed. Obtain a filter cake, put the filter cake in an oven, and dry it at a temper...
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