A kind of porous thermal insulation material based on zr-mof derivatives and its preparation method
A technology of thermal insulation materials and derivatives, applied in ceramic products, other household appliances, applications, etc., can solve the problems of high porosity, low strength, complex process, etc., and achieve the effect of reducing structural collapse and excellent thermal insulation performance
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Embodiment 1
[0028] This embodiment provides a method of preparing a porous heat insulating material based on a Zr-MOF derivative, comprising the steps of:
[0029] 1) 10mmolzrcl 4 EtOAc (EtOAc) EtOAc. After the end of the reaction (2000 r / min, 2min) obtained solid, after 3 times was washed 3 times with anhydrous ethanol solution, dried in an oven at 60 ° C. After mixing the dry white solid was mixed with 5 mmol sodium nitrate, it was placed in a crucible, and under an inert gas argon was protected from 500 ° C at a temperature rise rate of 5 ° C / min, and at this temperature of 3 h, it was allowed to cool to room temperature. Take it to obtain a Zr-Mof derivative.
[0030] 2) Mix the Zr-MOF derivative obtained by step 1) and a mass of 28% of the mass fraction (Zr-MOF derivative and the mass ratio of the phosphoric acid dihydrogenation) 1: (0.01-1) Afterwards, it was placed in an oven at 120 ° C for 8 h to obtain a porous heat insulating material based on the Zr-MOF derivative.
Embodiment 2
[0032] This embodiment provides a method of preparing a porous heat insulating material based on a Zr-MOF derivative, comprising the steps of:
[0033] 1) Take 10 mmolzrcl separately 4 10 mmol specialty is dissolved in 20 mLDMF, and 2 mL of formic acid (pure) was mixed after mixing, stirred at 120 ° C for 0.5 h, and the container was charged in an oven at 120 ° C for 24 h. After the end of the reaction, centrifugation (2000 r / min, 2min) obtained solid, washed with anhydrous ethanol 4 times, dried in an oven at 60 ° C for 3 h. After mixing the dry white solid was mixed with 10 mmol of sodium nitrate, it was raised to 450 ° C under the inert gas nitrogen gas protection, and the temperature of the heating speed of 5 ° C / min was raised to 450 ° C, and the temperature was insulated at this temperature, cooled to room temperature. To obtain a Zr-Mof derivative.
[0034] 2) Mix the Zr-MOF derivative and mass of 25% of the mass fraction (Zr-MOF derivative and the mass ratio of the pho...
Embodiment 3
[0036] This embodiment provides a method of preparing a porous heat insulating material based on a Zr-MOF derivative, comprising the steps of:
[0037] 1) 10mmolzrcl 4 10 mmol xenzophenylene is dissolved in 20 ml DMF, and 2 ml of formic acid (pure) was mixed after mixing the two parts, and stirred at 20 ° C for 0.5 h. After the end of the reaction, centrifugation (2000 r / min, 2min) obtained solid, washed with anhydrous ethanol 3, and dried in an oven at 100 ° C for 2 h. After mixing the dry white solid was mixed with 10 mmol sodium nitrate, it was placed in a crucible, and under an inert gas argon was protected to 550 ° C, it was raised to 550 ° C, and at which 2 h was held at this temperature, it was cooled to room temperature. Take it to obtain a Zr-Mof derivative.
[0038] 2) Mixing the Zr-MOF derivative and mass of 30% of the mass fraction (the mass ratio of the Zr-MOF derivative and the pelletary aluminum aluminum) is 1: 0.01-1), then add 120 ° C oven. The internal heat pre...
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