CN113683864A - Preparation method of liquid paste-like thermal insulation material - Google Patents
Preparation method of liquid paste-like thermal insulation material Download PDFInfo
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Abstract
The invention discloses a preparation method of a liquid paste-shaped heat-insulating material, which belongs to the technical field of heat-insulating material processing and comprises the following steps: (1) carrying out corona treatment; (2) calcining; (3) ionizing infiltration-ultrasonic coupling treatment; (4) performing bead grinding treatment; (5) performing dispersion treatment; (6) carrying out cryogenic treatment; (7) carrying out superfine grinding treatment; (8) and (5) stirring and uniformly mixing. The application provides a preparation method of a liquid paste heat-insulating material, and all steps have mutual synergistic effect, so that the finally prepared heat-insulating material has stable heat conductivity coefficient along with the rise of temperature, small change along with the temperature, and good heat-insulating effect.
Description
Technical Field
The invention belongs to the technical field of heat insulation material processing, and particularly relates to a preparation method of a liquid paste heat insulation material.
Background
The heat preservation refers to a process measure for reducing the heat transfer from an internal heat source of a heat preservation object to the outside of the object, and in order to achieve the purpose of heat preservation, specific materials and structures with special properties need to be adopted, and the materials are called heat preservation materials. The heat-insulating material has the following functions: (1) scald is prevented; (2) energy is saved; (3) ensuring the process; (4) the environment is improved; (5) protecting equipment; (6) sound absorption and insulation. And thus has a wide range of applications.
At present, although there are cases in the industry where various functional raw materials are used in combination to prepare thermal insulation materials, the prepared thermal insulation materials are often poor in thermal insulation effect due to filling limitations such as interface effect and agglomeration.
Disclosure of Invention
The invention aims to provide a preparation method of a liquid paste thermal insulation material aiming at the existing problems.
The invention is realized by the following technical scheme:
a preparation method of a liquid paste-like heat insulation material comprises the following steps:
(1) corona treatment:
placing the ceramic hollow microspheres in a corona discharge instrument for corona treatment, and taking out for later use after the corona treatment is finished;
(2) calcining treatment:
placing the expanded perlite in a muffle furnace for high-temperature calcination treatment, and taking out for later use after the calcination treatment is finished;
(3) ionization infiltration-ultrasonic coupling treatment:
immersing the hollow fibers into an ionization solution, pouring the hollow fibers into an electrolytic bath together to enable the ionization solution to completely immerse the hollow fibers, immersing an ultrasonic probe into a position 2-3 cm below the liquid level of the ionization solution, switching on a power supply, performing ionization infiltration-ultrasonic coupling treatment, filtering out the hollow fibers after completion, washing with pure water for 3-5 times, and drying for later use;
(4) bead grinding treatment:
putting the ceramic hollow microspheres subjected to corona treatment in the step (1), the expanded perlite subjected to calcination treatment in the step (2) and the hollow fibers subjected to ionization infiltration-ultrasonic coupling treatment in the step (3) into a bead mill according to the weight ratio of 6-8: 3-4: 1 for grinding to obtain mixed powder A for later use;
(5) and (3) dispersion treatment:
placing the mixed powder A obtained in the step (4) and liquid epoxy resin together in a dispersing cylinder according to the weight ratio of 1: 3-4, and uniformly dispersing to obtain a mixture A for later use;
(6) cryogenic treatment:
placing the mixture A obtained in the step (5) in liquid nitrogen for subzero treatment, and taking out after 20-30 s of treatment;
(7) ultramicro crushing treatment:
taking the mixture A in the step (6) out of liquid nitrogen, immediately placing the mixture A in an ultrafine grinder for ultrafine grinding treatment, and obtaining mixed powder B for later use;
(8) stirring and uniformly mixing:
weighing 23-26 parts by weight of the mixed powder B obtained in the step (7), 70-80 parts by weight of liquid epoxy resin, 13-17 parts by weight of rosin, 7-9 parts by weight of soybean lecithin and 0.7-0.9 part by weight of polydimethylsiloxane, putting the mixture into a high-pressure stirring tank, raising the temperature in the stirring tank to 180-220 ℃, and stirring at the rotating speed of 400-600 rpm for 40-60 min.
Further, the control voltage during the corona treatment in the step (1) is 10-12 kV, and the time of the corona treatment is 40-50 s.
Further, the temperature is controlled to be 1000-1300 ℃ during the high-temperature treatment in the step (2).
Further, the ionization solution in the step (3) comprises the following components in percentage by weight: 3-4% of sodium hydroxide, 2-3% of fulvic acid, 2-4% of ammonium hydrogen nitrate, 0.4-0.7% of silver chloride, 0.5-0.8% of copper chloride and the balance of water.
Further, during the ionization infiltration-ultrasonic coupling treatment in the step (3), the voltage is controlled to be 200-220V, the current is 4-6A, the frequency of the ultrasonic wave is 40-50 kHz, and the treatment time is 20-30 min.
Further, the rotating speed of the bead mill is controlled to be 1000-2000 rpm during the bead milling treatment in the step (4).
Further, the rotation speed of the pulverizer is controlled to be 4000-6000 rpm during the ultrafine grinding treatment in the step (7).
Compared with the prior art, the invention has the following advantages:
1. the method comprises the steps of respectively treating a plurality of fillers before mixing, improving the surface activity and the wettability of the fillers, carrying out corona treatment on the ceramic hollow microspheres, forming a low-temperature plasma region on the surfaces of the ceramic hollow microspheres through discharging, improving the surface tension, improving the surface activity, weakening the interface effect between the ceramic hollow microspheres and other substances, forming micro-concave dense holes inside and outside the ceramic hollow microspheres, increasing the porosity, and enabling the ceramic hollow microspheres to be in a static state when air enters so as to greatly inhibit the air flow, thereby improving the heat preservation characteristic of the ceramic hollow microspheres; the expanded perlite is subjected to high-temperature calcination treatment, and the volume is expanded, the specific surface area is increased, and the surface wettability is increased; the hollow fiber is subjected to ionization infiltration-ultrasonic coupling treatment, the ionized positive root ions and negative root ions act on the hollow fiber, and the polymerization degree of the hollow fiber is reduced, the hollow fiber is refined and the surface activity of the hollow fiber is improved by combining the acoustic flow effect, the cavitation effect, the thermal effect and other effects of ultrasonic waves.
2. This application will be handled ceramic hollow bead, expanded perlite, hollow fiber and arrange the pearl mill in according to suitable proportion and carry out the pearl mill and handle in the pearl mill, and the kinetic energy that produces is by effectual absorption in carrying out the pearl mill in-process, further weakens the interface effect between three kinds of fillers when refining, promotes the interfusion each other between the three.
3. This application disperses the mixture with gained mixed powder and epoxy, epoxy wraps up and forms one deck epoxy protective layer on mixed powder's surface, carry out cryogenic treatment this moment, rapid cooling, produce very big difference in temperature inside and outside the mixture in the very short time, because the constraint effect of outer epoxy, the inside and outside difference in temperature that produces can produce very big internal stress in mixed powder's inside in the very short time, the processing of superfine grinding is carried out immediately after taking out from the liquid nitrogen, superfine kibbling mechanical force and internal stress are mutually in coordination, refine the homogeneity powder, the particle size of little mixed powder, simultaneously under the mutual synergistic effect of internal and external force, the constraint of epoxy is broken through to the internal stress, further weaken or even eliminate completely between each filler, and the interfacial effect between filler and the epoxy, promote the fusion between each raw materials.
4. The application provides a preparation method of a liquid paste heat-insulating material, and all steps have mutual synergistic effect, so that the finally prepared heat-insulating material has stable heat conductivity coefficient along with the rise of temperature, small change along with the temperature, and good heat-insulating effect.
Detailed Description
A preparation method of a liquid paste-like heat insulation material comprises the following steps:
(1) corona treatment:
placing the ceramic hollow microspheres in a corona discharge instrument for corona treatment, controlling the voltage to be 10-12 kV, and taking out for later use after corona treatment for 40-50 s;
(2) calcining treatment:
placing the expanded perlite in a muffle furnace for high-temperature calcination treatment, controlling the temperature to be 1000-1300 ℃, and taking out for later use after completion;
(3) ionization infiltration-ultrasonic coupling treatment:
immersing hollow fibers into an ionization solution, pouring the hollow fibers into an electrolytic bath together to enable the ionization solution to completely immerse the hollow fibers, immersing an ultrasonic probe into a position 2-3 cm below the liquid level of the ionization solution, switching on a power supply to perform ionization infiltration-ultrasonic coupling treatment, controlling the voltage to be 200-220V, controlling the current to be 4-6A, controlling the frequency of ultrasonic waves to be 40-50 kHz, filtering out the hollow fibers after 20-30 min treatment, washing with pure water for 3-5 times, and drying for later use, wherein the ionization solution comprises the following components in percentage by weight: 3-4% of sodium hydroxide, 2-3% of fulvic acid, 2-4% of ammonium hydrogen nitrate, 0.4-0.7% of silver chloride, 0.5-0.8% of copper chloride and the balance of water;
(4) bead grinding treatment:
putting the ceramic hollow microspheres subjected to corona treatment in the step (1), the expanded perlite subjected to calcination treatment in the step (2) and the hollow fibers subjected to ionization infiltration-ultrasonic coupling treatment in the step (3) into a bead mill according to the weight ratio of 6-8: 3-4: 1 for grinding, wherein the rotation speed of the bead mill is 1000-2000 rpm, and obtaining mixed powder A for later use;
(5) and (3) dispersion treatment:
placing the mixed powder A obtained in the step (4) and liquid epoxy resin together in a dispersing cylinder according to the weight ratio of 1: 3-4, and uniformly dispersing to obtain a mixture A for later use;
(6) cryogenic treatment:
placing the mixture A obtained in the step (5) in liquid nitrogen for subzero treatment, and taking out after 20-30 s of treatment;
(7) ultramicro crushing treatment:
taking the mixture A obtained in the step (6) out of liquid nitrogen, immediately placing the mixture A in an ultrafine grinder for ultrafine grinding treatment, and controlling the rotating speed of the grinder to be 4000-6000 rpm to obtain mixed powder B for later use;
(8) stirring and uniformly mixing:
weighing 23-26 parts by weight of the mixed powder B obtained in the step (7), 70-80 parts by weight of liquid epoxy resin, 13-17 parts by weight of rosin, 7-9 parts by weight of soybean lecithin and 0.7-0.9 part by weight of polydimethylsiloxane, putting the mixture into a high-pressure stirring tank, raising the temperature in the stirring tank to 180-220 ℃, and stirring at the rotating speed of 400-600 rpm for 40-60 min.
For further explanation of the present invention, reference will now be made to the following specific examples.
Example 1
A preparation method of a liquid paste-like heat insulation material comprises the following steps:
(1) corona treatment:
placing the ceramic hollow microspheres in a corona discharge instrument for corona treatment, controlling the voltage to be 10kV, and taking out for later use after corona treatment for 40 s;
(2) calcining treatment:
placing the expanded perlite in a muffle furnace for high-temperature calcination treatment, controlling the temperature to be 1000 ℃, and taking out for later use after completion;
(3) ionization infiltration-ultrasonic coupling treatment:
immersing the hollow fiber into an ionization solution, pouring the hollow fiber into an electrolytic bath together to enable the ionization solution to completely immerse the hollow fiber, immersing an ultrasonic probe into a position 2cm below the liquid level of the ionization solution, switching on a power supply to perform ionization infiltration-ultrasonic coupling treatment, controlling the voltage to be 200V, controlling the current to be 4A, controlling the frequency of ultrasonic waves to be 40kHz, filtering out the hollow fiber after 20min treatment, cleaning with pure water for 3 times, and drying for later use, wherein the ionization solution comprises the following components in percentage by weight: 3% of sodium hydroxide, 2% of fulvic acid, 2% of ammonium hydrogen nitrate, 0.4% of silver chloride, 0.5% of copper chloride and the balance of water;
(4) bead grinding treatment:
putting the ceramic hollow microspheres subjected to corona treatment in the step (1), the expanded perlite subjected to calcination treatment in the step (2) and the hollow fibers subjected to ionization infiltration-ultrasonic coupling treatment in the step (3) into a bead mill according to the weight ratio of 6:3:1 for grinding, wherein the rotation speed of the bead mill is 1000rpm, and obtaining mixed powder A for later use;
(5) and (3) dispersion treatment:
putting the mixed powder A obtained in the step (4) and liquid epoxy resin together into a dispersion cylinder according to the weight ratio of 1:3, and uniformly dispersing to obtain a mixture A for later use;
(6) cryogenic treatment:
placing the mixture A obtained in the step (5) in liquid nitrogen for cryogenic treatment, and taking out immediately after 20 seconds of treatment;
(7) ultramicro crushing treatment:
taking the mixture A in the step (6) out of the liquid nitrogen, immediately placing the mixture A in an ultrafine grinder for ultrafine grinding treatment, and controlling the rotating speed of the grinder to be 4000rpm to obtain mixed powder B for later use;
(8) stirring and uniformly mixing:
weighing 23 parts of the mixed powder B obtained in the step (7), 70 parts of liquid epoxy resin, 13 parts of rosin, 7 parts of soybean lecithin and 0.7 part of polydimethylsiloxane by corresponding parts by weight, putting the weighed materials into a high-pressure stirring tank, raising the temperature in the stirring tank to 180 ℃, and stirring at the rotating speed of 400rpm for 40 min.
Example 2
A preparation method of a liquid paste-like heat insulation material comprises the following steps:
(1) corona treatment:
placing the ceramic hollow microspheres in a corona discharge instrument for corona treatment, controlling the voltage to be 11V, and taking out for later use after the corona treatment for 45 s;
(2) calcining treatment:
placing the expanded perlite in a muffle furnace for high-temperature calcination treatment, controlling the temperature to 1150 ℃, and taking out for later use after completion;
(3) ionization infiltration-ultrasonic coupling treatment:
immersing the hollow fibers into an ionization solution, pouring the hollow fibers into an electrolytic bath together to enable the ionization solution to completely immerse the hollow fibers, immersing an ultrasonic probe into a position 2.5cm below the liquid level of the ionization solution, switching on a power supply to perform ionization infiltration-ultrasonic coupling treatment, controlling the voltage to be 210V, controlling the current to be 5A, controlling the frequency of ultrasonic waves to be 45kHz, filtering out the hollow fibers after 25min treatment, washing the hollow fibers for 4 times by pure water, and drying the hollow fibers for later use, wherein the ionization solution comprises the following components in percentage by weight: 3.5% of sodium hydroxide, 2.5% of fulvic acid, 3% of ammonium hydrogen nitrate, 0.55% of silver chloride, 0.65% of copper chloride and the balance of water;
(4) bead grinding treatment:
putting the ceramic hollow microspheres subjected to corona treatment in the step (1), the expanded perlite subjected to calcination treatment in the step (2) and the hollow fibers subjected to ionization infiltration-ultrasonic coupling treatment in the step (3) into a bead mill according to the weight ratio of 7:3.5:1 for grinding, wherein the rotating speed of the bead mill is 1500rpm, and obtaining mixed powder A for later use;
(5) and (3) dispersion treatment:
putting the mixed powder A obtained in the step (4) and liquid epoxy resin together into a dispersion cylinder according to the weight ratio of 1:3.5, and uniformly dispersing to obtain a mixture A for later use;
(6) cryogenic treatment:
placing the mixture A obtained in the step (5) in liquid nitrogen for cryogenic treatment, and taking out immediately after 25 seconds of treatment;
(7) ultramicro crushing treatment:
taking the mixture A in the step (6) out of the liquid nitrogen, immediately placing the mixture A in an ultrafine grinder for ultrafine grinding treatment, controlling the rotating speed of the grinder to be 5000rpm, and obtaining mixed powder B for later use;
(8) stirring and uniformly mixing:
weighing 24.5 parts by weight of the mixed powder B obtained in the step (7), 75 parts by weight of liquid epoxy resin, 15 parts by weight of rosin, 8 parts by weight of soybean lecithin and 0.8 part by weight of polydimethylsiloxane, putting the mixture into a high-pressure stirring tank, raising the temperature in the stirring tank to 200 ℃, and stirring at the rotating speed of 500rpm for 50 min.
Example 3
A preparation method of a liquid paste-like heat insulation material comprises the following steps:
(1) corona treatment:
placing the ceramic hollow microspheres in a corona discharge instrument for corona treatment, controlling the voltage to be 12kV, and taking out for later use after corona treatment for 50 s;
(2) calcining treatment:
placing the expanded perlite in a muffle furnace for high-temperature calcination treatment, controlling the temperature to be 1300 ℃, and taking out for later use after the calcination treatment is finished;
(3) ionization infiltration-ultrasonic coupling treatment:
immersing the hollow fiber into an ionization solution, pouring the hollow fiber into an electrolytic bath together to enable the ionization solution to completely immerse the hollow fiber, immersing an ultrasonic probe into a position 3cm below the liquid level of the ionization solution, switching on a power supply to perform ionization infiltration-ultrasonic coupling treatment, controlling the voltage to be 220V, controlling the current to be 6A, controlling the frequency of ultrasonic to be 50kHz, filtering out the hollow fiber after 30min treatment, washing with pure water for 5 times, and drying for later use, wherein the ionization solution comprises the following components in percentage by weight: 4% of sodium hydroxide, 3% of fulvic acid, 4% of ammonium hydrogen nitrate, 0.7% of silver chloride, 0.8% of copper chloride and the balance of water;
(4) bead grinding treatment:
putting the ceramic hollow microspheres subjected to corona treatment in the step (1), the expanded perlite subjected to calcination treatment in the step (2) and the hollow fibers subjected to ionization infiltration-ultrasonic coupling treatment in the step (3) into a bead mill according to the weight ratio of 8:4:1 for grinding, wherein the rotating speed of the bead mill is 2000rpm, and obtaining mixed powder A for later use;
(5) and (3) dispersion treatment:
putting the mixed powder A obtained in the step (4) and liquid epoxy resin together into a dispersion cylinder according to the weight ratio of 1:4, and uniformly dispersing to obtain a mixture A for later use;
(6) cryogenic treatment:
placing the mixture A obtained in the step (5) in liquid nitrogen for cryogenic treatment, and taking out immediately after treating for 30 s;
(7) ultramicro crushing treatment:
taking the mixture A in the step (6) out of liquid nitrogen, immediately placing the mixture A in an ultrafine grinder for ultrafine grinding treatment, and controlling the rotating speed of the grinder to be 6000rpm to obtain mixed powder B for later use;
(8) stirring and uniformly mixing:
and (3) weighing 26 parts of the mixed powder B obtained in the step (7), 80 parts of liquid epoxy resin, 17 parts of rosin, 9 parts of soybean lecithin and 0.9 part of polydimethylsiloxane by corresponding parts by weight, putting the mixture into a high-pressure stirring tank, raising the temperature in the stirring tank to 220 ℃, and stirring at the rotating speed of 600rpm for 60 min.
Example 4
A preparation method of a liquid paste-like heat insulation material comprises the following steps:
(1) calcining treatment:
placing the expanded perlite in a muffle furnace for high-temperature calcination treatment, controlling the temperature to 1150 ℃, and taking out for later use after completion;
(2) ionization infiltration-ultrasonic coupling treatment:
immersing the hollow fibers into an ionization solution, pouring the hollow fibers into an electrolytic bath together to enable the ionization solution to completely immerse the hollow fibers, immersing an ultrasonic probe into a position 2.5cm below the liquid level of the ionization solution, switching on a power supply to perform ionization infiltration-ultrasonic coupling treatment, controlling the voltage to be 210V, controlling the current to be 5A, controlling the frequency of ultrasonic waves to be 45kHz, filtering out the hollow fibers after 25min treatment, washing the hollow fibers for 4 times by pure water, and drying the hollow fibers for later use, wherein the ionization solution comprises the following components in percentage by weight: 3.5% of sodium hydroxide, 2.5% of fulvic acid, 3% of ammonium hydrogen nitrate, 0.55% of silver chloride, 0.65% of copper chloride and the balance of water;
(3) bead grinding treatment:
putting ceramic hollow microspheres, the expanded perlite calcined in the step (1) and the hollow fibers subjected to ionization infiltration-ultrasonic coupling treatment in the step (2) into a bead mill according to the weight ratio of 7:3.5:1 for grinding, wherein the rotation speed of the bead mill is 1500rpm, and obtaining mixed powder A for later use;
(4) and (3) dispersion treatment:
putting the mixed powder A obtained in the step (3) and liquid epoxy resin together into a dispersion cylinder according to the weight ratio of 1:3.5, and uniformly dispersing to obtain a mixture A for later use;
(5) cryogenic treatment:
placing the mixture A obtained in the step (4) in liquid nitrogen for cryogenic treatment, and taking out immediately after 25 seconds of treatment;
(6) ultramicro crushing treatment:
taking the mixture A in the step (5) out of liquid nitrogen, immediately placing the mixture A in an ultrafine grinder for ultrafine grinding treatment, controlling the rotating speed of the grinder to be 5000rpm, and obtaining mixed powder B for later use;
(7) stirring and uniformly mixing:
weighing 24.5 parts by weight of the mixed powder B obtained in the step (6), 75 parts by weight of liquid epoxy resin, 15 parts by weight of rosin, 8 parts by weight of soybean lecithin and 0.8 part by weight of polydimethylsiloxane, putting the mixture into a high-pressure stirring tank, raising the temperature in the stirring tank to 200 ℃, and stirring at the rotating speed of 500rpm for 50 min.
Example 5
A preparation method of a liquid paste-like heat insulation material comprises the following steps:
(1) corona treatment:
placing the ceramic hollow microspheres in a corona discharge instrument for corona treatment, controlling the voltage to be 11V, and taking out for later use after the corona treatment for 45 s;
(2) ionization infiltration-ultrasonic coupling treatment:
immersing the hollow fibers into an ionization solution, pouring the hollow fibers into an electrolytic bath together to enable the ionization solution to completely immerse the hollow fibers, immersing an ultrasonic probe into a position 2.5cm below the liquid level of the ionization solution, switching on a power supply to perform ionization infiltration-ultrasonic coupling treatment, controlling the voltage to be 210V, controlling the current to be 5A, controlling the frequency of ultrasonic waves to be 45kHz, filtering out the hollow fibers after 25min treatment, washing the hollow fibers for 4 times by pure water, and drying the hollow fibers for later use, wherein the ionization solution comprises the following components in percentage by weight: 3.5% of sodium hydroxide, 2.5% of fulvic acid, 3% of ammonium hydrogen nitrate, 0.55% of silver chloride, 0.65% of copper chloride and the balance of water;
(3) bead grinding treatment:
putting the ceramic hollow microspheres subjected to corona treatment in the step (1), expanded perlite and the hollow fibers subjected to ionization infiltration-ultrasonic coupling treatment in the step (2) into a bead mill according to the weight ratio of 7:3.5:1 for grinding, wherein the rotation speed of the bead mill is 1500rpm, and obtaining mixed powder A for later use;
(4) and (3) dispersion treatment:
putting the mixed powder A obtained in the step (3) and liquid epoxy resin together into a dispersion cylinder according to the weight ratio of 1:3.5, and uniformly dispersing to obtain a mixture A for later use;
(5) cryogenic treatment:
placing the mixture A obtained in the step (4) in liquid nitrogen for cryogenic treatment, and taking out immediately after 25 seconds of treatment;
(6) ultramicro crushing treatment:
taking the mixture A in the step (5) out of liquid nitrogen, immediately placing the mixture A in an ultrafine grinder for ultrafine grinding treatment, controlling the rotating speed of the grinder to be 5000rpm, and obtaining mixed powder B for later use;
(7) stirring and uniformly mixing:
weighing 24.5 parts by weight of the mixed powder B obtained in the step (6), 75 parts by weight of liquid epoxy resin, 15 parts by weight of rosin, 8 parts by weight of soybean lecithin and 0.8 part by weight of polydimethylsiloxane, putting the mixture into a high-pressure stirring tank, raising the temperature in the stirring tank to 200 ℃, and stirring at the rotating speed of 500rpm for 50 min.
Example 6
A preparation method of a liquid paste-like heat insulation material comprises the following steps:
(1) corona treatment:
placing the ceramic hollow microspheres in a corona discharge instrument for corona treatment, controlling the voltage to be 11V, and taking out for later use after the corona treatment for 45 s;
(2) calcining treatment:
placing the expanded perlite in a muffle furnace for high-temperature calcination treatment, controlling the temperature to 1150 ℃, and taking out for later use after completion;
(3) ionization infiltration treatment:
immersing the hollow fibers into an ionization solution, pouring the hollow fibers into an electrolytic bath together to enable the ionization solution to completely immerse the hollow fibers, immersing an ultrasonic probe into a position 2.5cm below the liquid level of the ionization solution, switching on a power supply to perform ionization infiltration treatment, controlling the voltage to be 210V and the current to be 5A, filtering out the hollow fibers after 25min of treatment, washing with pure water for 4 times, and drying for later use, wherein the ionization solution comprises the following components in percentage by weight: 3.5% of sodium hydroxide, 2.5% of fulvic acid, 3% of ammonium hydrogen nitrate, 0.55% of silver chloride, 0.65% of copper chloride and the balance of water;
(4) bead grinding treatment:
putting the ceramic hollow microspheres subjected to corona treatment in the step (1), the expanded perlite subjected to calcination treatment in the step (2) and the hollow fibers subjected to ionization infiltration-ultrasonic coupling treatment in the step (3) into a bead mill according to the weight ratio of 7:3.5:1 for grinding, wherein the rotating speed of the bead mill is 1500rpm, and obtaining mixed powder A for later use;
(5) and (3) dispersion treatment:
putting the mixed powder A obtained in the step (4) and liquid epoxy resin together into a dispersion cylinder according to the weight ratio of 1:3.5, and uniformly dispersing to obtain a mixture A for later use;
(6) cryogenic treatment:
placing the mixture A obtained in the step (5) in liquid nitrogen for cryogenic treatment, and taking out immediately after 25 seconds of treatment;
(7) ultramicro crushing treatment:
taking the mixture A in the step (6) out of the liquid nitrogen, immediately placing the mixture A in an ultrafine grinder for ultrafine grinding treatment, controlling the rotating speed of the grinder to be 5000rpm, and obtaining mixed powder B for later use;
(8) stirring and uniformly mixing:
weighing 24.5 parts by weight of the mixed powder B obtained in the step (7), 75 parts by weight of liquid epoxy resin, 15 parts by weight of rosin, 8 parts by weight of soybean lecithin and 0.8 part by weight of polydimethylsiloxane, putting the mixture into a high-pressure stirring tank, raising the temperature in the stirring tank to 200 ℃, and stirring at the rotating speed of 500rpm for 50 min.
Example 7
A preparation method of a liquid paste-like heat insulation material comprises the following steps:
(1) corona treatment:
placing the ceramic hollow microspheres in a corona discharge instrument for corona treatment, controlling the voltage to be 11V, and taking out for later use after the corona treatment for 45 s;
(2) calcining treatment:
placing the expanded perlite in a muffle furnace for high-temperature calcination treatment, controlling the temperature to 1150 ℃, and taking out for later use after completion;
(3) ultrasonic treatment:
immersing the hollow fibers into an ionization solution, pouring the ionization solution into an electrolytic bath together to enable the ionization solution to completely immerse the hollow fibers, immersing an ultrasonic probe into a position 2.5cm below the liquid level of the ionization solution, performing ultrasonic treatment, controlling the frequency of ultrasonic waves to be 45kHz, filtering out the hollow fibers after 25min of treatment, cleaning with pure water for 4 times, and drying for later use, wherein the ionization solution comprises the following components in percentage by weight: 3.5% of sodium hydroxide, 2.5% of fulvic acid, 3% of ammonium hydrogen nitrate, 0.55% of silver chloride, 0.65% of copper chloride and the balance of water;
(4) bead grinding treatment:
putting the ceramic hollow microspheres subjected to corona treatment in the step (1), the expanded perlite subjected to calcination treatment in the step (2) and the hollow fibers subjected to ionization infiltration-ultrasonic coupling treatment in the step (3) into a bead mill according to the weight ratio of 7:3.5:1 for grinding, wherein the rotating speed of the bead mill is 1500rpm, and obtaining mixed powder A for later use;
(5) and (3) dispersion treatment:
putting the mixed powder A obtained in the step (4) and liquid epoxy resin together into a dispersion cylinder according to the weight ratio of 1:3.5, and uniformly dispersing to obtain a mixture A for later use;
(6) cryogenic treatment:
placing the mixture A obtained in the step (5) in liquid nitrogen for cryogenic treatment, and taking out immediately after 25 seconds of treatment;
(7) ultramicro crushing treatment:
taking the mixture A in the step (6) out of the liquid nitrogen, immediately placing the mixture A in an ultrafine grinder for ultrafine grinding treatment, controlling the rotating speed of the grinder to be 5000rpm, and obtaining mixed powder B for later use;
(8) stirring and uniformly mixing:
weighing 24.5 parts by weight of the mixed powder B obtained in the step (7), 75 parts by weight of liquid epoxy resin, 15 parts by weight of rosin, 8 parts by weight of soybean lecithin and 0.8 part by weight of polydimethylsiloxane, putting the mixture into a high-pressure stirring tank, raising the temperature in the stirring tank to 200 ℃, and stirring at the rotating speed of 500rpm for 50 min.
Example 8
A preparation method of a liquid paste-like heat insulation material comprises the following steps:
(1) corona treatment:
placing the ceramic hollow microspheres in a corona discharge instrument for corona treatment, controlling the voltage to be 11V, and taking out for later use after the corona treatment for 45 s;
(2) calcining treatment:
placing the expanded perlite in a muffle furnace for high-temperature calcination treatment, controlling the temperature to 1150 ℃, and taking out for later use after completion;
(3) bead grinding treatment:
putting the ceramic hollow microspheres subjected to corona treatment in the step (1), the expanded perlite calcined in the step (2) and the hollow fibers into a bead mill together according to the weight ratio of 7:3.5:1 for grinding, wherein the rotation speed of the bead mill is 1500rpm, and obtaining mixed powder A for later use;
(4) and (3) dispersion treatment:
putting the mixed powder A obtained in the step (3) and liquid epoxy resin together into a dispersion cylinder according to the weight ratio of 1:3.5, and uniformly dispersing to obtain a mixture A for later use;
(5) cryogenic treatment:
placing the mixture A obtained in the step (4) in liquid nitrogen for cryogenic treatment, and taking out immediately after 25 seconds of treatment;
(6) ultramicro crushing treatment:
taking the mixture A in the step (5) out of liquid nitrogen, immediately placing the mixture A in an ultrafine grinder for ultrafine grinding treatment, controlling the rotating speed of the grinder to be 5000rpm, and obtaining mixed powder B for later use;
(7) stirring and uniformly mixing:
weighing 24.5 parts by weight of the mixed powder B obtained in the step (6), 75 parts by weight of liquid epoxy resin, 15 parts by weight of rosin, 8 parts by weight of soybean lecithin and 0.8 part by weight of polydimethylsiloxane, putting the mixture into a high-pressure stirring tank, raising the temperature in the stirring tank to 200 ℃, and stirring at the rotating speed of 500rpm for 50 min.
Example 9
A preparation method of a liquid paste-like heat insulation material comprises the following steps:
(1) calcining treatment:
placing the expanded perlite in a muffle furnace for high-temperature calcination treatment, controlling the temperature to 1150 ℃, and taking out for later use after completion;
(2) ionization infiltration-ultrasonic coupling treatment:
immersing the hollow fibers into an ionization solution, pouring the hollow fibers into an electrolytic bath together to enable the ionization solution to completely immerse the hollow fibers, immersing an ultrasonic probe into a position 2.5cm below the liquid level of the ionization solution, switching on a power supply to perform ionization infiltration-ultrasonic coupling treatment, controlling the voltage to be 210V, controlling the current to be 5A, controlling the frequency of ultrasonic waves to be 45kHz, filtering out the hollow fibers after 25min treatment, washing the hollow fibers for 4 times by pure water, and drying the hollow fibers for later use, wherein the ionization solution comprises the following components in percentage by weight: 3.5% of sodium hydroxide, 2.5% of fulvic acid, 3% of ammonium hydrogen nitrate, 0.55% of silver chloride, 0.65% of copper chloride and the balance of water;
(3) bead grinding treatment:
placing the expanded perlite calcined in the step (1) and the hollow fiber subjected to ionization infiltration-ultrasonic coupling treatment in the step (2) in a bead mill together according to the weight ratio of 3.5:1 for grinding, wherein the rotation speed of the bead mill is 1500rpm, and obtaining mixed powder A for later use;
(4) and (3) dispersion treatment:
putting the mixed powder A obtained in the step (3) and liquid epoxy resin together into a dispersion cylinder according to the weight ratio of 1:3.5, and uniformly dispersing to obtain a mixture A for later use;
(5) cryogenic treatment:
placing the mixture A obtained in the step (4) in liquid nitrogen for cryogenic treatment, and taking out immediately after 25 seconds of treatment;
(6) ultramicro crushing treatment:
taking the mixture A in the step (5) out of liquid nitrogen, immediately placing the mixture A in an ultrafine grinder for ultrafine grinding treatment, controlling the rotating speed of the grinder to be 5000rpm, and obtaining mixed powder B for later use;
(7) stirring and uniformly mixing:
weighing 24.5 parts by weight of the mixed powder B obtained in the step (6), 75 parts by weight of liquid epoxy resin, 15 parts by weight of rosin, 8 parts by weight of soybean lecithin and 0.8 part by weight of polydimethylsiloxane, putting the mixture into a high-pressure stirring tank, raising the temperature in the stirring tank to 200 ℃, and stirring at the rotating speed of 500rpm for 50 min.
Example 10
A preparation method of a liquid paste-like heat insulation material comprises the following steps:
(1) corona treatment:
placing the ceramic hollow microspheres in a corona discharge instrument for corona treatment, controlling the voltage to be 11V, and taking out for later use after the corona treatment for 45 s;
(2) ionization infiltration-ultrasonic coupling treatment:
immersing the hollow fibers into an ionization solution, pouring the hollow fibers into an electrolytic bath together to enable the ionization solution to completely immerse the hollow fibers, immersing an ultrasonic probe into a position 2.5cm below the liquid level of the ionization solution, switching on a power supply to perform ionization infiltration-ultrasonic coupling treatment, controlling the voltage to be 210V, controlling the current to be 5A, controlling the frequency of ultrasonic waves to be 45kHz, filtering out the hollow fibers after 25min treatment, washing the hollow fibers for 4 times by pure water, and drying the hollow fibers for later use, wherein the ionization solution comprises the following components in percentage by weight: 3.5% of sodium hydroxide, 2.5% of fulvic acid, 3% of ammonium hydrogen nitrate, 0.55% of silver chloride, 0.65% of copper chloride and the balance of water;
(3) bead grinding treatment:
putting the ceramic hollow microspheres subjected to corona treatment in the step (1) and the hollow fibers subjected to ionization infiltration-ultrasonic coupling treatment in the step (2) into a bead mill according to the weight ratio of 7:1 for grinding, wherein the rotation speed of the bead mill is 1500rpm, and obtaining mixed powder A for later use;
(4) and (3) dispersion treatment:
putting the mixed powder A obtained in the step (3) and liquid epoxy resin together into a dispersion cylinder according to the weight ratio of 1:3.5, and uniformly dispersing to obtain a mixture A for later use;
(5) cryogenic treatment:
placing the mixture A obtained in the step (4) in liquid nitrogen for cryogenic treatment, and taking out immediately after 25 seconds of treatment;
(6) ultramicro crushing treatment:
taking the mixture A in the step (5) out of liquid nitrogen, immediately placing the mixture A in an ultrafine grinder for ultrafine grinding treatment, controlling the rotating speed of the grinder to be 5000rpm, and obtaining mixed powder B for later use;
(7) stirring and uniformly mixing:
weighing 24.5 parts by weight of the mixed powder B obtained in the step (6), 75 parts by weight of liquid epoxy resin, 15 parts by weight of rosin, 8 parts by weight of soybean lecithin and 0.8 part by weight of polydimethylsiloxane, putting the mixture into a high-pressure stirring tank, raising the temperature in the stirring tank to 200 ℃, and stirring at the rotating speed of 500rpm for 50 min.
Example 11
A preparation method of a liquid paste-like heat insulation material comprises the following steps:
(1) corona treatment:
placing the ceramic hollow microspheres in a corona discharge instrument for corona treatment, controlling the voltage to be 11V, and taking out for later use after the corona treatment for 45 s;
(2) calcining treatment:
placing the expanded perlite in a muffle furnace for high-temperature calcination treatment, controlling the temperature to 1150 ℃, and taking out for later use after completion;
(3) bead grinding treatment:
putting the ceramic hollow microspheres subjected to corona treatment in the step (1) and the expanded perlite calcined in the step (2) into a bead mill according to the weight ratio of 7:3.5 for grinding, wherein the rotation speed of the bead mill is 1500rpm, and obtaining mixed powder A for later use;
(4) and (3) dispersion treatment:
putting the mixed powder A obtained in the step (3) and liquid epoxy resin together into a dispersion cylinder according to the weight ratio of 1:3.5, and uniformly dispersing to obtain a mixture A for later use;
(5) cryogenic treatment:
placing the mixture A obtained in the step (4) in liquid nitrogen for cryogenic treatment, and taking out immediately after 25 seconds of treatment;
(6) ultramicro crushing treatment:
taking the mixture A in the step (5) out of liquid nitrogen, immediately placing the mixture A in an ultrafine grinder for ultrafine grinding treatment, controlling the rotating speed of the grinder to be 5000rpm, and obtaining mixed powder B for later use;
(7) stirring and uniformly mixing:
weighing 24.5 parts by weight of the mixed powder B obtained in the step (6), 75 parts by weight of liquid epoxy resin, 15 parts by weight of rosin, 8 parts by weight of soybean lecithin and 0.8 part by weight of polydimethylsiloxane, putting the mixture into a high-pressure stirring tank, raising the temperature in the stirring tank to 200 ℃, and stirring at the rotating speed of 500rpm for 50 min.
Example 12
A preparation method of a liquid paste-like heat insulation material comprises the following steps:
(1) corona treatment:
placing the ceramic hollow microspheres in a corona discharge instrument for corona treatment, controlling the voltage to be 11V, and taking out for later use after the corona treatment for 45 s;
(2) calcining treatment:
placing the expanded perlite in a muffle furnace for high-temperature calcination treatment, controlling the temperature to 1150 ℃, and taking out for later use after completion;
(3) ionization infiltration-ultrasonic coupling treatment:
immersing the hollow fibers into an ionization solution, pouring the hollow fibers into an electrolytic bath together to enable the ionization solution to completely immerse the hollow fibers, immersing an ultrasonic probe into a position 2.5cm below the liquid level of the ionization solution, switching on a power supply to perform ionization infiltration-ultrasonic coupling treatment, controlling the voltage to be 210V, controlling the current to be 5A, controlling the frequency of ultrasonic waves to be 45kHz, filtering out the hollow fibers after 25min treatment, washing the hollow fibers for 4 times by pure water, and drying the hollow fibers for later use, wherein the ionization solution comprises the following components in percentage by weight: 3.5% of sodium hydroxide, 2.5% of fulvic acid, 3% of ammonium hydrogen nitrate, 0.55% of silver chloride, 0.65% of copper chloride and the balance of water;
(4) bead grinding treatment:
putting the ceramic hollow microspheres subjected to corona treatment in the step (1), the expanded perlite subjected to calcination treatment in the step (2) and the hollow fibers subjected to ionization infiltration-ultrasonic coupling treatment in the step (3) into a bead mill according to the weight ratio of 7:3.5:1 for grinding, wherein the rotating speed of the bead mill is 1500rpm, and obtaining mixed powder A for later use;
(5) and (3) dispersion treatment:
putting the mixed powder A obtained in the step (4) and liquid epoxy resin together into a dispersion cylinder according to the weight ratio of 1:3.5, and uniformly dispersing to obtain a mixture A for later use;
(6) ultramicro crushing treatment:
placing the mixture A obtained in the step (5) in an ultrafine grinder for ultrafine grinding treatment, controlling the rotating speed of the grinder to be 5000rpm, and obtaining mixed powder B for later use;
(7) stirring and uniformly mixing:
weighing 24.5 parts by weight of the mixed powder B obtained in the step (6), 75 parts by weight of liquid epoxy resin, 15 parts by weight of rosin, 8 parts by weight of soybean lecithin and 0.8 part by weight of polydimethylsiloxane, putting the mixture into a high-pressure stirring tank, raising the temperature in the stirring tank to 200 ℃, and stirring at the rotating speed of 500rpm for 50 min.
Example 13
A preparation method of a liquid paste-like heat insulation material comprises the following steps:
(1) corona treatment:
placing the ceramic hollow microspheres in a corona discharge instrument for corona treatment, controlling the voltage to be 11V, and taking out for later use after the corona treatment for 45 s;
(2) calcining treatment:
placing the expanded perlite in a muffle furnace for high-temperature calcination treatment, controlling the temperature to 1150 ℃, and taking out for later use after completion;
(3) ionization infiltration-ultrasonic coupling treatment:
immersing the hollow fibers into an ionization solution, pouring the hollow fibers into an electrolytic bath together to enable the ionization solution to completely immerse the hollow fibers, immersing an ultrasonic probe into a position 2.5cm below the liquid level of the ionization solution, switching on a power supply to perform ionization infiltration-ultrasonic coupling treatment, controlling the voltage to be 210V, controlling the current to be 5A, controlling the frequency of ultrasonic waves to be 45kHz, filtering out the hollow fibers after 25min treatment, washing the hollow fibers for 4 times by pure water, and drying the hollow fibers for later use, wherein the ionization solution comprises the following components in percentage by weight: 3.5% of sodium hydroxide, 2.5% of fulvic acid, 3% of ammonium hydrogen nitrate, 0.55% of silver chloride, 0.65% of copper chloride and the balance of water;
(4) bead grinding treatment:
putting the ceramic hollow microspheres subjected to corona treatment in the step (1), the expanded perlite subjected to calcination treatment in the step (2) and the hollow fibers subjected to ionization infiltration-ultrasonic coupling treatment in the step (3) into a bead mill according to the weight ratio of 7:3.5:1 for grinding, wherein the rotating speed of the bead mill is 1500rpm, and obtaining mixed powder A for later use;
(5) ultramicro crushing treatment:
taking the mixed powder A in the step (4) out of the liquid nitrogen, immediately placing the mixed powder A in an ultrafine grinder for ultrafine grinding treatment, controlling the rotating speed of the grinder to be 5000rpm, and obtaining mixed powder B for later use after finishing the ultrafine grinding treatment;
(6) stirring and uniformly mixing:
weighing 24.5 parts by weight of the mixed powder B obtained in the step (5), 75 parts by weight of liquid epoxy resin, 15 parts by weight of rosin, 8 parts by weight of soybean lecithin and 0.8 part by weight of polydimethylsiloxane, putting the mixture into a high-pressure stirring tank, raising the temperature in the stirring tank to 200 ℃, and stirring at the rotating speed of 500rpm for 50 min.
Example 14
A preparation method of a liquid paste-like heat insulation material comprises the following steps:
(1) corona treatment:
placing the ceramic hollow microspheres in a corona discharge instrument for corona treatment, controlling the voltage to be 11V, and taking out for later use after the corona treatment for 45 s;
(2) calcining treatment:
placing the expanded perlite in a muffle furnace for high-temperature calcination treatment, controlling the temperature to 1150 ℃, and taking out for later use after completion;
(3) ionization infiltration-ultrasonic coupling treatment:
immersing the hollow fibers into an ionization solution, pouring the hollow fibers into an electrolytic bath together to enable the ionization solution to completely immerse the hollow fibers, immersing an ultrasonic probe into a position 2.5cm below the liquid level of the ionization solution, switching on a power supply to perform ionization infiltration-ultrasonic coupling treatment, controlling the voltage to be 210V, controlling the current to be 5A, controlling the frequency of ultrasonic waves to be 45kHz, filtering out the hollow fibers after 25min treatment, washing the hollow fibers for 4 times by pure water, and drying the hollow fibers for later use, wherein the ionization solution comprises the following components in percentage by weight: 3.5% of sodium hydroxide, 2.5% of fulvic acid, 3% of ammonium hydrogen nitrate, 0.55% of silver chloride, 0.65% of copper chloride and the balance of water;
(4) bead grinding treatment:
putting the ceramic hollow microspheres subjected to corona treatment in the step (1), the expanded perlite subjected to calcination treatment in the step (2) and the hollow fibers subjected to ionization infiltration-ultrasonic coupling treatment in the step (3) into a bead mill according to the weight ratio of 7:3.5:1 for grinding, wherein the rotating speed of the bead mill is 1500rpm, and obtaining mixed powder A for later use;
(5) and (3) dispersion treatment:
putting the mixed powder A obtained in the step (4) and liquid epoxy resin together into a dispersion cylinder according to the weight ratio of 1:3.5, and uniformly dispersing to obtain a mixture A for later use;
(6) cryogenic treatment:
placing the mixture A obtained in the step (5) in liquid nitrogen for cryogenic treatment, and taking out immediately after 25 seconds of treatment;
(7) stirring and uniformly mixing:
weighing 24.5 parts by weight of the mixture A subjected to deep cooling treatment in the step (6), 75 parts by weight of liquid epoxy resin, 15 parts by weight of rosin, 8 parts by weight of soybean lecithin and 0.8 part by weight of polydimethylsiloxane, putting the mixture A, the rosin, the soybean lecithin and the polydimethylsiloxane into a high-pressure stirring tank together, raising the temperature in the stirring tank to 200 ℃, and stirring at the rotating speed of 500rpm for 50 min.
Control group
The application numbers are: CN201910595791.X discloses a fireproof heat-insulating material and a preparation method thereof.
In order to compare the technical effects of the present application, the thermal insulation materials are correspondingly prepared by the methods of the above examples 2 and 4 to 14, and then the thermal conductivity is measured at 25 ℃, 100 ℃, 200 ℃, 300 ℃ and 400 ℃ respectively, and the average value of the thermal conductivity of each sample is calculated, wherein the test results are shown in the following table 1:
TABLE 1 thermal conductivity W/(m) of each group of thermal insulation materials2·K)
As can be seen from the above table 1, the application provides a preparation method of the liquid paste thermal insulation material, and the steps have mutual synergistic effect, so that the finally prepared thermal insulation material has stable thermal conductivity along with the rise of temperature, small change along with the temperature, and good thermal insulation effect.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention, and the present invention is not limited to the illustrated embodiments, and all the modifications and equivalents of the embodiments may be made without departing from the spirit of the present invention.
Claims (7)
1. The preparation method of the liquid paste heat-insulating material is characterized by comprising the following steps:
(1) corona treatment:
placing the ceramic hollow microspheres in a corona discharge instrument for corona treatment, and taking out for later use after the corona treatment is finished;
(2) calcining treatment:
placing the expanded perlite in a muffle furnace for high-temperature calcination treatment, and taking out for later use after the calcination treatment is finished;
(3) ionization infiltration-ultrasonic coupling treatment:
immersing the hollow fibers into an ionization solution, pouring the hollow fibers into an electrolytic bath together to enable the ionization solution to completely immerse the hollow fibers, immersing an ultrasonic probe into a position 2-3 cm below the liquid level of the ionization solution, switching on a power supply, performing ionization infiltration-ultrasonic coupling treatment, filtering out the hollow fibers after completion, washing with pure water for 3-5 times, and drying for later use;
(4) bead grinding treatment:
putting the ceramic hollow microspheres subjected to corona treatment in the step (1), the expanded perlite subjected to calcination treatment in the step (2) and the hollow fibers subjected to ionization infiltration-ultrasonic coupling treatment in the step (3) into a bead mill according to the weight ratio of 6-8: 3-4: 1 for grinding to obtain mixed powder A for later use;
(5) and (3) dispersion treatment:
placing the mixed powder A obtained in the step (4) and liquid epoxy resin together in a dispersing cylinder according to the weight ratio of 1: 3-4, and uniformly dispersing to obtain a mixture A for later use;
(6) cryogenic treatment:
placing the mixture A obtained in the step (5) in liquid nitrogen for subzero treatment, and taking out after 20-30 s of treatment;
(7) ultramicro crushing treatment:
taking the mixture A in the step (6) out of liquid nitrogen, immediately placing the mixture A in an ultrafine grinder for ultrafine grinding treatment, and obtaining mixed powder B for later use;
(8) stirring and uniformly mixing:
weighing 23-26 parts by weight of the mixed powder B obtained in the step (7), 70-80 parts by weight of liquid epoxy resin, 13-17 parts by weight of rosin, 7-9 parts by weight of soybean lecithin and 0.7-0.9 part by weight of polydimethylsiloxane, putting the mixture into a high-pressure stirring tank, raising the temperature in the stirring tank to 180-220 ℃, and stirring at the rotating speed of 400-600 rpm for 40-60 min.
2. The method for preparing a liquid paste heat insulating material according to claim 1, wherein the control voltage for the corona treatment in step (1) is 10 to 12kV, and the time for the corona treatment is 40 to 50 s.
3. The method for preparing a liquid paste heat insulating material according to claim 1, wherein the temperature is controlled to be 1000 to 1300 ℃ during the high temperature treatment in the step (2).
4. The method for preparing the liquid paste thermal insulation material according to claim 1, wherein the ionizing solution in the step (3) comprises the following components in percentage by weight: 3-4% of sodium hydroxide, 2-3% of fulvic acid, 2-4% of ammonium hydrogen nitrate, 0.4-0.7% of silver chloride, 0.5-0.8% of copper chloride and the balance of water.
5. The method for preparing the liquid paste thermal insulation material according to claim 1, wherein the voltage is controlled to be 200-220V, the current is 4-6A, the frequency of the ultrasonic wave is 40-50 kHz, and the treatment time is 20-30 min during the ionization infiltration-ultrasonic wave coupling treatment in the step (3).
6. The method for preparing the liquid paste heat-insulating material according to claim 1, wherein the rotation speed of the bead mill is controlled to be 1000-2000 rpm during the bead milling treatment in the step (4).
7. The method for preparing a liquid paste heat insulating material according to claim 1, wherein the rotation speed of the pulverizer is controlled to 4000 to 6000rpm during the ultrafine pulverization treatment in the step (7).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114180937A (en) * | 2021-12-06 | 2022-03-15 | 安徽龙钰徽派古建工艺制品有限公司 | Easily-cleaned antibacterial antique building brick and tile |
| CN114752080A (en) * | 2022-05-16 | 2022-07-15 | 西京学院 | Preparation method and application of hydrogel with interpenetrating network structure |
| CN116283160A (en) * | 2023-05-17 | 2023-06-23 | 潍坊交安公路工程有限公司 | Preparation method of light high-strength concrete |
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2021
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114180937A (en) * | 2021-12-06 | 2022-03-15 | 安徽龙钰徽派古建工艺制品有限公司 | Easily-cleaned antibacterial antique building brick and tile |
| CN114752080A (en) * | 2022-05-16 | 2022-07-15 | 西京学院 | Preparation method and application of hydrogel with interpenetrating network structure |
| CN116283160A (en) * | 2023-05-17 | 2023-06-23 | 潍坊交安公路工程有限公司 | Preparation method of light high-strength concrete |
| CN116283160B (en) * | 2023-05-17 | 2023-09-01 | 潍坊交安公路工程有限公司 | Preparation method of light high-strength concrete |
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