CN107298879A - A kind of far infrared heating slurry and preparation method thereof - Google Patents
A kind of far infrared heating slurry and preparation method thereof Download PDFInfo
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- CN107298879A CN107298879A CN201710442300.9A CN201710442300A CN107298879A CN 107298879 A CN107298879 A CN 107298879A CN 201710442300 A CN201710442300 A CN 201710442300A CN 107298879 A CN107298879 A CN 107298879A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Inorganic Chemistry (AREA)
Abstract
The invention discloses a kind of far infrared heating slurry and preparation method thereof, in terms of mass fraction, the slurry includes：20 30 parts of graphite, 5 10 parts of nano bamboo powdered carbon, ceramic 10 20 parts of cast charge, 30 35 parts of silicate sol, TiO220 30 parts of 10 15 parts of colloidal sol, 5 10 parts of glass dust, 24 parts of dispersant, 12 parts of coupling agent, 12 parts of defoamer and water；Wherein, the preparation method of the ceramic cast charge includes：By MgO, ZrO3、Ni2O3, mica powder and the rare earth oxide ground and mixed in ball mill, then calcined, finally by the product after the calcining again in the ball mill grind, be made the ceramic cast charge；The present invention does film-forming carrier by introducing nano bamboo powdered carbon, polycarboxylic acid's ammonia salt ceramic dispersants and silicate sol and TiO 2 sol, improves the combination properties such as the electric conductivity and heat resistance of heat generating pastes.
Description
Technical field
The present invention relates to electric slurry field, more particularly, to a kind of far infrared heating slurry and preparation method thereof.
Background technology
Carbon crystal heating board is the addition far infrared transmission agent and temperature limiting agent etc. in microcrystal grain, with special process with preparing
Fabrication techniques are formed.Adopted suitable for domestic heating, office building heating, school dormitory's office building, StoreFront heating, central heating auxiliary
Warm, chess and card room, hospital, hotel, bath center, greenhouse booth thermal insulation, warehouse insulation etc..Carbon crystal heating board is used as one kind
Emerging heating product, environmental protection and health care, are promoted well in south China area, and then carbon crystal heating board generates heat
Slurry is widely studied, but current heat generating pastes have poorly conductive, too high in resistance, heat-resisting quantity difference and infrared wavelength
Uncertain the problems such as, it is therefore necessary to provide a kind of combination property good far infrared heating slurry.
The content of the invention
It is an object of the invention to provide a kind of far infrared heating slurry, problem present in existing heat generating pastes is solved, is carried
For a kind of good heat generating pastes of combination property.
To achieve these goals, a kind of far infrared heating slurry is provided according to an aspect of the present invention, with mass fraction
Meter, the slurry includes：20-30 parts of graphite, 5-10 parts of nano bamboo powdered carbon, ceramic 10-20 parts of cast charge, silicate sol 30-35
Part, TiO210-15 parts of colloidal sol, 5-10 parts of glass dust, 2-4 parts of dispersant, 1-2 parts of coupling agent, 1-2 parts of defoamer and water 20-30
Part；
Wherein, the preparation method of the ceramic cast charge includes：By MgO, ZrO3、Ni2O3, mica powder and rare earth oxide
The ground and mixed in ball mill, is then calcined, and finally grinds the product after the calcining in the ball mill again,
The ceramic cast charge is made.
A kind of preparation method of described heat generating pastes is provided according to another aspect of the present invention, and the preparation method includes：
(1) glass dust and coupling agent stirring are mixed, graphite, nano bamboo powdered carbon, ceramics is then added under agitation
Cast charge and dispersant are mixed；
(2) first by silicate sol, TiO2Colloidal sol and water are well mixed, under agitation, add the mixing of step (1)
Material and defoamer, are mixed afterwards.
Technical scheme has the following advantages that：
(1) present invention, using the cooperation of nano bamboo powdered carbon and graphite, improves heat generating pastes by introducing nano bamboo powdered carbon
Electric conductivity；
(2) present invention improves the dispersiveness of powder, and then improve by introducing polycarboxylic acid's ammonia salt ceramic dispersants
The electric conductivity of heat generating pastes；
(3) by adding ceramic cast charge composition so that the far infrared transmissivity of heat generating pastes reaches more than 84%；
(4) heat resistance that film-forming carrier improves heat generating pastes is done by introducing silicate sol and TiO 2 sol.
Other features and advantages of the present invention will be described in detail in subsequent embodiment part.
Embodiment
The preferred embodiment of the present invention is described in more detail below.Although the following describing being preferable to carry out for the present invention
Mode, however, it is to be appreciated that may be realized in various forms the present invention without that should be limited by embodiments set forth herein.Phase
Instead there is provided these embodiments be in order that the present invention is more thorough and complete, and can be by the scope of the present invention intactly
Convey to those skilled in the art.
A kind of far infrared heating slurry is provided according to an aspect of the present invention, and in terms of mass fraction, the slurry includes：Graphite
20-30 parts, 5-10 parts of nano bamboo powdered carbon, ceramic 10-20 parts of cast charge, 30-35 parts of silicate sol, TiO210-15 parts of colloidal sol,
20-30 parts of 5-10 parts of glass dust, 2-4 parts of dispersant, 1-2 parts of coupling agent, 1-2 parts of defoamer and water；
Wherein, the preparation method of the ceramic cast charge includes：By MgO, ZrO3、Ni2O3, mica powder and rare earth oxide
The ground and mixed in ball mill, is then calcined, and finally grinds the product after the calcining in the ball mill again,
The ceramic cast charge is made.
Preferably, the average grain diameter of the nano bamboo powdered carbon is 9000-12500 mesh.
Preferably, the defoamer can be silicone emulsion, polyoxyethylene polyoxypropylene pentaerythrite ether, polyoxy
In ethene polyoxy propyl alcohol amidogen ether, polypropylene glycerol aether and polyoxyethylene polyoxypropylene glycerin ether, dimethyl silicone polymer extremely
Few one kind.
In accordance with the present invention it is preferred that, in terms of mass fraction, the ceramic cast charge includes：5-10 parts of MgO, ZrO3 3-5
Part, Ni2O31-2 parts of 3-5 parts, 2-3 parts of mica powder and rare earth oxide.
In accordance with the present invention it is preferred that, the temperature of the calcining is 1000-1500 DEG C, and the time is 2-3 hours.
In accordance with the present invention it is preferred that, the rare earth oxide is praseodymium oxide and/or lanthana.
Preferably, the rare earth oxide is the mixture of lanthana and praseodymium oxide, the lanthana and described
The mass ratio of praseodymium oxide is 1:0.5-1.5.
In accordance with the present invention it is preferred that, the average grain diameter of the graphite is 9000-12500 mesh, the ceramic cast charge it is flat
Equal particle diameter is 400-500 mesh.
In accordance with the present invention it is preferred that, the glass dust is glass powder with low melting point, and melting temperature is 390-780 DEG C.It is described low
The addition of melting glass frit, can be very good to provide anti-flammability, insulating properties and the resistance to scraping of far infrared heating slurry.
In accordance with the present invention it is preferred that, the dispersant is polycarboxylic acid's ammonia salt ceramic dispersants.
By selecting polycarboxylic acid's ammonia salt ceramic dispersants, the dispersiveness of powder is improved, and then improve heat generating pastes
Electric conductivity；
In accordance with the present invention it is preferred that, the coupling agent is silane coupler.
By selecting silane coupler, the compatibility between glass powder with low melting point and other components is not only improved, while
The compatibility between each component can be made more preferable.
Preferably, present invention each component used can be by commercially available.
A kind of preparation method according to heat generating pastes is provided according to another aspect of the present invention, and the preparation method includes：
(1) glass dust and coupling agent stirring are mixed, graphite, nano bamboo powdered carbon, ceramics is then added under agitation
Cast charge and dispersant are mixed；
(2) first by silicate sol, TiO2Colloidal sol and water are well mixed, under agitation, add the mixing of step (1)
Material and defoamer, are mixed afterwards.
In accordance with the present invention it is preferred that, the mixing speed of the step (1) is 550-650 revs/min, and whipping temp is room
Temperature；The mixing speed of the step (2) is 600-700 revs/min, and whipping temp is 60-80 DEG C.
The present invention is further illustrated by the following examples.
Polycarboxylic acid's ammonia salt ceramic dispersants used in following examples are purchased from Weifang Heng Hai Chemical Co., Ltd.s, model
Dispersant9327。
Embodiment 1
The present invention provides a kind of far infrared heating slurry, and in terms of mass fraction, the slurry includes：20 parts of graphite, nano bamboo
5 parts of powdered carbon, ceramic 10 parts of cast charge, 30 parts of silicate sol, TiO210 parts of colloidal sol, 5 parts of glass powder with low melting point, polycarboxylic acid's ammonia
20 parts of 2 parts of salt ceramic dispersants, 1 part of silane coupler, 1 part of defoamer and water, the defoamer are silicone emulsion；Wherein, institute
Stating the preparation method of ceramic cast charge includes：By MgO, ZrO3、Ni2O3, mica powder and rare earth oxide grind mixed in ball mill
Close, then calcined, finally grind the product after the calcining in the ball mill again, the ceramics transmitting is made
Agent；The temperature of the high-temperature calcination is 1300 DEG C, and the time is 2.5 hours.In terms of mass fraction, the ceramic cast charge includes：
5 parts of MgO, ZrO33 parts, Ni2O31 part of 3 parts, 2 parts of mica powder and rare earth oxide, the rare earth oxide are lanthana and oxygen
The mass ratio of the mixture of change praseodymium, the lanthana and the praseodymium oxide is 1:1.
The preparation method of the far infrared heating slurry of the present embodiment is that (1) mixes glass dust and coupling agent stirring, then
Graphite, nano bamboo powdered carbon, ceramic cast charge and dispersant is added under agitation to be mixed；
(2) first by silicate sol, TiO2Colloidal sol and water are well mixed, under agitation, add the mixing of step (1)
Material and defoamer, are mixed afterwards；Wherein, the mixing speed of the step (1) is 600 revs/min, and whipping temp is room
Temperature；The mixing speed of the step (2) is 650 revs/min, and whipping temp is 70 DEG C.
Embodiment 2
The present invention provides a kind of far infrared heating slurry, and in terms of mass fraction, the slurry includes：25 parts of graphite, nano bamboo
8 parts of powdered carbon, ceramic 15 parts of cast charge, 33 parts of silicate sol, TiO213 parts of colloidal sol, 8 parts of glass powder with low melting point, polycarboxylic acid's ammonia
25 parts of 3 parts of salt ceramic dispersants, 1.5 parts of silane coupler, 1.5 parts of defoamer and water, the defoamer are silicone emulsion；Its
In, the preparation method of the ceramic cast charge includes：By MgO, ZrO3、Ni2O3, mica powder and rare earth oxide be in ball mill
Ground and mixed, then carries out high-temperature calcination, finally grinds the product after the high-temperature calcination in the ball mill again, system
Obtain the ceramic cast charge；The temperature of the high-temperature calcination is 1300 DEG C, and the time is 2.5 hours.In terms of mass fraction, the pottery
Porcelain cast charge includes：8 parts of MgO, ZrO34 parts, Ni2O31.5 parts of 4 parts, 2.5 parts of mica powder and rare earth oxide, the rare earth
Oxide is the mixture of lanthana and praseodymium oxide, and the mass ratio of the lanthana and the praseodymium oxide is 1:1.
The preparation method be the same as Example 1 of the far infrared heating slurry of the present embodiment.
Embodiment 3
The present invention provides a kind of far infrared heating slurry, and in terms of mass fraction, the slurry includes：30 parts of graphite, nano bamboo
10 parts of powdered carbon, ceramic 20 parts of cast charge, 35 parts of silicate sol, TiO215 parts of colloidal sol, 10 parts of glass powder with low melting point, polycarboxylic acid
30 parts of 4 parts of ammonia salt ceramic dispersants, 2 parts of silane coupler, 2 parts of defoamer and water, the defoamer are silicone emulsion；Wherein,
The preparation method of the ceramic cast charge includes：By MgO, ZrO3、Ni2O3, mica powder and rare earth oxide grind in ball mill
Mixing, then carries out high-temperature calcination, finally grinds the product after the high-temperature calcination in the ball mill again, institute is made
State ceramic cast charge；The temperature of the high-temperature calcination is 1300 DEG C, and the time is 2.5 hours.In terms of mass fraction, the ceramics hair
Penetrating agent includes：10 parts of MgO, ZrO35 parts, Ni2O32 parts of 5 parts, 3 parts of mica powder and rare earth oxide, the rare earth oxide is
The mass ratio of the mixture of lanthana and praseodymium oxide, the lanthana and the praseodymium oxide is 1:1.
The preparation method be the same as Example 1 of the far infrared heating slurry of the present embodiment.
Embodiment 4
The present embodiment is distinguished as the rare earth oxide for lanthana, other each components and consumption and system with embodiment 1
Preparation Method is same as Example 1.
Embodiment 5
The present embodiment is distinguished as the rare earth oxide for praseodymium oxide, other each components and consumption and system with embodiment 1
Preparation Method is same as Example 1.
Comparative example 1
Being distinguished as in component of the far infrared heating slurry of comparative example 1 and embodiment 1 does not add nano bamboo powdered carbon, and graphite is
25 parts, other each components and consumption and preparation method are same as Example 1.
Comparative example 2
Being distinguished as in component of the far infrared heating slurry of comparative example 2 and embodiment 1 does not add polycarboxylic acid's ammonia salt ceramics
Dispersant, dispersant used be polyvinylpyrrolidone, 2 parts of consumption, other each components and consumption and preparation method with implementation
Example 1 is identical.
Comparative example 3
The far infrared heating slurry of comparative example 3 is distinguished as ceramic cast charge for 10 parts of MgO with embodiment 1, other each groups
Point and consumption and preparation method it is same as Example 1.
Test case 1
The heat generating pastes of embodiment 1- embodiments 5 and comparative example 1- comparative examples 2 are coated on to the epoxy plate for being pasted with copper sheet
On, wherein, copper sheet is contacted with heat generating pastes, and coating zone is 4cm × 6cm rectangular region, and thickness is 3mm, is then placed in
Dried, taken out after 20 minutes in 120 DEG C of baking oven, the resistance value of each heat generating pastes, test result are tested after room temperature cooling
Such as table 1；
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Comparative example 1 | Comparative example 2 | |
| Resistance, Ω | 503 | 495 | 487 | 500 | 505 | 553 | 523 |
By test result, the present invention is by adding nano bamboo powdered carbon, using the cooperation of nano bamboo powdered carbon and graphite,
Improve the electric conductivity of heat generating pastes；By introducing polycarboxylic acid's ammonia salt ceramic dispersants, the dispersiveness of powder is improved, and then
Improve the electric conductivity of heat generating pastes.
Test case 2
The heat generating pastes of embodiment 1- embodiments 5 and comparative example 3 are coated into one piece of area on epoxy plate and thickness is homogeneous
Dried in same rectangular region, the baking oven for being then placed in 120 DEG C, take out within 20 minutes, normal direction light is carried out after natural cooling
The test of emissivity is composed, by test, embodiment 1- embodiments 3 are in 8-15 microns of wavelength band, and Normal Luminous Intensity compares spoke
Penetrate rate and reach more than 87%, embodiment 4- embodiments 5 are in 8-15 microns of wavelength band, and normal spectral emissivity reaches
To 84%, and comparative example 3 is in 8-15 microns of wavelength band, and normal spectral emissivity is less than 80%.
By test result, the present invention is by adding ceramic cast charge composition so that the far infrared of heat generating pastes
Emissivity reaches more than 84%.
It is described above various embodiments of the present invention, described above is exemplary, and non-exclusive, and
It is not limited to disclosed each embodiment.In the case of without departing from the scope and spirit of illustrated each embodiment, for this skill
Many modifications and changes will be apparent from for the those of ordinary skill in art field.
Claims (10)
1. a kind of far infrared heating slurry, it is characterised in that in terms of mass fraction, the slurry includes：20-30 parts of graphite, nanometer
5-10 parts of bamboo charcoal powder, ceramic 10-20 parts of cast charge, 30-35 parts of silicate sol, TiO210-15 parts of colloidal sol, glass dust 5-10
Part, 2-4 parts of dispersant, 1-2 parts of coupling agent, 1-2 parts of defoamer and 20-30 parts of water；
Wherein, the preparation method of the ceramic cast charge includes：By MgO, ZrO3、Ni2O3, mica powder and rare earth oxide be in ball
Ground and mixed in grinding machine, is then calcined, and is finally ground the product after the calcining in the ball mill again, is made
The ceramic cast charge.
2. far infrared heating slurry according to claim 1, wherein, in terms of mass fraction, the ceramic cast charge includes：
5-10 parts of MgO, ZrO33-5 parts, Ni2O31-2 parts of 3-5 parts, 2-3 parts of mica powder and rare earth oxide.
3. far infrared heating slurry according to claim 1, wherein, the temperature of the calcining is 1000-1500 DEG C, time
For 2-3 hours.
4. far infrared heating slurry according to claim 1, wherein, the rare earth oxide is praseodymium oxide and/or oxidation
Lanthanum.
5. far infrared heating slurry according to claim 1, wherein, the average grain diameter of the graphite is 9000-12500
Mesh, the average grain diameter of the ceramic cast charge is 400-500 mesh.
6. far infrared heating slurry according to claim 1, wherein, the glass dust is glass powder with low melting point, melting temperature
Spend for 390-780 DEG C.
7. far infrared heating slurry according to claim 1, wherein, the dispersant is that polycarboxylic acid's ammonia salt ceramics are scattered
Agent.
8. far infrared heating slurry according to claim 1, wherein, the coupling agent is silane coupler.
9. a kind of preparation method of the far infrared heating slurry in 1-8 according to claim described in any one, it is characterised in that
The preparation method includes：
(1) glass dust and coupling agent stirring are mixed, graphite, nano bamboo powdered carbon, ceramics transmitting is then added under agitation
Agent and dispersant are mixed；
(2) first by silicate sol, TiO2Colloidal sol and water are well mixed, under agitation, add thing after the mixing of step (1)
Material and defoamer, are mixed.
10. preparation method according to claim 9, wherein, the mixing speed of the step (1) is 550-650 revs/min
Clock, whipping temp is room temperature；The mixing speed of the step (2) is 600-700 revs/min, and whipping temp is 60-80 DEG C.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108003701A (en) * | 2017-12-16 | 2018-05-08 | 深圳埃法智能科技有限公司 | A kind of far infrared heat conduction slurry and its preparation method and application |
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| CN1106850A (en) * | 1994-09-20 | 1995-08-16 | 华中理工大学 | Electrothermal paint |
| CN1133867A (en) * | 1996-02-17 | 1996-10-23 | 朱为方 | Far infrared heating baked paint |
| CN105802313A (en) * | 2014-12-29 | 2016-07-27 | 张仁鸿 | Paint for eliminating and transforming electromagnetic wave into far infrared rays |
| CN106634063A (en) * | 2015-07-24 | 2017-05-10 | 广东骏丰频谱股份有限公司 | High-temperature-tolerance far-infrared coating as well as preparation method and application thereof |
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2017
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1076942A (en) * | 1992-03-14 | 1993-10-06 | 南京航空学院 | High-emissivity ceramic paint |
| CN1106850A (en) * | 1994-09-20 | 1995-08-16 | 华中理工大学 | Electrothermal paint |
| CN1133867A (en) * | 1996-02-17 | 1996-10-23 | 朱为方 | Far infrared heating baked paint |
| CN105802313A (en) * | 2014-12-29 | 2016-07-27 | 张仁鸿 | Paint for eliminating and transforming electromagnetic wave into far infrared rays |
| CN106634063A (en) * | 2015-07-24 | 2017-05-10 | 广东骏丰频谱股份有限公司 | High-temperature-tolerance far-infrared coating as well as preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108003701A (en) * | 2017-12-16 | 2018-05-08 | 深圳埃法智能科技有限公司 | A kind of far infrared heat conduction slurry and its preparation method and application |
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