CN110330949A - A kind of low temperature resistant thermal conducting agent and its preparation method and application - Google Patents
A kind of low temperature resistant thermal conducting agent and its preparation method and application Download PDFInfo
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- CN110330949A CN110330949A CN201910693018.7A CN201910693018A CN110330949A CN 110330949 A CN110330949 A CN 110330949A CN 201910693018 A CN201910693018 A CN 201910693018A CN 110330949 A CN110330949 A CN 110330949A
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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
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
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Abstract
The present invention relates to a kind of low temperature resistant thermal conducting agents and preparation method thereof, belong to heat transfer technical field, the low temperature resistant thermal conducting agent, according to parts by weight, the thermal conducting agent include following component: 22-44 parts of ethylene glycol, 27.7-55.4 parts of propylene glycol, 0.08-0.16 parts of benzoate, 0.2-0.4 parts of boric acid, 0.3-0.6 parts of borax, 0.02-0.1 parts of benzotriazole, 0-49.7 parts of deionized water；With being 7-8 (partial neutral) in pH value, i.e., corrosion is not generated to heat transfer tube body, heating conduction and high temperature resistance are excellent, while can be low temperature resistant to -50 DEG C.
Description
Technical field
The invention belongs to heat transfer technical fields, and in particular to a kind of low temperature resistant thermal conducting agent and its preparation method and application.
Background technique
Thermal conducting agent plays gain of heat conduction as conduction material, currently, for extremely frigid zones heat supply, the corrosion of pipeline
It with calandria fouling, seriously affects heating effect and increases heat cost, therefore, need a kind of low temperature resistant thermal conducting agent, enhance low
Heating efficiency under warm environment.
Summary of the invention
In view of the above problems, it proposes on the present invention overcomes the above problem or at least be partially solved in order to provide one kind
State the low temperature resistant thermal conducting agent and its preparation method and application of problem.
The embodiment of the present invention provides a kind of low temperature resistant thermal conducting agent, and according to parts by weight, the thermal conducting agent includes following component:
22-44 parts of ethylene glycol, 27.7-55.4 parts of propylene glycol, 0.08 part of benzoate, 0.2 part of boric acid, 0.3 part of borax, benzotriazole
0.02 part, 0-49.7 parts of deionized water.
Further, the ethylene glycol is terylene grade ethylene glycol, and it is 99.9% that the terylene grade ethylene glycol, which is weight concentration,
Ethylene glycol.
Further, the benzoate is sodium benzoate.
Further, the thermal conducting agent pH value is 7-8.
Further, the PH regulator is sodium hydroxide or phosphoric acid.
Further, according to parts by weight, the thermal conducting agent also comprises the following components: 0.005 part of water-soluble dye.
Further, which comprises
Propylene glycol is divided into two parts, a copy of it propylene glycol is taken to be heated to 50-60 DEG C, to the heating after in propylene glycol plus
Enter benzoate, boric acid, borax and benzotriazole, heat and stir to dissolution completely, obtains mixed liquor；
Filter the mixed liquor, to the filtering after ethylene glycol and another propylene glycol are added in mixed liquor, stir evenly,
PH value is adjusted to 7-8, obtains low temperature resistant thermal conducting agent；
The weight ratio of a copy of it propylene glycol and another propylene glycol is 6-10: 90-94.
Further, in the filtering mixed liquor, the filtered 150-200 mesh filter screen, the strainer number of plies is
1-3。
Based on the same inventive concept, the embodiment of the present invention also provides a kind of application of low temperature resistant thermal conducting agent, is applied to as follows
One of: electric boiler, electromagnetic heater, air-conditioning heating system.
One or more technical solutions in the embodiment of the present invention, have at least the following technical effects or advantages:
Low temperature resistant thermal conducting agent provided in an embodiment of the present invention, according to parts by weight, the thermal conducting agent include following component: second
22-44 parts of glycol, 27.7-55.4 parts of propylene glycol, 0.08 part of benzoate, 0.2 part of boric acid, 0.3 part of borax, benzotriazole
0.02 part；Tasteless for transparent whites liquid, liquid stabilising is not easy to evaporate, and liquid is used in heat supply pipeline, can be high and cold
Regional outdoor application, does not freeze, and prevents influence of the low temperature to pipeline, while thermal conducting agent ph value is neutrality, will not corrosion pipeline
And calandria, it will not be because of heated generation scale formation；The thermal conducting agent boiling point is high, will not lead because of heating in thermal histories
Liquid boiling is caused, and is influenced for thermally safe.
Specific embodiment
Below in conjunction with specific embodiment and embodiment, it is specifically described the present invention, advantages of the present invention and various effects
It thus will clearly present.It will be understood by those skilled in the art that these specific embodiments and embodiment are for illustrating
The present invention is not intended to limit the present invention.
Throughout the specification, unless otherwise specified, terms used herein are interpreted as usual in this field
Used meaning.Therefore, unless otherwise defined, all technical and scientific terms used herein has leads with belonging to the present invention
The identical meaning of the general understanding of field technique personnel.Contradiction if it exists, this specification are preferential.
Unless otherwise specified, various raw material, reagent, the instrument and equipment etc. used in the present invention, can pass through
Market is commercially available or can be prepared by existing method.
It is described in detail below in conjunction with low temperature resistant thermal conducting agent of the specific embodiment to the application.
Embodiment 1
Low temperature resistant thermal conducting agent provided in this embodiment, according to parts by weight, the thermal conducting agent include following component: ethylene glycol
24.2 parts, 30.47 parts of propylene glycol, 0.08 part of sodium benzoate, 0.2 part of boric acid, 0.3 part of borax, 0.02 part of benzotriazole, go from
44.73 parts of sub- water.
In the present embodiment, low temperature resistant thermal conducting agent the preparation method is as follows:
Propylene glycol is divided into two parts, a copy of it propylene glycol is taken to be heated to 60 DEG C, to the heating after be added in propylene glycol
Benzoate, boric acid, borax and benzotriazole heat and stir to dissolution completely, obtain mixed liquor；
By mixed liquor described in 180 mesh, 3 layers of strainer filtering, to the filtering after ethylene glycol, deionization are added in mixed liquor
Water and another propylene glycol, stir evenly, and adjust pH value to 7.5, obtain low temperature resistant thermal conducting agent；
The weight ratio of a copy of it propylene glycol and another propylene glycol is 1: 9.
Embodiment 2
Low temperature resistant thermal conducting agent provided in this embodiment, according to parts by weight, the thermal conducting agent include following component: ethylene glycol
22 parts, 27.7 parts of propylene glycol, 0.08 part of sodium benzoate, 0.2 part of boric acid, 0.3 part of borax, 0.02 part of benzotriazole, deionization
49.7 parts of water.
In the present embodiment, low temperature resistant thermal conducting agent the preparation method is as follows:
Propylene glycol is divided into two parts, a copy of it propylene glycol is taken to be heated to 50 DEG C, to the heating after be added in propylene glycol
Benzoate, boric acid, borax and benzotriazole heat and stir to dissolution completely, obtain mixed liquor；
By mixed liquor described in 150 mesh, 1 layer of strainer filtering, to the filtering after ethylene glycol, deionization are added in mixed liquor
Water and another propylene glycol, stir evenly, and adjust pH value to 7, obtain low temperature resistant thermal conducting agent；
The weight ratio of a copy of it propylene glycol and another propylene glycol is 3: 45.
Embodiment 3
Low temperature resistant thermal conducting agent provided in this embodiment, according to parts by weight, the thermal conducting agent include following component: ethylene glycol
44 parts, 36 parts of propylene glycol, 0.16 part of sodium benzoate, 0.4 part of boric acid, 0.6 part of borax, 0.1 part of benzotriazole, deionized water
18.14 parts.
In the present embodiment, low temperature resistant thermal conducting agent the preparation method is as follows:
Propylene glycol is divided into two parts, a copy of it propylene glycol is taken to be heated to 60 DEG C, to the heating after be added in propylene glycol
Benzoate, boric acid, borax and benzotriazole heat and stir to dissolution completely, obtain mixed liquor；
By mixed liquor described in 200 mesh, 3 layers of strainer filtering, to the filtering after ethylene glycol, deionization are added in mixed liquor
Water and another propylene glycol, stir evenly, and adjust pH value to 8, obtain low temperature resistant thermal conducting agent；
The weight ratio of a copy of it propylene glycol and another propylene glycol is 1: 9.
Embodiment 4
Low temperature resistant thermal conducting agent provided in this embodiment, according to parts by weight, the thermal conducting agent include following component: ethylene glycol
44 parts, 55.4 parts of propylene glycol, 0.08 part of sodium benzoate, 0.2 part of boric acid, 0.3 part of borax, 0.002 part of benzotriazole.
In the present embodiment, low temperature resistant thermal conducting agent the preparation method is as follows:
Propylene glycol is divided into two parts, a copy of it propylene glycol is taken to be heated to 55 DEG C, to the heating after be added in propylene glycol
Benzoate, boric acid, borax and benzotriazole heat and stir to dissolution completely, obtain mixed liquor；
By mixed liquor described in 200 mesh, 2 layers of strainer filtering, to the filtering after ethylene glycol and another are added in mixed liquor
Propylene glycol stirs evenly, and adjusts pH value to 7.5, obtains low temperature resistant thermal conducting agent；
The weight ratio of a copy of it propylene glycol and another propylene glycol is 10: 94.
Embodiment 5
Low temperature resistant thermal conducting agent provided in this embodiment, according to parts by weight, the thermal conducting agent include following component: ethylene glycol
It 24.2 parts, 30.47 parts of propylene glycol, 0.08 part of sodium benzoate, 0.2 part of boric acid, 0.3 part of borax, 0.002 part of benzotriazole, goes
44.73 parts of ionized water, 0.005 part of water-soluble dye.
In the present embodiment, low temperature resistant thermal conducting agent the preparation method is as follows:
Deionized water is divided into two parts, a copy of it deionized water is taken to be heated to 55 DEG C, to the heating after deionized water
Middle addition benzoate, boric acid, borax and benzotriazole heat and stir to dissolution completely, obtain mixed liquor；
By mixed liquor described in 200 mesh, 2 layers of strainer filtering, to the filtering after ethylene glycol, propylene glycol are added in mixed liquor
It with another deionized water, stirs evenly, water-soluble dye is added, stirring, filtering adjust pH value to 7.5, obtain low temperature resistant lead
Thermit powder；
The weight ratio of a copy of it deionized water and another deionized water is 1: 9.
Embodiment 6
The present embodiment provides the application of above-mentioned low temperature resistant thermal conducting agent, be applied to one of following: electric boiler, electromagnetic heater,
Air-conditioning heating system.
The freezing point of low temperature resistant thermal conducting agent, boiling point and heating conduction made from embodiment 1-3 are detected, testing result is such as
It declines shown in 1.Wherein, heating conduction test is standard atmospheric pressure in the lab, under 22 DEG C of environment, while to water and thermal conducting agent
It is heated, is obtained using standard thermometer.
Table 1
| Freezing point/DEG C | Boiling point/DEG C | Heating conduction | |
| Embodiment 1 | -50 | 113 | Higher than 6.9 DEG C of water |
| Embodiment 2 | -33.8 | 107 | Higher than 6.4 DEG C of water |
| Embodiment 3 | -47 | 121 | Higher than 7.6 DEG C of water |
| Embodiment 4 | -20 | 160 | Higher than 8 DEG C of water |
| Embodiment 5 | -50 | 113 | Higher than 6.9 DEG C of water |
Compared with prior art, the low temperature resistant thermal conducting agent of the application has the following characteristics that
It is 7-8 (partial neutral) in pH value, i.e., corrosion is not generated to heat transfer tube body, heating conduction and high temperature resistance are excellent,
It simultaneously can be low temperature resistant to -50 DEG C.
Finally, it is to be noted that, the terms "include", "comprise" or its any other variant be intended to it is non-exclusive
Property include so that include a series of elements process, method, article or equipment not only include those elements, but also
Further include other elements that are not explicitly listed, or further include for this process, method, article or equipment it is intrinsic
Element.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (9)
1. a kind of low temperature resistant thermal conducting agent, which is characterized in that according to parts by weight, the thermal conducting agent includes following component: ethylene glycol
22-44 parts, 27.7-55.4 parts of propylene glycol, 0.08-0.16 parts of benzoate, 0.2-0.4 parts of boric acid, 0.3-0.6 parts of borax, benzene
And 0.02-0.1 parts of triazole, 0-49.7 parts of deionized water.
2. a kind of low temperature resistant thermal conducting agent according to claim 1, which is characterized in that the ethylene glycol is terylene grade second two
Alcohol.
3. a kind of low temperature resistant thermal conducting agent according to claim 1, which is characterized in that the benzoate is sodium benzoate.
4. a kind of low temperature resistant thermal conducting agent according to claim 1, which is characterized in that the thermal conducting agent pH value is 7-8.
5. a kind of low temperature resistant thermal conducting agent according to claim 4, which is characterized in that the PH regulator be sodium hydroxide or
Phosphoric acid.
6. a kind of low temperature resistant thermal conducting agent according to claim 1, which is characterized in that according to parts by weight, the thermal conducting agent
It also comprises the following components: 0.005-0.01 parts of water-soluble dye.
7. a kind of preparation method of low temperature resistant thermal conducting agent as claimed in any one of claims 1 to 6, which is characterized in that the method
Include:
Propylene glycol is divided into two parts, a copy of it propylene glycol is taken to be heated to 50-60 DEG C, to the heating after benzene is added in propylene glycol
Formates, boric acid, borax and benzotriazole heat and stir to dissolution completely, obtain mixed liquor；
Filter the mixed liquor, to the filtering after ethylene glycol and another propylene glycol are added in mixed liquor, stir evenly, adjust
PH value obtains low temperature resistant thermal conducting agent to 7-8；
The weight ratio of a copy of it propylene glycol and another propylene glycol is 6-10: 90-94.
8. the preparation method of low temperature resistant thermal conducting agent according to claim 7, which is characterized in that the filtering mixed liquor
In, the filtered 150-200 mesh filter screen, the strainer number of plies is 1-3.
9. a kind of application of low temperature resistant thermal conducting agent as claimed in any one of claims 1 to 6, which is characterized in that be applied to it is following it
One: electric boiler, electromagnetic heater, air-conditioning heating system.
Priority Applications (1)
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