CN113292870A - Processing technology of nanoscale insulating carbon black - Google Patents
Processing technology of nanoscale insulating carbon black Download PDFInfo
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- CN113292870A CN113292870A CN202110601481.1A CN202110601481A CN113292870A CN 113292870 A CN113292870 A CN 113292870A CN 202110601481 A CN202110601481 A CN 202110601481A CN 113292870 A CN113292870 A CN 113292870A
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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
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/44—Carbon
- C09C1/48—Carbon black
- C09C1/56—Treatment of carbon black ; Purification
- C09C1/565—Treatment of carbon black ; Purification comprising an oxidative treatment with oxygen, ozone or oxygenated compounds, e.g. when such treatment occurs in a region of the furnace next to the carbon black generating reaction zone
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Abstract
The invention discloses a processing technology of nano-scale insulating carbon black, which relates to the field of carbon black processing and comprises the processing steps of filtering and screening, material selection and detection, peracid soaking, raw material taking out and drying. According to the processing technology of the nanoscale insulating carbon black, the carbon black with the average particle size of 16-20 nm and the oil absorption value of 60-80% is selected, the carbon black is soaked in a 5% nitric acid solution for several hours, so that the carbon black is fully oxidized in all aspects by oxygen molecules, and finally, after drying, the carbon black is completely coated by the oxygen molecules, so that the resistivity of the carbon black molecules is greatly improved, and the insulativity of the carbon black molecules is effectively improved.
Description
The technical field is as follows:
the invention relates to the field of carbon black processing, in particular to a processing technology of nano-scale insulating carbon black.
Background art:
carbon black, which is an amorphous carbon. Light, loose and extremely fine black powder, carbon black itself is a conductor, but in some industries, black paint is required and has certain insulation, for example, a mobile phone panel, a numerical control panel, and the like. At present, the existing processed nano-scale insulating carbon black has poor insulativity and cannot meet the market demand of the current society.
The invention content is as follows:
in order to solve the problems in the background art, the invention provides a processing technology of nano-scale insulating carbon black.
The technical problem to be solved by the invention is realized by adopting the following technical scheme: a process for preparing nm-class insulating carbon black includes such steps as filtering, screening, selecting raw materials, immersing in peracid, taking out raw materials and drying.
The specific processing steps are as follows:
s1, filtering and screening: selecting carbon black for screening, and screening out the carbon black with the average particle size of 16nm-20 nm;
s2, selecting and detecting: detecting the oil absorption value of the carbon black, and selecting the carbon black with the oil absorption value of 60ml/100g-80ml/100 g;
s3, peracid soaking: placing the carbon black with the oil absorption value of 60ml/100g-80ml/100g in 5% nitric acid solution for soaking for 3 h;
s4, taking out raw materials: taking out the carbon black soaked by the peracid, and placing the carbon black in a water control tank for airing;
s5, drying: and (3) drying and processing the carbon black subjected to water control and air drying by using drying equipment, so that the carbon black is comprehensively coated by oxygen molecules.
The processing technology of the insulating carbon black further comprises drying equipment, wherein the drying equipment comprises a box body, an air pipe, a drying fan, a first slide way, a second slide way, a pipeline, a shunting slide way, a movable box body, a stirring rod, a stirring blade, a clamping block, a motor, a base, a feeding hopper, a handle and a clamping groove;
a first slide way is fixedly connected to the upper part inside the box body, a second slide way is arranged below one end of the first slide way and is fixedly connected with the box body, a pipeline is fixedly connected to one end of the second slide way, and shunting slide ways are fixedly connected to the left side and the right side below the pipeline;
a movable box body is clamped below the inner part of the box body, the inner part of the movable box body is rotatably connected with a stirring rod, the outer wall of the stirring rod is fixedly connected with a stirring blade, one end of the stirring rod is provided with a motor, and the motor is fixedly connected with the box body through a connecting seat;
the left and right sides fixedly connected with tuber pipe of box, the inside fixedly connected with drying fan of tuber pipe.
Preferably, the outer wall of one end of the stirring rod is fixedly connected with a clamping block;
a clamping groove is formed in the rotating shaft of the motor;
the clamping block is clamped in the clamping groove.
Preferably, one end of the movable box body is fixedly connected with a handle.
Preferably, the top fixedly connected with feeder hopper of box, and bottom fixedly connected with base.
Compared with the prior art, the invention has the beneficial effects that: according to the processing technology of the nanoscale insulating carbon black, the carbon black with the average particle size of 16-20 nm and the oil absorption value of 60-80% is selected, the carbon black is soaked in a 5% nitric acid solution for several hours, so that the carbon black is fully oxidized in all aspects by oxygen molecules, and finally, after drying, the carbon black is completely coated by the oxygen molecules, so that the resistivity of the carbon black molecules is greatly improved, and the insulativity of the carbon black molecules is effectively improved. And, through drying equipment's setting, can carry out two segmentation drying with carbon black, the effectual drying efficiency who improves carbon black, compare with current drying equipment one-segment type air-dry, this drying equipment still can take off at will the removal box body, conveniently gets the excellent characteristics of material.
Description of the drawings:
in order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts;
FIG. 1 is a schematic sectional front view of a drying apparatus;
FIG. 2 is a schematic diagram of a right side view of the pipeline and the diversion chute;
FIG. 3 is a left side view of the motor rotating shaft;
wherein: 1. a box body; 2. an air duct; 3. a drying fan; 4. a first slideway; 5. a second slideway; 6. a pipeline; 7. a diversion chute; 8. moving the box body; 9. a stirring rod; 10. stirring the page; 11. a clamping block; 12. a motor; 13. a base; 14. a feed hopper; 15. a handle; 16. a clamping groove.
The specific implementation mode is as follows:
in order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
Example 1:
a process for preparing nm-class insulating carbon black includes such steps as filtering, screening, selecting raw materials, immersing in peracid, taking out raw materials and drying.
The specific processing steps are as follows:
s1, filtering and screening: selecting carbon black for screening, and screening out the carbon black with the average particle size of 16nm-20 nm;
s2, selecting and detecting: detecting the oil absorption value of the carbon black, and selecting the carbon black with the oil absorption value of 60ml/100g-80ml/100 g;
s3, peracid soaking: placing the carbon black with the oil absorption value of 60ml/100g-80ml/100g in 5% nitric acid solution for soaking for 3 h;
s4, taking out raw materials: taking out the carbon black soaked by the peracid, and placing the carbon black in a water control tank for airing;
s5, drying: and (3) drying and processing the carbon black subjected to water control and air drying by using drying equipment, so that the carbon black is comprehensively coated by oxygen molecules.
Carbon black with the average particle size of 16nm-20nm is used, the oil absorption value is 60ml/100g-80ml/100g, the carbon black is fully oxidized by oxygen molecules through soaking in 5% nitric acid solution for several hours, and finally, after drying, the carbon black is completely coated by the oxygen molecules, so that the resistivity of the carbon black molecules is greatly improved.
Example 2:
referring to fig. 1-3, the drying apparatus includes a box 1, an air duct 2, a drying fan 3, a first slide 4, a second slide 5, a duct 6, a split slide 7, a movable box 8, a stirring rod 9, a stirring blade 10, a clamping block 11, a motor 12, a base 13, a feed hopper 14, a handle 15, and a clamping groove 16; a first slide way 4 is fixedly connected to the upper part inside the box body 1, a second slide way 5 is arranged below one end of the first slide way 4, the second slide way 5 is fixedly connected with the box body 1, one end of the second slide way 5 is fixedly connected with a pipeline 6, and the left side and the right side below the pipeline 6 are fixedly connected with a shunting slide way 7; a movable box body 8 is clamped at the lower part inside the box body 1, a stirring rod 9 is rotatably connected inside the movable box body 8, a stirring blade 10 is fixedly connected to the outer wall of the stirring rod 9, a motor 12 is arranged at one end of the stirring rod 9, and the motor 12 is fixedly connected with the box body 1 through a connecting seat; the left and right sides of box 1 are fixedly connected with tuber pipe 2, and the inside fixedly connected with drying fan 3 of tuber pipe 2. A clamping block 11 is fixedly connected to the outer wall of one end of the stirring rod 9; a clamping groove 16 is formed in the rotating shaft of the motor 12; the latch 11 is clamped in the slot 16. One end of the movable box body 8 is fixedly connected with a handle 15. The top fixedly connected with feeder hopper 14 of box 1, and bottom fixedly connected with base 13.
Specifically, the drying fan 3 is started first, so that the inside of the box body 1 is ventilated, carbon black dried by water control is thrown into the inside of the feed hopper 14 and conveyed into the inside of the box body 1 through the feed hopper 14, the carbon black firstly flows through the first slide way 4 and enters the second slide way 5 through the first slide way 4, then enters the inside of the movable box body 8 through the pipeline 6, and the carbon black can be dispersed through the shunting slide way 7, so that the carbon black is not concentrated and accumulated in the inside of the movable box body 8, the first slide way 4, the second slide way 5 and the shunting slide way 7 are all provided with arc-shaped slide ways, then the stirring rod 9 and the stirring blade 10 are driven to rotate through the motor 12, so that the carbon black is stirred, the carbon black is continuously dried, the carbon black is completely dried, finally, the movable box body 8 is pulled to one side through the handle 15 after the carbon black is dried, because the stirring rod 9 is clamped through the clamping groove 16 in the rotating shaft of the clamping block 11 and the motor 12, when the movable box body 8 moves to one side, the clamping block 11 can be separated from the clamping groove 16, so that the movable box body 8 is separated from the inside of the box body 1, and carbon black in the movable box body 8 is taken out. When the fixture block 11 needs to be clamped in the clamping groove 16 again, the fixture block 1 and the clamping groove 16 can be aligned, matched and clamped only by manually rotating the stirring rod 9; the first slide way 4 and the second slide way 5 are arranged to roll the carbon black, so that the rolling path of the carbon black is prolonged, the carbon black is dried comprehensively, and the carbon black is coated comprehensively by oxygen molecules.
The scheme in this embodiment can be selectively combined with the scheme in other embodiments.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A processing technology of nano-scale insulating carbon black is characterized in that: comprises the processing steps of filtering and screening, selecting and detecting materials, soaking by peracid, taking out raw materials and drying.
2. The processing technology of nano-scale insulating carbon black according to claim 1, characterized by comprising the following specific processing steps:
s1, filtering and screening: selecting carbon black for screening;
s2, selecting and detecting: detecting the oil absorption value of the carbon black;
s3, peracid soaking: soaking the carbon black with the detected oil absorption value in a 5% nitric acid solution;
s4, taking out raw materials: taking out the carbon black soaked by the peracid, and placing the carbon black in a water control tank for airing;
s5, drying: and (3) drying and processing the carbon black subjected to water control and air drying by using drying equipment, so that the carbon black is comprehensively coated by oxygen molecules.
3. The process for preparing nano-sized insulating carbon black according to claim 2, wherein: the average grain diameter of the carbon black is 16nm-20 nm.
4. The process for preparing nano-sized insulating carbon black according to claim 2, wherein: selecting carbon black with the detected oil absorption value of 60ml/100g-80ml/100 g.
5. The process for preparing nano-sized insulating carbon black according to claim 2, wherein: the carbon black is placed in a 5% nitric acid solution for soaking for 3 h.
6. The process for preparing nano-sized insulating carbon black according to claim 2, wherein: the drying device comprises a box body (1), an air pipe (2), a drying fan (3), a first slide way (4), a second slide way (5), a pipeline (6), a shunting slide way (7), a movable box body (8), a stirring rod (9), a stirring blade (10), a clamping block (11), a motor (12), a base (13), a feeding hopper (14), a handle (15) and a clamping groove (16);
a first slide way (4) is fixedly connected to the upper portion inside the box body (1), a second slide way (5) is arranged below one end of the first slide way (4), the second slide way (5) is fixedly connected with the box body (1), a pipeline (6) is fixedly connected to one end of the second slide way (5), and shunting slide ways (7) are fixedly connected to the left side and the right side below the pipeline (6);
a movable box body (8) is clamped below the inner part of the box body (1), a stirring rod (9) is rotatably connected to the inner part of the movable box body (8), a stirring blade (10) is fixedly connected to the outer wall of the stirring rod (9), a motor (12) is arranged at one end of the stirring rod (9), and the motor (12) is fixedly connected with the box body (1) through a connecting seat;
the air-drying box is characterized in that air pipes (2) are fixedly connected to the left side and the right side of the box body (1), and drying fans (3) are fixedly connected to the inner portions of the air pipes (2).
7. Drying apparatus according to claim 3, wherein: a clamping block (11) is fixedly connected to the outer wall of one end of the stirring rod (9);
a clamping groove (16) is formed in the rotating shaft of the motor (12);
the clamping block (11) is clamped in the clamping groove (16).
8. The drying apparatus according to claim 3, characterized in that: one end of the movable box body (8) is fixedly connected with a handle (15).
9. The drying apparatus according to claim 3, characterized in that: the top fixedly connected with feeder hopper (14) of box (1), and bottom fixedly connected with base (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110601481.1A CN113292870A (en) | 2021-05-31 | 2021-05-31 | Processing technology of nanoscale insulating carbon black |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110601481.1A CN113292870A (en) | 2021-05-31 | 2021-05-31 | Processing technology of nanoscale insulating carbon black |
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| CN113292870A true CN113292870A (en) | 2021-08-24 |
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Citations (7)
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| CN201715836U (en) * | 2010-08-05 | 2011-01-19 | 乌海黑猫炭黑有限责任公司 | Carbon black drying apparatus |
| CN106243731A (en) * | 2016-08-24 | 2016-12-21 | 北京北化高科新技术股份有限公司 | A kind of polydimethylsiloxane black masterbatch and preparation method thereof |
| US20170037253A1 (en) * | 2015-08-07 | 2017-02-09 | Monolith Materials, Inc. | Method of making carbon black |
| CN106634059A (en) * | 2016-12-16 | 2017-05-10 | 江南大学 | Preparation method of aqueous self-dispersing nanometer carbon black |
| CN108020049A (en) * | 2017-11-20 | 2018-05-11 | 安徽华美新材料科技有限公司 | A kind of fire-retardant pigmenting raw material drying apparatus of high-efficient environment protection level |
| CN207713663U (en) * | 2017-11-08 | 2018-08-10 | 广州考科生物科技有限公司 | A kind of maltodextrin high-efficiency device for extracting |
| CN111117301A (en) * | 2020-01-08 | 2020-05-08 | 郑州久源化工有限公司 | Preparation method and application of modified carbon black |
-
2021
- 2021-05-31 CN CN202110601481.1A patent/CN113292870A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201715836U (en) * | 2010-08-05 | 2011-01-19 | 乌海黑猫炭黑有限责任公司 | Carbon black drying apparatus |
| US20170037253A1 (en) * | 2015-08-07 | 2017-02-09 | Monolith Materials, Inc. | Method of making carbon black |
| CN106243731A (en) * | 2016-08-24 | 2016-12-21 | 北京北化高科新技术股份有限公司 | A kind of polydimethylsiloxane black masterbatch and preparation method thereof |
| CN106634059A (en) * | 2016-12-16 | 2017-05-10 | 江南大学 | Preparation method of aqueous self-dispersing nanometer carbon black |
| CN207713663U (en) * | 2017-11-08 | 2018-08-10 | 广州考科生物科技有限公司 | A kind of maltodextrin high-efficiency device for extracting |
| CN108020049A (en) * | 2017-11-20 | 2018-05-11 | 安徽华美新材料科技有限公司 | A kind of fire-retardant pigmenting raw material drying apparatus of high-efficient environment protection level |
| CN111117301A (en) * | 2020-01-08 | 2020-05-08 | 郑州久源化工有限公司 | Preparation method and application of modified carbon black |
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Application publication date: 20210824 |