CN109970389A - A kind of preparation method of Resbon tube - Google Patents
A kind of preparation method of Resbon tube Download PDFInfo
- Publication number
- CN109970389A CN109970389A CN201811576258.0A CN201811576258A CN109970389A CN 109970389 A CN109970389 A CN 109970389A CN 201811576258 A CN201811576258 A CN 201811576258A CN 109970389 A CN109970389 A CN 109970389A
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- CN
- China
- Prior art keywords
- resbon
- resin
- graphite powder
- preparation
- modified
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/02—Thermal after-treatment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/105—Furfuryl alcohol polymers, e.g. furan-polymers
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/12—Condensation polymers of aldehydes or ketones
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention belongs to graphite-pipe preparation technical fields, and in particular to a kind of preparation method of Resbon tube.This method mixes curing agent and resin, resin and graphite powder mixing are modified after resin surface skinning, it is modified after graphite powder and solidified resin solidify completely to complete to obtain modified graphite powder, modified graphite powder squeeze and becomes graphite-pipe green body, it is heat-treated after extruding, Resbon tube is obtained after the completion of heat treatment.It is substantially reduced using the hole of Resbon tube produced by the present invention, cracking breakout, improves product quality.
Description
Technical field
The invention belongs to graphite-pipe preparation technical fields, and in particular to a kind of preparation method of Resbon tube.
Background technique
Impermeable graphite refers to the graphite product for having impermeability to fluid media (medium)s such as gas, steam, liquid.Graphite material
Material is a kind of special nonmetallic materials, it not only has good physical mechanical property and processing performance, but also has excellent
Therefore different corrosion resistance and high thermal conductivity are the ideal materials for manufacturing chemical anticorrosion equipment.Stone as structural material
Black product also includes some high molecular materials or other compositions, to adapt to different use conditions.Traditional Resbon tube
Preparation mostly uses phenolic resin to mix extruding modification forming at a certain temperature with graphite powder as binder, and as binder
Its k value of the phenolic resin used is generally more demanding, and for numerical value often in 48Pa ﹒ s-76.8 Pa ﹒ s, high viscosity resin is raw
Production. art is complicated, and price is higher, and the graphite pipe crack produced, and hole is more, and ratio is up to 6% or more.Therefore, ability
Field technique personnel need to find the preparation method of a kind of simple process and the less Resbon tube of crackle, hole ratio.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of preparation method of Resbon tube, to solve existing system
The problem of Preparation Method can not use low viscosity resin when preparing.
The technical scheme adopted by the invention is as follows:
A kind of preparation method of Resbon tube, comprising the following steps: 1) mix curing agent and resin, then in 48-53
It is handled under the conditions of DEG C；
2) resin and graphite powder mixing are modified after resin surface skinning, 55-60 DEG C of modification temperature, the modified poly time
It is modified after graphite powder and resin solidify completely to complete to obtain modified graphite powder for 1-1.5h；
3) modified graphite powder squeeze and become graphite-pipe green body, be heat-treated after extruding, heat treatment temperature 145-155
DEG C, Resbon tube is obtained after the completion of heat treatment.
The curing agent is p-methyl benzenesulfonic acid, phosphoric acid or benzene sulfonyl chloride.
Rate when being heat-treated heating in the step 3) is that the heating rate of room temperature to 70 DEG C is 5 DEG C/h；70 DEG C extremely
145-155 DEG C of heating rate is 5 DEG C/h；145-155 DEG C of holding 4h.
The mass ratio of resin and graphite powder is 6.5-7:3-3.5 after skinning in the step 2.
The fineness of the graphite powder be greater than 100 mesh, carbon content >=95%, content of ashes≤2.5%, volatile content≤
0.5%。
The modification of the step 2 carries out in an oven；The heat treatment of the step 3) carries out in atmosphere furnace.
Compared with prior art, the method have the benefit that:
1, the present invention overcomes Resbon tubes in the prior art to use full-bodied binder (such as phenolic resin),
So that the low furfural resin of viscosity can be used for producing Resbon tube, so that simple production process, easy to operate, drop
Low production cost；
2, it is first squeezed using hole, the cracking breakout of Resbon tube made from first modified extrusion forming process of the invention are more existing
Curing technology improves product quality compared to substantially reducing after pressure.
Specific embodiment
Illustrate a specific embodiment of the invention below with reference to embodiment, but following embodiment is used only to be described in detail
The present invention does not limit the scope of the invention in any way.
The fineness of graphite powder used in following embodiment be greater than 100 mesh, carbon content >=95%, content of ashes≤
2.5%, volatile content≤0.5%, and the exogenous impurities such as iron filings must not be mixed with.
The index of the furfural resin used in following embodiment are as follows:
Embodiment 1:
A kind of preparation method of Resbon tube, comprising the following steps: 1) by curing agent (p-methyl benzenesulfonic acid) and furfural resin
It mixes, is then placed into baking oven and is handled under the conditions of 48 DEG C；
2) resin is placed in baking oven after resin surface skinning with graphite powder mixing and is modified, resin and graphite after skinning
The ratio of powder is 6.5:3.5, and 55 DEG C of modification temperature, the modified poly time is 1.5h, is changed after graphite powder solidifies completely with resin
Property is completed to obtain modified graphite powder；
3) modified graphite powder is put into extruder squeeze and becomes graphite-pipe green body, carry out hot place after extruding in atmosphere furnace
Reason, 145 DEG C of heat treatment temperature, rate when heat treatment heats up is that the heating rate of room temperature to 70 DEG C is 5 DEG C/h；70 DEG C to 145
DEG C heating rate be 5 DEG C/h；145 DEG C of holding 4h obtain Resbon tube after the completion of heat treatment.
Embodiment 2:
A kind of preparation method of Resbon tube, comprising the following steps: 1) mix curing agent (phosphoric acid) and furfural resin, so
After be placed in baking oven and handled under the conditions of 53 DEG C；
2) resin is placed in baking oven after resin surface skinning with graphite powder mixing and is modified, resin and graphite after skinning
The ratio of powder is 7:3, and 60 DEG C of modification temperature, the modified poly time is 1h, modified after graphite powder and resin solidify completely to complete
Obtain modified graphite powder；
3) modified graphite powder is put into extruder squeeze and becomes graphite-pipe green body, carry out hot place after extruding in atmosphere furnace
Reason, 155 DEG C of heat treatment temperature, rate when heat treatment heats up is that the heating rate of room temperature to 70 DEG C is 5 DEG C/h；70 DEG C to 155
DEG C heating rate be 5 DEG C/h；155 DEG C of holding 4h obtain Resbon tube after the completion of heat treatment.
Embodiment 3:
A kind of preparation method of Resbon tube, comprising the following steps: 1) curing agent (benzene sulfonyl chloride) and furfural resin is mixed
It is even, it is then placed into baking oven and is handled under the conditions of 50 DEG C；
2) resin is placed in baking oven after resin surface skinning with graphite powder mixing and is modified, resin and graphite after skinning
The ratio of powder is 6.5-7:3-3.5, and 58 DEG C of modification temperature, the modified poly time is 1.2h, is solidified completely to graphite powder with resin
It is modified afterwards to complete to obtain modified graphite powder；
3) modified graphite powder is put into extruder squeeze and becomes graphite-pipe green body, carry out hot place after extruding in atmosphere furnace
Reason, 150 DEG C of heat treatment temperature, rate when heat treatment heats up is that the heating rate of room temperature to 70 DEG C is 5 DEG C/h；70 DEG C to 150
DEG C heating rate be 5 DEG C/h；150 DEG C of holding 4h obtain Resbon tube after the completion of heat treatment.
To detecting for the embodiment 1-3 Resbon tube prepared, thermal conductivity, linear expansion coefficient, which meet product, to be wanted
The standard asked, while the hole of statistical product Resbon tube, crackle ratio are 3%, are substantially reduced compared with prior art.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, this field is common
Other modifications or equivalent replacement that technical staff makes technical solution of the present invention, without departing from technical solution of the present invention
Spirit and scope, be intended to be within the scope of the claims of the invention.
Claims (6)
1. a kind of preparation method of Resbon tube, which comprises the following steps: 1) mix curing agent and resin
It is even, then handled under the conditions of 48-53 DEG C；
2) resin and graphite powder mixing are modified after resin surface skinning, 55-60 DEG C of modification temperature, the modified poly time
It is modified after graphite powder and resin solidify completely to complete to obtain modified graphite powder for 1-1.5h；
3) modified graphite powder squeeze and become graphite-pipe green body, be heat-treated after extruding, heat treatment temperature 145-155
DEG C, Resbon tube is obtained after the completion of heat treatment.
2. the preparation method of Resbon tube according to claim 1, it is characterised in that: the resin is furfural tree
Rouge.
3. the preparation method of Resbon tube according to claim 1 or 2, it is characterised in that: hot in the step 3)
Rate when processing heating is that the heating rate of room temperature to 70 DEG C is 5 DEG C/h；70 DEG C to 145-155 DEG C of heating rate be 5 DEG C/
h；145-155 DEG C of holding 4h.
4. the preparation method of Resbon tube according to claim 1 or 2, it is characterised in that: risen in the step 2
The mass ratio of resin and graphite powder is 6.5-7:3-3.5 after film.
5. the preparation method of Resbon tube according to claim 1 or 2, it is characterised in that: the graphite powder it is thin
Degree is greater than 100 mesh, carbon content >=95%, content of ashes≤2.5%, volatile content≤0.5%.
6. the preparation method of Resbon tube according to claim 1 or 2, it is characterised in that: the step 2 changes
Property carries out in an oven；The heat treatment of the step 3) carries out in atmosphere furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811576258.0A CN109970389A (en) | 2018-12-22 | 2018-12-22 | A kind of preparation method of Resbon tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811576258.0A CN109970389A (en) | 2018-12-22 | 2018-12-22 | A kind of preparation method of Resbon tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109970389A true CN109970389A (en) | 2019-07-05 |
Family
ID=67076286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811576258.0A Pending CN109970389A (en) | 2018-12-22 | 2018-12-22 | A kind of preparation method of Resbon tube |
Country Status (1)
| Country | Link |
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| CN (1) | CN109970389A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1431417A (en) * | 2003-01-09 | 2003-07-23 | 冯圣君 | Carbon fiber graphite tube with high strength, high transmit heat and its production method |
| CN104002460A (en) * | 2014-05-13 | 2014-08-27 | 龚孝祥 | Graphite pipe manufacturing method for eliminating extruding internal stress and microcracks |
-
2018
- 2018-12-22 CN CN201811576258.0A patent/CN109970389A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1431417A (en) * | 2003-01-09 | 2003-07-23 | 冯圣君 | Carbon fiber graphite tube with high strength, high transmit heat and its production method |
| CN104002460A (en) * | 2014-05-13 | 2014-08-27 | 龚孝祥 | Graphite pipe manufacturing method for eliminating extruding internal stress and microcracks |
Non-Patent Citations (3)
| Title |
|---|
| 李德旺: "《最新工厂常用清洗剂、脱脂剂、萃取剂操作控制与管理控制及典型案例剖析实务全书 （上册）》", 30 April 2005, 中国化工出版社 * |
| 杨国华等: "《炭素材料（上册）》", 31 October 1999, 中国物资出版社 * |
| 龚健中等: "《石墨制化工设备设计》", 28 February 1989, 上海科学技术出版社 * |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: Dong Jiao Bian Cun, Shunhe District, Kaifeng City, Henan Province Applicant after: Kaifeng Pingmei new carbon material technology Co.,Ltd. Address before: 475000 east suburb village of Shun He District, Kaifeng City, Henan Applicant before: Kaifeng Carbon Co., Ltd., China Pingmei Shenma Group |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190705 |