CN108675807A - A kind of modified polyvinyl pyrrolidone and preparation method thereof - Google Patents
A kind of modified polyvinyl pyrrolidone and preparation method thereof Download PDFInfo
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- CN108675807A CN108675807A CN201810643439.4A CN201810643439A CN108675807A CN 108675807 A CN108675807 A CN 108675807A CN 201810643439 A CN201810643439 A CN 201810643439A CN 108675807 A CN108675807 A CN 108675807A
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- Prior art keywords
- pvp
- preparation
- polyvinyl pyrrolidone
- carbon
- modified polyvinyl
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- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Catalysts (AREA)
Abstract
The present invention relates to a kind of modified polyvinyl pyrrolidone and preparation method thereof, technical solution is：Polyvinylpyrrolidone (PVP) is mixed according to a certain percentage with catalyst, obtains modified PVP.Modification PVP prepared by the present invention through bury carbon high-temp heat treatment after can in-situ preparation it is one-dimensional carbon nano-structured, improve the carbon yield and heat decomposition temperature of PVP, and environmental-friendly, it is easy to operate.
Description
Technical field
The invention belongs to binder for fire-resistant materials fields, and in particular to a kind of modified polyvinyl pyrrolidone and its preparation side
Method.
Background technology
Carbon containing refractory is usually using phenolic resin and pitch as bonding agent.Phenolic resin and pitch, which have, to be combined by force
Degree is big, the high advantage of carbon residue, but will produce the toxic irritative gas such as formaldehyde, BaP in use, pollutes ring
Health of human body is jeopardized in border.Compared to phenolic resin and pitch, PVP not will produce irritative gas, environment friend in use
It is good, but its heat decomposition temperature is low, and carbon residue is low, eventually influences quality of item, how to improve the heat decomposition temperature and carbon yield of PVP
Just become critical issue, therefore just there is theory significance and practical value to the study on the modification of PVP.
Invention content
In order to solve the problems, such as PVP, as bonding agent, heat decomposition temperature is low in use, carbon yield is low, purport of the present invention
A kind of a kind of preparation method for the modified PVP that can solve described problem is being provided.
In order to achieve the above object, the technical solution adopted by the present invention is：Appropriate PVP, additional 1 ~ 3% transition metal is taken to urge
The two is uniformly mixed to get to modified PVP by agent.
The modification PVP of gained using the above scheme, in use, the carburetted hydrogen gas that Catalyst Adsorption PVP cracking generates
Body, in-situ preparation is one-dimensional carbon nano-structured, and the agraphitic carbon after PVP is carbonized is converted into graphitized carbon, improves the carbon residue of PVP
Rate and its thermal stability to improve refratory material antioxidant and thermal shock resistance, and do not stimulate in use
The generation of property gas, it is environmental-friendly.
Specific embodiment 1
Take appropriate PVP, additional 1wt% nickel oxide（1-10 μm of granularity）, so that the two is uniformly dispersed, modified PVP obtained, through 150MPa
Carbon charing process 3h is buried after compression moulding in 1200 DEG C.
Find after testing, modified PVP pyrolytic carbons by it is one-dimensional it is carbon nano-structured in the form of exist；The carbon yield of modified PVP carries
High by 10%, heat decomposition temperature improves 30%.
Specific embodiment 2
Take appropriate PVP, additional 3wt% nickel oxide（1-10 μm of granularity）, so that the two is uniformly dispersed, modified PVP obtained, through 150MPa
Carbon charing process 3h is buried after compression moulding in 1400 DEG C.
Find after testing, modified PVP pyrolytic carbons by it is one-dimensional it is carbon nano-structured in the form of exist；The carbon yield of modified PVP carries
High by 4%, heat decomposition temperature improves 11%.
Claims (3)
1. a kind of modified polyvinyl pyrrolidone and preparation method thereof, it is characterized in that：The catalyst of additional 1 ~ 3 wt % into PVP
And be uniformly mixed, through molding, after carbonization treatment, obtained modification PVP can in-situ preparation it is one-dimensional carbon nano-structured.
2. preparation method described in claim 1, it is characterised in that catalyst type is transition metal oxide --- nickel oxide,
Nickel oxide quality index is：Purity ＞ 95%, 1-10 μm of granularity.
3. preferable preparation method described in claim 1, it is characterised in that carburizing temperature is 1200 ~ 1400 DEG C, carbonation rate 2
DEG C/min, carbonization soaking time 3h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810643439.4A CN108675807A (en) | 2018-06-21 | 2018-06-21 | A kind of modified polyvinyl pyrrolidone and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810643439.4A CN108675807A (en) | 2018-06-21 | 2018-06-21 | A kind of modified polyvinyl pyrrolidone and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108675807A true CN108675807A (en) | 2018-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201810643439.4A Pending CN108675807A (en) | 2018-06-21 | 2018-06-21 | A kind of modified polyvinyl pyrrolidone and preparation method thereof |
Country Status (1)
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06297876A (en) * | 1993-04-20 | 1994-10-25 | Iwatsu Electric Co Ltd | Desensitizing processing liquid for offset printing |
| CN107029715A (en) * | 2017-05-27 | 2017-08-11 | 上海应用技术大学 | Rhodium base catalyst that a kind of polyvinylpyrrolidone PVP is modified and its preparation method and application |
| CN107140993A (en) * | 2017-07-13 | 2017-09-08 | 华北理工大学 | A kind of modified bonding agent |
| CN107226892A (en) * | 2017-06-02 | 2017-10-03 | 武汉燃控碳烯科技有限公司 | A kind of phenol-formaldehyde resin modified of energy in-situ preparation CNT and preparation method thereof |
| CN107235740A (en) * | 2017-06-30 | 2017-10-10 | 长兴泓矿炉料有限公司 | A kind of fiber reinforced refractory material |
-
2018
- 2018-06-21 CN CN201810643439.4A patent/CN108675807A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06297876A (en) * | 1993-04-20 | 1994-10-25 | Iwatsu Electric Co Ltd | Desensitizing processing liquid for offset printing |
| CN107029715A (en) * | 2017-05-27 | 2017-08-11 | 上海应用技术大学 | Rhodium base catalyst that a kind of polyvinylpyrrolidone PVP is modified and its preparation method and application |
| CN107226892A (en) * | 2017-06-02 | 2017-10-03 | 武汉燃控碳烯科技有限公司 | A kind of phenol-formaldehyde resin modified of energy in-situ preparation CNT and preparation method thereof |
| CN107235740A (en) * | 2017-06-30 | 2017-10-10 | 长兴泓矿炉料有限公司 | A kind of fiber reinforced refractory material |
| CN107140993A (en) * | 2017-07-13 | 2017-09-08 | 华北理工大学 | A kind of modified bonding agent |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181019 |
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| WD01 | Invention patent application deemed withdrawn after publication |