CN109096487A - Barium titanate/polyaniline composite material preparation method and applications - Google Patents
Barium titanate/polyaniline composite material preparation method and applications Download PDFInfo
- Publication number
- CN109096487A CN109096487A CN201710470562.6A CN201710470562A CN109096487A CN 109096487 A CN109096487 A CN 109096487A CN 201710470562 A CN201710470562 A CN 201710470562A CN 109096487 A CN109096487 A CN 109096487A
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- CN
- China
- Prior art keywords
- barium titanate
- composite material
- polyaniline composite
- preparation
- suspension
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/02—Polyamines
- C08G73/026—Wholly aromatic polyamines
- C08G73/0266—Polyanilines or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
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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
- C09K3/00—Materials not provided for elsewhere
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
Abstract
This application discloses a kind of preparation method and applications of barium titanate/polyaniline composite material, and the method comprising the steps of: (1), by KH570 being dissolved in the mixed solution of dehydrated alcohol and distilled water；(2), barium titanate is added in above-mentioned mixed solution, is stirred 20~40min, obtain suspension；(3), aniline monomer is added in suspension, 80~100 DEG C are heated to, is stirred 10~40 minutes, 0~3 DEG C is cooled in ice-water bath, then the pH value for adjusting above-mentioned suspension with the aqueous solution of acid is added dropwise ammonium persulfate and carries out oxidative polymerization to 2~4；(4), after polymerization reaction to be oxidized, the solid phase that should be generated is negated, to dry after ethyl alcohol, distillation water washing, grinding obtains barium titanate/polyaniline composite material.Composite material of the invention has good wave absorbing efficiency, and maximum absorption band is in -16.4dB or so, and bandwidth is in 1300MHz or so.
Description
Technical field
This application involves a kind of novel wave-absorbing materials, more particularly to a kind of preparation of barium titanate/polyaniline composite material
Method and its application.
Background technique
With the fast development of electronic information technology, the electromagnetic wave occurred in surrounding space is also more and more diversified, in order to
Interfering with each other between electronic device and the influence to human body health are avoided, absorbing material is in electronic technology field and human body
Protection aspect has important application.
It is conventional to tie since absorbing material needs to obtain maximum electromagnetic absorption while reducing to reflection of electromagnetic wave
The absorbing material of structure is generally difficult to meet its requirement.
Summary of the invention
The purpose of the present invention is to provide a kind of preparation method and applications of barium titanate/polyaniline composite material, with gram
Take deficiency in the prior art.
To achieve the above object, the invention provides the following technical scheme:
The embodiment of the present application discloses a kind of preparation method of barium titanate/polyaniline composite material, comprising steps of
(1), KH570 is dissolved in the mixed solution of dehydrated alcohol and distilled water；
(2), barium titanate is added in above-mentioned mixed solution, is stirred 20~40min, obtain suspension；
(3), aniline monomer is added in suspension, is heated to 80~100 DEG C, is stirred 10~40 minutes, in ice water
0~3 DEG C is cooled in bath, then the pH value for adjusting above-mentioned suspension with the aqueous solution of acid is added dropwise ammonium persulfate and carries out to 2~4
Oxidative polymerization；
(4), after polymerization reaction to be oxidized, the solid phase that should be generated is negated, to be dried after ethyl alcohol, distillation water washing, is ground
Mill obtains barium titanate/polyaniline composite material.
Preferably, in above-mentioned barium titanate/polyaniline composite material preparation method, in the step (1), KH570
Additive amount be 0.01~0.025g/mL.
Preferably, in above-mentioned barium titanate/polyaniline composite material preparation method, in the step (2), barium titanate
Additional amount be 2~3g/mL
Preferably, in above-mentioned barium titanate/polyaniline composite material preparation method, in the step (3), sour water
Solution is hydrochloric acid.
Preferably, in above-mentioned barium titanate/polyaniline composite material preparation method, the average grain diameter of the barium titanate
For 50nm.
Preferably, in above-mentioned barium titanate/polyaniline composite material preparation method, in the step (3), barium titanate
Molar ratio with aniline monomer is 4~7:1.
Disclosed herein as well is barium titanate/polyaniline composite materials in the application for inhaling wave field.
Compared with the prior art, the advantages of the present invention are as follows: composite material of the invention has good wave absorbing efficiency,
Maximum absorption band is in -16.4dB or so, and bandwidth is in 1300MHz or so.
Specific embodiment
The present invention is described further by the following example: according to following embodiments, the present invention may be better understood.
However, as it will be easily appreciated by one skilled in the art that specific material ratio, process conditions and its result described in embodiment are only used
In illustrating the present invention, without the present invention described in detail in claims should will not be limited.
Embodiment 1
KH570 is dissolved in the mixed solution of dehydrated alcohol and distilled water, wherein the additive amount of KH570 is 0.02g/
mL。
Barium titanate (average grain diameter 50nm) is added in above-mentioned mixed solution, the additional amount of barium titanate is 3g/mL, stirring
20min is mixed, suspension is obtained.
Aniline monomer is added in suspension, is heated to 100 DEG C, is stirred 30 minutes, 0 is cooled in ice-water bath
DEG C, then it is anti-that ammonium persulfate progress oxidation polymerization is added dropwise to 3 or so in the pH value for adjusting above-mentioned suspension with the aqueous solution of hydrochloric acid
It answers, wherein the molar ratio of barium titanate and aniline monomer is 6:1.
After polymerization reaction to be oxidized, the solid phase that should be generated is negated, to dry after ethyl alcohol, distillation water washing, grinding is obtained
Obtain barium titanate/polyaniline composite material.
The maximum absorption band of composite material is in -16.4dB or so, and bandwidth is in 1300MHz or so.
Embodiment 2
KH570 is dissolved in the mixed solution of dehydrated alcohol and distilled water, wherein the additive amount of KH570 is 0.025g/
mL。
Barium titanate (average grain diameter 50nm) is added in above-mentioned mixed solution, the additional amount of barium titanate is 2g/mL, stirring
20min is mixed, suspension is obtained.
Aniline monomer is added in suspension, is heated to 100 DEG C, is stirred 30 minutes, 0 is cooled in ice-water bath
DEG C, then it is anti-that ammonium persulfate progress oxidation polymerization is added dropwise to 3 or so in the pH value for adjusting above-mentioned suspension with the aqueous solution of hydrochloric acid
It answers, wherein the molar ratio of barium titanate and aniline monomer is 4:1.
After polymerization reaction to be oxidized, the solid phase that should be generated is negated, to dry after ethyl alcohol, distillation water washing, grinding is obtained
Obtain barium titanate/polyaniline composite material.
The maximum absorption band of composite material is in -14.7dB or so, and bandwidth is in 1150MHz or so.
Embodiment 3
KH570 is dissolved in the mixed solution of dehydrated alcohol and distilled water, wherein the additive amount of KH570 is 0.01g/
mL。
Barium titanate (average grain diameter 50nm) is added in above-mentioned mixed solution, the additional amount of barium titanate is 3g/mL, stirring
20min is mixed, suspension is obtained.
Aniline monomer is added in suspension, is heated to 100 DEG C, is stirred 30 minutes, 0 is cooled in ice-water bath
DEG C, then it is anti-that ammonium persulfate progress oxidation polymerization is added dropwise to 3 or so in the pH value for adjusting above-mentioned suspension with the aqueous solution of hydrochloric acid
It answers, wherein the molar ratio of barium titanate and aniline monomer is 7:1.
After polymerization reaction to be oxidized, the solid phase that should be generated is negated, to dry after ethyl alcohol, distillation water washing, grinding is obtained
Obtain barium titanate/polyaniline composite material.
The maximum absorption band of composite material is in -15.2dB or so, and bandwidth is in 1220MHz or so.
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.
Claims (7)
1. a kind of preparation method of barium titanate/polyaniline composite material, which is characterized in that comprising steps of
(1), KH570 is dissolved in the mixed solution of dehydrated alcohol and distilled water；
(2), barium titanate is added in above-mentioned mixed solution, is stirred 20~40min, obtain suspension；
(3), aniline monomer is added in suspension, is heated to 80~100 DEG C, is stirred 10~40 minutes, in ice-water bath
It is cooled to 0~3 DEG C, then the pH value for adjusting above-mentioned suspension with the aqueous solution of acid is added dropwise ammonium persulfate and is aoxidized to 2~4
Polymerization reaction；
(4), after polymerization reaction to be oxidized, the solid phase that should be generated is negated, to dry after ethyl alcohol, distillation water washing, grinding is obtained
Obtain barium titanate/polyaniline composite material.
2. the preparation method of barium titanate/polyaniline composite material according to claim 1, it is characterised in that: the step
(1) in, the additive amount of KH570 is 0.01~0.025g/mL.
3. the preparation method of barium titanate/polyaniline composite material according to claim 1, it is characterised in that: the step
(2) in, the additional amount of barium titanate is 2~3g/mL.
4. the preparation method of barium titanate/polyaniline composite material according to claim 1, it is characterised in that: the step
(3) in, sour aqueous solution is hydrochloric acid.
5. the preparation method of barium titanate/polyaniline composite material according to claim 1, it is characterised in that: the step
(3) in, the molar ratio of barium titanate and aniline monomer is 4~7:1.
6. the preparation method of barium titanate/polyaniline composite material according to claim 1, it is characterised in that: the metatitanic acid
The average grain diameter of barium is 50nm.
7. any barium titanate/polyaniline composite material of claim 1 to 6 is in the application for inhaling wave field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710470562.6A CN109096487A (en) | 2017-06-20 | 2017-06-20 | Barium titanate/polyaniline composite material preparation method and applications |
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| CN201710470562.6A CN109096487A (en) | 2017-06-20 | 2017-06-20 | Barium titanate/polyaniline composite material preparation method and applications |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110305318A (en) * | 2019-07-04 | 2019-10-08 | 大连交通大学 | A kind of polyaniline/barium titanate composite material and preparation method and application |
Citations (4)
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|---|---|---|---|---|
| WO2002048253A2 (en) * | 2000-12-15 | 2002-06-20 | Kimberly-Clark Worldwide, Inc. | Materials having shape-memory |
| CA2817214A1 (en) * | 2010-11-18 | 2012-05-24 | 3M Innovative Properties Company | Electromagnetic wave isolator |
| CN102775604A (en) * | 2012-08-17 | 2012-11-14 | 中北大学 | Method for preparing core-shell type barium titanate/polyaniline composite wave-absorbing material |
| CN104371101A (en) * | 2014-11-12 | 2015-02-25 | 浙江理工大学 | Preparation method of carbon nano tube barium titanate polyaniline composite material |
-
2017
- 2017-06-20 CN CN201710470562.6A patent/CN109096487A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002048253A2 (en) * | 2000-12-15 | 2002-06-20 | Kimberly-Clark Worldwide, Inc. | Materials having shape-memory |
| CA2817214A1 (en) * | 2010-11-18 | 2012-05-24 | 3M Innovative Properties Company | Electromagnetic wave isolator |
| CN102775604A (en) * | 2012-08-17 | 2012-11-14 | 中北大学 | Method for preparing core-shell type barium titanate/polyaniline composite wave-absorbing material |
| CN104371101A (en) * | 2014-11-12 | 2015-02-25 | 浙江理工大学 | Preparation method of carbon nano tube barium titanate polyaniline composite material |
Non-Patent Citations (3)
| Title |
|---|
| PARVEEN SAINI: "High permittivity polyaniline–barium titanate", 《NANOSCALE》 * |
| 廖梓珺: "聚苯胺／钛酸钡复合粒子的合成及结构表征", 《材料工程》 * |
| 景红霞: "碳酸钡一聚苯胺复合材料的制备及吸波性能", 《功能高分子学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110305318A (en) * | 2019-07-04 | 2019-10-08 | 大连交通大学 | A kind of polyaniline/barium titanate composite material and preparation method and application |
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Application publication date: 20181228 |