CN107434389A - A kind of Thistle board of anti-electromagnetic radiation and preparation method thereof - Google Patents
A kind of Thistle board of anti-electromagnetic radiation and preparation method thereof Download PDFInfo
- Publication number
- CN107434389A CN107434389A CN201610352751.9A CN201610352751A CN107434389A CN 107434389 A CN107434389 A CN 107434389A CN 201610352751 A CN201610352751 A CN 201610352751A CN 107434389 A CN107434389 A CN 107434389A
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- China
- Prior art keywords
- thistle board
- absorbing material
- dispersant
- electromagnetic radiation
- slurry
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Classifications
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00025—Aspects relating to the protection of the health, e.g. materials containing special additives to afford skin protection
Abstract
A kind of Thistle board of anti-electromagnetic radiation and the method for preparing the Thistle board, wherein, the Thistle board contains absorbing material and dispersant, and the dispersant is the one or more in cellulose dispersant, PAMA and polyethylene glycol oxide；The method for preparing the Thistle board comprises the following steps：Absorbing material and dispersant are added to the water stirring, obtain the first slurry；Modified starch and foaming agent are added into first slurry, building gypsum plaster is added after stirring, stirs, obtains the second slurry；By the second sizing material forming, drying, the Thistle board of the anti-electromagnetic radiation is obtained.The Thistle board anti-electromagnetic radiation effect of the application is good and environment-protecting and non-poisonous, suitable for large-scale production.
Description
Technical field
The application relates to, but are not limited to a kind of Thistle board, and in particular to but it is not limited to a kind of there is electromagnetic radiation protection
Environmentally friendly Thistle board of function and preparation method thereof.
Background technology
Indoors, indoor environment turns into the main ring for influenceing health of people for the time service of modern more than 80% and life
Border factor.With developing rapidly for science and technology, electronic communication equipment, business automation equipment and household electrical appliance are in use
Electromagnetic radiation can be produced to some extent.Electromagnetic radiation pollution is referred to as " stealthy killer ", and the World Health Organization has been classified as
The fourth-largest environmental pollution after water, air, noise pollution.When electromagnetic radiation passes through human body, its energy can be inhaled by human body
Receive, if this energy is excessive, the duration is long, and electromagnetic radiation can pass through fuel factor, non-thermal effect and build-up effect etc. pair
Tissue, organ and the systematic function of human normal damage.It is chronically under radiation environment, cardiovascular system to people, regards
Feel system, reproductive system can produce harmful effect, can seriously cause cancer.
The content of the invention
The application provides a kind of Thistle board of anti-electromagnetic radiation.
The Thistle board of anti-electromagnetic radiation provided herein contains absorbing material and dispersant, and the dispersant can
Think the one or more in cellulose dispersant, PAMA and polyethylene glycol oxide.
In some embodiments, the cellulose dispersant can be methylcellulose, sodium carboxymethylcellulose, hydroxyl first
One or more in base sodium cellulosate and hydroxyethyl cellulose.
In some embodiments, the absorbing material can be carbon system absorbing material, ceramics system absorbing material and iron system
One or more in absorbing material.
In some embodiments, carbon system absorbing material can be in carbon fiber, carbon black, graphite and CNT
It is one or more.
In some embodiments, ceramics system absorbing material can be carborundum, silicon nitride, barium titanate and three oxidations
One or more in two aluminium.
In some embodiments, iron system absorbing material can be ferrite, iron carbonyl, polycrystalline iron fiber and ultra-fine
One or more in metal powder.
In some embodiments, the Thistle board can include each component of following parts by weight：
In some embodiments, the Thistle board can include each component of following parts by weight：
In some embodiments, the foaming agent can be lauryl sodium sulfate, neopelex,
One or more in polyglycol ether and gleditsia sinensis rosin acids.
The application also provides a kind of method for the Thistle board for preparing above-described anti-electromagnetic radiation.
The methods described of the Thistle board for preparing anti-electromagnetic radiation provided herein comprises the following steps：
Absorbing material and dispersant are added to the water stirring, obtain the first slurry；
Modified starch and foaming agent are added into first slurry, building gypsum plaster is added after stirring, is stirred, obtains the
Two slurries；
By the second sizing material forming, drying, the Thistle board of the anti-electromagnetic radiation is obtained.
In some embodiments, between the shaping by second slurry including being layered on two layers of mask paper, obtain wet
Plate.
In some embodiments, the thickness of the wet plate is 12-18mm.
In some embodiments, the wet plate is dried to constant weight at a temperature of the drying is included in 110-160 DEG C.
Some absorbing materials, such as carbon fiber, the dispersion effect in water may be bad.In order to improve absorbing material in water
In dispersion effect, mechanical agitation, ultrasonic disperse or the mode for adding dispersant, but existing dispersant can be selected
Numerous, the occasion that different dispersants is applicable is also different, selects and a kind of absorbing material is divided in numerous dispersants
Dissipate that effect is good and not influence the dispersant of the production system of Thistle board and properties of product be not a simple thing, example
Such as, when absorbing material is carbon fiber, it is impossible to polyurethane-type dispersant is selected, because polyurethane-type dispersant can not significantly improve
The viscosity of aqueous dispersion, carbon fiber is set not suspend well, dispersion effect and unobvious.
Present inventor passes through substantial amounts of theoretical research and Experimental Verification, selects cellulose dispersant, anion to gather
As dispersant, this several dispersant is respectively provided with preferably scattered effect to all absorbing materials for acrylamide and polyethylene glycol oxide
Fruit, and be directly added into the raw materials for production of Thistle board, it is not necessary to adjust production technology and increase extra equipment,
The production system of original Thistle board is not influenceed so that the Thistle board prepared can effectively absorb interior
Electromagnetic radiation pollution, improve indoor living environment.Meanwhile it is asepsis environment-protecting material that the application, which prepares the raw material of Thistle board,
Material, therefore the Thistle board of the application has the advantages of environmentally friendly again.Wherein, when the application selects carbon fiber as absorbing material
When, the bend resistance intensity for the Thistle board prepared obtains larger raising.
Brief description of the drawings
Fig. 1 is the preparation flow schematic diagram of the anti-electromagnetic radiation Thistle board of application embodiment.
Embodiment
Presently filed embodiment is described below by embodiment, it will be appreciated by the person skilled in the art that these
Specific embodiment only indicates that to the purpose for reaching the application and the implementation technical scheme selected, is not to technical scheme
Limitation.According to teachings of the present application, it is obvious with reference to improvement of the prior art to technical scheme, belongs to the application
The scope of protection.
Building gypsum plaster used in embodiment is the gesso obtained by the desulphurization gypsum calcination of Bei Xin factories, its
His raw material can be by arbitrarily buying acquisition on the market.
The preparation of Thistle board
Embodiment 1
The preparation of Thistle board is carried out according to the flow chart shown in Fig. 1.
Step 1：Building gypsum plaster 300g, modified starch 1.2g, lauryl sodium sulfate 0.18g, carbon fiber 0.3g are weighed,
Sodium carboxymethylcellulose 0.3g.
Step 2：Carbon fiber, sodium carboxymethylcellulose and water are sufficiently mixed, obtain the first slurry.
Step 3：Lauryl sodium sulfate, modified starch are added in the first slurry, are sufficiently stirred.
Step 4：In the solution that building gypsum plaster addition above-mentioned steps 3 are obtained, stirring obtains uniform second slurry.
Step 5：Second slurry is uniformly layered between upper and lower two layers of mask paper and obtains wet plate.
Step 6：The wet plate is dried to constant weight at 140 DEG C.
Embodiment 2
Step 1：Weigh building gypsum plaster 300g, modified starch 3g, lauryl sodium sulfate 0.6g, carbon fiber 30g, hydroxyl first
Base sodium cellulosate 15g.
Step 2：Carbon fiber, sodium cellulose glycolate and water are sufficiently mixed, obtain the first slurry.
Remaining step is the same as the step 3-6 in embodiment 1.
Embodiment 3
Step 1：Weigh building gypsum plaster 300g, modified starch 2.4g, lauryl sodium sulfate 0.3g, carbon fiber 3g, carboxylic
Sodium carboxymethylcellulose pyce 6g.
Remaining step is the same as the step 2-6 in embodiment 1.
Embodiment 4
Step 1：Weigh building gypsum plaster 300g, modified starch 3g, polyglycol ether 0.3g, graphite 45g, carboxymethyl cellulose
Plain sodium 6g.
Step 2：Graphite, sodium carboxymethylcellulose and water are sufficiently mixed, obtain the first slurry.
Step 3：Polyglycol ether, modified starch are added in the first slurry, are sufficiently stirred.
Remaining step is the same as the step 4-6 in embodiment 1.
Embodiment 5
Step 1：Weigh building gypsum plaster 300g, modified starch 3, polyglycol ether 0.3g, graphite 75g, hydroxylmethyl cellulose
Plain sodium 15g.
Step 2：Graphite, sodium cellulose glycolate and water are sufficiently mixed, obtain the first slurry.
Step 3：Polyglycol ether, modified starch are added in the first slurry, are sufficiently stirred.
Remaining step is the same as the step 4-6 in embodiment 1.
Comparative example 1
Comparative example 1 does not add dispersant with the difference is that only for embodiment 3, other raw materials, raw material dosage and preparation
Process is same as Example 3.
Comparative example 2
Step 1：Dispersant is not weighed, the weighing of other raw materials is the same as the step 1 in embodiment 3.
Step 2：Carbon fiber is disperseed into 5min, power 2kw in water using ultrasonic wave.
Remaining step is the same as the step 3-6 in embodiment 3.
Comparative example 3
Step 1：Dispersant is not weighed, the weighing of other raw materials is the same as the step 1 in embodiment 3.
Step 2：Carbon fiber is disperseed into 30min, power 3kw in water using ultrasonic wave.
Remaining step is the same as the step 3-6 in embodiment 3.
The performance test of Thistle board
The absorbing property of Thistle board sample utilizes HP-8720B Network Analyzers according to national standard GJB2038-94 requirements
Tested using arched reflective method, test result is as shown in table 1.Test scope is 2-18GHz, step-length 0.2GHz.
The bending failure load of Thistle board sample measures according to national standard GB/T 25998-2010 method of testings, wherein
Bend resistance intensity improving rate is for the blank sample of absorbing material is not added, and test result is as shown in table 1.
Table 1
| Test scope/GHz | Maximum absorption peak/dB | Bend resistance intensity improving rate/% | |
| Embodiment 1 | 2-18 | -5 | 0 |
| Embodiment 2 | 2-18 | -10 | 15 |
| Embodiment 3 | 2-18 | -12 | 10 |
| Embodiment 4 | 2-18 | -12 | -2 |
| Embodiment 5 | 2-18 | -15 | -5 |
| Comparative example 1 | 2-18 | -3 | 0 |
| Comparative example 2 | 2-18 | -11 | 6 |
| Comparative example 3 | 2-18 | -12 | 10 |
It can be seen that according to the data of table 1：
(1) compared to comparative example 1, obtained by the absorbing property of the embodiment 1-5 and comparative example 2-3 Thistle boards prepared
Improve, can effective anti-electromagnetic radiation, illustrate the suitable dispersant of addition or suction ripple material can be improved using ultrasonic disperse
The dispersive property of material, but use ultrasonic disperse to need longer jitter time and larger power to can be only achieved a small amount of suction of addition
Wave material is with regard to the dispersion effect that can reach, and the extension of ultrasonic disperse time and the increase of ultrasonic power can improve production cost,
Such as in order that maximum absorption peak brings up to the -12dB of comparative example 3, it is necessary to by the ultrasonic disperse time by the -11dB of comparative example 2
Extend 5 times, ultrasonic power increases 0.5 times, and this is not intended to see in the large-scale production of Thistle board.The opposing party
Face, because equipment limit is also difficult to use ultrasonic disperse in the large-scale production of Thistle board.
(2) embodiment 1-5 data explanation, after being combined with the dispersant selected by the application, absorbing material carbon fiber or
Graphite can improve the absorbing property of Thistle board.
But the dosage of absorbing material is not The more the better.For the absorbing material carbon fiber used in the embodiment of the present application
For, with increasing for carbon fiber dosage, the trend for first improving and reducing afterwards is presented in the absorbing property of prepared Thistle board.
While not wishing to be bound by theory, but present inventor is it is thought that because when the dosage of carbon fiber is suitable, its
The random distribution in Thistle board, continuous conductive network can not be formed, with carbon fiber during Electromagnetic Field as eelctric dipole
Son and form harmonic oscillator, produce resonance with incident electromagnetic wave, produce higher dispersion current, have to electromagnetic wave and preferably absorb
Effect.If carbon fiber dosage is excessive, electric conductor is easily formed in Thistle board, reflex easily is produced to electromagnetic wave,
Dispersion current reduces, and makes the wave-absorbing effect of Thistle board reduce on the contrary., again can be because dosage deficiency if carbon fiber dosage is too small
And it is difficult to reach preferable wave-absorbing effect.Thus, the suitable amounts of carbon fiber are the 1%-5% of building gypsum plaster weight.For
For the absorbing material graphite used in the embodiment of the present application, with increasing for graphite levels, prepared Thistle board
Absorbing property improves constantly, but the strength character of sheet material then constantly declines, on the premise of timber intensity is ensured, the dosage of graphite
It should control within the 15% of building gypsum plaster weight.
It will be understood by those within the art that in the range of technical scheme is not departed from, when available
Disclosed above technology contents and make a little change, modification with develop equivalent variations be the application equivalence enforcement
Example；Meanwhile change, modification and the differentiation of any equivalent variations that all substantial technologicals according to the application are made to above example
Deng in the range of being defined by the claims of the application.
Claims (10)
1. a kind of Thistle board of anti-electromagnetic radiation, the Thistle board contains absorbing material and dispersant, described scattered
Agent is the one or more in cellulose dispersant, PAMA and polyethylene glycol oxide.
2. Thistle board according to claim 1, wherein, the cellulose dispersant is methylcellulose, carboxymethyl
One or more in sodium cellulosate, sodium cellulose glycolate and hydroxyethyl cellulose.
3. Thistle board according to claim 1, wherein, the absorbing material is carbon system absorbing material, the suction of ceramics system
One or more in wave material and iron system absorbing material.
4. Thistle board according to claim 3, wherein, carbon system absorbing material be carbon fiber, carbon black, graphite and
One or more in CNT.
5. Thistle board according to claim 3, wherein, ceramics system absorbing material is carborundum, silicon nitride, titanium
One or more in sour barium and alundum (Al2O3)；Iron system absorbing material is ferrite, iron carbonyl, polycrystalline iron fiber and surpassed
One or more in thin metal powder.
6. according to the Thistle board any one of claim 1-5, wherein, the Thistle board includes following weight
The each component of part：
7. Thistle board according to claim 6, wherein, the Thistle board includes each group of following parts by weight
Point：
8. the Thistle board according to claim 6 or 7, wherein, the foaming agent is lauryl sodium sulfate, dodecane
One or more in base benzene sulfonic acid sodium salt, polyglycol ether and gleditsia sinensis rosin acids.
9. a kind of method for the Thistle board for preparing the anti-electromagnetic radiation according to any one of claim 1-8, including
Following steps：
Absorbing material and dispersant are added to the water stirring, obtain the first slurry；
Modified starch and foaming agent are added into first slurry, building gypsum plaster is added after stirring, stirs, obtains the second slurry
Material；
By the second sizing material forming, drying, the Thistle board of the anti-electromagnetic radiation is obtained.
Between 10. according to the method for claim 9, the shaping by second slurry including being layered on two layers of mask paper,
Obtain wet plate；The wet plate is dried to constant weight by the drying at a temperature of being included in 110-160 DEG C.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108215386A (en) * | 2018-04-10 | 2018-06-29 | 佛山市万善环保科技有限公司 | A kind of anti-electromagnetic radiation Thistle board and preparation method thereof |
| CN108467248A (en) * | 2018-05-15 | 2018-08-31 | 合肥语林装饰工程有限公司 | Has the light gypsum board and preparation method thereof of electro-magnetic screen function |
| CN110407548A (en) * | 2019-06-21 | 2019-11-05 | 邓道美 | A kind of preparation method of electromagnetic wave absorbability composite gypsum material |
| CN110655367A (en) * | 2019-11-06 | 2020-01-07 | 中国人民解放军空军工程大学 | Impact-resistant compressed carbon fiber polymer latex powder composite modified concrete |
| CN111606650A (en) * | 2019-04-29 | 2020-09-01 | 中建材创新科技研究院有限公司 | Heat-conducting paper-surface gypsum board and preparation method thereof |
| WO2022017302A1 (en) * | 2020-07-23 | 2022-01-27 | 中建材创新科技研究院有限公司 | Paper faced gypsum board and preparation method therefor |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101549981A (en) * | 2008-04-01 | 2009-10-07 | 北新集团建材股份有限公司 | Phase-change energy-saving paper-surface plasterboard and preparation method |
| CN102211907A (en) * | 2011-03-03 | 2011-10-12 | 朱奎 | Gypsum plate capable of resisting electromagnetic radiation |
| CN103923337A (en) * | 2014-04-30 | 2014-07-16 | 湖南兆恒材料科技有限公司 | Composite polymethacrylimide foam wave absorption material |
| CN103964802A (en) * | 2014-04-10 | 2014-08-06 | 北京工业大学 | Microwave absorbing gypsum board and preparation method thereof |
| CN104355667A (en) * | 2014-10-27 | 2015-02-18 | 浙江建设职业技术学院 | Bamboo carbon fiber gypsum board and preparation method thereof |
| CN104563316A (en) * | 2013-10-17 | 2015-04-29 | 北新集团建材股份有限公司 | Mineral wool sound absorbing board for preventing electromagnetic radiation and preparation method thereof |
| CN104628348A (en) * | 2013-11-13 | 2015-05-20 | 北新集团建材股份有限公司 | Water-repellent paper-surface plasterboard and preparation method thereof |
| CN105000853A (en) * | 2015-05-14 | 2015-10-28 | 中国建筑材料科学研究总院 | Gypsum board with electromagnetic wave absorption function and manufacturing method thereof |
| CN105152617A (en) * | 2015-09-06 | 2015-12-16 | 孙小力 | Gypsum plaster board produced by utilizing negative ion powder and preparation method |
| CN105275106A (en) * | 2015-11-05 | 2016-01-27 | 中国建筑材料科学研究总院 | Anti-electromagnetic radiation building |
-
2016
- 2016-05-25 CN CN201610352751.9A patent/CN107434389A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101549981A (en) * | 2008-04-01 | 2009-10-07 | 北新集团建材股份有限公司 | Phase-change energy-saving paper-surface plasterboard and preparation method |
| CN102211907A (en) * | 2011-03-03 | 2011-10-12 | 朱奎 | Gypsum plate capable of resisting electromagnetic radiation |
| CN104563316A (en) * | 2013-10-17 | 2015-04-29 | 北新集团建材股份有限公司 | Mineral wool sound absorbing board for preventing electromagnetic radiation and preparation method thereof |
| CN104628348A (en) * | 2013-11-13 | 2015-05-20 | 北新集团建材股份有限公司 | Water-repellent paper-surface plasterboard and preparation method thereof |
| CN103964802A (en) * | 2014-04-10 | 2014-08-06 | 北京工业大学 | Microwave absorbing gypsum board and preparation method thereof |
| CN103923337A (en) * | 2014-04-30 | 2014-07-16 | 湖南兆恒材料科技有限公司 | Composite polymethacrylimide foam wave absorption material |
| CN104355667A (en) * | 2014-10-27 | 2015-02-18 | 浙江建设职业技术学院 | Bamboo carbon fiber gypsum board and preparation method thereof |
| CN105000853A (en) * | 2015-05-14 | 2015-10-28 | 中国建筑材料科学研究总院 | Gypsum board with electromagnetic wave absorption function and manufacturing method thereof |
| CN105152617A (en) * | 2015-09-06 | 2015-12-16 | 孙小力 | Gypsum plaster board produced by utilizing negative ion powder and preparation method |
| CN105275106A (en) * | 2015-11-05 | 2016-01-27 | 中国建筑材料科学研究总院 | Anti-electromagnetic radiation building |
Non-Patent Citations (2)
| Title |
|---|
| 安郁琴等: "《制浆造纸助剂》", 31 August 2012, 中国轻工业出版社 * |
| 袁林等: "《绿色耐火材料》", 31 January 2015, 中国建材工业出版社 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108215386A (en) * | 2018-04-10 | 2018-06-29 | 佛山市万善环保科技有限公司 | A kind of anti-electromagnetic radiation Thistle board and preparation method thereof |
| CN108215386B (en) * | 2018-04-10 | 2021-01-26 | 泰山石膏（襄阳）有限公司 | Electromagnetic radiation preventing gypsum plaster board and preparation method thereof |
| CN108467248A (en) * | 2018-05-15 | 2018-08-31 | 合肥语林装饰工程有限公司 | Has the light gypsum board and preparation method thereof of electro-magnetic screen function |
| CN111606650A (en) * | 2019-04-29 | 2020-09-01 | 中建材创新科技研究院有限公司 | Heat-conducting paper-surface gypsum board and preparation method thereof |
| CN110407548A (en) * | 2019-06-21 | 2019-11-05 | 邓道美 | A kind of preparation method of electromagnetic wave absorbability composite gypsum material |
| CN110407548B (en) * | 2019-06-21 | 2023-08-29 | 黄梅龙源石膏有限公司 | Preparation method of electromagnetic wave absorption gypsum composite material |
| CN110655367A (en) * | 2019-11-06 | 2020-01-07 | 中国人民解放军空军工程大学 | Impact-resistant compressed carbon fiber polymer latex powder composite modified concrete |
| WO2022017302A1 (en) * | 2020-07-23 | 2022-01-27 | 中建材创新科技研究院有限公司 | Paper faced gypsum board and preparation method therefor |
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Application publication date: 20171205 |