CN105924618A - Electric-meter-box electromagnetic wave absorbing layer based on flower-shaped carbonyl iron particles and preparing method - Google Patents
Electric-meter-box electromagnetic wave absorbing layer based on flower-shaped carbonyl iron particles and preparing method Download PDFInfo
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- CN105924618A CN105924618A CN201610325328.XA CN201610325328A CN105924618A CN 105924618 A CN105924618 A CN 105924618A CN 201610325328 A CN201610325328 A CN 201610325328A CN 105924618 A CN105924618 A CN 105924618A
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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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/36—Hydroxylated esters of higher fatty acids
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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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
- C08K7/00—Use of ingredients characterised by shape
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- C—CHEMISTRY; METALLURGY
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Abstract
The invention discloses a preparing method of an electric-meter-box electromagnetic wave absorbing layer based on flower-shaped carbonyl iron particles. The preparing method includes the steps that a proper quantity of reactants is taken, wherein the reactants include a reducing agent, iron salt, a stabilizing agent, a complexing agent and a PH regulating agent; the reducing agent and the PH regulating agent are dissolved into deionized water to form a reducing-agent mixed solution under the magnetic stirring effect; the iron salt, the stabilizing agent and the complexing agent are added into deionized water, and the mixture is stirred to form an iron-salt mixed solution; the reducing-agent mixed solution and the iron-salt mixed solution are dropped into a chemical plating reaction tank to be fully reacted; the reacted product is collected with a magnet, cleaned and dried, and the iron nanowire particles are obtained. The iron nanowire particles generated with the method are a nanowire-shaped ferromagnetic wave-absorbing material with the high electromagnetic wave-absorbing effect and stable performance; by means of the nanowire-shaped iron particles, a high anisotropism field is achieved, higher magnetic resonance frequency is brought, eddy-current losses can be reduced, and the good electromagnetic wave-absorbing effect is achieved within the wider frequency range.
Description
Technical field
The present invention relates to Application of Power Metering Instruments field, a kind of preparation method based on Fe nanowire particle.
Background technology
Along with economy and the raising of living standards of the people, various novel electrical equipments become the required of people's daily life
Product, which results in the people's quick increase to need for electricity amount；It addition, along with the industrialized fast development of Chinese society
Industrial electricity also increases sharply, and commercial power also obtains fast development.Under this background premise, many individuals and enterprise
Industry carries out electricity filching behavior under the ordering about of interests.At our developing china family, electricity filching behavior is to allow power supply department at different levels
The problem of headache.Electricity filching behavior not only allows power supply department benefit damage, also brings serious safety to Electrical Safety simultaneously
Hidden danger, allows national wealth suffer a loss, and the national loss that China causes because of stealing every year according to statistics is more than 10,000,000,000 yuan of people
Coin, and the gray zone that electricity filching behavior has become as China's law is difficult to supervise.Now with science and technology quick
Development, various stealing technology have also been obtained constantly lifting, electricity filching means the most gradually variation, is such as drawn by original private
Disorderly connect without table electricity consumption, walk around electric energy meter, private opening ammeter wire box seal, damage electric energy meter and metering mutual inductance use
Electricity etc. develop into utilize high technology equipment carry out intelligent stealing as use the device of falling table stealing, use transposition mode stealing and
Wireless remote control mode carries out stealing etc..
The CPU of ammeter is disturbed by the high-power wireless signal utilizing electricity filching device, makes ammeter cisco unity malfunction,
Disregarding or few quantity calculation, also can recover ammeter metering at any time, this stealing electricity method operating time is short, and disguise is very strong,
Just can reach to disturb the purpose of ammeter at table case emission high-power signal, be not required to change power equipment and metering device
Any part, does not the most stay any vestige, even if making stealing inspector find stealing at short notice, also without
Legal, electric energy meter can only be changed, and electric flux is remedied difficult.Some power supply departments are used to enable overall monitor
Family, investment substantial contribution is mounted with long distance control system, but finds after application, because above-mentioned stealing electricity method makes ammeter itself
Few quantity calculation, system cannot judge that it is that load reduces or electricity filching behavior at all, i.e. enable judge its just in stealing,
Go user's on-site verification at once, also because of its electrical burglary operating time short (only needing several seconds), when inspector arrives in,
Or the clue of any stealing cannot be found.Owing to this high-tech intellectuality stealing mode electric power system be there is no effectively
Strick precaution mode, result causes it in some local extension rapidly, causes line loss to raise, lose huge.
Magnetic screen is a kind of very effective way preventing magnetic interference, therefore apply novel anti-electromagnetic interference material in
Meter shell of electric energy meter is the most necessary to ensure the accuracy of metering.
Summary of the invention
It is an object of the invention to provide a kind of based on flower-shaped carbonyl iron particles ammeter box electromagnetic wave absorption layer and preparation method,
Can be applicable in anti-interference electricity meter；This particle realizes by being compounded to form electromagnetic wave absorption layer with macromolecule matrix
Batch meter and the antijamming capability of meter shell of electric energy meter.
The invention provides a kind of based on flower-shaped carbonyl iron particles ammeter box electromagnetic wave absorption layer preparation method, including following step
Rapid:
S1: take appropriate reactant, described reactant includes polyalcohol, flower-shaped carbonyl iron particles, diisocyanate, benefit
Strong agent, organo-metallic catalyst, accelerator and stabilizer；
S2: polyalcohol is dried 30～60 minutes under the vacuum that temperature is 90～130 DEG C；
S3: after stirring by the percentage by weight flower-shaped carbonyl iron particles of addition set and reinforcing agent, by the weight set
After amount percentage adds diisocyanate and organo-metallic catalyst, be heated to 80～90 DEG C of continuously stirred reactions 10～
20 minutes；
S4: add accelerator and stabilizer by the percentage by weight set, after being again stirring for uniformly temperature be 80～
After 100 DEG C of reactions 20～30 minutes, the mixtures that reaction obtained are poured in the grinding tool that thickness is 2mm, in solidification 3～
Obtain being applied to the electromagnetic wave absorption layer of anti-interference ammeter box after 4 days.
Further, described polyalcohol be polyethylene glycol, 1,2-PD, BDO, butadiene polyalcohol or
At least one in castor oil；
Described diisocyanate is methyl diphenylene diisocyanate MDI, toluene di-isocyanate(TDI) TDI, different to benzene two
Cyanate PPDI, 1,5-naphthalene diisocyanate NDI, hexamethylene diisocyanate HDI, dimethyl diphenyl two isocyanic acid
At least one in ester TODI, IPDI IPDI；
Described reinforcing agent is at least one in mica, barium sulfate, kaolin, calcium silicates, montmorillonite or wollastonite；
Described organo-metallic catalyst is dibutyl tin laurate, tin dilaurate dioctyl tin, two neodecanoic acid dimethyl
At least one in tin or stannous octoate；
Described accelerator is octadecyl alcolol and/or atoleine；
Described stabilizer is di-iron trioxide, ferroso-ferric oxide, chrome green, lead orthoplumbate, zinc oxide or two
At least one in titanium oxide.
Further, the percentage by weight of described each reactant feed is as follows: polyalcohol 11%～75%, flower-shaped carbonyl iron
Powder 10%～80%, diisocyanate 1%～6.5%, reinforcing agent 7%～20%, organo-metallic catalyst 0.1%～0.35%,
Accelerator 0.1%～0.4% and stabilizer 0.1%～0.3%.
Further, the percentage by weight of described each reactant feed is as follows: polyalcohol 22.4%, flower-shaped carbonyl iron dust 60%,
Diisocyanate 2%, reinforcing agent 15%, organo-metallic catalyst 0.2%, accelerator 0.3% and stabilizer 0.1%.
Further, described polyalcohol is viscoelastic material, described elastomeric material by castor oil, flower-shaped carbonyl iron dust, two
Methylenebis phenyl isocyanate MDI, mica, stannous octoate, octadecyl alcolol and zinc oxide are prepared from.
Owing to have employed technique scheme, present invention have the advantage that:
The present invention provide based on flower-shaped carbonyl iron particles ammeter box electromagnetic wave absorption layer preparation method, pass through in-situ reducing
Method, compared to general chemical vapour deposition technique, hydro-thermal method, hydrothermal method etc., local reduction way has reaction condition letter
Single advantage, can be carried out at normal temperatures and pressures.And simple to preparing equipment requirement, therefore low cost, efficiency height.
Electromagnetic wave absorption layer is made as matrix by polyurethane.Polyurethane performance adjustable extent width, strong adaptability；Wear-resisting
Performance is good；Mechanical strength is big；Adhesive property is good；Good springiness, has excellent restoration, can be used for dynamic juncture；
Low temperature flexibility is good；Good weatherability, is up to 15～20 years service life；Oil resistivity is good；Resistance to biological aging；Price is fitted
Medium advantage.Use Fe nanowire particle to disclosure satisfy that with polyurethane making electromagnetic wave absorption layer and be applied to anti-interference ammeter box
Requirement.
Use grinding tool to pour and prepare electromagnetic wave absorption layer, it is possible to control to inhale the thickness of ripple layer easily, it is possible to realize extensive
Produce.Additionally, according to the shape of ammeter box, be cut out easily electromagnetic wave absorption layer dress to be attached to ammeter box.
Accompanying drawing explanation
The accompanying drawing of the present invention is described as follows.
Fig. 1 be the present invention based on flower-shaped carbonyl iron particles ammeter box electromagnetic wave absorption layer preparation method flow chart.
Fig. 2 is the scanning electron microscope (SEM) photograph based on flower-shaped carbonyl iron particles of the present invention.
Fig. 3 is the electromagnetic wave absorption curve based on flower-shaped carbonyl iron particles of the present invention.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Embodiment 1
The present embodiment provide based on flower-shaped carbonyl iron particles ammeter box electromagnetic wave absorption layer, by reducing agent, molysite, steady
Determine agent, complexing agent, surface conditioning agent, PH conditioning agent form.And it is applied to resist by the Fe nanowire prepared
The screen layer of interference ammeter box.
Described reducing agent be sodium borohydride, formaldehyde, sodium potassium tartrate tetrahydrate, hydrazine sulfate, glyoxal, dimethylamino borine,
At least one in Mitouer.
Described molysite is at least one in ferrous sulfate heptahydrate, iron chloride, ferric sulfate, frerrous chloride, ferric nitrate.
Described stabilizer is gelatin, diiodotyrosine, dodecyl vinegar propylhomoserin, cystine, cysteine, diformazan
At least one in base two sulphur carbamate.
Described complexing agent is polyvinylpyrrolidone (PVP), sodium ammonium triacetate (NTA), edetate
In (EDETATE SODIUM or four sodium), diethylenetriamine pentacarboxylic acid salt (DTPA), ethylenediamine tetraacetic methene sodium phosphate (EDTMPS)
At least one.
Described surface conditioning agent is at least one in hydrochloric acid, nitric acid, sulfuric acid.
Described PH conditioning agent is at least one in sodium acid carbonate, sodium carbonate, NaOH, lime.
The concentration of described each reactant is as follows: reducing agent 1～2mol/L, molysite 0.05～0.1mol/L, stabilizer
0.02～0.04mol/L, complexing agent 0.001～0.002mol/L, PH conditioning agent 0.06～0.10mol/L.
The preferred concentration of described each reactant is as follows: reducing agent 1.2mol/L, molysite 0.05mol/L, stabilizer
0.02mol/L, complexing agent 0.0015mol/L, PH conditioning agent 0.06mol/L.
Described Fe nanowire is preferably by sodium borohydride, ferrous sulfate heptahydrate, gelatin, polyvinylpyrrolidone (PVP)
It is prepared from NaOH reaction.
The described preparation method being applied to anti-interference ammeter box Fe nanowire, comprises the steps:
A. reducing agent and pH value conditioning agent are dissolved in deionized water and under magnetic agitation effect, form reducing agent and mix
Close solution；
B. molysite and stabilizer, complexing agent added in deionized water and stir formation molysite mixed solution；
C. reducing agent mixed solution and molysite mixed solution are instilled electroless plating reaction groove, fully react；
D. collect the product of reaction with magnet and be carried out and be dried, i.e. can get Fe nanowire particle.
Prepared Fe nanowire particle is mixed to form with polyurethane by a certain percentage electromagnetic wave absorption layer.
Described electromagnetic wave absorption layer, is urged by polyalcohol, Fe nanowire particle, diisocyanate, reinforcing agent, organic metal
Agent, accelerator, stabilizer are prepared from.
Described polyalcohol is in polyethylene glycol, 1,2-PD, BDO, butadiene polyalcohol or castor oil
At least one；
Described diisocyanate is methyl diphenylene diisocyanate MDI, toluene di-isocyanate(TDI) TDI, different to benzene two
Cyanate PPDI, 1,5-naphthalene diisocyanate NDI, hexamethylene diisocyanate HDI, dimethyl diphenyl two isocyanic acid
At least one in ester TODI, IPDI IPDI；
Described reinforcing agent is at least one in mica, barium sulfate, kaolin, calcium silicates, montmorillonite or wollastonite；
Described organo-metallic catalyst is dibutyl tin laurate, tin dilaurate dioctyl tin, two neodecanoic acid dimethyl
At least one in tin or stannous octoate；
Described accelerator is octadecyl alcolol and/or atoleine；
Described stabilizer is di-iron trioxide, ferroso-ferric oxide, chrome green, lead orthoplumbate, zinc oxide or two
At least one in titanium oxide.
The percentage by weight of the described each raw material of electromagnetic wave absorption layer is as follows: polyalcohol 11%～75%, Fe nanowire particle
10%～80%, diisocyanate 1%～6.5%, reinforcing agent 7%～20%, organo-metallic catalyst 0.1%～0.35%, promote
Enter agent 0.1%～0.4%, stabilizer 0.1%～0.3%.
The percentage by weight of each raw material of electromagnetic wave absorption layer is as follows: polyalcohol 22.4%, Fe nanowire particle 60%, and two is different
Cyanate 2%, reinforcing agent 15%, organo-metallic catalyst 0.2%, accelerator 0.3%, stabilizer 0.1%.
Or according to following percentage by weight selection reactant feed:
The optimization percentage by weight of described each raw material is as follows: polyalcohol 30%, wave absorbing agent particle 80%, diisocyanate
5%, reinforcing agent 18%, organo-metallic catalyst 0.15%, accelerator 0.25%, stabilizer 0.25%.
Described suction ripple layer optimization is prepared as by castor oil, plating iron Graphene particle, methyl diphenylene diisocyanate
MDI, mica, stannous octoate, octadecyl alcolol and zinc oxide are prepared from.
Described viscoelastic material by castor oil, Fe nanowire particle, methyl diphenylene diisocyanate MDI, mica,
Stannous octoate, octadecyl alcolol and zinc oxide are prepared from.
Described electromagnetic wave absorption layer preparation method, comprises the steps:
A, polyalcohol is 90～130 DEG C in temperature, is dried 30～60 minutes under vacuum-0.1MPa；
B, add after Fe nanowire particle and reinforcing agent stir by the percentage by weight set in step a, press
After the percentage by weight set adds diisocyanate and organo-metallic catalyst, be heated to 80～90 DEG C continuously stirred
React 10～20 minutes；The heating Optimal Temperature that the present embodiment provides may be configured as 85 DEG C；Reaction time optimal setting
It it is 15 minutes.
C, the percentage by weight addition accelerator pressing setting in step b and stabilizer, in temperature after being again stirring for uniformly
Degree is that 80～100 DEG C of mixtures reaction obtained after reacting 20～30 minutes pour the special grinding tool that thickness is 2mm into
In, take out after solidifying 3～4 days and can obtain being applied to the electromagnetic wave absorption layer of anti-interference ammeter box.
Prepared by anti-interference ammeter box based on Fe nanowire particle, by the electromagnetic wave absorption layer that obtains by anti-interference ammeter box
Design structure, is arranged in ammeter.
Embodiment 2
Prepare Fe nanowire particle
The Fe nanowire particle of the present embodiment, reactant includes following component by concentration: reducing agent (sodium borohydride)
1.2mol/L, molysite (ferrous sulfate heptahydrate) 0.05mol/L, stabilizer (gelatin) 0.02mol/L, complexing agent is (poly-
Vinylpyrrolidone (PVP)) 0.0015mol/L, PH conditioning agent (NaOH) 0.06mol/L.
Concrete operations are as follows:
A. reducing agent and pH value conditioning agent are dissolved in deionized water and under magnetic agitation effect, form reducing agent and mix
Close solution；
B. molysite and stabilizer, complexing agent added in deionized water and stir formation molysite mixed solution；
C. reducing agent mixed solution is instilled electroless plating reaction groove with molysite mixed solution, fully react；
D. collect the product of reaction with magnet and be carried out and be dried, obtaining Fe nanowire particle.
In the present embodiment, described reducing agent is sodium borohydride.Under equal operating condition, by sodium borohydride according to rubbing on an equal basis
You replace with formaldehyde, sodium potassium tartrate tetrahydrate, hydrazine sulfate, glyoxal, dimethylamino borine, Mitouer by specific concentration；Or
Replace with two kinds and above mixture according to equivalent weight percentage, all obtain qualified Fe nanowire particle.
In the present embodiment, described molysite is ferrous sulfate heptahydrate.Under equal operating condition, by ferrous sulfate heptahydrate according to
Equivalent molar concentration replaces with at least one in iron chloride, ferric sulfate, frerrous chloride, ferric nitrate, and it is qualified all to obtain
Fe nanowire particle.
In the present embodiment, described stabilizer is gelatin.Under equal operating condition, gelatin is replaced according to equivalent molar concentration
It is changed in diiodotyrosine, dodecyl vinegar propylhomoserin, cystine, cysteine, DMDS carbamate extremely
Few one, all obtains qualified Fe nanowire particle.
In the present embodiment, described complexing agent is polyvinylpyrrolidone (PVP).Under equal operating condition, will be poly-
Vinylpyrrolidone (PVP) replaces with sodium ammonium triacetate (NTA), edetate according to equivalent molar concentration
(EDETATE SODIUM or four sodium), diethylenetriamine pentacarboxylic acid salt (DTPA), ethylenediamine tetraacetic methene sodium phosphate (EDTMPS)；
Or replace with two kinds and above mixture according to equivalent molar concentration, all obtain qualified Fe nanowire particle.
In the present embodiment, described PH conditioning agent is NaOH.Under equal operating condition, by NaOH according to same
Equimolar concentration replaces with atoleine；Or according to equivalent weight percentage replace with sodium acid carbonate, sodium carbonate,
One in NaOH, lime, all obtains qualified Fe nanowire particle.
Embodiment 3
The electromagnetic wave absorption layer of the present embodiment, preparation raw materials by weight includes following component: polyalcohol (castor oil)
22.4%, Fe nanowire particle 60%, diisocyanate (methyl diphenylene diisocyanate) 2%, reinforcing agent (cloud
Female) 15%, organo-metallic catalyst (stannous octoate) 0.2%, accelerator (octadecyl alcolol) 0.3%, stabilizer (oxygen
Change zinc) 0.1%；
Concrete operations are as follows:
A. polyalcohol is dried process, removes moisture therein: weigh corresponding weight by setting weight percentage
Polyalcohol put into wide mouth beaker, then wide mouth beaker is placed in vacuum drying chamber, is 100 DEG C in temperature, vacuum
Degree, for being dried 45 minutes under-0.1MPa, obtains moisture free polyalcohol.
B., after stirring by the percentage by weight addition Fe nanowire particle set and reinforcing agent in step a, press
After the percentage by weight set adds diisocyanate and organo-metallic catalyst, it is heated to 88 DEG C of continuously stirred reactions
18 minutes.
C. in step b, accelerator and stabilizer are added by the percentage by weight set, in temperature after being again stirring for uniformly
Degree is that 90 DEG C of reactions are reacted the mixture obtained and poured in the special grinding tool that thickness is 2mm, in solidification after 25 minutes
Take out after 3～4 days and can obtain being applied to the electromagnetic wave absorption layer (see Fig. 3) of anti-interference ammeter box.
In the present embodiment, described polyalcohol is castor oil.Under equal operating condition, by castor oil according to equivalent weight hundred
Proportion by subtraction replaces with polyethylene glycol, 1,2-PD, BDO or butadiene polyalcohol；Or according to equal weight
Amount percentage replaces with two kinds and above mixture, all obtains qualified electromagnetic wave absorption layer, the product property of gained
There is no significant difference.
In the present embodiment, described diisocyanate is methyl diphenylene diisocyanate (MDI).Equal operating condition
Under, MDI is replaced with toluene di-isocyanate(TDI) (TDI), PPDI according to equal quality percentage
(PPDI), 1,5-naphthalene diisocyanate (NDI), hexamethylene diisocyanate (HDI), dimethyl diphenyl two isocyanide
At least one in acid esters (TODI) or IPDI (IPDI), all obtains qualified electromagnetic wave absorption
Layer, the product property of gained there is no significant difference.
In the present embodiment, described reinforcing agent is mica.Under equal operating condition, by mica according to equal quality percentage
Replace with at least one in barium sulfate, kaolin, calcium silicates, montmorillonite or wollastonite, all obtain qualified electromagnetism
Inhaling ripple layer, the product property of gained there is no significant difference.
In the present embodiment, described organo-metallic catalyst is stannous octoate.Under equal operating condition, stannous octoate is pressed
Dibutyl tin laurate, tin dilaurate dioctyl tin, two neodecanoic acid stannous methides are replaced with according to equal quality percentage；
Or replace with two kinds and above mixture according to equivalent weight percentage, all obtain qualified electromagnetic wave absorption layer,
The product property of gained there is no significant difference.
In the present embodiment, described accelerator is octadecyl alcolol.Under equal operating condition, by octadecyl alcolol according to equal quality hundred
Proportion by subtraction replaces with atoleine；Or replace with octadecyl alcolol and atoleine mixture according to equivalent weight percentage, all
Obtaining qualified electromagnetic wave absorption layer, the product property of gained there is no significant difference.
In the present embodiment, described stabilizer is zinc oxide.Under equal operating condition, by zinc oxide according to equal quality hundred
Proportion by subtraction replaces with in di-iron trioxide, ferroso-ferric oxide, chrome green, lead orthoplumbate or titanium dioxide at least
One, all obtains qualified electromagnetic wave absorption layer, and the product property of gained there is no significant difference.
Finally illustrating, above example is only in order to illustrate technical scheme and unrestricted, although with reference to relatively
The present invention has been described in detail by good embodiment, it will be understood by those within the art that, can be to the present invention
Technical scheme modify or equivalent, without deviating from objective and the scope of the technical program, it all should be contained
In the middle of protection scope of the present invention.
Claims (5)
1. one kind based on flower-shaped carbonyl iron particles ammeter box electromagnetic wave absorption layer preparation method, it is characterised in that: include with
Lower step:
S1: take appropriate reactant, described reactant includes polyalcohol, flower-shaped carbonyl iron particles, diisocyanate, benefit
Strong agent, organo-metallic catalyst, accelerator and stabilizer；
S2: polyalcohol is dried 30～60 minutes under the vacuum that temperature is 90～130 DEG C；
S3: after stirring by the percentage by weight flower-shaped carbonyl iron particles of addition set and reinforcing agent, by the weight set
After amount percentage adds diisocyanate and organo-metallic catalyst, be heated to 80～90 DEG C of continuously stirred reactions 10～
20 minutes；
S4: add accelerator and stabilizer by the percentage by weight set, after being again stirring for uniformly temperature be 80～
After 100 DEG C of reactions 20～30 minutes, the mixtures that reaction obtained are poured in the grinding tool that thickness is 2mm, in solidification 3～
Obtain being applied to the electromagnetic wave absorption layer of anti-interference ammeter box after 4 days.
2. electromagnetic wave absorption layer preparation method as claimed in claim 1, it is characterised in that: described polyalcohol is poly-second
At least one in glycol, 1,2-PD, BDO, butadiene polyalcohol or castor oil；
Described diisocyanate is methyl diphenylene diisocyanate MDI, toluene di-isocyanate(TDI) TDI, different to benzene two
Cyanate PPDI, 1,5-naphthalene diisocyanate NDI, hexamethylene diisocyanate HDI, dimethyl diphenyl two isocyanic acid
At least one in ester TODI, IPDI IPDI；
Described reinforcing agent is at least one in mica, barium sulfate, kaolin, calcium silicates, montmorillonite or wollastonite；
Described organo-metallic catalyst is dibutyl tin laurate, tin dilaurate dioctyl tin, two neodecanoic acid dimethyl
At least one in tin or stannous octoate；
Described accelerator is octadecyl alcolol and/or atoleine；
Described stabilizer is di-iron trioxide, ferroso-ferric oxide, chrome green, lead orthoplumbate, zinc oxide or two
At least one in titanium oxide.
3. electromagnetic wave absorption layer preparation method as claimed in claim 1, it is characterised in that described each reactant feed
Percentage by weight as follows: polyalcohol 11%～75%, flower-shaped carbonyl iron dust 10%～80%, diisocyanate 1%～6.5%,
Reinforcing agent 7%～20%, organo-metallic catalyst 0.1%～0.35%, accelerator 0.1%～0.4% and stabilizer 0.1%～0.3%.
4. electromagnetic wave absorption layer preparation method as claimed in claim 1, it is characterised in that described each reactant feed
Percentage by weight as follows: polyalcohol 22.4%, flower-shaped carbonyl iron dust 60%, diisocyanate 2%, reinforcing agent 15%,
Organo-metallic catalyst 0.2%, accelerator 0.3% and stabilizer 0.1%.
5. the electromagnetic wave absorption layer preparation method as described in Claims 1 to 4, it is characterised in that described polyalcohol is viscous
Elastomeric material, described elastomeric material is by castor oil, flower-shaped carbonyl iron dust, methyl diphenylene diisocyanate MDI, cloud
Mother, stannous octoate, octadecyl alcolol and zinc oxide are prepared from.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610325328.XA CN105924618A (en) | 2016-05-17 | 2016-05-17 | Electric-meter-box electromagnetic wave absorbing layer based on flower-shaped carbonyl iron particles and preparing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610325328.XA CN105924618A (en) | 2016-05-17 | 2016-05-17 | Electric-meter-box electromagnetic wave absorbing layer based on flower-shaped carbonyl iron particles and preparing method |
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