CN101805152B - Environmental-protection and multiple-effect powder composite and production method thereof - Google Patents
Environmental-protection and multiple-effect powder composite and production method thereof Download PDFInfo
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- CN101805152B CN101805152B CN2009100056699A CN200910005669A CN101805152B CN 101805152 B CN101805152 B CN 101805152B CN 2009100056699 A CN2009100056699 A CN 2009100056699A CN 200910005669 A CN200910005669 A CN 200910005669A CN 101805152 B CN101805152 B CN 101805152B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The invention discloses an environmental-protection and multiple-effect powder composite and a production method thereof. The environmental-protection and multiple-effect powder composite is prepared by mixing cement, waste circuit board powder, resin, powder coating waste powder and mud volcano powder. The method for producing the environmental-protection and multiple-effect powder composite comprises the following steps of: recycling the waste circuit boards, removing the parts on the surface, cutting, crushing and separating to produce the waste circuit board powder; recycling the spraying waste powder generated in the powder coating operation to produce powder coating waste powder; recycling mud volcano slurry, crushing and drying to produce mud volcano powder; mixing the waste circuit board powder, the powder coating waste powder and the mud volcano powder together, adding the cement and resin, and uniformly mixing to obtain the environmental-protection and multiple-effect powder. The invention is widely applied to the places with the need of using environmental-protection and multiple-effect powder compositions and provides a good production method for producers.
Description
Technical field
The present invention relates to a kind of constituent and method of manufacture thereof of powder, especially relate to a kind of cement, waste printed circuit board powder, resin, powder body coating waste material powder and salse mud powder of comprising and mix the environmental protection powder that constitutes.
Background technology
The human now environment of being brought up, as if high-tech also be accompanied by high pollution, and along with going from bad to worse of environment, environmental consciousness comes back, and various countries get into the century that subtracts the carbon restriction, and human civilization will face maximum morals challenge.
When the mankind enjoy the comfort life and when civilization science and technology, but ignored high-tech chemistry product serious harm cause serious environmental issue to earth ecology.How to save the energy, and with the resource environment protection recycling utilization, let the resource rubbish of high economic worth can reach minimizing, stabilization, nothing and poison; Waste can be turned the foul and rotten into the rare and ethereal; Convert high performance material to and reclaim cycling and reutilization,, become the tendency of the day to reduce to the mankind and environmental impact; And for visible is following, certainly will will start the great revolution of an environmental protection.
Epoch are progressive, and scientific and technological prosperity adds economic pulsation, and information is at a tremendous pace; Electronics technology innovation product such as computingmachine, household electrical appliances, mobil phone, industrial instrumentation, automatic equipment, traffic, aviation, space ... or the like; Whole development widely has inseparable relation with electronic product, because the printed substrate in the electronics product, is the electronic package topmost supporting substrate that interconnects; And be the indispensable important carrier of functional performance; Therefore under the competition industry behavior of constantly creating and weeding out the old and bring forth the new, printed substrate output fast updating is like the mushrooms after rain grown up, and this shows that its waste quantity of deriving is obviously quite huge.
Human a large amount of extract that oil uses and to refine the output of resin manufacturing huge, not only cause oil to lack crisis and quicken, and flaw defective products and function are eliminated trade-in and more produced many wastes when making, the quantity that pile up like a mountain is difficult to be estimated.If can effectively handle the electron wastes recycling, will bring very big market requirement business opportunity.Circuit card is that epoxy resin, resol, bakelite, refractory fibre and heavy metal and number of chemical article are processed; The tool acid and alkali-resistance is difficult to degenerate resolution characteristic; Maybe will hole powder disorderly to stream, rivers and creeks and other places if use the method for burying to handle waste printed circuit board; Objectionable impurities causes very big harm with contaminate environment to ecology; If adopt combustion method to handle, then must cause atmospheric pollution, toxic gas will be fled everywhere and will be detrimental to health.
In addition; At present the powder body coating processing methods that adopt spray more in numerous product processing procedures, because in the coating process, the vaporific resin powder that spray gun sprays to the static product does not have method and is adsorbed in fully on the product workpiece; And the resin powder of absorption will not descend slowly and lightly in paint booth bottom formation powder scrap; These waste materials are the resin composition, and if no matter it as waste disposal, adopt the method for burying or combustion method all can produce pollution; But also pipeline of its recycling of no-trump and purposes exist at present, and so real storage is being wasted problem of resource very much.
The Greenhouse effect that carbonic acid gas produced rise the earth surface temperature year by year; Various natural disasters are more and more frequent, volcanic explosion tsunami probability is also along with increase; Melt on the iceberg makes that sea level rise, and the city will become marine ruins, and many low-lying or national will facing in island subjugate a nation.Transmissible disease is wreaked havoc and acid rain corrodes, and natural, ecological destroys or the like, all jeopardizes the existence of the mankind and plant-animal, and the whole world is just in the face of greatly test, and the anti-Buddhist of just walking back and forth that warms up is human third world war, a unprecedented great calamity that is about to face.
Human because of science and technology is great, also because of science and technology faces a crisis, how to stop great calamity to take place in order to avoid late; Become instant important topic, live in the global village everyone should use up a mental and physical efforts, set up the green energy structure system of a cover; Implement kind notion with the recycle of earth resource recovery, the plan of enforcement environmental protection net energy lets the environment recovery clean state; Promote human health, the harm of the mankind and environment is impacted, make that be everlasting in the green hill, the clear water permanent current to reduce in the future; It is sustainable to let the earth be able to, and this will be human important mission.
To the problems referred to above, how to develop and a kind ofly can be fully the scientific and technological industry waste material be filled a part environmental protection powder that reclaims cycling and reutilization, remain relevant industry in fact must make great efforts to think the target and the direction of breakthrough again.
In view of this, the inventor is active development research, and for improving above-mentioned deficiency, through the permanent research and experiment of making great efforts, development and Design goes out environmental-protection and multiple-effect powder composite of the present invention and method of manufacture thereof finally.
Summary of the invention
The technical problem that the present invention will solve provides a kind of multi-efficiency powder composition and method of manufacture thereof, can solve existing rejected material contaminate environment, prior art can't be fully with the problem of scientific and technological industry waste recovery cycling and reutilization.
For achieving the above object, the technical scheme that the present invention adopts is: a kind of environmental-protection and multiple-effect powder composite is made up of cement, waste printed circuit board powder, resin, powder body coating waste material powder and salse mud powder.
Include resol, epoxy resin, spun glass and aluminum metal in the said waste printed circuit board powder.
Gross weight with this multi-efficiency powder composition is calculated as 100%, and then wherein wherein any content range in this multi-efficiency powder composition of cement, waste printed circuit board powder, resin, powder body coating waste material powder, salse mud powder is 10% to 50%.
The particle diameter of said salse mud powder is between 100 to 500 nanometers.
A kind of method of making environmental-protection and multiple-effect powder composite, this method of manufacture comprises: reclaim waste printed circuit board, remove its surperficial part after cutting, blend the partition method means and process this waste printed circuit board powder; Reclaim the spraying waste material powder that the powder body coating operation produced and process this powder body coating waste material powder; Reclaim salse mud and impose pulverizing, dry means and process this salse mud powder; With this waste printed circuit board powder, powder body coating waste material powder, salse mud powder impose mix mixer means and add this cement, resin mixes mutually, promptly makes this environmental-protection and multiple-effect powder.
Wherein said salse mud powder can mix with this resin before carrying out said mixing mixer means in advance mutually, can prevent the sclerosis of in the process of storing, luming of this salse powder mud end.
The environmental-protection and multiple-effect powder composite that adopts aforesaid method to make; It is concrete uses to go up and can be widely used on the building engineering structure as a kind of coating, material for repairing or pouring material and make multiple building materials etc., but and then reach environmental benefit, become a kind of insulation of innovating the high physical and chemical performance of tool with refuse reclamation, heat insulation, insulation, sound-absorbing, waterproof, mildew-resistant, antirust, fire prevention, acid and alkali-resistance, Ginkgo Biloba Leaf Extract, again can increase structural strength and ageing-resistant, the diminishing catalysis of preserving moisture expansion, environmental protection and energy saving health paint and composition board body structure building materials, have plurality of advantages such as preferable industrial economy benefit.
Description of drawings
Fig. 1 is the constituent textBox figure of environmental-protection and multiple-effect powder of the present invention.
Fig. 2 is the method for manufacture textBox figure of environmental-protection and multiple-effect powder of the present invention.
Fig. 3 is an application implementation illustration one of the present invention.
Fig. 4 is an application implementation illustration two of the present invention.
Fig. 5 is an application implementation illustration three of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further explain.
Consult Fig. 1, be the preferred embodiment of a kind of environmental-protection and multiple-effect powder composite of the present invention and method of manufacture thereof, similarly embodiment only supplies the usefulness of explanation, in patented claim, does not receive the restriction of this structure; Said environmental-protection and multiple-effect powder composite comprises cement, waste printed circuit board powder, resin, powder body coating waste material powder and salse mud powder etc. and mixes formation.
Wherein, include resol, epoxy resin, spun glass and aluminum metal in the said waste printed circuit board powder.
Wherein, If calculate as 100% weight with the gross weight of this multi-efficiency powder composition; Then this wherein cement, waste printed circuit board powder, resin, powder body coating waste material powder, the wherein any content range in this multi-efficiency powder composition of salse mud powder be 10% to 50%, during use according to required in this per-cent in proportion the allotment get final product.
Wherein, the particle diameter of said salse mud powder is between 100 to 500 nanometers (Nanometer is called for short nm).
Consult Fig. 2, environmental-protection and multiple-effect powder composite according to the invention, its method of manufacture comprises:
(a) reclaim waste printed circuit board, remove its surperficial part after cutting, blend and adopt the density separation means and process this discarded electroplax powder;
(b) reclaim the spraying waste material powder that the powder body coating operation produced and process this powder body coating waste material powder;
(c) reclaim volcanic mud and impose pulverizing, dry means and process this salse mud powder;
(d) with this waste printed circuit board powder, powder body coating waste material powder, salse mud powder impose one set the mixing mixer means of proportioning and add this cement, resin mixes mutually, promptly makes this environmental-protection and multiple-effect powder.
Wherein, Said salse mud powder is before carrying out said mixing mixer means; Can mix mutually with powdered resin in advance; Or mixing the back mutually with liquid resin preserves, and so can exempt the exsiccant processing procedure, can prevent that this salse mud powder from lump to harden and reduce production costs in the process of storing.
As shown in Figure 3; On said environmental-protection and multiple-effect powder 10 concrete the application; Can become a kind of coating via the miscible mode of liquid state; The embodiment that sees through the coating of spray cloth or round brush is in buildings or building materials 20 (like plate body, applying cloth (skin), block matrix material etc.) surface, to reach the characteristic of the high physical and chemical performance of tool.
As shown in Figure 4; On said environmental-protection and multiple-effect powder 10 concrete the application; Also can be used as a material for repairing; In order to fill up the space 30 between dried cement sandstone, make it become that together then property is good, structure is tough and the high-quality Guardwall structures of tool high compact property, resistance to acids and bases and tool bacterinertness, insulation heat insulation heat preservation energy-saving.
As shown in Figure 5; On said environmental-protection and multiple-effect powder 10 concrete the application; Also can use as a kind of form material via the miscible mode of liquid state, a predeterminable mould 40 (or mezzanine space) injects these moulds 40 (or mezzanine space) with the liquid environmental-protection and multiple-effect powder 10 of this miscible one-tenth again; Treat to give the demoulding, three-dimensional arrangements such as a plastic block, cylinder, body, plate body, unrestrained plate, roofing tile after this environmental-protection and multiple-effect powder 10 dries up; Remove this; Said environmental-protection and multiple-effect powder 10 can see through also that the dipping means arranged net with bamboo mat, the rope made of hemp, spun glass is arranged net, shredded coconut meat palm fibre, straw, tNonwovens etc. combine; Flexible through seeing through hot pressing or means moulding one sheet materials such as roll extrusion, oven dry to increase; And these sheet materials also can have the daylighting effect because of its structure slot position, and the daylighting of a kind of environmental protection innovation combined type, the high-performance wave plate of heat insulation heat preservation energy-saving power saving or the green building material of different shape plate body structure can be provided.
Except that above-mentioned application implementation aspect; Environmental-protection and multiple-effect powder 10 according to the invention also the present Metallic corrugated sheet of instead, roofing tile, stone material, timber, pottery, plastic plate (skin), mix foam material, traditional protection property coating etc. such as earth, Baolilong, PS plate, PV, PE; Make into appearance surfaces aspects such as imitative stone material, imitative timber, imitative pottery; Improving the shortcoming of current material, as the shortcoming of Metallic corrugated sheet be thin not resistant to pressure, heavy rain knock produce noise, not acid and alkali-resistance be prone to get rusty leak, heat conductivity height, lightning risk, heat preservation and insulation are poor, aging is out of shape, sharply hurts sb.'s feelings etc.As the shortcoming of stone material be heaviness, transportation cost is high, construction is difficult for, high thermal conductivity, heat preservation and insulation is poor, the bad suction of water-repellancy is easy to change, can explosion during fire, the earthquake danger etc. of dropping.The shortcoming of timber be to fall trees with the harm earth and water funk, inflammable, be afraid of termite and often add formaldehyde when making the people is known from experience to cause cancer harm healthy etc.The shortcoming of pottery be engineering execute take a lot of work, high thermal conduction heat preservation and insulation is poor, danger is dropped in resistant to pressure collision, earthquake, the Tibetan dirt of magnetic seam is leaked etc.The shortcoming of plastic material be not environmental protection, not fire-resistant, resistant to pressure is yielding etc.The shortcoming of traditional protection property coating then is solvent and not environmental protection of formaldehyde, the problem that rust-inhibiting paint heavy metal ratio is too high, cost is expensive; And environmental-protection and multiple-effect powder according to the invention 10 is owing to possess following advantage and characteristic, so the present multiple material of instead and become the building materials of new generation.
Advantage of the present invention has:
1, the spy has the environmental benefit of refuse reclamation: because contained waste printed circuit board powder and the powder body coating waste material powder of the disclosed environmental-protection and multiple-effect powder of the present invention is the composition that recovery industry waste material utilizes again; Waste printed circuit board powder and powder body coating waste material powder; Present flourish along with the electron correlation product; Its discarded quantity reality is worked as huge and is difficult to counting; Waste that is caused and environmental issue just in time are the problems that present society and relevant unit extremely worry, so the present invention utilizes the design of waste printed circuit board powder and powder body coating waste material powder, because disclosed environmental-protection and multiple-effect powder can be widely used in the civil engineering structure engineering and building materials; When can be, and then reach the recycle the waste environmental benefit of cycling and reutilization of resource with waste printed circuit board powder and a large amount of recyclings of powder body coating waste material powder; And said salse mud also is the raw material that is generated in the environment of nature volcano, and its utilizability is still nobody's business at present; And, can't supply plantation to use, so for peripheral agricultural environment, belong to disaster in fact because of volcanic mud molecule exquisiteness tool stickiness sclerosis back as hard as flint; It is ecological to flow into rivers and creeks polluted water harm; So through design of the present invention, can gather volcanic mud in a large number and reduce its threat for peripheral agricultural environment, prevent to flow into the rivers and creeks polluted water and endanger ecotope.
2, the effect that has strong effect waterproof, fungi-proofing, anti-wall cancer; The dream that makes the user break away from percolating water wall cancer is had enough with worried: disclosed environmental-protection and multiple-effect powder includes the innovative design of waste printed circuit board powder through it; Since in this waste printed circuit board powder resinous molecule superfine little, can when construction, fill up existing micro-pore in the sand-cement slurry, and since resin do not absorb water; So it is mixed in sand-cement slurry and can significantly lowers the aqueous vapor perviousness; Can reduce the use of water-resisting agent in a large number, moreover because circuit card must be gone through antiacid alkaline purification in the original product manufacturing processed, so also will contain the acid and alkali-resistance composition in this waste printed circuit board powder; This makes advantage and the result of use of this environmental-protection and multiple-effect powder with waterproof antimildew and antibacterial and acid and alkali-resistance; So with this environmental-protection and multiple-effect powder during as the wall plaster material, it is acidproof, alkaline-resisting, corrosion-resistant to reach preferable high characteristic, and high-effect protection buildings and iron plate are corroded by acid rain; Prevent to get rusty and the anti-sea wind acid rain of weathering erosion effect, advance to prolong the work-ing life of buildings.
3, have structure-reinforced effect: disclosed environmental-protection and multiple-effect powder is through including the innovative design of waste printed circuit board powder, powder body coating waste material powder and salse mud powder; Since this waste printed circuit board powder and powder body coating waste material powder resinous molecule superfine little; And the molecule of this salse mud powder also is superfine little and tool viscous state; Can the time clog in the sand-cement slurry micro-pore in construction, produce ponding whereby and can strengthen the degree of compactness of structure, significantly improve the key knotting strength at aggregate interface; And but the refinforced cement face is followed effect; Event can prevent to become flexible, bulge phenomenon, simultaneously because this waste printed circuit board powder and powder body coating waste material powder lighter weight can make this environmental-protection and multiple-effect powder reach the advantage that light weight smoothly is more conducive to construct.
4, the effect that has the diminishing of preserving moisture: owing to all contain the not toner of water absorption character in the waste printed circuit board powder of disclosed environmental-protection and multiple-effect powder and the powder body coating waste material powder; So can reduce the usage quantity of water; Improve the excreting water phenomenon of sand-cement slurry; Can preferable performance characteristics be provided utmost point low water-cement ratio, more can improve the materialization property that sand-cement slurry is whitewashed; Also be that the present invention takes off the multifunctional powder spy and has retarding effect; Can effectively slow down cement setting time through being affectedly bashful of its consumption; And then can prevent that cement is because of undesired caused crack performances that condenses such as snap cure and dry shrinkage; Effectively overcome the bad and not good problem that causes of maintenance of construction, reach best materialization property.
5, has catalysis expansible effect: the waste printed circuit board powder of disclosed environmental-protection and multiple-effect powder; Since contain in the waste printed circuit board aluminium composition (annotate: this aluminium composition be the primary circuits plate residual composition; Its origin cause of formation is burst apart for avoiding circuit card to produce when being drilled with hole; So can fill up an aluminium sheet again in circuit board surface usually, so when drill bit drilled circuit card, also what can be brought some fines of aluminium sheet and residue in in the hole of circuit card); Can promote cement to reach hydration more completely; Slow down the snap cure of cement and shrink concave face and the crack performance that is caused, and then produce a kind of catalysis expansion effect, improve the benefit of whitewashing the planeness of face and reaching the raising construction quality.
6, have that high temperature resistant, heat resistanceheat resistant, anti-combustion, apyrous are strong, fire prevention and anti-ultraviolet effect: cement in the disclosed environmental-protection and multiple-effect powder and salse mud powder are the fire prevention composition; And after the said waste printed circuit board powder, resin, powder body coating waste material powder, volcano mud, cement polymerization finished product; After being heated, all can produce sclerosis; Also be not combustion-supporting composition; Therefore no matter environmental-protection and multiple-effect powder that the present invention takes off uses as sheet material, piece material or coating, all can be rated as extremely excellent fireproof building material; Wherein powder body coating waste material powder also has anti-ultraviolet effect again.
7, have preferable industrial economy benefit: since contained waste printed circuit board powder and the powder body coating waste material powder of disclosed environmental-protection and multiple-effect powder, salse mud powder, and obtaining of its material belongs to waste recovery; Cost is far below new material; And be traditional cheaply facility in order to the equipment of waste printed circuit board being processed powder, cut, blend, isolate, manufacturing cost can be reduced to minimum, so for the manufacturer; Can minimum cost create maximum and meet the product of user's demand most; And this powder body coating waste material powder composition also is a resin, so the consumption of said resin, cost can thereby subtract and fall, and this powder body coating waste material powder is based on the demand of application and produces; Having various color appears; This appears when the color that helps environmental-protection and multiple-effect powder of the present invention is abundant naturally, must not add colorant in addition and can reach, the whole real preferable industrial economy benefit that suits.
8, disclosed comprehensive environmental-protection and multiple-effect powder composite and made lagging material thereof; Have more that summer cooling, insulation in severe winter, power saving are many, the sound insulation of raining intercepts heavy rain and knocks the noise that iron sheet produces, the effect of the fungi-proofing anti-wall cancer of superpower effect waterproof, makes to break away from the dream of percolating water wall cancer with the person and have enough with worried, the while, high characteristic acid-fast alkali-proof was corrosion-resistant; High-effect protection buildings and iron plate are corroded by acid rain; Prevent to get rusty and weathering, the anti-fire of the anti-combustion of high temperature resistant heat resistanceheat resistant is strong, and secure is removed the scruple of inflammable foaming heat insulation material institute initiation fire; Full usefulness material; Create green building cool in summer and warm in winter, promote clean High Quality Environment, to enjoy healthy comfortable living space.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any those of ordinary skill in the art are in the technical scope that the present invention disclosed; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (5)
1. multi-efficiency powder composition is characterized in that: said multi-efficiency powder composition comprises cement, waste printed circuit board powder, resin, powder body coating waste material powder and salse mud powder and constitutes;
Gross weight with this multi-efficiency powder composition is calculated as 100%, and then wherein any content range in this multi-efficiency powder composition of cement, waste printed circuit board powder, resin, powder body coating waste material powder, salse mud powder is 10% to 50%.
2. multi-efficiency powder composition according to claim 1 is characterized in that: include resol, epoxy resin, spun glass and aluminum metal in the said waste printed circuit board powder.
3. multi-efficiency powder composition according to claim 1 is characterized in that: the particle diameter of said salse mud powder is between 100 to 500 nanometers.
4. method of making each described multi-efficiency powder composition of claim 1-3, it is characterized in that: said method of manufacture comprises:
Reclaim waste printed circuit board, remove its surperficial part after cutting, blend the partition method means and process this waste printed circuit board powder;
Reclaim the spraying waste material powder that the powder body coating operation produced and process this powder body coating waste material powder;
Reclaim salse mud and impose pulverizing, dry means and process this salse mud powder;
With this waste printed circuit board powder, powder body coating waste material powder, salse mud powder impose mix mixer means and add this cement, resin mixes mutually, promptly makes this multi-efficiency powder composition.
5. the method for manufacturing multi-efficiency powder composition according to claim 4; It is characterized in that: wherein said salse mud powder is before carrying out said mixing mixer means; Can mix mutually with this resin in advance, can prevent the sclerosis of in the process of storing, luming of this salse powder mud end.
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| CN2009100056699A CN101805152B (en) | 2009-02-16 | 2009-02-16 | Environmental-protection and multiple-effect powder composite and production method thereof |
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| CN2009100056699A CN101805152B (en) | 2009-02-16 | 2009-02-16 | Environmental-protection and multiple-effect powder composite and production method thereof |
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| CN101805152B true CN101805152B (en) | 2012-11-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102276208A (en) * | 2011-06-29 | 2011-12-14 | 同济大学 | Method for preparing environment-friendly cement mortar by nonmetal powder of waste circuit board |
| CN102964109B (en) * | 2012-12-21 | 2013-09-11 | 清远新绿环建筑材料有限公司 | Production process of magnesium oxide ecological board |
| CN103130983B (en) * | 2013-01-25 | 2015-05-13 | 北京交通大学 | Environment-friendly plate material compounded by organic silicon modified epoxy resin and waste circuit board non-metallic powder |
| WO2015006987A1 (en) * | 2013-07-19 | 2015-01-22 | Su Taiyuan | Multi-effect powder composition and manufacturing method therefor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200356A (en) * | 2006-12-12 | 2008-06-18 | 王武添 | Multifunctional powder composition and polymer structure thereof |
| CN101255032A (en) * | 2007-03-02 | 2008-09-03 | 王武添 | Powder composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101200356A (en) * | 2006-12-12 | 2008-06-18 | 王武添 | Multifunctional powder composition and polymer structure thereof |
| CN101255032A (en) * | 2007-03-02 | 2008-09-03 | 王武添 | Powder composition |
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