CN102152373B - Zero-carbon high-fiber environment-friendly sheet synthesized by waste circuit board powder and production process thereof - Google Patents
Zero-carbon high-fiber environment-friendly sheet synthesized by waste circuit board powder and production process thereof Download PDFInfo
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- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The invention discloses a preparation process of a zero-carbon wood fiber environment-friendly sheet synthesized by waste circuit board powder. The pressing raw materials of the environment-friendly sheet comprise: circuit board recycled powder, wood fiber powder, a cross-linking agent, a waterproofing agent, and carbon filament fiber; the production process of the sheet comprises the following steps of: drying the circuit board recycled powder at a constant temperature; converting wood fiber auxiliary materials into wood fiber powder above 80 meshes, drying, and then stirring under 180 DEG C to form carbon fiber powder; adding a processing assistant and blending uniformly again; and feeding materials, paving pressing plates, pressurizing, standing, complementing pressure, and gently decompressing to produce the sheet. The pressure during the production process is controlled so that the sheet is stable in quality and high in intensity; the sheet synthesized by wood fiber powder obtained by recycling crop straw, bamboo and wood saw powder and the like with the waster circuit board powder can be sawn, drilled, processed, and shaped easily; furthermore, the sheet is excellent in waterproof and fireproof performances, and high in static bending strength; and the utilization of waste materials reaches the purposes of environmental protection and low carbon.
Description
Technical field
The present invention relates to a kind of environment-friendly sheet, relate in particular to a kind of manufacturing process of utilizing the synthetic zero carbon wood fibre environment-friendly sheet of useless circuit board powder.
Background technology
The raw material of tradition woodwork board making are timber, need the disafforestation resource, thereby cause soil erosion, and various natural calamities take place, and influence natural environment and ecological balanced growth, not environmental protection and effectively energy-saving and emission-reduction.This woodwork sheet material burst size of methanal is big, and meet the water capacity and be prone to expansion, distortion, crooked, mouldy, not corrosion-resistant, not acidproof, not alkaline-resisting, and inflammable.
Along with the high speed development in city all over the world; Need use a large amount of construction materials, the dalle that industry and building are used comprises that wooden deck, wooden multi-layer sheet, low middle-high density plate, particieboard or log board all do not use regenerated resources circulation recovery technology, therefore needs a large amount of disafforestation resources; Cause a large amount of timber resources overcut wastes; Excessively destroy ecological environment, make the disturbed ecological balance state that all is at present all over the world, natural calamities such as earthquake, mud-rock flow, floods, drought, snow disaster, sandstorm frequently take place; Global climate is risen suddenly warm, environmental pollution is more and more serious.The overcut forest reserves make disturbed ecological balance, soil erosion, and timber resources reduces, and soars thereby the woodwork prices of raw and semifnished materials are risen suddenly.And renewable wooden resources such as agricultural crop straw that the various places agricultural production forms and bamboo wood saw powder are not utilized effectively and landfill or burning, are unfavorable for the implementation of environmental protection low-carbon (LC).
Summary of the invention
Not enough to prior art, the technical problem that the present invention will solve provides a kind of manufacturing process of useless circuit board powder of utilization and the zero carbon wood fibre environment-friendly sheet that renewable wooden resource is synthesized of recyclable regenerative.
In order to overcome the prior art deficiency; The technical scheme that the present invention adopts is: a kind of manufacturing process of utilizing the synthetic zero carbon wood fibre environment-friendly sheet of useless circuit board powder; The compacting raw material of said environment-friendly sheet comprises the component that weight ratio is following: 1～69 part of circuit board reclaims powder, 1～70 part of wood fiber powder, 1～20 part of crosslinking agent; 1～10 part of waterproofing agent, 1～12 part of carbon filament fiber;
Said manufacturing process comprises the steps:
A, circuit board is reclaimed powder with vibrator screening and the assorted slag of magnetic metal, make its not conglomeration of raw material;
B, circuit board is reclaimed powder carry out dried, the moisture that control circuit board reclaims powder is no more than 3%, and the temperature in the control drying oven stirs drying in 125 ℃ constant temperature;
C, the wood fibre auxiliary material is carried out coarse crushing, and then pulverize to grind and make the wood fibre auxiliary material change into the above wood fiber powder of 80 orders, carry out moisture drying in the temperature environment more than 100 ℃ and handle, control its moisture 2%～4%; Under 180 ℃, mix wood fiber powder then and form the carbon fibre powder;
D, reclaim powder and carbon fibre powder mixing and stirring in proportion to circuit board, add processing aid evenly mixing once more in proportion; Said processing aid comprises crosslinking agent, waterproofing agent, carbon filament fiber, and said crosslinking agent is Lauxite colloidal sol or phenolic resins colloidal sol, and said waterproofing agent is one or more in paraffin, silicone oil, white oil, the middle palm wax;
E, the even constant speed feeding of mixed material is got into the system of mating formation; Shakeout raw material with putting down roller; Mixed material gets into the slab that is compressed to unified thickness behind the preformer, sends to deburring in length and breadth by conveyer belt, and then is transported to multi-daylight press sheet material is carried out the moulding pressurization; Pressurizeed 1 minute, the pressure of plate surface is reached more than the 10Mps, leave standstill and carry out ftercompction after 2 minutes again, ftercompction pressure reaches more than the 14Mps, the final vacuum pressure release in 5 minutes of ftercompction time remaining, and pressure leak process evenly successively decreases gently;
After f, compacting finish, pull out sheet material, carry out turnover panel and air cooling then and handle;
G, sanding are decided thick, quality inspection, heap plate warehouse-in.
As the improvement of such scheme, it is that waste printed circuit board or circuit board leftover pieces are disassembled the granular material of wearing into that said circuit board reclaims powder, or the circuit boring powder that directly reclaims.
As the improvement of such scheme, said wood fibre auxiliary material is agricultural crop straw, wooden saw powder or bamboo matter saw powder.
As the improvement of such scheme, in step e, the laminate of said multi-daylight press is with the heating of circulating heat conduction oil, and the conduction oil temperature of said laminate is controlled between 150 ℃ ~ 190 ℃.
For the environment-friendly sheet of recyclable regenerative is provided; The technical scheme that the present invention adopts is: a kind of synthetic zero carbon wood fibre environment-friendly sheet of useless circuit board powder that utilizes; The compacting raw material of said environment-friendly sheet comprises the component that weight ratio is following: 1～69 part of circuit board reclaims powder, 1～70 part of wood fiber powder, 1～20 part of crosslinking agent; 1～10 part of waterproofing agent, 1～12 part of carbon filament fiber.
As the improvement of such scheme, the compacting raw material of said environment-friendly sheet comprises the component that weight ratio is following: 50～69 parts of circuit boards reclaim powder, 10～20 parts of wood fiber powders, 5～10 parts of crosslinking agents, 1～2 part of waterproofing agent, 5～8 parts of carbon filament fibers.
As the improvement of such scheme, the compacting raw material of said environment-friendly sheet comprises the component that weight ratio is following: 1～69 part of circuit board reclaims powder, 1～70 part of wood fiber powder; 1～20 part of crosslinking agent, 1～10 part of waterproofing agent, 1～8 part of fireproof agent; 1～5 part of formaldehyde is caught and is caught agent; 1～12 part of carbon filament fiber, 1～5 part of curing agent, 1～5 part of antioxidant.
As the improvement of such scheme, the compacting raw material of said environment-friendly sheet comprises the component that weight ratio is following: 50～69 parts of circuit boards reclaim powder, 10～20 parts of wood fiber powders; 5～10 parts of crosslinking agents, 2～3 parts of waterproofing agents, 1～3 part of fireproof agent; 2～3 parts of formaldehyde are caught and are caught agent; 5～12 parts of carbon filament fibers, 1.5～2 parts of curing agent, 1.5～2 parts of antioxidant.
As the improvement of such scheme, the compacting raw material of said environment-friendly sheet comprises the component that weight ratio is following: 40～50 parts of circuit boards reclaim powder, 30～40 parts of wood fiber powders; 13～20 parts of crosslinking agents, 3～5 parts of waterproofing agents, 3～5 parts of fireproof agents; Formaldehyde is caught and is caught 2～3 parts of agent; 7～10 parts of carbon filament fibers, 1.5～2 parts in curing agent, 1.5～2 parts in antioxidant.
Improvement as such scheme; Said crosslinking agent is Lauxite colloidal sol or phenolic resins colloidal sol; Said waterproofing agent is one or more in paraffin, silicone oil, white oil, the middle palm wax; Said fireproof agent is that ammonium chloride, potash, carbon are joined one or more in the ammonium dihydrogen, and said formaldehyde is caught and caught agent is in imvite, melamine, the phenol one or more, and said carbon filament fiber is a glass fibre; Said curing agent is one or more in ammonium chloride, oxalic acid, phenolic aldehyde amine, polyetheramine, the fragrant fat amine, and said antioxidant is one or more in fragrant fat amine antioxidants, phenolic antioxidant, thioesters, the phosphite.
The invention has the beneficial effects as follows: the zero carbon wood fibre environment-friendly sheet manufacturing process of utilizing the circuit board powder that gives up to synthesize is sawed the wood fiber powder mixing of powder, the making of bamboo wood saw powder with the recovery powder of discarded circuit board and by various stalks or timber; And add various additive synthesis; With various material mixing evenly and through powerful pressure suppress waterproof, fire prevention, anti-expansion, anti-deformation, anti-bending, mildew-resistant, anticorrosion, acidproof, alkaline-resisting and formaldehyde discharges the synthetic zero carbon wood fibre environment-friendly sheet of the useless circuit board powder of the safety of limiting the quantity of utilization up to standard; Realized various waste materials are reclaimed the purpose of the circular regeneration of making sheet material; Avoid the overcut forest, help keeping and the natural environment rehabilitation and the ecological balance, reduce natural calamity; Stablize the sheet material price, reach the effect that the environmental protection low-carbon energy-saving reduces discharging.
The synthetic zero carbon wood fibre environment-friendly sheet of the useless circuit board powder of utilization of the present invention is with the recovery powder of discarded circuit board and the wood fiber powder mixing made by various stalks or timber saw powder, bamboo wood saw powder; And add various additive synthesis; With various material mixing evenly and through powerful pressure suppress waterproof, fire prevention, anti-expansion, anti-deformation, anti-bending, mildew-resistant, anticorrosion, acidproof, alkaline-resisting and formaldehyde discharges the synthetic zero carbon wood fibre environment-friendly sheet of the useless circuit board powder of the safety of limiting the quantity of utilization up to standard; Realized various waste materials are reclaimed the purpose of the circular regeneration of making sheet material; Avoid the overcut forest, help keeping and the natural environment rehabilitation and the ecological balance, reduce natural calamity; Stablize the sheet material price, reach the effect that the environmental protection low-carbon energy-saving reduces discharging.This sheet material can dig, can follow closely, can saw as timber, and is easy to process, and renewable recycling use.Added and short cut carbon filament fiber and the corresponding interior external carbuncle ability to bear that has improved sheet material of various composite assistant, improved impact strength and static strength, the MOR of sheet material simultaneously.
The specific embodiment
Specifically describe in the face of embodiment of the present invention down.
A kind of manufacturing process of utilizing the synthetic zero carbon wood fibre environment-friendly sheet of useless circuit board powder of the present invention, said manufacturing process comprises the steps:
A, circuit board is reclaimed powder with vibrator screening and the assorted slag of magnetic metal, make its not conglomeration of raw material.
B, circuit board is reclaimed powder carry out dried, the moisture that control circuit board reclaims powder is no more than 3%, and the temperature in the control drying oven stirs drying in 125 ℃ constant temperature, make material be convenient to even mixing.Dry run is preferably in the stirring type dryer tool carries out, and whipping process should use the alr mode of conversion from low speed to high speed, makes that mixing is more even.
C, the wood fibre auxiliary material is carried out coarse crushing, and then pulverize to grind and make the wood fibre auxiliary material change into the above wood fiber powder of 80 orders, carry out moisture drying in the temperature environment more than 100 ℃ and handle, control its moisture 2%～4%; Under 180 ℃, mix wood fiber powder then and form the carbon fibre powder.Thereby can using homogenizer to stir drying, whipping process can be mixed the carbon fibre powder that is easier to form the floor easily with other material generation crosslinked action; The carbon fibre powder that high-speed stirred obtains has pliability more, keeps its good toughness.Simultaneously also can add waterproofing agent, fireproof agent stirs, and prevents the high temperature material of burning, waterproofing agent is able to wood fiber powder is carried out premix, thereby wood fiber powder is formed better waterproof fireproofing protection.
D, reclaim powder and carbon fibre powder mixing and stirring in proportion to circuit board, add processing aid evenly mixing once more in proportion.Said processing aid comprises crosslinking agent, waterproofing agent, carbon filament fiber, and said crosslinking agent is Lauxite colloidal sol or phenolic resins colloidal sol, and said waterproofing agent is one or more in paraffin, silicone oil, white oil, the middle palm wax.Earlier primary raw material is evenly mixed, and then add processing aid, more evenly crosslinked action is closer thereby guarantee to mix between the primary raw material.Can add waterproofing agent earlier in the processing aid, in advance the wood fibre material formed the appearance protection.
E, the even constant speed feeding of mixed material is got into the system of mating formation; Shakeout raw material with putting down roller; Mixed material gets into the slab that is compressed to unified thickness behind the preformer, sends to deburring in length and breadth by conveyer belt, and then is transported to multi-daylight press sheet material is carried out the moulding pressurization; Pressurizeed 1 minute, the pressure of plate surface is reached more than the 10Mps, leave standstill and carry out ftercompction after 2 minutes again, ftercompction pressure reaches more than the 14Mps, the final vacuum pressure release in 5 minutes of ftercompction time remaining, and pressure leak process evenly successively decreases gently.Pressure process does not settle at one go, but the process of adherence pressure progressively makes that various interaction between component are tightr, has interactional buffer time simultaneously.Be provided with pressure maintaining period in the pressure process, supply raw materials, make the board quality of its formation more stable with the time of crosslinked action.Stress-relief process also is the process that progressively reduces pressure; Avoid rapid step-down to form the inconsistent sheet material explosion that causes of sheet material inside and outside pressure; Sheet material flaws such as the inconsistent or layering of the local performance of stealthy explosion of avoiding causing thus and sheet material; Further improve the quality of sheet material and uniformity, the stability of sheet material, make sheet material durable.
After f, compacting finish, pull out sheet material, carry out conventional making sheet operations such as turnover panel and air cooling processing then.
G, sanding are decided thick, quality inspection, heap plate warehouse-in.
More preferably, it is that waste printed circuit board or circuit board leftover pieces are disassembled the granular material of wearing into that said circuit board reclaims powder, or the circuit boring powder that directly reclaims.
Wherein, said processing aid can comprise also that fireproof agent, formaldehyde are caught and catches agent, curing agent, antioxidant; Said fireproof agent is that ammonium chloride, potash, carbon are joined one or more in the ammonium dihydrogen; Said formaldehyde is caught and caught agent is in imvite, melamine, the phenol one or more; Said curing agent is one or more in ammonium chloride, oxalic acid, phenolic aldehyde amine, polyetheramine, the fragrant fat amine, and said antioxidant is one or more in fragrant fat amine antioxidants, phenolic antioxidant, thioesters, the phosphite.
Along with the global electronic industrial expansion; Waste household appliances reclaims system and progressively sets up; Various places are set up the waste household appliances recovery center of disassembling accordingly and are disassembled waste electrical equipment, and electrical equipment is disassembled the back MAT'L recyclings such as plastics, metals, and harmful material of keeping under strict control is transferred to the relevant center processing of disposing; Remaining circuit board major part is made landfill disposal, the not enough science of such disposal options.Electronics industry produces the discarded leftover pieces of a large amount of circuit boards, extracts metal after most of enterprise directly becomes piece to burn to extract metallic copper or reclaim the leftover pieces fragmentation, PCB (circuit board) the direct landfill of powder residue or clear.Clear simultaneously or the copper-clad plate, the boring powder that also have the electronics industry production process to produce of landfill, so just produce the electronic wastes of discarding in a large number.Only CHINESE REGION all produces waste printed circuit board more than 5,000,000 tons every year, and the circuit board powder is the thermosetting fibre resin-oatmeal that is not easy to degrade, and directly discarded or landfill does not meet the requirement of energy-saving and emission-reduction.For the regenerated resources recycling provides abundant raw material sources; Utilize correlation technique of the present invention; Circuit board after disassembling waste electrical equipment and industrial waste circuit board reclaim; After employing electrostatic separation technique extraction metal after the circuit board fragmentation, directly press prescription provided by the invention to remaining circuit board powder as the main component synthetic plate.
More preferably, said wood fibre auxiliary material is agricultural crop straw, wooden saw powder or bamboo matter saw powder.
The annual agricultural crop straw output of China is several hundred million tons, comprises maize straw, wheat stalk, rice straw, bagasse and other agricultural crop straw.Along with the policy support of the whole world to agricultural, APEC member state carries out the technological cooperation that the comprehensive regeneration cycle waste resource of agricultural crop straw utilizes the aspect each other in order to promote Agriculture Ecological Environment Protection in own country.There are a large amount of crops in China; Like the maize straw in northeast, cotton stalk, North China and East China and the southern rice straw and the wheat stalk and very abundant of northwest with resources such as bagasse; And these residue agricultural crop straws all do not add and have utilized; All be direct landfill or burned on the field, burning process produces a large amount of sulfur dioxide bigger side effect is played in climate warming, environmental disruption, does not utilize the ecological balance.Yet agricultural crop straw all contains many lignocellulosic compositions, can regeneration cycle recycles, and can grind becomes clastic and become wood fiber powder, as the formula material of sheet material.
Produce a large amount of timber or bamboo wood saw powder in wood industry goods industries (furniture, floor) and the bamboo product industry production process; These saw powder are that wooden chip does not all have effectively regeneration recycling; Basically all be to do to burn or landfill disposal, not only waste resource, and contaminated environment.Present timber floor, laminated flooring are popular; But its common service life is about 3 to 5 years; Because these floor surfaces have overlayed fireprotection layer and have played fire-retardant effect, can't burn and can only handle after discarding as garbage loading embeading, increase the weight of the burden of environmental protection.And the wood powder that these waste and old consolidated floors can be made into more than 80 orders after through milled processed is a wood fiber powder, uses as the sheet material inserts.
Use agricultural crop straw, wooden saw powder or bamboo matter saw powder as the wood fibre auxiliary material; Be that recyclable waste resource avoids waste and avoids influencing environment; The weight that alleviates sheet material again improves the toughness and the intensity of sheet material; Near the performance of timber, make sheet material to saw and to bore, can carry out abnormity processing more, also can carry out special-shaped pressing plate.
More preferably; In step e, the laminate of said multilayer weight machine (being multi-daylight press) is with the heating of circulating heat conduction oil, and the conduction oil temperature of said laminate is controlled between 150 ℃ ~ 190 ℃; Make laminate continue to keep higher temperature; Guarantee the temperature of pressing plate, use the oil that flows to heat and to make each position of laminate receive thermal balance, avoid each position excessive temperature differentials of laminate to influence board materials production and board quality.
For the environment-friendly sheet of recyclable regenerative is provided; The material matching that the present invention adopts is: a kind of synthetic zero carbon wood fibre environment-friendly sheet of useless circuit board powder that utilizes; The compacting raw material of said environment-friendly sheet comprises the component that weight ratio is following: 1～69 part of circuit board reclaims powder, 1～70 part of wood fiber powder, 1～20 part of crosslinking agent; 1～10 part of waterproofing agent, 1～12 part of carbon filament fiber.
More preferably, the compacting raw material of said environment-friendly sheet comprises the component that weight ratio is following: 50～69 parts of circuit boards reclaim powder, 10～20 parts of wood fiber powders, 5～10 parts of crosslinking agents, 1～2 part of waterproofing agent, 5～8 parts of carbon filament fibers.
The high-intensity performance that the wood fiber powder synthetic plate that circuit board recovery powder and stalk, timber or bamboo wood saw powder are made has promptly been inherited circuit board has the excellent toughness of wood fibre and less density again; Make sheet material that following effect arranged: both to alleviate the proportion of sheet material, alleviated the product bearing capacity of building; The static strength of reinforcement plate section product and MOR again; Also make plate product process easily, can suppress different shape.
Utilize useless electronic circuit board regenerative powder or/and wiring board boring powder is main fill material, can the waste resource regeneration cycle be used, help environmental protection and energy-saving and emission-reduction.Because circuit board (CCL, PCB) powder mainly is made up of epoxy resin and glass fibre; Have waterproof, anti-deformation, anti-expansion, mildew-resistant, effect such as anticorrosion, acidproof, alkaline-resisting with its plate product of doing the raw material manufacturing; And can reach zero formaldehyde standard, recovery more also capable of circulation.
Add the proportion that carbonization lignocellulosic mixture powder mainly can alleviate sheet material; The gravity that bears of practicing thrift cost of transportation and using sheet material; Increase the interior external carbuncle effect of sheet material, static strength and MOR are effectively improved, strengthen the serviceability of sheet material simultaneously; Can suppress the Z-Correct bump mapping Z-correct of different shape, make it that sensation modelled after an antique more arranged.Add the lignocellulosic mixture powder and can make sheet material have more the fiber bonding strength, make the better elasticity of having of sheet material, in the later stage use process superior serviceability being provided.
Wherein, said crosslinking agent is Lauxite colloidal sol or phenolic resins colloidal sol, and said waterproofing agent is one or more in paraffin, silicone oil, white oil, the middle palm wax, and said carbon filament fiber is a glass fibre.
Wherein, Add environment-friendly urea-formaldehyde resin colloidal sol or phenolic resins colloidal sol as the crosslinking agent that utilizes the synthetic zero carbon wood fibre environment-friendly sheet of useless circuit board powder to make, in the floor is synthetic, react, increase the deadlocked degree between powder and the powder by phenols (phenol, cresols and resorcinol etc.); Strengthen the sheet material degree of adhesion with molecular colloid; Mainly play adhesive action, guarantee that product can not disperse the crosslinked action during the stiffener material forming easily.
Wherein, In interpolation paraffin, silicone oil, white oil, the middle palm wax one or more are as waterproofing agent; The best is to add paraffin emulsion; To the effect that the wood fibre composition and the circuit board meal component of wood fibre environment-friendly sheet plays water resisting protection, prevent the distortion of sheet material water-swellable, reach mildew-resistant, corrosion-resistant effect.
More preferably, the compacting raw material of said environment-friendly sheet comprises the component that weight ratio is following: 1～69 part of circuit board reclaims powder, 1～70 part of wood fiber powder; 1～20 part of crosslinking agent, 1～10 part of waterproofing agent, 1～8 part of fireproof agent; 1～5 part of formaldehyde is caught and is caught agent; 1～12 part of carbon filament fiber, 1～5 part of curing agent, 1～5 part of antioxidant.
More preferably, the compacting raw material of said environment-friendly sheet comprises the component that weight ratio is following: 50～69 parts of circuit boards reclaim powder, 10～20 parts of wood fiber powders; 5～10 parts of crosslinking agents, 2～3 parts of waterproofing agents, 1～3 part of fireproof agent; 2～3 parts of formaldehyde are caught and are caught agent; 5～12 parts of carbon filament fibers, 1.5～2 parts of curing agent, 1.5～2 parts of antioxidant.
More preferably, the compacting raw material of said environment-friendly sheet comprises the component that weight ratio is following: 40～50 parts of circuit boards reclaim powder, 30～40 parts of wood fiber powders; 13～20 parts of crosslinking agents, 3～5 parts of waterproofing agents, 3～5 parts of fireproof agents; Formaldehyde is caught and is caught 2～3 parts of agent; 7～10 parts of carbon filament fibers, 1.5～2 parts in curing agent, 1.5～2 parts in antioxidant.
More preferably; Said fireproof agent is that ammonium chloride, potash, carbon are joined one or more in the ammonium dihydrogen; Said formaldehyde is caught and caught agent is in imvite, melamine, the phenol one or more; Said curing agent is one or more in ammonium chloride, oxalic acid, phenolic aldehyde amine, polyetheramine, the fragrant fat amine, and said antioxidant is one or more in fragrant fat amine antioxidants, phenolic antioxidant, thioesters, the phosphite.
Wherein, add ammonium chloride, potash, carbon and join in the ammonium dihydrogen one or more as fireproof agent, also can add phosphorus nitrogen boron molybdenum magnesium zinc-aluminium composition is the sheet material fireproof agent, and making fireproof agent is that fire retardant is uniformly distributed in tiny fiber surface.Fire retardant is met high heat and is produced acid, forms dehydrating agent, and along with the rising of temperature, fire retardant systems will carry out vigorous reaction, and producing steam and non-flammable gases is anti-flammability gas, simultaneously the expanded foamed formation porous foam of system charring layer.Because the combustible concentration that steam and not so gas can dilute sheet material, charring layer plays the effects such as effusion of resistance heat, resistance oxygen and prevention degradation product, is three-dimensional, omnibearing thereby make whole fire-retardant process, makes the product fire protecting performance reach the Bf1 level.Can add the efficient fumicants that presses down in the fireproof agent and effectively reduce smokescope.
Wherein, Add in imvite, melamine, the phenol one or more and catch as formaldehyde that to catch agent be eliminating smell agent; Utilize the physical property of the porous absorption of imvite; Or the chemical reaction effect of melamine, phenol, can effectively purify the assorted smells such as resin that circuit board reclaims powder and wood fiber powder and dispose.
Wherein, the carbon filament fiber of interpolation is a glass fibre, and the carbon filament fiber of interpolation should be short and cuts the carbon filament fiber, and its length is 3 millimeters to 25 millimeters, thereby can increase the intensity of sheet material and strengthen the bearing capacity of whole sheet material.
Wherein, Add in ammonium chloride, oxalic acid, phenolic aldehyde amine, polyetheramine, the fragrant fat amine one or more as curing agent, most preferably with ammonium chloride as curing agent, can make sheet material accelerate to solidify in process of production; Shorten the production cycle; Raise the efficiency, plate product is produced the back can carry out next step sheet material processed and applied, also can prevent the phenomenon that the next product of harsh output breaks up easily simultaneously at once.
Wherein, Add in fragrant fat amine antioxidants, phenolic antioxidant, thioesters, the phosphite one or more as antioxidant; Most preferably add in the sheet material as antioxidant, can prevent to receive in the long-time use of the plate product of producing the climate temperature influence and generation oxidation or aging action with phosphite.
Adding E0 environment-friendly urea-formaldehyde resin colloidal sol or phenolic resins colloidal sol, waterproofing agent, fireproof agent, taste removal formaldehyde at prescription catches and catches agent, shortly cuts carbon filament fiber, curing agent, antioxidant, stablize composite assistant (stablize, dispersion, activity) etc. sheet material is melted mutually; Bonding strength is higher; The sheet material stable curing does not receive the weather oxidation; Can also have natural wood material smell, and can solve various performance requirements such as dalle fire prevention.
Through repetition test, obtain the embodiment of the material matching of the following various components that can satisfy the synthetic zero carbon wood fibre environment-friendly sheet of the useless circuit board powder of moulding manufacturing utilization.
Embodiment one: the compacting raw material of wood fibre environment-friendly sheet of the present invention comprises the component that weight ratio is following: 1 part of circuit board reclaims powder, 70 parts of wood fiber powders, 20 parts of Lauxite colloidal sols, 5 parts of paraffin, 12 parts of carbon filament fibers.
Embodiment two: the compacting raw material of wood fibre environment-friendly sheet of the present invention comprises the component that weight ratio is following: 69 parts of circuit boards reclaim powder, 1 part of wood fiber powder, 12 parts of Lauxite colloidal sols, 8 parts of paraffin, 8 parts of carbon filament fibers.
Embodiment three: the compacting raw material of wood fibre environment-friendly sheet of the present invention comprises the component that weight ratio is following: 69 parts of circuit boards reclaim powder, 70 parts of wood fiber powders, 20 parts of Lauxite colloidal sols, 10 parts of paraffin, 10 parts of carbon filament fibers.
Embodiment four: the compacting raw material of wood fibre environment-friendly sheet of the present invention comprises the component that weight ratio is following: 30 parts of circuit boards reclaim powder, 70 parts of wood fiber powders, 10 parts of Lauxite colloidal sols, 10 parts of paraffin, 1 part of carbon filament fiber.
Embodiment five: the compacting raw material of wood fibre environment-friendly sheet of the present invention comprises the component that weight ratio is following: 15 parts of circuit boards reclaim powder, 30 parts of wood fiber powders, 1 part of Lauxite colloidal sol, 1 part of paraffin, 1 part of carbon filament fiber.
Embodiment six: the compacting raw material of wood fibre environment-friendly sheet of the present invention comprises the component that weight ratio is following: 50 parts of circuit boards reclaim powder, 20 parts of wood fiber powders, 10 parts of Lauxite colloidal sols, 2 parts of paraffin, 5 parts of carbon filament fibers.
Embodiment seven: the compacting raw material of wood fibre environment-friendly sheet of the present invention comprises the component that weight ratio is following: 69 parts of circuit boards reclaim powder, 10 parts of wood fiber powders, 8 parts of Lauxite colloidal sols, 2 parts of paraffin, 8 parts of carbon filament fibers.
Embodiment eight: the compacting raw material of wood fibre environment-friendly sheet of the present invention comprises the component that weight ratio is following: 69 parts of circuit boards reclaim powder, 20 parts of wood fiber powders, 10 parts of Lauxite colloidal sols, 2 parts of paraffin, 5 parts of carbon filament fibers.
Embodiment nine: the compacting raw material of wood fibre environment-friendly sheet of the present invention comprises the component that weight ratio is following: 50 parts of circuit boards reclaim powder, 10 parts of wood fiber powders, 5 parts of Lauxite colloidal sols, 1 part of paraffin, 8 parts of carbon filament fibers.
Embodiment ten: the compacting raw material of wood fibre environment-friendly sheet of the present invention comprises the component that weight ratio is following: 60 parts of circuit boards reclaim powder, 16 parts of wood fiber powders, 8 parts of Lauxite colloidal sols, 1.5 parts of paraffin, 6 parts of carbon filament fibers.
Embodiment 11: the compacting raw material of wood fibre environment-friendly sheet of the present invention comprises the component that weight ratio is following: 69 parts of circuit boards reclaim powder, 1 part of wood fiber powder, 20 parts of phenolic resins colloidal sols; 5 parts of silicone oil, 1 part of ammonium chloride, 5 parts of phenol; 1 part of carbon filament fiber, 1 part of ammonium chloride, 1 part of phosphite.
Embodiment 12: the compacting raw material of wood fibre environment-friendly sheet of the present invention comprises the component that weight ratio is following: 1 part of circuit board reclaims powder, 70 parts of wood fiber powders, 1 part of phenolic resins colloidal sol; 10 parts of silicone oil; 8 parts of ammonium chlorides, 1～5 part of phenol, 1～12 part of carbon filament fiber; 5 parts of ammonium chlorides, 5 parts of phosphites.
Embodiment 13: the compacting raw material of wood fibre environment-friendly sheet of the present invention comprises the component that weight ratio is following: 18 parts of circuit boards reclaim powder, 50 parts of wood fiber powders, 10 parts of phenolic resins colloidal sols; 8 parts of silicone oil; 5 parts of ammonium chlorides, 3 parts of phenol, 8 parts of carbon filament fibers; 3.5 part ammonium chloride, 3.5 parts of phosphites.
Embodiment 14: the compacting raw material of wood fibre environment-friendly sheet of the present invention comprises the component that weight ratio is following: 69 parts of circuit boards reclaim powder, 10 parts of wood fiber powders, 5 parts of phenolic resins colloidal sols; 2 parts of paraffin; 1 part of ammonium chloride, 2 parts of phenol, 5 parts of carbon filament fibers; 1.5 part ammonium chloride, 1.5 parts of phosphites.
Embodiment 15: the compacting raw material of wood fibre environment-friendly sheet of the present invention comprises the component that weight ratio is following: 69 parts of circuit boards reclaim powder, 20 parts of wood fiber powders, 10 parts of phenolic resins colloidal sols; 2 parts of paraffin, 2 parts of ammonium chlorides, 3 parts of phenol; 5 parts of carbon filament fibers, 2 parts of ammonium chlorides, 2 parts of phosphites.
Embodiment 16: the compacting raw material of wood fibre environment-friendly sheet of the present invention comprises the component that weight ratio is following: 50 parts of circuit boards reclaim powder, 20 parts of wood fiber powders, 8 parts of phenolic resins colloidal sols; 2.5 part paraffin; 3 parts of ammonium chlorides, 2 parts of phenol, 8 parts of carbon filament fibers; 1.8 part ammonium chloride, 1.8 parts of phosphites.
Embodiment 17: the compacting raw material of wood fibre environment-friendly sheet of the present invention comprises the component that weight ratio is following: 60 parts of circuit boards reclaim powder, 15 parts of wood fiber powders, 8 parts of phenolic resins colloidal sols; 3 parts of paraffin; 3 parts of ammonium chlorides, 2.5 parts of phenol, 12 parts of carbon filament fibers; 2 parts of ammonium chlorides, 2 parts of phosphites.
Embodiment 18: the compacting raw material of wood fibre environment-friendly sheet of the present invention comprises the component that weight ratio is following: 40 parts of circuit boards reclaim powder, 30 parts of wood fiber powders, 13 parts of phenolic resins colloidal sols; 5 parts of paraffin; 5 parts of ammonium chlorides, 2 parts of phenol, 10 parts of carbon filament fibers; 1.5 parts of ammonium chlorides, 1.5 parts of phosphites.
Embodiment 19: the compacting raw material of wood fibre environment-friendly sheet of the present invention comprises the component that weight ratio is following: 50 parts of circuit boards reclaim powder, 30 parts of wood fiber powders, 16 parts of phenolic resins colloidal sols; 4 parts of paraffin; 3 parts of ammonium chlorides, 2 parts of phenol, 7 parts of carbon filament fibers; 1.8 parts of ammonium chlorides, 1.8 parts of phosphites.
Embodiment 20: the compacting raw material of wood fibre environment-friendly sheet of the present invention comprises the component that weight ratio is following: 50 parts of circuit boards reclaim powder, 40 parts of wood fiber powders, 20 parts of phenolic resins colloidal sols; 3 parts of paraffin, 4 parts of ammonium chlorides, 3 parts of phenol; 9 parts of carbon filament fibers, 2 parts of ammonium chlorides, 2 parts of phosphites.
Embodiment 21: the compacting raw material of wood fibre environment-friendly sheet of the present invention comprises the component that weight ratio is following: 45 parts of circuit boards reclaim powder, 36 parts of wood fiber powders, 20 parts of phenolic resins colloidal sols; 5 parts of paraffin; 5 parts of ammonium chlorides, 2.5 parts of phenol, 8 parts of carbon filament fibers; 2 parts of ammonium chlorides, 2 parts of phosphites.
According to the sheet material of the component manufacturing of the foregoing description, through test each item performance indications, its experimental data is following: (press the national standard method detection)
In above-mentioned each embodiment, replace each other as crosslinking agent with Lauxite colloidal sol and phenolic resins colloidal sol, experiment test plate product repeatedly, its various performance parameters phase residual quantity is that acceptable substitutes composition mutually less than 3.2%.
Replace original paraffin or silicone oil as waterproofing agent with one or more the combination raw materials in paraffin, silicone oil, white oil, the middle palm wax; Experiment test plate product repeatedly; Its various performance parameters phase residual quantity is that acceptable substitutes composition mutually less than 3.5%.
One or more the combination raw materials of joining in the ammonium dihydrogen with potash, carbon replaces original ammonium chloride as fireproof agent, experiment test plate product repeatedly, and its various performance parameters phase residual quantity is that acceptable substitutes composition mutually less than 5%.
Replace original phenol with one or more the combination raw materials in imvite, the melamine and catch as formaldehyde and catch agent, experiment test plate product repeatedly, its various performance parameters phase residual quantity is that acceptable substitutes composition mutually less than 4%.
Said carbon filament fiber is a short glass fiber.
One or more combination raw materials with in oxalic acid, phenolic aldehyde amine, polyetheramine, the fragrant fat amine replaces original ammonium chloride as curing agent, experiment test plate product repeatedly, and its various performance parameters phase residual quantity is that acceptable substitutes composition mutually less than 3%.
With fragrant fat amine antioxidants, phenolic antioxidant, thioesters, in one or more combination raw materials replace original phosphite as antioxidant; Experiment test plate product repeatedly; Its various performance parameters phase residual quantity is that acceptable substitutes composition mutually less than 3.6%.
The above disclosed the preferred embodiments of the present invention that are merely can not limit the present invention's interest field certainly with this, so according to the equivalent variations that claim of the present invention is done, still belong to the scope that the present invention is contained.
Claims (4)
1. manufacturing process of utilizing the synthetic zero carbon wood fibre environment-friendly sheet of useless circuit board powder; It is characterized in that; The compacting raw material of said environment-friendly sheet comprises the component that weight ratio is following: 1～69 part of circuit board reclaims powder, 1～70 part of wood fiber powder, 1～20 part of crosslinking agent; 1～10 part of waterproofing agent, 1～12 part of carbon filament fiber;
Said manufacturing process comprises the steps:
A, circuit board is reclaimed powder with vibrator screening and the assorted slag of magnetic metal, make its not conglomeration of raw material;
B, circuit board is reclaimed powder carry out dried, the moisture that control circuit board reclaims powder is no more than 3%, and the temperature in the control drying oven stirs drying in 125 ℃ constant temperature;
C, the wood fibre auxiliary material is carried out coarse crushing, and then pulverize to grind and make the wood fibre auxiliary material change into the above wood fiber powder of 80 orders, carry out moisture drying in the temperature environment more than 100 ℃ and handle, control its moisture 2%～4%; Under 180 ℃, mix wood fiber powder then and form the carbon fibre powder;
D, reclaim powder and carbon fibre powder mixing and stirring in proportion to circuit board, add processing aid evenly mixing once more in proportion; Said processing aid comprises crosslinking agent, waterproofing agent, carbon filament fiber, and said crosslinking agent is Lauxite colloidal sol or phenolic resins colloidal sol, and said waterproofing agent is one or more in paraffin, silicone oil, white oil, the middle palm wax;
E, the even constant speed feeding of mixed material is got into the system of mating formation; Shakeout raw material with putting down roller; Mixed material gets into the slab that is compressed to unified thickness behind the preformer, sends to deburring in length and breadth by conveyer belt, and then is transported to multi-daylight press sheet material is carried out the moulding pressurization; Pressurizeed 1 minute, the pressure of plate surface is reached more than the 10Mps, leave standstill and carry out ftercompction after 2 minutes again, ftercompction pressure reaches more than the 14Mps, the final vacuum pressure release in 5 minutes of ftercompction time remaining, and pressure leak process evenly successively decreases gently;
After f, compacting finish, pull out sheet material, carry out turnover panel and air cooling then and handle;
G, sanding are decided thick, quality inspection, heap plate warehouse-in.
2. the manufacturing process of the zero carbon wood fibre environment-friendly sheet that the useless circuit board powder of utilization according to claim 1 is synthetic; It is characterized in that; It is that waste printed circuit board or circuit board leftover pieces are disassembled the granular material of wearing into that said circuit board reclaims powder, or the circuit boring powder that directly reclaims.
3. the manufacturing process of the zero carbon wood fibre environment-friendly sheet that the useless circuit board powder of utilization according to claim 1 is synthetic is characterized in that, said wood fibre auxiliary material is agricultural crop straw, wooden saw powder or bamboo matter saw powder.
4. the manufacturing process of the zero carbon wood fibre environment-friendly sheet that the useless circuit board powder of utilization according to claim 1 is synthetic; It is characterized in that; In step e, the laminate of said multi-daylight press is with the heating of circulating heat conduction oil, and the conduction oil temperature of said laminate is controlled between 150 ℃ ~ 190 ℃.
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