CN100404239C - Method for mfg. glass fiber reinforced plastic product by nonmetal powder of waste circuit board - Google Patents
Method for mfg. glass fiber reinforced plastic product by nonmetal powder of waste circuit board Download PDFInfo
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- CN100404239C CN100404239C CNB2006100111175A CN200610011117A CN100404239C CN 100404239 C CN100404239 C CN 100404239C CN B2006100111175 A CNB2006100111175 A CN B2006100111175A CN 200610011117 A CN200610011117 A CN 200610011117A CN 100404239 C CN100404239 C CN 100404239C
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- 229910052755 nonmetal Inorganic materials 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 51
- 239000011152 fibreglass Substances 0.000 title claims abstract description 43
- 239000002699 waste material Substances 0.000 title abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 238000013461 design Methods 0.000 claims abstract description 13
- 229920005989 resin Polymers 0.000 claims description 47
- 239000011347 resin Substances 0.000 claims description 47
- 239000011521 glass Substances 0.000 claims description 33
- 239000004744 fabric Substances 0.000 claims description 31
- 238000003825 pressing Methods 0.000 claims description 24
- 239000003795 chemical substances by application Substances 0.000 claims description 19
- 150000001875 compounds Chemical class 0.000 claims description 15
- 238000000748 compression moulding Methods 0.000 claims description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 239000003822 epoxy resin Substances 0.000 claims description 12
- FDPIMTJIUBPUKL-UHFFFAOYSA-N pentan-3-one Chemical compound CCC(=O)CC FDPIMTJIUBPUKL-UHFFFAOYSA-N 0.000 claims description 12
- 229920001568 phenolic resin Polymers 0.000 claims description 12
- 229920000647 polyepoxide Polymers 0.000 claims description 12
- XXQBEVHPUKOQEO-UHFFFAOYSA-N potassium superoxide Chemical compound [K+].[K+].[O-][O-] XXQBEVHPUKOQEO-UHFFFAOYSA-N 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 10
- 239000000945 filler Substances 0.000 claims description 10
- 238000010298 pulverizing process Methods 0.000 claims description 10
- 239000002002 slurry Substances 0.000 claims description 10
- 239000005011 phenolic resin Substances 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 6
- GEMHFKXPOCTAIP-UHFFFAOYSA-N n,n-dimethyl-n'-phenylcarbamimidoyl chloride Chemical group CN(C)C(Cl)=NC1=CC=CC=C1 GEMHFKXPOCTAIP-UHFFFAOYSA-N 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 230000015271 coagulation Effects 0.000 claims description 5
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- 238000005056 compaction Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 238000013467 fragmentation Methods 0.000 claims description 5
- 238000006062 fragmentation reaction Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000007711 solidification Methods 0.000 claims description 5
- 230000008023 solidification Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 14
- 238000005516 engineering process Methods 0.000 abstract description 11
- 239000003365 glass fiber Substances 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 6
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- 238000010586 diagram Methods 0.000 description 8
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
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- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000005007 epoxy-phenolic resin Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
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- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
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Classifications
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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
- Y02W30/62—Plastics recycling; Rubber recycling
-
- 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
- Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]
Landscapes
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The present invention relates to a method for preparing glass fiber reinforced plastic products by utilizing non-metal powders of waste circuit boards, which belongs to the technical field of waste recovery and reuse. The glass fiber reinforced plastic product designed by a mould can be obtained by that the waste circuit board is broken, crushed and ground into powders; the non-metal powders are obtained by separation and dried; the mould is designed and prepared according to the requirements of the glass fiber reinforced plastic product; raw materials are added in; the mould is pressed for forming. Compared with the prior art, because the present invention adopts the non-metal powders of the waste circuit board, short glass fibers in the non-metal powders cause the mechanical physical comprehensive performance of glass fiber reinforced plastic to be increased by the detection of the national quality detection center of the glass fiber reinforced plastic. Especially, the bending strength is increased by 35%. The requirements of the glass fiber reinforced plastic on the aspects of technology, economy and green environmental protection are well satisfied. By the adoption of methods of reasonable glass fiber material ply design and mould forming, the present invention has the advantages of simple technology, low cost, and strong application in the technical field of the waste recovery and reuse.
Description
Technical field
The present invention relates to a kind of method of utilizing the non-metal powder making glass fiber reinforced plastics product of discarded circuit board, belong to waste recovery reutilization technology field.
Background technology
Existing glass fiber reinforced plastics product technology is made base material by glass fibre, size, unsaturated-resin or epoxy resin or phenolic resins and is made by combination process.
Traditional well lid and water grate are casting iron well lid and water grate, and the cost height easily gets rusty under field conditions (factors), and vehicle on expressway easily produces noise through out-of-date water grate.And, cause pedestrian and car accident because the well lid and the water grate of cast iron have stolen phenomenon repeatly.Steel fiber reinforced cement base composite material manhole cover and water grate intensity is low, not shock-resistant, the vibration of locomotive with roll very easily crackedly down, also cause potential safety hazard.So be necessary to provide the well lid of a kind of high strength, good toughness and durable in use and social and economic benefits and good and water grate to satisfy the demands.
A kind of method of utilizing the non-metal powder making glass fiber reinforced plastics product of discarded circuit board, as can be used for town road, check underground installation such as draining, the manhole well lid of usefulness such as telecommunications, combustion gas, fire-fighting, on highway, urban road, square, the park factory building is indoor and composite applications water grates such as ground draining such as greenery patches, preparations such as sheet material and constructional ornamental material.
The extensive use of electronic product has promoted development of social productivity greatly; Simultaneously, the recycling of waste electronic product becomes a problem that allows the people have a headache.Printed circuit board (PCB) (pcb board) is all arranged in nearly all electronics and the electric equipment products.The non-metal powder renewable resources that accounts for gross weight 70% that obtains after the printed substrate recovery not only there is remarkable economic efficiency, also protects environment and energy savings.
Summary of the invention
The present invention adopts the non-metal powder of discarded circuit board---the mixture of epoxy resin and glass fibre powder; add glass fabric, new unsaturated-resin or epoxy resin or phenolic resins and add curing agent potassium peroxide ethyl ketone and promoter cobalt naphthenate again; the glass fiber reinforced plastics product of making not only satisfies the economic benefit requirement; have also that protection environment, energy savings, technology are simple, high strength, good toughness, elasticity are recovered, corrosion-resistant, advantage such as can not lose; simultaneously can also be painted according to user's request, make good looking appearance.
To achieve these goals, a kind of method of utilizing the non-metal powder making glass fiber reinforced plastics product of discarded circuit board that the present invention relates to is characterized in that this method may further comprise the steps:
(1) pulverizing, fragmentation
At first be by powder broken, that the pulverizing two procedures is worn into discarded circuit board 16～500 order scopes;
(2) separate to such an extent that non-metal powder is also dry
Utilize the difference of metal and nonmetal proportion that non-metal powder is separated again, and with the non-metal powder drying;
(3) designing mould
Require to design and produce mould according to glass fiber reinforced plastics product then;
(4) add raw material
In mould, add a kind of, non-metal powder and filler (comprising white carbon, curing agent and promoter) in raw material glass fabric, phenolic resins or unsaturated-resin or the epoxy resin;
Its added each raw material weight proportioning is:
0.45～0.50 part of glass fabric;
In unsaturated-resin or epoxy resin or the phenolic resins a kind of 0.30～0.40 part;
0.09～0.11 part of non-metal powder;
0.01～0.15 part of filler;
(5) compression molding
The large tonnage pressing machine mold pressing is used in the intact back of step (4), promptly obtains the glass fiber reinforced plastics product of mould design.
Concrete compression-moulding methods step is:
(1) preparation resin compound slurry
Add earlier 15%～25% non-metal powder and white carbon among a kind of in unsaturated-resin or epoxy resin or phenolic resins by weight ratio; Add 2%～4% curing agent such as potassium peroxide ethyl ketone 25 degrees centigrade of room temperatures, 1%～3% promoter such as cobalt naphthenate stirred 2 hours with 450～750r/min speed in agitator, and it is standby to obtain the resin compound slurry;
(2) cleaning of mould
Mold cleaning is clean, and the surface keeps dry, and evenly applies releasing agent at die surface;
(3) form the top layer
Be to process top layer (gel coat) then, the quality on top layer directly has influence on the result of use and the life-span of product, is the higher one deck of resin content, and the glass fabric that flooded resin is placed in the resin natural coagulation again on the top layer;
(4) form packed layer
The inserts of annotating then forms packed layer: pour in the mould that forms the top layer stirring the resin compound that obtains by said ratio, form packed layer by vibratory compaction;
(5) finish bottom
To soak the glass fabric of resin, press the difference of product, select the different big or small glass fabrics and the different numbers of plies, be layering on request, and in the process of stack, glass fabric be wipeed off, form bottom;
(6) mold pressing and curing molding
Mold pressing on large tonnage pressing machine then, cold curing 24 hours also can be accelerated solidification process by heating, and the depanning deburring is promptly finished.
Industrially also pass through the demoulding, finishing, the check i.e. demoulding behind curing molding, the finishing of warehouse-in again; By test stone, the product that has solidified is carried out outward appearance and mechanical properties test, qualified product is put into warehouse for finished product for dispatching from the factory.
The present invention compared with prior art, owing to adopted the non-metal powder of discarded circuit board, detect through national fiberglass quality testing center, short glass fiber in the non-metal powder improves the mechanical-physical combination property of fiberglass, particularly bending strength has improved 35%, finely satisfied the requirement of glass fiber reinforced plastics product aspect technology, economy and environmental protection, add and adopt layer design of rational glass fiber material shop and compression-moulding methods, technology is simple, reduced cost, had in waste recovery reutilization technology field more by force and use.
The invention process example is according to the regulation of People's Republic of China's city-building industry standard-regenerating resin composite drain cover CJ/T121-2000 and regenerating resin composite material shutter grate CJ/T130-2001, by experiments such as bearing capacitys, residual deformation in allowed limits, and equal flawless, satisfied heavy duty (water grate 130KN, well lid 240KN) requirement is the ideal substitute of casting iron well lid and water grate etc., and the fine problems such as stolen potential safety hazard that solved.
Description of drawings
Fig. 1 is a FB(flow block) of the present invention.
Fig. 2 is a compression molding schematic diagram of the present invention.
The glass fiber reinforced plastics product water grate schematic diagram that Fig. 3 utilizes the non-metal powder of discarded circuit board to make for the invention process example.
The glass fiber reinforced plastics product well lid schematic diagram that Fig. 4 utilizes the non-metal powder of discarded circuit board to make for the invention process example.
The glass fiber reinforced plastics product sheet material schematic diagram that Fig. 5 utilizes the non-metal powder of discarded circuit board to make for the invention process example.
The specific embodiment
Fig. 1 is a FB(flow block) of the present invention.Fig. 2 is a compression molding schematic diagram of the present invention, and wherein, square frame is the compression molding process, the industrial demoulding in addition, finishing, inspector's check, qualified warehouse-in etc.
Below by embodiment the present invention is described.
The glass fiber reinforced plastics product water grate that embodiment 1 utilizes the non-metal powder of discarded circuit board to make
A kind of method of utilizing the non-metal powder making glass fiber reinforced plastics product water grate of discarded circuit board may further comprise the steps:
(1) pulverizing, fragmentation
At first be by powder broken, that the pulverizing two procedures is worn into discarded circuit board 16～500 order scopes;
(2) separate to such an extent that non-metal powder is also dry
Utilize the difference of metal and nonmetal proportion that non-metal powder is separated again, and with the non-metal powder drying;
(3) designing mould
Requirement according to the water grate designs and produces mould then;
(4) add raw material
The filler that in mould, adds glass fabric, phenolic resins, non-metal powder and form by white carbon, curing agent and promoter;
Its added each raw material weight proportioning is:
0.45 part of glass fabric;
0.30 part in phenolic resins;
0.10 part of non-metal powder;
Filler comprises 0.15 part of white carbon, curing agent and promoter;
(5) compression molding
The large tonnage pressing machine mold pressing is used in the intact back of step (4), promptly obtains the glass fiber reinforced plastics product water grate of mould design;
Concrete compression-moulding methods step is:
(1) preparation resin compound slurry
The non-metal powder and the white carbon that in phenolic resins, add weight proportion 15% earlier; Add weight proportioning 4% curing agent such as potassium peroxide ethyl ketone 25 degrees centigrade of room temperatures, weight proportion 1.5% promoter such as cobalt naphthenate stir in agitator, and mixing speed is 450r/min, and it is standby to obtain the resin compound slurry;
(2) cleaning of mould
Mold cleaning is clean, and the surface keeps dry, and evenly applies releasing agent at die surface;
(3) form the top layer
Be to process top layer (gel coat) then, the quality on top layer directly has influence on the result of use and the life-span of product, is the higher one deck of resin content, and the glass fabric that flooded resin is placed in the resin natural coagulation again on the top layer;
(4) form packed layer
The inserts of annotating then forms packed layer: pour in the mould that forms the top layer stirring the resin compound that obtains by said ratio, form packed layer by vibratory compaction;
(5) finish bottom
To soak the glass fabric of resin, press the difference of product, select the different big or small glass fabrics and the different numbers of plies, be layering on request, and in the process of stack, glass fabric be wipeed off, form bottom;
(6) mold pressing and curing molding
Mold pressing on large tonnage pressing machine then, cold curing 24 hours also can be accelerated solidification process by heating, and the depanning deburring is promptly finished.
The water grate of making as shown in Figure 3.The glass fiber reinforced plastics product water grate schematic diagram that Fig. 3 utilizes the non-metal powder of discarded circuit board to make for the invention process example, wherein, 1 is osculum, 2 is eradicating water grate.
The glass fiber reinforced plastics product well lid that embodiment 2 utilizes the non-metal powder of discarded circuit board to make
A kind of method of utilizing the non-metal powder making glass fiber reinforced plastics product well lid of discarded circuit board may further comprise the steps:
(1) pulverizing, fragmentation
At first be by powder broken, that the pulverizing two procedures is worn into discarded circuit board 16～500 order scopes;
(2) separate to such an extent that non-metal powder is also dry
Utilize the difference of metal and nonmetal proportion that non-metal powder is separated again, and with the non-metal powder drying;
(3) designing mould
Requirement according to well lid designs and produces mould then;
(4) add raw material
The filler that in mould, adds glass fabric, unsaturated-resin, non-metal powder, forms by white carbon, curing agent and promoter;
Its added each raw material weight proportioning is:
0.50 part of glass fabric;
0.40 part of unsaturated-resin;
0.09 part of non-metal powder;
Filler comprises 0.01 part of white carbon, curing agent and promoter;
(6) compression molding
The large tonnage pressing machine mold pressing is used in the intact back of step (4), promptly obtains the glass fiber reinforced plastics product well lid of mould design.
Concrete compression-moulding methods step is:
(1) preparation resin compound slurry
Elder generation adds 20% non-metal powder and white carbon in unsaturated-resin; Add 3% curing agent such as potassium peroxide ethyl ketone 25 degrees centigrade of room temperatures, 1% promoter such as cobalt naphthenate stir in agitator, and mixing speed is 600r/min, and it is standby to obtain the resin compound slurry;
(2) cleaning of mould
Mold cleaning is clean, and the surface keeps dry, and evenly applies releasing agent at die surface;
(3) form the top layer
Be to process top layer (gel coat) then, the quality on top layer directly has influence on the result of use and the life-span of product, is the higher one deck of resin content, and the glass fabric that flooded resin is placed in the resin natural coagulation again on the top layer;
(4) form packed layer
The inserts of annotating then forms packed layer: pour in the mould that forms the top layer stirring the resin compound that obtains by said ratio, form packed layer by vibratory compaction;
(5) finish bottom
To soak the glass fabric of resin, press the difference of product, select the different big or small glass fabrics and the different numbers of plies, be layering on request, and in the process of stack, glass fabric be wipeed off, form bottom;
(6) mold pressing and curing molding
Mold pressing on large tonnage pressing machine then, cold curing 24 hours also can be accelerated solidification process by heating, and the depanning deburring is promptly finished.
The well lid of making as shown in Figure 4.The glass fiber reinforced plastics product well lid schematic diagram that Fig. 4 utilizes the non-metal powder of discarded circuit board to make for the invention process example, wherein 3 is anti-skid designs, the 4th, installing hole.
The glass fiber reinforced plastics product sheet material that embodiment 3 utilizes the non-metal powder of discarded circuit board to make
A kind of method of utilizing the non-metal powder making glass fiber reinforced plastics product sheet material of discarded circuit board may further comprise the steps:
(1) pulverizing, fragmentation
At first be by powder broken, that the pulverizing two procedures is worn into discarded circuit board 16～500 order scopes;
(2) separate to such an extent that non-metal powder is also dry
Utilize the difference of metal and nonmetal proportion that non-metal powder is separated again, and with the non-metal powder drying;
(3) designing mould
Requirement according to sheet material designs and produces mould then;
(4) add raw material
The filler that in mould, adds a kind of, non-metal powder in glass fabric, phenolic resins or unsaturated-resin or the epoxy resin, forms by white carbon, curing agent and promoter;
Its added each raw material weight proportioning is:
0.48 part of glass fabric;
0.36 part of epoxy resin;
0.11 part of non-metal powder;
Filler comprises 0.05 part of white carbon, curing agent and promoter;
(5) compression molding
The large tonnage pressing machine mold pressing is used in the intact back of step (4), promptly obtains the glass fiber reinforced plastics product sheet material of mould design;
Concrete compression-moulding methods step is:
(1) preparation resin compound slurry
Elder generation adds 25% non-metal powder and a small amount of white carbon in epoxy resin; Add 2% curing agent such as potassium peroxide ethyl ketone 25 degrees centigrade of room temperatures, 3% promoter such as cobalt naphthenate stir in agitator, and mixing speed is 750r/min, and it is standby to obtain the resin compound slurry;
(2) cleaning of mould
Mold cleaning is clean, and the surface keeps dry, and evenly applies releasing agent at die surface;
(3) form the top layer
Be to process top layer (gel coat) then, the quality on top layer directly has influence on the result of use and the life-span of product, is the higher one deck of resin content, and the glass fabric that flooded resin is placed in the resin natural coagulation again on the top layer;
(4) form packed layer
The inserts of annotating then forms packed layer: pour in the mould that forms the top layer stirring the resin compound that obtains by said ratio, form packed layer by vibratory compaction;
(5) finish bottom
To soak the glass fabric of resin, press the difference of product, select the different big or small glass fabrics and the different numbers of plies, be layering on request, and in the process of stack, glass fabric be wipeed off, form bottom;
(6) mold pressing and curing molding
Mold pressing on large tonnage pressing machine then, cold curing 24 hours also can be accelerated solidification process by heating, and the depanning deburring is promptly finished.
The sheet material of making as shown in Figure 5.The glass fiber reinforced plastics product sheet material schematic diagram that Fig. 5 utilizes the non-metal powder of discarded circuit board to make for the invention process example.
The present invention is for the advantage of existing making glass fiber reinforced plastics product technology:
1. the method for this technology making glass fiber reinforced plastics product is simple, low for equipment requirements, and use amount is big, and the raw material production cost is low, glass Glass steel part price is lower than existing product, remarkable in economical benefits.
2. the present invention is owing to the non-metal powder that has adopted discarded circuit board, through national fiberglass quality testing Spot detection, non-gold Short glass fiber in the genus powder makes the mechanical-physical improved combination properties of fiberglass, and particularly bending strength has improved 35%, very Strengthened well material property.
3. waste electric products is recycled, and turns waste into wealth, and for country saves great deal of steel, the energy savings effect is remarkable.
4. protection of the environment has been processed waste material, has reduced the waste material pollution on the environment.
Claims (4)
1. method that the non-metal powder that utilizes discarded circuit board is made glass fiber reinforced plastics product is characterized in that this method may further comprise the steps:
(1) pulverizing, fragmentation
At first by powder broken, that the pulverizing two procedures is worn into discarded circuit board 16～500 order scopes;
(2) separate to such an extent that non-metal powder is also dry
Utilize the difference of metal and nonmetal proportion that non-metal powder is separated again, and with the non-metal powder drying;
(3) designing mould
Require to design and produce mould according to glass fiber reinforced plastics product;
(4) add raw material
In mould, add a kind of, non-metal powder and filler in raw material glass fabric, phenolic resins or unsaturated-resin or the epoxy resin;
Its added each raw material weight proportioning is:
0.45～0.50 part of glass fabric;
In phenolic resins or unsaturated-resin or the epoxy resin a kind of 0.30～0.40 part;
0.09～0.11 part of non-metal powder;
0.01～0.15 part of filler;
(5) compression molding
The forcing press mold pressing is used in the intact back of step (4), promptly obtains the glass fiber reinforced plastics product of mould design.
2. a kind of method of utilizing the non-metal powder making glass fiber reinforced plastics product of discarded circuit board according to claim 1 is characterized in that described compression molding may further comprise the steps:
(1) preparation resin compound slurry
Earlier add 15%～25% non-metal powder and white carbon by weight ratio among a kind of in phenolic resins or unsaturated-resin or epoxy resin; Add 2%～4% curing agent for 25 degrees centigrade in room temperature, 1%～3% promoter was stirred 2 hours with 450～750r/min speed in agitator, and it is standby to obtain the resin compound slurry;
(2) cleaning of mould
Mold cleaning is clean, and the surface keeps dry, and evenly applies releasing agent at die surface;
(3) form the top layer
Going out the top layer by process of resin then is gel coat, treats the resin natural coagulation, places the glass fabric that flooded resin again on the top layer;
(4) form packed layer
(1) proportioning is set by step stirred the resin compound that obtains pour in the mould that forms the top layer, form packed layer by vibratory compaction;
(5) finish bottom
To soak the glass fabric of resin, press the difference of product, select the different big or small glass fabrics and the different numbers of plies, be layering on request, and in the process of stack, glass fabric be wipeed off, form bottom;
(6) mold pressing and curing molding
Mold pressing on large tonnage pressing machine then, cold curing 24 hours, or by heating quickening solidification process, the depanning deburring is promptly finished.
3. a kind of method of utilizing the non-metal powder making glass fiber reinforced plastics product of discarded circuit board according to claim 2 is characterized in that described curing agent is the potassium peroxide ethyl ketone.
4. a kind of method of utilizing the non-metal powder making glass fiber reinforced plastics product of discarded circuit board according to claim 2 is characterized in that described promoter is cobalt naphthenate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100111175A CN100404239C (en) | 2006-01-06 | 2006-01-06 | Method for mfg. glass fiber reinforced plastic product by nonmetal powder of waste circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100111175A CN100404239C (en) | 2006-01-06 | 2006-01-06 | Method for mfg. glass fiber reinforced plastic product by nonmetal powder of waste circuit board |
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| Publication Number | Publication Date |
|---|---|
| CN1792618A CN1792618A (en) | 2006-06-28 |
| CN100404239C true CN100404239C (en) | 2008-07-23 |
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| CNB2006100111175A Expired - Fee Related CN100404239C (en) | 2006-01-06 | 2006-01-06 | Method for mfg. glass fiber reinforced plastic product by nonmetal powder of waste circuit board |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100547025C (en) * | 2007-09-24 | 2009-10-07 | 四川长虹电器股份有限公司 | The recoverying and utilizing method of polypropylene composite material and discarded printed circuit boards |
| CN101190981B (en) * | 2007-11-29 | 2010-06-16 | 四川长虹电器股份有限公司 | Special-purpose material for automobile bumper and reclaiming utilizing method for waste printed circuit card |
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