CN107353482A - A kind of modified abandoned printed substrate non-metal powder/composite polyolefine material and preparation method thereof - Google Patents
A kind of modified abandoned printed substrate non-metal powder/composite polyolefine material and preparation method thereof Download PDFInfo
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- CN107353482A CN107353482A CN201710725418.2A CN201710725418A CN107353482A CN 107353482 A CN107353482 A CN 107353482A CN 201710725418 A CN201710725418 A CN 201710725418A CN 107353482 A CN107353482 A CN 107353482A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/12—Adsorbed ingredients, e.g. ingredients on carriers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/02—Ingredients treated with inorganic substances
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Abstract
The invention discloses a kind of modified abandoned printed substrate non-metal powder/composite polyolefine material and preparation method thereof, the composite includes：Modified non-metal powder and polyolefin, the weight ratio of modified non-metal powder and polyolefin is 10 ~ 50：50~90.Wherein, modified non-metal powder includes：The weight ratio of non-metal powder and graphene oxide, non-metal powder and graphene oxide is 100：0.1~10.Non-metal powder is the non-metal powder obtained by abandoned printed circuit board non-metal powder and inorganic acid reaction.Non-metal powder is modified by the composite of the present invention using graphene oxide, improves the compatibility of non-metal powder and polyolefin, while improves the mechanical property of composite, has good application prospect.
Description
Technical field
The present invention relates to a kind of non-metal powder and the composite of polyolefin, and in particular to a kind of modified abandoned printed wire
Plate non-metal powder/composite polyolefine material and preparation method thereof.
Background technology
Turn into the necessity that we live with the progress of science and technology, electronic product with the improvement of living standards, particularly
The electronic products such as TV, washing machine, air-conditioning, refrigerator and computer.In China, these household electrical appliance are in last century the nineties
Largely enter daily life, have been enter into the peak period eliminated and scrapped now.The speed to be updated with electronic product is accelerated,
The emergence of multifunction electronic product, accelerate scrapping and eliminating for electronic product, make electron wastes quantity present by
The trend that year increases.
Printed circuit board (PCB)（Printed Circuit Boards, abbreviation PCB）It is component most basic in electronic product,
It is the basis that each component is connected with each other in electronic product.Account in the maximum household electrical appliance of electronic product ratio containing substantial amounts of
PCB.With being continuously increased for discarded household appliances quantity, discarded PCB amount also increases year by year.All produce every year substantial amounts of discarded
PCB。
Except from electronic waste beyond the region of objective existence, it is exactly caused corner in PCB production processes that discarded PCB, which also has a source,
Material and defective work.Leftover pieces and defective work constitute about the 10~20% of PCB productions.China is printed circuit board (PCB)
Big producer, thus the leftover pieces and defective work of substantial amounts will be produced every year.
Contain various metals in the discarded PCB of substantial amounts, there is higher recovery value.By disassembling, crushing, point
Choosing etc. step, by after metal recovery by remaining non-metal powder.These non-metal powders also contain a small amount of metal, because existing sorting
Technology is difficult to metal being totally separated from non-metal powder, and it is heavy metal that these metals are most of, is harmful to environment and the mankind are good for
Health.In addition, also contain brominated flame retardant in non-metal powder.Correctly it cannot thus handle and dispose, these non-metal powders will be right
Environment causes greatly to endanger.
Landfill and burning are the conventional methods for disposing these non-metal powders on a large scale.Landfill does not only take up the soil of preciousness
Resource, and polluting the environment, as the metal contained in non-metal powder can be discharged into environment, the brominated flame retardant contained also can
Leached and contaminated soil and underground water etc. by rainwater.Burning can produce substantial amounts of noxious material, particularly more bromo dibenzo two
It is due to that brominated PCB substrate is caused in combustion to dislike English and PBDF, these noxious materials.
It is a kind of technology with actual application prospect that these non-metal powders are used for into filling-modified polymer composite.
But due in these powder most of particle be all that thermosetting resin is wrapped in glass fibre so that these powder and high score
The compatibility of subtree fat is very poor, causes composite materials property to reduce.
The content of the invention
It is an object of the invention to provide a kind of modified abandoned printed substrate non-metal powder/composite polyolefine material and its system
Preparation Method, the composite solve prior art and are difficult to non-metal powder and macromolecule resin is compatible, to obtain composite
Poor mechanical property the problems such as, non-metal powder can be modified, there is good compatibility with polyolefin, mechanical property improves.
In order to achieve the above object, the invention provides a kind of modified abandoned printed substrate non-metal powder/polyolefin is multiple
Condensation material, the composite include：The weight ratio of modified non-metal powder and polyolefin, described modification non-metal powder and polyolefin
For 10 ~ 50：50~90.
Wherein, described modification non-metal powder includes：Non-metal powder and graphene oxide, described non-metal powder and oxidation
The weight ratio of graphene is 100：0.1~10.
Wherein, described non-metal powder is nonmetallic to be obtained by abandoned printed circuit board non-metal powder and inorganic acid reaction
Powder.
Described polyolefin is polyethylene and/or polypropylene.
The particle diameter of described non-metal powder is the mesh of 20 mesh ~ 180.
Described inorganic acid includes：In hydrochloric acid, sulfuric acid, nitric acid and phosphoric acid any one or it is two or more.
Present invention also offers modified abandoned printed substrate non-metal powder/composite polyolefine material described in a kind of basis
Preparation method, this method includes：
Step 1：Abandoned printed circuit board is crushed, sorted, reclaims non-metal powder, and screens and collects the nonmetallic of different meshes
Powder；
Step 2：The non-metal powder being collected into is added in inorganic acid, reaction makes non-metal powder surface have polar group, mistake
Filter, is washed till neutrality, dries；
Step 3：Dispersant for ultrasonic dispersion is added graphene oxide into, obtains graphene oxide dispersion, by the oxidation stone
Black alkene dispersion liquid is added in the non-metal powder after the processing that step 2 obtains, high-speed stirred, is dried, is obtained being modified non-metal powder；
Step 4：By described modification non-metal powder and polyolefin blend, melting extrusion is granulated, and obtains modified abandoned printed wire
Plate non-metal powder/composite polyolefine material.
In step 2, the weight of described non-metal powder：The volume of inorganic acid is 1g：3 ~ 10mL, described inorganic acid are dense
Spend for 1 ~ 8mol/L.
In step 2, described inorganic acid is any one in hydrochloric acid, sulfuric acid, nitric acid and phosphoric acid or two or more.
In step 2, the reaction time is 0.5 h ~ 20h, and temperature is 50 DEG C~95 DEG C.
In step 3, described dispersant includes：Water, ethanol, methanol, ethylene glycol, tetrahydrofuran, N, N- dimethyl methyls
In acid amides and dimethyl sulfoxide any one or it is two or more.
In step 3, the concentration of described graphene oxide dispersion is 0.1 g/L ~ 10g/L；Described high-speed stirred
Speed be 120~200rpm/min, the time of described high-speed stirred is 10 ~ 30min.
In step 4, described melting extrusion temperature is 200 DEG C ~ 250 DEG C.
Modified abandoned printed substrate non-metal powder/composite polyolefine material of the present invention and preparation method thereof, is solved
Prior art is difficult to the problems such as poor mechanical property of non-metal powder and macromolecule resin is compatible, to obtain composite, has
Advantages below：
（1）The composite of the present invention remaining non-gold after broken, sorting recovery metal powder using abandoned printed circuit board
Belong to powder to prepare, waste resource can be made full use of, and tradition can be avoided non-metal powder to be filled and burned the environment brought
Pollution, the release of such as heavy metal and the generation of noxious material；
（2）The non-metal powder of the present invention is remaining non-metal powder after recovery metal, will not be because secondary without separating twice
Crush and increase cost and produce poisonous and harmful substance, dust and noise；
（3）The composite of the present invention is on the one hand huge using graphene oxide using non-metal powder load graphene oxide
Surface area, both sexes and carbon skeleton are modified non-metal powder, enable non-metal powder and compatible polyolefin, improve the power of composite
Learn performance；On the other hand, make graphene oxide dispersed, avoid reuniting；
（4）The preparation method technique of the composite of the present invention is simple, has both solved abandoned printed circuit board non-metal powder again
Utilize, also solve the reunion of graphene oxide, and inorganic acid used can recycle, and will not cause secondary pollution.
Embodiment
Technical scheme is described further with reference to embodiments.
A kind of modified abandoned printed substrate non-metal powder/composite polyolefine material, the composite include：Modified non-gold
Belong to powder and polyolefin, the weight ratio of modified non-metal powder and polyolefin is 10 ~ 50：50~90.Wherein, modified non-metal powder includes：
The weight ratio of non-metal powder and graphene oxide, non-metal powder and graphene oxide is 100：0.1~10.
Preferably, graphene oxide is the graphene oxide with single atomic layer.Surface of graphene oxide and edge contain
There is substantial amounts of hydrophilic radical, at random containing hydroxyl, epoxy radicals on graphene oxide monolithic, and the edge of graphene oxide contains
There is carboxyl etc., because polar group is contained on its surface, the skeleton of simultaneous oxidation graphene is mainly carbon, thus has both sexes（Parent
Water-based and hydrophobicity）The characteristics of.The polar group that graphene oxide contains can be with the hydroxyl on non-metal powder surface, amino etc. mutually
Effect, on the one hand, make graphene oxide be uniformly distributed in non-metal powder surface, reach the purpose of modified non-metal powder；The opposing party
Face, it is graphene oxide-loaded to be advantageous to graphene oxide in non-metal powder surface and disperse in the composite, avoid graphite oxide
The reunion of alkene.In addition, graphene oxide has very high intensity, modified abandoned printed substrate non-metal powder/polyene is improved
The mechanical property of hydrocarbon composite, including shock resistance, bending resistance and tensile strength etc..
Non-metal powder is the non-metal powder obtained by abandoned printed circuit board non-metal powder and inorganic acid reaction；Polyolefin is
Polyethylene and/or polypropylene.
The particle diameter of non-metal powder is the mesh of 20 mesh ~ 180.
Inorganic acid includes：In hydrochloric acid, sulfuric acid, nitric acid and phosphoric acid any one or it is two or more.
A kind of preparation method according to above-mentioned modified abandoned printed substrate non-metal powder/composite polyolefine material, the party
Method includes：
Step 1：Abandoned printed circuit board is crushed, sorted, reclaims non-metal powder, and screens and collects the nonmetallic of different meshes
Powder；
Step 2：The non-metal powder being collected into is added in inorganic acid, reaction makes non-metal powder surface portion thermosetting resin point
Solution, so that non-metal powder surface has a number of polar group, filtering, neutrality is washed till, dried, to remove moisture removal；
Step 3：Dispersant for ultrasonic dispersion is added graphene oxide into, obtains graphene oxide dispersion, by the oxidation stone
Black alkene dispersion liquid is added in the non-metal powder after the processing that step 2 obtains, high-speed stirred, is dried, is obtained being modified non-metal powder；
The polar group on non-metal powder surface and the Electronic interactions of graphene oxide pass through chemical bond or intermolecular force
Graphene oxide is set to be carried on non-metal powder surface securely；
Step 4：Non-metal powder and polyolefin blend will be modified, melting extrusion is granulated, and obtains the non-gold of modified abandoned printed substrate
Belong to powder/composite polyolefine material；The hydrophobicity of the carbon skeleton of graphene oxide so that modified non-metal powder can have with polyolefin
There is good compatibility.
In step 2, the weight of non-metal powder：The volume of inorganic acid is 1g：3 ~ 10mL, inorganic acid concentration are 1 ~ 8mol/
L。
In step 2, inorganic acid is any one in hydrochloric acid, sulfuric acid, nitric acid and phosphoric acid or two or more.Inorganic acid energy
It is enough by it is untreated fall metal powder react away.
In step 2, the reaction time is 0.5 h ~ 20h, and temperature is 50 DEG C~95 DEG C.
In step 3, dispersant includes：Water, ethanol, methanol, ethylene glycol, tetrahydrofuran, N,N-dimethylformamide and
In dimethyl sulfoxide any one or it is two or more.
In step 3, the concentration of graphene oxide dispersion is 0.1 g/L ~ 10g/L；The speed of high-speed stirred be 120~
200rpm/min, the time of high-speed stirred is 10 ~ 30min, graphene oxide is dispersed in non-metal powder particle surface.
In step 4, melting extrusion temperature is 200 DEG C ~ 250 DEG C, and polypropylene and polyethylene can melt at this temperature.
When carrying out Mechanics Performance Testing to the material in following each embodiments, tensile strength electronic universal tester
（Model specification 3360, Instron companies of the U.S.）, according to the standard tests of ISO 527；Bending strength electronic universal tester
（Model specification 3360, Instron companies of the U.S.）, according to ISO178 standard tests；Impact strength balance weight impact testing machine（Type
Number specification ZBC7000, Mei Tesi industrial system（China）Co., Ltd）, according to ISO180 standard tests（Cantilever beam, breach）.
Embodiment 1
A kind of modified abandoned printed substrate non-metal powder/composite polyethylene material, the composite include：Modified non-metal powder
And polyethylene, the weight ratio of modified non-metal powder and polyethylene is 1：3.Wherein, modified non-metal powder includes：Non-metal powder and oxygen
The weight ratio of graphite alkene, non-metal powder and graphene oxide is 100：1.
Non-metal powder is the abandoned printed circuit board non-metal powder that particle diameter is the mesh of 40 mesh ~ 60.
Non-metal powder is to be existed by abandoned printed circuit board non-metal powder 110g and 330mL the 4mol/L nitric acid of the mesh of 40 mesh ~ 60
Lower 80 DEG C of normal pressure reacts obtained non-metal powder.
Embodiment 2
The preparation method of modified abandoned printed substrate non-metal powder/composite polyethylene material of embodiment 1, this method include：
Step 1：Abandoned printed circuit board is crushed, sorted, reclaims non-metal powder, and screens mesh number as the non-gold of purpose of 40 mesh ~ 60
Belong to powder to collect；
Step 2：The non-metal powder that 110g steps 1 obtain is added in 330mL 4mol/L nitric acid, 6h is reacted at 80 DEG C, makes non-
Metal powder surface part thermosetting resin decomposes, so that non-metal powder surface has a number of polar group, filters, uses
Non-metal powder is washed till neutrality by water, is dried, filtrate recycling；
Step 3：Ultrasonic disperse in water is added graphene oxide into, prepares the graphene oxide dispersion that concentration is 1g/L, will
The graphene oxide dispersion is added in the non-metal powder after the processing that step 2 obtains, non-metal powder and graphene oxide
Weight ratio is 100:1,15min is stirred under 120rpm/min speed, dries, obtains being modified non-metal powder；
Step 4：Non-metal powder and polyethylene will be modified with weight than 1:3 blendings, are granulated in 200 DEG C ~ 250 DEG C melting extrusions, obtain
To modified abandoned printed substrate non-metal powder/composite polyethylene material of embodiment 1.
By Mechanics Performance Testing, modified abandoned printed substrate non-metal powder/composite polyethylene material of embodiment 1
Tensile strength is 37.09MPa；Bending strength is 47.26MPa；Impact strength is 23.30kJ/m2。
Embodiment 3
A kind of modified abandoned printed substrate non-metal powder/composite polyethylene material, the composite include：Modified non-metal powder
And polyethylene, the weight ratio of modified non-metal powder and polyethylene is 1：3.Wherein, modified non-metal powder includes：Non-metal powder and oxygen
The weight ratio of graphite alkene, non-metal powder and graphene oxide is 100：3.
Non-metal powder is the abandoned printed circuit board non-metal powder that particle diameter is the mesh of 40 mesh ~ 60.
Non-metal powder is to be existed by abandoned printed circuit board non-metal powder 110g and 330mL the 4mol/L nitric acid of the mesh of 40 mesh ~ 60
Lower 80 DEG C of normal pressure reacts obtained non-metal powder.
Embodiment 4
The preparation method of modified abandoned printed substrate non-metal powder/composite polyethylene material of embodiment 3, with embodiment 2
Preparation method is identical, and the concentration for distinguishing the graphene oxide dispersion for being to prepare in step 3 is 0.5g/L, and dispersion liquid is second
Alcohol, the speed of stirring is 200rpm/min；Non-metal powder and polyethylene are modified in step 4 with weight than 1:3 blendings.
By Mechanics Performance Testing, modified abandoned printed substrate non-metal powder/composite polyethylene material of embodiment 3
Tensile strength is 41.26MPa；Bending strength is 48.94MPa；Impact strength is 33.96kJ/m2。
Embodiment 5
A kind of modified abandoned printed substrate non-metal powder/composite polyethylene material, the composite include：Modified non-metal powder
And polyethylene, the weight ratio of modified non-metal powder and polyethylene is 1：4.Wherein, modified non-metal powder includes：Non-metal powder and oxygen
The weight ratio of graphite alkene, non-metal powder and graphene oxide is 100：3.
Non-metal powder is the abandoned printed circuit board non-metal powder that particle diameter is the mesh of 60 mesh ~ 80.
Non-metal powder is to be existed by abandoned printed circuit board non-metal powder 110g and 330mL the 4mol/L nitric acid of the mesh of 60 mesh ~ 80
Lower 80 DEG C of normal pressure reacts obtained non-metal powder.
Embodiment 6
The preparation method of modified abandoned printed substrate non-metal powder/composite polyethylene material of embodiment 5, with embodiment 2
Preparation method is identical, and the particle diameter for distinguishing the abandoned printed circuit board non-metal powder for being to sort to obtain in step 1 is 40 mesh ~ 60
Mesh, the concentration of the graphene oxide dispersion prepared in step 3 is 0.5g/L, and dispersion liquid is ethylene glycol, is modified in step 4
Non-metal powder is with polyethylene with weight than 1:4 blendings.
By Mechanics Performance Testing, modified abandoned printed substrate non-metal powder/composite polyethylene material of embodiment 5
Tensile strength is 37.72MPa；Bending strength is 50.22MPa；Impact strength is 39.11kJ/m2。
Embodiment 7
A kind of modified abandoned printed substrate non-metal powder/composite polyethylene material, the composite include：Modified non-metal powder
And polyethylene, the weight ratio of modified non-metal powder and polyethylene is 1：3.Wherein, modified non-metal powder includes：Non-metal powder and oxygen
The weight ratio of graphite alkene, non-metal powder and graphene oxide is 100：3.
Non-metal powder is the abandoned printed circuit board non-metal powder that particle diameter is the mesh of 80 mesh ~ 100.
Non-metal powder is by abandoned printed circuit board non-metal powder 110g and 330mL the 4mol/L nitric acid of the mesh of 80 mesh ~ 100
80 DEG C are reacted obtained non-metal powder at ambient pressure.
Embodiment 8
The preparation method of modified abandoned printed substrate non-metal powder/composite polyethylene material of embodiment 7, with embodiment 2
Preparation method is identical, difference be to sort in step 1 the particle diameter of obtained abandoned printed circuit board non-metal powder for 80 mesh ~
100 mesh, the concentration of the graphene oxide dispersion prepared in step 3 is 10g/L, and dispersion liquid is the aqueous solution of ethanol.
By Mechanics Performance Testing, modified abandoned printed substrate non-metal powder/composite polyethylene material of embodiment 7
Tensile strength is 37.99MPa；Bending strength is 52.34MPa；Impact strength is 42.06kJ/m2。
Embodiment 9
A kind of modified abandoned printed substrate non-metal powder/PP composite material, the composite include：Modified non-metal powder
And polypropylene, modified non-metal powder and polyacrylic weight ratio are 1：1.5.Wherein, modified non-metal powder includes：Non-metal powder and
The weight ratio of graphene oxide, non-metal powder and graphene oxide is 100：10.
Non-metal powder is the abandoned printed circuit board non-metal powder that particle diameter is the mesh of 80 mesh ~ 100.
Non-metal powder is by abandoned printed circuit board non-metal powder 110g and 550mL the 2mol/L nitric acid of the mesh of 80 mesh ~ 100
90 DEG C are reacted obtained non-metal powder at ambient pressure.
Embodiment 10
The preparation method of modified abandoned printed substrate non-metal powder/PP composite material of embodiment 9, with embodiment 2
Preparation method is identical, difference be to sort in step 1 the particle diameter of obtained abandoned printed circuit board non-metal powder for 80 mesh ~
100 mesh, the concentration of the graphene oxide dispersion prepared in step 3 is 0.1g/L, and dispersion liquid is the aqueous solution of ethylene glycol.
By Mechanics Performance Testing, modified abandoned printed substrate non-metal powder/PP composite material of embodiment 7
Tensile strength is 37.21MPa；Bending strength is 46.51MPa；Impact strength is 5.13kJ/m2。
Modified abandoned printed substrate non-metal powder/composite polyolefine material of the present invention is widely used, can be used for electronics
The fields such as electric equipment products, automobile, agricultural, transportation, chemical industry, daily life.
In summary, modified abandoned printed substrate non-metal powder/composite polyolefine material of the invention and its preparation side
Method, the composite utilize the hydrophobicity and hydrophily of graphene oxide, it is possible to increase the compatibility of non-metal powder and polyolefin,
And the mechanical property of composite is improved, there is good practical prospect.
Although present disclosure is discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for the present invention's
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (10)
- A kind of 1. modified abandoned printed substrate non-metal powder/composite polyolefine material, it is characterised in that the composite bag Contain：The weight ratio of modified non-metal powder and polyolefin, described modification non-metal powder and polyolefin is 10 ~ 50：50~90；Wherein, described modification non-metal powder includes：Non-metal powder and graphene oxide, described non-metal powder and graphite oxide The weight ratio of alkene is 100：0.1~10；Described non-metal powder is the non-metal powder obtained by abandoned printed circuit board non-metal powder and inorganic acid reaction.
- 2. modified abandoned printed substrate non-metal powder/composite polyolefine material according to claim 1, its feature exist In described polyolefin is polyethylene and/or polypropylene.
- 3. modified abandoned printed substrate non-metal powder/composite polyolefine material according to claim 1, its feature exist In the particle diameter of, described non-metal powder be the mesh of 20 mesh ~ 180.
- 4. modified abandoned printed substrate non-metal powder/composite polyolefine material according to claim 1, its feature exist In described inorganic acid includes：In hydrochloric acid, sulfuric acid, nitric acid and phosphoric acid any one or it is two or more.
- 5. modified abandoned printed substrate non-metal powder/polyolefin in a kind of 1-4 according to claim described in any one is multiple The preparation method of condensation material, it is characterised in that this method includes：Step 1：Abandoned printed circuit board is crushed, sorted, reclaims non-metal powder, and screens and collects the nonmetallic of different meshes Powder；Step 2：The non-metal powder being collected into is added in inorganic acid, reaction makes non-metal powder surface have polar group, mistake Filter, is washed till neutrality, dries；Step 3：Dispersant for ultrasonic dispersion is added graphene oxide into, obtains graphene oxide dispersion, by the oxidation stone Black alkene dispersion liquid is added in the non-metal powder after the processing that step 2 obtains, high-speed stirred, is dried, is obtained being modified non-metal powder；Step 4：By described modification non-metal powder and polyolefin blend, melting extrusion is granulated, and obtains modified abandoned printed wire Plate non-metal powder/composite polyolefine material.
- 6. the preparation method of modified abandoned printed substrate non-metal powder/composite polyolefine material according to claim 5, Characterized in that, in step 2, the weight of described non-metal powder：The volume of inorganic acid is 1g：3 ~ 10mL, described is inorganic Acid concentration is 1 ~ 8mol/L.
- 7. the preparation method of modified abandoned printed substrate non-metal powder/composite polyolefine material according to claim 5, Characterized in that, in step 2, the reaction time is 0.5h ~ 20h, temperature is 50 DEG C~95 DEG C.
- 8. the preparation method of modified abandoned printed substrate non-metal powder/composite polyolefine material according to claim 5, Characterized in that, in step 3, described dispersant includes：Water, ethanol, methanol, ethylene glycol, tetrahydrofuran, N, N- dimethyl In formamide and dimethyl sulfoxide any one or it is two or more.
- 9. the preparation method of modified abandoned printed substrate non-metal powder/composite polyolefine material according to claim 5, Characterized in that, in step 3, the concentration of described graphene oxide dispersion is 0.1 g/L ~ 10g/L；Described high-speed stirring The speed mixed is 120~200rpm/min, and the time of described high-speed stirred is 10 ~ 30min.
- 10. the preparation side of modified abandoned printed substrate non-metal powder/composite polyolefine material according to claim 5 Method, it is characterised in that in step 4, described melting extrusion temperature is 200 DEG C ~ 250 DEG C.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116102323A (en) * | 2023-04-12 | 2023-05-12 | 广东龙湖科技股份有限公司 | High-ductility concrete based on modified waste PCB coarse particles and preparation method thereof |
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| YANHONG ZHENG ET.AL: "The reuse of nonmetals recycled from waste printed circuit boards as reinforcing fillers in the polypropylene composites", 《JOURNAL OF HAZARDOUS MATERIALS》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116102323A (en) * | 2023-04-12 | 2023-05-12 | 广东龙湖科技股份有限公司 | High-ductility concrete based on modified waste PCB coarse particles and preparation method thereof |
| CN116102323B (en) * | 2023-04-12 | 2023-06-27 | 广东龙湖科技股份有限公司 | High-ductility concrete based on modified waste PCB coarse particles and preparation method thereof |
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|---|---|
| CN107353482B (en) | 2019-07-05 |
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