CN111574806A - Method for treating thermosetting plastic waste - Google Patents
Method for treating thermosetting plastic waste Download PDFInfo
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- CN111574806A CN111574806A CN201910119082.4A CN201910119082A CN111574806A CN 111574806 A CN111574806 A CN 111574806A CN 201910119082 A CN201910119082 A CN 201910119082A CN 111574806 A CN111574806 A CN 111574806A
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- thermosetting plastic
- plastic waste
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- waste
- mixing
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- 229920001187 thermosetting polymer Polymers 0.000 title claims abstract description 38
- 239000013502 plastic waste Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000002156 mixing Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 15
- 239000002131 composite material Substances 0.000 claims abstract description 14
- 239000002245 particle Substances 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 238000003825 pressing Methods 0.000 claims abstract description 4
- 238000005096 rolling process Methods 0.000 claims abstract description 4
- 239000002912 waste gas Substances 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims description 30
- 239000002023 wood Substances 0.000 claims description 28
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims description 13
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 11
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 11
- 239000000395 magnesium oxide Substances 0.000 claims description 11
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 11
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 11
- 229920001568 phenolic resin Polymers 0.000 claims description 11
- 239000005011 phenolic resin Substances 0.000 claims description 11
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 11
- 239000006229 carbon black Substances 0.000 claims description 10
- 239000012764 mineral filler Substances 0.000 claims description 7
- 235000013824 polyphenols Nutrition 0.000 claims description 7
- 239000003086 colorant Substances 0.000 claims description 6
- 235000013312 flour Nutrition 0.000 claims description 6
- 239000002699 waste material Substances 0.000 claims description 5
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 229940034610 toothpaste Drugs 0.000 claims description 4
- 239000000606 toothpaste Substances 0.000 claims description 4
- 229920000877 Melamine resin Polymers 0.000 claims description 3
- 229920001807 Urea-formaldehyde Polymers 0.000 claims description 3
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 claims description 3
- 229920006305 unsaturated polyester Polymers 0.000 claims description 3
- 150000007974 melamines Chemical class 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 7
- 239000000945 filler Substances 0.000 abstract description 3
- 230000035484 reaction time Effects 0.000 abstract description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000005406 washing Methods 0.000 description 12
- 238000001914 filtration Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 229920001342 Bakelite® Polymers 0.000 description 6
- 239000004637 bakelite Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000001035 drying Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 4
- 239000000284 extract Substances 0.000 description 4
- 238000002791 soaking Methods 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 3
- 238000010298 pulverizing process Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920001169 thermoplastic Polymers 0.000 description 3
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 206010010356 Congenital anomaly Diseases 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000000703 high-speed centrifugation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000002085 irritant Substances 0.000 description 1
- 231100000021 irritant Toxicity 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000010517 secondary reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
- C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention discloses a method for treating thermosetting plastic waste, which comprises the following steps of putting the thermosetting plastic waste into a slow-speed rolling type crusher for crushing, controlling the particle fineness to be 40-80 meshes at the rotation speed of the crusher of 150-; mixing the crushed thermosetting plastic waste and the composite material in proportion to form a mixture; the mixture is put into an auger type cold press, and is mixed and granulated after cold pressing and stirring, heating is not needed in the process, and waste gas pollution is avoided. The thermosetting plastic waste material does not participate in chemical change and is only used as a filler, the theoretical reaction time is reduced by 40 percent compared with the forming speed of a common material, and the thermosetting plastic waste material which cannot be reused originally is changed into a raw material again for use.
Description
Technical Field
The invention relates to a method for treating thermosetting plastic waste, belonging to the technical field of plastic granulation.
Background
Along with the rapid development of social economy and industry, considerable economic benefits are brought, and the living standard of common people is improved. The environmental protection problem is also increasingly paid attention to, and the plastic industry is an indispensable molecule in life and industrial production, as low as family kitchen, and as high as military industry and aerospace, the shadow can be seen everywhere. With the increasing of environmental protection investigation and treatment of government related departments in recent years, a plurality of industrial garbage disposal problems which have to be generated in the plastic industrial production are also deeply troubling a plurality of enterprises.
Plastics can be divided into two broad categories depending on their molding conditions: thermoplastic and thermoset. Thermoplastics have now been subjected to well-established recycling processes because of their relatively simple molding conditions (physical reaction, reversibility). The thermosetting plastic has the congenital advantages that the molding conditions are relatively complex (high temperature and high pressure are needed and chemical reaction is adopted, the molding is irreversible) and the finished product has higher high temperature resistance, aging resistance, strength and other properties than common thermoplastic plastics, so that the field of recycling of the thermosetting plastic is blank at home. The injection molding manufacturer inevitably produces material handles and defective products in the production process, and the total proportion of the material handles and the rejection rate is 15%, so that the amount of waste materials flowing into the society every year can be counted by thousands of tons. The general injection molding manufacturers do not have the capacity of treating the industrial garbage and can only carry out unified recovery, landfill and incineration treatment.
Only a few enterprises experimentally use the ground crop boiler fuel, but high-temperature incineration can generate a large amount of irritant gas, so that the environment pollution is serious. The economic value of the waste materials is far higher than that of common fuels, and the waste materials are wasted on social resources. And the enterprises process the waste materials by a high-speed centrifugation method, the method cannot effectively control the granularity during processing, more fine powder with the granularity larger than 1000 meshes is generated, and the fine powder can cause secondary pollution if not properly processed.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method for treating thermosetting plastic waste.
The technical problem to be solved by the invention can be realized by the following technical scheme:
a method for treating thermosetting plastic waste comprises the following steps:
s1, putting the thermosetting plastic waste into a slow-speed rolling type crusher for crushing, wherein the rotation speed of the crusher is 150-;
s2, mixing the crushed thermosetting plastic waste and the composite material in proportion to form a mixture;
and S3, putting the mixture into an auger type cold press, mixing and granulating after cold pressing and stirring, wherein heating is not required in the process, and no waste gas pollution is caused.
Preferably, the thermosetting plastic waste includes, but is not limited to, phenolics, modified phenolics, dry unsaturated polyesters, melamine, urea formaldehyde.
Preferably, the composite material is prepared from the following raw materials in percentage by weight:
50% -55% of phenolic resin;
10-40% of wood powder;
10-20% of mineral filler;
10-13% of urotropin;
0.5-2% of a coloring agent;
1-3% of zinc stearate;
1-3% of magnesium oxide;
uniformly mixing the raw materials and the purified wood powder, and plasticating, crushing and granulating.
Preferably, the fineness of the wood flour is 80-100 meshes, the water content is less than or equal to 10%, the apparent density is 0.15-0.27 g/cm3, and the ash content is less than 3%.
Preferably, the mineral filler is toothpaste grade aluminum hydroxide.
Preferably, the colorant is carbon black.
Preferably, the mixing ratio of the thermosetting plastic waste and the composite material is 4: 6.
The invention has the beneficial effects that: the proportion of the wood powder and the mineral filler in the composite material is lower than that of the conventional bakelite powder, and the proportion of the phenolic resin is higher than that of the conventional bakelite powder by about 10-15%, so that the composite material has higher fluidity and compatibility, more resin provides better adhesiveness and compatibility in the secondary reaction process with reacted thermosetting plastic waste (especially reacted bakelite powder particles), and the reacted bakelite powder particles with specific particle sizes provide better filling effect so as to improve the strength after reaction.
The above reactions are all chemical changes, the time consumption is long, and the proportion of the composite material and the reacted thermosetting plastic particles is as follows: 4 percent of reacted thermosetting plastic particles do not participate in chemical changes and only serve as fillers, and the theoretical reaction time is reduced by 40 percent compared with the forming speed of common materials.
Although the resin content of the formula is 10-15% higher than that of the common material, the addition proportion of the finished product material of the formula is only 60-70% in the actual mixing process with the reacted bakelite powder particles, the total consumption is reduced by 30-40%, the requirement on the consumption of raw materials is also reduced, and the formula is more environment-friendly.
Detailed Description
The invention discloses a method for treating thermosetting plastic waste, which comprises the following steps:
s1, putting the thermosetting plastic waste into a slow-speed rolling type crusher for crushing, wherein the rotation speed of the crusher is 150-;
s2, mixing the crushed thermosetting plastic waste and the composite material in proportion to form a mixture;
and S3, putting the mixture into an auger type cold press, mixing and granulating after cold pressing and stirring, wherein heating is not required in the process, and no waste gas pollution is caused.
Preferably, the thermosetting plastic waste includes, but is not limited to, phenolics, modified phenolics, dry unsaturated polyesters, melamine, urea formaldehyde.
The composite material is prepared from the following raw materials in percentage by weight:
50% -55% of phenolic resin;
10-40% of wood powder;
10-20% of mineral filler;
10-13% of urotropin;
0.5-2% of a coloring agent;
1-3% of zinc stearate;
1-3% of magnesium oxide;
the invention uses phenolic resin as adhesive, which can meet the requirements of the process on the indexes of resin softening point, viscosity, gel time, etc., and control the content of harmful substances such as free phenol, free formaldehyde, etc., so that the content of free phenol is less than 1 percent, and the invention can meet the indexes of phenol extract and aniline extract.
The invention uses wood flour as a reinforcing material, the fineness of the wood flour is 80-100 meshes, the water content is less than or equal to 10%, and the apparent density is 0.15-0.27 g/cm3Ash content is less than 3%. The wood powder is purified by citric acid, so that soluble impurities can be removed, and the index requirement of the total extract is met. The amount of the wood powder accounts for 10-40% of the weight of the phenolic molding compound which can effectively contain the reacted thermosetting plastic, but the mass ratio of 10-20% is relatively better.
The mineral filler used in the invention is toothpaste-grade aluminum hydroxide, which ensures good heat resistance, flame retardance and electrical insulation performance of the material, and the toothpaste-grade aluminum hydroxide raw material is treated at high temperature of 1200 ℃, so that the toothpaste-grade aluminum hydroxide has stable chemical properties.
The invention uses urotropine as a curing agent, and the particle size is 200-300 meshes. Urotropine itself belongs to a medium-toxicity chemical, ammonia is released in a curing reaction, so the dosage of the urotropine is strictly controlled to control the content of harmful substances such as free ammonia, and the excellent processing performance of the material is ensured to meet the requirements of an injection molding process.
The colorants of the present invention employ carbon black designated as manufactured by cabot corporation, usa. Carbon black produced by the company cabot, usa, has excellent blackness, strong tinting strength and excellent dispersibility and stability, and can meet the index requirements of total extracts.
The additive is lubricant zinc stearate and the curing accelerator is magnesium oxide, wherein the weight percentage of the addition amount of the zinc stearate is 1-3%, and the weight percentage of the addition amount of the magnesium oxide is 1-3%.
The preparation method of the composite material comprises the following steps:
s1, purifying the wood powder, immersing the wood powder into a citric acid solution with the weight percentage concentration of 3-4%, washing for 2-3 h, filtering, washing for 0.5-1 h with clear water, dewatering and drying;
s2, mixing the above raw materials with the wood powder purified by S1, plasticating, pulverizing and granulating.
The present invention is further illustrated by the following examples, but is not limited to the scope of the present invention.
Example 1
And (3) soaking 20kg of wood powder into a citric acid solution with the weight percentage concentration of 3-4% for washing for 2 hours, filtering, washing for half an hour by using clear water, removing water and drying.
52kg of phenolic resin is crushed, and is uniformly mixed with 20kg of wood powder purified by citric acid, 10kg of urotropine, 12kg of toothpaste grade aluminum hydroxide, 2kg of carbon black, 1.5kg of magnesium oxide and 2kg of zinc stearate, and then plasticated, crushed and granulated.
Example 2
15kg of wood powder is soaked in citric acid solution with the weight percentage concentration of 3-4% for washing for 2 hours, and then washed by clear water for half an hour after filtration, dewatered and dried.
Pulverizing 55kg phenolic resin, mixing with 15kg wood powder purified with citric acid, 10kg urotropine, 15kg toothpaste grade aluminum hydroxide, 2kg carbon black, 1kg magnesium oxide and 3kg zinc stearate, plasticating, pulverizing and granulating.
Example 3
And (3) soaking 20kg of wood powder into a citric acid solution with the weight percentage concentration of 3-4% for washing for 2 hours, filtering, washing for half an hour by using clear water, removing water and drying.
52kg of phenolic resin is crushed, and is uniformly mixed with 20kg of wood powder purified by citric acid, 13kg of urotropine, 16kg of toothpaste-grade aluminum hydroxide, 3kg of carbon black, 3kg of magnesium oxide and 1.5kg of zinc stearate, and then plasticated, crushed and granulated.
Example 4
50kg of wood powder is soaked in citric acid solution with the weight percentage concentration of 3-4% for washing for 2 hours, and then washed by clear water for half an hour after filtration, dewatered and dried.
110kg of phenolic resin is crushed, and is uniformly mixed with 50kg of wood powder purified by citric acid, 32kg of urotropine, 30kg of toothpaste-grade aluminum hydroxide, 5kg of carbon black, 1.5kg of magnesium oxide and 4kg of zinc stearate, and then plasticated, crushed and granulated.
Example 5
And (3) soaking 20kg of wood powder into a citric acid solution with the weight percentage concentration of 3-4% for washing for 2 hours, filtering, washing for half an hour by using clear water, removing water and drying.
52kg of phenolic resin is crushed, and is uniformly mixed with 20kg of wood powder purified by citric acid, 12kg of urotropine, 12.5kg of toothpaste-grade aluminum hydroxide, 2kg of carbon black, 1.5kg of magnesium oxide and 2kg of zinc stearate, and then plasticated, crushed and granulated.
Example 6
And (3) soaking 69kg of wood flour into a citric acid solution with the weight percentage concentration of 3-4% for washing for 2 hours, filtering, washing for half an hour by using clear water, removing water and drying.
162kg of phenolic resin is crushed, and is uniformly mixed with 59kg of wood powder purified by citric acid, 38.5kg of urotropine, 33.5kg of toothpaste-grade aluminum hydroxide, 6kg of carbon black, 1.5kg of magnesium oxide and 5kg of zinc stearate, and then plasticated, crushed and granulated.
The inventor mixes the composite material prepared by the invention and obtained by the above embodiment with the thermosetting plastic waste material in proportion, puts the mixture into a plastic granulator, and measures the performance indexes of mixing and granulating after heating and stirring, wherein the specific indexes are as follows:
through the embodiment and the comparison with the common bakelite powder particles, the reacted thermosetting plastic waste particles are added in the mixing process, and the particles are only used as fillers and do not participate in chemical reaction in the subsequent forming processing, so that the reaction time is greatly reduced, the efficiency is further improved, and the energy consumption is reduced.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A method for treating thermosetting plastic waste, characterized by comprising the steps of,
s1, putting the thermosetting plastic waste into a slow-speed rolling type crusher for crushing, wherein the rotation speed of the crusher is 150-;
s2, mixing the crushed thermosetting plastic waste and the composite material in proportion to form a mixture;
and S3, putting the mixture into an auger type cold press, mixing and granulating after cold pressing and stirring, wherein heating is not required in the process, and no waste gas pollution is caused.
2. The method of claim 1, wherein the waste thermosetting plastic materials include, but are not limited to, phenolics, modified phenolics, dry unsaturated polyesters, melamines, urea formaldehyde.
3. The method for treating thermosetting plastic waste material according to claim 1, wherein the composite material is prepared from the following raw materials in percentage by weight:
50% -55% of phenolic resin;
10-40% of wood powder;
10-20% of mineral filler;
10-13% of urotropin;
0.5-2% of a coloring agent;
1-3% of zinc stearate;
1-3% of magnesium oxide;
uniformly mixing the raw materials and the purified wood powder, and plasticating, crushing and granulating.
4. The method for treating the thermosetting plastic waste material, according to claim 3, characterized in that the wood flour has a fineness of 80-100 mesh, a moisture content of 10% or less, an apparent density of 0.15-0.27 g/cm3, and an ash content of 3% or less.
5. The method of claim 3, wherein the mineral filler is toothpaste grade aluminum hydroxide.
6. The method for treating thermosetting plastic waste according to claim 3, wherein the particle size of urotropin is 200 to 300 mesh.
7. The method for treating thermosetting plastic waste according to claim 3, wherein the colorant is carbon black.
8. The method for treating thermosetting plastic waste material according to claim 3, wherein the wood flour is preferably 10 to 20%.
9. The method for processing thermosetting plastic waste according to claim 3, wherein the mixing ratio of the thermosetting plastic waste and the composite material is 4: 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910119082.4A CN111574806A (en) | 2019-02-18 | 2019-02-18 | Method for treating thermosetting plastic waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910119082.4A CN111574806A (en) | 2019-02-18 | 2019-02-18 | Method for treating thermosetting plastic waste |
Publications (1)
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| CN111574806A true CN111574806A (en) | 2020-08-25 |
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| CN201910119082.4A Pending CN111574806A (en) | 2019-02-18 | 2019-02-18 | Method for treating thermosetting plastic waste |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1454766A (en) * | 2003-05-16 | 2003-11-12 | 林良菽 | Phenolic moulding composition waste matter treating and processing method |
| CN104448694A (en) * | 2014-12-10 | 2015-03-25 | 广东品翔环保科技有限公司 | Process for recycling, regenerating and molding waste phenolic resin composite materials |
| CN107216669A (en) * | 2017-07-10 | 2017-09-29 | 上海欧亚合成材料有限公司 | Phenolic resin and recoverying and utilizing method while biochemical sludge in phenol resin production waste water processing |
-
2019
- 2019-02-18 CN CN201910119082.4A patent/CN111574806A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1454766A (en) * | 2003-05-16 | 2003-11-12 | 林良菽 | Phenolic moulding composition waste matter treating and processing method |
| CN104448694A (en) * | 2014-12-10 | 2015-03-25 | 广东品翔环保科技有限公司 | Process for recycling, regenerating and molding waste phenolic resin composite materials |
| CN107216669A (en) * | 2017-07-10 | 2017-09-29 | 上海欧亚合成材料有限公司 | Phenolic resin and recoverying and utilizing method while biochemical sludge in phenol resin production waste water processing |
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Application publication date: 20200825 |