CN109176969A - A kind of waste plastics recovery method - Google Patents
A kind of waste plastics recovery method Download PDFInfo
- Publication number
- CN109176969A CN109176969A CN201810990899.4A CN201810990899A CN109176969A CN 109176969 A CN109176969 A CN 109176969A CN 201810990899 A CN201810990899 A CN 201810990899A CN 109176969 A CN109176969 A CN 109176969A
- Authority
- CN
- China
- Prior art keywords
- waste plastics
- recovery method
- pmma
- methacrylate
- composite reactive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229920003023 plastic Polymers 0.000 title claims abstract description 105
- 239000004033 plastic Substances 0.000 title claims abstract description 105
- 239000002699 waste material Substances 0.000 title claims abstract description 93
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000011084 recovery Methods 0.000 title claims abstract description 20
- 239000002904 solvent Substances 0.000 claims abstract description 35
- 239000002131 composite material Substances 0.000 claims abstract description 29
- 230000008961 swelling Effects 0.000 claims abstract description 23
- 238000001816 cooling Methods 0.000 claims abstract description 16
- 239000011248 coating agent Substances 0.000 claims abstract description 11
- 238000000576 coating method Methods 0.000 claims abstract description 11
- 239000003960 organic solvent Substances 0.000 claims abstract description 9
- 238000013467 fragmentation Methods 0.000 claims abstract description 7
- 238000006062 fragmentation reaction Methods 0.000 claims abstract description 7
- 238000007711 solidification Methods 0.000 claims abstract description 5
- 230000008023 solidification Effects 0.000 claims abstract description 5
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 42
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 42
- JLTDJTHDQAWBAV-UHFFFAOYSA-N N,N-dimethylaniline Chemical compound CN(C)C1=CC=CC=C1 JLTDJTHDQAWBAV-UHFFFAOYSA-N 0.000 claims description 23
- -1 tertiary amines organic compound Chemical class 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 18
- 239000000843 powder Substances 0.000 claims description 18
- 239000002002 slurry Substances 0.000 claims description 18
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 16
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 14
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 14
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 13
- 239000000049 pigment Substances 0.000 claims description 13
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical group O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 12
- 239000001023 inorganic pigment Substances 0.000 claims description 12
- 239000000178 monomer Substances 0.000 claims description 12
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 claims description 11
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical group CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 10
- 239000000853 adhesive Substances 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 10
- 239000011521 glass Substances 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- 125000000864 peroxy group Chemical group O(O*)* 0.000 claims description 9
- 239000005341 toughened glass Substances 0.000 claims description 9
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 claims description 8
- 239000003999 initiator Substances 0.000 claims description 8
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 229920000715 Mucilage Polymers 0.000 claims description 6
- 239000012467 final product Substances 0.000 claims description 6
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 6
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 6
- 239000000347 magnesium hydroxide Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 238000006116 polymerization reaction Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 239000004408 titanium dioxide Substances 0.000 claims description 6
- JUVSRZCUMWZBFK-UHFFFAOYSA-N 2-[n-(2-hydroxyethyl)-4-methylanilino]ethanol Chemical compound CC1=CC=C(N(CCO)CCO)C=C1 JUVSRZCUMWZBFK-UHFFFAOYSA-N 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- VDMLVOIDGSOUTA-UHFFFAOYSA-N 2-(4-methylanilino)ethane-1,1-diol Chemical compound CC1=CC=C(NCC(O)O)C=C1 VDMLVOIDGSOUTA-UHFFFAOYSA-N 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims 2
- CHIHQLCVLOXUJW-UHFFFAOYSA-N benzoic anhydride Chemical compound C=1C=CC=CC=1C(=O)OC(=O)C1=CC=CC=C1 CHIHQLCVLOXUJW-UHFFFAOYSA-N 0.000 claims 1
- 235000019441 ethanol Nutrition 0.000 claims 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 abstract description 5
- 230000001988 toxicity Effects 0.000 abstract description 4
- 231100000419 toxicity Toxicity 0.000 abstract description 4
- 230000003796 beauty Effects 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000005498 polishing Methods 0.000 abstract description 3
- 238000000748 compression moulding Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 4
- 229960000935 dehydrated alcohol Drugs 0.000 description 4
- 238000004513 sizing Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 238000005496 tempering Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010812 mixed waste Substances 0.000 description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000011978 dissolution method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- XYIBRDXRRQCHLP-UHFFFAOYSA-N ethyl acetoacetate Chemical compound CCOC(=O)CC(C)=O XYIBRDXRRQCHLP-UHFFFAOYSA-N 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000010128 melt processing Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000004209 oxidized polyethylene wax Substances 0.000 description 1
- 235000013873 oxidized polyethylene wax Nutrition 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
- B29B17/0412—Disintegrating plastics, e.g. by milling to large particles, e.g. beads, granules, flakes, slices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B2017/001—Pretreating the materials before recovery
-
- 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
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
-
- 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
Abstract
The invention discloses a kind of waste plastics recovery methods, the processes such as fragmentation processing, preimpregnation swelling, the composite reactive solvent removal of free state, compression molding, vacuum solidification, cooling and demolding, surface coating including waste plastics.It is few that this method recycles waste plastics simple process, equipment investment, and has the features such as low energy consumption, pollution is few, small toxicity, at low cost.Prepared plastic plate reduces the usage amount of organic solvent, after then carrying out surface coating, has excellent glossiness and shore hardness, wearability, adhesion performance.It is few that this method recycles waste plastics simple process, equipment investment, and has the features such as low energy consumption, pollution is few, small toxicity, at low cost.Prepared plastic plate can any sanding and polishing, can match in excellence or beauty with popular acrylic panel currently on the market, can be using the high shunting yard institutes such as curtain wall panel, acrylic board be replaced, added value is high.
Description
Technical field
The present invention relates to a kind of waste treatment technique, in particular to a kind of waste plastics recovery method belongs to plastic applications.
Background technique
Currently, the resource utilization reutilization technology of waste plastics increasingly attracts people's attention.It includes that mixed type is useless
The recovery and reuse technology of plastics and single variety waste plastics.Wherein, the recovery and reuse technology of mixed waste plastic includes molten
Solution prepares coating and adhesive, pyrolysis, power generation by waste combustion etc.；The recovery and reuse technology of single variety waste plastics includes with machine
Tool blending method, solvent dissolution method and hot melt processing method produce coating, adhesive and plate etc..Especially for producing plate, need
It to be sorted for waste plastics, sorting work is extremely complex；According to mixed waste plastic produce plate, but exist color and
The different problem of performance, especially color are widely different because batch produces, and seriously affect its use.And the use of organic solvent
Amount is big, and some toxicity is also big.
Summary of the invention
The purpose of the present invention is intended to use mixed type plastics-production plate, solves the problems, such as plate surface colour consistency, and
Reach high optical property, reducing waste plastics pretreatment process, reducing production cost, improve the decorative effect of plate and uses class
On the basis of and provide a kind of waste plastics recovery method.
The present invention is realized by following technical proposals.
A kind of waste plastics recovery method, includes the following steps:
1) the fragmentation processing of waste plastics
Waste plastics is broken by a millimeter grade particles using plastic breaker；
2) preimpregnation swelling
Waste plastics is immersed in 1-3h in composite reactive solvent, occurs block-like waste plastics swelling in composite reactive solvent
Body；
3) the composite reactive solvent removal of free state
The compound of block-like waste plastics swelling body and free state in composite reactive solvent is submerged in using mode of vibration
Active solvent separation；
4) it is pressed and molded
Waste plastics swelling body is placed in tempered glass, is pressed and molded, upper clamper；
5) vacuum solidification
It is placed in 30-40 DEG C, after vacuum degree is solidifying and setting 2-4h in the baking oven of 0.07-0.09Mpa, cope plate is changed to
Frame-shaped tempered glass is placed in 60-80 DEG C after upper clamper again, and vacuum degree is solidifying and setting 3- in the baking oven of 0.07-0.09Mpa
6h；
6) it cooling and demolding: is cooled to room temperature and demoulds to obtain waste plastics plate；
7) surface coating: one layer of PMMA slurry is covered in waste plastics plate surface, is covered with the useless modeling of PMMA film to obtain the final product after cured
Flitch.
Preferably, the composite reactive solvent is that organic solvent and methacrylate-based monomer are mixed according to mass ratio 1:1
The mixed liquor of conjunction, wherein dissolved with according to the organic peroxy class initiation that mass ratio is 2:3 mixing in methacrylate-based monomer
Agent and N, N tertiary amines organic compound.
Preferably, the organic peroxy class initiator and N, N tertiary amines organic compound total amount are methyl acrylic ester
The 0.15-0.30% of monomer.
Preferably, the organic solvent is the mixture of one or both of acetone and dehydrated alcohol.
Preferably, the methacrylate-based monomer is methyl methacrylate, ethyl methacrylate, methyl-prop
One of olefin(e) acid butyl ester or a variety of mixtures.
Preferably, the organic peroxy class initiator is benzoyl peroxide.
Preferably, the N, N tertiary amines organic compound be n,N-Dimethylaniline, N, N- dihydroxyethyl p-toluidine or
It is one or more of in N, N- dihydroxypropyl para-totuidine.
Preferably, surface coating is to scratch PMMA slurry in waste plastics plate surface, is placed in containing chilled glass die
In, cold pressing sizing, it is to obtain to surface to cover the useless of PMMA film that 25-35 DEG C, which solidifies 2-4h, 100-120 DEG C of processing 1-2h, cooling and demoldings,
Plastic plate.
Preferably, PMMA slurry are as follows: the methyl methacrylate that gross mass is N molds in powder mixture with PMMA to be added
The oxidation of trimethylamine the class compound, the benzoyl peroxide of 0.12%-0.24%N, 2%-4%N of 0.08%-0.16%N
The reflective pigment of polyethylene wax powder, the magnesium hydroxide of 40%-60%N and 2%-5%N；It is agitated to form the high mucilage of high dispersive
Material, then it is placed in 40-50 DEG C of pre-polymerization 10-20min, what cooling obtained；
Wherein, methyl methacrylate and PMMA Moulding powder are mixed according to mass ratio for the ratio of 1:(0.1-0.4).
Preferably, the trimethylamine class compound is n,N-Dimethylaniline, N, N- dihydroxyethyl p-toluidine or N,
It is one or more of in N- dihydroxypropyl para-totuidine；
The reflective pigment is that titanium dioxide and infrared external reflection inorganic pigment, infrared external reflection inorganic pigment, infrared external reflection are inorganic
The mixture of one or more of pigment.
The present invention has the advantages that due to taking above technical scheme
Compared with the existing technology, waste plastics plate is formed, the usage amount of organic solvent is reduced, after then carrying out surface coating,
Shore hardness is greater than 88HD, and 50cm is impacted without cracking, and wearability (g/100r) is less than 0.11, and adhesive force is 0 grade, and glossiness is greater than
90 °, contact angle is greater than 80 °.
It is few that this method recycles waste plastics simple process, equipment investment, and with low energy consumption, pollutes less, small toxicity, cost
The features such as low.Prepared plastic plate can any sanding and polishing, can match in excellence or beauty with popular acrylic panel currently on the market, generation can be applied
For the high shunting yard institute such as curtain wall panel, acrylic board, added value is high.
Specific embodiment
Below in conjunction with specific embodiment, the present invention will be described in detail, herein illustrative examples and explanation of the invention
For explaining the present invention, but it is not as a limitation of the invention.
A kind of waste plastics recovery method of the present invention, includes the following steps:
1) the fragmentation processing of waste plastics
Waste plastics is broken by a millimeter grade particles using plastic breaker；
2) preimpregnation swelling
Waste plastics is immersed in 1-3h in composite reactive solvent, occurs block-like waste plastics swelling in composite reactive solvent
Body；Wherein, composite reactive solvent is the mixed liquor that organic solvent is mixed with methacrylate-based monomer according to mass ratio 1:1,
Wherein, dissolved with the organic peroxy class initiator and N, N tertiary amine for according to mass ratio being 2:3 mixing in methacrylate-based monomer
Class organic compound.Organic peroxy class initiator and N, N tertiary amines organic compound total amount are methacrylate-based monomer
0.15-0.30%.
Wherein, organic solvent is the mixture of one or both of acetone and dehydrated alcohol.
Methacrylate-based monomer is methyl methacrylate, in ethyl methacrylate, butyl methacrylate
One or more mixtures.
Organic peroxy class initiator is benzoyl peroxide.
The N, N tertiary amines organic compound are n,N-Dimethylaniline, N, N- dihydroxyethyl p-toluidine or N, N- bis-
It is one or more of in hydroxypropyl para-totuidine.
3) the composite reactive solvent removal of free state
The compound of block-like waste plastics swelling body and free state in composite reactive solvent is submerged in using mode of vibration
Active solvent separation；
4) it is pressed and molded
Waste plastics swelling body is placed in tempered glass, is pressed and molded, upper clamper；
5) vacuum solidification
It is placed in 30-40 DEG C, after vacuum degree is solidifying and setting 2-4h in the baking oven of 0.07-0.09Mpa, cope plate is changed to
Frame-shaped tempered glass is placed in 60-80 DEG C after upper clamper again, and vacuum degree is solidifying and setting 3- in the baking oven of 0.07-0.09Mpa
6h；
6) it cooling and demolding: is cooled to room temperature and demoulds to obtain waste plastics plate；
7) surface coating: one layer of PMMA slurry is covered in waste plastics plate surface, is covered with the useless modeling of PMMA film to obtain the final product after cured
Flitch.Surface coating is to scratch PMMA slurry in waste plastics plate surface, is placed in containing in chilled glass die, cold pressing is fixed
Type, 25-35 DEG C solidifies 2-4h, 100-120 DEG C of processing 1-2h, cooling and demolding and obtains to surface the waste plastics plate for covering PMMA film.
PMMA slurry is that the methyl methacrylate that gross mass is N and PMMA are molded in powder mixture and 0.08%- are added
The oxidized polyethylene wax of the trimethylamine class compound of 0.16%N, the benzoyl peroxide of 0.12%-0.24%N, 2%-4%N
The reflective pigment of powder, the magnesium hydroxide of 40%-60%N and 2%-5%N；It is agitated to form the high mucilage material of high dispersive, then is placed in
40-50 DEG C of pre-polymerization 10-20min, what cooling obtained；
Wherein, methyl methacrylate and PMMA Moulding powder are mixed according to mass ratio for the ratio of 1:(0.1-0.4).It is organic
Tertiary amine compounds are n,N-Dimethylaniline, N, one kind in N- dihydroxyethyl p-toluidine or N, N- dihydroxypropyl para-totuidine
Or it is several；Reflective pigment is titanium dioxide and self-control infrared external reflection inorganic pigment (ZL201510890065.2), self-control infrared external reflection
One of inorganic pigment (ZL201310256735.6), self-control infrared external reflection inorganic pigment (ZL201010604669.3) are several
The mixture of kind.
Specific embodiment is given below to further illustrate the present invention.
Embodiment 1
1) waste plastics the fragmentation processing of waste plastics: is broken by a millimeter grade particles using plastic breaker；
2) waste plastics is immersed in 2h in composite reactive solvent, occurs block-like waste plastics swelling in composite reactive solvent
Body；Wherein, it is that 1:1 mixes acetone with methyl methacrylate that composite reactive solvent, which is according to mass ratio, wherein methyl-prop
Dissolved with the benzoyl peroxide and n,N-Dimethylaniline for according to mass ratio being 2:3 mixing in olefin(e) acid ester methyl ester.Benzoyl peroxide
Formyl and n,N-Dimethylaniline total amount are the 0.25% of methyl methacrylate；
3) answering for block-like waste plastics swelling body and free state in composite reactive solvent is submerged in using mode of vibration
Close active solvent separation；
4) waste plastics swelling body is placed in tempered glass, is pressed and molded, upper clamper；
5) 30 DEG C are placed in, after vacuum degree is solidifying and setting 3h in the baking oven of 0.08Mpa, cope plate is changed to frame-shaped tempering
Glass is placed in 50 DEG C after upper clamper again, and vacuum degree is solidifying and setting 4h in the baking oven of 0.08Mpa；
6) it is cooled to room temperature and demoulds to obtain waste plastics plate；
7) one layer of PMMA slurry is covered in waste plastics plate surface, is covered with the waste plastics plate of PMMA film to obtain the final product after cured.Surface
Overlay film is to scratch PMMA slurry in waste plastics plate surface, is placed in containing in chilled glass die, cold pressing sizing, 30 DEG C solidify
2-4h, 110 DEG C of processing 1h, cooling and demolding obtain to surface the waste plastics plate for covering PMMA film.
PMMA slurry are as follows: methyl methacrylate and PMMA Moulding powder are mixed according to the ratio that mass ratio is 1:0.4, total matter
Amount is N, and n,N-Dimethylaniline, the 0.20%N of 0.10%N are added into methyl methacrylate and PMMA molding powder mixture
Benzoyl peroxide, 3%N oxidic polyethylene wax powder, the magnesium hydroxide of 50%N and the reflective pigment of 4%N；Agitated shape
At the high mucilage material of high dispersive, then 40 DEG C of pre-polymerization 20min are placed in, what cooling obtained.
Wherein, reflective pigment is using titanium dioxide and the mixing for making infrared external reflection inorganic pigment (ZL201510890065.2) by oneself
Object.
Embodiment 2
1) waste plastics the fragmentation processing of waste plastics: is broken by a millimeter grade particles using plastic breaker；
2) waste plastics is immersed in 1h in composite reactive solvent, occurs block-like waste plastics swelling in composite reactive solvent
Body；Wherein, it is that 1:1 mixes acetone and dehydrated alcohol mixed liquor with ethyl methacrylate that composite reactive solvent, which is according to mass ratio,
It closes, wherein dissolved with the benzoyl peroxide and N for according to mass ratio being 2:3 mixing, N- dihydroxy ethyl in ethyl methacrylate
Para-totuidine.Benzoyl peroxide and N, N- dihydroxyethyl p-toluidine total amount are the 0.15% of methacrylate ethyl ester；
3) answering for block-like waste plastics swelling body and free state in composite reactive solvent is submerged in using mode of vibration
Close active solvent separation；
4) waste plastics swelling body is placed in tempered glass, is pressed and molded, upper clamper；
5) 40 DEG C are placed in, after vacuum degree is solidifying and setting 2h in the baking oven of 0.09Mpa, cope plate is changed to frame-shaped tempering
Glass is placed in 60 DEG C after upper clamper again, and vacuum degree is solidifying and setting 3h in the baking oven of 0.09Mpa；
6) it is cooled to room temperature and demoulds to obtain waste plastics plate；
7) one layer of PMMA slurry is covered in waste plastics plate surface, is covered with the waste plastics plate of PMMA film to obtain the final product after cured.Surface
Overlay film is to scratch PMMA slurry in waste plastics plate surface, is placed in containing in chilled glass die, cold pressing sizing, 25 DEG C solidify
2h, 120 DEG C of processing 1h, cooling and demolding obtain to surface the waste plastics plate for covering PMMA film.
PMMA slurry is that methyl methacrylate and PMMA Moulding powder are mixed according to the ratio that mass ratio is 1:0.1, total matter
Amount is N, the N of addition 0.08%N into methyl methacrylate and PMMA molding powder mixture, N- dihydroxyethyl p-toluidine,
The benzoyl peroxide of 0.24%N, the oxidic polyethylene wax powder of 2%N, the magnesium hydroxide of 60%N and the reflective pigment of 2%N；Through
Stirring forms the high mucilage material of high dispersive, then is placed in 50 DEG C of pre-polymerization 10min, what cooling obtained；
Wherein, reflective pigment is titanium dioxide and self-control infrared external reflection inorganic pigment (ZL201310256735.6), mixing
Object.
Embodiment 3
1) waste plastics the fragmentation processing of waste plastics: is broken by a millimeter grade particles using plastic breaker；
2) waste plastics is immersed in 3h in composite reactive solvent, occurs block-like waste plastics swelling in composite reactive solvent
Body；Wherein, it is 1:1 by dehydrated alcohol and ethyl methacrylate and methacrylic acid fourth that composite reactive solvent, which is according to mass ratio,
Ester mixes, dissolved with the benzoyl peroxide first for according to mass ratio being 2:3 mixing in ethyl methacrylate and butyl methacrylate
Acyl and N- dihydroxypropyl para-totuidine and n,N-Dimethylaniline mixture.
Benzoyl peroxide and N- dihydroxypropyl para-totuidine and n,N-Dimethylaniline amount of the mixture are metering system
The 0.30% of acetoacetic ester and butyl methacrylate；
3) answering for block-like waste plastics swelling body and free state in composite reactive solvent is submerged in using mode of vibration
Close active solvent separation；
4) waste plastics swelling body is placed in tempered glass, is pressed and molded, upper clamper；
5) 30 DEG C are placed in, after vacuum degree is solidifying and setting 4h in the baking oven of 0.07Mpa, cope plate is changed to frame-shaped tempering
Glass is placed in 80 DEG C after upper clamper again, and vacuum degree is solidifying and setting 6h in the baking oven of 0.07Mpa；
6) it is cooled to room temperature and demoulds to obtain waste plastics plate；
7) one layer of PMMA slurry is covered in waste plastics plate surface, is covered with the waste plastics plate of PMMA film to obtain the final product after cured.Surface
Overlay film is to scratch PMMA slurry in waste plastics plate surface, is placed in containing in chilled glass die, cold pressing sizing, 35 DEG C solidify
4h, 100 DEG C of processing 2h, cooling and demolding obtain to surface the waste plastics plate for covering PMMA film.
PMMA slurry is that methyl methacrylate and PMMA Moulding powder are mixed according to the ratio that mass ratio is 1:0.2, total matter
Amount is N, the N of addition 0.16%N into methyl methacrylate and PMMA molding powder mixture, N- dihydroxyethyl p-toluidine,
The benzoyl peroxide of 0.12%N, the oxidic polyethylene wax powder of 4%N, the magnesium hydroxide of 40%N and the reflective pigment of 5%N；Through
Stirring forms the high mucilage material of high dispersive, then is placed in 40 DEG C of pre-polymerization 20min, what cooling obtained；
Wherein, reflective pigment is that titanium dioxide and infrared external reflection inorganic pigment (ZL201010604669.3) and self-control are infrared anti-
Penetrate the mixture of inorganic pigment (ZL201310256735.6).
The present invention using swelling compression molding waste plastics plate, reduces the usage amount of organic solvent, then carries out surface first
After overlay film, shore hardness is greater than 88HD, and 50cm is impacted without cracking, and wearability (g/100r) is less than 0.11, and adhesive force is 0 grade, light
Damp degree is greater than 90 °, and contact angle is greater than 80 °, can any sanding and polishing, can match in excellence or beauty with popular acrylic panel currently on the market, it is attached
Value added height.
The present invention is not limited to the above embodiments, on the basis of technical solution disclosed by the invention, the skill of this field
For art personnel according to disclosed technology contents, one can be made to some of which technical characteristic by not needing creative labor
A little replacements and deformation, these replacements and deformation are within the scope of the invention.
Claims (10)
1. a kind of waste plastics recovery method, which is characterized in that include the following steps:
1) the fragmentation processing of waste plastics
Waste plastics is broken by a millimeter grade particles using plastic breaker；
2) preimpregnation swelling
Waste plastics is immersed in 1-3h in composite reactive solvent, occurs block-like waste plastics swelling body in composite reactive solvent；
3) the composite reactive solvent removal of free state
The composite reactive of block-like waste plastics swelling body and free state in composite reactive solvent is submerged in using mode of vibration
Solvent separation；
4) it is pressed and molded
Waste plastics swelling body is placed in tempered glass, is pressed and molded, upper clamper；
5) vacuum solidification
It is placed in 30-40 DEG C, after vacuum degree is solidifying and setting 2-4h in the baking oven of 0.07-0.09Mpa, cope plate is changed to frame-shaped
Tempered glass is placed in 60-80 DEG C after upper clamper again, and vacuum degree is solidifying and setting 3-6h in the baking oven of 0.07-0.09Mpa；
6) it cooling and demolding: is cooled to room temperature and demoulds to obtain waste plastics plate；
7) surface coating: one layer of PMMA slurry is covered in waste plastics plate surface, is covered with the waste plastics plate of PMMA film to obtain the final product after cured.
2. a kind of waste plastics recovery method according to claim 1, which is characterized in that the composite reactive solvent is organic molten
The mixed liquor that agent is mixed with methacrylate-based monomer according to mass ratio 1:1, wherein dissolved in methacrylate-based monomer
There are the organic peroxy class initiator and N, N tertiary amines organic compound according to mass ratio for 2:3 mixing.
3. a kind of waste plastics recovery method according to claim 2, which is characterized in that the organic peroxy class initiator and N,
N tertiary amines organic compound total amount is the 0.15-0.30% of methacrylate-based monomer.
4. a kind of waste plastics recovery method according to claim 2, which is characterized in that the organic solvent is acetone and anhydrous
The mixture of one or both of ethyl alcohol.
5. a kind of waste plastics recovery method according to claim 2, which is characterized in that the methacrylate-based monomer is
One of methyl methacrylate, ethyl methacrylate, butyl methacrylate or a variety of mixtures.
6. a kind of waste plastics recovery method according to claim 2, which is characterized in that the organic peroxy class initiator was
Benzoyl Oxide.
7. a kind of waste plastics recovery method according to claim 2, which is characterized in that the N, N tertiary amines organic compound
It is one or more of in N- dihydroxyethyl p-toluidine or N, N- dihydroxypropyl para-totuidine for n,N-Dimethylaniline, N.
8. a kind of waste plastics recovery method according to claim 1, which is characterized in that surface coating is to scratch PMMA slurry
It in waste plastics plate surface, is placed in containing in chilled glass die, cold pressing is formed, at 25-35 DEG C 2-4h, 100-120 DEG C of solidification
Reason 1-2h, cooling and demolding obtain to surface the waste plastics plate for covering PMMA film.
9. a kind of waste plastics recovery method according to claim 1, which is characterized in that PMMA slurry are as follows: gross mass is the first of N
Trimethylamine class compound, the 0.12%- of 0.08%-0.16%N are added in base methyl acrylate and PMMA molding powder mixture
The benzoyl peroxide of 0.24%N, the oxidic polyethylene wax powder of 2%-4%N, 40%-60%N magnesium hydroxide and 2%-5%N
Reflective pigment；It is agitated to form the high mucilage material of high dispersive, then is placed in 40-50 DEG C of pre-polymerization 10-20min, what cooling obtained；
Wherein, methyl methacrylate and PMMA Moulding powder are mixed according to mass ratio for the ratio of 1:(0.1-0.4).
10. a kind of waste plastics recovery method according to claim 9, which is characterized in that the trimethylamine class compound is
It is one or more of in n,N-Dimethylaniline, N, N- dihydroxyethyl p-toluidine or N, N- dihydroxypropyl para-totuidine；
The reflective pigment is titanium dioxide and infrared external reflection inorganic pigment, infrared external reflection inorganic pigment, infrared external reflection inorganic pigment
One or more of mixture.
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| CN1576054A (en) * | 2003-07-29 | 2005-02-09 | Lg化学株式会社 | Artificial marble reutilizing waste materials and preparation thereof |
| JP2010208085A (en) * | 2009-03-09 | 2010-09-24 | Sharp Corp | Method of recycling plastic waste material, plastic raw material, plastic member, and manufacturing methods therefor |
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| US20160107337A1 (en) * | 2014-10-21 | 2016-04-21 | Enye Tech S.A. | Method for producing a supply obtained from the recycling of plastic material of industrial and post-consumer residues, to be used by 3d printers |
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Effective date of registration: 20231220 Address after: No. 6 Kuantou Road, Liaobu Town, Dongguan City, Guangdong Province, 523000 Patentee after: Dongguan Kangnuo Packaging Materials Co.,Ltd. Address before: 230000 floor 1, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee before: Dragon totem Technology (Hefei) Co.,Ltd. Effective date of registration: 20231220 Address after: 230000 floor 1, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee after: Dragon totem Technology (Hefei) Co.,Ltd. Address before: 710046 Dongguan Xiaoguanzi, Hantai District, Hanzhong City, Shaanxi Province Patentee before: Shaanxi University of Technology |