CN116694098A - Glass plastic tray and preparation method thereof - Google Patents
Glass plastic tray and preparation method thereof Download PDFInfo
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- CN116694098A CN116694098A CN202310958423.3A CN202310958423A CN116694098A CN 116694098 A CN116694098 A CN 116694098A CN 202310958423 A CN202310958423 A CN 202310958423A CN 116694098 A CN116694098 A CN 116694098A
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- wind power
- power blade
- blade powder
- waste wind
- coupling agent
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- 229920003023 plastic Polymers 0.000 title claims abstract description 60
- 239000004033 plastic Substances 0.000 title claims abstract description 60
- 239000011521 glass Substances 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 117
- 239000002699 waste material Substances 0.000 claims abstract description 114
- 239000007822 coupling agent Substances 0.000 claims abstract description 52
- 239000000314 lubricant Substances 0.000 claims abstract description 49
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 47
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 42
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 33
- -1 polypropylene Polymers 0.000 claims abstract description 33
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 30
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 30
- 239000004743 Polypropylene Substances 0.000 claims abstract description 29
- 229920001155 polypropylene Polymers 0.000 claims abstract description 29
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims description 64
- 238000000034 method Methods 0.000 claims description 23
- 238000003825 pressing Methods 0.000 claims description 19
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical group [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 15
- 238000001125 extrusion Methods 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 229920001911 maleic anhydride grafted polypropylene Polymers 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 14
- 239000004593 Epoxy Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 11
- 239000002904 solvent Substances 0.000 claims description 9
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 8
- 229920000570 polyether Polymers 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- 239000000194 fatty acid Substances 0.000 claims description 7
- 229930195729 fatty acid Natural products 0.000 claims description 7
- 150000004665 fatty acids Chemical class 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 7
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 6
- 239000000155 melt Substances 0.000 claims description 6
- JKBYAWVSVVSRIX-UHFFFAOYSA-N octadecyl 2-(1-octadecoxy-1-oxopropan-2-yl)sulfanylpropanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)C(C)SC(C)C(=O)OCCCCCCCCCCCCCCCCCC JKBYAWVSVVSRIX-UHFFFAOYSA-N 0.000 claims description 6
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 5
- 238000004321 preservation Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000009270 solid waste treatment Methods 0.000 abstract description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 39
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 description 16
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical group CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 9
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Substances [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 9
- 229920000223 polyglycerol Polymers 0.000 description 8
- 239000010902 straw Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 7
- ODJQKYXPKWQWNK-UHFFFAOYSA-N 3,3'-Thiobispropanoic acid Chemical compound OC(=O)CCSCCC(O)=O ODJQKYXPKWQWNK-UHFFFAOYSA-N 0.000 description 6
- 239000002202 Polyethylene glycol Substances 0.000 description 6
- 239000003490 Thiodipropionic acid Substances 0.000 description 6
- 150000002148 esters Chemical class 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 229920001223 polyethylene glycol Polymers 0.000 description 6
- 235000019303 thiodipropionic acid Nutrition 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 238000009966 trimming Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000007873 sieving Methods 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 230000001808 coupling effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000002656 Distearyl thiodipropionate Substances 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- PWWSSIYVTQUJQQ-UHFFFAOYSA-N distearyl thiodipropionate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCCCCCCCC PWWSSIYVTQUJQQ-UHFFFAOYSA-N 0.000 description 1
- 235000019305 distearyl thiodipropionate Nutrition 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 239000012764 mineral filler Substances 0.000 description 1
- 239000002135 nanosheet Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000004064 recycling 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
- C08L101/00—Compositions of unspecified macromolecular compounds
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention relates to the technical fields of plastic products and solid waste treatment, and discloses a glass plastic tray and a preparation method thereof. The raw materials for preparing the glass plastic tray comprise polypropylene, high-density polyethylene, waste wind power blade powder A, waste wind power blade powder B, a treating agent, an antioxidant, a compatilizer, a lubricant and a coupling agent; the weight ratio of the dosages of the waste wind power blade powder A, the polypropylene, the high-density polyethylene, the waste wind power blade powder B, the treating agent, the antioxidant, the compatilizer, the lubricant and the coupling agent is 100:30-55:34-58:20-38:10-200:1-3.5:1.5-5:4.5-9.5:1.5-4.5; the granularity of the waste wind power blade powder A is 2-16 meshes; the granularity of the waste wind power blade powder B is 60-150 meshes. The invention can recycle the waste wind power blades, and the prepared glass plastic tray has excellent mechanical properties and is energy-saving and environment-friendly.
Description
Technical Field
The invention relates to the technical fields of plastic products and solid waste treatment, in particular to a glass plastic tray and a preparation method thereof.
Background
With the development of the logistics industry, the plastic tray becomes one of the indispensable logistics equipment because of the characteristics of no mildew, insect resistance and the like, and simultaneously, the consumption of wood can be reduced by using the plastic tray to replace the wood tray, so that the cutting damage to trees is reduced, and the environment-friendly requirement is met. Therefore, the progress of plastic trays to replace wood trays and other trays is accelerating, and at the same time, higher requirements are being put on the performance of plastic trays.
Patent application CN105419369B discloses a straw reinforced regenerated plastic composite material and a preparation method thereof, wherein the straw reinforced regenerated plastic composite material comprises the following components in percentage by weight: 50-70% of modified straw powder, 20-40% of regenerated plastic particles, 2-5% of compatilizer, 1-5% of lubricant, 1-3% of colorant, 1-3% of antioxidant and 1-3% of light stabilizer; the modified straw powder consists of the following components in parts by weight: 100-110 parts of pretreated straw powder, 0.1-1 part of graphene nano-sheets, 1-4 parts of cationic surfactant, 2-10 parts of mineral filler and 4-10 parts of coupling agent. However, the compatibility of the plant fiber material and the plastic is poor, the composite material obtained when the content of the plant fiber is large has poor performance, and the compatibility between the straw and the polymer matrix can be improved through the coupling agent, but the compatibility between the straw, the polymer matrix and the coupling agent is not high, so the improvement of the compatibility between the straw and the polymer matrix by the coupling agent is limited, and the improvement is still needed.
Meanwhile, with the rapid development of new energy, the consumption of wind power devices in China is rapidly increased, and the problem of retirement of large-scale wind power devices is caused. Traditional treatment modes of the waste wind power blade comprise burial and combustion, but the treatment modes do not fully utilize the mechanical property and the residual value of the waste wind power blade, and meanwhile, a large amount of land resources are required to be occupied, and serious pollution is caused to underground water and air. The retired wind power blade contains a large amount of glass fibers, and is in the face of a large amount of retired wind power blades in the future, how to fully utilize materials in the waste wind power blade and manufacture a plastic tray to be combined, so that the problem of disposal of the waste wind power blade is solved while the performance of the tray is improved, the improvement and protection of ecological environment are facilitated, and the method has important significance.
Disclosure of Invention
The invention aims to solve the problems of poor performance, difficult disposal of waste wind power blades, serious environmental pollution and the like of a plastic tray in the prior art, and provides a glass plastic tray and a preparation method thereof.
In order to achieve the above purpose, the invention provides a glass plastic tray, wherein the raw materials for preparing the glass plastic tray comprise polypropylene, high-density polyethylene, waste wind power blade powder A, waste wind power blade powder B, a treating agent, an antioxidant, a compatilizer, a lubricant and a coupling agent;
wherein the weight ratio of the dosages of the waste wind power blade powder A to the polypropylene to the high density polyethylene to the waste wind power blade powder B to the treating agent to the antioxidant to the compatilizer to the lubricant to the coupling agent is 100:30-55:34-58:20-38:10-200:1-3.5:1.5-5:4.5-9.5:1.5-4.5;
the granularity of the waste wind power blade powder A is 2-16 meshes;
the granularity of the waste wind power blade powder B is 60-150 meshes.
Preferably, the granularity of the waste wind power blade powder A is 2-10 meshes;
the granularity of the waste wind power blade powder B is 80-100 meshes.
Preferably, the treating agent is a mixture of an alkaline substance and a polyether solvent; and/or
The weight ratio of the alkaline substance to the polyether solvent is 1:10-40.
Preferably, the antioxidants are 2246 antioxidants and dioctadecyl thiodipropionate; and/or
The compatilizer is epoxy compatilizer SAG-001 and maleic anhydride grafted polypropylene; and/or
The lubricant is modified ethylene bis fatty acid amide and an organosilicon lubricant; and/or
The coupling agent is titanate coupling agent and silane coupling agent.
Preferably, 2246 antioxidant and dioctadecyl thiodipropionate are used in a weight ratio of 3-4:1; and/or
The weight ratio of the epoxy compatilizer SAG-001 to the maleic anhydride grafted polypropylene is 2-3:1; and/or
The weight ratio of the dosage of the modified ethylene bis fatty acid amide to the dosage of the organosilicon lubricant is 1:0.5-0.7; and/or
The weight ratio of the titanate coupling agent to the silane coupling agent is 4:5-6.
The second aspect of the invention provides a method for preparing the glass plastic tray, which comprises the following steps:
(1) Mixing the waste wind power blade powder A with a treating agent for reaction, and then filtering, washing and drying to obtain pretreated waste wind power blade powder A;
(2) Mixing polypropylene, high-density polyethylene, pretreated waste wind power blade powder A, a compatilizer and a coupling agent, and then adding waste wind power blade powder B, an antioxidant and a lubricant for continuous mixing;
(3) And (3) carrying out melt extrusion on the material obtained in the step (2), and then carrying out mould pressing.
Preferably, in step (1), the reaction conditions include: the temperature is 195-205 deg.C, and the time is 5-10min.
Preferably, the mixing in step (2) is performed in a high speed mixer.
Preferably, the process of step (2) comprises: and (3) placing polypropylene, high-density polyethylene, pretreated waste wind power blade powder A, a compatilizer and a coupling agent into a high-speed mixer, mixing until the system temperature is 60-80 ℃, then carrying out heat preservation and mixing for 18-22min, then adding waste wind power blade powder B, an antioxidant and a lubricant, and continuously mixing until the system temperature is 108-112 ℃.
Preferably, in the step (3), the temperature of the melt extrusion is 190-220 ℃; and/or
The molding pressure is 6-8MPa, and the molding time is 100-120s.
Compared with the prior art, the invention has the following advantages:
in the invention, the raw materials for preparing the glass plastic tray contain waste wind power blade powder, so that the cost is low, the problem of disposal of waste wind power blades can be solved, the consumption of the waste wind power blades is increased, and the glass plastic tray is environment-friendly. The pretreatment of the waste wind power blade powder A has good grafting coupling effect with polypropylene and high-density polyethylene, meanwhile, the strength of the tray can be improved, and the waste wind power blade powder B is used as a filler. The glass plastic tray prepared by the method has excellent mechanical property and bending strength of 18-20MPa.
Detailed Description
The following describes specific embodiments of the present invention in detail. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
The endpoints and any values of the ranges disclosed herein are not limited to the precise range or value, and are understood to encompass values approaching those ranges or values. For numerical ranges, one or more new numerical ranges may be found between the endpoints of each range, between the endpoint of each range and the individual point value, and between the individual point value, in combination with each other, and are to be considered as specifically disclosed herein.
The invention provides a glass plastic tray, which is prepared from the raw materials of polypropylene, high-density polyethylene, waste wind power blade powder A, waste wind power blade powder B, a treating agent, an antioxidant, a compatilizer, a lubricant and a coupling agent;
wherein the weight ratio of the dosages of the waste wind power blade powder A to the polypropylene to the high density polyethylene to the waste wind power blade powder B to the treating agent to the antioxidant to the compatilizer to the lubricant to the coupling agent is 100:30-55:34-58:20-38:10-200:1-3.5:1.5-5:4.5-9.5:1.5-4.5;
the granularity of the waste wind power blade powder A is 2-16 meshes;
the granularity of the waste wind power blade powder B is 60-150 meshes.
In particular embodiments, the weight ratio of the amount of spent wind blade powder a to the amount of polypropylene may be 100:30, 100:35, 100:39, 100:40, 100:45, 100:45.7, 100:47, 100:50 or 100:55.
In particular embodiments, the weight ratio of the amount of spent wind blade powder A to the amount of high density ethylene may be 100:34, 100:37, 100:42, 100:46, 100:50, 100:54, 100:57.5, or 100:58.
In particular embodiments, the weight ratio of the amount of the spent wind blade powder a to the spent wind blade powder B may be 100:20, 100:21, 100:22.8, 100:24, 100:28, 100:32, 100:34, 100:36 or 100:38.
In particular embodiments, the weight ratio of the amount of spent wind blade powder a to the amount of treating agent may be 100:10, 100:20, 100:30, 100:40, 100:50, 100:100, 100:150, or 100:200.
In particular embodiments, the weight ratio of the amount of the spent wind blade powder a to the amount of the antioxidant may be 100:1, 100:1.6, 100:1.7, 100:2, 100:2.4, 100:3, or 100:3.5.
In particular embodiments, the weight ratio of the amount of the spent wind blade powder a to the compatibilizing agent may be 100:1.5, 100:2, 100:2.5, 100:2.7, 100:2.8, 100:3, 100:3.1, 100:3.5, 100:4, 100:4.5, or 100:5.
In particular embodiments, the weight ratio of the amount of spent wind blade powder a to lubricant may be 100:4.5, 100:4.8, 100:5, 100:5.5, 100:6, 100:6.3, 100:6.5, 100:6.8, 100:7, 100:7.5, 100:8, 100:8.5, 100:9, or 100:9.5.
In particular embodiments, the weight ratio of the amount of the spent wind blade powder a to the coupling agent may be 100:1.5, 100:2, 100:2.1, 100:2.5, 100:2.7, 100:2.8, 100:3, 100:3.5, 100:4, or 100:4.5.
In the present invention, the waste wind power blade powder a and the waste wind power blade powder B may be obtained by crushing waste wind power blades and then sieving.
For example: the particle size of the waste wind power blade powder A is 2-16 meshes, namely the powder obtained by crushing waste wind power blades, sieving the crushed waste wind power blades through a 2-mesh sieve to obtain a undersize, and sieving the undersize through a 16-mesh sieve to obtain an oversize.
In the invention, the main components of the waste wind power blade powder A and the waste wind power blade powder B are glass fiber and epoxy resin. The use of the waste wind power blade powder A is beneficial to enhancing the strength of the tray, and the waste wind power blade powder B is used as a filler.
In the present invention, the high-density polyethylene is a conventional high-density polyethylene in the art.
In order to further improve the performance of the tray, in a preferred embodiment, the particle size of the waste wind blade powder A is 2-10 meshes, and the particle size of the waste wind blade powder B is 80-100 meshes.
In a preferred embodiment, the treating agent is a mixture of a basic substance and a polyether solvent.
Further preferably, the weight ratio of the alkaline substance to the polyether solvent is 1:10-40; specifically, the weight ratio of the alkaline substance to the polyether solvent may be 1:10, 1:12, 1:14, 1:20, 1:30 or 1:40.
In a preferred embodiment, the alkaline substance is sodium hydroxide and/or sodium methoxide, and the polyether solvent is polyethylene glycol or polyglycerol.
According to some embodiments of the invention, the treating agent is a mixture of sodium hydroxide and polyethylene glycol.
In a specific embodiment, the treating agent is a mixture of sodium hydroxide and polyethylene glycol, and the weight ratio of the sodium hydroxide to the polyethylene glycol is 1:10.
According to other embodiments of the present invention, the treating agent is a mixture of sodium methoxide, sodium hydroxide and polyglycerol, wherein the weight ratio of the amounts of sodium methoxide, sodium hydroxide and polyglycerol is 1:4-6:50-70; specifically, the weight ratio of sodium methoxide, sodium hydroxide and polyglycerol may be 1:4:50, 1:4:60, 1:4:70, 1:5:60 or 1:6:70.
According to the invention, the waste wind power blade powder A is treated by the treating agent, so that the roughness of the waste wind power blade powder A is increased, and glass fibers contained in the waste wind power blade powder A are not damaged, so that the grafting coupling effect of the waste wind power blade powder A, polypropylene and high-density polyethylene is improved, and the mechanical property of the tray is improved.
In a preferred embodiment, the antioxidants are 2246 antioxidants and distearyl thiodipropionate.
In order to further improve the performance of the tray, the weight ratio of 2246 antioxidant to the dosage of dioctadecyl thiodipropionate is 3-4:1; specifically, the weight ratio of 2246 antioxidant to dioctadecyl thiodipropionate may be 3:1, 3.5:1 or 4:1.
In a preferred embodiment, the compatibilizers are epoxy compatibilizers SAG-001 and maleic anhydride grafted polypropylene (MAPP).
In order to further improve the mechanical property of the tray, the weight ratio of the epoxy compatilizer SAG-001 to the dosage of the maleic anhydride grafted polypropylene is 2-3:1; specifically, the epoxy type compatibilizer SAG-001 and maleic anhydride grafted polypropylene may be used in a weight ratio of 2:1, 2.5:1, or 3:1.
In a preferred embodiment, the lubricants are modified ethylenebis fatty acid amides (TAF) and silicone lubricants; specifically, the organosilicon lubricant is organosilicon lubricant E525.
In order to further improve the performance of the tray, the weight ratio of the dosage of the modified ethylene bis fatty acid amide to the dosage of the organosilicon lubricant E525 is 1:0.5-0.7; specifically, the weight ratio of the amounts of the modified ethylenebis fatty acid amide and the silicone lubricant E525 may be 1:0.5, 1:0.6, or 1:0.7.
In a preferred embodiment, the coupling agent is a titanate coupling agent and a silane coupling agent; specifically, the titanate coupling agent is KR212 titanate coupling agent, and the silane coupling agent is gamma-aminopropyl trimethoxy silane.
In order to further improve the performance of the tray, the weight ratio of the KR212 titanate coupling agent to the dosage of the gamma-aminopropyl trimethoxysilane is 4:5-6; specifically, the weight ratio of KR212 titanate coupling agent to the amount of gamma-aminopropyl trimethoxysilane may be 4:5, 4:5.5 or 4:6.
In the invention, the raw materials such as polypropylene, high-density polyethylene, waste wind power blade powder A and waste wind power blade powder B are mutually cooperated with additives such as antioxidant, compatilizer, lubricant and coupling agent to jointly act, so that the mechanical property of the tray is improved, and the overall performance of the tray is greatly improved.
The second aspect of the invention provides a method for preparing the glass plastic tray, which comprises the following steps:
(1) Mixing the waste wind power blade powder A with a treating agent for reaction, and then filtering, washing and drying to obtain pretreated waste wind power blade powder A;
(2) Mixing polypropylene, high-density polyethylene, pretreated waste wind power blade powder A, a compatilizer and a coupling agent, and then adding waste wind power blade powder B, an antioxidant and a lubricant for continuous mixing;
(3) And (3) carrying out melt extrusion on the material obtained in the step (2), and then carrying out mould pressing.
In a preferred embodiment, in step (1), the reaction is carried out in a reaction vessel, and the reaction conditions include: the temperature is 195-205 ℃ and the time is 5-10min; specifically, the temperature may be 195 ℃, 200 ℃ or 205 ℃; the time may be 5min or 10min.
In a preferred embodiment, in step (1), the filtration and drying are conventional in the art and the solvent used for the washing is water.
In a preferred embodiment, the mixing in step (2) is performed in a high speed mixer.
In the invention, the high-speed mixer is a high-speed mixer commonly used in the plastic industry, and is particularly suitable for carrying out high-efficiency uniform mixing on solid-liquid, solid-powder, powder-powder and powder-liquid.
In a preferred embodiment, the process of step (2) comprises:
(21) Placing polypropylene, high-density polyethylene, pretreated waste wind power blade powder A, compatilizer and coupling agent into a high-speed mixer to be mixed at high speed until the system temperature is 60-80 ℃, and then preserving heat and mixing at low speed for 18-22min;
(22) Adding the waste wind power blade powder B, the antioxidant and the lubricant, and continuously mixing at a high speed until the system temperature is 108-112 ℃.
In particular embodiments, in step (21), the system temperature may be 60 ℃, 65 ℃, 70 ℃, 75 ℃, or 80 ℃; the low speed mixing time is 18min, 20min or 22min.
In particular embodiments, in step (22), the system temperature may be 108 ℃, 110 ℃, or 112 ℃.
In a preferred embodiment, in step (21), the frequency of the high speed mixing is 45-50Hz and the frequency of the low speed mixing is 20-30Hz; in the step (22), the frequency of high-speed mixing is 45-50Hz; specifically, in the step (21), the frequency of high-speed mixing may be 45Hz, 48Hz or 50Hz, and the frequency of low-speed mixing may be 20Hz, 22Hz, 25Hz, 28Hz or 30Hz; in step (22), the frequency of the high speed mixing may be 45Hz, 48Hz or 50Hz.
In a specific embodiment, the specific process of step (2) comprises:
(21) Placing polypropylene, high-density polyethylene, pretreated waste wind power blade powder A, a compatilizer and a coupling agent into a high-speed mixer, mixing at high speed until the system temperature is 70 ℃, the frequency of high-speed mixing is 50Hz, and then preserving heat, mixing at low speed for 20min, wherein the frequency of low-speed mixing is 20Hz;
(22) Adding the waste wind power blade powder B, the antioxidant and the lubricant, and continuously mixing at a high speed until the system temperature is 110 ℃, wherein the frequency of high-speed mixing is 50Hz.
In a preferred embodiment, in the step (3), a parallel double-screw extruder is adopted for melt extrusion, the process of melt extrusion is carried out in two temperature areas, the temperature of a machine barrel temperature area is 190-215 ℃, and the temperature of a machine head temperature area is 200-220 ℃; specifically, the barrel temperature zone may be 190 ℃, 195 ℃, 198 ℃, 200 ℃, 205 ℃, 210 ℃ or 215 ℃; the temperature of the handpiece temperature zone may be 200 ℃, 205 ℃, 210 ℃, 215 ℃, or 220 ℃.
In a preferred embodiment, the molding pressure is 6-8MPa and the molding time is 100-120s; specifically, the pressure of the molding may be 6MPa, 6.5MPa, 7MPa, 7.5MPa or 8MPa; the molding time may be 100s, 105s, 110s, 115s or 120s.
In the present invention, step (3) further comprises demolding, cooling and trimming the molded material.
The invention further provides a glass plastic tray and a preparation method thereof. The embodiment is implemented on the premise of the technical scheme of the invention, and detailed implementation modes and specific operation processes are given, but the protection scope of the invention is not limited to the following embodiment.
The experimental methods in the following examples and comparative examples, unless otherwise specified, are conventional in the art. The experimental materials used in the following examples and comparative examples are commercially available unless otherwise specified.
Example 1
The raw materials for preparing the glass plastic tray S1 comprise: 13 parts by weight of polypropylene, 19 parts by weight of high-density polyethylene, 33 parts by weight of waste wind power blade powder A, 12 parts by weight of waste wind power blade powder B, 3.3 parts by weight of treating agent, 0.8 part by weight of antioxidant, 0.9 part by weight of compatilizer, 1.6 parts by weight of lubricant and 0.9 part by weight of coupling agent, namely the weight ratio of the amounts of waste wind power blade powder A, polypropylene, high-density polyethylene, waste wind power blade powder B, treating agent, antioxidant, compatilizer, lubricant and coupling agent is 100:39:57.5:36:10:2.4:2.7:4.8:2.7;
the granularity of the waste wind power blade powder A is 2-10 meshes;
the granularity of the waste wind power blade powder B is 80-100 meshes;
the treating agent is a mixture of sodium hydroxide and polyethylene glycol, and the weight ratio of the dosage of the sodium hydroxide to the dosage of the polyethylene glycol is 1:10;
the antioxidant is 2246 antioxidant and thiodipropionic acid dioctadecyl ester, and the weight ratio of the dosage of 2246 antioxidant to thiodipropionic acid dioctadecyl ester is 3:1;
the compatilizer is epoxy compatilizer SAG-001 and MAPP, and the weight ratio of the dosage of the epoxy compatilizer SAG-001 to the dosage of the MAPP is 2:1;
the lubricants are TAF and organosilicon lubricant E525, and the weight ratio of the dosage of the TAF to the organosilicon lubricant E525 is 1:0.6;
the coupling agent is KR212 titanate coupling agent and gamma-aminopropyl trimethoxy silane, and the weight ratio of the KR212 titanate coupling agent to the gamma-aminopropyl trimethoxy silane is 4:5.
The method for preparing the glass plastic tray S1 comprises the following steps:
(1) Mixing the waste wind power blade powder A with a treating agent, adding the mixture into a reaction kettle for reaction at the temperature of 195 ℃ for 5min, and then filtering, washing and drying to obtain pretreated waste wind power blade powder A;
(21) Placing polypropylene, high-density polyethylene, pretreated waste wind power blade powder A, a compatilizer and a coupling agent into a high-speed mixer, mixing at a high speed until the temperature of the system is 65 ℃, the frequency of high-speed mixing is 45Hz, and then mixing at a low speed for 18min under heat preservation, wherein the frequency of low-speed mixing is 20Hz;
(22) Then adding the waste wind power blade powder B, an antioxidant and a lubricant, and continuously carrying out high-speed mixing in a high-speed mixer, wherein the frequency of the high-speed mixing is 45Hz, and the mixing is carried out until the temperature of a system is 108 ℃;
(3) Carrying out melt extrusion on the material obtained in the step (22) by using a parallel double-screw extruder, wherein the melt extrusion process is carried out in two temperature areas, the set temperature of a machine barrel temperature area is 198 ℃, and the set temperature of a machine head temperature area is 205 ℃; and then carrying out mould pressing in a mould pressing machine, wherein the mould pressing pressure is 6.5MPa, the mould pressing time is 100S, and then demoulding, cooling and trimming to obtain the glass plastic tray S1.
Example 2
The raw materials for preparing the glass plastic tray S2 comprise: 18 parts by weight of polypropylene, 13 parts by weight of high-density polyethylene, 38 parts by weight of waste wind power blade powder A, 8 parts by weight of waste wind power blade powder B, 7.6 parts by weight of treating agent, 0.6 part by weight of antioxidant, 1.2 parts by weight of compatilizer, 2.4 parts by weight of lubricant and 0.81 parts by weight of coupling agent, namely the weight ratio of the dosages of waste wind power blade powder A, polypropylene, high-density polyethylene, waste wind power blade powder B, treating agent, antioxidant, compatilizer, lubricant and coupling agent is 100:47:34:21:20:1.6:3.1:6.3:2.1;
the granularity of the waste wind power blade powder A is 2-10 meshes;
the granularity of the waste wind power blade powder B is 80-100 meshes;
the treating agent is a mixture of sodium methoxide, sodium hydroxide and polyglycerol, and the weight ratio of the dosage of the sodium methoxide to the dosage of the sodium hydroxide to the dosage of the polyglycerol is 1:5:60;
the antioxidant is 2246 antioxidant and thiodipropionic acid dioctadecyl ester, and the weight ratio of the dosage of 2246 antioxidant to thiodipropionic acid dioctadecyl ester is 3:1;
the compatilizer is epoxy compatilizer SAG-001 and MAPP, and the weight ratio of the dosage of the epoxy compatilizer SAG-001 to the dosage of the MAPP is 2:1;
the lubricants are TAF and organosilicon lubricant E525, and the weight ratio of the dosage of the TAF to the organosilicon lubricant E525 is 1:0.6;
the coupling agent is KR212 titanate coupling agent and gamma-aminopropyl trimethoxy silane, and the weight ratio of the KR212 titanate coupling agent to the gamma-aminopropyl trimethoxy silane is 4:5.
The method for preparing the glass plastic tray S2 comprises the following steps:
(1) Mixing the waste wind power blade powder A with a treating agent, adding the mixture into a reaction kettle for reaction at the temperature of 200 ℃ for 5min, and then filtering, washing and drying to obtain pretreated waste wind power blade powder A;
(21) Placing polypropylene, high-density polyethylene, pretreated waste wind power blade powder A, a compatilizer and a coupling agent into a high-speed mixer, mixing at a high speed until the temperature of the system is 75 ℃, the frequency of high-speed mixing is 48Hz, and then mixing at a low speed for 20min under heat preservation, wherein the frequency of low-speed mixing is 25Hz;
(22) Then adding the waste wind power blade powder B, an antioxidant and a lubricant, and continuously carrying out high-speed mixing in a high-speed mixer, wherein the frequency of the high-speed mixing is 48Hz, and the mixing is carried out until the temperature of the system is 110 ℃;
(3) Carrying out melt extrusion on the material obtained in the step (22) by using a parallel double-screw extruder, wherein the melt extrusion process is carried out in two temperature areas, the set temperature of a machine barrel temperature area is 205 ℃, and the set temperature of a machine head temperature area is 215 ℃; and then carrying out mould pressing in a mould pressing machine, wherein the mould pressing pressure is 7.5MPa, the mould pressing time is 110S, and then demoulding, cooling and trimming to obtain the glass plastic tray S2.
Example 3
The raw materials for preparing the glass plastic tray S3 comprise: 16 parts by weight of polypropylene, 13 parts by weight of high-density polyethylene, 35 parts by weight of waste wind power blade powder A, 8 parts by weight of waste wind power blade powder B, 5.6 parts by weight of treating agent, 0.6 part by weight of antioxidant, 1.0 part by weight of compatilizer, 2.4 parts by weight of lubricant and 1.0 part by weight of coupling agent, namely the weight ratio of the dosages of waste wind power blade powder A, polypropylene, high-density polyethylene, waste wind power blade powder B, treating agent, antioxidant, compatilizer, lubricant and coupling agent is 100:45.7:37:22.8:20:1.7:2.8:6.8:2.8;
the granularity of the waste wind power blade powder A is 2-10 meshes;
the granularity of the waste wind power blade powder B is 80-100 meshes;
the treating agent is a mixture of sodium methoxide, sodium hydroxide and polyglycerol, and the weight ratio of the dosage of the sodium methoxide to the dosage of the sodium hydroxide to the dosage of the polyglycerol is 1:5:60;
the antioxidant is 2246 antioxidant and thiodipropionic acid dioctadecyl ester, and the weight ratio of the dosage of 2246 antioxidant to thiodipropionic acid dioctadecyl ester is 3:1;
the compatilizer is epoxy compatilizer SAG-001 and MAPP, and the weight ratio of the dosage of the epoxy compatilizer SAG-001 to the dosage of the MAPP is 2:1;
the lubricants are TAF and organosilicon lubricant E525, and the weight ratio of the dosage of the TAF to the organosilicon lubricant E525 is 1:0.6;
the coupling agent is KR212 titanate coupling agent and gamma-aminopropyl trimethoxy silane, and the weight ratio of the KR212 titanate coupling agent to the gamma-aminopropyl trimethoxy silane is 4:5.
The method for preparing the glass plastic tray S3 comprises the following steps:
(1) Mixing the waste wind power blade powder A with a treating agent, adding the mixture into a reaction kettle for reaction at 205 ℃ for 10min, and then filtering, washing and drying to obtain pretreated waste wind power blade powder A;
(21) Placing polypropylene, high-density polyethylene, pretreated waste wind power blade powder A, a compatilizer and a coupling agent into a high-speed mixer, mixing at a high speed until the temperature of the system is 80 ℃, the frequency of high-speed mixing is 50Hz, then mixing at a low speed for 22min, and the frequency of low-speed mixing is 30Hz;
(22) Then adding the waste wind power blade powder B, an antioxidant and a lubricant, and continuously carrying out high-speed mixing in a high-speed mixer, wherein the frequency of the high-speed mixing is 50Hz, and the temperature of the system is 112 ℃;
(3) Carrying out melt extrusion on the material obtained in the step (22) by using a parallel double-screw extruder, wherein the melt extrusion process is carried out in two temperature areas, the set temperature of a machine barrel temperature area is 198 ℃, and the set temperature of a machine head temperature area is 205 ℃; and then carrying out mould pressing in a mould pressing machine, wherein the mould pressing pressure is 8MPa, the mould pressing time is 120S, and then demoulding, cooling and trimming to obtain the glass plastic tray S3.
Comparative example 1
Glass plastic tray M1: the glass plastic tray M1 is different from the glass plastic tray S1 in that the preparation raw materials do not contain a treating agent;
a method for preparing a glass plastic tray M1, comprising the steps of:
(11) Placing polypropylene, high-density polyethylene, waste wind power blade powder A, a compatilizer and a coupling agent into a high-speed mixer, mixing at a high speed until the temperature of the system is 65 ℃, the frequency of high-speed mixing is 45Hz, and then mixing at a low speed for 18min under heat preservation, wherein the frequency of low-speed mixing is 20Hz;
(12) Then adding the waste wind power blade powder B, an antioxidant and a lubricant, and continuously carrying out high-speed mixing in a high-speed mixer, wherein the frequency of the high-speed mixing is 45Hz, and the mixing is carried out until the temperature of a system is 108 ℃;
(2) Carrying out melt extrusion on the material obtained in the step (12) by using a parallel double-screw extruder, wherein the melt extrusion process is carried out in two temperature areas, the set temperature of a machine barrel temperature area is 198 ℃, and the set temperature of a machine head temperature area is 205 ℃; and then carrying out mould pressing in a mould pressing machine, wherein the mould pressing pressure is 6.5MPa, the mould pressing time is 100s, and then demoulding, cooling and trimming to obtain the glass plastic tray M1.
Comparative example 2
The raw material composition according to example 1 was carried out, except that in step (21), the waste wind blade powder C having the same weight and particle size of 80 to 100 mesh was used instead of the waste wind blade powder A;
glass plastic tray M2 was prepared as in example 1.
Comparative example 3
The raw material composition according to example 1 was carried out, except that in step (22), the waste wind blade powder D having the same weight and a particle size of 2 to 10 mesh was used instead of the waste wind blade powder B;
glass plastic tray M3 was prepared as in example 1.
Test case
Performance tests were performed on the glass plastic trays prepared in examples 1 to 3 and comparative examples 1 to 3, and the test indexes include flexural strength, impact strength and water absorption;
1. the flexural strength of the glass plastic trays prepared in examples 1 to 3 and comparative examples 1 to 3 was evaluated by using the prescribed test of GB/T9341-2008 "determination of Plastic flexural Property" national standard, and the test results are shown in Table 1;
2. the impact strength of the glass plastic trays prepared in examples 1 to 3 and comparative examples 1 to 3 was evaluated by using the specified detection of GB/T1043.1-2008 "determination of impact Property of Plastic simply-supported Beam" national standard, and the test results are shown in Table 1;
3. the glass plastic trays prepared in examples 1 to 3 and comparative examples 1 to 3 were evaluated for water absorption by a prescribed test in national standard of determination of Plastic Water absorption by GB/T1034-2008, and the test results are shown in Table 1;
TABLE 1
As can be seen from the results in Table 1, the method provided by the invention can be used for recycling waste wind power blades, is energy-saving and environment-friendly, and the prepared glass plastic tray has the advantages of meeting the standard requirements, being excellent in mechanical property, not easy to absorb water and deform and having good application scenes.
The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, a number of simple variants of the technical solution of the invention are possible, including combinations of the individual technical features in any other suitable way, which simple variants and combinations should likewise be regarded as being disclosed by the invention, all falling within the scope of protection of the invention.
Claims (10)
1. The glass plastic tray is characterized in that raw materials for preparing the glass plastic tray comprise polypropylene, high-density polyethylene, waste wind power blade powder A, waste wind power blade powder B, a treating agent, an antioxidant, a compatilizer, a lubricant and a coupling agent;
wherein the weight ratio of the dosages of the waste wind power blade powder A to the polypropylene to the high density polyethylene to the waste wind power blade powder B to the treating agent to the antioxidant to the compatilizer to the lubricant to the coupling agent is 100:30-55:34-58:20-38:10-200:1-3.5:1.5-5:4.5-9.5:1.5-4.5;
the granularity of the waste wind power blade powder A is 2-16 meshes;
the granularity of the waste wind power blade powder B is 60-150 meshes.
2. The glass-plastic tray according to claim 1, wherein the granularity of the waste wind power blade powder material A is 2-10 meshes;
the granularity of the waste wind power blade powder B is 80-100 meshes.
3. The glass-plastic tray according to claim 1, wherein the treating agent is a mixture of an alkaline substance and a polyether solvent; and/or
The weight ratio of the alkaline substance to the polyether solvent is 1:10-40.
4. The glass-plastic tray of claim 1, wherein the antioxidants are 2246 antioxidant and dioctadecyl thiodipropionate; and/or
The compatilizer is epoxy compatilizer SAG-001 and maleic anhydride grafted polypropylene; and/or
The lubricant is modified ethylene bis fatty acid amide and an organosilicon lubricant; and/or
The coupling agent is titanate coupling agent and silane coupling agent.
5. The glass plastic tray according to claim 4, wherein the weight ratio of the amount of 2246 antioxidant to the amount of dioctadecyl thiodipropionate is 3-4:1; and/or
The weight ratio of the epoxy compatilizer SAG-001 to the maleic anhydride grafted polypropylene is 2-3:1; and/or
The weight ratio of the dosage of the modified ethylene bis fatty acid amide to the dosage of the organosilicon lubricant is 1:0.5-0.7; and/or
The weight ratio of the titanate coupling agent to the silane coupling agent is 4:5-6.
6. A method of making a glass-plastic tray according to any one of claims 1-5, comprising the steps of:
(1) Mixing the waste wind power blade powder A with a treating agent for reaction, and then filtering, washing and drying to obtain pretreated waste wind power blade powder A;
(2) Mixing polypropylene, high-density polyethylene, pretreated waste wind power blade powder A, a compatilizer and a coupling agent, and then adding waste wind power blade powder B, an antioxidant and a lubricant for continuous mixing;
(3) And (3) carrying out melt extrusion on the material obtained in the step (2), and then carrying out mould pressing.
7. The method according to claim 6, wherein in the step (1), the reaction conditions include: the temperature is 195-205 deg.C, and the time is 5-10min.
8. The method of claim 6, wherein the mixing in step (2) is performed in a high speed mixer.
9. The method according to claim 6 or 8, wherein the process of step (2) comprises: and (3) placing polypropylene, high-density polyethylene, pretreated waste wind power blade powder A, a compatilizer and a coupling agent into a high-speed mixer, mixing until the system temperature is 60-80 ℃, then carrying out heat preservation and mixing for 18-22min, then adding waste wind power blade powder B, an antioxidant and a lubricant, and continuously mixing until the system temperature is 108-112 ℃.
10. The method according to claim 6, wherein in the step (3), the temperature of the melt extrusion is 190 to 220 ℃; and/or
The molding pressure is 6-8MPa, and the molding time is 100-120s.
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