CN105710994B - The reuse method of waste plastic - Google Patents
The reuse method of waste plastic Download PDFInfo
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- CN105710994B CN105710994B CN201610130640.3A CN201610130640A CN105710994B CN 105710994 B CN105710994 B CN 105710994B CN 201610130640 A CN201610130640 A CN 201610130640A CN 105710994 B CN105710994 B CN 105710994B
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- plastics
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Classifications
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- 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
- B29B17/0026—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting
-
- 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
- B29B17/0404—Disintegrating plastics, e.g. by milling to powder
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The present invention provides a kind of reuse methods of waste plastic.The reuse method comprises the following steps：The mixture of a variety of waste plastics is ground into block plastics；Block plastics are worn into powder plastics；And by powder plastic pressing forming.By the way that existing a variety of discarded plastics are carried out synthetical recovery, obtain the mixture of a variety of waste plastics, then directly the mixture of a variety of waste plastics is crushed, then regrinds into powder, pressed by powder shaping finally can be realized to the re-using to waste plastic.The above-mentioned reuse method of the present invention was both individually recycled without separating the plastic products of each heterogeneity from mixed plastic waste, the comprehensive reutilization to a variety of waste plastics is realized again, but also the application range of recycled plastic product can be expanded according to the difference of purpose is recycled to prepare different plastic products.
Description
Technical field
The present invention relates to plastic products recycling field, in particular to a kind of reuse method of waste plastic.
Background technology
Plastic products are largely used to the packaging of various articles in daily life, fiber with its good light blocking heat preservation property
Thermoplastic sheet is widely used in the fields such as automotive trim, decoration material due to possessing higher intensity.With fiber thermoplastic
Property the increase that uses of composite material, future will generate a large amount of corresponding discarded objects.
In the prior art, the recoverying and utilizing method of plastic products is typically that a variety of plastics are carried out by returned enterprise
It is separately recovered, is then purchased respectively by each different manufacturing enterprises again, be then prepared into different products again.But this recycling profit
With in method, returned enterprise needs to carry out sorting recycling to all kinds of, and cost recovery is high；Returned enterprise needs to find different demands
There is the problem of transaction difficulty is big or even warehousing pressure is big in manufacturing enterprise.Therefore, existing recycling flow greatly increases
The cost of recycling, causes most returned enterprise profit low, is unwilling to be engaged in the recycling of plastic products again, cause currently on the market
The recovery utilization rate of plastic products is low.
Moreover, being counted according to national departments concerned, such discarded plastic packing article is up to several ten million tons every year.And it largely moulds
Expect the processing mode that discarded object uses soil to bury, but this processing mode not only has lost substantial amounts of plastic resource, Er Qie
It can not degrade in soil, pollution is caused to environment.
Therefore, it is a kind of to the inexpensive recovery and treatment method of plastic products progress to be badly in need of offer, reduces discarded plastic products
Pollution to environment, and improve the recovery utilization rate of plastic products.
The content of the invention
It is a primary object of the present invention to provide a kind of reuse method of waste plastic, to solve plastics in the prior art
The problem of recovery utilization rate of product is low.
To achieve these goals, the present invention provides a kind of reuse method of waste plastic, the reuse method bags
Include following steps：The mixture of a variety of waste plastics is ground into block plastics；Block plastics are worn into powder plastics；It and will
Powder plastic pressing forming.
Further, the mixture of a variety of waste plastics includes fiber reinforced thermolplastic composite material.
Further, the mixture of a variety of waste plastics includes the fiber reinforcement heat that mass percentage is 10~60%
Plastic composites.
Further, include by the step of powder plastic pressing forming：By powder Plastic dispersion in multiple fiber reinforcements
Between thermoplastic composite plate unit, stepped construction is formed, each compound plate unit of fiber reinforced thermolplastic includes one layer or is stacked
The fiber reinforced thermolplastic composite plate discarded of multilayer；By stepped construction compression moulding.
Further, the compound plate unit of multiple fiber reinforced thermolplastics is identical.
Further, at least two fiber reinforced thermolplastic composite plate lists in the compound plate unit of multiple fiber reinforced thermolplastics
It is first different.
Further, mass percentage of the fiber reinforced thermolplastic composite plate in stepped construction is 10~60%.
Further, before the step of mixture of a variety of waste plastics is ground into block plastics, reuse method
It further includes：Mixture is cleaned successively, is dried and the step of except metal impurities；It is preferred that it is carried out in the step of cleaning with water
Cleaning；It is preferred that using vacuum drying in dry step, more preferably at 55~65 DEG C, pressure is the item of 0.07~0.091MPa
It is dried in vacuo under part.
Further, block plastics are worn by powder plastics using the method for ball milling, the grain size of preferably powder plastics is less than
10mm。
Further, in the step of stepped construction compression moulding the method for hot pressing will be used to suppress；It is preferred that hot pressing
Temperature is 110~250 DEG C, and pressure is 10~40MPa.
It applies the technical scheme of the present invention, by the way that existing a variety of discarded plastics are carried out synthetical recovery, obtains a variety of
Then the mixture of waste plastic directly crushes the mixture of a variety of waste plastics, then regrind into powder, finally will
The re-using to waste plastic can be realized in pressed by powder shaping.The above-mentioned reuse method of the present invention from mixing both without moulding
The plastic products that each heterogeneity is separated in material discarded object are individually recycled, and are realized to the comprehensive of a variety of waste plastics
It closes and recycles, but also recycled plastic system can be expanded according to the difference of purpose is recycled to prepare different plastic products
The application range of product.
Specific embodiment
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the application can phase
Mutually combination.Below in conjunction with embodiment, the present invention will be described in detail.
As background section is previously mentioned, the waste pollution environment of plastic products and resource wave exists in the prior art
The defects of taking for this situation of the improvement prior art, in a kind of typical embodiment of the present invention, provide a kind of discarded modeling
The reuse method of material, the reuse method comprise the following steps：The mixture of a variety of waste plastics is ground into block plastics；
Block plastics are worn into powder plastics；And by powder plastic pressing forming.
The reuse method of the above-mentioned waste plastic of the present invention, by the way that existing a variety of discarded plastics are integrated back
It receives, obtains the mixture of a variety of waste plastics, then directly the mixture of a variety of waste plastics is crushed, is then regrinded into
The re-using to waste plastic finally can be realized in pressed by powder shaping by powder.The above-mentioned reuse method of the present invention was both
Plastic products without separating each heterogeneity from mixed plastic waste are individually recycled, and are realized to a variety of
The comprehensive reutilization of waste plastic, but also can expand according to the difference of purpose is recycled to prepare different plastic products
The application range of recycled plastic product.
It is typically that a variety of waste plastics mix due to recycling the plastic products returned in existing discarded object, and shows
The thinking of recycling of waste plastic be that same category of plastic product is recycled.Moreover, recycling with
The process of recycling is completed respectively by different enterprises, and as background technology is previously mentioned, returned enterprise is according to different recyclings
Enterprise classifies to the plastic products of recycling to the demand difference of the species for the plastic products to be recycled, then each sharp again
It is recycled respectively from the respective required recycled plastic product of returned enterprise purchase with enterprise.That is, existing waste plastic system
The recycling of product all individually recycles different types of plastic products, for example, only to polyethylene plastic products or
Only polypropylene plastics products are individually recycled.Thus, it usually needs to mix waste plastic during recycling
Different types of plastics in object are classified or are sorted, and the species of prepared plastic products is also relatively single.And
In the above-mentioned reuse method of the present invention, the mixtures of a variety of waste plastics refer to it is existing various discarded non-classified or point
The mixture of a variety of plastics of the recycling picked, specific plastics kind include but are not limited to polyethylene, polyvinyl chloride, polypropylene,
Nylon, organic glass, polymethyl methacrylate, polybutylene terephthalate (PBT), polyethylene terephthalate and
The plastic products such as makrolon.In a kind of preferred embodiment of the present invention, said mixture includes at least fibre-reinforced thermoplastic
Property composite material.
The species of fiber reinforced thermolplastic composite material in the prior art has very much, including short fiber reinforced thermoplastic
Property plastics (SFT), long fiber reinforced thermoplastic composites (LFT), glass-fiber felt reinforced thermal-plastic plastic (GMT) and even
Continuous fiber reinforced thermolplastic composite material (CFRTP).Fiber reinforced thermolplastic composite material is included at least in more preferred embodiment.
Due to seldom to the recycling of this kind of fiber reinforced thermolplastic composite material in the prior art, to reduce to such function admirable
Plastic products waste.Likewise, other kinds of fiber reinforced thermolplastic composite material can individually or and fiber reinforcement
The method that the present invention is used together in thermoplastic composite is recycled.
It, can be according to the purpose of recycling and to the different to certain of hardness requirement in the above-mentioned reuse method of the present invention
The content of one or more of specific plastic products is rationally adjusted.For example can be to prepare plastics according to the purpose of recycling
Bottle or plastics tables and chairs and the content of the plastics of special component in mixed plastic is rationally adjusted.Of the invention a kind of preferred
The fiber reinforcement heat that mass percentage is 10~60% is included at least in embodiment, in the mixture of above-mentioned a variety of waste plastics
Plastic composites.Flexibility and rigidity are had both since fiber reinforced thermolplastic composite material has the advantages that hardness is moderate, it will
Model of the mass percentage control of fiber reinforced thermolplastic composite material 10~60% in the mixture of a variety of waste plastics
In enclosing, convenient for the difference according to recycling purpose, fibre-reinforced thermoplastic in the mixture by rationally adjusting a variety of waste plastics
The number of the mass percentage of property composite material achievees the purpose that prepare different product.
In the above-mentioned reuse method of the present invention, existing compacting is may be employed into the step of powder plastics extrusion forming
Forming step, for example, it is hot-forming.In a kind of preferred embodiment of the present invention, the step of the above-mentioned plastics extrusion forming by powder
Including：By powder Plastic dispersion between the compound plate unit of multiple fiber reinforced thermolplastics, stepped construction is formed, each fiber increases
The fiber reinforced thermolplastic composite plate discarded of multilayer that heat-flash plastic composite plate unit includes one layer or is stacked；By stepped construction pressure
Type is made.
In above-mentioned preferred embodiment, since the hardness of powder plastics is relatively small, and fiber reinforced thermolplastic composite plate
Hardness it is relatively large, by by above-mentioned powder Plastic dispersion in including the compound plate unit of one or more layers fiber reinforced thermolplastic
Between, stepped construction is formed, it is spaced convenient for the different material of utilization hardness level then again by stepped construction compression moulding
It adjusts the hardness of product, the product of compression moulding is made to meet the needs of recycling.
In the above-mentioned reuse method of the present invention, by powder Plastic dispersion in multi-layer fiber enhancing thermoplastic composite plate it
Between formed stepped construction the step of can according to the difference of actually required hardness, reasonably select powder plastics multi-layer fiber enhance
Dispersing mode between thermoplastic composite plate.In a kind of preferred embodiment of the present invention, above-mentioned dispersing mode is to mould powder
Material is dispersed between multiple compound plate units of identical fiber reinforced thermolplastic.The compound plate unit of identical fiber reinforced thermolplastic
It can all be between the unit for including one layer of fiber reinforced thermolplastic composite plate or be all to include two layers of fiber reinforcement heat
Between the unit of plastic composite plate.The dispersing mode is relatively uniform, also relatively uniform to the adjusting of hardness.Of the invention another
In preferred embodiment, above-mentioned dispersing mode is in the different multiple fibres of the compound plate unit of at least two fiber reinforced thermolplastics
Dispersion powder plastics between dimension enhancing thermoplastic composite plate unit, the dispersing mode to the degree of scatter of plastics powder relatively less
Uniformly, but scatter operation is relatively more flexible.
In above-mentioned reuse method, when by the use of fiber reinforced thermolplastic composite plate as basic plate skeleton, and in the bone
When disperseing above-mentioned powder plastics among frame, it can be met by adjusting the mass percentage of fiber reinforced thermolplastic composite plate
Requirement of the conventional plastic products to hardness.In a kind of preferred embodiment of the present invention, above-mentioned fiber reinforced thermolplastic is compound
Mass percentage of the plate in stepped construction is 10~60%, which disclosure satisfy that most plastic products to hardness
It is required that.
In the above-mentioned reuse method of the present invention, the mixture of a variety of waste plastics of recycling is ground into block plastics
It further includes before step and mixture is cleaned successively, is dried and the step of except metal impurities.To a variety of useless of recycling
The mixture for abandoning plastics is cleaned to remove the impurity in waste plastic, reduces the performance influence on subsequent product.Drying is
Influence of the moisture to subsequent step in order to prevent.The step of except metal impurities, is also for mode metal impurities to subsequently suppressing
Forming step causes harmful effect and then influences the performance of the product of compression moulding.
The mode of above-mentioned drying is not limited only to be dried in vacuo, and vacuum drying can realize drying more quickly.Specific vacuum
Dry actual conditions can rationally be set according to actual needs.In another preferred embodiment of the invention, cleaning
The step of in cleaned with water；It is preferred that using vacuum drying in dry step, more preferably at 55~65 DEG C, pressure is
It is dried in vacuo under conditions of 0.07~0.091MPa, drying time, faster drying effect was more preferable.
Particular/special requirement is had no to the grain size of powder plastics in above-mentioned reuse method, as long as disclosure satisfy that the grain of compression moulding
Footpath demand.In a kind of preferred embodiment of the present invention, the grain size of above-mentioned powder plastics is less than 10mm.Grain size is less than 10mm
Convenient for the difference according to demands such as density, hardness, the recycling plastic products of different demands are prepared.
In above-mentioned reuse method, preferably but the side using hot pressing will be not limited only in the step of stepped construction compression moulding
Method is suppressed.Hot-pressing technique is ripe, easy to operate, has a wide range of application.The temperature of more preferable hot pressing is 110~250 DEG C, pressure
For more than 10MPa.Carrying out hot pressing at this temperature and pressure has the advantageous effects such as forming quality stabilization, efficient.
The advantageous effect further illustrated the present invention below in conjunction with specific embodiments.
Embodiment 1
By the waste polyethylene of recycling, polypropylene, nylon, organic glass, polymethyl methacrylate, poly terephthalic acid
The plastic products such as butanediol ester, polyethylene terephthalate, makrolon and glass fibrofelt reinforced thermoplastics are compound
The mixture of plate is sheared to obtain block plastics, is cleaned so as to being sent into rotary drum washer, wherein, fiber increases
The mass percentage of strong plastic composite board material in the mixture is 10%；
Mixture is immersed in the water that temperature is 30 DEG C and is rolled strand repeatedly, to remove grease and dirt；
Mixture after cleaning is sent into vacuum drier and is dried in vacuo, vacuum drying temperature is 55 DEG C, pressure
Power is 0.07MPa；
Mixture after evaporation is inserted and is provided in the conveyer belt of removal irony facility, irony is removed in transmit process
Sundries；
Mixture that vacuum high-temperature is gone after water process is fluffy to be unfavorable for postorder processing, by right at a temperature of 110 DEG C
Mixture after decontamination carries out spheroidising, and twin-screw machine is recycled thoroughly to crush mixture, obtains powder plastics；Its
In, the average grain diameter of powder plastics is 9mm；
Powder plastics after crushing are inserted in single lead screw ex truding briquetting machine, the temperature of extruding is 110 DEG C, pressure 10MPa, one
Processing and forming is into Plastics table.
Embodiment 2
By the waste polyethylene of recycling, polypropylene, nylon, organic glass, polymethyl methacrylate, poly terephthalic acid
The plastic products such as butanediol ester, polyethylene terephthalate, makrolon and discarded continuous fiber reinforced thermoplastic
The mixture of composite board is sheared to obtain block plastics, is cleaned so as to being sent into rotary drum washer, wherein, even
The mass percentage of continuous fiber reinforced thermolplastic composite board in the mixture is 60%；
Mixture is immersed in the water that temperature is 45 DEG C and is rolled strand repeatedly, to remove grease and dirt；
Mixture after cleaning is sent into vacuum drier and is dried in vacuo, vacuum drying temperature is 65 DEG C, pressure
Power is 0.091MPa；
Mixture after evaporation is inserted and is provided in the conveyer belt of removal irony facility, irony is removed in transmit process
Sundries；
Mixture that vacuum high-temperature is gone after water process is fluffy to be unfavorable for postorder processing, by right at a temperature of 250 DEG C
Mixture after decontamination carries out spheroidising, and twin-screw machine is recycled thoroughly to crush mixture, obtains powder plastics；Its
In, the average grain diameter of powder plastics is 6mm；
Powder plastics after crushing are inserted in single lead screw ex truding briquetting machine, the temperature of extruding is 250 DEG C, pressure 40MPa, one
Processing and forming is into Plastic chair.
Embodiment 3
By it the shearing of the long fiber reinforcement discarded plastic composite board material, will clean up after, and every two layers of long fibre is increased
The precompressed of heat-flash plastic composite plate is as a compound plate unit；
By plastic products such as the discarded polyethylene of recycling, polypropylene, nylon, organic glass, polymethyl methacrylates
Mixture sheared to obtain block plastics, so as to be sent into rotary drum washer in cleaned；
Mixture is immersed in the water that temperature is 35 DEG C and is rolled strand repeatedly, to remove grease and dirt；
Mixture after cleaning is sent into vacuum drier and is dried in vacuo, vacuum drying temperature is 60 DEG C, pressure
Power is 0.08MPa；
Mixture after evaporation is inserted and is provided in the conveyer belt of removal irony facility, irony is removed in transmit process
Sundries；
Mixture that vacuum high-temperature is gone after water process is fluffy to be unfavorable for postorder processing, by right at a temperature of 150 DEG C
Mixture after decontamination carries out spheroidising, and twin-screw machine is recycled thoroughly to crush mixture, obtains powder plastics；Its
In, the average grain diameter of powder plastics is 8mm；
Multiple above-mentioned compound plate units are taken, and above-mentioned powder plastics are uniformly dispersed and are divided between each compound plate unit
It dissipates, forms stepped construction, wherein, mass percentage of the long fiber reinforcement plastic composite board material in stepped construction is
50%；
Above-mentioned stepped construction is inserted in heat pressing forming machines, the temperature of hot pressing is 210 DEG C, pressure 15MPa, is integrally formed
It is processed into plastic garbage cylinder.
Embodiment 4
Clean, every layer of continuous lod heat by discarded continuous fiber reinforcement thermoplastic composite board progress recovery and rinsing
Plastic composite plate is as a compound plate unit；
By plastic products such as the discarded polyethylene of recycling, polypropylene, nylon, organic glass, polymethyl methacrylates
Mixture sheared to obtain block plastics, so as to be sent into rotary drum washer in cleaned；
Mixture is immersed in the water that temperature is 40 DEG C and is rolled strand repeatedly, to remove grease and dirt；
Mixture after cleaning is sent into vacuum drier and is dried in vacuo, vacuum drying temperature is 62 DEG C, pressure
Power is 0.075MPa；
Mixture after evaporation is inserted and is provided in the conveyer belt of removal irony facility, irony is removed in transmit process
Sundries；
Mixture that vacuum high-temperature is gone after water process is fluffy to be unfavorable for postorder processing, by right at a temperature of 220 DEG C
Mixture after decontamination carries out spheroidising, and twin-screw machine is recycled thoroughly to crush mixture, obtains powder plastics；Its
In, the average grain diameter of powder plastics is 5mm；
The continuous fiber reinforcement thermoplastic composite board that polylith cleans up is taken, and is disperseed between each compound plate unit
Above-mentioned powder plastics form stepped construction, wherein, quality hundred of the continuous fiber reinforcement thermoplastic composite board in stepped construction
It is 40% to divide content；
Above-mentioned stepped construction is inserted in heat pressing forming machines, the temperature of hot pressing is 230 DEG C, pressure 20MPa, is integrally formed
It is processed into plastic imitated wood floor board.
Embodiment 5
By the discarded polyethylene of recycling, polypropylene, nylon, organic glass, polymethyl methacrylate, poly- terephthaldehyde
Sour butanediol ester, polyethylene terephthalate, polycarbonate plastic product and discarded short fiber reinforced thermoplasticity are answered
The mixture of plywood material sheared to obtain block plastics, wherein, short fiber reinforced plastic composite board material is in the mixture
Mass percentage is 30%；
Above-mentioned block plastics are sent into ball mill, at a temperature of 200 DEG C block plastics are carried out with spheroidising, then profit
Block plastics are thoroughly crushed with twin-screw machine, obtain powder plastics；Wherein, the average grain diameter of powder plastics is 4mm；
Powder plastics after crushing are inserted in single lead screw ex truding briquetting machine, the temperature of extruding is 180 DEG C, pressure 30MPa, one
Processing and forming is into plastic containing case.
As can be seen that Examples 1 to 5 is using the mixed plastic product recycled from foregoing description, and control wherein fiber
Enhancing thermoplasticity meets the mass percentage of plate in the range of 10~60% so that the various embodiments described above can not only be prepared
Various plastic products required in the market are obtained, and prepared plastic product disclosure satisfy that the hardness and toughness of corresponding product
Wait performance requirements.As it can be seen that using the waste plastic reuse method of the application, pass through simple processing step and general equipment
Waste fiber enhancing plastic composite board material and a variety of plastic refuses can be directly prepared into the plastics system needed for container etc.
Product make a variety of plastic refuses obtain integrated treatment, avoid the sky high cost chosen, handled respectively respectively；Plastic refuse
It is handled, environmentally friendly protection；Plate is directly obtained after plastic refuse processing, simple for process, whole process is close
It is carried out in the system closed, non-secondary pollution, is suitble to produce in enormous quantities.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (14)
1. a kind of reuse method of waste plastic, which is characterized in that the reuse method comprises the following steps：
The mixture of a variety of waste plastics is ground into block plastics；
The block plastics are worn into powder plastics；And
By the powder plastic pressing forming；
The step of powder plastic pressing forming, is included：
By the powder Plastic dispersion between the compound plate unit of multiple fiber reinforced thermolplastics, stepped construction, Mei Gesuo are formed
State the fiber reinforced thermolplastic composite plate discarded of multilayer that the compound plate unit of fiber reinforced thermolplastic includes one layer or is stacked；
By the stepped construction compression moulding.
2. reuse method according to claim 1, which is characterized in that the mixture of a variety of waste plastics includes
Fiber reinforced thermolplastic composite material.
3. reuse method according to claim 2, which is characterized in that the mixture of a variety of waste plastics includes
Mass percentage is 10~60% fiber reinforced thermolplastic composite material.
4. reuse method according to claim 1, which is characterized in that multiple fiber reinforced thermolplastic composite plate lists
Member is identical.
5. reuse method according to claim 1, which is characterized in that multiple fiber reinforced thermolplastic composite plate lists
At least two compound plate units of fiber reinforced thermolplastic are different in member.
6. reuse method according to claim 1, which is characterized in that the fiber reinforced thermolplastic composite plate is described
Mass percentage in stepped construction is 10~60%.
7. reuse method according to any one of claim 1 to 6, which is characterized in that described by a variety of discarded modelings
Before the step of mixture of material is ground into block plastics, the reuse method further includes：The mixture is carried out successively
It is cleaning, dry and the step of except metal impurities.
8. reuse method according to claim 7, which is characterized in that cleaned in the step of the cleaning with water.
9. reuse method according to claim 7, which is characterized in that using vacuum drying in the step of the drying.
10. reuse method according to claim 7, which is characterized in that the step of the drying is at 55~65 DEG C, pressure
Power is dried in vacuo under conditions of being 0.07~0.091MPa.
11. reuse method according to any one of claim 1 to 6, which is characterized in that by institute by the way of ball milling
It states block plastics and wears into powder plastics.
12. reuse method according to claim 11, which is characterized in that the grain size of the powder plastics is less than 10mm.
13. reuse method according to claim 1, which is characterized in that the step of by the stepped construction compression moulding
It is middle to be suppressed using the method for hot pressing.
14. reuse method according to claim 13, which is characterized in that the temperature of the hot pressing is 110~250 DEG C,
Pressure is 10~40MPa.
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| CN107556615A (en) * | 2017-09-12 | 2018-01-09 | 滁州远方车船装备工程有限公司 | A kind of preparation method of hollow foaming regenerated plastics sound absorption particle |
| CN113119351B (en) * | 2021-04-26 | 2023-03-21 | 肥城联谊工程塑料有限公司 | Method for preparing reclaimed material from thermoplastic composite material stretched product |
| CN113650193B (en) * | 2021-08-13 | 2022-05-13 | 四川大学 | Method for recycling multi-component mixed plastic waste |
| CN114454521A (en) * | 2022-02-09 | 2022-05-10 | 物极建筑装饰材料(常州)有限公司 | Low-cost environment-friendly recyclable PETG (polyethylene terephthalate glycol) composite board and preparation method thereof |
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| US5589260A (en) * | 1993-07-23 | 1996-12-31 | Palboard Ltd. | Method and apparatus for producing plastic products |
| CN1864973A (en) * | 2005-12-19 | 2006-11-22 | 张建华 | Disposal and utilization method of chemical synthesized solidified waste with inner glass fiber |
| CN1792618A (en) * | 2006-01-06 | 2006-06-28 | 清华大学 | Method for mfg. glass fiber reinforced plastic product by nonmetal powder of waste circuit board |
| CN103302927A (en) * | 2012-03-08 | 2013-09-18 | 上海杰事杰新材料(集团)股份有限公司 | Composite material for container base plate and preparation method thereof |
| CN103786352A (en) * | 2012-10-31 | 2014-05-14 | 辽宁辽杰科技有限公司 | Recovery utilization method of continuous fiber-reinforced thermoplastic composite waste material |
| CN104441671A (en) * | 2014-09-26 | 2015-03-25 | 陕西创源智汇新材料科技股份有限公司 | Method for preparing LFT-D (long fiber reinforced thermoplastic composite) dung draining plate by utilizing production leftovers |
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