CN102528964A - Pesticide plastic bottle recycling method, agricultural plastic product and rice seeding tray - Google Patents
Pesticide plastic bottle recycling method, agricultural plastic product and rice seeding tray Download PDFInfo
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- CN102528964A CN102528964A CN2010106182363A CN201010618236A CN102528964A CN 102528964 A CN102528964 A CN 102528964A CN 2010106182363 A CN2010106182363 A CN 2010106182363A CN 201010618236 A CN201010618236 A CN 201010618236A CN 102528964 A CN102528964 A CN 102528964A
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- plastic bottle
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- recoverying
- agricultural
- utilizing method
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- 229920003023 plastic Polymers 0.000 title claims abstract description 151
- 239000004033 plastic Substances 0.000 title claims abstract description 151
- 238000000034 method Methods 0.000 title claims abstract description 54
- 239000000575 pesticide Substances 0.000 title abstract description 15
- 238000004064 recycling Methods 0.000 title abstract description 8
- 240000007594 Oryza sativa Species 0.000 title abstract description 3
- 235000007164 Oryza sativa Nutrition 0.000 title abstract description 3
- 235000009566 rice Nutrition 0.000 title abstract description 3
- 238000010899 nucleation Methods 0.000 title abstract 2
- 239000000203 mixture Substances 0.000 claims abstract description 34
- 238000004140 cleaning Methods 0.000 claims abstract description 33
- 239000000126 substance Substances 0.000 claims abstract description 32
- 238000000748 compression moulding Methods 0.000 claims abstract description 15
- 238000001035 drying Methods 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 239000003905 agrochemical Substances 0.000 claims description 93
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 33
- 238000005453 pelletization Methods 0.000 claims description 30
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 24
- 229910052782 aluminium Inorganic materials 0.000 claims description 24
- 239000004411 aluminium Substances 0.000 claims description 24
- 238000002372 labelling Methods 0.000 claims description 23
- 238000002360 preparation method Methods 0.000 claims description 15
- 238000005516 engineering process Methods 0.000 claims description 11
- 238000010298 pulverizing process Methods 0.000 claims description 9
- 239000012670 alkaline solution Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 238000005469 granulation Methods 0.000 claims description 2
- 230000003179 granulation Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 238000000746 purification Methods 0.000 claims description 2
- 238000011084 recovery Methods 0.000 claims description 2
- 239000002699 waste material Substances 0.000 claims description 2
- 230000035939 shock Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract 3
- 239000005030 aluminium foil Substances 0.000 abstract 2
- 239000000447 pesticide residue Substances 0.000 abstract 1
- 235000013339 cereals Nutrition 0.000 description 19
- 239000000047 product Substances 0.000 description 14
- 230000007613 environmental effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010816 packaging waste Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
Abstract
The invention provides a pesticide plastic bottle recycling method, an agricultural plastic product and a rice seeding tray. The pesticide plastic bottle recycling method comprises the following steps of: heating a recycled pesticide plastic bottle, rubbing to remove a label and/or aluminium foil on the surface of the pesticide plastic bottle; smashing the pesticide plastic bottle with the label and/or aluminium foil removed, carrying out chemical cleaning, drying, adding flexibilizer and tackifier and mixing to obtain mixture; and extruding and pelleting the mixture to obtain plastic particles. The invention also relates to an agricultural plastic product prepared by utilizing the plastic particles prepared by the pesticide plastic bottle recycling method by virtue of extruding and/or compression moulding. The pesticide plastic bottle recycling method provided by the invention has simple process and is economic and environmentally friendly, and recycling of resource is realized. The agricultural plastic product prepared by the plastic particles prepared by adopting the method provided by the invention is safe and environmentally friendly, no pesticide residue is kept, and the agricultural plastic product has high shock resistance, is endurable and has low production cost.
Description
Technical field
The invention belongs to the engineering plastics technical field, concrete a kind of agricultural chemicals plastic bottle recoverying and utilizing method and agricultural plastic product, the seedling dish of relating to.
Background technology
China is populous nation, also is large agricultural country, and when a large amount of uses that are accompanied by agricultural chemicals and agricultural output significantly promoted, the useless pesticide bottle that abandons in a large number in rural area, the lake had also caused serious pollution to environment, and in continuous accumulation with enlarge.
Since the last century the nineties; China's pesticides packaging Rapid Realization to mould for glass,, it is estimated up till now for this reason; The annual pesticides packaging discarded object that produces in the whole nation is about 15～200,000 tons, and wherein having approximately about 130,000 tons is packing plastic bottle (PET material about more than 100,000 tons).At present the agricultural chemicals Plastics Packaging Wastes is not had to reclaim basically; Not only caused the significant wastage of the resource and the energy; And serious harm rural ecological environment, these packing plastic bottles are difficult to natural decomposition, and arable soil is worsened; Remaining agricultural chemicals will make soil, underground water and crops residues of pesticides further increase the weight of, and simultaneously peasant's life and health also constituted potential grave danger.If to its in addition recycling, will improve China's rural ecological environmental pollution, a large amount of social resources of joint medicine greatly, produce huge social benefit and certain efficiency of cycling economy.
Let rivers the earth rehabilitation be the conservation culture theory in the concentrated reflection in comprehensive environmental improvement field, be the important handgrip of conservation culture construction, also be the vital task that conservation culture is built.Discarded pesticides packaging bottle has become one big " persistent ailment " that causes environmental pollution, reclaims difficulty, label and aluminium film and is difficult to clean, and subsequent machining technology is complicated; Processing cost is high; Invest greatly etc., and because of reasons such as sewage disposal are as easy as rolling off a log environment is caused for the second time and to pollute, all do not have enterprise all the time and effectively reclaim and utilize; At present, more none overlaps complete feasible recycling and utilizes method again.
Summary of the invention
The purpose of the embodiment of the invention is to overcome the above-mentioned deficiency of prior art, provides a kind of technology simple, and economic environmental protection is to realize a kind of agricultural chemicals plastic bottle recoverying and utilizing method of resource reutilization.
And, the plastic grain that utilizes the preparation of above-mentioned agricultural chemicals plastic bottle recoverying and utilizing method through extruding or/and compression molding makes agricultural plastic product.
The embodiment of the invention also provide a kind of plastic grain that utilizes the preparation of above-mentioned agricultural chemicals plastic bottle recoverying and utilizing method through extruding or/and the seedling dish of compression molding.
In order to realize the foregoing invention purpose, technical scheme of the present invention is following:
A kind of agricultural chemicals plastic bottle recoverying and utilizing method comprises the steps:
To the agricultural chemicals plastic bottle heating of reclaiming, the labeling and/or the aluminium film on said agricultural chemicals plastic bottle surface are removed in friction;
The agricultural chemicals plastic bottle of removing labeling and/or aluminium film is pulverized, Chemical cleaning, drying adds flexibilizer, tackifier mixing, forms mixture;
With the mixture extruding pelletization, obtain plastic grain.
And, the plastic grain that utilizes the preparation of above-mentioned agricultural chemicals plastic bottle recoverying and utilizing method through extruding or/and compression molding makes agricultural plastic product.
Further, the embodiment of the invention also provides a kind of seedling dish, this seedling dish be utilize the preparation of above-mentioned agricultural chemicals plastic bottle recoverying and utilizing method plastic grain through extruding or/and compression molding make.
Above-mentioned agricultural chemicals plastic bottle recoverying and utilizing method can be removed the labeling and/or the aluminium film on agricultural chemicals plastic bottle surface through friction and heat treatment effectively; Through pulverize, chemical cleaning technology is effectively with remains of pesticide that adheres in the agricultural chemicals plastic bottle or contaminant removal, to reach the purpose of safety in production; The interpolation of flexibilizer, tackifier, mechanical performance such as the toughness that effectively provides high extrusion plastic and shock resistance, this method technology is simple, and economic environmental protection has realized resource reutilization.By the plastic grain of this method preparation through extruding or/and compression molding makes agricultural plastic product, seedling dish safety and environmental protection, non agricultural chemical residuum composition, and shock resistance is strong, durable in use, production cost is low.
Description of drawings
Fig. 1 is the agricultural chemicals plastic bottle recoverying and utilizing method process flow diagram of the embodiment of the invention.
The specific embodiment
Clearer for technical problem, technical scheme and beneficial effect that the present invention will be solved, below in conjunction with accompanying drawing and embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The embodiment of the invention provides a kind of technology simple, and economic environmental protection is to realize a kind of agricultural chemicals plastic bottle recoverying and utilizing method of resource reutilization.See also Fig. 1, this agricultural chemicals plastic bottle recoverying and utilizing method comprises the steps:
S1: to the agricultural chemicals plastic bottle heating of reclaiming, the labeling and/or the aluminium film on said agricultural chemicals plastic bottle surface are removed in friction; (different with accompanying drawing, as to put on S1 etc.)
S2: the agricultural chemicals plastic bottle that will remove labeling and/or aluminium film is pulverized, Chemical cleaning, and drying adds flexibilizer, tackifier mixing, forms mixture;
S3:, obtain plastic grain with the mixture extruding pelletization.
Particularly, among the step S1 of above-mentioned agricultural chemicals plastic bottle recoverying and utilizing method, the temperature that the agricultural chemicals plastic bottle that reclaims is heated is preferably 220～285 ℃.This preferred heating-up temperature combines rubbing action, can effectively the labeling and/or the aluminium film that stick to agricultural chemicals plastic bottle surface be removed.In this step; Friction is preferably put into the flute profile conveying worm with the agricultural chemicals plastic bottle and is carried, and in course of conveying, heats, and passes through the effect of the helical tooth of conveyer to the agricultural chemicals plastic bottle; Produce friction, make the labeling and/or the aluminium film that stick to agricultural chemicals plastic bottle surface come off.Labeling and/or aluminium film are collected the agricultural chemicals plastic bottle with after the agricultural chemicals plastic bottle separates.The method of collecting the agricultural chemicals plastic bottle preferably is delivered to labeling and/or aluminium film, agricultural chemicals plastic bottle in the screening machine through the flute profile conveying worm; Remove labeling and/or aluminium film to reach; Collect the purpose of agricultural chemicals plastic bottle, collection agricultural chemicals plastic bottle is delivered to and is carried out pulverization process among the following step S2.
In addition, the agricultural chemicals plastic bottle of the recovery among the step S1 is to reclaim through market, compression packing agricultural chemicals plastic bottle.The agricultural chemicals plastic bottle that reclaims is being heated, friction, labeling and/or the aluminium film of removing said agricultural chemicals plastic bottle surface can carry out preliminary early stage to the agricultural chemicals plastic bottle that reclaims earlier and handle before handling, to remove frame matter such as silt.
Among the step S2 of above-mentioned agricultural chemicals plastic bottle recoverying and utilizing method, the mode that the agricultural chemicals plastic bottle of removing behind labeling and/or the aluminium film is pulverized preferably adopts online high speed disintegrator to pulverize.Agricultural chemicals plastic bottle after the pulverizing carries out Chemical cleaning, and the method for this Chemical cleaning is preferably following:
To pulverize the agricultural chemicals plastic bottle and put into chemical, and under 60～80 ℃ condition, clean 0.5～1h.
Wherein, Chemical cleaning can be carried out in the high temperature cleaning tower.This chemical preferably comprises the alkaline solution that mass concentration is 1～3% NaOH (NaOH).Certainly, also can use other alkaline solutions to substitute.The purpose of this Chemical cleaning is further to remove residual farm chemical ingredients on the agricultural chemicals plastic bottle after the pulverizing.
Further, the agricultural chemicals plastic bottle after pulverizing after carrying out the Chemical cleaning step, is comprised that also the cleaning waste liquid to producing in the Chemical cleaning step carries out the purification process technique step.
Among this step S2, the mode dry to the agricultural chemicals plastic bottle of the pulverizing after cleaning is preferably: the agricultural chemicals plastic bottle of the pulverizing after will cleaning is sent into and is carried out drying in the high temperature cleaning tower, and the temperature of drying is 80～100 ℃, is 2～3h.Certainly, this drying can adopt also the time other modes commonly used of this area to carry out drying, like the mode of drying naturally or dry.
Among this step S2, above-mentioned agricultural chemicals plastic bottle through dried pulverizing is mixed with flexibilizer, tackifier, form mixture, in mixture, the weight percentage of flexibilizer is preferably 1～3%, and the weight percentage of tackifier is preferably 1～5%.Wherein, flexibilizer is preferably at least a among flexibilizer KT-16, flexibilizer KT-22, the flexibilizer KT-22A, and this flexibilizer KT-16, flexibilizer KT-22 or flexibilizer KT-22A can be the logical flexibilizer of producing of Shenyang section; Tackifier are preferably tackifier ADR-4370, and these tackifier ADR-4370 can be the tackifier that German BASF is produced.Flexibilizer of the type and tackifier and agricultural chemicals plastic bottle raw material interact, and the mechanical performances such as toughness and shock resistance of high extrusion plastic can better be provided.Certainly, flexibilizer, tackifier also can adopt other flexibilizer of this area, tackifier to substitute.
Among the step S3 of above-mentioned agricultural chemicals plastic bottle recoverying and utilizing method; The mixture that obtains among the step S2 preferably delivered to carry out extruding pelletization in the extruding granulator, the technology of this extruding pelletization is: with said mixture adopt that the double-screw extruding pelletizing machine is extruded, cooling, granulation; Wherein, mixture is preferably in the temperature of each section of double-screw extruding pelletizing machine: die head temperature is 230～236 ℃, first section 236～240 ℃, second section 240～244 ℃, the 3rd section 244～250 ℃, the 4th section 232～238 ℃; The rotating speed of said double-screw extruding pelletizing machine is 35～45 rev/mins.Further; Mixture is preferably in the temperature of each section of double-screw extruding pelletizing machine: die head temperature is 235 ℃, first section 238 ℃, second section 242 ℃, the 3rd section 245 ℃, the 4th section 235 ℃, and the rotating speed of this double-screw extruding pelletizing machine is preferably 40 rev/mins.
Above-mentioned agricultural chemicals plastic bottle recoverying and utilizing method can be removed the labeling and/or the aluminium film on agricultural chemicals plastic bottle surface through friction and heat treatment effectively; Effectively the remains of pesticide that adheres in the agricultural chemicals plastic bottle is removed through pulverizing, chemical cleaning technology, to reach the purpose of safety in production; The interpolation of flexibilizer, tackifier, mechanical performance such as the toughness that effectively provides high extrusion plastic and shock resistance is particularly referring to numerical value in the table 1.This method technology is simple, and economic environmental protection has realized resource reutilization.By the plastic grain of this method preparation through extruding or/and compression molding makes the agricultural plastic product safety and environmental protection, non agricultural chemical residuum composition, and shock resistance is strong, durable in use, production cost is low.
The embodiment of the invention also provides a kind of agricultural plastic product, this agricultural plastic product by the plastic grain of above-mentioned agricultural chemicals plastic bottle recoverying and utilizing method preparation through extruding or/and compression molding make.
When adopting extrusion molding to make agricultural plastic product, be molded into sheet material through the extrusion calendaring unit.When adopting compression molding to make agricultural plastic product, process using this area of compression moulding plastics compression-molding process commonly used gets final product.
Particularly, above-mentioned agricultural plastic product can be the seedling dish, like seedling dish, rice transplanting dish, seedling dish.Can also be other agricultural plastic products commonly used in the agricultural production; Like Plastic Drum, plastic tub etc.; So long as the plastic grain that adopts the preparation of the invention described above embodiment agricultural chemicals plastic bottle recoverying and utilizing method through extruding or/and compression molding makes agricultural plastic product, all within protection category of the present invention.
Combine instantiation at present, the present invention is further elaborated.
Embodiment 1
Agricultural chemicals plastic bottle recoverying and utilizing method comprises the steps:
S11: the agricultural chemicals plastic bottle that reclaims is put into the flute profile conveying worm carry; In course of conveying, be heated to 250 ℃; And, produce friction through the effect of the helical tooth in the flute profile conveying worm to the agricultural chemicals plastic bottle, remove the labeling and/or the aluminium film on said agricultural chemicals plastic bottle surface;
S12: the agricultural chemicals plastic bottle that will remove labeling and/or aluminium film utilizes online high speed disintegrator to pulverize; Under 70 ℃, carry out Chemical cleaning 0.5h in the high temperature cleaning tower of sending into again; Follow dry 2.5h under 90 ℃; Adding weight percentage then is that 1% the logical KT-16 flexibilizer of producing of Shenyang section, 3% German BASF ADR-4370 tackifier mix, and forms mixture; Wherein, to comprise weight percentage be 2% NaOH (NaOH) solution to the used chemical of this Chemical cleaning;
S13: mixture sent in the ￠ 80mm double-screw extruding pelletizing machine carry out extruding pelletization, obtain plastic grain; Wherein, the temperature of mixture each section in this ￠ 80mm double-screw extruding pelletizing machine is: 235 ℃, first section 238 ℃, second section 242 ℃, the 3rd section 245 ℃, the 4th section 235 ℃ of die head temperatures; The rotating speed of this ￠ 80mm double-screw extruding pelletizing machine is 40 rev/mins.
Embodiment 2
Agricultural chemicals plastic bottle recoverying and utilizing method comprises the steps:
S21: the agricultural chemicals plastic bottle that reclaims is put into the flute profile conveying worm carry; In course of conveying, be heated to 220 ℃; And, produce friction through the effect of the helical tooth in the flute profile conveying worm to the agricultural chemicals plastic bottle, remove the labeling and/or the aluminium film on said agricultural chemicals plastic bottle surface;
S22: the agricultural chemicals plastic bottle that will remove labeling and/or aluminium film utilizes online high speed disintegrator to pulverize; Under 80 ℃, carry out Chemical cleaning 0.7h in the high temperature cleaning tower of sending into again; Follow dry 2h under 100 ℃; Adding weight percentage then is that 1% the logical KT-22 flexibilizer of producing of Shenyang section, 1% German BASF ADR-4370 tackifier mix, and forms mixture; Wherein, to comprise weight percentage be 3% NaOH (NaOH) solution to the used chemical of this Chemical cleaning;
S23: mixture sent in the ￠ 80mm double-screw extruding pelletizing machine carry out extruding pelletization, obtain plastic grain; Wherein, the temperature of mixture each section in this ￠ 80mm double-screw extruding pelletizing machine is: 230 ℃, first section 236 ℃, second section 240 ℃, the 3rd section 250 ℃, the 4th section 238 ℃ of die head temperatures; The rotating speed of this ￠ 80mm double-screw extruding pelletizing machine is 45 rev/mins.
Embodiment 3
Agricultural chemicals plastic bottle recoverying and utilizing method comprises the steps:
S31: the agricultural chemicals plastic bottle that reclaims is put into the flute profile conveying worm carry; In course of conveying, be heated to 285 ℃; And, produce friction through the effect of the helical tooth in the flute profile conveying worm to the agricultural chemicals plastic bottle, remove the labeling and/or the aluminium film on said agricultural chemicals plastic bottle surface;
S32: the agricultural chemicals plastic bottle that will remove labeling and/or aluminium film utilizes online high speed disintegrator to pulverize; Under 60 ℃, carry out Chemical cleaning 1h in the high temperature cleaning tower of sending into again; Follow dry 3h under 80 ℃; Adding weight percentage then is that 3% the logical KT-22A flexibilizer of producing of Shenyang section, 5% German BASF ADR-4370 tackifier mix, and forms mixture; Wherein, to comprise weight percentage be 1% NaOH (NaOH) solution to the used chemical of this Chemical cleaning;
S33: mixture sent in the ￠ 80mm double-screw extruding pelletizing machine carry out extruding pelletization, obtain plastic grain; Wherein, the temperature of mixture each section in this ￠ 80mm double-screw extruding pelletizing machine is: 236 ℃, first section 240 ℃, second section 241 ℃, the 3rd section 244 ℃, the 4th section 232 ℃ of die head temperatures; The rotating speed of this ￠ 80mm double-screw extruding pelletizing machine is 35 rev/mins.
Embodiment 4
Agricultural chemicals plastic bottle recoverying and utilizing method comprises the steps:
S31: the agricultural chemicals plastic bottle that reclaims is put into the flute profile conveying worm carry; In course of conveying, be heated to 270 ℃; And, produce friction through the effect of the helical tooth in the flute profile conveying worm to the agricultural chemicals plastic bottle, remove the labeling and/or the aluminium film on said agricultural chemicals plastic bottle surface;
S32: the agricultural chemicals plastic bottle that will remove labeling and/or aluminium film utilizes online high speed disintegrator to pulverize; Under 65 ℃, carry out Chemical cleaning 1h in the high temperature cleaning tower of sending into again; Follow dry 3h under 90 ℃; Add weight percentage then and be 2.5% be 1: 1 the logical KT-22A that produces of Shenyang section and KT-16 mixings flexibilizer, 4% German BASF ADR-4370 tackifier mixing by mass ratio, the formation mixture; Wherein, to comprise weight percentage be 2% NaOH (NaOH) solution to the used chemical of this Chemical cleaning;
S33: mixture sent in the ￠ 80mm double-screw extruding pelletizing machine carry out extruding pelletization, obtain plastic grain; Wherein, the temperature of mixture each section in this ￠ 80mm double-screw extruding pelletizing machine is: 235 ℃, first section 238 ℃, second section 242 ℃, the 3rd section 245 ℃, the 4th section 235 ℃ of die head temperatures; The rotating speed of this ￠ 80mm double-screw extruding pelletizing machine is 40 rev/mins.
The performance test experiment:
The plastic grain that makes in the foregoing description 1 to embodiment 4 is carried out measuring mechanical property, and test result is seen below table 1:
The plastic grain mechanical performance of table 1 embodiment 1 to embodiment 3 preparation
Can know that by last table 1 the suitable adjustment flexibilizer and the content of tackifier can improve by mechanical performances such as the toughness of the plastic grain of embodiment of the invention method preparation and shock resistances.For the application (like preparation agricultural plastic product, particularly seedling dish) by the plastic grain of embodiment of the invention method preparation provides strong assurance.
Application example 5
The preparation method of seedling dish comprises the steps:
The plastic grain that makes among the embodiment 1 is made the seedling dish according to this area technology commonly used through compression molding.
The above is merely the utility model preferred embodiment; Its structure is not limited to the above-mentioned shape of enumerating; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (10)
1. an agricultural chemicals plastic bottle recoverying and utilizing method comprises the steps:
To the agricultural chemicals plastic bottle heating of reclaiming, the labeling and/or the aluminium film on said agricultural chemicals plastic bottle surface are removed in friction;
The agricultural chemicals plastic bottle of removing labeling and/or aluminium film is pulverized, Chemical cleaning, drying adds flexibilizer, tackifier mixing, forms mixture;
With the mixture extruding pelletization, obtain plastic grain.
2. agricultural chemicals plastic bottle recoverying and utilizing method according to claim 1 is characterized in that: the temperature to the heating of the agricultural chemicals plastic bottle of said recovery is 220～285 ℃.
3. agricultural chemicals plastic bottle recoverying and utilizing method according to claim 1 is characterized in that: said Chemical cleaning is that pulverizing agricultural chemicals plastic bottle is put into chemical, and under 60～80 ℃ condition, cleans 0.5～1h.
4. agricultural chemicals plastic bottle recoverying and utilizing method according to claim 3 is characterized in that: said chemical is to contain the alkaline solution that mass concentration is 1～3% NaOH.
5. agricultural chemicals plastic bottle recoverying and utilizing method according to claim 1 is characterized in that: in said mixture, the weight percentage of said flexibilizer is 1～3%, the weight percentage of said tackifier is 1～5%.
6. agricultural chemicals plastic bottle recoverying and utilizing method according to claim 5 is characterized in that: said flexibilizer is at least a among flexibilizer KT-16, flexibilizer KT-22, the flexibilizer KT-22A; Said tackifier are tackifier ADR-4370.
7. agricultural chemicals plastic bottle recoverying and utilizing method according to claim 1; It is characterized in that: the technology of said extruding pelletization is: with said mixture adopt that the double-screw extruding pelletizing machine is extruded, cooling, granulation, said mixture in the temperature of each section of double-screw extruding pelletizing machine is: die head temperature is 230～236 ℃, first section 236～240 ℃, second section 240～244 ℃, the 3rd section 244～250 ℃, the 4th section 232～238 ℃; The rotating speed of said double-screw extruding pelletizing machine is 35～45 rev/mins.
8. agricultural chemicals plastic bottle recoverying and utilizing method according to claim 1 is characterized in that: after said Chemical cleaning step, comprise that also the cleaning waste liquid to producing in the Chemical cleaning step carries out the purification process technique step.
9. agricultural plastic product is characterized in that: said agricultural plastic product be plastic grain according to the arbitrary described agricultural chemicals plastic bottle recoverying and utilizing method preparation of claim 1～8 through extruding or/and compression molding make.
10. seedling dish is characterized in that: said seedling dish be plastic grain according to the arbitrary described agricultural chemicals plastic bottle recoverying and utilizing method preparation of claim 1～8 through extruding or/and compression molding make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010618236.3A CN102528964B (en) | 2010-12-31 | 2010-12-31 | Pesticide plastic bottle recycling method, agricultural plastic product and rice seeding tray |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010618236.3A CN102528964B (en) | 2010-12-31 | 2010-12-31 | Pesticide plastic bottle recycling method, agricultural plastic product and rice seeding tray |
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| CN102528964A true CN102528964A (en) | 2012-07-04 |
| CN102528964B CN102528964B (en) | 2015-05-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113021675A (en) * | 2021-03-18 | 2021-06-25 | 浙江申新爱思开包装有限公司 | Process for preparing plastic particles by environment-friendly recyclable packaging container |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR102020009165B1 (en) * | 2020-05-08 | 2021-05-25 | Instituto Nacional De Processamento De Embalagens Vazias - Inpev | process for recycling agricultural pesticide packaging |
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| CN100999606A (en) * | 2006-12-31 | 2007-07-18 | 华南理工大学 | Viscosity increased recovery poly-ester and preparation process of it composite material |
| CN101863091A (en) * | 2010-06-12 | 2010-10-20 | 广州丽盈塑料有限公司 | Recovery method of package level high-density polyethylene and polypropylene |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113021675A (en) * | 2021-03-18 | 2021-06-25 | 浙江申新爱思开包装有限公司 | Process for preparing plastic particles by environment-friendly recyclable packaging container |
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| CN102528964B (en) | 2015-05-27 |
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