CN104387731A - Waste plastic modification recovery method - Google Patents
Waste plastic modification recovery method Download PDFInfo
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- CN104387731A CN104387731A CN201410430745.1A CN201410430745A CN104387731A CN 104387731 A CN104387731 A CN 104387731A CN 201410430745 A CN201410430745 A CN 201410430745A CN 104387731 A CN104387731 A CN 104387731A
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- Prior art keywords
- recovery method
- waste plastics
- raw material
- plastics recovery
- plastics
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- 229920003023 plastic Polymers 0.000 title claims abstract description 37
- 239000004033 plastic Substances 0.000 title claims abstract description 37
- 239000002699 waste material Substances 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000011084 recovery Methods 0.000 title claims description 23
- 238000012986 modification Methods 0.000 title description 2
- 230000004048 modification Effects 0.000 title description 2
- 239000002994 raw material Substances 0.000 claims abstract description 18
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 12
- 238000005469 granulation Methods 0.000 claims abstract description 12
- 230000003179 granulation Effects 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 5
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 5
- 239000000314 lubricant Substances 0.000 claims abstract description 5
- 239000003607 modifier Substances 0.000 claims abstract description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 25
- 239000013502 plastic waste Substances 0.000 claims description 21
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 claims description 20
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims description 20
- -1 polyethylene terephthalate Polymers 0.000 claims description 16
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 10
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 10
- 229920001684 low density polyethylene Polymers 0.000 claims description 9
- 239000004702 low-density polyethylene Substances 0.000 claims description 9
- LYKDOWJROLHYOT-UHFFFAOYSA-N 1-(2-hydroxy-4-methylphenyl)ethanone Chemical compound CC(=O)C1=CC=C(C)C=C1O LYKDOWJROLHYOT-UHFFFAOYSA-N 0.000 claims description 6
- DKCPKDPYUFEZCP-UHFFFAOYSA-N 2,6-di-tert-butylphenol Chemical class CC(C)(C)C1=CC=CC(C(C)(C)C)=C1O DKCPKDPYUFEZCP-UHFFFAOYSA-N 0.000 claims description 6
- FEXBEKLLSUWSIM-UHFFFAOYSA-N 2-Butyl-4-methylphenol Chemical compound CCCCC1=CC(C)=CC=C1O FEXBEKLLSUWSIM-UHFFFAOYSA-N 0.000 claims description 6
- RYAIMSPHUVXLQI-UHFFFAOYSA-N 4-(aminomethyl)-2-(benzotriazol-2-yl)phenol Chemical compound NCC1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 RYAIMSPHUVXLQI-UHFFFAOYSA-N 0.000 claims description 6
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 6
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 6
- 229920001903 high density polyethylene Polymers 0.000 claims description 6
- 239000004700 high-density polyethylene Substances 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 239000001993 wax Substances 0.000 claims description 6
- 239000004902 Softening Agent Substances 0.000 claims description 4
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 4
- 238000010298 pulverizing process Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- YEECOJZAMZEUBB-UHFFFAOYSA-N 2,2,3,3,6,6,7,7-octamethyloctane Chemical compound CC(C)(C)C(C)(C)CCC(C)(C)C(C)(C)C YEECOJZAMZEUBB-UHFFFAOYSA-N 0.000 claims description 2
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims description 2
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 2
- 239000012964 benzotriazole Substances 0.000 claims description 2
- 239000012188 paraffin wax Substances 0.000 claims description 2
- 239000004800 polyvinyl chloride Substances 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract 3
- 238000004140 cleaning Methods 0.000 abstract 1
- 239000003431 cross linking reagent Substances 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000009776 industrial production Methods 0.000 abstract 1
- 239000004611 light stabiliser Substances 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 239000004014 plasticizer Substances 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 8
- 239000000047 product Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 229920006238 degradable plastic Polymers 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
A method for modifying and recycling waste plastics adopts the following technical scheme: 1) crushing, cleaning, dehydrating, drying and dehydrating the classified waste plastics to obtain a waste plastic raw material; 2) mixing a waste plastic raw material and a modifier according to a weight ratio of 95-98: 5-2, uniformly mixing; 3) adding the mixed materials into a granulator for blending and granulation; 4) and extruding and molding the master batch by an extruder. The modifier component comprises the following components in percentage by weight: 0-1% of cross-linking agent, 1-5% of light stabilizer, 1-5% of plasticizer, 0.1-0.5% of lubricant and 1-5% of antioxidant. The invention has the beneficial effects that: the invention has better improvement on various recycled waste plastics, so that the performance of the product produced by using the recycled plastics as raw materials is closer to that of the original product. The invention has simple process, low cost, convenient industrial production, higher practical value and higher economic profit.
Description
Technical field
The present invention relates to waste plastics recovery field, particularly relate to a kind of method that modified waste plastics reclaims.
Background technology
A large amount of uses of plastics, also bring environmental pollution while being convenient for people to life.In order to solve " white pollution " that plastics bring, research mainly concentrates on degradable plastics and plastics recovery two aspect.Because the R&D costs of degradable plastics are high, can not realize second stage employ, so the more worth exploitation of the research of plastics recovery.After waste plastic is mainly pressed materials classification by existing waste plastics recovery, carry out heating plasticizing again, in process recycled plastic being added to plasticizing always owing to being heated uneven or temperature is too high, the depolymerization of plastics macromolecular chain can be made, original additives for plastics also can lose, greatly destroy the mechanical property of plastics, make the recycled plastic of secondary processing cannot reach the performance index of brand-new material.In prior art, to the modification of recycled plastic, all program is complicated, and cost is higher, is unsuitable for suitability for industrialized production.The present invention carries out simple properties-correcting agent interpolation to the recycled plastic of unlike material, obtains the product of better performance.
Summary of the invention
The object of this invention is to provide a kind of modified waste plastics recovery method.
The present invention is by the following technical solutions: 1) plastic waste of having classified carried out pulverizing, clean, dewater and oven dry dewater after obtain plastic waste raw material; 2) plastic waste raw material is mixed by weight 95 ~ 98:5 ~ 2 ratio with properties-correcting agent; 3) material mixed is added tablets press is blended, granulation; 4) master batch passes through extruder for shaping.
Described plastic waste comprises polyethylene terephthalate (PET), high density polyethylene(HDPE) (HDPE), Low Density Polyethylene (LDPE), polyvinyl chloride (PVC), polypropylene (PP) etc.
Described modifier components with weight ratio represent comprise following: linking agent 0-1%, photostabilizer 1-5%, softening agent 1-5%, lubricant 0.1-0.5%, antioxidant 1-5%.
Described linking agent comprises 2,5-dimethyl-2,5 di-t-butyl hexane peroxide, diethylenetriamine, benzoyl peroxide.
Described photostabilizer comprises 2-(2 '-hydroxyl-5 '-aminomethyl phenyl) benzotriazole, BP-3, benzotriazole.
Described softening agent comprises dioctyl phthalate (DOP), dibutyl phthalate.
Described lubricant comprises polyethylene wax, low-molecular-weight polypropylene, native paraffin, whiteruss.
Described antioxidant comprises 2,2-methylene-bis (4-methyl-6-butylphenol), 2,6-di-tert-butylphenols.
Beneficial effect of the present invention is: modified waste plastics recovery method of the present invention can improve the recyclability of original plastic waste, and have good improvement to various recovery plastic waste, make recycled plastic be that raw material production product performance are out closer to original product.The ratio of each component of improving agent obtains best proportion through experiment, can well supplement the auxiliary agent lost in recycled plastic process.Present invention process is simple, with low cost, is convenient to suitability for industrialized production, has higher practical value, can obtain higher economic profit.
Embodiment
The present invention is by the following technical solutions: 1) plastic waste of having classified carried out pulverizing, clean, dewater and oven dry dewater after obtain plastic waste raw material; 2) plastic waste raw material is mixed by weight 95 ~ 98:5 ~ 2 ratio with properties-correcting agent; 3) material mixed is added tablets press is blended, granulation; 4) master batch passes through extruder for shaping.
Embodiment one:
Useless for recovery PET carried out pulverize, clean, dewater and oven dry dewater after obtain plastic waste raw material, mix by weight 95:5 in improving agent, then add the blended granulation of tablets press, obtain master batch.
Properties-correcting agent each component ratio: 2,5-dimethyl-2,5 di-t-butyl hexane peroxides 0.5%, 2-(2 '-hydroxyl-5 '-aminomethyl phenyl) benzotriazole 2%, dioctyl phthalate (DOP) 2%, polyethylene wax 0.2%, 2,2-methylene-bis (4-methyl-6-butylphenol) 2%.
Embodiment two:
Useless for recovery PET carried out pulverize, clean, dewater and oven dry dewater after obtain plastic waste raw material, mix by weight 98:2 in improving agent, then add the blended granulation of tablets press, obtain master batch.
Properties-correcting agent each component ratio: 2,5-dimethyl-2,5 di-t-butyl hexane peroxides 0.5%, 2-(2 '-hydroxyl-5 '-aminomethyl phenyl) benzotriazole 2%, dioctyl phthalate (DOP) 2%, polyethylene wax 0.2%, 2,2-methylene-bis (4-methyl-6-butylphenol) 2%.
Embodiment three:
Useless for recovery PET carried out pulverize, clean, dewater and oven dry dewater after obtain plastic waste raw material, mix by weight 95:5 in improving agent, then add the blended granulation of tablets press, obtain master batch.
Properties-correcting agent each component ratio: 2,5-dimethyl-2,5 di-t-butyl hexane peroxides 1%, 2-(2 '-hydroxyl-5 '-aminomethyl phenyl) benzotriazole 5%, dioctyl phthalate (DOP) 5%, polyethylene wax 0.5%, 2,2-methylene-bis (4-methyl-6-butylphenol) 5%.
Embodiment four:
Useless for recovery PET carried out pulverize, clean, dewater and oven dry dewater after obtain plastic waste raw material, mix by weight 98:2 in improving agent, then add the blended granulation of tablets press, obtain master batch.
Properties-correcting agent each component ratio: 2,5-dimethyl-2,5 di-t-butyl hexane peroxides 1%, 2-(2 '-hydroxyl-5 '-aminomethyl phenyl) benzotriazole 5%, dioctyl phthalate (DOP) 5%, polyethylene wax 0.5%, 2,2-methylene-bis (4-methyl-6-butylphenol) 5%.
Testing performance index is carried out to the recycled PET that embodiment one to four produces:
Carry out performance test to embodiments of the invention, result shows that carrying out to the PET reclaimed the product that secondary processing obtains according to the method described in the present invention compares with brand-new material, and property indices all meets national standard.
Embodiment five:
Useless for recovery LDPE plastics carried out pulverize, clean, dewater and oven dry dewater after obtain plastic waste raw material, mix by weight 95:5 in improving agent, then add the blended granulation of tablets press, obtain master batch.
Properties-correcting agent each component ratio: benzoyl peroxide 0.5%, BP-3 2%, dioctyl phthalate (DOP) 2%, whiteruss 0.2%, 2,6-di-tert-butylphenol 2%.
Embodiment six:
Useless for recovery LDPE plastics carried out pulverize, clean, dewater and oven dry dewater after obtain plastic waste raw material, mix by weight 98:2 in improving agent, then add the blended granulation of tablets press, obtain master batch.
Properties-correcting agent each component ratio: benzoyl peroxide 0.5%, BP-3 2%, dioctyl phthalate (DOP) 2%, whiteruss 0.2%, 2,6-di-tert-butylphenol 2%.
Embodiment seven:
Useless for recovery LDPE plastics carried out pulverize, clean, dewater and oven dry dewater after obtain plastic waste raw material, mix by weight 95:5 in improving agent, then add the blended granulation of tablets press, obtain master batch.
Properties-correcting agent each component ratio: benzoyl peroxide 1%, BP-3 5%, dioctyl phthalate (DOP) 5%, whiteruss 0.5%, 2,6-di-tert-butylphenol 5%.
Embodiment eight:
Useless for recovery LDPE plastics carried out pulverize, clean, dewater and oven dry dewater after obtain plastic waste raw material, mix by weight 98:2 in improving agent, then add the blended granulation of tablets press, obtain master batch.
Properties-correcting agent each component ratio: benzoyl peroxide 1%, BP-3 5%, dioctyl phthalate (DOP) 5%, whiteruss 0.5%, 2,6-di-tert-butylphenol 5%.
Testing performance index is carried out to the returned product that embodiment five to eight produces:
Carry out performance test to embodiments of the invention, result shows that carrying out to the LDPE reclaimed the product that secondary processing obtains according to the method described in the present invention compares with brand-new material, and property indices all meets national standard.
Above one embodiment of the present of invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (6)
1. a modified waste plastics recovery method, technical scheme is as follows: 1) plastic waste of having classified carried out pulverizing, clean, dewater and oven dry dewater after obtain plastic waste raw material; 2) plastic waste raw material is mixed by weight 95 ~ 98:5 ~ 2 ratio with properties-correcting agent; 3) material mixed is added tablets press is blended, granulation; 4) master batch passes through extruder for shaping;
Described plastic waste comprises polyethylene terephthalate (PET), high density polyethylene(HDPE) (HDPE), Low Density Polyethylene (LDPE), polyvinyl chloride (PVC), polypropylene (PP) etc.;
Described modifier components with weight ratio represent comprise following: linking agent 0-1%, photostabilizer 1-5%, softening agent 1-5%, lubricant 0.1-0.5%, antioxidant 1-5%.
2. a kind of modified waste plastics recovery method according to claim 1, is characterized in that, described linking agent comprises 2,5-dimethyl-2,5 di-t-butyl hexane peroxide, diethylenetriamine, benzoyl peroxide.
3. a kind of modified waste plastics recovery method according to claim 1, is characterized in that, described photostabilizer comprises 2-(2 '-hydroxyl-5 '-aminomethyl phenyl) benzotriazole, BP-3, benzotriazole.
4. a kind of modified waste plastics recovery method according to claim 1, it is characterized in that, described softening agent comprises dioctyl phthalate (DOP), dibutyl phthalate.
5. a kind of modified waste plastics recovery method according to claim 1, it is characterized in that, described lubricant comprises polyethylene wax, low-molecular-weight polypropylene, native paraffin, whiteruss.
6. a kind of modified waste plastics recovery method according to claim 1, is characterized in that, described antioxidant comprises 2,2-methylene-bis (4-methyl-6-butylphenol), 2,6-di-tert-butylphenols.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410430745.1A CN104387731A (en) | 2014-08-28 | 2014-08-28 | Waste plastic modification recovery method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410430745.1A CN104387731A (en) | 2014-08-28 | 2014-08-28 | Waste plastic modification recovery method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104387731A true CN104387731A (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410430745.1A Pending CN104387731A (en) | 2014-08-28 | 2014-08-28 | Waste plastic modification recovery method |
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| CN (1) | CN104387731A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105419062A (en) * | 2015-12-30 | 2016-03-23 | 天津军星管业集团有限公司 | Material for anti-aging peroxide crosslinking polyethylene pipe |
| CN105670240A (en) * | 2016-01-20 | 2016-06-15 | 中塑联新材料科技湖北有限公司 | High-strength injection molding material prepared from waste polyester bottle flakes and waste polypropylene injection molding materials and preparation method thereof |
| CN106637465A (en) * | 2016-12-08 | 2017-05-10 | 安徽环美刷业有限公司 | Easily degradable and regenerative modified PP (polypropylene) brush wire and preparation method thereof |
| CN107151459A (en) * | 2017-06-08 | 2017-09-12 | 巢湖市天宇渔具有限公司 | A kind of processing method of waste and old fishing net |
| CN107236243A (en) * | 2017-07-25 | 2017-10-10 | 陕西路圣里德太阳能研究院有限公司 | Speculum and preparation method thereof |
| CN107775840A (en) * | 2016-08-27 | 2018-03-09 | 苏州市苏宏塑料有限公司 | Plastic master batch production technology and its intermediate material |
| CN108201709A (en) * | 2018-02-22 | 2018-06-26 | 江苏美能膜材料科技有限公司 | A kind of extracting method of compound plasticizer recycling |
| CN108948524A (en) * | 2018-06-22 | 2018-12-07 | 苏州上车新材料科技有限公司 | MODIFIED PP/PET alloy die casting collet and preparation method thereof |
| CN109721962A (en) * | 2017-10-30 | 2019-05-07 | 江苏瑞凌新能源科技有限公司 | A kind of high light transmission car light lampshade |
| CN112143250A (en) * | 2020-10-22 | 2020-12-29 | 湖南映宏新材料股份有限公司 | Harmless treatment method for plastic-based waste |
| CN112778788A (en) * | 2020-12-31 | 2021-05-11 | 广东乔艺塑胶有限公司 | Composition for recycling waste plastics by using ocean and preparation method thereof |
-
2014
- 2014-08-28 CN CN201410430745.1A patent/CN104387731A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105419062A (en) * | 2015-12-30 | 2016-03-23 | 天津军星管业集团有限公司 | Material for anti-aging peroxide crosslinking polyethylene pipe |
| CN105670240A (en) * | 2016-01-20 | 2016-06-15 | 中塑联新材料科技湖北有限公司 | High-strength injection molding material prepared from waste polyester bottle flakes and waste polypropylene injection molding materials and preparation method thereof |
| CN107775840A (en) * | 2016-08-27 | 2018-03-09 | 苏州市苏宏塑料有限公司 | Plastic master batch production technology and its intermediate material |
| CN107775840B (en) * | 2016-08-27 | 2019-09-06 | 苏州市苏宏塑料有限公司 | Plastic master batch production technology and its intermediate material |
| CN106637465A (en) * | 2016-12-08 | 2017-05-10 | 安徽环美刷业有限公司 | Easily degradable and regenerative modified PP (polypropylene) brush wire and preparation method thereof |
| CN107151459A (en) * | 2017-06-08 | 2017-09-12 | 巢湖市天宇渔具有限公司 | A kind of processing method of waste and old fishing net |
| CN107236243A (en) * | 2017-07-25 | 2017-10-10 | 陕西路圣里德太阳能研究院有限公司 | Speculum and preparation method thereof |
| CN109721962A (en) * | 2017-10-30 | 2019-05-07 | 江苏瑞凌新能源科技有限公司 | A kind of high light transmission car light lampshade |
| CN108201709A (en) * | 2018-02-22 | 2018-06-26 | 江苏美能膜材料科技有限公司 | A kind of extracting method of compound plasticizer recycling |
| CN108948524A (en) * | 2018-06-22 | 2018-12-07 | 苏州上车新材料科技有限公司 | MODIFIED PP/PET alloy die casting collet and preparation method thereof |
| CN112143250A (en) * | 2020-10-22 | 2020-12-29 | 湖南映宏新材料股份有限公司 | Harmless treatment method for plastic-based waste |
| CN112778788A (en) * | 2020-12-31 | 2021-05-11 | 广东乔艺塑胶有限公司 | Composition for recycling waste plastics by using ocean and preparation method thereof |
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Application publication date: 20150304 |
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