CN109651775A - A kind of chemical thickening method of reuse polyethylene terephthalate - Google Patents
A kind of chemical thickening method of reuse polyethylene terephthalate Download PDFInfo
- Publication number
- CN109651775A CN109651775A CN201811589894.7A CN201811589894A CN109651775A CN 109651775 A CN109651775 A CN 109651775A CN 201811589894 A CN201811589894 A CN 201811589894A CN 109651775 A CN109651775 A CN 109651775A
- Authority
- CN
- China
- Prior art keywords
- polyethylene terephthalate
- screw extruder
- reuse
- chain extender
- melting extrusion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
Abstract
The invention discloses a kind of chemical thickening methods of reuse polyethylene terephthalate, including ingredient: the bottle piece of the reunion material of polyethylene terephthalate, polyethylene terephthalate is mixed, it is sent into double screw extruder melting extrusion, chain extender is added during melting extrusion to be reacted, the reaction time 30 seconds ~ 5 minutes；The screw diameter of double screw extruder is 36 ~ 53mm, and extruder temperature is 270 DEG C, and screw extruder carries out vacuumize process.The method of the present invention is easy, can effectively improve reuse polyethylene terephthalate inherent viscosity, reuse polyethylene terephthalate inherent viscosity is increased to 0.85dl/g or more.
Description
Technical field
The present invention relates to a kind of thickening methods of reuse polyethylene terephthalate.
Background technique
The returns of existing polyethylene terephthalate, since inherent viscosity is low, generally in 0.55dl/g or so,
It is difficult to that high-intensitive monofilament is made.
Summary of the invention
The purpose of the present invention is to provide a kind of reuse polyethylene terephthalate inherent viscosities of capable of effectively improving
The chemical thickening method of reuse polyethylene terephthalate.
The technical solution of the invention is as follows:
A kind of chemical thickening method of reuse polyethylene terephthalate, it is characterized in that: including the following steps:
(1) ingredient: the raw material of following mass percent is mixed:
The reunion material 30 ~ 50% of polyethylene terephthalate
The bottle piece 50 ~ 70% of polyethylene terephthalate；
(2) above-mentioned raw materials are sent into double screw extruder melting extrusion, chain extender is added during melting extrusion and is reacted, instead
30 seconds ~ 5 minutes between seasonable；The screw diameter of double screw extruder be 36 ~ 53mm, extruder temperature be 270 DEG C, screw extruder into
Row vacuumize process.
The chain extender are as follows: bisoxazoline (BOZ), pyromellitic acid anhydride (PMDA), diisocyanate one kind or
Three kinds of compoundings (compound proportion is bisoxazoline: pyromellitic acid anhydride: diisocyanate=20 ~ 30:30 ~ 40:30 ~ 50)；Chain extension
The dosage of agent is the 0.1 ~ 0.5% of step (1) raw material dosage.
The method of the present invention is easy, can effectively improve reuse polyethylene terephthalate inherent viscosity, by poly- pair of reuse
Ethylene terephthalate inherent viscosity is increased to 0.85dl/g or more.
Below with reference to embodiment, the invention will be further described.
Embodiment 1:
A kind of chemical thickening method of reuse polyethylene terephthalate, including the following steps:
(1) ingredient: the raw material of following mass percent is mixed:
The reunion material 40% of polyethylene terephthalate
The bottle piece 60% of polyethylene terephthalate；
(2) above-mentioned raw materials are sent into double screw extruder melting extrusion, chain extender is added during melting extrusion and is reacted, instead
2 minutes between seasonable；The screw diameter of double screw extruder is 42mm(or 38 mm, 41mm, 51 mm, 52mm), extruder temperature is
270 DEG C, screw extruder carries out vacuumize process.
The chain extender are as follows: bisoxazoline；The dosage of chain extender is the 0.2% of step (1) raw material dosage.
Products obtained therefrom inherent viscosity >=0.85dl/g.
Embodiment 2:
A kind of chemical thickening method of reuse polyethylene terephthalate, including the following steps:
(1) ingredient: the raw material of following mass percent is mixed:
The reunion material 50% of polyethylene terephthalate
The bottle piece 50% of polyethylene terephthalate；
(2) above-mentioned raw materials are sent into double screw extruder melting extrusion, chain extender is added during melting extrusion and is reacted, instead
3 minutes between seasonable；The screw diameter of double screw extruder is 50mm(or 38 mm, 42 mm, 51 mm, 52mm), extruder temperature is
270 DEG C, screw extruder carries out vacuumize process.
The chain extender are as follows: pyromellitic acid anhydride；The dosage of chain extender is the 0.3% of step (1) raw material dosage.
Products obtained therefrom inherent viscosity >=0.90dl/g.
Embodiment 3:
A kind of chemical thickening method of reuse polyethylene terephthalate, including the following steps:
(1) ingredient: the raw material of following mass percent is mixed:
The reunion material 30% of polyethylene terephthalate
The bottle piece 70% of polyethylene terephthalate；
(2) above-mentioned raw materials are sent into double screw extruder melting extrusion, chain extender is added during melting extrusion and is reacted, instead
4 minutes between seasonable；The screw diameter of double screw extruder is 53mm(or 38 mm, 42 mm, 51 mm, 52mm), extruder temperature is
270 DEG C, screw extruder carries out vacuumize process.
The chain extender are as follows: three kinds of bisoxazoline (BOZ), pyromellitic acid anhydride (PMDA), diisocyanate compounds
(compound proportion is bisoxazoline: pyromellitic acid anhydride: diisocyanate=20 ~ 30:30 ~ 40:30 ~ 50)；The dosage of chain extender
It is the 0.45% of step (1) raw material dosage.
Products obtained therefrom inherent viscosity >=0.99dl/g.
Claims (2)
1. a kind of chemical thickening method of reuse polyethylene terephthalate, it is characterized in that: including the following steps:
(1) ingredient: the raw material of following mass percent is mixed:
The reunion material 30 ~ 50% of polyethylene terephthalate
The bottle piece 50 ~ 70% of polyethylene terephthalate；
(2) above-mentioned raw materials are sent into double screw extruder melting extrusion, chain extender is added during melting extrusion and is reacted, instead
30 seconds ~ 5 minutes between seasonable；The screw diameter of double screw extruder be 36 ~ 53mm, extruder temperature be 270 DEG C, screw extruder into
Row vacuumize process.
2. a kind of chemical thickening method of reuse polyethylene terephthalate according to claim 1, it is characterized in that:
The chain extender are as follows: bisoxazoline, pyromellitic acid anhydride, one kind of diisocyanate or three kinds of compoundings, compound proportion are
Bisoxazoline: pyromellitic acid anhydride: diisocyanate=20 ~ 30:30 ~ 40:30 ~ 50；The dosage of chain extender is that step (1) is former
Expect the 0.1 ~ 0.5% of dosage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811589894.7A CN109651775A (en) | 2018-12-25 | 2018-12-25 | A kind of chemical thickening method of reuse polyethylene terephthalate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811589894.7A CN109651775A (en) | 2018-12-25 | 2018-12-25 | A kind of chemical thickening method of reuse polyethylene terephthalate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109651775A true CN109651775A (en) | 2019-04-19 |
Family
ID=66116017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811589894.7A Pending CN109651775A (en) | 2018-12-25 | 2018-12-25 | A kind of chemical thickening method of reuse polyethylene terephthalate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109651775A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110126136A (en) * | 2019-05-20 | 2019-08-16 | 安徽东锦资源再生科技有限公司 | Utilize the technics of enhancing viscosity of Pillar recovery bottle piece processing HMLS Polyester silk |
| CN110669321A (en) * | 2019-11-11 | 2020-01-10 | 南通新帝克单丝科技股份有限公司 | Preparation method of chemically tackified regenerated PET (polyethylene terephthalate) and monofilament |
| CN110983452A (en) * | 2019-12-19 | 2020-04-10 | 中山市东龙新材料有限公司 | Preparation method of black PET zipper monofilament |
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|---|---|---|---|---|
| WO2004101666A2 (en) * | 2003-05-19 | 2004-11-25 | Polymers Australia Pty. Limited | Polyester masterbatch composition |
| CN101659757A (en) * | 2009-09-28 | 2010-03-03 | 华东理工大学 | Method for preparing medium-viscosity PET slice by recycled low-viscosity polyester yarn |
| CN102417697A (en) * | 2011-09-22 | 2012-04-18 | 东莞上海大学纳米技术研究院 | Waste PET toughening tackifying method and PET pellet prepared by using same |
| CN102797067A (en) * | 2012-08-28 | 2012-11-28 | 扬州天富龙科技纤维有限公司 | Preparation method of renewable polyester POY (Pre-oriented Yarn) color fibers |
| CN104829809A (en) * | 2014-02-11 | 2015-08-12 | 王祖文 | High-molecular foam material |
| US20180044518A1 (en) * | 2010-05-06 | 2018-02-15 | Johnson & Johnson Vision Care, Inc. | Non-reactive, hydrophilic polymers having terminal siloxanes and methods for making and using the same |
-
2018
- 2018-12-25 CN CN201811589894.7A patent/CN109651775A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004101666A2 (en) * | 2003-05-19 | 2004-11-25 | Polymers Australia Pty. Limited | Polyester masterbatch composition |
| CN101659757A (en) * | 2009-09-28 | 2010-03-03 | 华东理工大学 | Method for preparing medium-viscosity PET slice by recycled low-viscosity polyester yarn |
| US20180044518A1 (en) * | 2010-05-06 | 2018-02-15 | Johnson & Johnson Vision Care, Inc. | Non-reactive, hydrophilic polymers having terminal siloxanes and methods for making and using the same |
| CN102417697A (en) * | 2011-09-22 | 2012-04-18 | 东莞上海大学纳米技术研究院 | Waste PET toughening tackifying method and PET pellet prepared by using same |
| CN102797067A (en) * | 2012-08-28 | 2012-11-28 | 扬州天富龙科技纤维有限公司 | Preparation method of renewable polyester POY (Pre-oriented Yarn) color fibers |
| CN104829809A (en) * | 2014-02-11 | 2015-08-12 | 王祖文 | High-molecular foam material |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110126136A (en) * | 2019-05-20 | 2019-08-16 | 安徽东锦资源再生科技有限公司 | Utilize the technics of enhancing viscosity of Pillar recovery bottle piece processing HMLS Polyester silk |
| CN110126136B (en) * | 2019-05-20 | 2021-04-23 | 安徽东锦资源再生科技有限公司 | Tackifying process for processing high-modulus low-shrinkage polyester yarns by utilizing recycled polyester bottle flakes |
| CN110669321A (en) * | 2019-11-11 | 2020-01-10 | 南通新帝克单丝科技股份有限公司 | Preparation method of chemically tackified regenerated PET (polyethylene terephthalate) and monofilament |
| CN110983452A (en) * | 2019-12-19 | 2020-04-10 | 中山市东龙新材料有限公司 | Preparation method of black PET zipper monofilament |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190419 |
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| RJ01 | Rejection of invention patent application after publication |