CN108610607A - A kind of modified polyethylene terephthalate composition - Google Patents
A kind of modified polyethylene terephthalate composition Download PDFInfo
- Publication number
- CN108610607A CN108610607A CN201611138100.6A CN201611138100A CN108610607A CN 108610607 A CN108610607 A CN 108610607A CN 201611138100 A CN201611138100 A CN 201611138100A CN 108610607 A CN108610607 A CN 108610607A
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- China
- Prior art keywords
- polyethylene terephthalate
- polyvinyl acetate
- parts
- terephthalate composition
- modified polyethylene
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
-
- 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
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
-
- 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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention discloses a kind of modified polyethylene terephthalate composition, and the composition includes following raw material components and parts by weight：100 parts of polyethylene terephthalate, 20~40 parts of polyvinyl acetate, 1~5 part of low density polyethylene (LDPE), 1~5 part of poly terephthalic acid dimethyl ester, 1~2 part of compatilizer, 0.1~0.5 part of antioxidant, 1~5 part of lubricant.Modified polyethylene terephthalate composition elasticity disclosed in the present invention and flexible, intensity height.
Description
Technical field
The present invention relates to a kind of polymeric material field more particularly to a kind of modified polyethylene terephthalate combinations
Object.
Background technology
Polyethylene terephthalate, chemical formula COC6H4COOCH2CH2O.(English：Polyethylene
Terephthalate, abbreviation PET), it is exchanged with glycol ester by dimethyl terephthalate (DMT) or with terephthalic acid (TPA) and ethylene glycol
Esterification first synthesizes bishydroxyethyl terephthalate, then carries out polycondensation reaction again and is made.Belong to crystal type saturated polyester, is milky
Or light yellow, highly crystalline polymer, smooth surface is glossy.Common a kind of resin in life, can be divided into APET,
RPET and PETG.
PET has excellent physical mechanical property within the scope of wider temperature, and long-time service temperature is up to 120 DEG C, electricity
Insulating properties is excellent, or even under high-temperature high-frequency, electrical property is still preferable, but corona resistance is poor, creep resistance, fatigue durability,
Rub resistance, dimensional stability are all fine.
Although the performance advantage of PET makes it have a wide range of applications in numerous areas, since PET is polyester material
Material, is brittle film, and to make the reduction of pliability of PET film, intensity is low, seriously hampers its application and its rigidity is big, be unfavorable for
Processing after molding.
Invention content
In view of this, the present invention provides a kind of flexible, the good polyethylene terephthalate composition of elasticity.
In order to solve the above technical problems, the technical scheme is that being combined using a kind of polyethylene terephthalate
Object, which is characterized in that the composition includes following raw material components and parts by weight：
Preferably, the polyvinyl acetate is homopolymerization polyvinyl acetate.
Preferably, the number-average molecular weight of the polyvinyl acetate is 8000~12000.
Preferably, the compatilizer is one in cyclic acid anhydride type compatilizer, ST-2 compatilizers and ST-4 compatilizers
Kind is several.
Preferably, the lubricant is selected from one or more of solid paraffin, polyethylene wax and calcium stearate.
Preferably, the polyvinyl acetate is 20~30 parts.
Preferably, the lubricant is 2~5 parts.
Preferably, the antioxidant is o-phthalic acid dibutyl ester.
Preferably, the number-average molecular weight of the linear low density polyethylene is 150000~300000.
Polyvinyl acetate, low-density are added in modified polyethylene terephthalate composition disclosed in the present invention
Polyethylene, poly terephthalic acid dimethyl ester, adjust the melt fluidity of polyethylene terephthalate and increase its elasticity and
Toughness.Increasing compatilizer simultaneously makes to generate between different material that compatibility is good, and increasing antioxidant prevents polyester material from aoxidizing,
Lubricant increases the lubricity of molecule interchain.Not only overcome polyethylene terephthalate poor processability in the prior art
Disadvantage, and its be applied to super high molecular weight PE wear-resistant pipes on when have wear-resisting property it is excellent, impact resistance it is excellent and it is resistance to always
The advantages of change is had excellent performance, meets the needs mass produced in actual industrial.It can be used for engineering plastics or explosive packaging
Inner membrance.
Specific implementation mode
In order to make those skilled in the art more fully understand technical scheme of the present invention, With reference to embodiment
The present invention is described in further detail.
Embodiment 1
Polyethylene terephthalate composition in the present embodiment, including following raw material components and parts by weight：
Specifically, the polyvinyl acetate is homopolymerization polyvinyl acetate.Specifically, the number of the polyvinyl acetate
Average molecular weight is 10000.Specifically, the compatilizer is selected from cyclic acid anhydride type compatilizer, ST-2 compatilizers.Specifically, institute
It states lubricant and is selected from solid paraffin.The preparation method of polyethylene terephthalate composition described above, includes the following steps：
1) raw material components parts by weight are pressed, all raw materials are mixed in high-speed mixer；
2) extrusion is added twin-screw extrude, 270 DEG C, engine speed 500rpm, feeding rotating speed 27rpm of extrusion temperature,
Vacuum degree≤0.04MPa.
Embodiment 2
Polyethylene terephthalate composition in the present embodiment, including following raw material components and parts by weight：
Specifically, the polyvinyl acetate is homopolymerization polyvinyl acetate.Specifically, the number of the polyvinyl acetate
Average molecular weight is 8000.Specifically, the compatilizer is selected from cyclic acid anhydride type compatilizer, ST-2 compatilizers and ST-4 compatilizers
One or more of.The lubricant is selected from polyethylene wax.
The preparation method of polyethylene terephthalate composition described above, includes the following steps：
1) raw material components parts by weight are pressed, all raw materials are mixed in high-speed mixer；
2) extrusion is added twin-screw extrude, 210 DEG C, engine speed 520rpm, feeding rotating speed 30rpm of extrusion temperature,
Vacuum degree≤0.04MPa.
Embodiment 3
Polyethylene terephthalate composition in the present embodiment, including following raw material components and parts by weight：
Specifically, the polyvinyl acetate is homopolymerization polyvinyl acetate.Specifically, the number of the polyvinyl acetate
Average molecular weight is 12000.Specifically, the compatilizer be selected from cyclic acid anhydride type compatilizer, specifically, the lubricant is selected from
One or more of solid paraffin, polyethylene wax and calcium stearate.
The preparation method of polyethylene terephthalate composition described above, includes the following steps：
1) raw material components parts by weight are pressed, all raw materials are mixed in high-speed mixer；
2) extrusion is added twin-screw extrude, 280 DEG C, engine speed 510rpm, feeding rotating speed 32rpm of extrusion temperature,
Vacuum degree≤0.04MPa.
Embodiment 4
Polyethylene terephthalate composition in the present embodiment, including following raw material components and parts by weight：
Specifically, the polyvinyl acetate is homopolymerization polyvinyl acetate.Specifically, the number of the polyvinyl acetate
Average molecular weight is 11000.Specifically, the compatilizer is compatible selected from cyclic acid anhydride type compatilizer, ST-2 compatilizers and ST-4
One or more of agent.Specifically, the one kind or several of the lubricant in solid paraffin, polyethylene wax and calcium stearate
Kind.The preparation method of polyethylene terephthalate composition described above, includes the following steps：
1) raw material components parts by weight are pressed, all raw materials are mixed in high-speed mixer；
2) extrusion is added twin-screw extrude, 260 DEG C, engine speed 500rpm, feeding rotating speed 30rpm of extrusion temperature,
Vacuum degree≤0.04MPa.
Embodiment 5
Polyethylene terephthalate composition in the present embodiment, including following raw material components and parts by weight：
Specifically, the polyvinyl acetate is homopolymerization polyvinyl acetate.Specifically, the number of the polyvinyl acetate
Average molecular weight is 8000.Specifically, the compatilizer is selected from ST-4 compatilizers.Specifically, the lubricant is selected from stearic acid
Calcium.The preparation method of polyethylene terephthalate composition described above, includes the following steps：
1) raw material components parts by weight are pressed, all raw materials are mixed in high-speed mixer；
2) extrusion is added twin-screw extrude, 280 DEG C, engine speed 500rpm, feeding rotating speed 28rpm of extrusion temperature,
Vacuum degree≤0.04MPa.
Embodiment 6
Polyethylene terephthalate composition in the present embodiment, including following raw material components and parts by weight：
Specifically, the polyvinyl acetate is homopolymerization polyvinyl acetate.Specifically, the number of the polyvinyl acetate
Average molecular weight is 9000.Specifically, the compatilizer is selected from cyclic acid anhydride type compatilizer.Specifically, the lubricant is selected from
Solid paraffin.The preparation method of polyethylene terephthalate composition described above, includes the following steps：
1) raw material components parts by weight are pressed, all raw materials are mixed in high-speed mixer；
2) extrusion is added twin-screw extrude, 290 DEG C, engine speed 515rpm, feeding rotating speed 34rpm of extrusion temperature,
Vacuum degree≤0.04MPa.
Superelevation is made according to Single screw extrusion technique in polyethylene terephthalate composition in above-described embodiment 1~6
Molecular weight PE wear-resistant pipes, specific process parameter are 260~290 DEG C of extrusion temperature, 12~15rpm of screw speed.Specifically, this hair
The extrusion temperature used in bright embodiment is 160 DEG C, screw speed 15rpm.
It the above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair
The limitation of the present invention, protection scope of the present invention should be subject to claim limited range.For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, several improvements and modifications can also be made, these change
Protection scope of the present invention is also should be regarded as into retouching.
Claims (9)
1. a kind of modified polyethylene terephthalate composition, which is characterized in that the composition includes following raw material components
And parts by weight：
100 parts of polyethylene terephthalate
80~100 parts of linear low density polyethylene
20~40 parts of polyvinyl acetate
1~5 part of low density polyethylene (LDPE)
1~5 part of poly terephthalic acid dimethyl ester
1~2 part of compatilizer
0.1~0.5 part of antioxidant
1~5 part of lubricant.
2. stating polyethylene terephthalate composition as claim 1 is modified, which is characterized in that the polyvinyl acetate
For homopolymerization polyvinyl acetate.
3. modified polyethylene terephthalate composition as described in claim 1, which is characterized in that the polyvinyl acetate
Number-average molecular weight be 8000~12000.
4. modified polyethylene terephthalate composition as described in claim 1, which is characterized in that the compatilizer be selected from
One or more of cyclic acid anhydride type compatilizer, ST-2 compatilizers and ST-4 compatilizers.
5. modified polyethylene terephthalate composition as described in claim 1, which is characterized in that the lubricant is selected from solid
One or more of body paraffin, polyethylene wax and calcium stearate.
6. modified polyethylene terephthalate composition as described in claim 1, which is characterized in that the polyvinyl acetate
It is 20~30 parts.
7. modified polyethylene terephthalate composition as described in claim 1, which is characterized in that the lubricant is 2~5
Part.
8. modified polyethylene terephthalate composition as described in claim 1, which is characterized in that the antioxidant is neighbour
Phthalic acid dibutyl ester.
9. as described in claim 1 gather neck phthalic acid and customize composition, which is characterized in that the linear low density polyethylene
The number-average molecular weight of alkene is 150000~300000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611138100.6A CN108610607A (en) | 2016-12-11 | 2016-12-11 | A kind of modified polyethylene terephthalate composition |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611138100.6A CN108610607A (en) | 2016-12-11 | 2016-12-11 | A kind of modified polyethylene terephthalate composition |
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| Publication Number | Publication Date |
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| CN108610607A true CN108610607A (en) | 2018-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611138100.6A Pending CN108610607A (en) | 2016-12-11 | 2016-12-11 | A kind of modified polyethylene terephthalate composition |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022011542A1 (en) * | 2020-07-14 | 2022-01-20 | 驰绿国际股份有限公司 | Composite masterbatch formed by recycling pet plastic bottles and reproducing pet, preparation method, and application of foamed shoe material |
-
2016
- 2016-12-11 CN CN201611138100.6A patent/CN108610607A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022011542A1 (en) * | 2020-07-14 | 2022-01-20 | 驰绿国际股份有限公司 | Composite masterbatch formed by recycling pet plastic bottles and reproducing pet, preparation method, and application of foamed shoe material |
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| PB01 | Publication | ||
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Application publication date: 20181002 |