CN111363247A - Modified polypropylene resin and application thereof - Google Patents
Modified polypropylene resin and application thereof Download PDFInfo
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- CN111363247A CN111363247A CN202010352208.5A CN202010352208A CN111363247A CN 111363247 A CN111363247 A CN 111363247A CN 202010352208 A CN202010352208 A CN 202010352208A CN 111363247 A CN111363247 A CN 111363247A
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- polypropylene resin
- resin
- modified polypropylene
- hydrogenated
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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
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/10—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained by reactions only involving carbon-to-carbon unsaturated bonds as constituent
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/12—Applications used for fibers
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Artificial Filaments (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides a modified polypropylene resin and application thereof, belonging to the technical field of polypropylene resin materials. Comprises the following components: polypropylene resins, hydrogenated petroleum resins, fluoropolymer processing aids; compared with the prior art, the invention effectively modifies the polypropylene resin, has simple production process and easy implementation, expands the resin source for the polypropylene resin fiber, greatly improves the fluidity of the polypropylene resin, reduces the spinning temperature of the polypropylene resin and improves the strength performance and the elongation at break performance of the modified polypropylene resin applied to the spinning process on the premise of not reducing the relative molecular mass of the polypropylene resin, and is suitable for the high-speed production of the polypropylene resin fiber.
Description
Technical Field
The invention belongs to the technical field of polypropylene resin materials, and particularly relates to a modified polypropylene resin and application thereof.
Background
The polypropylene resin has the advantages of low price, low density and good formability, and the obtained polypropylene resin fiber has the advantages of light weight, high strength, good waterproof effect, good heat preservation function, chemical corrosion resistance and the like, so that the polypropylene resin is widely applied to fiber production and becomes one of main fiber resins.
However, the conventional polypropylene resin has poor flow properties and a high spinning temperature, and thus, a polypropylene resin of a specific specification must be used for spinning. In order to improve the fluidity of polypropylene, foreign companies began to develop and produce fiber-grade polypropylene resin from the beginning of the 60 th 20 th century, and mainly used organic peroxides to degrade polypropylene resin, so that the melt index is increased, the fluidity of polypropylene resin is improved, and the spinnability is improved. For example, CN85100885A, published as 12/20/1985, discloses a high-speed spinning technology for polypropylene, which degrades the average molecular weight of polypropylene resin from more than 20 ten thousand to 8-15 ten thousand by melt extrusion through 0.01-1% of organic peroxide.
From the 80 th of the 20 th century, China develops and produces fiber-grade polypropylene resin by adopting foreign technologies, and can produce fiber-grade polypropylene resin with more than ten grades at home, thereby basically meeting the requirements of domestic polypropylene resin fiber production. However, the polypropylene resin is degraded by the initiation of peroxide, and the fluidity of the polypropylene resin is improved by reducing the molecular weight of the polypropylene resin.
Disclosure of Invention
In view of the above, the present invention provides a modified polypropylene resin to solve the problem that the polypropylene resin improves the flowability thereof by reducing the molecular weight of the polypropylene resin.
The technical scheme of the invention is as follows: a modified polypropylene resin comprising the following components:
a polypropylene resin;
hydrogenated petroleum resins;
a fluoropolymer processing aid;
the fluoropolymer processing aid is a copolymer of two or three of tetrafluoroethylene, hexafluoropropylene and vinylidene fluoride;
the isotactic index of the polypropylene resin is more than or equal to 96 percent;
the hydrogenated petroleum resin is one or more of hydrogenated C5 petroleum resin, hydrogenated C9 petroleum resin, hydrogenated alicyclic petroleum resin or hydrogenated aliphatic/aromatic copolymerized petroleum resin.
Preferably, the polypropylene resin is a film grade polypropylene resin or a fiber grade polypropylene resin.
Preferably, the bromine number of the hydrogenated petroleum resin is less than or equal to 3g/100 g.
Preferably, the preparation method of the modified polypropylene resin comprises the following steps:
1) weighing the following components in percentage by weight: 95-99% of polypropylene resin and 1-5% of a fluorine-containing polymer processing aid, adding the components into a heated double-screw extruder, wherein the temperature of the double-screw extruder is set to be 220-240 ℃, the rotating speed is set to be 400r/min, and performing melt extrusion, grain cutting and drying to obtain polypropylene resin master batches;
2) weighing the following components in percentage by weight: 50-89% of polypropylene resin, 10-30% of hydrogenated petroleum resin and 1-20% of polypropylene resin master batch, adding the components into a double-screw extruder, wherein the temperature of the double-screw extruder is set to be 220-240 ℃, the rotating speed is set to be 400r/min, and carrying out melt extrusion, grain cutting and drying to obtain modified polypropylene resin;
3) carrying out spinning test experiments and strength and elongation at break tests on the modified polypropylene resin obtained in the step 2).
Further preferably, the modified polypropylene resin is applied to melt spinning according to the use of the modified polypropylene resin prepared by the preparation method.
The invention has the beneficial effects that:
compared with the prior art, the invention effectively modifies the polypropylene resin, has simple production process and easy implementation, expands the resin source for the polypropylene resin fiber, greatly improves the fluidity of the polypropylene resin, reduces the spinning temperature of the polypropylene resin and improves the strength performance and the elongation at break performance of the modified polypropylene resin applied to the spinning process on the premise of not reducing the relative molecular mass of the polypropylene resin, and is suitable for the high-speed production of the polypropylene resin fiber.
Detailed Description
The invention will be further illustrated and understood by the following non-limiting examples.
The invention provides a modified polypropylene resin, which comprises the following components:
a polypropylene resin;
hydrogenated petroleum resins;
a fluoropolymer processing aid;
the fluoropolymer processing aid is a copolymer of two or three of tetrafluoroethylene, hexafluoropropylene and vinylidene fluoride; the fluoropolymer processing aid is an aid with low surface energy and low friction coefficient, and is added as an external lubricant, so that the frictional resistance of a melt and a die wall interface is greatly reduced, and the melt flowability of the polypropylene resin is further improved.
The isotactic index of the polypropylene resin is more than or equal to 96 percent;
the hydrogenated petroleum resin is one or more of hydrogenated C5 petroleum resin, hydrogenated C9 petroleum resin, hydrogenated alicyclic petroleum resin or hydrogenated aliphatic/aromatic copolymerized petroleum resin, has a low molecular weight, complete saturation and highly cyclic structure, has a strong plasticizing effect on the polypropylene resin, and achieves the purposes of reducing the melt viscosity of the polypropylene resin, improving the flow property of the polypropylene resin and reducing the processing temperature and the processing current required by processing.
Preferably, the polypropylene resin is a film grade polypropylene resin or a fiber grade polypropylene resin.
Preferably, the bromine number of the hydrogenated petroleum resin is less than or equal to 3g/100 g.
Preferably, the preparation method of the modified polypropylene resin comprises the following steps:
1) weighing the following components in percentage by weight: 95-99% of polypropylene resin and 1-5% of a fluorine-containing polymer processing aid, adding the components into a heated double-screw extruder, wherein the temperature of the double-screw extruder is set to be 220-240 ℃, the rotating speed is set to be 400r/min, and performing melt extrusion, grain cutting and drying to obtain polypropylene resin master batches;
2) weighing the following components in percentage by weight: 50-89% of polypropylene resin, 10-30% of hydrogenated petroleum resin and 1-20% of polypropylene resin master batch, adding the components into a double-screw extruder, wherein the temperature of the double-screw extruder is set to be 220-240 ℃, the rotating speed is set to be 400r/min, and carrying out melt extrusion, grain cutting and drying to obtain modified polypropylene resin;
3) carrying out spinning test experiments and strength and elongation at break tests on the modified polypropylene resin obtained in the step 2).
Further preferably, the modified polypropylene resin is applied to melt spinning according to the use of the modified polypropylene resin prepared by the preparation method.
Example 1
The invention provides a modified polypropylene resin, which comprises the following steps:
1) weighing the following components in percentage by weight: the preparation method comprises the following steps of (1) adding 98% of BOPP film grade melt flow rate produced by medium petrochemical industry to be 2g/10min, isotactic index to be 97%, polypropylene resin with the brand number of F280M and 2% of fluoropolymer processing aid Dynamar PPA FX5911 produced by 3M company into a double-screw extruder, setting the temperature of the double-screw extruder to be 220-240 ℃, setting the rotating speed to be 400r/min, and carrying out melt extrusion, grain cutting and drying to obtain polypropylene resin master batches;
2) weighing the following components in percentage by weight: 87.5 percent of BOPP film grade melt flow rate produced by medium petrochemical industry is 2g/10min, the isotactic index is 97 percent, the polypropylene resin is F280M, 10 percent of hydrogenated petroleum resin is produced by Eastman company, the bromine value is 1g/100g, the mark is C-100W, 2.5 percent of polypropylene resin master batch, and the components are added into a double-screw extruder, wherein the temperature of the double-screw extruder is set to be 220-240 ℃, the rotating speed is set to be 400r/min, and the modified polypropylene resin is obtained by melt extrusion, grain cutting and drying;
3) the obtained modified polypropylene resin is subjected to spinning test experiments, after modification, the spinning speed reaches 1500m/min, the spinning temperature of the modified polypropylene resin is reduced, and compared with the polypropylene resin for spinning with the petrochemical fusion index of 12g/min and the mark of Y1200, the spinning speed is improved, and the spinning temperature is reduced. Through the comparison, the modified polypropylene resin obtained by the technical scheme has the advantages that the flowability of the polypropylene resin is represented through the spinning speed on the premise of not reducing the relative molecular mass of the polypropylene resin, the flowability of the polypropylene resin is greatly improved, and the spinning temperature required by the modified polypropylene resin is reduced.
Example 2
The invention provides a modified polypropylene resin, which comprises the following steps:
1) weighing the following components in percentage by weight: the preparation method comprises the following steps of adding 95% of BOPP film-grade melt flow rate produced by medium petrochemical industry to be 3.0g/10min, isotactic index to be 97%, polypropylene resin with the trademark of EP3T56F-M, 5% of fluoropolymer processing aid which is produced by Altfona and is of the trademark of Kynar Flex2500 into a double-screw extruder, setting the temperature of the double-screw extruder to be 220-240 ℃, setting the rotating speed to be 400r/min, and carrying out melt extrusion, grain cutting and drying to obtain polypropylene resin master batches;
2) weighing the following components in percentage by weight: 66% of BOPP film grade melt flow rate produced by medium petrochemical industry is 3.0g/10min, isotactic index is 97%, polypropylene resin with the trademark of EP3T56F-M, 30% of hydrogenated petroleum resin with the trademark of P-100 and the trademark of bromine value of 2.5g/100g produced by light extraction company and 4% of polypropylene resin master batch are added into a double-screw extruder, wherein the temperature of the double-screw extruder is set to be 220-240 ℃, the rotating speed is set to be 400r/min, and the modified polypropylene resin is obtained by melt extrusion, grain cutting and drying;
3) the obtained modified polypropylene resin is subjected to spinning test experiments and strength and elongation at break tests, and the detection results are as follows: after modification, the spinning speed of the obtained modified polypropylene resin is 3000m/min, the spinning speed is further improved relative to the spinning polypropylene resin with the petrochemical melt index of 33g/10min and the trademark of Y835, the spinning speed of the spinning polypropylene resin with the melt index of 34.1g/10min and the trademark of PC-961 of Hercules company, the strength and the elongation at break of the obtained finished yarn are equivalent to Y835, and the strength is 0.2cN/dtex higher than that of PC-961.
By combining the embodiment 1 and the embodiment 2, the flowability of the polypropylene resin is represented by the spinning speed, and compared with the prior art, the spinning speed of the obtained modified polypropylene resin is further improved on the premise of not reducing the relative molecular mass of the polypropylene resin, so that the flowability of the polypropylene resin is greatly improved; the spinning temperature required by the modified polypropylene resin is reduced, and the strength is further improved.
The foregoing embodiments and description have been presented only to illustrate the principles and preferred embodiments of the invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention as hereinafter claimed.
Claims (5)
1. A modified polypropylene resin is characterized by comprising the following components:
a polypropylene resin;
hydrogenated petroleum resins;
a fluoropolymer processing aid;
the fluoropolymer processing aid is a copolymer of two or three of tetrafluoroethylene, hexafluoropropylene and vinylidene fluoride;
the isotactic index of the polypropylene resin is more than or equal to 96 percent;
the hydrogenated petroleum resin is one or more of hydrogenated C5 petroleum resin, hydrogenated C9 petroleum resin, hydrogenated alicyclic petroleum resin or hydrogenated aliphatic/aromatic copolymerized petroleum resin.
2. The modified polypropylene resin of claim 1, wherein the polypropylene resin is a film-grade polypropylene resin or a fiber-grade polypropylene resin.
3. The modified polypropylene resin according to claim 1, wherein the hydrogenated petroleum resin has a bromine number of 3g/100g or less.
4. The modified polypropylene resin according to claim 1, wherein the preparation process comprises the steps of:
1) weighing the following components in percentage by weight: adding 95-99% of polypropylene resin and 1-5% of a fluoropolymer processing aid into a heated double-screw extruder, wherein the temperature of the double-screw extruder is set to be 220-240 ℃, the rotating speed is set to be 400r/min, and performing melt extrusion, grain cutting and drying to obtain polypropylene resin master batches;
2) weighing the following components in percentage by weight: adding 50-89% of polypropylene resin, 10-30% of hydrogenated petroleum resin and 1-20% of polypropylene resin master batch into a double-screw extruder, wherein the temperature of the double-screw extruder is set to be 220-240 ℃, the rotating speed is set to be 400r/min, and carrying out melt extrusion, grain cutting and drying to obtain modified polypropylene resin;
3) carrying out spinning test experiments and strength and elongation at break tests on the modified polypropylene resin obtained in the step 2).
5. Use of the modified polypropylene resin obtained by the production method according to claim 4, wherein the modified polypropylene resin is used for melt spinning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010352208.5A CN111363247A (en) | 2020-04-28 | 2020-04-28 | Modified polypropylene resin and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010352208.5A CN111363247A (en) | 2020-04-28 | 2020-04-28 | Modified polypropylene resin and application thereof |
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| Publication Number | Publication Date |
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| CN111363247A true CN111363247A (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010352208.5A Pending CN111363247A (en) | 2020-04-28 | 2020-04-28 | Modified polypropylene resin and application thereof |
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| Country | Link |
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| CN (1) | CN111363247A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991005021A1 (en) * | 1989-10-06 | 1991-04-18 | E.I. Du Pont De Nemours And Company | Processing aid for polymers |
| JP2013044067A (en) * | 2011-08-24 | 2013-03-04 | Japan Polypropylene Corp | Propylene-based resin composition to be used in melt-spinning type electrospinning and melt-spinning method of ultrafine fiber using the same |
-
2020
- 2020-04-28 CN CN202010352208.5A patent/CN111363247A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991005021A1 (en) * | 1989-10-06 | 1991-04-18 | E.I. Du Pont De Nemours And Company | Processing aid for polymers |
| JP2013044067A (en) * | 2011-08-24 | 2013-03-04 | Japan Polypropylene Corp | Propylene-based resin composition to be used in melt-spinning type electrospinning and melt-spinning method of ultrafine fiber using the same |
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