CN105821512A - Polyester fiber and preparation method thereof - Google Patents
Polyester fiber and preparation method thereof Download PDFInfo
- Publication number
- CN105821512A CN105821512A CN201610318787.5A CN201610318787A CN105821512A CN 105821512 A CN105821512 A CN 105821512A CN 201610318787 A CN201610318787 A CN 201610318787A CN 105821512 A CN105821512 A CN 105821512A
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- China
- Prior art keywords
- polyester
- end capped
- polyester fiber
- capped polyether
- amido
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Classifications
-
- 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
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
- D01D1/06—Feeding liquid to the spinning head
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
-
- 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
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Artificial Filaments (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
The invention provides a polyester fiber and a preparation method thereof. The polyester fiber is characterized by containing polyester and amino terminated polyether, wherein the content of the amino terminated polyether is 0.1-10% of the polyester mass. The polyester fiber has the advantages of high intrinsic viscosity, high fiber strength, excellent color and luster, low costs and the like. The preparation method of the polyester fiber has the advantages that a process is simple, spinning temperature is low, the intrinsic viscosity change of resin is small before and after spinning, and the like.
Description
Technical field
The invention belongs to chemical fibre field, relate to a kind of polyester fiber, be specifically related to a kind of containing amido end capped polyether chemical combination
Polyester fiber of thing and preparation method thereof.
Background technology
Polyester is by polymer general name obtained by polyhydric alcohol and polyprotic acid polycondensation.Refer mainly to polyethylene terephthalate
(PET) linear thermoplastic's resins such as polybutylene terephthalate (PBT) and polyarylate, are the most also included.Merlon (letter
Claim PC) it is the high molecular polymer containing carbonate group in strand, fall within the polyester under broad scope.Merlon according to
The structure of ester group can be divided into the polytypes such as aliphatic, aromatic series, aliphatic-aromatic, but industry refers mainly to the poly-carbon of bisphenol A-type
Acid esters.
Polyester fiber refers to the general designation of fiber obtained by with polyester as raw material.This fibrid has Heat stability is good, high-strength
The excellent properties such as degree, good dimensional stability, are not only widely used in various clothing articles, bedding, upholstery
Deng daily life field, also it is widely used in the industry such as tire, mechanical rubber good, rope, net, hoist cable (carrying), geotechnique, seat belt
Field.
In recent years, along with the continuous expansion of polyester fiber application, polyester fiber is proposed lightweight and high strengthening
Requirement, especially more and more higher to the requirement of strength of its industrial yarn.Improve the method for polyester fiber intensity except optimizing spinning
Outside technique, the most basic method is to improve the molecular weight of polyester.The raising of molecular weight means the quick of polyester melt viscosity
Raise, being smoothed out of spinning to be ensured, need to improve spinning temperature or/and melt shear speed.But on the other hand,
Undue raising spinning temperature and melt shear speed all can cause the thermal degradation of polyester, cause molecular weight to reduce, cause fibroid
The deterioration of energy.Thus, a difficult problem of the preparation of high-molecular-weight poly ester fiber always field of polyester fiber.
Summary of the invention
The technical problem to be solved be to provide a kind of polyester fiber with higher monofilament tensile strength and
Preparation method.
In order to solve above-mentioned technical problem, the invention provides a kind of polyester fiber, it is characterised in that comprise polyester and amine
Base end capped polyether, wherein, the content of amido end capped polyether is the 0.1-10% of polyester quality.
Preferably, described polyester is polyethylene terephthalate, polybutylene terephthalate (PBT), poly-naphthalene diformazan
Acid glycol ester, PBN, PTT, polycyclohexylene's dimethanol
Ester, Merlon or polylactic acid.
It is highly preferred that described polyester is polyethylene terephthalate, polybutylene terephthalate (PBT) or poly-carbonic acid
Ester.
Preferably, the intrinsic viscosity of described polyester is between 0.60dl/g-1.2dl/g.
Preferably, the chemical formula of described amido end capped polyether is as follows:
Wherein, R is the alkyl of C1-C10；M, n are positive integer.
Preferably, the structural formula of described amido end capped polyether is as follows:
In formula, x, y, z is positive integer, and n is nonnegative integer, and R1, R2, R3, R4 are independently selected from hydrogen atom and C1-
The alkyl of C10.
Preferably, the structural formula of described amido end capped polyether is as follows:
In formula, a, b, c are nonnegative integer and a+b+c is positive integer, R5, R6, R7, R8 be independently selected from hydrogen atom with
And the alkyl of C1-C10.
Preferably, described amido end capped polyether has a terminal groups of following structure:
Preferably, the structure of described amido end capped polyether is:
Preferably, the 0.5-5% that content is polyester quality of described amido end capped polyether.
Present invention also offers the preparation method of polyester fiber, it is characterised in that including:
Step 1: under inert gas, imports to polyester the main feed mouth of screw extruder, is led by amido end capped polyether
Enter the side charging aperture to screw extruder, in screw extruder, polyester and amido end capped polyether are mixed；
Step 2: the mixture obtained is input to spinning-drawing machine raw material cavity, at a certain temperature, after spinneret is extruded
Form the collection of filaments, obtain polyester fiber.
Preferably, described uniform temperature is above 20-60 DEG C of the melt temperature of polyester.
Amido end capped polyether in the present invention be a class main chain be polyethers, terminal groups is the compound of amido.Amido blocks
Polyethers is typically to pass through Polyethylene Glycol, polypropylene glycol or ethylene glycol/propylene glycol copolymers with structure regulator in High Temperature High Pressure
Lower ammonification obtains.Amido end capped polyether in the present invention does not contains hydroxyl, in addition to the structure of amido end capped polyether also
Being not particularly limited, amido end capped polyether both can be single functionality amido end capped polyether, can also be bifunctionality amido envelope
Hold polyethers, can also be three-functionality-degree amido end capped polyether.Its molecular weight is also not particularly limited.In view of suitably to reduce
The activity of amido, it is to avoid itself and pet reaction, the amido end capped polyether of the present invention preferably has a following amine end:
In view of interaction force and the amino-terminated polyethers of volatility, preferably simple function group with polyester, the most preferentially divide
Son amount is that the simple function group amino-terminated polyethers chemical formula of 400-2000 is as follows:
Wherein, R is the alkyl of C1-C10；M, n are positive integer.
For three-functionality-degree amido end capped polyether and bifunctionality amido end capped polyether, its molecular weight preferably 200 to 5000.
Three-functionality-degree amido end capped polyether is optimized for further:
In formula, x, y, z is positive integer, and n is nonnegative integer, and R1, R2, R3, R4 are independently selected from hydrogen atom and C1-
The alkyl of C10.
Two degree of functionality amido end capped polyethers are more preferably:
In formula, a, b, c are nonnegative integer and a+b+c is positive integer, R5, R6, R7, R8 be independently selected from hydrogen atom with
And the alkyl of C1-C10.
The amido end capped polyether override of the present invention selects trimethylolpropane tris polypropylene glycol ether (amido end-blocking) (formula
V), in experimental result is tested, best results.Its structural formula is as follows:
In formula, n1、n2、n3For positive integer.
In the present invention, in polyester fiber, the content of amido end capped polyether is typically advisable with 0.1wt% to 10wt%, too low fibre
The spinning properties of dimension is the best, too high, affects the mechanical property of polyester fiber.Preferably 0.5-5wt%, more preferably 0.5-
3wt%, most preferably 0.5wt%-1.5wt%.
Compared with prior art, the invention has the beneficial effects as follows:
Before and after the polyester fiber of the present invention has monofilament polyester hot strength height, spinning, the change of resin properties viscosity number is little, fine
Dimension intensity is high, color and luster excellent, easily processing, the feature such as with low cost.The preparation method of polyester fiber of the present invention have technique simple,
The features such as spinning temperature is low and before and after spinning the change of resin properties viscosity number is little.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is expanded on further.Should be understood that these embodiments are merely to illustrate the present invention
Rather than restriction the scope of the present invention.In addition, it is to be understood that after having read the content that the present invention lectures, people in the art
The present invention can be made various changes or modifications by member, and these equivalent form of values fall within the application appended claims equally and limited
Scope.
Embodiment 1-11 and the used raw material of comparative example 1-2 be:
Polyester A:PET, Yizheng Fiber Optical plant, intrinsic viscosity 0.65
Polyester B:PET, Yizheng Fiber Optical plant, intrinsic viscosity 1.0；
Polyester C:PET, Yizheng Fiber Optical plant, intrinsic viscosity 1.2；
Polyester D:PBT, Yizheng Fiber Optical plant, intrinsic viscosity 1.3；
Polyester E:PC, goes out light IR2500, (MI=8g/10min, 300 DEG C/1.2kg)；
Polyester F:PEN Supreme Being people Teonex TN8065S；
Amido end capped polyether a: trimethylol propane three polypropylene glycol ether (amido end-blocking),T-
403amine, molecular weight is 430；
Amido end capped polyether b: amido end-blocking Polyethylene Glycol propylene glycol copolymers: (NH2CH(CH3)CH2-[OCH(CH3)
CH2]x-[OCH2CH2]y-[OCH2CH(CH3)]z-NH2, y ≈ 9, x+z=3.6, molecular weight is about 600,
ED600)；
Amido end capped polyether c: amido terminated polypropylene glycol,D-2000, molecular weight is 2000；
Amido end capped polyether d: monoamine base end-blocking Polyethylene Glycol propylene glycol copolymersM-1000, molecule
Amount is 489.
Equipment and instrument: high-speed crush mixing machine, double screw extruder, melt spinning machine, cupping machine.
Intrinsic viscosity in the present invention is pressed the method for document (" synthetic technology and application " 01 phase in 2012, p48-50) and is surveyed
Amount.
Fibre strength in the present invention is pressed GB/T14344-2008 and is measured.
Embodiment 1
A kind of polyester fiber, comprises polyester A and amido end capped polyether a, and wherein, the content of amido end capped polyether a is polyester A
The 0.2% of quality, its preparation method is:
At inert gas (N2Under), polyester A imports the main feed mouth of screw extruder with the speed of 1kg/h, is sealed by amido
End polyethers a imports to the side charging aperture of screw extruder with the speed of 2g/h, polyester A and amido is blocked in screw extruder
Polyethers a mixes.The mixture obtained is input to spinning-drawing machine raw material cavity, makes melt extrude through spinneret at 290 DEG C
The rear formation collection of filaments, obtains smooth precursor.Drawn records monofilament tensile strength 5.8cN/dtex, intrinsic viscosity
0.66dl/g。
Embodiment 2
A kind of polyester fiber, comprises polyester B and amido end capped polyether a, and wherein, the content of amido end capped polyether a is polyester B
The 0.5% of quality, its preparation method is:
At inert gas (N2Under), polyester B imports the main feed mouth of screw extruder with the speed of 1kg/h, and amido blocks
Polyethers a imports to the side charging aperture of screw extruder with the speed of 5g/h, blocks poly-by polyester B and amido in screw extruder
Ether a mixes.The mixture obtained is input to spinning-drawing machine raw material cavity, makes melt at 295 DEG C after spinneret is extruded
Form the collection of filaments, obtain smooth precursor.Drawn records monofilament tensile strength 7.1cN/dtex, intrinsic viscosity 0.98dl/
g。
Embodiment 3
A kind of polyester fiber, comprises polyester C and amido end capped polyether a, and wherein, the content of amido end capped polyether a is polyester C
The 1% of quality, its preparation method is:
At inert gas (N2Under), polyester C imports the main feed mouth of screw extruder with the speed of 1kg/h, and amido blocks
Polyethers a imports to the side charging aperture of screw extruder with the speed of 10g/h, polyester C and amido is blocked in screw extruder
Polyethers a mixes.The mixture obtained is input to spinning-drawing machine raw material cavity, makes melt extrude through spinneret at 295 DEG C
The rear formation collection of filaments, obtains smooth precursor.Drawn records monofilament tensile strength 7.4cN/dtex, intrinsic viscosity
1.11dl/g。
Embodiment 4
A kind of polyester fiber, comprises polyester D and amido end capped polyether a, and wherein, the content of amido end capped polyether a is polyester D
The 1.5% of quality, its preparation method is:
At inert gas (N2Under), polyester D imports the main feed mouth of screw extruder with the speed of 1kg/h, and amido blocks
Polyethers a imports to the side charging aperture of screw extruder with the speed of 15g/h, blocks poly-by polyester and amido in screw extruder
Ether a mixes.The mixture obtained is input to spinning-drawing machine raw material cavity, makes melt at 290 DEG C after spinneret is extruded
Form the collection of filaments, obtain smooth precursor.Drawn records monofilament tensile strength 6.4cN/dtex, intrinsic viscosity 1.25dl/
g。
Embodiment 5
A kind of polyester fiber, comprises polyester E and amido end capped polyether a, and wherein, the content of amido end capped polyether a is polyester E
The 7% of quality, its preparation method is:
At inert gas (N2Under), polyester E imports the main feed mouth of screw extruder with the speed of 1kg/h, and amido blocks
Polyethers a imports to the side charging aperture of screw extruder with the speed of 70g/h, blocks poly-by polyester and amido in screw extruder
Ether a mixes.The mixture obtained is input to spinning-drawing machine raw material cavity, makes melt at 305 DEG C after spinneret is extruded
Form the collection of filaments, obtain smooth precursor.Drawn records monofilament tensile strength 3.7cN/dtex.
Embodiment 6
A kind of polyester fiber, comprises polyester F and amido end capped polyether b, and wherein, the content of amido end capped polyether b is polyester F
The 1% of quality, its preparation method is:
At inert gas (N2Under), polyester F imports the main feed mouth of screw extruder with the speed of 1kg/h, and amido blocks
Polyethers b imports to the side charging aperture of screw extruder with the speed of 10g/h, blocks poly-by polyester and amido in screw extruder
Ether b mixes.The mixture obtained is input to spinning-drawing machine raw material cavity, makes melt at 300 DEG C after spinneret is extruded
Form the collection of filaments, obtain translucent, smooth precursor.Drawn records monofilament tensile strength 5.7cN/dtex.
Embodiment 7
A kind of polyester fiber, comprises polyester B and amido end capped polyether a, and wherein, the content of amido end capped polyether a is polyester B
The 1% of quality, its preparation method is:
At inert gas (N2Under), polyester B importing with the speed of 1kg/h the main feed mouth of screw extruder, amido seals
End polyethers a imports to the side charging aperture of screw extruder with the speed of 10g/h, by amido end capped polyether a in screw extruder
Mix.The mixture obtained is input to spinning-drawing machine raw material cavity, and temperature adds to 295 DEG C, makes high-fluidity polyester melt warp
Form the collection of filaments after spinneret extrusion, obtain translucent, smooth precursor.Drawn records monofilament tensile strength 6.2cN/
dtex。
Embodiment 8
A kind of polyester fiber, comprises polyester B and amido end capped polyether b, and wherein, the content of amido end capped polyether b is polyester B
The 1% of quality, its preparation method is:
At inert gas (N2Under), polyester B imports the main feed mouth of screw extruder with the speed of 1kg/h, and amido blocks
Polyethers b imports to the side charging aperture of screw extruder with the speed of 10g/h, blocks poly-by polyester and amido in screw extruder
Ether b mixes.The mixture obtained is input to spinning-drawing machine raw material cavity, makes melt at 295 DEG C after spinneret is extruded
Form the collection of filaments, obtain smooth precursor.Drawn records monofilament tensile strength 7.2cN/dtex.
Embodiment 9
A kind of polyester fiber, comprises polyester B and amido end capped polyether c, and wherein, the content of amido end capped polyether c is polyester B
The 1% of quality, its preparation method is:
At inert gas (N2Under), polyester B imports the main feed mouth of screw extruder with the speed of 1kg/h, and amido blocks
Polyethers c imports to the side charging aperture of screw extruder with the speed of 10g/h, blocks poly-by polyester and amido in screw extruder
Ether c mixes.The mixture obtained is input to spinning-drawing machine raw material cavity, makes melt at 295 DEG C after spinneret is extruded
Form the collection of filaments, obtain smooth precursor.Drawn records monofilament tensile strength 7.3cN/dtex.
Embodiment 10
A kind of polyester fiber, comprises polyester B and amido end capped polyether d, and wherein, the content of amido end capped polyether d is polyester B
The 1% of quality, its preparation method is:
At inert gas (N2Under), polyester B imports the main feed mouth of screw extruder with the speed of 1kg/h, and amido blocks
Polyethers d imports to the side charging aperture of screw extruder with the speed of 10g/h, polyester B and amido is blocked in screw extruder
Polyethers d mixes.The mixture obtained is input to spinning-drawing machine raw material cavity, makes melt extrude through spinneret at 295 DEG C
The rear formation collection of filaments, obtains smooth precursor.Drawn records monofilament tensile strength 7.1cN/dtex.
Comparative example 1
At inert gas (N2Under), polyester B with the speed of 1kg/h import screw extruder and at 295 DEG C melt spinning,
Obtain filament surfaces coarse.Drawn records monofilament tensile strength 5.3cN/dtex, intrinsic viscosity 0.69.
Each embodiment and the fibre strength of comparative example and intrinsic viscosity see table:
Claims (10)
1. a polyester fiber, it is characterised in that comprise polyester and amido end capped polyether, wherein, the content of amido end capped polyether
0.1-10% for polyester quality.
2. polyester fiber as claimed in claim 1, it is characterised in that described polyester be polyethylene terephthalate,
Polybutylene terephthalate (PBT), PEN, PBN, poly terephthalic acid propylene glycol
Ester, polycyclohexylene's diformazan alcohol ester, Merlon or polylactic acid.
3. polyester fiber as claimed in claim 2, it is characterised in that described polyester is polyethylene terephthalate, poly-
Mutual-phenenyl two acid bromide two alcohol ester or Merlon.
4. polyester fiber as claimed in claim 1, it is characterised in that the intrinsic viscosity of described polyester is at 0.60dl/g-
Between 1.2dl/g.
5. polyester fiber as claimed in claim 1, it is characterised in that the chemical formula of described amido end capped polyether is as follows:
Wherein, R is the alkyl of C1-C10；M, n are positive integer.
6. polyester fiber as claimed in claim 1, it is characterised in that the structural formula of described amido end capped polyether is as follows:
In formula, x, y, z is positive integer, and n is nonnegative integer, and R1, R2, R3, R4 are independently selected from hydrogen atom and C1-C10
Alkyl.
7. polyester fiber as claimed in claim 1, it is characterised in that the structural formula of described amido end capped polyether is as follows:
In formula, a, b, c are nonnegative integer and a+b+c is positive integer, R5, R6, R7, R8 be independently selected from hydrogen atom and
The alkyl of C1-C10.
8. polyester fiber as claimed in claim 1, it is characterised in that described amido end capped polyether has the end of following structure
End group:
9. polyester fiber as claimed in claim 1, it is characterised in that the structure of described amido end capped polyether is:
In formula, n1、n2、n3For positive integer.
10. the preparation method of the polyester fiber according to any one of claim 1-9, it is characterised in that including:
Step 1: under inert gas, imports to polyester the main feed mouth of screw extruder, is imported to by amido end capped polyether
The side charging aperture of screw extruder, mixes polyester and amido end capped polyether in screw extruder；
Step 2: the mixture obtained is input to spinning-drawing machine raw material cavity, at a certain temperature, is formed after spinneret is extruded
The collection of filaments, obtains polyester fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610318787.5A CN105821512A (en) | 2016-05-13 | 2016-05-13 | Polyester fiber and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610318787.5A CN105821512A (en) | 2016-05-13 | 2016-05-13 | Polyester fiber and preparation method thereof |
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Family
ID=56530718
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101903469A (en) * | 2007-12-18 | 2010-12-01 | 巴斯夫欧洲公司 | Thermoplastic polyamides having polyether amines |
| CN101955578A (en) * | 2009-07-15 | 2011-01-26 | 东丽纤维研究所（中国）有限公司 | Polyester, production method thereof and application thereof |
| CN105273371A (en) * | 2015-11-05 | 2016-01-27 | 东华大学 | Thermoplastic polyester composition and preparation method thereof |
| CN105400187A (en) * | 2015-11-05 | 2016-03-16 | 东华大学 | High-fluidity polyamide composition and preparation method thereof |
-
2016
- 2016-05-13 CN CN201610318787.5A patent/CN105821512A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101903469A (en) * | 2007-12-18 | 2010-12-01 | 巴斯夫欧洲公司 | Thermoplastic polyamides having polyether amines |
| CN101955578A (en) * | 2009-07-15 | 2011-01-26 | 东丽纤维研究所（中国）有限公司 | Polyester, production method thereof and application thereof |
| CN105273371A (en) * | 2015-11-05 | 2016-01-27 | 东华大学 | Thermoplastic polyester composition and preparation method thereof |
| CN105400187A (en) * | 2015-11-05 | 2016-03-16 | 东华大学 | High-fluidity polyamide composition and preparation method thereof |
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Application publication date: 20160803 |