CN114134592A - Flame-retardant polyester yarn and preparation method thereof - Google Patents
Flame-retardant polyester yarn and preparation method thereof Download PDFInfo
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- CN114134592A CN114134592A CN202111550984.7A CN202111550984A CN114134592A CN 114134592 A CN114134592 A CN 114134592A CN 202111550984 A CN202111550984 A CN 202111550984A CN 114134592 A CN114134592 A CN 114134592A
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- ammonium salt
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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
- 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
- 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
- D01F1/07—Addition of substances to the spinning solution or to the melt for making fire- or flame-proof filaments
-
- 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
- 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
- D01F1/103—Agents inhibiting growth of microorganisms
Abstract
The invention discloses a flame-retardant polyester yarn and a preparation method thereof, wherein the flame-retardant polyester yarn is prepared from the following raw materials in parts by weight: 60-70 parts of polyethylene terephthalate, 15-20 parts of polybenzimidazole, 8-11 parts of a styrene-butadiene block copolymer, 6-8 parts of an ethylene-methyl methacrylate copolymer, 3.5-4.5 parts of phenoxycyclophosphazene, 2-3 parts of magnesium sulfate, 4-5.5 parts of titanium dioxide, 1.6-2.2 parts of zinc oxide and 2.5-3.5 parts of a quaternary amine salt organic antibacterial agent. The flame-retardant polyester yarn disclosed by the invention is prepared by selecting raw materials, optimizing the content of each raw material, fully playing respective advantages, complementing each other and promoting each other, and the prepared flame-retardant polyester yarn has excellent flame-retardant property and antibacterial property, excellent mechanical property and good comprehensive property.
Description
Technical Field
The invention relates to the technical field of polyester yarns, in particular to a flame-retardant polyester yarn and a preparation method thereof.
Background
Polyester fibers, commonly known as "dacron". The PET fiber is a synthetic fiber obtained by spinning polyester formed by polycondensation of organic dibasic acid and dihydric alcohol, is called PET fiber for short, and belongs to a high molecular compound. Invented in 1941, is the first major variety of current synthetic fibers. The polyester fiber has the advantages of good crease resistance and shape retention, high strength and elastic recovery capability. It is firm and durable, has the functions of resisting wrinkle, preventing ironing and preventing hair from sticking.
The flame-retardant polyester has the advantages of high strength, high wear resistance and the like, but as a thermoplastic polymer, a matrix can be softened, melted and cracked when heated, and the phenomenon of melting and dripping can occur in the combustion process, which can bring more serious consequences, such as: drop of the molten drops can cause flame spread and cause fire; once the molten drops contact with the skin of a human body, secondary injuries such as scalds and burns can be caused. Therefore, flame retardant polyester is only widely used for decorative fabrics such as aircraft, automotive interior fabrics, etc.
However, the currently used polyester yarn has the following problems:
1. the flame retardant property is poor, and the use requirements of some use occasions with high flame retardant requirements cannot be met;
2. the comprehensive performance of the modified terylene is reduced, and the good flame retardant performance, antibacterial performance (especially escherichia coli, pneumonia bacillus and the like) and mechanical performance can not be well considered.
Disclosure of Invention
Based on the situation, the invention aims to provide the flame-retardant polyester yarn and the preparation method thereof, which can effectively solve the problems. The flame-retardant polyester yarn is prepared by selecting raw materials, optimizing the content of each raw material, selecting polyethylene glycol terephthalate, polybenzimidazole, styrene-butadiene block copolymer, ethylene-methyl methacrylate copolymer, phenoxyl cyclophosphazene, magnesium sulfate, titanium dioxide, zinc oxide, quaternary ammonium salt organic antibacterial agent and the like according to a proper proportion, fully playing respective advantages, complementing and promoting each other, and the prepared flame-retardant polyester yarn has excellent flame-retardant property and antibacterial property, excellent mechanical property and good comprehensive performance.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the flame-retardant polyester yarn is prepared from the following raw materials in parts by weight:
60-70 parts of polyethylene terephthalate,
15-20 parts of polybenzimidazole,
8 to 11 parts of styrene-butadiene block copolymer,
6-8 parts of ethylene-methyl methacrylate copolymer,
3.5 to 4.5 parts of phenoxy cyclophosphazene,
2-3 parts of magnesium sulfate,
4-5.5 parts of titanium dioxide,
1.6 to 2.2 parts of zinc oxide,
2.5-3.5 parts of quaternary ammonium salt organic antibacterial agent.
The flame-retardant polyester yarn is prepared by selecting raw materials, optimizing the content of each raw material, selecting polyethylene glycol terephthalate, polybenzimidazole, styrene-butadiene block copolymer, ethylene-methyl methacrylate copolymer, phenoxyl cyclophosphazene, magnesium sulfate, titanium dioxide, zinc oxide, quaternary ammonium salt organic antibacterial agent and the like according to a proper proportion, fully playing respective advantages, complementing and promoting each other, and the prepared flame-retardant polyester yarn has excellent flame-retardant property and antibacterial property, excellent mechanical property and good comprehensive performance.
Preferably, the flame-retardant polyester yarn is prepared from the following raw materials in parts by weight:
65 portions of polyethylene glycol terephthalate,
17.5 parts of polybenzimidazole,
9.5 parts of styrene-butadiene block copolymer,
7 parts of ethylene-methyl methacrylate copolymer,
4 parts of phenoxy cyclophosphazene,
2.5 parts of magnesium sulfate,
4.8 parts of titanium dioxide,
1.9 parts of zinc oxide,
3 parts of quaternary ammonium salt organic antibacterial agent.
Preferably, the titanium dioxide is nano titanium dioxide.
Preferably, the zinc oxide is nano zinc oxide.
Preferably, the quaternary ammonium salt organic antibacterial agent is a mixture of alkylphenol polyoxyethylene quaternary ammonium salt and hydroxypropyl quaternary ammonium salt.
Preferably, the mass ratio of the alkylphenol polyoxyethylene quaternary ammonium salt to the hydroxypropyl quaternary ammonium salt in the mixture of the alkylphenol polyoxyethylene quaternary ammonium salt and the hydroxypropyl quaternary ammonium salt is 1: (0.2-0.4).
Preferably, the flame-retardant polyester yarn further comprises 2-3.5 parts of an antioxidant.
Preferably, the oxidant is the antioxidant SK-1076.
Meanwhile, the invention also provides a preparation method of the flame-retardant polyester yarn, which comprises the following steps:
A. weighing polyethylene glycol terephthalate, polybenzimidazole, a styrene-butadiene block copolymer, an ethylene-methyl methacrylate copolymer, phenoxyl cyclophosphazene, magnesium sulfate, titanium dioxide, zinc oxide, a quaternary ammonium salt organic antibacterial agent and an antioxidant according to parts by weight, and respectively drying the polyethylene glycol terephthalate, the polybenzimidazole, the styrene-butadiene block copolymer and the ethylene-methyl methacrylate copolymer; then uniformly mixing the dried polyethylene terephthalate, polybenzimidazole, styrene-butadiene block copolymer and ethylene-methyl methacrylate copolymer with the rest raw materials (phenoxy cyclophosphazene, magnesium sulfate, titanium dioxide, zinc oxide, quaternary ammonium salt organic antibacterial agent and antioxidant);
B. feeding the mixed raw materials into a double-screw extruder to be melted into a composite melt;
C. and the composite melt enters a spinning machine, is sprayed out from a spinneret plate to form a strand silk, and is subjected to air blowing cooling, oiling, stretching and winding to obtain the flame-retardant polyester silk.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the flame-retardant polyester yarn is prepared by selecting raw materials, optimizing the content of each raw material, selecting polyethylene glycol terephthalate, polybenzimidazole, a styrene-butadiene block copolymer and an ethylene-methyl methacrylate copolymer in a proper proportion (in the raw material system of the flame-retardant polyester yarn, the styrene-butadiene block copolymer and the ethylene-methyl methacrylate copolymer have good synergistic compatibility and toughening effects and ensure good compatibility and uniform dispersion of each raw material), and the phenoxy cyclophosphazene, magnesium sulfate, titanium dioxide, zinc oxide, quaternary ammonium salt organic antibacterial agents and the like.
The preparation method has simple process and simple and convenient operation, and saves manpower and equipment cost.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in connection with specific examples, which should not be construed as limiting the present patent.
The test methods or test methods described in the following examples are conventional methods unless otherwise specified; the reagents and materials, unless otherwise indicated, are conventionally obtained commercially or prepared by conventional methods.
Example 1:
the flame-retardant polyester yarn is prepared from the following raw materials in parts by weight:
60-70 parts of polyethylene terephthalate,
15-20 parts of polybenzimidazole,
8 to 11 parts of styrene-butadiene block copolymer,
6-8 parts of ethylene-methyl methacrylate copolymer,
3.5 to 4.5 parts of phenoxy cyclophosphazene,
2-3 parts of magnesium sulfate,
4-5.5 parts of titanium dioxide,
1.6 to 2.2 parts of zinc oxide,
2.5-3.5 parts of quaternary ammonium salt organic antibacterial agent.
In this embodiment, the flame-retardant polyester yarn is preferably prepared from the following raw materials in parts by weight:
65 portions of polyethylene glycol terephthalate,
17.5 parts of polybenzimidazole,
9.5 parts of styrene-butadiene block copolymer,
7 parts of ethylene-methyl methacrylate copolymer,
4 parts of phenoxy cyclophosphazene,
2.5 parts of magnesium sulfate,
4.8 parts of titanium dioxide,
1.9 parts of zinc oxide,
3 parts of quaternary ammonium salt organic antibacterial agent.
In this embodiment, the titanium dioxide is preferably nano titanium dioxide.
In this embodiment, the zinc oxide is preferably nano zinc oxide.
In this embodiment, the quaternary ammonium salt-based organic antibacterial agent is preferably a mixture of alkylphenol polyoxyethylene-based quaternary ammonium salt and hydroxypropyl quaternary ammonium salt.
In this embodiment, the mass ratio of the alkylphenol polyoxyethylene-based quaternary ammonium salt and the hydroxypropyl quaternary ammonium salt in the mixture of the alkylphenol polyoxyethylene-based quaternary ammonium salt and the hydroxypropyl quaternary ammonium salt is preferably 1: (0.2-0.4).
In the embodiment, the flame-retardant polyester yarn preferably further comprises 2-3.5 parts of an antioxidant.
In the present embodiment, the oxidant is preferably the antioxidant SK-1076.
The embodiment also provides a preparation method of the flame-retardant polyester yarn, which comprises the following steps:
A. weighing polyethylene glycol terephthalate, polybenzimidazole, a styrene-butadiene block copolymer, an ethylene-methyl methacrylate copolymer, phenoxyl cyclophosphazene, magnesium sulfate, titanium dioxide, zinc oxide, a quaternary ammonium salt organic antibacterial agent and an antioxidant according to parts by weight, and respectively drying the polyethylene glycol terephthalate, the polybenzimidazole, the styrene-butadiene block copolymer and the ethylene-methyl methacrylate copolymer; then uniformly mixing the dried polyethylene terephthalate, polybenzimidazole, styrene-butadiene block copolymer and ethylene-methyl methacrylate copolymer with the rest raw materials;
B. feeding the mixed raw materials into a double-screw extruder to be melted into a composite melt;
C. and the composite melt enters a spinning machine, is sprayed out from a spinneret plate to form a strand silk, and is subjected to air blowing cooling, oiling, stretching and winding to obtain the flame-retardant polyester silk.
Example 2:
the flame-retardant polyester yarn is prepared from the following raw materials in parts by weight:
60 parts of polyethylene glycol terephthalate,
15 parts of polybenzimidazole,
8 parts of styrene-butadiene block copolymer,
6 parts of ethylene-methyl methacrylate copolymer,
3.5 parts of phenoxy cyclophosphazene,
2 parts of magnesium sulfate,
4 portions of titanium dioxide,
1.6 parts of zinc oxide,
2.5 portions of quaternary ammonium salt organic antibacterial agent,
And 2 parts of an antioxidant.
In this embodiment, the titanium dioxide is nano titanium dioxide.
In this embodiment, the zinc oxide is nano zinc oxide.
In this embodiment, the quaternary ammonium salt organic antibacterial agent is a mixture of alkylphenol polyoxyethylene quaternary ammonium salt and hydroxypropyl quaternary ammonium salt.
In this embodiment, the mass ratio of the alkylphenol polyoxyethylene-based quaternary ammonium salt to the hydroxypropyl quaternary ammonium salt in the mixture of the alkylphenol polyoxyethylene-based quaternary ammonium salt and the hydroxypropyl quaternary ammonium salt is 1: 0.2.
in this example, the oxidant is the antioxidant SK-1076.
In this embodiment, the preparation method of the flame-retardant resistant polyester yarn includes the following steps:
A. weighing polyethylene glycol terephthalate, polybenzimidazole, a styrene-butadiene block copolymer, an ethylene-methyl methacrylate copolymer, phenoxyl cyclophosphazene, magnesium sulfate, titanium dioxide, zinc oxide, a quaternary ammonium salt organic antibacterial agent and an antioxidant according to parts by weight, and respectively drying the polyethylene glycol terephthalate, the polybenzimidazole, the styrene-butadiene block copolymer and the ethylene-methyl methacrylate copolymer; then uniformly mixing the dried polyethylene terephthalate, polybenzimidazole, styrene-butadiene block copolymer and ethylene-methyl methacrylate copolymer with the rest raw materials;
B. feeding the mixed raw materials into a double-screw extruder to be melted into a composite melt;
C. and the composite melt enters a spinning machine, is sprayed out from a spinneret plate to form a strand silk, and is subjected to air blowing cooling, oiling, stretching and winding to obtain the flame-retardant polyester silk.
Example 3:
the flame-retardant polyester yarn is prepared from the following raw materials in parts by weight:
70 portions of polyethylene glycol terephthalate,
20 parts of polybenzimidazole,
11 parts of styrene-butadiene block copolymer,
8 parts of ethylene-methyl methacrylate copolymer,
4.5 parts of phenoxy cyclophosphazene,
3 parts of magnesium sulfate,
5.5 parts of titanium dioxide,
2.2 parts of zinc oxide,
3.5 portions of quaternary ammonium salt organic antibacterial agent,
And 3.5 parts of an antioxidant.
In this embodiment, the titanium dioxide is nano titanium dioxide.
In this embodiment, the zinc oxide is nano zinc oxide.
In this embodiment, the quaternary ammonium salt organic antibacterial agent is a mixture of alkylphenol polyoxyethylene quaternary ammonium salt and hydroxypropyl quaternary ammonium salt.
In this embodiment, the mass ratio of the alkylphenol polyoxyethylene-based quaternary ammonium salt to the hydroxypropyl quaternary ammonium salt in the mixture of the alkylphenol polyoxyethylene-based quaternary ammonium salt and the hydroxypropyl quaternary ammonium salt is 1: 0.4.
in this example, the oxidant is the antioxidant SK-1076.
In this embodiment, the preparation method of the flame-retardant resistant polyester yarn includes the following steps:
A. weighing polyethylene glycol terephthalate, polybenzimidazole, a styrene-butadiene block copolymer, an ethylene-methyl methacrylate copolymer, phenoxyl cyclophosphazene, magnesium sulfate, titanium dioxide, zinc oxide, a quaternary ammonium salt organic antibacterial agent and an antioxidant according to parts by weight, and respectively drying the polyethylene glycol terephthalate, the polybenzimidazole, the styrene-butadiene block copolymer and the ethylene-methyl methacrylate copolymer; then uniformly mixing the dried polyethylene terephthalate, polybenzimidazole, styrene-butadiene block copolymer and ethylene-methyl methacrylate copolymer with the rest raw materials;
B. feeding the mixed raw materials into a double-screw extruder to be melted into a composite melt;
C. and the composite melt enters a spinning machine, is sprayed out from a spinneret plate to form a strand silk, and is subjected to air blowing cooling, oiling, stretching and winding to obtain the flame-retardant polyester silk.
Example 4:
the flame-retardant polyester yarn is prepared from the following raw materials in parts by weight:
65 portions of polyethylene glycol terephthalate,
17.5 parts of polybenzimidazole,
9.5 parts of styrene-butadiene block copolymer,
7 parts of ethylene-methyl methacrylate copolymer,
4 parts of phenoxy cyclophosphazene,
2.5 parts of magnesium sulfate,
4.8 parts of titanium dioxide,
1.9 parts of zinc oxide,
3 portions of quaternary ammonium salt organic antibacterial agent,
And 2.7 parts of an antioxidant.
In this embodiment, the titanium dioxide is nano titanium dioxide.
In this embodiment, the zinc oxide is nano zinc oxide.
In this embodiment, the quaternary ammonium salt organic antibacterial agent is a mixture of alkylphenol polyoxyethylene quaternary ammonium salt and hydroxypropyl quaternary ammonium salt.
In this embodiment, the mass ratio of the alkylphenol polyoxyethylene-based quaternary ammonium salt to the hydroxypropyl quaternary ammonium salt in the mixture of the alkylphenol polyoxyethylene-based quaternary ammonium salt and the hydroxypropyl quaternary ammonium salt is 1: 0.3.
in this example, the oxidant is the antioxidant SK-1076.
In this embodiment, the preparation method of the flame-retardant resistant polyester yarn includes the following steps:
A. weighing polyethylene glycol terephthalate, polybenzimidazole, a styrene-butadiene block copolymer, an ethylene-methyl methacrylate copolymer, phenoxyl cyclophosphazene, magnesium sulfate, titanium dioxide, zinc oxide, a quaternary ammonium salt organic antibacterial agent and an antioxidant according to parts by weight, and respectively drying the polyethylene glycol terephthalate, the polybenzimidazole, the styrene-butadiene block copolymer and the ethylene-methyl methacrylate copolymer; then uniformly mixing the dried polyethylene terephthalate, polybenzimidazole, styrene-butadiene block copolymer and ethylene-methyl methacrylate copolymer with the rest raw materials;
B. feeding the mixed raw materials into a double-screw extruder to be melted into a composite melt;
C. and the composite melt enters a spinning machine, is sprayed out from a spinneret plate to form a strand silk, and is subjected to air blowing cooling, oiling, stretching and winding to obtain the flame-retardant polyester silk.
Comparative example 1:
the difference from example 4 is that no polybenzimidazole is present, and the other is the same as example 4.
Comparative example 2:
the difference from example 4 is that no phenoxycyclophosphazene is present, and the rest is the same as example 4.
Comparative example 3:
the difference from example 4 is that magnesium sulfate is not present, and the other is the same as example 4.
Comparative example 4:
the difference from example 4 is that no titanium dioxide is present, and the other is the same as example 4.
Comparative example 5:
the difference from example 4 is that zinc oxide is not present, and the other is the same as example 4.
Comparative example 6:
the difference from the example 4 is that the quaternary ammonium salt organic antibacterial agent is not contained, and the other steps are the same as the example 4.
Comparative example 7:
the difference from the example 4 is that the quaternary ammonium salt organic antibacterial agent is only alkylphenol polyoxyethylene quaternary ammonium salt, and hydroxypropyl quaternary ammonium salt is not provided, and the other steps are the same as the example 4.
The polyester yarns obtained in examples 2 to 4 of the present invention and comparative examples 1 to 7 were subjected to the performance test, and the test results are shown in table 1.
Wherein, the Limit Oxygen Index (LOI) refers to GB/T2406-1980, a supporting frame of 1cm multiplied by 10cm is woven by a steel wire mesh, 0.2g of polyester yarns are uniformly and continuously filled in the supporting frame, the limit oxygen index of a sample is measured by adopting a JF-3 type oxygen index tester, and the average value is taken after 10 times of measurement.
TABLE 1
As can be seen from the table above, the flame-retardant polyester yarn provided by the invention has excellent flame retardant property and antibacterial property, and excellent mechanical property.
In addition, the addition of the styrene-butadiene block copolymer and the ethylene-methyl methacrylate copolymer can cause the breaking strength of the flame-retardant polyester yarn to be reduced by 0.3-0.6 CN/dtex.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (9)
1. The flame-retardant polyester yarn is characterized by being prepared from the following raw materials in parts by weight:
60-70 parts of polyethylene terephthalate,
15-20 parts of polybenzimidazole,
8 to 11 parts of styrene-butadiene block copolymer,
6-8 parts of ethylene-methyl methacrylate copolymer,
3.5 to 4.5 parts of phenoxy cyclophosphazene,
2-3 parts of magnesium sulfate,
4-5.5 parts of titanium dioxide,
1.6 to 2.2 parts of zinc oxide,
2.5-3.5 parts of quaternary ammonium salt organic antibacterial agent.
2. The flame-resistant polyester yarn as claimed in claim 1, wherein the flame-resistant polyester yarn is prepared from the following raw materials in parts by weight:
65 portions of polyethylene glycol terephthalate,
17.5 parts of polybenzimidazole,
9.5 parts of styrene-butadiene block copolymer,
7 parts of ethylene-methyl methacrylate copolymer,
4 parts of phenoxy cyclophosphazene,
2.5 parts of magnesium sulfate,
4.8 parts of titanium dioxide,
1.9 parts of zinc oxide,
3 parts of quaternary ammonium salt organic antibacterial agent.
3. The flame resistant polyester yarn of claim 1, wherein the titanium dioxide is nano titanium dioxide.
4. The flame-resistant polyester yarn of claim 1, wherein the zinc oxide is nano zinc oxide.
5. The flame-resistant polyester yarn as claimed in claim 1, wherein the quaternary ammonium salt organic antibacterial agent is a mixture of alkylphenol polyoxyethylene quaternary ammonium salt and hydroxypropyl quaternary ammonium salt.
6. The flame-retardant polyester yarn as claimed in claim 5, wherein the mass ratio of the alkylphenol polyoxyethylene-based quaternary ammonium salt to the hydroxypropyl quaternary ammonium salt in the mixture of the alkylphenol polyoxyethylene-based quaternary ammonium salt and the hydroxypropyl quaternary ammonium salt is 1: (0.2-0.4).
7. The flame-retardant polyester yarn as claimed in claim 1, further comprising 2-3.5 parts of an antioxidant.
8. The flame resistant polyester yarn of claim 7, wherein the oxidant is SK-1076.
9. The method for preparing the flame-resistant polyester yarn as claimed in claim 7 or 8, wherein the method comprises the following steps:
A. weighing polyethylene glycol terephthalate, polybenzimidazole, a styrene-butadiene block copolymer, an ethylene-methyl methacrylate copolymer, phenoxyl cyclophosphazene, magnesium sulfate, titanium dioxide, zinc oxide, a quaternary ammonium salt organic antibacterial agent and an antioxidant according to parts by weight, and respectively drying the polyethylene glycol terephthalate, the polybenzimidazole, the styrene-butadiene block copolymer and the ethylene-methyl methacrylate copolymer; then uniformly mixing the dried polyethylene terephthalate, polybenzimidazole, styrene-butadiene block copolymer and ethylene-methyl methacrylate copolymer with the rest raw materials;
B. feeding the mixed raw materials into a double-screw extruder to be melted into a composite melt;
C. and the composite melt enters a spinning machine, is sprayed out from a spinneret plate to form a strand silk, and is subjected to air blowing cooling, oiling, stretching and winding to obtain the flame-retardant polyester silk.
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Cited By (1)
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| CN115748030A (en) * | 2022-10-21 | 2023-03-07 | 石狮市益明染织有限公司 | Terylene linen-like yarn and preparation method thereof |
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