CN112695403A - Antistatic polyamide elastomer spinning and processing method thereof - Google Patents
Antistatic polyamide elastomer spinning and processing method thereof Download PDFInfo
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- CN112695403A CN112695403A CN202011460667.1A CN202011460667A CN112695403A CN 112695403 A CN112695403 A CN 112695403A CN 202011460667 A CN202011460667 A CN 202011460667A CN 112695403 A CN112695403 A CN 112695403A
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- polyamide elastomer
- spinning
- antistatic polyamide
- antistatic
- spun yarn
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- 239000004952 Polyamide Substances 0.000 title claims abstract description 169
- 229920002647 polyamide Polymers 0.000 title claims abstract description 169
- 229920001971 elastomer Polymers 0.000 title claims abstract description 147
- 239000000806 elastomer Substances 0.000 title claims abstract description 147
- 238000009987 spinning Methods 0.000 title claims abstract description 84
- 238000003672 processing method Methods 0.000 title claims abstract description 26
- 238000002844 melting Methods 0.000 claims abstract description 35
- 230000008018 melting Effects 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000003756 stirring Methods 0.000 claims description 44
- 238000006243 chemical reaction Methods 0.000 claims description 36
- 238000010438 heat treatment Methods 0.000 claims description 35
- 229920000642 polymer Polymers 0.000 claims description 31
- 238000006116 polymerization reaction Methods 0.000 claims description 23
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 22
- -1 ethoxy lauryl tyramine Chemical compound 0.000 claims description 20
- 239000003963 antioxidant agent Substances 0.000 claims description 19
- 230000003078 antioxidant effect Effects 0.000 claims description 18
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 claims description 18
- 239000002563 ionic surfactant Substances 0.000 claims description 15
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 claims description 14
- DZGWFCGJZKJUFP-UHFFFAOYSA-N Tyramine Natural products NCCC1=CC=C(O)C=C1 DZGWFCGJZKJUFP-UHFFFAOYSA-N 0.000 claims description 12
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 claims description 12
- 229920001451 polypropylene glycol Polymers 0.000 claims description 12
- 238000002360 preparation method Methods 0.000 claims description 12
- 229960003732 tyramine Drugs 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims description 11
- 238000005303 weighing Methods 0.000 claims description 11
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 10
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 10
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims description 10
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 9
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 9
- TVIDDXQYHWJXFK-UHFFFAOYSA-N dodecanedioic acid Chemical compound OC(=O)CCCCCCCCCCC(O)=O TVIDDXQYHWJXFK-UHFFFAOYSA-N 0.000 claims description 8
- 239000002202 Polyethylene glycol Substances 0.000 claims description 6
- MXXDSLLVYZMTFA-UHFFFAOYSA-N octadecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 MXXDSLLVYZMTFA-UHFFFAOYSA-N 0.000 claims description 6
- 229920001223 polyethylene glycol Polymers 0.000 claims description 6
- GUOSQNAUYHMCRU-UHFFFAOYSA-N 11-Aminoundecanoic acid Chemical compound NCCCCCCCCCCC(O)=O GUOSQNAUYHMCRU-UHFFFAOYSA-N 0.000 claims description 5
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 claims description 5
- 235000011037 adipic acid Nutrition 0.000 claims description 5
- 239000001361 adipic acid Substances 0.000 claims description 5
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 3
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 3
- DVEKCXOJTLDBFE-UHFFFAOYSA-N n-dodecyl-n,n-dimethylglycinate Chemical class CCCCCCCCCCCC[N+](C)(C)CC([O-])=O DVEKCXOJTLDBFE-UHFFFAOYSA-N 0.000 claims 1
- 239000004744 fabric Substances 0.000 abstract description 9
- 238000010521 absorption reaction Methods 0.000 abstract description 6
- 238000004383 yellowing Methods 0.000 abstract description 6
- 230000001965 increasing effect Effects 0.000 abstract description 5
- 208000012886 Vertigo Diseases 0.000 description 66
- 238000004804 winding Methods 0.000 description 19
- 239000000463 material Substances 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 9
- 238000001816 cooling Methods 0.000 description 9
- 239000000126 substance Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
- 239000012752 auxiliary agent Substances 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- 235000011157 hong shi Nutrition 0.000 description 2
- CPDAIPKBTBUVDV-UHFFFAOYSA-N 12-ethoxydodecan-1-amine Chemical compound CCOCCCCCCCCCCCCN CPDAIPKBTBUVDV-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- D01F6/78—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products
- D01F6/82—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products from polyester amides or polyether amides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/04—Preparatory processes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/40—Polyamides containing oxygen in the form of ether groups
-
- 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
- D01D5/08—Melt spinning methods
-
- 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
- D01D5/12—Stretch-spinning methods
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Polyamides (AREA)
- Artificial Filaments (AREA)
Abstract
The invention relates to antistatic polyamide elastomer spinning and a processing method thereof, wherein the processing method of the antistatic polyamide elastomer spinning comprises the following steps: s1, melting the antistatic polyamide elastomer, and spinning the melted antistatic polyamide elastomer to obtain a primary spun yarn; s2, drafting the primary spun yarn by 4-6 times to obtain the antistatic polyamide elastomer spun yarn. The technical scheme of the invention is that the antistatic polyamide elastomer is melted, the melted antistatic polyamide elastomer is spun, the obtained initial spinning is drafted by 4-6 times, the number of molecular chains bearing external tension on the spinning of the antistatic polyamide elastomer is increased based on the drafting of the initial spinning, the breaking strength is obviously improved, the spinning has better elasticity, the low temperature resistance is improved due to the drafting of the initial spinning, and the fabric spun by the antistatic polyamide elastomer has yellowing resistance, antistatic performance and better water absorption, and has light weight in unit area.
Description
Technical Field
The invention relates to the technical field of spinning, in particular to antistatic polyamide elastomer spinning and a processing method thereof.
Background
With the rapid development of the fabric market at home and abroad and the continuous improvement of the consumption demand of people, the traditional fabric can not meet the diversified demand of consumers, and more functional fabrics are favored by the consumers.
In the related technology, raw materials are spun, and then the fabric is prepared through a series of processing technologies, the variety of the adopted raw materials is various, wherein the antistatic polyamide elastomer is adopted for spinning, and the prepared spinning product has the advantages of weak fatigue resistance to various types of deformation, easy breakage and poor elasticity due to the fact that the number of molecular chains bearing external tension is small.
Disclosure of Invention
The invention aims to provide a processing method of antistatic polyamide elastomer spinning, and the antistatic polyamide elastomer spinning obtained by the processing method has the advantages of good spinning elasticity, light weight, low temperature resistance, yellowing resistance, high resistivity and good water absorption.
In order to achieve the purpose, the invention adopts the following technical scheme:
a processing method of antistatic polyamide elastomer spinning comprises the following steps:
s1, melting the antistatic polyamide elastomer, and spinning the melted antistatic polyamide elastomer to obtain a primary spun yarn;
s2, drafting the primary spun yarn by 4-6 times to obtain the antistatic polyamide elastomer spun yarn.
Preferably, in step S1, the antistatic polyamide elastomer is put into an extruder to be melted and spun.
Preferably, the melting temperature is controlled to be 130 ℃ to 180 ℃.
Preferably, the processing method further comprises, before the step S2, feeding the as-spun yarn obtained in the step S1 to a drawing machine; in the step S2, the as-spun yarn is drawn by the drawing machine.
Preferably, in the step S2, the as-spun yarn having a temperature of 60 ℃ to 90 ℃ is drawn.
Preferably, in S2, the spun yarn is drawn by 4 to 5 times to obtain the antistatic polyamide elastomer spun yarn.
Preferably, the antistatic polyamide elastomer comprises polyamide hard block polymer units, ionic surfactants, hydrophilic group-containing soft block polymer units, molecular weight regulators, water, antioxidants and ethoxylated lauryl tyramine; and the mass percentage is as follows: 50-70% of polyamide hard segment polymer units; 1-3% of ionic surfactant; 20-40% of soft block polymer units containing hydrophilic groups; 1-10% of molecular weight regulator; 3-5% of water; 0.3 to 0.5 percent of antioxidant; 1-5% of ethoxy lauryl tyramine.
Preferably, the preparation of the antistatic polyamide elastomer spinning comprises the following steps:
1) weighing the raw materials according to the mass percentage;
2) adding a polyamide hard segment polymer unit, an ionic surfactant, a soft segment polymer unit containing a hydrophilic group, a molecular weight regulator, water, an antioxidant and ethoxy lauryl tyramine into a reaction kettle, heating to 80-95 ℃ under the protection of nitrogen for reaction, and mechanically stirring for 2-4 hours;
3) heating to 140 ℃ and 210 ℃ for polymerization, and mechanically stirring for reaction for 1-3 hours;
4) heating to 240 ℃ and 280 ℃ for continuous polymerization, and mechanically stirring for reaction for 1-4 hours;
5) vacuumizing to 0.2-2MPa, continuously mechanically stirring, and reacting for 1-3 hours to obtain the antistatic polyamide elastomer.
Preferably, the polyamide hard segment polymer unit is one or more of caprolactam, 11-aminoundecanoic acid and laurolactam; the ionic surfactant is one of sodium dodecyl benzene sulfonate and sodium octadecyl benzene sulfonate; the soft segment polymer unit containing the hydrophilic group is one or more of polyethylene glycol, polypropylene glycol, amino-terminated polyoxypropylene ether and amino-terminated polyoxyethylene ether; the molecular weight regulator is one or more of terephthalic acid, adipic acid, hexamethylene diamine, dodecanedioic acid and isophthalic acid.
The invention also provides a processing method of the antistatic polyamide elastomer spinning, which comprises the following steps: s1, melting the electrostatic polyamide elastomer, and spinning the molten electrostatic polyamide elastomer to obtain a primary spun yarn, wherein the electrostatic polyamide elastomer comprises a polyamide hard segment polymer unit, an ionic surfactant, a hydrophilic group-containing soft segment polymer unit, a molecular weight regulator, water, an antioxidant and ethoxylaurylamine; and the mass percentage is as follows: 50-70% of polyamide hard segment polymer unit; 1-3% of ionic surfactant; 20-40% of soft block polymer units containing hydrophilic groups; 1-10% of molecular weight regulator; 3-5% of water; 0.3 to 0.5 percent of antioxidant; 1-5% of ethoxy lauryl tyramine; s2, firstly, preliminarily drafting the preliminary spun yarn at the temperature of 60-70 ℃ by 1-2 times, and then soaking the preliminary spun yarn subjected to preliminary drafting in a polyamide solution for 2-4 hours, wherein the polyamide solution comprises the following components in percentage by mass: 50-70% of polyamide hard segment polymer units; 1-3% of ionic surfactant; 20-40% of soft block polymer units containing hydrophilic groups; 1-10% of molecular weight regulator; 3-5% of water; and heating the initial spun yarn after soaking to 110-130 ℃, and putting the initial spun yarn into a drafting machine for drafting by 3-5 times.
In the step S2, the molecular chain bearing the applied tension in the obtained preliminary spun yarn is relaxed through preliminary drafting, and then is infiltrated by the polyamide solution, so that the polyamide hard segment polymer units in the polyamide solution and the preliminary spun yarn are crosslinked and partially polymerized, thereby enhancing the breaking strength and elasticity of the preliminary spun yarn, and then the temperature is increased to 110-130 ℃, further enhancing the crosslinking and polymerization reaction, and further enhancing the breaking strength and elasticity after drafting by 3-5 times.
The invention also provides antistatic polyamide elastomer spinning which is prepared by the processing method of the antistatic polyamide elastomer spinning.
Compared with the prior art, the invention has the beneficial effects that:
the processing method of the antistatic polyamide elastomer spinning provided in the technical scheme comprises the steps of melting the antistatic polyamide elastomer, spinning the melted antistatic polyamide elastomer, drafting the obtained initial spinning by 4-6 times, spinning the melted antistatic polyamide elastomer, drafting the obtained initial spinning, increasing the number of molecular chains bearing external tension on the obtained antistatic polyamide elastomer spinning, obviously improving the breaking strength, having better elasticity, improving the low temperature resistance due to the drafting of the initial spinning, having yellowing resistance, antistatic property and better water absorption, reducing the spinning sectional area of the prepared antistatic polyamide elastomer due to the drafting of the initial spinning by 4-6 times, and enabling the fabric spun by the antistatic polyamide elastomer spinning to have lighter weight in a unit area, has better applicability.
Detailed Description
In order to better understand the present invention, the contents of the present invention will be further described below with reference to some examples. The various embodiments may be combined with each other to form other embodiments not shown in the following description.
The invention provides a processing method of antistatic polyamide elastomer spinning, which comprises the following steps:
s1, putting the antistatic polyamide elastomer into an extruder for melting for 1-2h, and spinning the melted antistatic polyamide elastomer by a spinneret plate to obtain a primary spun yarn, wherein the melting temperature is controlled to be 130-180 ℃, the extruder can be a double-screw extruder or a single-screw extruder, and the like, and the melting temperature is controlled to be 130-180 ℃ so as to reach the melting point of the antistatic polyamide elastomer.
And (3) sending the primary spun yarn obtained in the step (S1) to a drafting machine, reducing the temperature after the primary spun yarn is sent to the drafting machine, and drafting the primary spun yarn with the temperature of 60-90 ℃.
S2, drafting the primary spun yarn by 4-6 times to obtain the antistatic polyamide elastomer spun yarn, cooling, bundling the antistatic polyamide elastomer spun yarn in a winding mode, wherein the winding speed can be 1.6-2.0 km/min.
It can be understood that the melted antistatic polyamide elastomer is spun, the obtained initial spinning is drawn, macromolecules in the antistatic polyamide elastomer material are oriented along an axis in the drawing process, hydrogen bonds, dipole bonds and other intermolecular forces are increased, the number of molecular chains bearing external tension is increased, the breaking strength is obviously improved, the elastic antistatic polyamide elastomer material has better elasticity, the low temperature resistance is also improved due to the drawing of the initial spinning, the yellowing resistance, the antistatic property and the better water absorption are realized, and the cross section area of the prepared antistatic polyamide elastomer spinning is reduced due to the drawing of the initial spinning by 4-6 times, so that the fabric spun by the antistatic polyamide elastomer spinning has lighter weight in a unit area.
As a preferable embodiment, in S2, the primary spun yarn is drawn by 4 to 5 times to obtain the antistatic polyamide elastomer spun yarn, and it can be understood that the primary spun yarn is drawn by 4 to 5 times, that is, the obtained antistatic polyamide elastomer spun yarn is 4 to 5 times of the length of the primary spun yarn, so that the cross-sectional area of the prepared antistatic polyamide elastomer spun yarn is reduced relative to that of the primary spun yarn, and the fabric spun by the antistatic polyamide elastomer spun yarn has a lighter weight per unit area.
Wherein, the antistatic polyamide elastomer comprises a polyamide hard segment polymer unit, an ionic surfactant, a soft segment polymer unit containing a hydrophilic group, a molecular weight regulator, water, an antioxidant and ethoxy lauryl tyramine; and the mass percentage is as follows: 50-70% of polyamide hard segment polymer units; 1-3% of ionic surfactant; 20-40% of soft block polymer units containing hydrophilic groups; 1-10% of molecular weight regulator; 3-5% of water; 0.3 to 0.5 percent of antioxidant; 1-5% of ethoxy lauryl tyramine.
Wherein the polyamide hard segment polymer unit is one or more of caprolactam, 11-aminoundecanoic acid and laurolactam, and the mass percentage is 50-70%.
The ionic surfactant is one of sodium dodecyl benzene sulfonate and sodium octadecyl benzene sulfonate, and the mass percentage is 1-3%.
The soft segment polymer unit containing the hydrophilic group is one or more of polyethylene glycol, polypropylene glycol, amino-terminated polypropylene oxide ether and amino-terminated polyethylene oxide ether, and the mass percentage is 20-40%.
The molecular weight regulator is one or more of terephthalic acid, adipic acid, hexamethylene diamine, dodecanedioic acid and isophthalic acid, and the mass percentage is 1-10%.
In addition, the preparation of the antistatic polyamide elastomer spinning comprises the following steps:
1) weighing the raw materials according to the mass percentage;
2) adding a polyamide hard segment polymer unit, an ionic surfactant, a soft segment polymer unit containing a hydrophilic group, a molecular weight regulator, water, an antioxidant and ethoxy lauryl tyramine into a reaction kettle, heating to 80-95 ℃ under the protection of nitrogen for reaction, and mechanically stirring for 2-4 hours;
3) heating to 140 ℃ and 210 ℃ for polymerization, and mechanically stirring for reaction for 1-3 hours;
4) heating to 240 ℃ and 280 ℃ for continuous polymerization, and mechanically stirring for reaction for 1-4 hours;
5) vacuumizing to 0.2-2MPa, continuously mechanically stirring, and reacting for 1-3 hours to obtain the antistatic polyamide elastomer.
The invention also provides antistatic polyamide elastomer spinning which is prepared by the processing method of the antistatic polyamide elastomer spinning, and can be understood that the antistatic polyamide elastomer is placed into an extruder to be melted and spun to obtain primary spinning, the primary spinning is drafted by 4-6 times through a drafting machine to obtain the antistatic polyamide elastomer spinning, and the antistatic polyamide elastomer spinning is bundled in a winding mode after being cooled.
The method for processing the antistatic polyamide elastomer spun yarn provided by the present application will be further described with reference to the following examples.
Example 1
The processing method of the antistatic polyamide elastomer spinning provided by the embodiment comprises the following steps:
first, the preparation of the antistatic polyamide elastomer was carried out, with the following steps:
1) weighing 50g of caprolactam (Nantong Wanrong International trade Co., Ltd.), 1g of sodium dodecyl benzene sulfonate (Jinnan Qianji chemical Co., Ltd.), 39.7g of polyethylene glycol (Nantong Hongshi chemical Co., Ltd.), 5g of terephthalic acid (Shandong Hao Shunhui chemical Co., Ltd.), 3g of water, 0.3g of antioxidant (Zhonghui plastic additive Co., Ltd., Dongguan) and 1g of ethoxy lauryl amine according to mass percentage;
2) putting the materials into a reaction kettle, heating to 80 ℃ under the protection of nitrogen for reaction, and mechanically stirring for 4 hours;
3) heating to 140 ℃ for polymerization, and mechanically stirring for reaction for 3 hours;
4) heating to 240 ℃ to continue polymerization, and mechanically stirring to react for 4 hours;
5) vacuumizing to 0.2MPa, continuously mechanically stirring, and reacting for 3 hours to obtain the antistatic polyamide elastomer.
Then, the prepared antistatic polyamide elastomer is spun, and the steps are as follows:
s1, putting the antistatic polyamide elastomer into a double-screw extruder for melting, wherein the melting temperature is 130 ℃, the melting time is 2 hours, and spinning the molten antistatic polyamide elastomer through a spinneret plate to obtain an initial spun yarn.
And (3) feeding the spun yarn obtained in the step (S1) to a drawing machine, reducing the temperature after the spun yarn is fed to the drawing machine, and drawing the spun yarn with the temperature of 60 ℃.
S2, drafting the primary spun yarn by 4 times to obtain the antistatic polyamide elastomer spun yarn, cooling, bundling the antistatic polyamide elastomer spun yarn in a winding mode, wherein the winding speed can be 1.6 km/min.
Example 2
The processing method of the antistatic polyamide elastomer spinning provided by the embodiment comprises the following steps:
first, the preparation of the antistatic polyamide elastomer was carried out, with the following steps:
1) weighing raw materials, by mass, 70g of 11-aminoundecanoic acid (limited science and technology of Tianhong biochemistry, Tazhou), 3g of sodium octadecyl benzene sulfonate (limited petrochemical company of Nantong Runfeng), 20g of polypropylene glycol (Heian petrochemical plant of Jiangsu province), 10g of adipic acid (limited science and technology of Shanxi Yuan Youhuang biology), 5g of water, 0.5g of antioxidant (plastic auxiliary agent of Hui of Dongguan city) and 5g of ethoxy lauryl tyramine;
2) putting the materials into a reaction kettle, heating to 95 ℃ under the protection of nitrogen for reaction, and mechanically stirring for 2 hours;
3) heating to 210 ℃ for polymerization, and mechanically stirring for reaction for 1 hour;
4) heating to 280 ℃ to continue polymerization, and mechanically stirring to react for 1 hour;
5) vacuumizing to 2MPa, continuously mechanically stirring, and reacting for 1 hour to obtain the antistatic polyamide elastomer.
Then, the prepared antistatic polyamide elastomer is spun, and the steps are as follows:
s1, putting the antistatic polyamide elastomer into a double-screw extruder for melting, wherein the melting temperature is 180 ℃, the melting time is 1h, and spinning the molten antistatic polyamide elastomer through a spinneret plate to obtain an initial spun yarn.
And (3) feeding the spun yarn obtained in the step (S1) to a drawing machine, reducing the temperature after the spun yarn is fed to the drawing machine, and drawing the spun yarn with the temperature of 90 ℃.
S2, drafting the primary spun yarn by 6 times to obtain the antistatic polyamide elastomer spun yarn, cooling, bundling the antistatic polyamide elastomer spun yarn in a winding mode, wherein the winding speed can be 1.6 km/min.
Example 3
The processing method of the antistatic polyamide elastomer spinning provided by the embodiment comprises the following steps:
first, the preparation of the antistatic polyamide elastomer was carried out, with the following steps:
1) weighing 50g of laurolactam (Shanghai Yi plastification Co., Ltd.), 2g of sodium dodecyl benzene sulfonate (Jinan Qianji chemical Co., Ltd.), 40g of amino-terminated polyoxyethylene ether, 1g of hexamethylenediamine (Shanghai Long chemical Co., Ltd.), 4g of water, 0.4g of antioxidant (Shanghai Hui plastics auxiliaries Co., Ltd.) and 3g of ethoxy lauryl tyramine according to mass percentage;
2) putting the materials into a reaction kettle, heating to 80-95 ℃ under the protection of nitrogen for reaction, and mechanically stirring for 2-4 hours;
3) heating to 160 ℃ for polymerization, and mechanically stirring for reaction for 2.5 hours;
4) heating to 250 ℃ to continue polymerization, and mechanically stirring to react for 3 hours;
5) vacuumizing to 0.8MPa, continuously mechanically stirring, and reacting for 2 hours to obtain the antistatic polyamide elastomer.
Then, the prepared antistatic polyamide elastomer is spun, and the steps are as follows:
s1, putting the antistatic polyamide elastomer into a double-screw extruder for melting, wherein the melting temperature is 140 ℃, the melting time is 2 hours, and spinning the molten antistatic polyamide elastomer through a spinneret plate to obtain an initial spinning yarn.
And (3) feeding the spun yarn obtained in the step (S1) to a drawing machine, reducing the temperature after the spun yarn is fed to the drawing machine, and drawing the spun yarn with the temperature of 70 ℃.
S2, drafting the primary spun yarn by 4 times to obtain the antistatic polyamide elastomer spun yarn, cooling, and bundling the antistatic polyamide elastomer spun yarn in a winding mode, wherein the winding speed is 2.0 km/min.
Example 4
The processing method of the antistatic polyamide elastomer spinning provided by the embodiment comprises the following steps:
first, the preparation of the antistatic polyamide elastomer was carried out, with the following steps:
1) weighing 20g of caprolactam (Nantong Wanrong International trade company, Ltd.), 40g of laurolactam, 2.5g of sodium octadecyl benzene sulfonate (Nantong Runfeng petrochemical company, Ltd.), 20g of amino-terminated polyoxypropylene ether, 5g of polyethylene glycol (Jinnan Zhiding commercial company, Ltd.), 6g of dodecanedioic acid (Shandong Cuitai Biotechnology company, Ltd.), 3.5g of water, 0.4g of antioxidant (Zhonghui Plastic auxiliary agent company, Ltd., Dongguan city) and 4g of ethoxy lauryl amine according to mass percentage;
2) putting the materials into a reaction kettle, heating to 80-95 ℃ under the protection of nitrogen for reaction, and mechanically stirring for 2-4 hours;
3) heating to 190 ℃ for polymerization, and mechanically stirring for reaction for 1.5 hours;
4) heating to 270 ℃ to continue polymerization, and mechanically stirring to react for 1 hour;
5) vacuumizing to 1MPa, continuously mechanically stirring, and reacting for 1.5 hours to obtain the antistatic polyamide elastomer.
Then, the prepared antistatic polyamide elastomer is spun, and the steps are as follows:
s1, putting the antistatic polyamide elastomer into a single-screw extruder for melting, wherein the melting temperature is 150 ℃, the melting time is 1.5h, and spinning the molten antistatic polyamide elastomer through a spinneret plate to obtain primary spinning.
And (3) feeding the spun yarn obtained in the step (S1) to a drawing machine, reducing the temperature after the spun yarn is fed to the drawing machine, and drawing the spun yarn with the temperature of 80 ℃.
S2, drafting the primary spun yarn by 5 times to obtain the antistatic polyamide elastomer spun yarn, cooling, and bundling the antistatic polyamide elastomer spun yarn in a winding mode, wherein the winding speed is 1.8 km/min.
Example 5
The processing method of the antistatic polyamide elastomer spinning provided by the embodiment comprises the following steps:
first, the preparation of the antistatic polyamide elastomer was carried out, with the following steps:
1) weighing raw materials according to mass percentage, 65g of caprolactam (Nantong Wanrong International trade company, Ltd.), 3g of sodium dodecyl benzene sulfonate (Jinnan Qianji chemical industry Co., Ltd.), 35g of polypropylene glycol (Jiangsu Haian petrochemical plant), 2.5g of hexamethylene diamine (Shanghai Long chemical industry Co., Ltd.), 2.5g of isophthalic acid (Johnson Enhance chemical technology Co., Ltd.), 3g of water, 0.3g of antioxidant (Zhonghui plastic assistant Limited company in Dongguan city), and 5g of ethoxy lauryl amine;
2) putting the materials into a reaction kettle, heating to 80-95 ℃ under the protection of nitrogen for reaction, and mechanically stirring for 2-4 hours;
3) heating to 200 ℃ for polymerization, and mechanically stirring for reaction for 1 hour;
4) heating to 260 ℃ to continue polymerization, and mechanically stirring to react for 1.5 hours;
5) vacuumizing to 1.5MPa, continuously mechanically stirring, and reacting for 1 hour to obtain the antistatic polyamide elastomer.
Then, the prepared antistatic polyamide elastomer is spun, and the steps are as follows:
s1, putting the antistatic polyamide elastomer into a double-screw extruder for melting, wherein the melting temperature is 160 ℃, the melting time is 2 hours, and spinning the molten antistatic polyamide elastomer through a spinneret plate to obtain primary spinning.
And (3) feeding the spun yarn obtained in the step (S1) to a drawing machine, reducing the temperature after the spun yarn is fed to the drawing machine, and drawing the spun yarn with the temperature of 70 ℃.
S2, drafting the primary spun yarn by 4 times to obtain the antistatic polyamide elastomer spun yarn, cooling, and bundling the antistatic polyamide elastomer spun yarn in a winding mode, wherein the winding speed is 2.0 km/min.
Example 6
The processing method of the antistatic polyamide elastomer spinning provided by the embodiment comprises the following steps:
first, the preparation of the antistatic polyamide elastomer was carried out, with the following steps:
2) weighing raw materials according to mass percentage, 65g of caprolactam (Nantong Wanrong International trade company, Ltd.), 3g of sodium dodecyl benzene sulfonate (Jinnan Qianji chemical industry Co., Ltd.), 35g of polypropylene glycol (Jiangsu Haian petrochemical plant), 2.5g of hexamethylene diamine (Shanghai Long chemical industry Co., Ltd.), 2.5g of isophthalic acid (Johnson Enhance chemical technology Co., Ltd.), 3g of water, 0.3g of antioxidant (Zhonghui plastic assistant Limited company in Dongguan city), and 5g of ethoxy lauryl amine;
2) putting the materials into a reaction kettle, heating to 80-95 ℃ under the protection of nitrogen for reaction, and mechanically stirring for 2-4 hours;
3) heating to 200 ℃ for polymerization, and mechanically stirring for reaction for 1 hour;
4) heating to 260 ℃ to continue polymerization, and mechanically stirring to react for 1.5 hours;
5) vacuumizing to 1.5MPa, continuously mechanically stirring, and reacting for 1 hour to obtain the antistatic polyamide elastomer.
Then, the prepared antistatic polyamide elastomer is spun, and the steps are as follows:
s1, putting the antistatic polyamide elastomer into a double-screw extruder for melting, wherein the melting temperature is 160 ℃, the melting time is 2 hours, and spinning the molten antistatic polyamide elastomer through a spinneret plate to obtain primary spinning.
And (3) sending the primary spun yarn obtained in the step (S1) to a drawing machine, and reducing the temperature to 70 ℃ after the primary spun yarn is sent to the drawing machine.
S2, firstly, carrying out 2-time primary drafting on the primary spun yarn at the temperature of 70 ℃, and then putting the primary spun yarn subjected to primary drafting into a polyamide solution for soaking for 2 hours, wherein the polyamide solution comprises the following components in percentage by mass: caprolactam (Nantong Wanrong International trade Co., Ltd.) 65g, sodium dodecylbenzenesulfonate (Jinan Qianji chemical Co., Ltd.) 3g, polypropylene glycol (Jiangsu province, Haian petrochemical plant) 35g, hexamethylenediamine (Shanghai Longfa chemical Co., Ltd.) 2.5g, isophthalic acid (Jiaozhao Runyang chemical science and technology Co., Ltd.) 2.5g, and water 3 g; and heating the soaked initial spinning to 110 ℃, putting the initial spinning into a drafting machine for drafting by 3 times to obtain the antistatic polyamide elastomer spinning, cooling, and bundling the antistatic polyamide elastomer spinning in a winding mode, wherein the winding speed is 2.0 km/min.
Comparative example 1
The processing method of the antistatic polyamide elastomer spinning provided by the comparative example comprises the following steps:
first, the preparation of the antistatic polyamide elastomer was carried out, with the following steps:
1) weighing 50g of caprolactam (Nantong Wanrong International trade Co., Ltd.), 1g of sodium dodecyl benzene sulfonate (Jinnan Qianji chemical Co., Ltd.), 39.7g of polyethylene glycol (Nantong Hongshi chemical Co., Ltd.), 5g of terephthalic acid (Shandong Hao Shunhui chemical Co., Ltd.), 3g of water, 0.3g of antioxidant (Zhonghui plastic additive Co., Ltd., Dongguan) and 1g of ethoxy lauryl amine according to mass percentage;
2) putting the materials into a reaction kettle, heating to 80 ℃ under the protection of nitrogen for reaction, and mechanically stirring for 4 hours;
3) heating to 140 ℃ for polymerization, and mechanically stirring for reaction for 3 hours;
4) heating to 240 ℃ to continue polymerization, and mechanically stirring to react for 4 hours;
5) vacuumizing to 0.2MPa, continuously mechanically stirring, and reacting for 3 hours to obtain the antistatic polyamide elastomer.
Then, the prepared antistatic polyamide elastomer is spun, and the steps are as follows:
s1, putting the antistatic polyamide elastomer into a double-screw extruder for melting, wherein the melting temperature is 130 ℃, the melting time is 2 hours, and spinning the molten antistatic polyamide elastomer through a spinneret plate to obtain an initial spun yarn.
And (3) feeding the spun yarn obtained in the step (S1) to a drawing machine, reducing the temperature after the spun yarn is fed to the drawing machine, and drawing the spun yarn with the temperature of 40 ℃.
S2, drafting the primary spun yarn by 2 times to obtain the antistatic polyamide elastomer spun yarn, cooling, bundling the antistatic polyamide elastomer spun yarn in a winding mode, wherein the winding speed can be 1.6 km/min.
Comparative example 2
The processing method of the antistatic polyamide elastomer spinning provided by the comparative example comprises the following steps:
first, the preparation of the antistatic polyamide elastomer was carried out, with the following steps:
1) weighing raw materials, by mass, 70g of 11-aminoundecanoic acid (limited science and technology of Tianhong biochemistry, Tazhou), 3g of sodium octadecyl benzene sulfonate (limited petrochemical company of Nantong Runfeng), 20g of polypropylene glycol (Heian petrochemical plant of Jiangsu province), 10g of adipic acid (limited science and technology of Shanxi Yuan Youhuang biology), 5g of water, 0.5g of antioxidant (plastic auxiliary agent of Hui of Dongguan city) and 5g of ethoxy lauryl tyramine;
2) putting the materials into a reaction kettle, heating to 95 ℃ under the protection of nitrogen for reaction, and mechanically stirring for 2 hours;
3) heating to 210 ℃ for polymerization, and mechanically stirring for reaction for 1 hour;
4) heating to 280 ℃ to continue polymerization, and mechanically stirring to react for 1 hour;
5) vacuumizing to 2MPa, continuously mechanically stirring, and reacting for 1 hour to obtain the antistatic polyamide elastomer.
Then, the prepared antistatic polyamide elastomer is spun, and the steps are as follows:
s1, putting the antistatic polyamide elastomer into a double-screw extruder for melting, wherein the melting temperature is 180 ℃, the melting time is 1h, and spinning the molten antistatic polyamide elastomer through a spinneret plate to obtain an initial spun yarn.
And (3) feeding the spun yarn obtained in the step (S1) to a drawing machine, reducing the temperature after the spun yarn is fed to the drawing machine, and drawing the spun yarn with the temperature of 120 ℃.
S2, drafting the primary spun yarn by 8 times to obtain the antistatic polyamide elastomer spun yarn, cooling, bundling the antistatic polyamide elastomer spun yarn in a winding mode, wherein the winding speed can be 1.6 km/min.
The antistatic polyamide elastomer spinning prepared in the above examples 1 to 5 and comparative examples 1 to 2 were tested, respectively, and the test results are shown in the following table:
| test example | Elastic properties | Size of mass | Low temperature resistance | Yellowing resistance | Water absorption | Surface resistivity |
| Example 1 | Is preferably used | Is lighter | Is preferably used | Is preferably used | Is preferably used | 6.1×106 |
| Example 2 | Is preferably used | Is lighter | Is preferably used | Is preferably used | Is preferably used | 4.7×1011 |
| Example 3 | Is preferably used | Is lighter | Is preferably used | Is preferably used | Is preferably used | 1.9×107 |
| Example 4 | Is preferably used | Is lighter | Is preferably used | Is preferably used | Is preferably used | 2.6×1010 |
| Example 5 | Is preferably used | Is lighter | Is preferably used | Is preferably used | Is preferably used | 3.8×109 |
| Example 6 | Is very good | Is lighter | Is preferably used | Is preferably used | Is preferably used | 3.9×109 |
| Comparative example 1 | Is poor | Heavy weight | Is poor | Is poor | Is poor | 4.5×1014 |
| Comparative example 2 | Is poor | Heavy weight | Is poor | Is poor | Is poor | 1.5×1013 |
As can be seen from the above test results, regardless of whether it is compared with the processing method (comparative example 1) in which the temperature at which the as-spun yarn enters the drawing machine is low and the spinning of the antistatic polyamide elastomer is performed at a small draw ratio, or it is compared with the processing method (comparative example 2) in which the as-spun yarn enters the drawing machine is high and the spinning of the antistatic polyamide elastomer is performed at a large draw ratio; the antistatic polyamide elastomer spun yarns obtained by the processing method of the antistatic polyamide elastomer spun yarns provided in the embodiments 1 to 5 have better elasticity, low temperature resistance, yellowing resistance, antistatic property and water absorption, and the cross section area of the antistatic polyamide elastomer spun yarns obtained by preparation is reduced, so that the fabric woven by the antistatic polyamide elastomer spun yarns has lighter weight in unit area. Furthermore, the elastic properties of the antistatic polyamide elastomer spun yarn obtained in example 6 were significantly better than those of the other examples.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (10)
1. The processing method of the antistatic polyamide elastomer spinning is characterized by comprising the following steps of:
s1, melting the antistatic polyamide elastomer, and spinning the melted antistatic polyamide elastomer to obtain a primary spun yarn;
s2, drafting the primary spun yarn by 4-6 times to obtain the antistatic polyamide elastomer spun yarn.
2. The method of claim 1, wherein the antistatic polyamide elastomer is melt-spun in an extruder in step S1.
3. The method for spinning antistatic polyamide elastomer as claimed in claim 2, wherein the melting temperature is controlled to 130-180 ℃.
4. The method of claim 1, further comprising feeding the as-spun yarn from step S1 to a draw frame prior to step S2; in the step S2, the as-spun yarn is drawn by the drawing machine.
5. The method for spinning antistatic polyamide elastomer as claimed in claim 4, wherein in the step S2, the initial spinning with the temperature of 60-90 ℃ is drafted.
6. The method for spinning an antistatic polyamide elastomer as claimed in claim 1, wherein in S2, the spun yarn is drawn by 4 to 5 times to obtain the antistatic polyamide elastomer spun yarn.
7. The method of claim 1, wherein the antistatic polyamide elastomer comprises polyamide hard block polymer units, ionic surfactant, hydrophilic group-containing soft block polymer units, molecular weight regulator, water, antioxidant, and ethoxylated lauryl betaine; and the mass percentage is as follows: 50-70% of polyamide hard segment polymer units; 1-3% of ionic surfactant; 20-40% of soft block polymer units containing hydrophilic groups; 1-10% of molecular weight regulator; 3-5% of water; 0.3 to 0.5 percent of antioxidant; 1-5% of ethoxy lauryl tyramine.
8. The method for processing the antistatic polyamide elastomer spinning yarn as claimed in claim 7, wherein the preparation of the antistatic polyamide elastomer spinning yarn comprises the steps of:
1) weighing the raw materials according to the mass percentage;
2) adding a polyamide hard segment polymer unit, an ionic surfactant, a soft segment polymer unit containing a hydrophilic group, a molecular weight regulator, water, an antioxidant and ethoxy lauryl tyramine into a reaction kettle, heating to 80-95 ℃ under the protection of nitrogen for reaction, and mechanically stirring for 2-4 hours;
3) heating to 140 ℃ and 210 ℃ for polymerization, and mechanically stirring for reaction for 1-3 hours;
4) heating to 240 ℃ and 280 ℃ for continuous polymerization, and mechanically stirring for reaction for 1-4 hours;
5) vacuumizing to 0.2-2MPa, continuously mechanically stirring, and reacting for 1-3 hours to obtain the antistatic polyamide elastomer.
9. The method of claim 7, wherein the polyamide hard segment polymer units are one or more of caprolactam, 11-aminoundecanoic acid, and laurolactam; the ionic surfactant is one of sodium dodecyl benzene sulfonate and sodium octadecyl benzene sulfonate; the soft segment polymer unit containing the hydrophilic group is one or more of polyethylene glycol, polypropylene glycol, amino-terminated polyoxypropylene ether and amino-terminated polyoxyethylene ether; the molecular weight regulator is one or more of terephthalic acid, adipic acid, hexamethylene diamine, dodecanedioic acid and isophthalic acid.
10. Antistatic polyamide elastomer spinning, characterized in that it is prepared by the process according to any one of claims 1 to 9.
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