CN114934328A - Corrosion-resistant nylon yarn and manufacturing method thereof - Google Patents
Corrosion-resistant nylon yarn and manufacturing method thereof Download PDFInfo
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- CN114934328A CN114934328A CN202210632594.2A CN202210632594A CN114934328A CN 114934328 A CN114934328 A CN 114934328A CN 202210632594 A CN202210632594 A CN 202210632594A CN 114934328 A CN114934328 A CN 114934328A
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- corrosion
- resistant nylon
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- screw extruder
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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
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
Abstract
The invention relates to the technical field of nylon materials, in particular to a corrosion-resistant nylon yarn and a manufacturing method thereof. The corrosion-resistant nylon yarn comprises the following components: PA, PGA, reinforced fiber, silicon powder, compatilizer, heat stabilizer, corrosion inhibitor and lubricant. The corrosion-resistant nylon yarn disclosed by the invention has excellent mechanical properties, excellent corrosion resistance and certain degradability, can adapt to various working conditions, and can reduce the pollution to the environment.
Description
Technical Field
The invention relates to the technical field of nylon materials, in particular to a corrosion-resistant nylon yarn and a manufacturing method thereof.
Background
Polyamide, commonly known as nylon, is a polymer with amide (-CONH-) repeating structural units on a polymer chain, and has excellent comprehensive properties of high strength, wear resistance, self-lubrication, oil resistance, chemical corrosion resistance and the like, and a better cost performance ratio, so that the polyamide becomes engineering plastic with the largest consumption and the widest application range.
Nylon is often manufactured as nylon yarn for use, and the existing nylon yarn is often exposed to an organic solution, an acidic liquid or an alkaline liquid during use, which presents a great challenge to the corrosion resistance of the nylon yarn.
Meanwhile, with the use of ubiquitous plastic products, the problem of plastic pollution is not a little, and the development and the use of degradable plastics are promoted, however, the corrosion resistance of the existing degradable plastic products is poor, and the corrosion resistance and the degradability cannot be considered at the same time.
Disclosure of Invention
In order to improve the corrosion resistance of the nylon yarn, simultaneously provide certain degradability for the nylon yarn and reduce the pollution of the nylon yarn to the environment, the invention provides the corrosion-resistant nylon yarn and the manufacturing method thereof.
In a first aspect, the invention provides a corrosion-resistant nylon yarn, which adopts the following technical scheme:
the corrosion-resistant nylon yarn comprises the following components in percentage by mass:
further, the PA is PA 66.
Further, the corrosion inhibitor comprises cuprous carboxylate and potassium carboxylate.
Further, the cyclic lactone monomer is delta-valerolactone monomer or gamma-valerolactone monomer.
Further, the reinforcing fibers are carbon fibers.
Further, the compatibilizer includes glycidyl methacrylate and maleic anhydride.
Further, the ratio of the glycidyl methacrylate to the maleic anhydride is 0.8 to 1.2.
Further, the lubricant is one or a mixture of two or more of stearic acid amide, oleic acid amide, zinc stearate and calcium stearate.
In a second aspect, the invention provides a method for manufacturing a corrosion-resistant nylon yarn, which comprises the following steps:
(1) putting PA, PGA, a compatilizer, a heat stabilizer, a corrosion-resistant agent and a lubricant into a double-screw extruder through a raw material feeding port of the double-screw extruder;
(2) adding the reinforced fibers and the silicon powder into a double-screw extruder from a side feeding port of the double-screw extruder, and starting the double-screw extruder to obtain mixed nylon particles;
(3) and (3) putting the mixed nylon particles into a spinning machine to obtain the corrosion-resistant nylon yarn.
Further, the temperature of a first zone of the double-screw spinning machine is 270 ℃, the temperature of a second zone is 280 ℃, the temperature of a third zone is 290 ℃, the temperature of a fourth zone is 270-290 ℃, the temperature of a machine head is 280-290 ℃, the retention time is 3-5 min, and the pressure is 14-18 MPa.
In conclusion, the invention has the following beneficial effects:
1. by adding PGA, nylon filaments are endowed with certain degradability; the PGA material is a novel biological full-degradable material, is called polyglycolic acid, has the characteristics of full natural domain degradation, high barrier property, high strength, high heat resistance and the like compared with common polylactic acid and PBAT, and has better physical mechanical strength, biocompatibility and degradability, so that the mechanical strength of nylon yarns can be improved by adding the PGA;
2. by adding the reinforcing fiber, the corrosion resistance of the nylon wire can be improved, the wear resistance and the mechanical strength of the nylon wire can also be improved, the service life of the nylon wire is further prolonged, the scrapping time of the nylon wire is prolonged, the discarding frequency of the nylon wire is reduced, and the effect of reducing plastic pollution is achieved;
3. by adding the silicon powder, the silicon powder can be filled into the gaps of the nylon yarn, so that the nylon yarn is more compact, and an organic solvent or an acid-base solvent is prevented from permeating into the nylon yarn, thereby achieving the effect of improving the corrosion resistance, and meanwhile, the silicon powder can not cause pollution to the environment;
4. by adding the corrosion-resistant agent consisting of cuprous carboxylate and potassium carboxylate, organic solvent can be prevented from entering a molecular chain of PA, so that the corrosion resistance of the nylon yarn is effectively improved;
5. the carbon fiber is used as the reinforcing fiber, the compatibility of the reinforcing fiber with PA is good, the carbon fiber cannot pollute the nature, and the density of the carbon fiber is low, so that the use of the nylon yarn cannot be influenced due to overlarge weight.
Detailed Description
The present invention will be described in further detail with reference to examples.
Example 1
The corrosion-resistant nylon yarn comprises the following components in percentage by mass:
in this example, the compatibilizer was a mixture of glycidyl methacrylate and maleic anhydride, and the ratio of glycidyl methacrylate to maleic anhydride was 1: 1.
in this embodiment, the corrosion inhibitor is a mixture of a long-chain cuprous carboxylate and a long-chain potassium carboxylate.
The manufacturing method of the corrosion-resistant nylon yarn in the embodiment comprises the following steps:
(1) putting PA, PGA, a compatilizer, a heat stabilizer, a corrosion-resistant agent and a lubricant into a double-screw extruder through a raw material feeding port of the double-screw extruder;
(2) putting carbon fibers and silicon powder into a double-screw extruder from a side feeding port of the double-screw extruder, and starting the double-screw extruder to obtain mixed nylon particles;
(3) and (3) putting the mixed nylon particles into a spinning machine to obtain the corrosion-resistant nylon yarn.
In the step (2), the first zone temperature of the twin-screw spinning machine is 270 ℃, the second zone temperature is 280 ℃, the third zone temperature is 290 ℃, the fourth zone temperature is 280 ℃, the head temperature is 280 ℃, the residence time is 3min, and the pressure is 16 MPa.
Example 2
The corrosion-resistant nylon yarn comprises the following components in percentage by mass:
in this example, the compatibilizer was a mixture of glycidyl methacrylate and maleic anhydride, and the ratio of glycidyl methacrylate to maleic anhydride was 0.8: 1.
in this embodiment, the corrosion inhibitor is a mixture of a long-chain cuprous carboxylate and a long-chain potassium carboxylate.
The manufacturing method of the corrosion-resistant nylon yarn in the embodiment comprises the following steps:
(1) putting PA, PGA, a compatilizer, a heat stabilizer, a corrosion-resistant agent and a lubricant into a double-screw extruder through a raw material feeding port of the double-screw extruder;
(2) putting carbon fibers and silicon powder into a double-screw extruder from a side feeding port of the double-screw extruder, and starting the double-screw extruder to obtain mixed nylon particles;
(3) and (3) putting the mixed nylon particles into a spinning machine to obtain the corrosion-resistant nylon yarn.
In the step (2), the first zone temperature of the twin-screw spinning machine is 270 ℃, the second zone temperature is 280 ℃, the third zone temperature is 290 ℃, the fourth zone temperature is 280 ℃, the head temperature is 280 ℃, the residence time is 4min, and the pressure is 14 MPa.
Example 3
The corrosion-resistant nylon yarn comprises the following components in percentage by mass:
in this example, the compatibilizer was a mixture of glycidyl methacrylate and maleic anhydride, and the ratio of glycidyl methacrylate to maleic anhydride was 1.2: 1.
in this embodiment, the corrosion inhibitor is a mixture of a long-chain cuprous carboxylate and a long-chain potassium carboxylate.
The manufacturing method of the corrosion-resistant nylon yarn in the embodiment comprises the following steps:
(1) putting PA, PGA, a compatilizer, a heat stabilizer, a corrosion-resistant agent and a lubricant into a double-screw extruder through a raw material feeding port of the double-screw extruder;
(2) putting carbon fibers and silicon powder into a double-screw extruder from a side feeding port of the double-screw extruder, and starting the double-screw extruder to obtain mixed nylon particles;
(3) and (3) putting the mixed nylon particles into a spinning machine to obtain the corrosion-resistant nylon yarn.
In the step (2), the first zone temperature of the twin-screw spinning machine is 270 ℃, the second zone temperature is 280 ℃, the third zone temperature is 290 ℃, the fourth zone temperature is 280 ℃, the head temperature is 290 ℃, the residence time is 5min, and the pressure is 18 MPa.
Example 4
The corrosion-resistant nylon yarn comprises the following components in percentage by mass:
in this example, the compatibilizer was a mixture of glycidyl methacrylate and maleic anhydride, and the ratio of glycidyl methacrylate to maleic anhydride was 1: 1.
in this embodiment, the corrosion inhibitor is a mixture of a long-chain cuprous carboxylate and a long-chain potassium carboxylate.
The manufacturing method of the corrosion-resistant nylon yarn in the embodiment comprises the following steps:
(1) putting PA, PGA, a compatilizer, a heat stabilizer, a corrosion-resistant agent and a lubricant into a double-screw extruder through a raw material feeding port of the double-screw extruder;
(2) putting carbon fibers and silicon powder into a double-screw extruder from a side feeding port of the double-screw extruder, and starting the double-screw extruder to obtain mixed nylon particles;
(3) and (3) putting the mixed nylon particles into a spinning machine to obtain the corrosion-resistant nylon yarn.
In the step (2), the first zone temperature of the twin-screw spinning machine is 270 ℃, the second zone temperature is 280 ℃, the third zone temperature is 290 ℃, the fourth zone temperature is 280 ℃, the head temperature is 280 ℃, the residence time is 3min, and the pressure is 16 MPa.
Example 5
The corrosion-resistant nylon yarn comprises the following components in percentage by mass:
in this example, the compatibilizer was a mixture of glycidyl methacrylate and maleic anhydride, and the ratio of glycidyl methacrylate to maleic anhydride was 1: 1.
in this embodiment, the corrosion inhibitor is a mixture of a long-chain cuprous carboxylate and a long-chain potassium carboxylate.
The manufacturing method of the corrosion-resistant nylon yarn in the embodiment comprises the following steps:
(1) putting PA, PGA, a compatilizer, a heat stabilizer, a corrosion-resistant agent and a lubricant into a double-screw extruder through a raw material feeding port of the double-screw extruder;
(2) putting carbon fibers and silicon powder into a double-screw extruder from a side feeding port of the double-screw extruder, and starting the double-screw extruder to obtain mixed nylon particles;
(3) and (3) putting the mixed nylon particles into a spinning machine to obtain the corrosion-resistant nylon yarn.
In the step (2), the first zone temperature of the twin-screw spinning machine is 270 ℃, the second zone temperature is 280 ℃, the third zone temperature is 290 ℃, the fourth zone temperature is 280 ℃, the head temperature is 280 ℃, the residence time is 3min, and the pressure is 16 MPa.
Comparative example 1
The corrosion-resistant nylon yarn comprises the following components in percentage by mass:
in this example, the compatibilizer was a mixture of glycidyl methacrylate and maleic anhydride, and the ratio of glycidyl methacrylate to maleic anhydride was 1: 1.
in this embodiment, the corrosion inhibitor is a mixture of a long-chain cuprous carboxylate and a long-chain potassium carboxylate.
The manufacturing method of the corrosion-resistant nylon yarn in the embodiment comprises the following steps:
(1) putting PA, a compatilizer, a heat stabilizer, a corrosion resistance agent and a lubricant into a double-screw extruder through a raw material feeding port of the double-screw extruder;
(2) putting carbon fibers and silicon powder into a double-screw extruder from a side feeding port of the double-screw extruder, and starting the double-screw extruder to obtain mixed nylon particles;
(3) and (3) putting the mixed nylon particles into a spinning machine to obtain the corrosion-resistant nylon yarn.
In the step (2), the first zone temperature of the twin-screw spinning machine is 270 ℃, the second zone temperature is 280 ℃, the third zone temperature is 290 ℃, the fourth zone temperature is 280 ℃, the head temperature is 280 ℃, the residence time is 3min, and the pressure is 16 MPa.
Comparative example 2
The corrosion-resistant nylon yarn comprises the following components in percentage by mass:
in this example, the compatibilizer was a mixture of glycidyl methacrylate and maleic anhydride, and the ratio of glycidyl methacrylate to maleic anhydride was 1: 1.
the manufacturing method of the corrosion-resistant nylon yarn in the embodiment comprises the following steps:
(1) putting PA, PGA, a compatilizer, a heat stabilizer and a lubricant into a double-screw extruder through a raw material feeding port of the double-screw extruder;
(2) putting carbon fibers and silicon powder into a double-screw extruder from a side feeding port of the double-screw extruder, and starting the double-screw extruder to obtain mixed nylon particles;
(3) and (3) putting the mixed nylon particles into a spinning machine to obtain the corrosion-resistant nylon yarn.
In the step (2), the first zone temperature of the double-screw spinning machine is 270 ℃, the second zone temperature is 280 ℃, the third zone temperature is 290 ℃, the fourth zone temperature is 280 ℃, the head temperature is 280 ℃, the retention time is 3min, and the pressure is 16 MPa.
Comparative example 3
The corrosion-resistant nylon yarn comprises the following components in percentage by mass:
in this example, the compatibilizer was a mixture of glycidyl methacrylate and maleic anhydride, and the ratio of glycidyl methacrylate to maleic anhydride was 1: 1.
in this embodiment, the corrosion inhibitor is a mixture of a long-chain cuprous carboxylate and a long-chain potassium carboxylate.
The manufacturing method of the corrosion-resistant nylon yarn in the embodiment comprises the following steps:
(1) putting PA, PGA, a compatilizer, a heat stabilizer, a corrosion-resistant agent and a lubricant into a double-screw extruder through a raw material feeding port of the double-screw extruder;
(2) putting the mixture into a double-screw extruder from a side feeding port of the double-screw extruder, and starting the double-screw extruder to obtain mixed nylon particles;
(3) and (3) putting the mixed nylon particles into a spinning machine to obtain the corrosion-resistant nylon yarn.
In the step (2), the first zone temperature of the double-screw spinning machine is 270 ℃, the second zone temperature is 280 ℃, the third zone temperature is 290 ℃, the fourth zone temperature is 280 ℃, the head temperature is 280 ℃, the retention time is 3min, and the pressure is 16 MPa.
Performance test
Samples with the length of 100mm and the wire diameter of 0.2mm were prepared from the corrosion-resistant nylon yarns prepared in examples 1 to 5 and the corrosion-resistant nylon yarns prepared in comparative examples 1 to 3, and mechanical property test, degradation property test and corrosion resistance test were performedAnd the corrosion resistance test comprises the following steps of respectively placing a sample into a reactor containing ethylene glycol and water, wherein the weight ratio of the ethylene glycol to the water is 1: 1, standing for 200 hours at 135 ℃, and sampling every 100 hours to perform a mechanical strength test; reference for testing biological decomposition rate in seawater
The 'OK Biodegradable Marine certification' method published by AUSTRIA is to soak a sample test material in seawater for 6 months.
The test results are shown in table 1.
TABLE 1
As can be seen from table 1, the corrosion-resistant nylon yarn of the present invention has not only excellent mechanical properties, but also excellent corrosion resistance and a certain degradability, and is not only suitable for various working conditions, but also reduces environmental pollution.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications without inventive contribution to the present embodiment as required after reading the present specification, but all of them are protected by patent law within the scope of the present invention.
Claims (10)
1. The corrosion-resistant nylon wire is characterized by comprising the following components in percentage by mass:
2. the corrosion resistant nylon wire of claim 1, wherein the PA is PA 66.
3. The corrosion-resistant nylon filament of claim 1, wherein the corrosion-resistant agent comprises a cuprous carboxylate and a potassium carboxylate.
4. The corrosion-resistant nylon filament of claim 1, wherein the cyclic lactone monomer is a delta-valerolactone monomer or a gamma-valerolactone monomer.
5. The corrosion resistant nylon filament of claim 1 wherein the reinforcing fiber is carbon fiber.
6. The corrosion resistant nylon filament of claim 1, wherein the compatibilizer comprises glycidyl methacrylate and maleic anhydride.
7. The corrosion-resistant nylon yarn of claim 6, wherein the compatilizer is a mixture of glycidyl methacrylate and maleic anhydride, and the ratio of the glycidyl methacrylate to the maleic anhydride is 0.8-1.2: 1.
8. the corrosion-resistant nylon filament of claim 1, wherein the lubricant is one or a mixture of two or more of stearic acid amide, oleic acid amide, zinc stearate, and calcium stearate.
9. A method for manufacturing corrosion-resistant nylon filament according to any one of claims 1 to 8, comprising the steps of:
(1) putting PA, PGA, a compatilizer, a heat stabilizer, a corrosion-resistant agent and a lubricant into a double-screw extruder through a raw material feeding port of the double-screw extruder;
(2) adding the reinforced fibers and the silicon powder into a double-screw extruder from a side feeding port of the double-screw extruder, and starting the double-screw extruder to obtain mixed nylon particles;
(3) and (3) putting the mixed nylon particles into a spinning machine to obtain the corrosion-resistant nylon yarn.
10. The method for manufacturing the corrosion-resistant nylon yarn according to claim 9, wherein in the step (2), the temperature of the first zone, the temperature of the second zone, the temperature of the third zone, the temperature of the fourth zone, the temperature of the head of the twin-screw spinning machine is 270-290 ℃, the residence time is 3-5 min, and the pressure is 14-18 MPa.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210632594.2A CN114934328A (en) | 2022-06-06 | 2022-06-06 | Corrosion-resistant nylon yarn and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210632594.2A CN114934328A (en) | 2022-06-06 | 2022-06-06 | Corrosion-resistant nylon yarn and manufacturing method thereof |
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| CN114075376A (en) * | 2020-08-19 | 2022-02-22 | 国家能源投资集团有限责任公司 | Toughening degradable polyglycolic acid composition, toughening degradable polyglycolic acid material and preparation method and application thereof |
| CN114163791A (en) * | 2020-08-19 | 2022-03-11 | 国家能源投资集团有限责任公司 | Modified polyglycolic acid composition, modified polyglycolic acid material, and preparation method and application thereof |
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2022
- 2022-06-06 CN CN202210632594.2A patent/CN114934328A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103436010A (en) * | 2013-06-03 | 2013-12-11 | 安徽科聚新材料有限公司 | High strength and corrosion resistant PA66 material, and preparation method and application thereof |
| CN105111699A (en) * | 2015-09-23 | 2015-12-02 | 深圳埃菲尔投资有限公司 | Polybutylene succinate 3D printing wire and preparation method thereof |
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| CN114075376A (en) * | 2020-08-19 | 2022-02-22 | 国家能源投资集团有限责任公司 | Toughening degradable polyglycolic acid composition, toughening degradable polyglycolic acid material and preparation method and application thereof |
| WO2022037349A1 (en) * | 2020-08-19 | 2022-02-24 | 国家能源投资集团有限责任公司 | Toughening degradable polyglycolic acid composition, and toughening degradable polyglycolic acid material and preparation method therefor and use thereof |
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