CN110655768A - Polylactic acid fiber fused polypyrrole material and preparation method thereof - Google Patents
Polylactic acid fiber fused polypyrrole material and preparation method thereof Download PDFInfo
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- CN110655768A CN110655768A CN201911065027.8A CN201911065027A CN110655768A CN 110655768 A CN110655768 A CN 110655768A CN 201911065027 A CN201911065027 A CN 201911065027A CN 110655768 A CN110655768 A CN 110655768A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
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- 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
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/0605—Polycondensates containing five-membered rings, not condensed with other rings, with nitrogen atoms as the only ring hetero atoms
- C08G73/0611—Polycondensates containing five-membered rings, not condensed with other rings, with nitrogen atoms as the only ring hetero atoms with only one nitrogen atom in the ring, e.g. polypyrroles
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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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
Abstract
The invention discloses a polylactic acid fiber fused polypyrrole material, which is prepared from the following raw materials in parts by weight: 40-50 parts of polylactic acid, 30-37 parts of pyrrole, 0.7-0.8 part of ferric trichloride, 1-2 parts of linoleic acid, 5-7 parts of hydroxyethyl cellulose, 0.8-2 parts of benzotriazole, 6-9 parts of light calcium carbonate, 0.4-1 part of monobutyl tin oxide, 1-2 parts of fatty acid polyglycol ester and 2-3 parts of triethylamine. The acid-doped polypyrrole solution disclosed by the invention can effectively improve the conductive stability of polypyrrole by doping with oleic acid, and the compatibility of calcium carbonate, polylactic acid fiber and polypyrrole is effectively realized by blending light calcium carbonate and aminated polylactic acid fiber, so that the conductive and mechanical stability of the finished material is improved.
Description
Technical Field
The invention belongs to the field of materials, and particularly relates to a polylactic acid fiber fused polypyrrole material and a preparation method thereof.
Background
Polypyrrole is a proper term in chemistry, is a common black, insoluble, infusible and conductive polymer, is usually obtained by oxidative polymerization of pyrrole monomers, and is also an effective means for preparing polypyrrole by electrochemical anodic oxidation; the polypyrrole can be used for biological and ion detection, super-capacitance and antistatic materials, modified electrodes of photoelectrochemical cells and electrode materials of storage batteries. In addition, the material can be used as an electromagnetic shielding material and a gas separation membrane material, is used for electrolytic capacitors, electrocatalysis, conductive polymer composite materials and the like, has a wide application range, and has been paid attention to people since being discovered;
however, the stability and mechanical properties of the conductive polypyrrole material are poor, in order to improve and enhance the performance of polypyrrole, a great deal of researchers concentrate on the compounding of polypyrrole and other materials, and in recent years, the compounding of polypyrrole and carbon materials such as carbon nanotubes is widely developed, and research results show that the compounding of carbon nanotubes can greatly improve the performance of supercapacitors, but the carbon nanotubes have the defects of high cost, low specific capacitance and the like, so the invention aims to research a brand-new inorganic filler composite polypyrrole material so as to enhance the stability strength and mechanical properties of polypyrrole.
Disclosure of Invention
The invention aims to provide a polylactic acid fiber fused polypyrrole material and a preparation method thereof, aiming at the defects and the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a polylactic acid fiber fused polypyrrole material is composed of the following raw materials in parts by weight:
40-50 parts of polylactic acid, 30-37 parts of pyrrole, 0.7-0.8 part of ferric trichloride, 1-2 parts of linoleic acid, 5-7 parts of hydroxyethyl cellulose, 0.8-2 parts of benzotriazole, 6-9 parts of light calcium carbonate, 0.4-1 part of monobutyl tin oxide, 1-2 parts of fatty acid polyglycol ester and 2-3 parts of triethylamine.
The preparation method of the polylactic acid fiber fused polypyrrole material comprises the following steps:
(1) adding hydroxyethyl cellulose into deionized water with the weight 14-20 times of that of the hydroxyethyl cellulose, raising the temperature to 55-60 ℃, and keeping the temperature and stirring for 7-9 minutes to obtain a fiber solution;
(2) adding benzotriazole into anhydrous ethanol with the weight 3-5 times of that of benzotriazole, raising the temperature to 70-75 ℃, and stirring for 10-20 minutes under heat preservation to obtain alcohol dispersion liquid;
(3) mixing the fiber solution and the alcohol dispersion liquid, stirring uniformly, adding triethylamine, performing ultrasonic treatment for 1-2 hours, and distilling to remove ethanol to obtain an aminated fiber solution;
(4) adding polylactic acid into the aminated fiber solution, keeping the temperature at 60-65 ℃, stirring for 30-40 minutes, filtering, washing the precipitate with water, and drying at normal temperature to obtain aminated fiber modified polylactic acid;
(5) taking the aminated fiber modified polylactic acid, and carrying out melt spinning to obtain aminated polylactic acid fiber;
(6) adding ferric trichloride into chloroform with the weight 10-15 times of that of the ferric trichloride, and uniformly stirring;
(7) mixing light calcium carbonate and linoleic acid, stirring for 10-20 minutes at 50-60 ℃, adding into trichloromethane which is 4-5 times of the weight of the mixture, adding pyrrole, stirring uniformly, feeding into a reaction kettle, introducing nitrogen, adjusting the temperature of the reaction kettle to 70-75 ℃, adding into the trichloromethane solution of ferric trichloride, stirring for 3-4 hours at a constant temperature, adding monobutyltin oxide, stirring uniformly, discharging to obtain an acid-doped polypyrrole solution;
(8) and (2) adding the aminated polylactic acid fiber into an acid-doped polypyrrole solution, uniformly stirring, adding fatty acid polyethylene glycol ester, carrying out ultrasonic treatment for 10-15 minutes, filtering, washing the precipitate with water, and drying at the temperature of 45-50 ℃ in vacuum for 30-40 minutes to obtain the polylactic acid fiber molten polypyrrole material.
The invention has the advantages that:
the method comprises the steps of dispersing hydroxyethyl cellulose into an ethanol solution of benzotriazole, treating with triethylamine to obtain aminated cellulose, mixing with polylactic acid, and carrying out melt spinning to obtain aminated polylactic acid fiber; the method takes pyrrole as a monomer, ferric trichloride as an oxidant, linoleic acid as a doping agent and light calcium carbonate as an additive to obtain an acid-doped polypyrrole solution; the acid-doped polypyrrole solution disclosed by the invention can effectively improve the conductive stability of polypyrrole by doping with oleic acid, and the compatibility of calcium carbonate, polylactic acid fiber and polypyrrole is effectively realized by blending light calcium carbonate and aminated polylactic acid fiber, so that the conductive and mechanical stability of the finished material is improved.
Detailed Description
Example 1
A polylactic acid fiber fused polypyrrole material is composed of the following raw materials in parts by weight:
40 parts of polylactic acid, 30 parts of pyrrole, 0.7 part of ferric trichloride, 1 part of linoleic acid, 5 parts of hydroxyethyl cellulose, 0.8 part of benzotriazole, 6 parts of light calcium carbonate, 0.4 part of monobutyl tin oxide, 1 part of fatty acid polyglycol ester and 2 parts of triethylamine.
The preparation method of the polylactic acid fiber fused polypyrrole material comprises the following steps:
(1) adding hydroxyethyl cellulose into deionized water with the weight 14 times of that of the hydroxyethyl cellulose, raising the temperature to 55 ℃, and keeping the temperature and stirring for 7 minutes to obtain a fiber solution;
(2) adding benzotriazole into anhydrous ethanol with the weight 3 times of that of benzotriazole, raising the temperature to 70 ℃, and stirring for 10 minutes under heat preservation to obtain alcohol dispersion liquid;
(3) mixing the fiber solution and the alcohol dispersion liquid, stirring uniformly, adding triethylamine, performing ultrasonic treatment for 1 hour, and distilling to remove ethanol to obtain an aminated fiber solution;
(4) adding polylactic acid into the aminated fiber solution, keeping the temperature at 60 ℃, stirring for 30 minutes, filtering, washing the precipitate with water, and drying at normal temperature to obtain aminated fiber modified polylactic acid;
(5) taking the aminated fiber modified polylactic acid, and carrying out melt spinning to obtain aminated polylactic acid fiber;
(6) adding ferric trichloride into chloroform with the weight 10 times of that of the ferric trichloride, and uniformly stirring;
(7) mixing light calcium carbonate and linoleic acid, stirring for 10 minutes at 50 ℃ under heat preservation, adding the mixture into trichloromethane with the weight 4 times of that of the mixture, adding pyrrole, stirring uniformly, feeding the mixture into a reaction kettle, introducing nitrogen, adjusting the temperature of the reaction kettle to be 70 ℃, adding the trichloromethane solution of ferric trichloride, stirring for 3 hours under heat preservation, adding monobutyltin oxide, stirring uniformly, discharging to obtain an acid-doped polypyrrole solution;
(8) and (2) adding the aminated polylactic acid fiber into an acid-doped polypyrrole solution, uniformly stirring, adding fatty acid polyethylene glycol ester, carrying out ultrasonic treatment for 10 minutes, filtering, washing the precipitate with water, and drying for 30 minutes at the temperature of 45 ℃ in vacuum to obtain the polylactic acid fiber fused polypyrrole material.
Example 2
A polylactic acid fiber fused polypyrrole material is composed of the following raw materials in parts by weight:
50 parts of polylactic acid, 37 parts of pyrrole, 0.8 part of ferric trichloride, 2 parts of linoleic acid, 7 parts of hydroxyethyl cellulose, 2 parts of benzotriazole, 9 parts of light calcium carbonate, 1 part of monobutyl tin oxide, 2 parts of fatty acid polyglycol ester and 3 parts of triethylamine.
The preparation method of the polylactic acid fiber fused polypyrrole material comprises the following steps:
(1) adding hydroxyethyl cellulose into deionized water with the weight of 20 times of that of the hydroxyethyl cellulose, raising the temperature to 55-60 ℃, and keeping the temperature and stirring for 9 minutes to obtain a fiber solution;
(2) adding benzotriazole into 5 times of anhydrous ethanol, heating to 75 deg.C, stirring for 20 min to obtain alcohol dispersion;
(3) mixing the fiber solution and the alcohol dispersion liquid, stirring uniformly, adding triethylamine, performing ultrasonic treatment for 2 hours, and distilling to remove ethanol to obtain an aminated fiber solution;
(4) adding polylactic acid into the aminated fiber solution, keeping the temperature at 65 ℃ and stirring for 40 minutes, filtering, washing the precipitate with water, and drying at normal temperature to obtain aminated fiber modified polylactic acid;
(5) taking the aminated fiber modified polylactic acid, and carrying out melt spinning to obtain aminated polylactic acid fiber;
(6) adding ferric trichloride into chloroform 15 times of the weight of the ferric trichloride, and uniformly stirring;
(7) mixing light calcium carbonate and linoleic acid, stirring for 20 minutes at the temperature of 60 ℃, adding the mixture into trichloromethane which is 5 times of the weight of the mixture, adding pyrrole, stirring uniformly, feeding the mixture into a reaction kettle, introducing nitrogen, adjusting the temperature of the reaction kettle to be 75 ℃, adding a trichloromethane solution of ferric trichloride, stirring for 4 hours at the temperature of 75 ℃, adding monobutyl tin oxide, stirring uniformly, discharging to obtain an acid-doped polypyrrole solution;
(8) and (2) adding the aminated polylactic acid fiber into an acid-doped polypyrrole solution, uniformly stirring, adding fatty acid polyethylene glycol ester, carrying out ultrasonic treatment for 15 minutes, filtering, washing the precipitate with water, and drying at the temperature of 50 ℃ in vacuum for 40 minutes to obtain the polylactic acid fiber fused polypyrrole material.
And (3) performance testing:
the polylactic acid fiber fused polypyrrole material of embodiment 1 of the invention:
performing a charge and discharge test, wherein the specific capacitance under the charge and discharge condition of 0.2A/g is 240F/g; the tensile strength is 120.5 MPa;
the polylactic acid fiber fused polypyrrole material of embodiment 2 of the invention:
a charge and discharge test is carried out, and the specific capacitance under the charge and discharge condition of 0.2A/g is 246F/g; tensile strength 119 MPa;
commercially pure polypyrrole:
carrying out a charge-discharge test, wherein the specific capacitance under the charge-discharge condition of 0.2A/g is 114F/g; the tensile strength is 90.3 MPa; the composite material has better conductive stability and mechanical property and excellent comprehensive performance.
Claims (1)
1. A polylactic acid fiber fused polypyrrole material is characterized by being composed of the following raw materials in parts by weight:
40 parts of polylactic acid, 30 parts of pyrrole, 0.7 part of ferric trichloride, 1 part of linoleic acid, 5 parts of hydroxyethyl cellulose, 0.8 part of benzotriazole, 6 parts of light calcium carbonate, 0.4 part of monobutyl tin oxide, 1 part of fatty acid polyglycol ester and 2 parts of triethylamine;
the preparation method of the polylactic acid fiber fused polypyrrole material comprises the following steps:
(1) adding hydroxyethyl cellulose into deionized water with the weight 14 times of that of the hydroxyethyl cellulose, raising the temperature to 55 ℃, and keeping the temperature and stirring for 7 minutes to obtain a fiber solution;
(2) adding benzotriazole into anhydrous ethanol with the weight 3 times of that of benzotriazole, raising the temperature to 70 ℃, and stirring for 10 minutes under heat preservation to obtain alcohol dispersion liquid;
(3) mixing the fiber solution and the alcohol dispersion liquid, stirring uniformly, adding triethylamine, performing ultrasonic treatment for 1 hour, and distilling to remove ethanol to obtain an aminated fiber solution;
(4) adding polylactic acid into the aminated fiber solution, keeping the temperature at 60 ℃, stirring for 30 minutes, filtering, washing the precipitate with water, and drying at normal temperature to obtain aminated fiber modified polylactic acid;
(5) taking the aminated fiber modified polylactic acid, and carrying out melt spinning to obtain aminated polylactic acid fiber;
(6) adding ferric trichloride into chloroform with the weight 10 times of that of the ferric trichloride, and uniformly stirring;
(7) mixing light calcium carbonate and linoleic acid, stirring for 10 minutes at 50 ℃ under heat preservation, adding the mixture into trichloromethane with the weight 4 times of that of the mixture, adding pyrrole, stirring uniformly, feeding the mixture into a reaction kettle, introducing nitrogen, adjusting the temperature of the reaction kettle to be 70 ℃, adding the trichloromethane solution of ferric trichloride, stirring for 3 hours under heat preservation, adding monobutyltin oxide, stirring uniformly, discharging to obtain an acid-doped polypyrrole solution;
(8) and (2) adding the aminated polylactic acid fiber into an acid-doped polypyrrole solution, uniformly stirring, adding fatty acid polyethylene glycol ester, carrying out ultrasonic treatment for 10 minutes, filtering, washing the precipitate with water, and drying for 30 minutes at the temperature of 45 ℃ in vacuum to obtain the polylactic acid fiber fused polypyrrole material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911065027.8A CN110655768A (en) | 2017-12-06 | 2017-12-06 | Polylactic acid fiber fused polypyrrole material and preparation method thereof |
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| CN201911065027.8A CN110655768A (en) | 2017-12-06 | 2017-12-06 | Polylactic acid fiber fused polypyrrole material and preparation method thereof |
| CN201711278934.1A CN108047668B (en) | 2017-12-06 | 2017-12-06 | polylactic acid fiber fused polypyrrole material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114232126A (en) * | 2021-12-07 | 2022-03-25 | 雄安创新研究院 | Full-biodegradable efficient dust screen and preparation method thereof |
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| CN112266592B (en) * | 2020-11-04 | 2021-11-30 | 中国矿业大学 | High-conductivity nano-mineral modified fully-degradable polymer composite material and preparation method thereof |
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| CN114232126A (en) * | 2021-12-07 | 2022-03-25 | 雄安创新研究院 | Full-biodegradable efficient dust screen and preparation method thereof |
| CN114232126B (en) * | 2021-12-07 | 2023-12-22 | 雄安创新研究院 | Full-biodegradation efficient dustproof net and preparation method thereof |
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| CN108047668B (en) | 2019-12-13 |
| CN108047668A (en) | 2018-05-18 |
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