CN105803781A - Lubricant for carbon fiber sizing agent and preparation method - Google Patents

Lubricant for carbon fiber sizing agent and preparation method Download PDF

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CN105803781A
CN105803781A CN201610265465.9A CN201610265465A CN105803781A CN 105803781 A CN105803781 A CN 105803781A CN 201610265465 A CN201610265465 A CN 201610265465A CN 105803781 A CN105803781 A CN 105803781A
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tungsten disulfide
polyacrylic acid
dispersion liquid
lubricant
acid modified
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CN105803781B (en
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叶明新
沈剑锋
李娜
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Fudan University
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Fudan University
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/263Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M125/00Lubricating compositions characterised by the additive being an inorganic material
    • C10M125/22Compounds containing sulfur, selenium or tellurium
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M161/00Lubricating compositions characterised by the additive being a mixture of a macromolecular compound and a non-macromolecular compound, each of these compounds being essential
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/184Carboxylic acids; Anhydrides, halides or salts thereof
    • D06M13/188Monocarboxylic acids; Anhydrides, halides or salts thereof
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/643Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06Metal compounds
    • C10M2201/065Sulfides; Selenides; Tellurides
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10Carboxylix acids; Neutral salts thereof
    • C10M2207/12Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
    • C10M2207/126Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2229/00Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
    • C10M2229/04Siloxanes with specific structure
    • C10M2229/041Siloxanes with specific structure containing aliphatic substituents
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/06Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/40Fibres of carbon
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2200/00Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/40Reduced friction resistance, lubricant properties; Sizing compositions

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

The invention relates to a lubricant for a carbon fiber sizing agent and a preparation method. The lubricant is prepared from polyacrylic acid modified nano lamella tungsten disulfide dispersion, a dispersing agent, silicon oil and higher aliphatic acid; the polyacrylic acid modified nano lamella tungsten disulfide dispersion is a dispersion obtained by modifying a nano lamella tungsten disulfide dispersion through polyacrylic acid. The preparation method comprises: firstly, preparing an aqueous solution of isopropyl alcohol, and then adding tungsten disulfide of which a microcrystalline size is smaller than 100 micrometers so as to form the dispersion; 2, after carrying out ultrasonic processing and standing, carrying out centrifugation to obtain a supernatant dispersion; 3, carrying out polyacrylic acid modification processing to obtain the polyacrylic acid modified nano lamella tungsten disulfide dispersion, and then mixing the polyacrylic acid modified nano lamella tungsten disulfide dispersion with the dispersing agent, the silicon oil and the higher aliphatic acid according to a matching principle. By the nano lamella tungsten disulfide dispersion prepared by using the polyacrylic acid to carry out modification, the lubricant can be used for preparing the sizing agent with special purposes and partially optimizes interface performance and macroscopic properties of fibers and a composite material of the fibers.

Description

A kind of lubricant for carbon fiber sizing agent and preparation method
Technical field
The present invention relates to technical field of composite materials, particularly relate to a kind of lubricant for carbon fiber sizing agent and preparation method, particularly a kind of polyacrylic acid modified nanoscale twins tungsten disulfide base lubricating agent for carbon fiber sizing agent.
Background technology
Carbon fiber has a series of excellent properties such as high specific strength, high ratio modulus and is widely used, but because of carbon fiber poor toughness, rub is poor, producing and in the course of processing, opening can be made unclear by snag broken end, easily produce the phenomenon such as lousiness and single wire fracture through mechanical friction so that it is intensity reduces.In fiber production process, can well solving the problems referred to above by starching, starching has become as a very important link in fiber production process.Development along with carbon fibre composite industry; the performance requirement of sizing agent is also improved constantly; it is gradually evolved in order to can enhanced carbon fiber composite material interface adhesion strength from simple protection carbon fiber; improve composite materials property, namely developed to functional type sizing agent by universal sizing agent.
Auxiliary agent in sizing agent can be good at improving sizing agent stability in use, lubricant is the one in auxiliary agent, the lubricating ability of material can be improved, effectively prevent from boning between fiber, and lubricant common at present has the unstability of composition and the shortcoming of poor compatibility, therefore research and develop the lubricant for preparing carbon fiber sizing agent with superperformance significant.
Summary of the invention
In view of above-mentioned analysis, it is desirable to provide a kind of lubricant for carbon fiber sizing agent and preparation method, this lubricant uses polyacrylic acid modified nanoscale twins tungsten disulfide dispersion liquid, specific use carbon fiber sizing agent composition can be effective as use, hence it is evident that improve lubrication and the processing characteristics of product.
The purpose of the present invention realizes mainly by techniques below scheme:
The present invention provides a kind of lubricant for carbon fiber sizing agent, including polyacrylic acid modified nanoscale twins tungsten disulfide dispersion liquid, dispersant, silicone oil and higher fatty acids;
Wherein said polyacrylic acid modified nanoscale twins tungsten disulfide dispersion liquid is nanoscale twins tungsten disulfide dispersion liquid dispersion liquid after polyacrylic acid modified;Wherein said polyacrylic acid modified mode is on the nanoscale twins tungsten disulfide surface being effectively peeled off by polyacrylic acid situ-formed graft.
Further, the weight portion of described polyacrylic acid modified nanoscale twins tungsten disulfide dispersion liquid is 1-32, and the weight portion of described dispersant is 1-5, and the weight portion of described silicone oil is 60-90, and the weight portion of described higher fatty acids is 1-3.
Further, described dispersant includes Solulan5, Solulan98, Solulan16, one or more in Solulan25 and Solulan97.
Further, described silicone oil includes unsubstituted polydimethylsiloxane and the polydimethylsiloxane replaced by the alkyl with 2-20 carbon atom;When 25 DEG C, the viscosity of the described polydimethylsiloxane replaced by the alkyl with 2-20 carbon atom is 2-100mm2/s。
Further, described higher fatty acids includes having one or more in the lauric acid of 12-24 carbon atom, myristic acid, lignin acid, Palmic acid, oleic acid.
The preparation method that another aspect of the present invention also provides for a kind of lubricant for carbon fiber sizing agent, being formed by the configuration of polyacrylic acid modified nanoscale twins tungsten disulfide dispersion liquid, the preparation method of described polyacrylic acid modified nanoscale twins tungsten disulfide dispersion liquid comprises the following steps:
1) configuring the mixed liquor of isopropyl alcohol and water, wherein isopropanol volume ratio in described mixed liquor is 30%-70%, adds the crystallite dimension tungsten disulfide less than 100 microns, forms the dispersion liquid that tungsten disulfide concentration is 10mg/mL;
2) by step 1) gained dispersion liquid carry out ultrasonic, stand after, centrifugal obtain upper strata dispersion liquid, sheet tungsten disulfide be efficiently peeled off, then remove bulky grain, unstripped part;
3) by step 2) gained dispersion liquid carries out polyacrylic acid modified process: adding acrylic acid and Ammonium persulfate., reaction obtains polyacrylic acid modified nanoscale twins tungsten disulfide dispersion liquid.
Further, above-mentioned preparation method also includes: weighs a certain amount of described polyacrylic acid modified nanoscale twins tungsten disulfide dispersion liquid and mixes at 40-80 DEG C with dispersant, silicone oil and higher fatty acids according to matching principle, uses ultrasonic disperse 1-6h.
Further, step 2) described ultrasonic power is 100W, sonication treatment time is 1-8h, and time of repose is 4-12h, and centrifugal rotational speed is 2000-6000rpm.
Further, step 3) the addition weight ratio of described acrylic acid and Ammonium persulfate. is 10:1-200:1, the weight ratio of acrylic acid and tungsten disulfide is 5:1-25:1, and temperature is 40-80 DEG C, and the response time is 4-96h.
Further, step 3) the addition weight ratio of described acrylic acid and Ammonium persulfate. is 100:1, the weight ratio of acrylic acid and tungsten disulfide is 10:1, and temperature is 60 DEG C, and the response time is 48h.
The present invention has the beneficial effect that:
Lubricant of the present invention can be effective as specific use carbon fiber sizing agent composition and use; the shortcoming that can solve the problem that the unstability of lubricant composition common at present and poor compatibility; it is obviously improved lubrication and the processing characteristics of product; the preparation method of the present invention is simple to operate; cost is low; can pass through in actual applications to change the proportioning of component in lubricant; it is applied to different types of sizing agent matrix; the preparation process of carbon fiber, glass fibre etc. can play a very good protection, the mechanical property of composite is increased simultaneously.The lubricant of this functional type can partly optimize fiber and composite material interface performance thereof and macro property.
Other features and advantages of the present invention will be set forth in the following description, and, becoming apparent from description of part, or understand by implementing the present invention.The purpose of the present invention and other advantages can be realized by structure specifically noted in the description write, claims and accompanying drawing and be obtained.
Accompanying drawing explanation
Accompanying drawing is only for illustrating the purpose of specific embodiment, and is not considered as limitation of the present invention, and in whole accompanying drawing, identical reference marks represents identical parts.
Fig. 1 is the stereoscan photograph of lubricant in embodiment 1;
Fig. 2 is the stereoscan photograph of lubricant in embodiment 3.
Detailed description of the invention
Specifically describing the preferred embodiments of the present invention below in conjunction with accompanying drawing, wherein, accompanying drawing constitutes the application part, and is used for together with embodiments of the present invention explaining principles of the invention.
Embodiment 1
The present embodiment provides a kind of polyacrylic acid modified nanoscale twins tungsten disulfide base lubricating agent for carbon fiber sizing agent and preparation method, and wherein preparation method comprises the following steps:
(1) mixed solution of configuration water and isopropanol, wherein the volume ratio of isopropanol is 30%, adds the tungsten disulfide of average crystallite size 50 microns, and the concentration of tungsten disulfide is 10mg/mL, is mixed to form dispersion liquid;
(2) dispersion liquid supersound process step (1) obtained, ultrasonic power is 100W, and ultrasonic time is 1 hour;Ultrasonic complete after stand 8 hours;Then centrifugal acquisition upper strata dispersion liquid under 4000rpm rotating speed;
(3) it is modified the dispersion liquid that step (2) obtains processing: add, at 40 DEG C, acrylic acid and the Ammonium persulfate. that weight ratio is 10:1, wherein acrylic acid is 10:1 with the weight ratio of tungsten disulfide, and reaction 96h obtains polyacrylic acid modified nanoscale twins tungsten disulfide dispersion liquid;
(4) at 70 DEG C, taking above-mentioned polyacrylic acid modified nanoscale twins tungsten disulfide dispersion liquid 210 grams with 20 grams of dispersant Solulan16,760 grams of viscositys is 5mm2The unsubstituted polydimethylsiloxane of/s and 10 grams have the lauric acid of 12-24 carbon atom ultrasonic disperse 6 hours under 100W ultrasonic power, it is thus achieved that lubricant.
The lubricant obtained in this example includes the lauric acid with 12-24 carbon atom of the polyacrylic acid modified nanoscale twins tungsten disulfide dispersion liquid of 21 weight portions, the dispersant Solulan16 of 2 weight portions, the unsubstituted polydimethylsiloxane of 76 weight portions and 1 weight portion.
The stereoscan photograph of this lubricant is as shown in Figure 1.
Embodiment 2
The present embodiment provides a kind of polyacrylic acid modified nanoscale twins tungsten disulfide base lubricating agent for carbon fiber sizing agent and preparation method, and wherein preparation method comprises the following steps:
(1) mixed solution of configuration water and isopropanol, wherein the volume ratio of isopropanol is 50%, adds the tungsten disulfide of average crystallite size 80 microns, and the concentration of tungsten disulfide is 10mg/mL, is mixed to form dispersion liquid;
(2) dispersion liquid supersound process step (1) obtained, ultrasonic power is 100W, and ultrasonic time is 8 hours;Ultrasonic complete after stand 4 hours;Then centrifugal acquisition upper strata dispersion liquid under 6000rpm rotating speed;
(3) it is modified the dispersion liquid that step (2) obtains processing: add, at 80 DEG C, acrylic acid and the Ammonium persulfate. that weight ratio is 80:1, wherein acrylic acid is 5:1 with the weight ratio of tungsten disulfide, and reaction 48h obtains polyacrylic acid modified nanoscale twins tungsten disulfide dispersion liquid;
(4) at 60 DEG C, taking above-mentioned polyacrylic acid modified nanoscale twins tungsten disulfide dispersion liquid 170 grams with 40 grams of dispersant Solulan25,770 grams of viscositys is 20mm2The polydimethylsiloxane and 20 grams with the alkyl replacement of 2-20 carbon atom of/s have the myristic acid of 12-24 carbon atom ultrasonic disperse 4 hours under 100W ultrasonic power, it is thus achieved that lubricant.
The lubricant obtained in this example includes the myristic acid with 12-24 carbon atom of the polydimethylsiloxane and 2 weight portions with the alkyl replacement of 2-20 carbon atom of the polyacrylic acid modified nanoscale twins tungsten disulfide dispersion liquid of 17 weight portions, the dispersant Solulan25 of 4 weight portions, 77 weight portions.
Embodiment 3
The present embodiment provides a kind of polyacrylic acid modified nanoscale twins tungsten disulfide base lubricating agent for carbon fiber sizing agent and preparation method, and wherein preparation method comprises the following steps:
(1) mixed solution of configuration water and isopropanol, wherein the volume ratio of isopropanol is 70%, adds the tungsten disulfide of average crystallite size 50 microns, and the concentration of tungsten disulfide is 10mg/mL, is mixed to form dispersion liquid;
(2) dispersion liquid supersound process step (1) obtained, ultrasonic power is 100W, and ultrasonic time is 8 hours;Ultrasonic complete after stand 8 hours;Then centrifugal acquisition upper strata dispersion liquid under 2000rpm rotating speed;
(3) it is modified the dispersion liquid that step (2) obtains processing: add, at 60 DEG C, acrylic acid and the Ammonium persulfate. that weight ratio is 200:1, wherein acrylic acid is 20:1 with the weight ratio of tungsten disulfide, and reaction 4h obtains polyacrylic acid modified nanoscale twins tungsten disulfide dispersion liquid;
(4) at 80 DEG C, taking above-mentioned polyacrylic acid modified nanoscale twins tungsten disulfide dispersion liquid 320 grams with 50 grams of dispersant Solulan5,600 grams of viscositys is 50mm2The unsubstituted polydimethylsiloxane of/s and 30 grams have the Palmic acid of 12-24 carbon atom ultrasonic disperse 3 hours under 100W ultrasonic power, it is thus achieved that lubricant.
The lubricant obtained in this example includes the Palmic acid with 12-24 carbon atom of the polyacrylic acid modified nanoscale twins tungsten disulfide dispersion liquid of 32 weight portions, the dispersant Solulan5 of 5 weight portions, the unsubstituted polydimethylsiloxane of 60 weight portions and 3 weight portions.
The stereoscan photograph of this lubricant is as shown in Figure 2.
Embodiment 4
The present embodiment provides a kind of polyacrylic acid modified nanoscale twins tungsten disulfide base lubricating agent for carbon fiber sizing agent and preparation method, and wherein preparation method comprises the following steps:
(1) mixed solution of configuration water and isopropanol, wherein the volume ratio of isopropanol is 60%, adds the tungsten disulfide of average crystallite size 80 microns, and the concentration of tungsten disulfide is 10mg/mL, is mixed to form dispersion liquid;
(2) dispersion liquid supersound process step (1) obtained, ultrasonic power is 100W, and ultrasonic time is 4 hours;Ultrasonic complete after stand 12 hours;Then centrifugal acquisition upper strata dispersion liquid under 5000rpm rotating speed;
(3) it is modified the dispersion liquid that step (2) obtains processing: add, at 80 DEG C, acrylic acid and the Ammonium persulfate. that weight ratio is 200:1, wherein acrylic acid is 15:1 with the weight ratio of tungsten disulfide, and reaction 4h obtains polyacrylic acid modified nanoscale twins tungsten disulfide dispersion liquid;
(4) at 50 DEG C, taking above-mentioned polyacrylic acid modified nanoscale twins tungsten disulfide dispersion liquid 20 grams with 50 grams of dispersant Solulan97,900 grams of viscositys is 70mm2The unsubstituted polydimethylsiloxane of/s and 30 grams have the oleic acid of 12-24 carbon atom ultrasonic disperse 3 hours under 100W ultrasonic power, it is thus achieved that lubricant.
The lubricant obtained in this example includes the oleic acid with 12-24 carbon atom of the polyacrylic acid modified nanoscale twins tungsten disulfide dispersion liquid of 2 weight portions, the dispersant Solulan97 of 5 weight portions, the unsubstituted polydimethylsiloxane of 90 weight portions and 3 weight portions.
The fibre abrasion number of times using lubricant coating in embodiment 1-4 is as shown in table 1, by table it can be seen that the lubricant of the present invention adds fiber abrasion resistance after polyacrylic acid modified, has good lubrication.
Table 1 uses the fibre abrasion number of times that the lubricant in embodiment 1-4 is coated with
Condition Abrasion resistance Amplitude of variation (%)
Blank (unmodified) 304 -
Embodiment 1 598 97
Embodiment 2 573 88
Embodiment 3 581 91
Embodiment 4 602 98
In sum, embodiments provide a kind of tungsten disulfide based softening agent of polyacrylic acid modified nanoscale twins for carbon fiber sizing agent and preparation method, this lubricant can be effective as specific use carbon fiber sizing agent composition and use, hence it is evident that improve lubrication and the processing characteristics of product.Can partly optimize fiber and composite material interface performance thereof and macro property;Preparation method is simple to operate, and cost is low.
The above; being only the present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, any those familiar with the art is in the technical scope that the invention discloses; the change that can readily occur in or replacement, all should be encompassed within protection scope of the present invention.

Claims (10)

1. the lubricant for carbon fiber sizing agent, it is characterised in that include polyacrylic acid modified nanoscale twins tungsten disulfide dispersion liquid, dispersant, silicone oil and higher fatty acids;
Wherein said polyacrylic acid modified nanoscale twins tungsten disulfide dispersion liquid is nanoscale twins tungsten disulfide dispersion liquid dispersion liquid after polyacrylic acid modified;Wherein said polyacrylic acid modified mode be by ammonium persulfate initiator by polyacrylic acid situ-formed graft on the nanoscale twins tungsten disulfide surface being effectively peeled off.
2. according to claim 1 for the lubricant of carbon fiber sizing agent, it is characterized in that, the weight portion of described polyacrylic acid modified nanoscale twins tungsten disulfide dispersion liquid is 1-32, the weight portion of described dispersant is 1-5, the weight portion of described silicone oil is 60-90, and the weight portion of described higher fatty acids is 1-3.
3. the lubricant for carbon fiber sizing agent according to claim 1 or claim 2, it is characterised in that described dispersant includes Solulan5, Solulan98, Solulan16, one or more in Solulan25 and Solulan97.
4. according to the arbitrary described lubricant for carbon fiber sizing agent of claim 1 or 2, it is characterised in that described silicone oil includes unsubstituted polydimethylsiloxane and the polydimethylsiloxane replaced by the alkyl with 2-20 carbon atom;When 25 DEG C, the viscosity of the described polydimethylsiloxane replaced by the alkyl with 2-20 carbon atom is 2-100mm2/s。
5. according to the arbitrary described lubricant for carbon fiber sizing agent of claim 1-2, it is characterised in that described higher fatty acids includes having one or more in the lauric acid of 12-24 carbon atom, myristic acid, lignin acid, Palmic acid, oleic acid.
6. one kind as arbitrary in claim 1-5 as described in for the preparation method of lubricant of carbon fiber sizing agent, it is characterized in that, being formed by the configuration of polyacrylic acid modified nanoscale twins tungsten disulfide dispersion liquid, the preparation method of described polyacrylic acid modified nanoscale twins tungsten disulfide dispersion liquid comprises the following steps:
1) configuring the mixed liquor of isopropyl alcohol and water, wherein isopropanol volume ratio in described mixed liquor is 30%-70%, adds the crystallite dimension tungsten disulfide less than 100 microns, forms the dispersion liquid that tungsten disulfide concentration is 10mg/mL;
2) by step 1) gained dispersion liquid carry out ultrasonic, stand after, centrifugal obtain upper strata dispersion liquid;
3) by step 2) gained dispersion liquid carries out polyacrylic acid modified process: adding acrylic acid and Ammonium persulfate., reaction obtains polyacrylic acid modified nanoscale twins tungsten disulfide dispersion liquid.
7. preparation method according to claim 6, it is characterized in that, also include: weigh a certain amount of described polyacrylic acid modified nanoscale twins tungsten disulfide dispersion liquid and mix at 40-80 DEG C with dispersant, silicone oil and higher fatty acids according to matching principle, use ultrasonic disperse 1-6h.
8. preparation method according to claim 6, it is characterised in that step 2) described ultrasonic power is 100W, sonication treatment time is 1-8h, and time of repose is 4-12h, and centrifugal rotational speed is 2000-6000rpm.
9. preparation method according to claim 6, it is characterized in that, step 3) the addition weight ratio of described acrylic acid and Ammonium persulfate. is 10:1-200:1, the weight ratio of acrylic acid and tungsten disulfide is 5:1-25:1, temperature is 40-80 DEG C, and the response time is 4-96h.
10. preparation method according to claim 6, it is characterised in that step 3) the addition weight ratio of described acrylic acid and Ammonium persulfate. is 100:1, the weight ratio of acrylic acid and tungsten disulfide is 10:1, and temperature is 60 DEG C, and the response time is 48h.
CN201610265465.9A 2016-04-26 2016-04-26 A kind of lubricant and preparation method for carbon fiber sizing agent Expired - Fee Related CN105803781B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108587729A (en) * 2018-04-13 2018-09-28 李立强 A kind of modified Nano tungsten disulfide lube oil additive and preparation method thereof
CN113999495A (en) * 2021-11-16 2022-02-01 嘉兴学院 Carbon fiber/epoxy composite material with integrated structure and function and preparation method thereof

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