CN107385919A - The coating material being modified for pbo fiber surface；Surface is modified pbo fiber, preparation and its application - Google Patents
The coating material being modified for pbo fiber surface；Surface is modified pbo fiber, preparation and its application Download PDFInfo
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- CN107385919A CN107385919A CN201710550495.9A CN201710550495A CN107385919A CN 107385919 A CN107385919 A CN 107385919A CN 201710550495 A CN201710550495 A CN 201710550495A CN 107385919 A CN107385919 A CN 107385919A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/55—Epoxy resins
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms
- D06M13/51—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond
- D06M13/513—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond with at least one carbon-silicon bond
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/25—Resistance to light or sun, i.e. protection of the textile itself as well as UV shielding materials or treatment compositions therefor; Anti-yellowing treatments
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Abstract
The invention discloses a kind of coating material being modified for pbo fiber surface, including UV absorbers, 17 fluorine decyl trimethoxy silanes, cycloaliphatic epoxy resin, curing agent and organic solvent.Pbo fiber is modified present invention also offers a kind of method that surface is modified pbo fiber, and by surface made from described method.In addition, described surface is modified pbo fiber for weaving, twisting obtained extra-high voltage electrified power tool soft material present invention also offers a kind of.Pbo fiber after processing overcomes the shortcomings that it is not ageing-resistant, and has good insulating properties, can be applied to the insulating cord of extra-high voltage electrified operation.
Description
Technical field
The present invention relates to a kind of new extra-high voltage electrified power tool soft material, belong to functional polymer composite
Field.
Background technology
UHV transmission line has that voltage height, induced electricity field strength, operation maintenance difficulty are big, circuit tower height, wire tension
Greatly, gold utensil and the features such as big insulator sizes, the size of corresponding live line tool is big, and weight is also big.Therefore, livewire work
There is the performances such as high tensile strength, insulating properties and being unlikely to deform property with rope requirements.At present, in the market extra-high voltage electrified operation
Insulation ropes is mainly formed by silk or synthetic fibers braiding, twisting.The protection against the tide of existing silk rope and synthetic fibers
Poor-performing, the damp-proof treatment for being primarily due to existing silk rope and synthetic fibers carry out waterproof using in fiber surface
Agent coats, and after certain number is washed, the humidity resistance of fiber can significantly decline, and service life can also shorten.With extra-high
The development of pressure transmission line, it is existing, it is necessary to which the volume and weight of the gold utensil of lifting is consequently increased during livewire work
Silk rope and Sythetic fiber rope can not meet the needs of livewire work in tensile strength.Therefore, humidity resistance is developed more to hold
Long, stably, the work of the higher new livewire work insulation ropes material of intensity, it is very urgent.
Pbo fiber is the synthetic fibers of a kind of high intensity, high-modulus, low-density, and its heat-resisting, chemical resistance and tension resist
Press performance all very excellent, be described as " super fiber of 21 century ".Pbo fiber all can be very good full in intensity, density
The requirement of sufficient extra-high voltage electrified work operations.But pbo fiber easily aging under light illumination, after ultraviolet light, fibre strength
Can significantly it decline.Therefore the ultraviolet-resistant performance for improving pbo fiber is the key that pbo fiber is applied to extra-high voltage electrified operation.
Publication No. CN102277726A Chinese patent literature discloses a kind of polyparaphenylene's Benzo-dioxazole resistant fiber
The method of ultraviolet light and aging, is concretely comprised the following steps：1) in coupling agent and the mixed solution and dripping ethanol of acid medium, stirring, obtain
To solution A；2) accelerator is dissolved in after deionized water and ethanol is added dropwise, be uniformly mixed, add precipitating reagent, be then added dropwise acid
Medium makes precipitation all dissolve, and obtains solution B；3) solution A for obtaining step 1) is added drop-wise in the solution B that step 2) obtains,
After completion of dropwise addition, 0.5~3h of magnetic agitation, the polyethylene glycol dispersant that relative molecular mass is 200~3500 is then added dropwise, after
10~60min of continuous stirring, has obtained the compound hydrosol dressing liquids of TiO2-ZnO of stable and uniform；4) step 3) is obtained
The compound hydrosol dressing liquids of TiO2-ZnO are warming up to 50~80 DEG C, and pbo fiber is immersed into the TiO2- under supersonic oscillations auxiliary
In the compound hydrosol dressing liquids of ZnO, taken out after vibrating 0.5~1h, after making pbo fiber dry tack free, then be placed in 100~150 DEG C
Vacuum drying oven in dry 1~5h, pbo fiber surface formed 0.02~0.05mm uniform ageing resistance by ultraviolet light gel apply
Layer.Technical scheme operation is complex, and pbo fiber surface is smooth, strong inert, and gained ageing resistance by ultraviolet light gel coat is again
It is relatively thin easily damaged, and coating water-wash resistance is poor.
In addition, Publication No. CN102691207A Chinese patent literature, which discloses one kind, has ultraviolet resistance and wet-heat resisting concurrently
The preparation method of the pbo fiber of aging, is concretely comprised the following steps：(1) Ludox predecessor, ethanol (EtOH) and hydrochloric acid are taken respectively
(HCl) mixing is heated under the conditions of 25~30 DEG C, hydrophobic silicone is added after well mixed, continues under the conditions of 25~30 DEG C
3~5h is reacted, obtains uniform and stable organic silicon hydrophobic colloidal sol；(2) the organic silicon hydrophobic colloidal sol that step (1) obtains is warming up to
40~80 DEG C, UV absorbers are added, and by UV absorbers and organic silicon hydrophobic colloidal sol under supersonic oscillations auxiliary
Well mixed, duration of oscillation is 0.5~2h, is subsequently cooled to room temperature, and adds curing catalysts, is obtained uniform and stable organic
Si hydrophobic colloidal sol composite finishing liquid；(3) pbo fiber is immersed in the organic silicon hydrophobic colloidal sol composite finishing liquid that step (2) obtains
In, the time is 0.5~2h, then takes out fiber, at room temperature 12~48h of naturally dry, is placed in drying box at 80~100 DEG C
2~5h of crosslinking curing, obtain the pbo fiber for having uniform hydrophobic coating to surface.Technical scheme operation is complex, and ultraviolet light is inhaled
Receiving agent, solubility is minimum in aqueous, therefore the content of contained UV absorbers is considerably less in the pbo fiber hydrophobic coating,
The ultraviolet-resistant performance lifting of fiber is smaller；If UV absorbers too high levels, UV absorbers particle is difficult hydrophobic
It is uniformly distributed in property coating, does not reach the effect for increasing substantially fiber ultraviolet resistance.
The content of the invention
For pbo fiber under ultraviolet light, fibre strength declines very fast so that the service life of pbo fiber
Short, this high shortcoming of cost, the invention discloses a kind of coating material applied to pbo fiber surface, it is intended to extends pbo fiber
Service life, lifted pbo fiber breaking strength retention.
Second purpose of the invention is, there is provided what the surface that the coating material described in a kind of use handles to obtain was modified
The preparation method of pbo fiber and the surface modified fibre.
3rd purpose of the invention is, there is provided the pbo fiber that a kind of obtained surface is modified is preparing extra-high voltage electrified
Application in power tool.
A kind of coating material that pbo fiber is modified for surface, including UV absorbers, 17 fluorine decyl trimethoxies
Silane, cycloaliphatic epoxy resin, curing agent and organic solvent.
The surface of pbo fiber is smooth, and chemical inertness is strong, and the difficulty that coating is formed on its surface is big.It can be answered to explore one kind
For the coating material of pbo fiber, present inventor has performed numerous studies exploration.Found by furtheing investigate, pass through ultraviolet light
The collaboration of absorbent, 17 fluorine decyl trimethoxy silanes, cycloaliphatic epoxy resin and other components, can help to collaboration and carries
The service life of pbo fiber is risen, lifts pbo fiber breaking strength retention.
The present inventors have additionally discovered that the percentage by weight of each component is controlled in suitable scope, help further to carry
The synergy of each component is risen, and then further extends the service life of pbo fiber, lifts pbo fiber breaking strength retention.
Found by numerous studies, preferably, on the basis of coating material weight, the percetage by weight of each component is：
Preferably, described UV absorbers are UV absorbers UV-284, UV-328, UV-360, UV-531
At least one of.
Further preferably, described UV absorbers are UV absorbers UV-328.Found, used by studying
UV-328, and the synergy of other components are more excellent, and effect is more excellent.
The present invention passes through described UV absorbers UV-328,17 fluorine decyl trimethoxy silanes and aliphatic ring
The collaboration of oxygen tree fat, make the pbo fiber after modification that there is excellent ultraviolet-resistant performance, at the same have high hydrophobic performance with
And weatherability.
Preferably, in described coating material, the mass percent shared by UV absorbers is 2.2~4.5%.
Preferably, the epoxide number of described cycloaliphatic epoxy resin is 0.4~0.5；More preferably 0.45~
0.5。
Preferably, the viscosity of described cycloaliphatic epoxy resin is 500-5000mpa.s；More preferably 500-
1000mpa.s。
Preferably, in described coating material, mass percent shared by cycloaliphatic epoxy resin for 13.0~
13.7%；Still more preferably it is 13.3~13.7%.
Preferably, described curing agent is oligomeric polyamide.
The molecular weight of described oligomeric polyamide is preferably 200~651.
Further preferably, described curing agent is in polyamide 200, polyamide 400, polyamide 6 50, polyamide 6 51
It is at least one.
Further preferably, in described coating material, the mass percent shared by curing agent is 2~2.45%.
In theory, can dissolve the solvent of each material of the present invention can apply into the present invention.
Preferably, described organic solvent be ethyl acetate, butyl acetate, isopropyl acetate, in isopropanol at least
It is a kind of.
In the present invention, preferably, 17 fluorine decyl trimethoxy silanes are diluted using solvent in advance, described solvent is
Isopropanol.
Coating material of the present invention, in storing process, curing agent and other components are stored separately.
For example, described coating material includes component A and B component；Wherein, component A includes UV absorbers, 17 fluorine
Decyl trimethoxy silane, cycloaliphatic epoxy resin and organic solvent, described B component are curing agent and organic solvent.
Present invention also offers a kind of method that surface is modified pbo fiber, pending pbo fiber through coupling agent treatment,
Carry out surface active；Pbo fiber after activation is immersed in described coating material；By the pbo fiber solidification after immersion, shape
Into coating, produce described surface and be modified pbo fiber.
Preferably, immersion process is carried out under ultrasonic wave added.
Preferably, the temperature of immersion process is 50~80 DEG C.
Preferably, soak time is 10~30min.
In the present invention, preferably, repeating the immersion process 3~5 times.
Preferably, solidification temperature is 60~80 DEG C.It is solid at the lower temperature by coating material of the present invention
Change, help to be further ensured that the performance of the material after handling.
Preparation method of the present invention, the pending pbo fiber cleaning (cleaning) of preferred pair and surface active, cleaning and activation
Means can use existing conventional method.
Preferably, described coupling agent is at least one of KH-550, KH-560, KH-570, KH-590.
Present invention additionally comprises surface made from a kind of methods described to be modified pbo fiber, and the surface is modified the surface of pbo fiber
It is coated with ultraviolet resistant.
Surface of the present invention is modified in pbo fiber, and the adhesion of coating and pbo fiber is strong, has excellent performance.
Present invention also offers the application that a kind of described surface is modified pbo fiber, uses it for weaving, twists obtained spy
High-voltage hot-line work instrument soft material.
In the present invention, extra-high voltage electrified power tool material made from pbo fiber is modified using described surface, except with
Outside excellent insulating properties, also with excellent, lasting humidity resistance, and the performance such as stability, intensity is also obviously improved.
In the present invention, described extra-high voltage electrified power tool soft material is alternatively to be prepared using following methods：Will not
The pbo fiber of processing weaves, twisted into pending extra-high voltage electrified power tool soft material in advance, then will be pending
The leaching of extra-high voltage electrified power tool soft material warp described coupling agent surface active and coating material of the present invention
After bubble, curing schedule, the extra-high voltage electrified power tool soft material that surface is modified is made.
Present invention also offers a kind of preferable extra-high voltage electrified work operations soft material, the material includes following step
Suddenly：
Step (1)：Surface activation process will be carried out to fiber after pbo fiber removing surface totally and with coupling agent；
Step (2)：Pbo fiber after step (1) is handled is immersed containing cycloaliphatic epoxy resin, 17 fluorine decyls three
In the mixed solution of the aqueous isopropanol of methoxy silane, organic solvent and curing agent, soak time is 10~30min, immersion
After drying, repeat immersion and dry 3~5 times, be heating and curing；
In described mixed solution, the mass percent of UV absorbers is 2.2~4.5%；17 fluorine decyl front threes
The mass percent of TMOS is 0.40~0.50%；The mass percent of cycloaliphatic epoxy resin is 13.0~13.7%；
The mass percent of curing agent is 2~3%；Surplus is organic solvent.
Compared with the prior art, beneficial effects of the present invention：
After ultraviolet light 400h, the tensile strength of the pbo fiber insulating cord after processing is significantly larger than undressed
Pbo fiber rope, greatly extend the service life of pbo fiber rope.It is and exhausted with traditional extra-high voltage electrified power tool
Edge rope material is compared, and pbo fiber is far superior to traditional silk and other synthesis in tensile strength, insulating hydrophobic etc.
Fiber.Pbo fiber in the present invention is applied to extra-high voltage electrified field of operation, has tempting development prospect.
In the present invention, it is only necessary to 17 micro fluorine decyl trimethoxy silanes, you can reach unexpectedly collaboration lifting
Fiber retention, improve hydrophobicity and other effects.Research shows that the pbo fiber after processing is after accelerated ageing in 400 hours, fiber
Strength retention ratio improves nearly 200%；In addition, the hydrophobicity of pbo fiber is also greatly improved, its water contact angle is reachable
130 °~140 °.After the coating treatment, its service life and water resistance greatly increase pbo fiber.
Brief description of the drawings
Fig. 1 is the contact angle figure that embodiment 1 handles obtained pbo fiber and water.
Fig. 2 is the comparison figure of different sample P BO fibrous fracture strength retention ratios.Wherein, sample 1 is unprocessed PBO fine
Dimension；Sample 2 is the pbo fiber that comparative example 1 is prepared；Sample 3 is the pbo fiber that embodiment 1 is prepared；Sample 4 is pair
The pbo fiber that ratio 2 is prepared；Sample 4 is the pbo fiber that comparative example 3 is prepared.
Embodiment
Specific examples below is intended to further illustrate present invention, the scope for the protection that is not intended to limit the present invention.
The strength retention ratio of following examples and comparative example, it is to accelerate always at ultraviolet 400 hours unless specified or limited otherwise
Strength retention ratio after change.Method of testing refers to existing method.
The instrument of ultraviolet accelerated photo-ageing is xenon lamp weather-resistant test box (model SN-500, the limited public affairs of upper Hailin frequency science and technology
Department), experiment condition is irradiation intensity 1100W/m2, 54 DEG C of temperature, relative humidity 65%.
Embodiment 1
1) pbo fiber is soaked to 24h in alcoholic solution, is cleaned and dried with distilled water；It is 5% with containing mass fraction
Coupling agent KH-560 ethanol solution sonic oscillation 10min is carried out to pbo fiber, solidify 1h at 120 DEG C；
2) the fluorine decyl trimethoxy silanes of 1g 17 are mixed with 33.33g isopropanols and is ultrasonically treated 1~2h, obtain 3wt%'s
The aqueous isopropanol of 17 fluorine decyl trimethoxy silanes；
3) 3g cycloaliphatic epoxy resins (JEW-0114, epoxide number 0.478, Changshu Jia Fa Chemical Co., Ltd.s) are dissolved in
In 15g ethyl acetate solutions, it is stirred by ultrasonic to cycloaliphatic epoxy resin and is completely dissolved in the solution of ethyl acetate；0.5g is ultraviolet
Aqueous isopropanol (the 17 fluorine decyls three for the 17 fluorine decyl trimethoxy silanes that light absorber UV-328 and 3g step 2) obtains
Methoxy silane 0.09g, isopropanol 2.91g) uniformly it is mixed in the ethyl acetate solution of cycloaliphatic epoxy resin, add
0.54g curing agent Versamid 650, it is stirred by ultrasonic to uniform, no precipitation.The pbo fiber that step 1) processing obtains is soaked
In the solution, the ultrasonic vibration 10min at a temperature of 50 DEG C, it is solidification 3h to take out the time that fiber reacts at a temperature of 65 DEG C to bubble.
After the ultraviolet accelerated photo-ageings of 400h, the strength retention ratio of pbo fiber is improved to 60.2% by 21.4%.PBO is fine
The water contact angle of dimension is 139.6 °, and fiber water contact angle is held essentially constant after washing 50 times.
Embodiment 2
1) pbo fiber is soaked to 24h in alcoholic solution, is cleaned and dried with distilled water；It is 5% with containing mass fraction
Coupling agent KH-560 ethanol solution sonic oscillation 10min is carried out to pbo fiber, solidify 1h at 120 DEG C；
2) the 17 fluorine decyl trimethoxy silanes that quality is 1g are mixed with 33.33g isopropanols and are ultrasonically treated 1~2h,
Obtain the aqueous isopropanol of 3wt% 17 fluorine decyl trimethoxy silanes；
3) 3g cycloaliphatic epoxy resins (JEW-0114, epoxide number 0.478, Changshu Jia Fa Chemical Co., Ltd.s) are dissolved in
In 15g ethyl acetate solutions, it is stirred by ultrasonic to cycloaliphatic epoxy resin and is completely dissolved in the solution of ethyl acetate；By 1g ultraviolet lights
Aqueous isopropanol (the 17 fluorine decyl front threes for the 17 fluorine decyl trimethoxy silanes that absorbent UV-328 and 3g step 2) obtains
TMOS 0.09g, isopropanol 2.91g) uniformly it is mixed in the ethyl acetate solution of cycloaliphatic epoxy resin, add
0.45g curing agent polyamide 6 50, it is stirred by ultrasonic to uniform, no precipitation.The pbo fiber that step 1) processing obtains is immersed in molten
In liquid, the ultrasonic vibration 10min at a temperature of 50 DEG C, it is solidification 3h to take out the time that fiber reacts at a temperature of 65 DEG C.
The pbo fiber strength retention ratio that the present embodiment is prepared is 54.2%, and contact angle is 130.1 °, through washing 50 times
Fiber water contact angle is held essentially constant afterwards.
Comparative example 1
This comparative example is inquired into and is not added 17 fluorine decyl trimethoxy silanes and ultraviolet absorber, specific as follows：
1) pbo fiber is soaked to 24h in alcoholic solution, is cleaned and dried with distilled water；It is 5% with containing mass fraction
Coupling agent KH-560 ethanol solution sonic oscillation 10min is carried out to pbo fiber, solidify 1h at 120 DEG C；
2) 3g cycloaliphatic epoxy resins (JEW-0114, epoxide number 0.478, Changshu Jia Fa Chemical Co., Ltd.s) are dissolved in
In 15g ethyl acetate solutions, it is stirred by ultrasonic to cycloaliphatic epoxy resin and is completely dissolved in the solution of ethyl acetate；Add
0.52g curing agent polyamide 6 50, it is stirred by ultrasonic to uniform, no precipitation.The pbo fiber that step 1) processing obtains is immersed in molten
In liquid, the ultrasonic vibration 10min at a temperature of 50 DEG C, it is solidification 3h to take out the time that fiber reacts at a temperature of 65 DEG C.
The pbo fiber strength retention ratio that this comparative example is prepared is 25.7%, and contact angle is 62.1 °.
Comparative example 2
This comparative example is inquired into and is not added 17 fluorine decyl trimethoxy silanes, specific as follows：
1) pbo fiber is soaked to 24h in alcoholic solution, is cleaned and dried with distilled water；It is 5% with containing mass fraction
Coupling agent KH-560 ethanol solution sonic oscillation 10min is carried out to pbo fiber, solidify 1h at 120 DEG C；
2) 3g cycloaliphatic epoxy resins (JEW-0114, epoxide number 0.478, Changshu Jia Fa Chemical Co., Ltd.s) are dissolved in
In 15g ethyl acetate solutions, ultrasonic agitation is to there is cycloaliphatic epoxy resin to be completely dissolved in the solution of ethyl acetate；0.5g is purple
Outer light absorber UV-328 is uniformly mixed in the ethyl acetate solution of cycloaliphatic epoxy resin, is added 0.52g curing agent and is gathered
Acid amides 650, it is stirred by ultrasonic to uniform, no precipitation.The pbo fiber that step 1) processing obtains is soaked in the solution, in 50 DEG C of temperature
The lower ultrasonic vibration 10min of degree, it is solidification 3h to take out the time that fiber reacts at a temperature of 65 DEG C.
The pbo fiber strength retention ratio that this comparative example is prepared is 44.4%, and contact angle is 128.1 °.
Comparative example 3
This comparative example is inquired into and does not add ultraviolet absorber, specific as follows：
1) pbo fiber is soaked to 24h in alcoholic solution, is cleaned and dried with distilled water；It is 5% with containing mass fraction
Coupling agent KH-560 ethanol solution sonic oscillation 10min is carried out to pbo fiber, solidify 1h at 120 DEG C；
2) the fluorine decyl trimethoxy silanes of 1g 17 are mixed with 33.33g isopropanols and is ultrasonically treated 1~2h；Obtain 3wt%'s
The aqueous isopropanol of 17 fluorine decyl trimethoxy silanes；
3) 3g cycloaliphatic epoxy resins (JEW-0114, epoxide number 0.478, Changshu Jia Fa Chemical Co., Ltd.s) are dissolved in
In 15g ethyl acetate solutions, it is stirred by ultrasonic to cycloaliphatic epoxy resin and is completely dissolved in the solution of ethyl acetate；By 3g steps 2)
17 obtained fluorine decyl trimethoxy silanes are uniformly mixed in the ethyl acetate solution of cycloaliphatic epoxy resin, are added
0.52g curing agent polyamide 6 50, it is stirred by ultrasonic to uniform, no precipitation.The pbo fiber that step 1) processing obtains is immersed in molten
In liquid, the ultrasonic vibration 10min at a temperature of 50 DEG C, it is solidification 3h to take out the time that fiber reacts at a temperature of 65 DEG C.
The pbo fiber strength retention ratio that this comparative example is prepared is 21.6%, and contact angle is 88.9 °.
Comparative example 4
This comparative example inquires into UV absorbers dosage, specific as follows：
1) pbo fiber is soaked to 24h in alcoholic solution, is cleaned and dried with distilled water；It is 5% with containing mass fraction
Coupling agent KH-560 ethanol solution sonic oscillation 10min is carried out to pbo fiber, solidify 1h at 120 DEG C；
2) the fluorine decyl trimethoxy silanes of 1g 17 are mixed with 33.33g isopropanols and is ultrasonically treated 1~2h；Obtain 3wt%'s
The aqueous isopropanol of 17 fluorine decyl trimethoxy silanes；
3) 3g cycloaliphatic epoxy resins (JEW-0114, epoxide number 0.478, Changshu Jia Fa Chemical Co., Ltd.s) are dissolved in
In 15g ethyl acetate solutions, it is stirred by ultrasonic to cycloaliphatic epoxy resin and is completely dissolved in the solution of ethyl acetate；1.1g is ultraviolet
The aqueous isopropanol for the 17 fluorine decyl trimethoxy silanes that light absorber UV-328 and 3g step 2) obtains uniformly is mixed in fat
In the ethyl acetate solution of ring race epoxy resin, 0.45g curing agent polyamide 6 50 is added, is stirred by ultrasonic to uniform, without heavy
Form sediment.The pbo fiber immersion that step 1) processing is obtained in the solution, the ultrasonic vibration 10min at a temperature of 50 DEG C, is taken out fiber and existed
The time reacted at a temperature of 65 DEG C is solidification 3h.
This comparative example UV-328,4.8%, the pbo fiber strength retention ratio being prepared is 32.6%, and contact angle is
120.0°。
Comparative example 5
This comparative example is inquired into not using cycloaliphatic epoxy resin as coated substrate, specific as follows：
1) pbo fiber is soaked to 24h in alcoholic solution, is cleaned and dried with distilled water；It is 5% with containing mass fraction
Coupling agent KH-560 ethanol solution sonic oscillation 10min is carried out to pbo fiber, solidify 1h at 120 DEG C；
2) by fluorine decyl trimethoxy silane aqueous isopropanol (17 fluorine of 0.5g UV absorbers UV-328 and 3g 17
The mass percent of decyl trimethoxy silane adds 0.45g curing agent 3%) to be uniformly mixed in ethyl acetate solution
Polyamide, it is stirred by ultrasonic to uniform, no precipitation.By pbo fiber immersion in the solution, the ultrasonic vibration 10min at a temperature of 50 DEG C,
It is solidification 3h to take out the time that fiber reacts at a temperature of 65 DEG C.
The pbo fiber strength retention ratio that this comparative example is prepared is 19.2%, and contact angle is 106.9 °.
Comparative example 6
This comparative example is inquired into is used as coated substrate using general epoxy resin (bisphenol A epoxide resin), specific as follows：
1) pbo fiber is soaked to 24h in alcoholic solution, is cleaned and dried with distilled water；It is 5% with containing mass fraction
Coupling agent KH-560 ethanol solution sonic oscillation 10min is carried out to pbo fiber, solidify 1h at 120 DEG C；
2) the fluorine decyl trimethoxy silanes of 1g 17 are mixed with 33.33g isopropanols and is ultrasonically treated 1~2h；Obtain 3wt%'s
The aqueous isopropanol of 17 fluorine decyl trimethoxy silanes；
3) 3g bisphenol A epoxide resins are dissolved in 15g ethyl acetate solutions, be stirred by ultrasonic complete to cycloaliphatic epoxy resin
It is dissolved in the solution of ethyl acetate；The 17 fluorine decyl trimethoxies that 0.5g UV absorbers UV-328 and 3g steps 2) are obtained
The aqueous isopropanol (17 fluorine decyl trimethoxy silane 0.09g, isopropanol 2.91g) of base silane is uniformly mixed in aliphatic ring
In the ethyl acetate solution of oxygen tree fat, 0.54g curing agent Versamid 650 is added, is stirred by ultrasonic to uniform, without heavy
Form sediment.The pbo fiber immersion that step 1) processing is obtained in the solution, the ultrasonic vibration 10min at a temperature of 50 DEG C, is taken out fiber and existed
The time reacted at a temperature of 65 DEG C is solidification 3h.
The pbo fiber strength retention ratio that this comparative example is prepared is 40.6%, and contact angle is 127.7 °.
Claims (10)
1. a kind of coating material being modified for pbo fiber surface, it is characterised in that including UV absorbers, the 17 fluorine last of the ten Heavenly stems
Base trimethoxy silane, cycloaliphatic epoxy resin, curing agent and organic solvent.
2. the coating material according to claim 1 being modified for pbo fiber surface, it is characterised in that with coating material
On the basis of weight, the percetage by weight of each component is：
3. the coating material according to claim 1 being modified for pbo fiber surface, it is characterised in that described is ultraviolet
The species of light absorber is at least one of UV-284, UV-328, UV-360, UV-531.
4. the coating material according to claim 1 being modified for pbo fiber surface, it is characterised in that
The epoxide number of described cycloaliphatic epoxy resin is 0.4~0.5；Viscosity is 500-5000mpa.s；
Described organic solvent is at least one of ethyl acetate, butyl acetate, isopropyl acetate, isopropanol；
Described curing agent is oligomeric polyamide；Molecular weight is 200~651.
5. a kind of method that surface is modified pbo fiber, it is characterised in that pending pbo fiber carries out table through coupling agent treatment
Face activates；Pbo fiber after activation is immersed in the coating material described in any one of Claims 1 to 4；After immersion
Pbo fiber solidification, coating is formed, produce described surface and be modified pbo fiber.
6. the method that surface according to claim 5 is modified pbo fiber, it is characterised in that described coupling agent is KH-
550th, at least one of KH-560, KH-570, KH-590.
7. the method that surface according to claim 5 is modified pbo fiber, it is characterised in that immersion process is in ultrasonic wave added
Lower progress；The temperature of immersion process is 50~80 DEG C；Soak time is 10~30min.
8. the method that surface according to claim 5 is modified pbo fiber, it is characterised in that solidification temperature is 60~80 DEG C；
Time is 2~5h.
9. surface is modified pbo fiber made from a kind of any one of claim 5~8 methods described, it is characterised in that the surface changes
The Surface coating of property pbo fiber has ultraviolet resistant.
10. the surface described in a kind of claim 9 is modified the application of pbo fiber, it is characterised in that uses it for weaving, twists
Extra-high voltage electrified power tool soft material is made.
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