CN103881295B - A kind of modified by nano particles carbon cloth strengthens the preparation method of Wet-type friction material - Google Patents
A kind of modified by nano particles carbon cloth strengthens the preparation method of Wet-type friction material Download PDFInfo
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- 239000004744 fabric Substances 0.000 title claims abstract description 90
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 87
- 239000002783 friction material Substances 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000002105 nanoparticle Substances 0.000 title claims abstract description 16
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 28
- 238000000151 deposition Methods 0.000 claims abstract description 13
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 12
- 239000005011 phenolic resin Substances 0.000 claims abstract description 12
- 238000011282 treatment Methods 0.000 claims abstract description 12
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical class [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000002245 particle Substances 0.000 claims abstract description 10
- 102000004895 Lipoproteins Human genes 0.000 claims abstract description 5
- 108090001030 Lipoproteins Proteins 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 18
- 238000007731 hot pressing Methods 0.000 claims description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000008367 deionised water Substances 0.000 claims description 12
- 229910021641 deionized water Inorganic materials 0.000 claims description 12
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 10
- 239000010703 silicon Substances 0.000 claims description 10
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 8
- 229910017604 nitric acid Inorganic materials 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 6
- 229920000459 Nitrile rubber Polymers 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 4
- 244000226021 Anacardium occidentale Species 0.000 claims description 3
- 229920000180 alkyd Polymers 0.000 claims description 3
- 229910052796 boron Inorganic materials 0.000 claims description 3
- -1 boron modified phenolic resin Chemical class 0.000 claims description 3
- 235000020226 cashew nut Nutrition 0.000 claims description 3
- 239000010466 nut oil Substances 0.000 claims description 3
- 238000006424 Flood reaction Methods 0.000 claims description 2
- 238000007598 dipping method Methods 0.000 claims description 2
- 229960004756 ethanol Drugs 0.000 claims description 2
- 238000002203 pretreatment Methods 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 230000004044 response Effects 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 abstract description 8
- 229910004298 SiO 2 Inorganic materials 0.000 abstract description 5
- 229920005989 resin Polymers 0.000 abstract description 5
- 239000011347 resin Substances 0.000 abstract description 5
- 229920000642 polymer Polymers 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 2
- 230000008021 deposition Effects 0.000 abstract description 2
- 230000007935 neutral effect Effects 0.000 abstract description 2
- 229910052760 oxygen Inorganic materials 0.000 abstract description 2
- 239000001301 oxygen Substances 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 238000005486 sulfidation Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 13
- 239000002131 composite material Substances 0.000 description 9
- 229920000049 Carbon (fiber) Polymers 0.000 description 8
- 238000013019 agitation Methods 0.000 description 8
- 239000004917 carbon fiber Substances 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 239000008187 granular material Substances 0.000 description 7
- 150000001721 carbon Chemical class 0.000 description 4
- 239000007777 multifunctional material Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000004663 powder metallurgy Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229930185605 Bisphenol Natural products 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- NSOXQYCFHDMMGV-UHFFFAOYSA-N Tetrakis(2-hydroxypropyl)ethylenediamine Chemical compound CC(O)CN(CC(C)O)CCN(CC(C)O)CC(C)O NSOXQYCFHDMMGV-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229920003987 resole Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Abstract
The invention provides a kind of modified by nano particles carbon cloth and strengthen the preparation method of Wet-type friction material, with carbon cloth and modified phenolic resins for raw material, carbon cloth is processed under hydrothermal conditions, then adopts microwave-hydrothermal method depositing nano SiO
2particle, carbon cloth after process is immersed 8-10 minute in modified phenolic resin lipoprotein solution, it is hot-forming that taking-up nature dries rear employing vulcanizer, and the present invention, by under hydrothermal conditions, adopts microwave-hydrothermal method at carbon cloth surfaces depositing nano SiO to carbon cloth surfaces after carrying out oxide treatment
2particle, it has efficiently, the carbon cloth surfaces oxygen level advantages of higher of all even preparation of nanoparticle deposition, substantially improve cohesive strength and the tensile strength of carbon cloth and resin matrix, thus improve sulfidation neutral line polymer forms net high-polymer homogeneity by crosslinked action, make it have more excellent self-lubricating property, physical strength and tribological property.
Description
Technical field
The invention belongs to friction material field, relate to the preparation method that a kind of modified by nano particles carbon cloth strengthens Wet-type friction material.
Background technology
Wet-type friction material refers to the friction materials worked in the lubricant medium such as lubricating oil, lubricating grease, for the torsion pass braking function of implement device.Be mainly used in automatic gearbox, differential mechanism, synchronizer, torque management device and other humid clutch.
Document 1 " publication number is the Chinese patent of CN101671537A " discloses a kind of carbon cloth composite friction material and is manufacturing the application on vehicle powder metallurgy synchronizer tooth ring friction layer, it is using carbon cloth as strongthener, do caking agent with the mixed solution of FB fire resistant resin and bisphenol epoxy, add various friction materials and make carbon cloth composite friction material; Make the matrix of automobile synchronizer tooth ring with powder metallurgy, carbon cloth composite friction material is set on the surface of matrix and makes friction layer, manufacture vehicle powder metallurgy synchronizer tooth ring.Document 2 " publication number is the Chinese patent of CN102757621A " discloses a kind of Wet-type composite friction material and preparation method thereof, and the component of friction materials comprises: as the carbon fiber sheet of material skeleton, thermosetting resin, solidifying agent and frictional property regulator.Preparation method is for carrying out ultrasonic wave dispersion using acetone or dehydrated alcohol as solvent, resol, quadrol and ceramic particle mixed once, make mix, the steeping fluid of modest viscosity, then impregnated carbon cloth, carries out hot-press solidifying and subsequent cure thermal treatment to carbon fiber sheet after drying.But its carbon fiber sheet used is without any process, and its carbon fiber surface lacks active function groups, surface energy is low, and surface inertness is large, and interfacial bonding property between matrix resin is poor, there is more defect in interface, limits the performance of the excellent properties of carbon fibre reinforced composite.
Summary of the invention
A kind of modified by nano particles carbon cloth is the object of the present invention is to provide to strengthen the preparation method of Wet-type friction material.
For achieving the above object, present invention employs following technical scheme.
Utilize concentrated nitric acid to carry out oxide treatment to carbon cloth under hydrothermal conditions, adopt microwave-hydrothermal method carbon cloth surfaces depositing nano SiO after the oxidising treat-ment
2particle, then floods carbon cloth in modified phenolic resin lipoprotein solution, strengthens Wet-type friction material again after dipping through the hot-forming carbon cloth that obtains.
Carry out pre-treatment to carbon cloth before described oxide treatment, pretreated method comprises the following steps: be soaked in acetone or alcohol by carbon cloth and clean, then dry.
The condition of described oxide treatment is: control temperature is 80-120 DEG C, and the treatment time is 1-4 hour.
The condition of described microwave-hydrothermal method is: setting power is 300-500W, and temperature is 160-220 DEG C, and the reaction times is 60-150 minute.
Described modified phenolic resin lipoprotein solution is the modified phenolic resins ethanol solution of massfraction 20-40%.
Described modified by nano particles carbon cloth strengthens the preparation method of Wet-type friction material, specifically comprises the following steps:
Step 1: added by 75-200g modified phenolic resins in 300mL dehydrated alcohol, then stirs 1-3 hour, leaves standstill 24 hours after stirring, and obtains solution A;
Step 2: oblong-shaped carbon cloth being cut into 5cm*7cm, is then put in acetone to soak after 24 hours and takes out, then dry to obtain sample A;
Step 3: after sample A and 50mL concentrated nitric acid are put into hydrothermal reaction kettle, described hydrothermal reaction kettle is put into homogeneous reactor, then control temperature is 80-120 DEG C of reaction 1-4 hour, react the carbon cloth terminated in rear taking-up hydrothermal reaction kettle, and clean with deionized water, then at 60-100 DEG C, dry to obtain sample B;
Step 4: teflon-lined reactor put into by the silicon sol being 3-12% by sample B and 50mL massfraction, again teflon-lined reactor is put into microwave hydrothermal reaction, then setting power be 300-500W, temperature be the condition of 160-220 DEG C under insulation reaction 60-150 minute, room temperature is naturally cooled to after question response terminates, then carbon cloth taken out from described teflon-lined reactor and use deionized water wash, then dry at 60-100 DEG C, obtain sample C;
Step 5: sample C is placed in after solution A 8-10 minute and takes out, then dry to obtain sample D;
Step 6: be placed on vulcanizer hot-forming by sample D, obtains carbon cloth and strengthens Wet-type friction material.
Described hot-forming condition is: hot pressing temperature is 160 DEG C, and hot pressing time is 5-10 minute, and hot pressing pressure is 5-8MPa.
The woven type of described carbon cloth (i.e. carbon cloth) is plain weave, twill or satin weave; The specification of carbon cloth is 1K, 3K, 6K or 12K.
Described modified phenolic resins is cashew nut oil modified alkyd resin, nitrile rubber modified phenolic resin or boron modified phenolic resin.
Beneficial effect of the present invention is embodied in:
The present invention, by after carrying out oxide treatment to carbon cloth surfaces under hydrothermal conditions, adopts microwave-hydrothermal method at carbon cloth surfaces depositing nano SiO
2particle, it has efficiently, the carbon cloth surfaces oxygen level advantages of higher of all even preparation of nanoparticle deposition, solve existing carbon cloth and strengthen the problem that Wet-type friction material reinforcement and bond matrix undercapacity, mechanical property have much room for improvement, substantially improve cohesive strength and the tensile strength of carbon cloth and resin matrix, thus improve sulfidation neutral line polymer forms net high-polymer homogeneity by crosslinked action, make prepared carbon cloth Wet-type friction material have more excellent tribological property.
Accompanying drawing explanation
Fig. 1 is carbon fiber comparison diagram, and wherein, (a) is not oxidised, depositing nano SiO
2particle disposal carbon fiber surface microscopic appearance, (b) is carbon fiber surface microscopic appearance (embodiment 4) after oxidation, depositing nano silica dioxide granule;
Fig. 2 is not oxidised, depositing nano SiO
2carbon cloth prepared by particle disposal carbon cloth strengthens Wet-type friction material;
Fig. 3 is that the carbon cloth that under microwave hydrothermal condition, carbon cloth surfaces is prepared through oxidation and depositing nano silica dioxide granule strengthens Wet-type friction material (embodiment 4).
Embodiment
Below in conjunction with drawings and Examples, the present invention is elaborated.
Embodiment 1:
Step 1: get 75g nitrile rubber modified phenolic resin and add in 300mL dehydrated alcohol, then magnetic agitation 1 hour, leaves standstill 24 hours (modified phenolic resins is all dissolved in dehydrated alcohol) after magnetic agitation, obtains solution A;
Step 2: oblong-shaped carbon cloth being cut into 5cm*7cm, the oblong-shaped carbon cloth then a piece being cut into 5cm*7cm is put in acetone to soak after 24 hours and takes out, and dries to obtain sample A after taking out under natural condition;
Step 3: sample A and 50mL concentrated nitric acid (massfraction is 65%-68%) are put into hydrothermal reaction kettle, then hydrothermal reaction kettle is put in homogeneous reactor, then control temperature is 80 DEG C of reactions 2 hours, reaction terminates rear taking-up carbon cloth, and clean with deionized water, then under 80 DEG C of conditions, dry to obtain sample B;
Step 4: be the silicon sol (Nano-meter SiO_2 of 3% by sample B and 50mL massfraction
2granular composite forms silicon sol in water) put into teflon-lined reactor, again teflon-lined reactor is put into microwave hydrothermal reaction, then setting power is 300W, and at temperature is 160 DEG C insulation reaction 60 minutes, then be naturally down to after room temperature (20 DEG C) until temperature and the carbon cloth in teflon-lined reactor is taken out, and with deionized water wash, then freeze-day with constant temperature at 80 DEG C, obtains sample C;
Step 5: sample C is placed in solution A and takes out after 8 minutes, then dry to obtain sample D under field conditions (factors);
Step 6: be placed on vulcanizer hot-forming by sample D, controlling hot pressing temperature is 160 DEG C, and hot pressing time is 5 minutes, and hot pressing pressure is 5MPa, namely obtains carbon cloth surfaces through Nano-meter SiO_2
2granule modified carbon cloth strengthens Wet-type friction material.Testing kinetic friction coefficient through CFT-I type multifunctional material surface comprehensive performance tester is 0.1207.
Embodiment 2:
Step 1: get 125g cashew nut oil modified alkyd resin and add in 300mL dehydrated alcohol, then magnetic agitation 2 hours, leaves standstill 24 hours (modified phenolic resins is all dissolved in dehydrated alcohol) after magnetic agitation, obtains solution A;
Step 2: oblong-shaped carbon cloth being cut into 5cm*7cm, the oblong-shaped carbon cloth then a piece being cut into 5cm*7cm is put in acetone to soak after 24 hours and takes out, and dries to obtain sample A after taking out under natural condition;
Step 3: sample A and 50mL concentrated nitric acid (massfraction is 65%-68%) are put into hydrothermal reaction kettle, then hydrothermal reaction kettle is put in homogeneous reactor, then control temperature is 100 DEG C of reactions 3 hours, reaction terminates rear taking-up carbon cloth, and clean with deionized water, then under 80 DEG C of conditions, dry to obtain sample B;
Step 4: be the silicon sol (Nano-meter SiO_2 of 6% by sample B and 50mL massfraction
2granular composite forms silicon sol in water) put into teflon-lined reactor, again teflon-lined reactor is put into microwave hydrothermal reaction, then setting power is 400W, and at temperature is 180 DEG C insulation reaction 90 minutes, then be naturally down to after room temperature until temperature and the carbon cloth in teflon-lined reactor is taken out, and with deionized water wash, then freeze-day with constant temperature at 80 DEG C, obtains sample C;
Step 5: sample C is placed in solution A and takes out after 9 minutes, then dry to obtain sample D under field conditions (factors);
Step 6: be placed on vulcanizer hot-forming by sample D, controlling hot pressing temperature is 160 DEG C, and hot pressing time is 8 minutes, and hot pressing pressure is 6MPa, namely obtains carbon cloth surfaces through Nano-meter SiO_2
2granule modified carbon cloth strengthens Wet-type friction material.Testing kinetic friction coefficient through CFT-I type multifunctional material surface comprehensive performance tester is 0.1345.
Embodiment 3:
Step 1: get 150g boron modified phenolic resin and add in 300mL dehydrated alcohol, then magnetic agitation 2 hours, leaves standstill 24 hours (modified phenolic resins is all dissolved in dehydrated alcohol) after magnetic agitation, obtains solution A;
Step 2: oblong-shaped carbon cloth being cut into 5cm*7cm, the oblong-shaped carbon cloth then a piece being cut into 5cm*7cm is put in acetone to soak after 24 hours and takes out, and dries to obtain sample A after taking out under natural condition;
Step 3: sample A and 50mL concentrated nitric acid (massfraction is 65%-68%) are put into hydrothermal reaction kettle, then hydrothermal reaction kettle is put in homogeneous reactor, then control temperature is 80 DEG C of reactions 4 hours, reaction terminates rear taking-up carbon cloth, and clean with deionized water, then under 80 DEG C of conditions, dry to obtain sample B;
Step 4: be the silicon sol (Nano-meter SiO_2 of 9% by sample B and 50mL massfraction
2granular composite forms silicon sol in water) put into teflon-lined reactor, again teflon-lined reactor is put into microwave hydrothermal reaction, then setting power is 400W, and at temperature is 200 DEG C insulation reaction 120 minutes, then be naturally down to after room temperature until temperature and the carbon cloth in teflon-lined reactor is taken out, and with deionized water wash, then freeze-day with constant temperature at 80 DEG C, obtains sample C;
Step 5: sample C is placed in solution A and takes out after 9 minutes, then dry to obtain sample D under field conditions (factors);
Step 6: be placed on vulcanizer hot-forming by sample D, controlling hot pressing temperature is 160 DEG C, and hot pressing time is 8 minutes, and hot pressing pressure is 7MPa, namely obtains carbon cloth surfaces through Nano-meter SiO_2
2granule modified carbon cloth strengthens Wet-type friction material.Testing kinetic friction coefficient through CFT-I type multifunctional material surface comprehensive performance tester is 0.1411.
Embodiment 4:
Step 1: get 200g nitrile rubber modified phenolic resin and add in 300mL dehydrated alcohol, then magnetic agitation 3 hours, leaves standstill 24 hours (modified phenolic resins is all dissolved in dehydrated alcohol) after magnetic agitation, obtains solution A;
Step 2: oblong-shaped carbon cloth being cut into 5cm*7cm, the oblong-shaped carbon cloth then a piece being cut into 5cm*7cm is put in acetone to soak after 24 hours and takes out, and dries to obtain sample A after taking out under natural condition;
Step 3: sample A and 50mL concentrated nitric acid (massfraction is 65%-68%) are put into hydrothermal reaction kettle, then hydrothermal reaction kettle is put in homogeneous reactor, then control temperature is 120 DEG C of reactions 1 hour, reaction terminates rear taking-up carbon cloth, and clean with deionized water, then under 80 DEG C of conditions, dry to obtain sample B;
Step 4: be the silicon sol (Nano-meter SiO_2 of 12% by sample B and 50mL massfraction
2granular composite forms silicon sol in water) put into teflon-lined reactor, again teflon-lined reactor is put into microwave hydrothermal reaction, then setting power is 500W, and at temperature is 220 DEG C insulation reaction 150 minutes, then be naturally down to after room temperature until temperature and the carbon cloth in teflon-lined reactor is taken out, and with deionized water wash, then freeze-day with constant temperature at 80 DEG C, obtains sample C;
Step 5: sample C is placed in solution A and takes out after 10 minutes, then dry to obtain sample D under field conditions (factors);
Step 6: be placed on vulcanizer hot-forming by sample D, controlling hot pressing temperature is 160 DEG C, and hot pressing time is 10 minutes, and hot pressing pressure is 8MPa, namely obtains carbon cloth surfaces through Nano-meter SiO_2
2granule modified carbon cloth strengthens Wet-type friction material.Testing kinetic friction coefficient through CFT-I type multifunctional material surface comprehensive performance tester is 0.1287.
From Fig. 1, (a) can find out that untreated sample surface is more smooth, only has minute quantity particulate material, and adopts microwave-hydrothermal method at carbon cloth surfaces depositing nano SiO
2after particle, clearly can see Nano-meter SiO_2
2uniform particles is deposited on carbon fiber surface, see in Fig. 1 (b), is conducive to the bonding strength and the tensile strength that improve carbon cloth matrix and modified phenolic resins, and optimizes tribological property.As can be seen from Figure 3 carbon cloth surfaces through oxidation and the carbon cloth prepared of depositing nano silica dioxide granule strengthen the carbon cloth matrix of Wet-type friction material and nitrile rubber modified phenolic resin in conjunction with successful, hole is less, is better than friction materials shown in Fig. 2.
Compared with prior art, kinetic friction coefficient brings up to 0.1207-0.1411 by 0.0812-0.1143 to friction materials prepared by above-described embodiment.
Claims (7)
1. modified by nano particles carbon cloth strengthens a preparation method for Wet-type friction material, it is characterized in that: comprise the following steps:
Utilize concentrated nitric acid to carry out oxide treatment to carbon cloth under hydrothermal conditions, adopt microwave-hydrothermal method carbon cloth surfaces depositing nano SiO after the oxidising treat-ment
2particle, then floods carbon cloth in modified phenolic resin lipoprotein solution, strengthens Wet-type friction material again after dipping through the hot-forming carbon cloth that obtains;
The condition of described oxide treatment is: control temperature is 80-120 DEG C, and the treatment time is 1-4 hour;
The condition of described microwave-hydrothermal method is: setting power is 300-500W, and temperature is 160-220 DEG C, and the reaction times is 60-150 minute.
2. a kind of modified by nano particles carbon cloth strengthens the preparation method of Wet-type friction material according to claim 1, it is characterized in that: before described oxide treatment, pre-treatment is carried out to carbon cloth, pretreated method comprises the following steps: be soaked in acetone or alcohol by carbon cloth and clean, then dry.
3. a kind of modified by nano particles carbon cloth strengthens the preparation method of Wet-type friction material according to claim 1, it is characterized in that: described modified phenolic resin lipoprotein solution is the modified phenolic resins ethanol solution of massfraction 20-40%.
4. a kind of modified by nano particles carbon cloth strengthens the preparation method of Wet-type friction material according to claim 1, it is characterized in that: described modified by nano particles carbon cloth strengthens the preparation method of Wet-type friction material, specifically comprises the following steps:
Step 1: added by 75-200g modified phenolic resins in 300mL dehydrated alcohol, then stirs 1-3 hour, leaves standstill 24 hours after stirring, and obtains solution A;
Step 2: oblong-shaped carbon cloth being cut into 5cm*7cm, is then put in acetone to soak after 24 hours and takes out, then dry to obtain sample A;
Step 3: after sample A and 50mL concentrated nitric acid are put into hydrothermal reaction kettle, described hydrothermal reaction kettle is put into homogeneous reactor, then control temperature is 80-120 DEG C of reaction 1-4 hour, react the carbon cloth terminated in rear taking-up hydrothermal reaction kettle, and clean with deionized water, then at 60-100 DEG C, dry to obtain sample B;
Step 4: teflon-lined reactor put into by the silicon sol being 3-12% by sample B and 50mL massfraction, again teflon-lined reactor is put into microwave hydrothermal reaction, then setting power be 300-500W, temperature be the condition of 160-220 DEG C under insulation reaction 60-150 minute, room temperature is naturally cooled to after question response terminates, then carbon cloth taken out from described teflon-lined reactor and use deionized water wash, then dry at 60-100 DEG C, obtain sample C;
Step 5: sample C is placed in after solution A 8-10 minute and takes out, then dry to obtain sample D;
Step 6: be placed on vulcanizer hot-forming by sample D, obtains carbon cloth and strengthens Wet-type friction material.
5. a kind of modified by nano particles carbon cloth strengthens the preparation method of Wet-type friction material according to claim 1, and it is characterized in that: described hot-forming condition is: hot pressing temperature is 160 DEG C, hot pressing time is 5-10 minute, and hot pressing pressure is 5-8MPa.
6. a kind of modified by nano particles carbon cloth strengthens the preparation method of Wet-type friction material according to claim 1, it is characterized in that: the woven type of described carbon cloth is plain weave, twill or satin weave; The specification of carbon cloth is 1K, 3K, 6K or 12K.
7. a kind of modified by nano particles carbon cloth strengthens the preparation method of Wet-type friction material according to claim 1, it is characterized in that: described modified phenolic resins is cashew nut oil modified alkyd resin, nitrile rubber modified phenolic resin or boron modified phenolic resin.
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| CN105038110B (en) * | 2015-07-06 | 2017-07-21 | 陕西科技大学 | A kind of electrochemical modification carbon cloth enhancing friction material and preparation method thereof |
| CN105348729B (en) * | 2015-10-30 | 2017-07-14 | 陕西科技大学 | A kind of organic fiber strengthens the preparation method of carbon cloth/resin composite materials |
| CN105713234B (en) * | 2016-02-06 | 2018-07-17 | 陕西科技大学 | A kind of preparation method and application of carbon fibre reinforced high-molecular based composites |
| CN106867450B (en) * | 2017-01-23 | 2018-09-11 | 陕西科技大学 | A kind of preparation method of zinc oxide nanowire/carbon cloth friction material |
| CN108532291A (en) * | 2018-03-30 | 2018-09-14 | 陕西科技大学 | A kind of preparation method of carbon cloth surfaces growth in situ manganese dioxide nano-plates reinforced resin base frication material |
| CN114318858B (en) * | 2022-01-13 | 2023-02-28 | 西安交通大学 | Preparation method of silicon dioxide/ultrahigh molecular weight polyethylene laid fabric |
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| CN1733825A (en) * | 2004-07-26 | 2006-02-15 | 博格华纳公司 | Friction material with nanoparticles of friction modifying layer |
| CN102757621A (en) * | 2012-07-12 | 2012-10-31 | 广西南宁创智汇材料科技有限责任公司 | Wet-type composite friction material and preparation method thereof |
| CN103570957A (en) * | 2013-10-30 | 2014-02-12 | 陕西科技大学 | Method for preparing vacuum-impregnated wet-type carbon-cloth friction material |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1733825A (en) * | 2004-07-26 | 2006-02-15 | 博格华纳公司 | Friction material with nanoparticles of friction modifying layer |
| CN102757621A (en) * | 2012-07-12 | 2012-10-31 | 广西南宁创智汇材料科技有限责任公司 | Wet-type composite friction material and preparation method thereof |
| CN103570957A (en) * | 2013-10-30 | 2014-02-12 | 陕西科技大学 | Method for preparing vacuum-impregnated wet-type carbon-cloth friction material |
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