CN104592709A - Novel composite fiber-reinforced damping friction-resistant material and preparation method thereof - Google Patents
Novel composite fiber-reinforced damping friction-resistant material and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a novel composite fiber-reinforced damping friction-resistant material and a preparation method thereof. The novel composite fiber-reinforced damping friction-resistant material has a large damping force. The preparation method has the characteristics of simple processes, making convenience and low cost. The novel composite fiber-reinforced damping friction-resistant material contains a raw material polysulfone-modified phenolic resin. The preparation method comprises the following steps of 1, weighing raw materials for next use according to a formula, 2, putting the raw materials into a high-speed mixer, carrying out mixing and taking out the mixture, 3, carrying out compression molding, and 4, carrying out heat curing, wherein in the step 3 of compression molding, the interior of the cavity of a pre-heated mold is coated with a release agent.
Description
Technical field
The present invention relates to a kind of key part and manufacture method thereof of antidetonation shock attenuation frcition damper, especially a kind of New-type composite fibre strengthens damping friction resistance material and preparation method thereof.
Background technology
Earthquake is that one jeopardizes people life property safety, destructiveness, the great Sudden Natural Disasters of hazardness, in earthquake buildings, structures destruction and to collapse be the basic reason causing disaster and loss.Earthquake can not only cause building collapsing, transport and communication to interrupt, and also may produce the great secondary harm such as fire, tsunami, rubble flow, landslide, cause a large amount of loss of life and personal injury and huge financial loss.As Richter scale 7.9 grades of violent earthquakes occur in the marine site of on December 26th, 2004 near Indonesia Sumatra island, and cause tsunami, cause more than 20 ten thousand people missing and dead.The earthquake on the ground such as China's Qinghai Province's Yushu County, also causes the loss of a large amount of personnel and property.
Along with various countries' expanding economy and science and technology, the improving constantly of standard of living, people for the defence consciousness of earthquake also in continuous enhancing.Traditional structural aseismatic design can not meet structure and support earthquake-resistant requirement.In recent years, scholars has carried out large quantifier elimination to structural damping, seismic isolation technology and relevant Theories and methods, achieves some significant achievements.Aseismic control technology of building structure, as a kind of effective ways resisting earthquake action, obtains and develops faster and apply, and has become the technology of comparative maturity.Particularly reach its maturity based on the passive energy-dissipating and shock-absorbing Theory and technology increasing structural damping, and can successfully be applied in the antidetonation anti-wind control of engineering structure.
Traditional structural seismic method (improves the rigidity of structure by strengthening member section by the anti-seismic performance of enhancement engineering structure itself, strength and stability) resist earthquake action, although this method can play to a certain extent to earthquake-resistant effect, but increase structural rigidity to mean and also increase the response of structure under earthquake motion effect, too increase the weight of engineering structure itself and the cost of buildings simultaneously, and because people can't accurately estimate following by the intensity of the earthquake of generation and characteristic in advance, therefore its design variable probably can not meet the requirement of Structural Design security, and make structure produce havoc and collapse, cause great financial loss.Rationally effective anti-shock methods installs energy-consumption shock-absorption device (deoscillator) exactly in engineering structure, jointly earthquake action is born by damping device and agent structure itself, common dissipation Seismic input to the energy in engineering structure, to alleviate and to alleviate the earthquake response of structure.
Structure is simple owing to having for frcition damper, energy dissipation capacity by force, not by features such as Loading frequency affect, be widely used in construction work in recent years.What frcition damper generally adopted is that two contacts form surface in contact mutually, and relatively sliding on the contact surface, be heat energy by changes mechanical energy.The friction damper meeting classical coulomb characteristic frictional theory has the mechanical property of rigid-plastic, high initial stiffness, can ensure the distortion limit value of structure structure under little shake effect and wind action.Friction energy-dissipating structure is under normal working load effect, and friction damped braced is only the additional stiffness that structure provides enough, and friction energy dissipation device does not produce slippage; Under severe earthquake action friction energy dissipation device just by generation slippage for structure provides additional damping, and utilize friction work to carry out dissipation energy.Frcition damper can provide larger additional damping and additional stiffness for structure, has good coulomb characteristic and good energy dissipation capacity, and load, loading frequency and the impact of loaded cycle number of times on its energy-dissipating property are less.Frcition damper also has that damping force is large, stable performance, simple structure, cheap and be convenient to the advantages such as installation and maintenance, in Practical Project, obtain a large amount of promoting the use of.
These dissimilar frcition dampers have a common feature, all friction resistance material must be used exactly in engineering structure, this kind of friction resistance material makes with macromolecular material, there is very large deformability friction and damping force, under the effect of wind-force and seismic force, building vibration produces displacement, and frcition damper is out of shape thereupon, produce reverse resistance will build " pulling back " simultaneously, turn reduce vibration; This method both ensure that the safety of engineering structure, made again people feel comfortably cool.The basic dependence on import of this kind of high-grade friction resistance material, expensive in the past, and domestic product cannot meet the performance requriements of frcition damper.
Summary of the invention
The object of the invention is the deficiency overcoming above-mentioned background technology, a kind of New-type composite fibre for damping frcition damper is provided to strengthen damping friction resistance material, this friction resistance material should have the large feature of damping force, and can meet the requirement of high temperature resistant, wear-resistant, corrosion-resistant and environmental protection, low noise.
Another object of the present invention is to provide the preparation method that a kind of New-type composite fibre strengthens damping friction resistance material, and the method should have simple, the easy to make and lower-cost feature of technique.
Technical scheme provided by the invention is: New-type composite fibre strengthens damping friction resistance material, and the raw material comprised in this friction resistance material and weight part are:
Polysulfone modified phenolic resin 10 ~ 18 parts, surface treated POB fiber 10 ~ 19 parts, 5 ~ 10 parts, surface treated carbon fiber, surface treated silicon carbide fiber 10 ~ 16 parts, aramid fiber abrasion resistant particles 5 ~ 12 parts, process white 10 ~ 22 parts, asphalt powder 1 ~ 6 part, molybdenumdisulphide 3 ~ 8 parts, 0.5 ~ 3 part, aluminum oxide, cupric sulfide 3 ~ 9 parts, Powdered acrylonitrile-butadiene rubber 2 ~ 8 parts, Zinic stearas 0.5 ~ 1 part, petroleum coke 2 ~ 6 parts, synthetic graphite 8 ~ 15 parts, porous calcium silicate particle 5 ~ 8, manganese sulfide 4 ~ 12 parts, high temperature lubricating stablizer (full aromatic polyimide) 3 ~ 10 parts.
The raw material comprised in New-type composite fibre enhancing damping friction resistance material and weight part are: polysulfone modified phenolic resin 10 ~ 13 parts, surface treated POB fiber 12 ~ 14 parts, 5 ~ 6 parts, surface treated carbon fiber, surface treated silicon carbide fiber 10 ~ 12 parts, aramid fiber abrasion resistant particles 5 ~ 6 parts, process white 10 ~ 12 parts, asphalt powder 3 ~ 4.5 parts, molybdenumdisulphide 3 ~ 5 parts, 0.1 ~ 1 part, aluminum oxide, cupric sulfide 3 ~ 4.5 parts, Powdered acrylonitrile-butadiene rubber 2 ~ 3 parts, Zinic stearas 0.5 ~ 1 part, petroleum coke 3 ~ 3.5 parts, synthetic graphite 8 ~ 8.5 parts, porous calcium silicate particle 5 ~ 6.5 parts, manganese sulfide 5 ~ 6.5 parts, high temperature lubricating stablizer (full aromatic polyimide) 3.5 ~ 4.5 parts.
Described surface treated pbo fiber drops in potassium permanganate solution by pbo fiber, floods to take out after 110 ~ 120 minutes to clean, 70 DEG C of vacuum oven 60 minutes; Diameter 15 ~ the 20um of fiber, length 3 ~ 6mm; Described potassium permanganate solution contains mass percent and is respectively the sulfuric acid of 50% and the oxygenant of 1%, and all the other are potassium permanganate; Described oxygenant is Manganse Dioxide.
Described surface treated carbon fiber first drops in ammonium dibasic phosphate solution by carbon fiber, floods after 20 ~ 30 minutes, by carbon fiber heating to 220 DEG C ~ 260 DEG C, be incubated 4 ~ 6 minutes, then after the clear water washing of 40 ~ 60 DEG C, dry at the temperature of 150 DEG C ~ 160 DEG C; Staple length 6 ~ 8mm, Fibre diameter 25 ~ 35um; Described ammonium dibasic phosphate solution is containing the Secondary ammonium phosphate of 3% mass ratio, and all the other are water.
Described surface treated silicon carbide fiber is dropped into by silicon carbide fiber in γ-aminopropyl triethoxysilane coupling agent solution, floods after 45 ~ 50 minutes and take out, 50 DEG C of vacuum oven 60 ~ 70 minutes; Staple length 4 ~ 5mm, the diameter 25 ~ 35um of fiber;
In described γ-aminopropyl triethoxysilane coupling agent solution, containing the γ-aminopropyl triethoxysilane coupling agent of 30% mass ratio, all the other are water.
The granularity of described polysulfone modified phenolic resin, process white, molybdenumdisulphide, aluminum oxide, cupric sulfide, Powdered acrylonitrile-butadiene rubber, Zinic stearas, manganese sulfide, acrylonitrile-butadiene rubber powder, high temperature lubricating stablizer (full aromatic polyimide) all >=350 orders.
The granularity of described aramid fiber abrasion resistant particles, asphalt powder, porous calcium silicate particle, petroleum coke, synthetic graphite is 40 ~ 60 orders.
Above-mentioned New-type composite fibre strengthens the preparation method of damping friction resistance material, carries out according to following steps:
1) various raw material for standby is taken by formula;
2) first other raw material except surface treated POB fiber, surface treated carbon fiber, surface treated silicon carbide fiber is dropped in high speed mixer, puddle 6 ~ 7 minutes; Then drop into surface treated POB fiber, surface treated carbon fiber, surface treated silicon carbide fiber, after puddling 3 ~ 5 minutes, then add the full aromatic polyimide as high temperature lubricating stablizer, after puddling 1 ~ 2 minute, take out mixture;
3) compression molding: mixture is put into disposable hot press mold shaping in mold cavity, its hot pressing temperature is 185 DEG C ± 10 DEG C, and hot pressing pressure is 50Mpa ± 0.5Mpa; The hot-press solidifying time is 20-22 minute, in 3 minutes hot-press solidifying starting stages, every 20 second breathing a mould once, altogether exit 3 times, be cured to the specified time in pressurize afterwards;
4) thermofixation: be first incubated 2.5 ± 0.1 hours when 138-145 DEG C; Then in 0.5 hour, be warming up to 150-160 DEG C of insulation 2 ± 0.2 hours; 170-180 DEG C of insulation 4 ± 0.2 hours are warming up to again in 0.5 hour; In 1 hour, be warming up to again 195-210 DEG C of insulation 6 ± 0.2 hours, then naturally cool to room temperature, be more directly warmed up to 170-180 DEG C of insulation 2 ± 0.2 hours;
Described step 3) compression molding time, need coating release agent in preheated mold cavity in advance.
The invention has the beneficial effects as follows: the features such as this friction resistance material has high temperature resistant, wear-resistant, low noise and friction catch moment is stable, damping force is large, environmental protection; After tested: 350 DEG C time, frictional coefficient is still higher than like product 20%, wear rate (10
-7cm
3/ Nm) be then like product 19.25%; And the equal buyable of all raw material obtains, and not only meet environmental requirement, and manufacture easy, cost is lower, has wide market outlook.
Embodiment
One deck has been wrapped up by liquid styrene butadiene rubber and hydrogenated butyronitrile latex compounds in aramid fiber abrasion resistant particles surface in the present invention, aramid fiber abrasion resistant particles hollow structure inside, there is certain compression resilience, rate of compression >=35%, the wear-resisting, high temperature resistant of friction resistance material and noise performance can be significantly improved.This aramid fiber abrasion resistant particles can directly outsourcing obtain or make by oneself by the following method:
The raw material that aramid fiber abrasion resistant particles comprises and weight part are: ppta-pulp fibre 40 ~ 60 parts, aramid short fiber 15 ~ 30 parts, liquid acrylonitrile butadiene rubber 8 ~ 20 parts, liquid styrene butadiene rubber 10 ~ 16 parts, solvent-borne type cashew nut shell oil liquid resin 6 ~ 15 parts;
Described ppta-pulp fibre floods 30 ~ 35 minutes in coupling agent solution, Fibre diameter 15um, length 5 ~ 8mm; Described aramid short fiber floods 30 ~ 35 minutes in coupling agent solution, and length 5 ~ 8mm, diameter is selected as required.
In described coupling agent solution, aluminium titanium composite coupler content is 20 ~ 30%, and all the other are water;
The preparation method of aramid fiber abrasion resistant particles, carries out according to following steps:
(1) fiber coupling agent treatment: first ppta-pulp fibre and aramid short fiber are put into coupling agent solution dipping and take out and dry after 30 ~ 35 minutes;
(2) pre-treatment: by the ppta-pulp fibre that processed and aramid short fiber, drops in high speed mixer, mix 4 ~ 5 minutes, then in high speed mixer taking-up to obtain pre-treatment material for subsequent use;
(3) ppta-pulp fibre first step (1) processed and aramid short fiber are put in liquid acrylonitrile butadiene rubber and are pulled an oar, and beating consistency is 3 ~ 5%, and beating degree is 35 ~ 45 ° of SR; Then add the Pluronic F-127 solution 12 parts that concentration is 0.05 ~ 0.08, discongest with fluffer and evenly form the finely dispersed slurry of material;
(4) slurry step (3) obtained is 90 ~ 100 DEG C of drying in oven, and put in solvent-borne type cashew nut shell oil liquid resin by the slurry after oven dry and flood 20 ~ 35 minutes, glue content controls 6-15 part.
(5) dropped in milling machine by slurry obtained for step (4), and add 10 ~ 16 parts of liquid styrene butadiene rubbers simultaneously, kneading temperature controls at 30 ~ 40 DEG C, and the kneading time was at 6 ~ 7 minutes.
(6) compound obtained for step (5) is dropped into degassed wheel in tablets press and carries out granulation, described particle be spherical or cylindric granularity between 40 ~ 60 orders, hollow structure inside, having certain compression resilience rate of compression is >=35%.
Porous calcium silicate particle in the present invention is made by the crystal growth technique of special crystallization and stability contorting, thus makes this particle form unique external aperture, the globosity of inner macropore.This particle has open internal structure, and around the shell that is closely made up of needle-like crystal, therefore effectively can improve the porosity of friction resistance material, elasticity and compressible performance, and significantly improve friction stability, and good auxiliary batch mixing effect can be played.
This porous calcium silicate particle can directly outsourcing obtain or make by oneself by following technological process:
1) the molar ratio input reactor of 1.8:1 pressed by silicon-dioxide and calcium oxide, then silicon-dioxide and the sodium carbonate of 15-20% of calcium oxide total amount and the polyoxyethylene glycol of the 7-11% of silicon-dioxide and calcium oxide total amount is dropped into, then add the water of 1:13-17 curing ratio, stir and make it mix in 10 ~ 12 minutes;
2) be warming up to 450-470K, keep this thermotonus 5-7 hour, after being then warmed up to 800-900K, keep this thermotonus 3-5 hour; After question response completes cooling, take out from reactor synthetics washing, filter, for subsequent use after 110 DEG C ~ 120 DEG C drying in oven.
Solvent-borne type cashew nut shell oil liquid resin purchased from American Ka Delai (Zhuhai) company in the present invention.
Polysulfone modified phenolic resin purchased from American Sheng Laike specialization work (Shanghai) company in the present invention.
Below by way of specific embodiment, technical scheme of the present invention is described further.
Embodiment 1
This New-type composite fibre strengthens damping friction resistance material, wherein friction resistance material layer is made up of the raw material of following weight part: polysulfone modified phenolic resin 10 parts, surface treated POB fiber 12 parts, 5 parts, surface treated carbon fiber, surface treated silicon carbide fiber 10 parts, aramid fiber abrasion resistant particles 5 parts, process white 11 parts, asphalt powder 3 parts, molybdenumdisulphide 5 parts, 1 part, aluminum oxide, cupric sulfide 4.5 parts, Powdered acrylonitrile-butadiene rubber 3 parts, Zinic stearas 0.5 part, petroleum coke 3.5 parts, synthetic graphite 8 parts, porous calcium silicate particle 5 parts, manganese sulfide 6.5 parts, acrylonitrile-butadiene rubber powder 3 parts, full aromatic polyimide 4 parts.
Preparation method: take starting material → by the various starting material mix and blend 10-11 minute → material mixed is dropped into disposable hot press mold shaping in mould, its hot pressing temperature is 185 DEG C, hot pressing time is 20 minutes, and hot pressing pressure is 50Mpa → thermofixation: be incubated 2.5 hours when being warming up to 140 DEG C; Then in 0.5 hour, be warming up to 150 DEG C of insulations 2 hours; 170 DEG C of insulations 4 hours are warming up to again in 0.5 hour; In 1 hour, be warming up to again 200 DEG C of insulations 6 hours, then naturally cool to room temperature, be more directly warmed up to from room temperature that 170 DEG C of insulations 2 hours → strengthening damping friction resistance material to the New-type composite fibre after solidification carries out machining.
Embodiment 2
This New-type composite fibre strengthens damping friction resistance material, wherein friction resistance material layer is made up of the raw material of following weight part: polysulfone modified phenolic resin 11 parts, surface treated POB fiber 13 parts, 5 parts, surface treated carbon fiber, surface treated silicon carbide fiber 11 parts, aramid fiber abrasion resistant particles 6 parts, process white 12 parts, asphalt powder 4.5 parts, molybdenumdisulphide 3 parts, 0.5 part, aluminum oxide, cupric sulfide 4 parts, Powdered acrylonitrile-butadiene rubber 2 parts, Zinic stearas 0.5 part, petroleum coke 3 parts, synthetic graphite 8.5 parts, porous calcium silicate particle 6.5 parts, manganese sulfide 6 parts, full aromatic polyimide 3.5 parts.
Preparation method: take starting material → by the various starting material mix and blend 10-11 minute → material mixed is dropped into disposable hot press mold shaping in mould, its hot pressing temperature is 185 DEG C, hot pressing time is 20 minutes, and hot pressing pressure is 50Mpa → thermofixation: be incubated 2.5 hours when being warming up to 140 DEG C; Then in 0.5 hour, be warming up to 150 DEG C of insulations 2 hours; 170 DEG C of insulations 4 hours are warming up to again in 0.5 hour; In 1 hour, be warming up to again 200 DEG C of insulations 6 hours, then naturally cool to room temperature, be more directly warmed up to from room temperature that 170 DEG C of insulations 2 hours → strengthening damping friction resistance material to the New-type composite fibre after solidification carries out machining.
Embodiment 3
This New-type composite fibre strengthens damping friction resistance material, wherein friction resistance material layer is made up of the raw material of following weight part: polysulfone modified phenolic resin 13 parts, surface treated POB fiber 14 parts, 6 parts, surface treated carbon fiber, surface treated silicon carbide fiber 12 parts, aramid fiber abrasion resistant particles 5.5 parts, process white 10 parts, asphalt powder 4 parts, molybdenumdisulphide 3 parts, 0.5 part, aluminum oxide, cupric sulfide 3 parts, Powdered acrylonitrile-butadiene rubber 2 parts, Zinic stearas 1 part, petroleum coke 3 parts, synthetic graphite 8 parts, porous calcium silicate particle 6 parts, manganese sulfide 5 parts, full aromatic polyimide 4.5 parts.
Preparation method: take starting material → by the various starting material mix and blend 10-11 minute → material mixed is dropped into disposable hot press mold shaping in mould, its hot pressing temperature is 185 DEG C, hot pressing time is 20 minutes, and hot pressing pressure is 50Mpa → thermofixation: be incubated 2.5 hours when being warming up to 140 DEG C; Then in 0.5 hour, be warming up to 150 DEG C of insulations 2 hours; 170 DEG C of insulations 4 hours are warming up to again in 0.5 hour; In 1 hour, be warming up to again 200 DEG C of insulations 6 hours, then naturally cool to room temperature, be more directly warmed up to from room temperature that 170 DEG C of insulations 2 hours → strengthening damping friction resistance material to the New-type composite fibre after solidification carries out machining.
The friction resistance material that above-mentioned working method obtains, through comparison and detection, obtains data as follows:
In table, data are known: frictional coefficient is obviously better than contrast product (similar products at home and abroad); Wear rate is then significantly less than contrast product (similar products at home and abroad).
Claims (9)
1. New-type composite fibre strengthens damping friction resistance material, and the raw material comprised in this friction resistance material and weight part are:
Polysulfone modified phenolic resin 10 ~ 18 parts, surface treated POB fiber 10 ~ 19 parts, 5 ~ 10 parts, surface treated carbon fiber, surface treated silicon carbide fiber 10 ~ 16 parts, aramid fiber abrasion resistant particles 5 ~ 12 parts, process white 10 ~ 22 parts, asphalt powder 1 ~ 6 part, molybdenumdisulphide 3 ~ 8 parts, 0.5 ~ 3 part, aluminum oxide, cupric sulfide 3 ~ 9 parts, Powdered acrylonitrile-butadiene rubber 2 ~ 8 parts, Zinic stearas 0.5 ~ 1 part, petroleum coke 2 ~ 6 parts, synthetic graphite 8 ~ 15 parts, porous calcium silicate particle 5 ~ 8, manganese sulfide 4 ~ 12 parts, full aromatic polyimide 3 ~ 10 parts.
2. New-type composite fibre according to claim 1 strengthens damping friction resistance material, it is characterized in that the raw material that comprises in this friction resistance material and weight part are: polysulfone modified phenolic resin 10 ~ 13 parts, surface treated POB fiber 12 ~ 14 parts, 5 ~ 6 parts, surface treated carbon fiber, surface treated silicon carbide fiber 10 ~ 12 parts, aramid fiber abrasion resistant particles 5 ~ 6 parts, process white 10 ~ 12 parts, asphalt powder 3 ~ 4.5 parts, molybdenumdisulphide 3 ~ 5 parts, 0.1 ~ 1 part, aluminum oxide, cupric sulfide 3 ~ 4.5 parts, Powdered acrylonitrile-butadiene rubber 2 ~ 3 parts, Zinic stearas 0.5 ~ 1 part, petroleum coke 3 ~ 3.5 parts, synthetic graphite 8 ~ 8.5 parts, porous calcium silicate particle 5 ~ 6.5 parts, manganese sulfide 5 ~ 6.5 parts, full aromatic polyimide 3.5 ~ 4.5 parts.
3. New-type composite fibre according to claim 1 and 2 strengthens damping friction resistance material, it is characterized in that described surface treated pbo fiber, that pbo fiber is dropped in potassium permanganate solution, flood taking-up after 110 ~ 120 minutes to clean, 70 DEG C of vacuum oven 60 minutes, diameter 15 ~ the 20um of fiber, length 3 ~ 6mm; Described potassium permanganate solution contains mass percent and is respectively the sulfuric acid of 50% and the oxygenant of 1%, and all the other are potassium permanganate; Described oxygenant is Manganse Dioxide.
4. New-type composite fibre according to claim 3 strengthens damping friction resistance material, it is characterized in that described surface treated carbon fiber, first carbon fiber is dropped in ammonium dibasic phosphate solution, flood after 20 ~ 30 minutes, by carbon fiber heating to 220 DEG C ~ 260 DEG C, be incubated 4 ~ 6 minutes, again after the clear water washing of 40 ~ 60 DEG C, dry at the temperature of 150 DEG C ~ 160 DEG C, staple length 6 ~ 8mm, the diameter 25 ~ 35um of fiber; Described ammonium dibasic phosphate solution is containing the Secondary ammonium phosphate of 3% mass ratio, and all the other are water.
5. New-type composite fibre according to claim 4 strengthens damping friction resistance material, it is characterized in that described surface treated silicon carbide fiber, silicon carbide fiber is dropped in γ-aminopropyl triethoxysilane coupling agent solution, flood after 45 ~ 50 minutes and take out, 50 DEG C of vacuum oven 60 ~ 70 minutes; Staple length 4 ~ 5mm, the diameter 25 ~ 35um of fiber; Containing the γ-aminopropyl triethoxysilane coupling agent of 30% mass ratio in described γ-aminopropyl triethoxysilane coupling agent solution, all the other are water.
6. New-type composite fibre according to claim 5 strengthens damping friction resistance material, it is characterized in that described polysulfone modified phenolic resin, process white, molybdenumdisulphide, aluminum oxide, cupric sulfide, Powdered acrylonitrile-butadiene rubber, Zinic stearas, manganese sulfide, acrylonitrile-butadiene rubber powder, full aromatic polyimide granularity all >=350 orders.
7. New-type composite fibre according to claim 6 strengthens damping friction resistance material, it is characterized in that the granularity of described aramid fiber abrasion resistant particles, asphalt powder, porous calcium silicate particle, petroleum coke, synthetic graphite is 40 ~ 60 orders.
8. above-mentioned New-type composite fibre strengthens the preparation method of damping friction resistance material, carries out according to following steps:
1) various raw material for standby is taken by formula;
2) first other raw material except surface treated POB fiber, surface treated carbon fiber, surface treated silicon carbide fiber is dropped in high speed mixer, puddle 6 ~ 7 minutes; Then drop into surface treated POB fiber, surface treated carbon fiber, surface treated silicon carbide fiber, after puddling 3 ~ 5 minutes, then add the full aromatic polyimide as high temperature lubricating stablizer, after puddling 1 ~ 2 minute, take out mixture;
3) compression molding: mixture is put into disposable hot press mold shaping in mold cavity, its hot pressing temperature is 185 DEG C ± 10 DEG C, and hot pressing pressure is 50Mpa ± 0.5Mpa; The hot-press solidifying time is 20-22 minute, in 3 minutes hot-press solidifying starting stages, every 20 second breathing a mould once, altogether exit 3 times, be cured to the specified time in pressurize afterwards;
4) thermofixation: be first incubated 2.5 ± 0.1 hours when 138-145 DEG C; Then in 0.5 hour, be warming up to 150-160 DEG C of insulation 2 ± 0.2 hours; 170-180 DEG C of insulation 4 ± 0.2 hours are warming up to again in 0.5 hour; In 1 hour, be warming up to again 195-210 DEG C of insulation 6 ± 0.2 hours, then naturally cool to room temperature, be more directly warmed up to 170-180 DEG C of insulation 2 ± 0.2 hours; Namely complete.
9. New-type composite fibre according to claim 8 strengthens the preparation method of damping friction resistance material, it is characterized in that described step 3) compression molding time, need coating release agent in preheated mold cavity in advance.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106151331A (en) * | 2016-06-27 | 2016-11-23 | 杭州桑拉科技有限公司 | A kind of electric car automatic speed transmission Wet-type friction slice and preparation method thereof |
| CN106979268A (en) * | 2017-06-08 | 2017-07-25 | 海安县东洋通达汽车配件有限公司 | A kind of automobile friction |
| CN110723926A (en) * | 2019-10-16 | 2020-01-24 | 上海华信轨道交通装备有限公司 | Formula of damping block and manufacturing method of damping block |
| CN110983149A (en) * | 2019-12-05 | 2020-04-10 | 杭州润福春科技有限公司 | Low-melting-point metal compound friction composite material and preparation method thereof |
| CN116640457A (en) * | 2023-06-30 | 2023-08-25 | 中建友（唐山）科技有限公司 | Modified asphalt for waterproof coiled material and preparation method thereof |
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| CN1468890A (en) * | 2003-06-12 | 2004-01-21 | 山东大学 | Carbon fiber reinforced friction material and its prepn |
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| CN1468890A (en) * | 2003-06-12 | 2004-01-21 | 山东大学 | Carbon fiber reinforced friction material and its prepn |
| WO2005064061A1 (en) * | 2003-12-30 | 2005-07-14 | Samyang Corporation | A geogrid composed of fiber-reinforced polymeric strip and method for producing the same |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151331A (en) * | 2016-06-27 | 2016-11-23 | 杭州桑拉科技有限公司 | A kind of electric car automatic speed transmission Wet-type friction slice and preparation method thereof |
| CN106979268A (en) * | 2017-06-08 | 2017-07-25 | 海安县东洋通达汽车配件有限公司 | A kind of automobile friction |
| CN110723926A (en) * | 2019-10-16 | 2020-01-24 | 上海华信轨道交通装备有限公司 | Formula of damping block and manufacturing method of damping block |
| CN110983149A (en) * | 2019-12-05 | 2020-04-10 | 杭州润福春科技有限公司 | Low-melting-point metal compound friction composite material and preparation method thereof |
| CN116640457A (en) * | 2023-06-30 | 2023-08-25 | 中建友（唐山）科技有限公司 | Modified asphalt for waterproof coiled material and preparation method thereof |
| CN116640457B (en) * | 2023-06-30 | 2024-05-14 | 中建友（唐山）科技有限公司 | Modified asphalt for waterproof coiled material and preparation method thereof |
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