CN106046663B - A kind of polymer composite bearing and preparation method thereof - Google Patents

A kind of polymer composite bearing and preparation method thereof Download PDF

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Publication number
CN106046663B
CN106046663B CN201610356261.6A CN201610356261A CN106046663B CN 106046663 B CN106046663 B CN 106046663B CN 201610356261 A CN201610356261 A CN 201610356261A CN 106046663 B CN106046663 B CN 106046663B
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bearing
preparation
polymer composite
composite bearing
vacuum
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CN106046663A (en
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刘佳
王杰
郇彦
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Changchun A&z Science Co Ltd
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Changchun A&z Science Co Ltd
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    • C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
    • C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
    • C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
    • B29C70/345—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using matched moulds
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    • C08G18/6666—Compounds of group C08G18/48 or C08G18/52
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    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
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    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
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Abstract

The invention discloses a kind of polymer composite bearing and preparation method thereof, belong to technical field of composite materials.Solve in the prior art phenolic resin family macromolecule bearing in long-term operation process due to natural resiliency difference and the inclined polarization of axis, the problem of causing bearing wear to aggravate.The method of the present invention prepares base polyurethane prepolymer for use as first, then wet spinning obtains polyurethane fiber, again by polyurethane fiber infiltration into the solution containing phenolic resin, after solvent drying, obtain composite fibre, finally composite fibre is wrapped on bearing core rod, pressurized heat curing molding, obtains composite bearing.Bearing prepared by the method for the present invention have the advantages that high-mechanic, high-low temperature resistant changes, heat resistant hydrolysis, heat-proof aging, it is wear-resisting, can water shortage be dry in short-term starts and axis is tilted from correction, service life is grown, and can be widely applied to the fields such as ship rudder bearing, stern bearing and stern roller.

Description

A kind of polymer composite bearing and preparation method thereof
Technical field
The present invention relates to a kind of polymer composite bearing and preparation method thereof, belong to technical field of composite materials.
Background technology
Bearing for ship is very high to material requirements, it is desirable to possesses very high compressive strength, higher impact strength, wearability Good, coefficient of friction is low, and with the development of material industry, macromolecule bearing is due to environment-friendly, simple in construction, coefficient of friction Low, the advantages that security performance is high, turn into bearing for ship material of new generation, be widely used in ship, naval vessels, ocean engineering, water The fields such as pump, the hydraulic turbine.
In the prior art, the species for the macromolecule bearing in the fields such as ship rudder bearing, stern bearing and stern roller is main There are nylon, polyurethane rubber, ultra-high molecular weight polyethylene, polyether-ether-ketone, polyether sulfone and phenolic resin etc., wherein disclosure satisfy that Than pressing the high polymer material more than 20MPa to have nylon, polyether-ether-ketone, polyether sulfone and phenolic resin.In this different materials, Buddhist nun Dragon is thermoplastic resin, it is impossible to be used in water shortage is dry to be started, and application is narrow；Polyether-ether-ketone is high with polyether sulfone materials cost, processing Condition is harsh；Phenolic resin is heat-resist, and easy processing, and relative price is low, and height is more suitable as compared to other different materials Molecule bearing, still, phenolic resin it is elastic poor, bearing can produce the inclined polarization of axis in long-term operation process, Phenolic resin bearing can not produce corresponding elastic deformation according to tilting, so as to cause bearing wear to aggravate.
The content of the invention
Present invention aim to address phenolic resin family macromolecule bearing in the prior art in long-term operation process by In natural resiliency difference and the inclined polarization of axis, a kind of the problem of causing bearing wear to aggravate, there is provided polymer composite axle Hold and preparation method thereof.
A kind of preparation method of polymer composite bearing of the present invention, step are as follows：
Step 1: by PPG vacuum dehydration, after cooling, add in the reaction unit equipped with diisocyanate, it is lazy Property atmosphere under, after 50-80 DEG C of reaction 1-3h, add antiwear assistant, after continuing stirring reaction 10-30min, be cooled to 40-50 DEG C While vacuum defoamation, obtain base polyurethane prepolymer for use as；
Described PPG is in PTMG, polyoxypropylene glycol and end hydroxy butadiene One kind；
Described antiwear assistant is in ptfe micropowder, ultra-high molecular weight polyethylene micro mist, graphite and molybdenum disulfide One kind；
The mass ratio of the PPG, diisocyanate and antiwear assistant is (100-200):(35-200):(30- 60)；
Step 2: under stirring, the solvent containing chain extender is added in the base polyurethane prepolymer for use as obtained to step 1, mixing is equal After even, vacuum defoamation, spinning solution obtained, wet spinning, obtains polyurethane fiber；
Described chain extender is in 1,4- butanediols, two chloro- diaminodiphenyl-methanes and dimethythiotoluene diamine It is a kind of；
Step 3: the polyurethane fiber that step 2 is obtained is drawn in thermoset phenolic resin solution, after infiltration, lead Go out, dry out solvent, obtain the polyurethane composite fibre of surface parcel phenolic resin；
It is preheated on 100-120 DEG C of bearing core rod, will be tied with multiple Step 4: the composite fibre that step 3 is obtained is wrapped in The bearing core rod of condensating fiber is integrally put into mould, matched moulds pressurized heat curing molding, is stripped, and cooling, obtains composite bearing；
The temperature of the pressurized heat curing molding is 150-180 DEG C, pressure 5-15MPa, and the time is more than 10min.
Preferably, in step 2, described solvent is one kind in toluene, acetone and dimethylformamide.
Preferably, in step 2, the fiber number of described polyurethane fiber is 50-200tex.
Preferably, in step 2, the mol ratio of active hydrogen and isocyano in base polyurethane prepolymer for use as is in the chain extender 1:0.9-1:1.1；In spinning solution, the solid content of base polyurethane prepolymer for use as is 30-60%；
Preferably, in step 3, the solid content of the thermoset phenolic resin solution is 80-300%.
Preferably, in step 3, described pulling speed is 1-10mm/s.
The present invention also provides polymer composite bearing prepared by the preparation method of above-mentioned polymer composite bearing.
Compared with prior art, beneficial outcomes of the invention：
1st, the preparation method of composite bearing of the invention is first obtained using polyurethane fiber infiltration phenol resin solution Composite fiber, composite bearing then is prepared using Wrapping formed, this method is keeping the high-mechanic energy of phenolic resin On the basis of power, the high hard, polyurethane fiber " skeleton " of high abrasion is introduced, the soft elastic of bearing is added, in the operating of bearing During, when axis tilts, the pressure of bearing and axle contact surface becomes big, and composite bearing of the invention can pass through " skeleton " Elastic buckling from correct, make bearing keep it is synchronous with axis inclination, avoid the negative load of regional area, unstable wear occur Situation, improve the impact resistance of bearing and play the effect of damping；
Furthermore polyurethane fiber " skeleton " has excellent resistance to low temperature, it is possible to achieve liquid nitrogen or dry ice freezed It is full of installation, the overall excellent elasticity of composite bearing, can ensures that the required precision of installation process need not be particularly harsh, and It can be fixed after interference installation using itself bulbs of pressure with overcoat metal in close, it is not necessary to extra adhesive auxiliary, entirely Installation process is efficient and convenient；
Furthermore it is possible to composite bearing is adjusted by the thickness of the fiber number thickness of regulation " skeleton ", phenolic aldehyde integument Hardness and soft elastic, with this be applied to different carryings than pressure demand.
2nd, composite bearing of the invention have high-mechanic, high-low temperature resistant change, heat resistant hydrolysis, heat-proof aging, it is wear-resisting, can The dry startup of water shortage in short-term and axis are tilted from the advantages that correction, service life length, can be widely applied to ship rudder bearing, stern bearing With the field such as stern roller.
Brief description of the drawings
Fig. 1 is the technological process signal that composite fibre is prepared in the preparation method of the polymer composite bearing of the present invention Figure；
In Fig. 1,1, polyurethane fiber, 2, guide roller, 3, thermoset phenolic resin solution, 4, guide roller, 5, parcel phenolic aldehyde The polyurethane composite fibre of resin, 6, be connected with the path of hot-air, 7, rotating wheel.
Embodiment
In order to further appreciate that the present invention, the preferred embodiments of the invention are retouched with reference to embodiment State, but it is to be understood that these descriptions are simply for further explanation the features and advantages of the present invention rather than to patent of the present invention It is required that limitation.
The preparation method of phenolic aldehyde-polyurethane composite bearing of the present invention, step are as follows：
Step 1: the preparation of base polyurethane prepolymer for use as
PPG is heated to 100-120 DEG C, preferably 110 DEG C in the stainless steel cauldron of closed structure, carried out Vacuum dehydration, vacuum are<1000Pa, preferably dewatering time 1-3h, 3h；PPG after dehydration is cooled to 40- 60 DEG C, then it is added slowly to be equipped with diisocyanate in stainless steel cauldron, in an inert atmosphere (generally nitrogen), It is 50-80 DEG C to keep reaction temperature, after stirring reaction 1-3h, preferably 70 DEG C stirring 1h, adds antiwear assistant, is stirred for reacting After 10-30min, preferably 30min, vacuum defoamation while being cooled to 40-50 DEG C, the vacuum of vacuum defoamation is 10-100Pa, Time is 10-30min, that is, obtains base polyurethane prepolymer for use as；
Wherein, PPG is in PTMG, polyoxypropylene glycol and end hydroxy butadiene One kind；Diisocyanate is toluene di-isocyanate(TDI) or methyl diphenylene diisocyanate；Antiwear assistant is polytetrafluoroethyl-ne One kind in alkene micro mist, ultra-high molecular weight polyethylene micro mist, graphite and molybdenum disulfide；PPG, diisocyanate and resistance to The mass ratio of milling aid is (100-200):(35-200):(30-60).
Step 2: the preparation of polyurethane fiber
Under stirring, the solvent containing chain extender is slowly added into the base polyurethane prepolymer for use as of step 1, after being well mixed, very Empty deaeration, the vacuum of vacuum defoamation is 10-100Pa, time 10-30min, spinning solution is obtained, using wet spinning system Standby polyurethane fiber, fiber number 50-200tex；
Wherein, chain extender is BDO, two chloro- diaminodiphenyl-methanes (MOCA), dimethythiotoluene diamine (E-300) one kind in；Solvent is one kind in toluene, acetone, dimethylformamide；Base polyurethane prepolymer for use as and chain extender rub You are than being 1:0.9-1:1.1；In spinning solution, the solid content of base polyurethane prepolymer for use as is 30-60%；
Wet spinning is known to the skilled person general knowledge, i.e.,：First spinning solution quantitative and even is pressed with measuring pump Enter spinneret, then under the effect of the pressure, spinning solution is extruded to form strand thread from spinneret pore, and enters It is connected with the path of hot-air, the solvent in strand thread is volatilized rapidly, and is taken away by air, and strand concentration is improved constantly until solidifying Attenuate Gu at the same time strand thread is stretched, be finally wound into package, produce polyurethane fiber.
Step 3: polyurethane fiber coats phenolic resin
As shown in figure 1, by polyurethane fiber 1 by guide roller 2 and guide roller 4 draw into thermoset phenolic resin solution Involve in 3, after infiltration and be oven-dried into the path 6 for being connected with hot-air, the solvent of thermoset phenolic resin solution 3, obtain surface The polyurethane composite fibre 5 of phenolic resin is wrapped up, is wrapped on rotating wheel 7；
Wherein, solid content is 80%-300% in phenol resin solution, the infiltration number of polyurethane fiber and degree according to Determination is actually needed, the preferably pulling speed of the process is 1-10mm/s；
Step 4: bearing is molded
The composite fibre that step 3 is obtained, which is wrapped in, to be preheated on 100-120 DEG C of bearing core rod, will be tied with composite fibre Bearing core rod be integrally put into mould, matched moulds pressurized heat curing molding, the phenolic aldehyde for the composite fibre being wrapped on bearing core rod Resin is bonded to one another, the demoulding, room temperature cooling, obtains composite bearing；
Wherein, the mode of winding is typically using from core rod one end to core rod other end continuous winding, then from the another of core rod Core rod one end continuous winding is held, winding is repeated several times, the thickness needed to bearing；Pre-heating mean is not particularly limited, typically It is placed in uniform to temperature in 150-180 DEG C of vulcanizing press, general 10-30min；The temperature of pressurized heat curing molding is 150- 180 DEG C, pressure 5-15MPa, the time is more than 10min, preferably 10-30min, and equipment typically uses vulcanizing press；Core rod Shape be not particularly limited, as needed selection, generally pylindrical core rod.
In the method for the present invention, by controlling the solid content and infiltration number of phenol resin solution, parcel can be adjusted The thickness and content of layer phenolic resin.Again by the thickness of the thickness of integument phenolic resin, content and polyurethane fiber come Composite bearing overall hardness and pliability are controlled, different carryings is applied to than pressure demand with this.
In order to be better understood from the present invention, with reference to embodiment, the present invention is furture elucidated.
Embodiment 1
The preparation method of polymer composite bearing：
Step 1: first by 2000g in the stainless steel cauldron of closed structure, molecular weight is 2000 PTMG Glycol is heated to 110 DEG C, vacuum dehydration 3h (vacuums<1000Pa), then the PTMG after dehydration is cooled down To 60 DEG C, it is added slowly in the stainless steel cauldron of the toluene di-isocyanate(TDI) equipped with 350g, under nitrogen atmosphere, keeps Reaction temperature is 70 DEG C, after stirring reaction 1h, adds 300g ptfe micropowder, is stirred for reacting 0.5h, cools to 50 DEG C while vacuum defoamation, the vacuum of vacuum defoamation is 100Pa, time 10min, obtains base polyurethane prepolymer for use as；
Step 2: under stirring, it is slowly added into the base polyurethane prepolymer for use as obtained to step 1 containing 90g1,4- butanediols In 3000mL toluene solutions, after being well mixed, vacuum defoamation, the vacuum of vacuum defoamation is 100Pa, time 10min, is obtained Spinning solution, the rotating speed with measuring pump according to 1kg/min, spinning solution is equably pressed into spinneret, under the effect of the pressure, Spinning solution is extruded to form strand thread from spinneret pore, and enters the path for being connected with hot-air, in strand thread Toluene volatilize rapidly, and taken away by air, strand concentration improves constantly until solidification, and at the same time strand thread is stretched change Carefully, package is finally wound into, produces the polyurethane fiber that fiber number is 80tex；
Step 3: polyurethane fiber is immersed into the phenolic aldehyde tree that solid content is 100% by directive wheel (hauling speed 5mm/s) Fat ethanol solution, infiltration rear haulage enter the path for being connected with hot-air, ethanol are dried, that is, obtain surface parcel phenolic resin Polyurethane composite fibre；
Step 4: composite fibre is wrapped on the cylindrical drum core rod for being preheated to 120 DEG C, heat cure of pressurizeing is put into mould Shaping, pressurized heat curing molding temperature are 180 DEG C, pressure 5MPa, time 30min, the composite fibre integrally curing of winding Shaping, produces composite bearing.
Embodiment 2
The preparation method of polymer composite bearing：
Step 1: first by 1000g in the stainless steel cauldron of closed structure, molecular weight is 1000 polyoxypropylene Glycol is heated to 120 DEG C, vacuum dehydration 2h (vacuums<1000Pa), then the polyoxypropylene glycol after dehydration is cooled down To 40 DEG C, it is added slowly in the stainless steel cauldron of the methyl diphenylene diisocyanate equipped with 500g, in nitrogen atmosphere Under, it is 50 DEG C to keep reaction temperature, after stirring reaction 3h, adds 300g ultra-high molecular weight polyethylene, is cooled to 40 DEG C same When vacuum defoamation, the vacuum of vacuum defoamation is 10Pa, time 30min, obtains base polyurethane prepolymer for use as；
Step 2: under stirring, it is slowly added into the base polyurethane prepolymer for use as obtained to step 1 containing bis- chloro- diaminourea of 267g In the 4000mL acetone solns of diphenyl methane, after being well mixed, vacuum defoamation, the vacuum of vacuum defoamation is 10Pa, the time For 30min, spinning solution is obtained, the rotating speed with measuring pump according to 3kg/min, spinning solution is equably pressed into spinneret, In the presence of pressure, spinning solution is extruded to form strand thread from spinneret pore, and enters the river in Zhejiang Province for being connected with hot-air Road, the acetone in strand thread volatilizees rapidly, and is taken away by air, and strand concentration improves constantly until solidification, at the same time silk Bar thread, which is stretched, to attenuate, and is finally wound into package, obtains the polyurethane fiber that fiber number is 160tex；
Step 3: polyurethane fiber is immersed into the phenolic aldehyde that solid content is 150% by directive wheel (hauling speed 10mm/s) Resin ethanol solution, infiltration rear haulage enter the path for being connected with hot-air, ethanol are dried, that is, obtain surface parcel phenolic resin Polyurethane composite fibre.
Step 4: composite fibre winding is preheated on 110 DEG C of cylindrical drum core rod, it is put into pressurized heat in mould and is solidified into Type, pressurized heat curing molding temperature are 150 DEG C, pressure 15MPa, time 10min, the composite fibre integrally curing of winding into Type, produce composite bearing.
Embodiment 3
The preparation method of polymer composite bearing：
Step 1: first by 1000g in the stainless steel cauldron of closed structure, molecular weight is 1000 terminal hydroxy group polybutadiene Alkene is heated to 110 DEG C, vacuum dehydration 3h (vacuums<1000Pa), the end hydroxy butadiene after dehydration is then cooled to 60 DEG C, it is added slowly in the stainless steel cauldron equipped with 350g toluene di-isocyanate(TDI)s, under nitrogen atmosphere, keeps reaction temperature Spend for 80 DEG C, after stirring reaction 1h, add 300g molybdenum disulfide, vacuum defoamation while being cooled to 45 DEG C, vacuum defoamation Vacuum is 60Pa, time 20min, obtains base polyurethane prepolymer for use as；
Step 2: under stirring, it is slowly added into the base polyurethane prepolymer for use as obtained to step 1 containing 214g dimethyl sulphur-based first In the 1000mL dimethyl formamide solutions of phenylenediamine, after being well mixed, vacuum defoamation, the vacuum of vacuum defoamation is 70Pa, Time is 25min, obtains spinning solution, the rotating speed with measuring pump according to 0.5kg/min, spinning solution is equably pressed into spinning Head, under the effect of the pressure, spinning solution are extruded to form strand thread from spinneret pore, and enter and be connected with hot-air Path, the dimethylformamide in strand thread is volatilized rapidly, and taken away by air, strand concentration is improved constantly until solidifying Attenuate Gu at the same time strand thread is stretched, be finally wound into package, produce the polyurethane fiber that fiber number is 50tex；
Step 3: polymer fiber is immersed into the phenolic aldehyde tree that solid content is 80% by directive wheel (hauling speed 1mm/s) Fat ethanol solution, infiltration rear haulage enter the path for being connected with hot-air, ethanol are dried, that is, obtain surface parcel phenolic resin Polyurethane composite fibre；
It is preheated to Step 4: composite fibre is wrapped on 110 DEG C of cylindrical drum core rods, is put into pressurized heat in mould and is solidified into Type, pressurized heat curing molding temperature are 160 DEG C, pressure 12MPa, time 20min, the composite fibre integrally curing of winding into Type, produce composite bearing.
The hardness of composite bearing and phenolic resin of the prior art (PF) to embodiment 1-3, stretching is slight, rubs Coefficient is wiped to be detected.Wherein PVvalue testing is tested, and is carried out on MRH-3A type high-speed loop block frictional testing machines；Test-strips Part is：Load 66N, rotating speed：210rpm, temperature：25±2℃.The national standard that the test of hardness uses for：GB/T 3398.2- 2008 plastic hardness determine.The national standard that tensile strength uses with elongation at break for：GB/T 1040.1-2006 plastics are drawn Stretch the measure of performance.Test result is as shown in table 1.
The performance test results of the embodiment 1-3 of table 1 composite bearing
Sample Hardness Tensile strength Elongation at break Dry friction coefficient Water lubrication coefficient of friction
Embodiment 1 80D 60MPa 80% 0.24 0.04
Embodiment 2 82D 63MPa 50% 0.22 0.03
Embodiment 3 81D 63MPa 55% 0.25 0.05
PF 85D 65MPa <10% 0.28 0.07
As it can be seen from table 1 the composite bearing of the present invention is compared to blank phenolic resin, water lubrication coefficient of friction with And dry friction coefficient at least declines more than 15%, meanwhile, hardness decreases, and pliability significantly improves, and is keeping phenolic aldehyde matrix The excellent high-low temperature resistant of resin becomes, on the basis of heat resistant hydrolysis and heat aging property, can solve the problem that due to poor toughness and causes The inclined polarization of axis caused by wear problem.

Claims (10)

1. a kind of preparation method of polymer composite bearing, it is characterised in that step is as follows：
Step 1: by PPG or end hydroxy butadiene vacuum dehydration, after cooling, add anti-equipped with diisocyanate Answer in device, under inert atmosphere, after 50-80 DEG C of reaction 1-3h, add antiwear assistant, after continuing stirring reaction 10-30min, drop Temperature obtains base polyurethane prepolymer for use as to vacuum defoamation while 40-50 DEG C；
Described PPG is one kind in PTMG, polyoxypropylene glycol；
Described antiwear assistant is one in ptfe micropowder, ultra-high molecular weight polyethylene micro mist, graphite and molybdenum disulfide Kind；
The mass ratio of the PPG, diisocyanate and antiwear assistant is (100-200):(35-200):(30-60)；
Step 2: under stirring, the solvent containing chain extender is added in the base polyurethane prepolymer for use as obtained to step 1, is well mixed Afterwards, vacuum defoamation, spinning solution is obtained, wet spinning, obtains polyurethane fiber；
Described chain extender is one kind in 1,4- butanediols, two chloro- diaminodiphenyl-methanes and dimethythiotoluene diamine；
Step 3: the polyurethane fiber that step 2 is obtained is drawn in thermoset phenolic resin solution, after infiltration, involve, dry Dry solvent, obtain the polyurethane composite fibre of surface parcel phenolic resin；
It is preheated to Step 4: the composite fibre that step 3 is obtained is wrapped on 100-120 DEG C of bearing core rod, compound fibre will be tied with The bearing core rod of dimension is integrally put into mould, matched moulds pressurized heat curing molding, is stripped, and cooling, obtains polymer composite axle Hold；
The temperature of the pressurized heat curing molding is 150-180 DEG C, pressure 5-15MPa, and the time is more than 10min.
2. the preparation method of polymer composite bearing according to claim 1, it is characterised in that in step 1, institute The diisocyanate stated is toluene di-isocyanate(TDI) or methyl diphenylene diisocyanate.
3. the preparation method of polymer composite bearing according to claim 1, it is characterised in that in step 1, institute The vacuum for stating vacuum dehydration is<1000Pa, time 1-3h, temperature are 100-120 DEG C；After vacuum dehydration, 40-60 is cooled to ℃。
4. the preparation method of polymer composite bearing according to claim 1, it is characterised in that step 1 and step In two, the vacuum of the vacuum defoamation is 10-100Pa, time 10-30min.
5. the preparation method of polymer composite bearing according to claim 1, it is characterised in that in step 2, institute The solvent stated is one kind in toluene, acetone and dimethylformamide.
6. the preparation method of polymer composite bearing according to claim 1, it is characterised in that in step 2, institute The fiber number for the polyurethane fiber stated is 50-200tex.
7. the preparation method of polymer composite bearing according to claim 1, it is characterised in that in step 2, institute It is 1 to state the mol ratio of active hydrogen and isocyano in base polyurethane prepolymer for use as in chain extender:0.9-1:1.1；In spinning solution, poly- ammonia The solid content of ester performed polymer is 30-60%.
8. the preparation method of polymer composite bearing according to claim 1, it is characterised in that in step 3, institute The solid content for stating thermoset phenolic resin solution is 80-300%.
9. the preparation method of polymer composite bearing according to claim 1, it is characterised in that in step 3, institute The pulling speed stated is 1-10mm/s.
10. macromolecule prepared by the preparation method of the polymer composite bearing described in claim 1-9 any one is compound Material bearing.
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CN102720758A (en) * 2012-05-30 2012-10-10 中国科学院长春应用化学研究所 Composite material backing water-lubricated rubber bearing and preparation method thereof
CN103351565A (en) * 2013-06-27 2013-10-16 暨南大学 Wear-resisting heat-conducting polyurethane bearing as well as preparation method and application thereof
CN104817840A (en) * 2015-04-29 2015-08-05 中国科学院兰州化学物理研究所 High-load, vibration-reduction and anti-abrasion polymer composite for water lubrication bearings

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102720758A (en) * 2012-05-30 2012-10-10 中国科学院长春应用化学研究所 Composite material backing water-lubricated rubber bearing and preparation method thereof
CN103351565A (en) * 2013-06-27 2013-10-16 暨南大学 Wear-resisting heat-conducting polyurethane bearing as well as preparation method and application thereof
CN104817840A (en) * 2015-04-29 2015-08-05 中国科学院兰州化学物理研究所 High-load, vibration-reduction and anti-abrasion polymer composite for water lubrication bearings

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