CN103467784B - Method for manufacturing vibration isolator - Google Patents
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- CN103467784B CN103467784B CN201210183509.5A CN201210183509A CN103467784B CN 103467784 B CN103467784 B CN 103467784B CN 201210183509 A CN201210183509 A CN 201210183509A CN 103467784 B CN103467784 B CN 103467784B
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Abstract
The invention discloses a method for manufacturing a vibration isolator. The method is as below: first dipcoating 5-10 rubber layers on a whisker surface of tetrpod-like zinc oxide; taking 100 parts by weight of plasticated natural rubber; adding 10-15 parts by weight of the tetrpod-like zinc oxide with rubber layers dip-coated on the whisker surface, 3-5 parts by weight of nano zinc oxide, 0.3-0.8 parts by weight of stearic acid, 15-20 parts by weight of spray carbon black, 1-3 parts by weight of an antioxidant N-phenyl-beta-naphthylamine, 2-3 parts by weight of sulfur and 0.3-0.8 part by weight of an accelerator disulfide benzothiazole; mixing evenly; injecting the mixture into a metal mold cavity of a molding machine injection isolator by an injection molding machine; and vulcanizing the mixture at 150-160 DEG C for 15-20 min to obtain the isolator product. The isolator manufactured by the manufacturing method provided by the invention has strong carrying capacity and high damping dissipation energy, good noise reduction and isolation performance and obvious effects.
Description
(1), technical field
The present invention relates to a kind of manufacture method of vibration isolator, specifically, is the method manufacturing vibration isolator by four acicular type zinc oxide crystal whisker Reinforced Rubber.
(2) background technology
Along with the development of modern industry, the high-power machinery of vibration tool and generation judder is on the increase, and the hazard of vibration that various mechanical means is brought in running and working process is also day by day serious.In daily life, this kind of vibration & noise can be detrimental to health, and brings extreme influence to the live and work of people.In engineering, the broadband random excitation that vibration & noise brings can cause many resonance peak responses of structure, directly affects the normal work of electron device, instrument and instrument, causes catastrophic effect time serious.In military affairs, development high speed and the high-power increasingly of weaponry and aircraft, various aircraft is subject to the excitation of engine and high velocity air in flight course, and the structural fatigue produced owing to vibrating harmonious dynamic response is very serious.Submarine and surface-effect ship are subject to the excitation of engine, and the high-decibel noise of generation will have a strong impact on fighting capacity.Adopting efficient vibration isolation material or vibration insulation structure to carry out vibration and noise reducing one-tenth has been one of the highly effective means that solve the problem.
Chinese patent CN1156467 discloses a kind of rubber combination, it contains 100 parts of heavier feedstocks rubber, it contains the partial hydrogenation rubber being not less than 30% (weight) at least one conjugated diene rubber, wherein there is the hydrogenation of 5 ~ 70% unsaturated double-bonds in conjugated diene portion, 10 ~ 150 parts of heavy oxygen SiClxs; 0.1 ~ 20 part heavy organo silane coupling agent; And 0.1 ~ 10 part heavy vulcanizing agent.
Chinese patent CN101469758 discloses a kind of FRP Reinforced Rubber vibration isolator and manufacture method thereof, relate to a kind of vibration isolator and manufacture method thereof, it is interlaced superimposed and bond through sulfuration and form that this vibration isolator is provided with the FRP plate of adhesive layer by rubber layer and upper and lower surface, and FRP plate is the FRP plate be made up of fiber reinforced material and resin matrix; Fiber reinforced material is one or more in glass fibre, high-strength glass fibre, carbon fiber, aramid fiber, basalt fibre or trevira; Resin matrix is the one in epoxy resin, unsaturated polyester resin, resol or vinyl ester resin; FRP plate is formed by stacking by 1 ~ 50 piece of single plate that principal direction is different; Its manufacture method comprises: prepare FRP plate, arrange adhesive layer, lamination, sulfidization molding.
Chinese patent CN102295738A discloses a kind of polyurethane material for ship vibration isolator and preparation method thereof, its raw material comprises following component: (1) isocyanate component: by TODI and polyester polyol react obtained prepolymer or TODI and the MDI at least containing 50% mass parts mix isocyanic ester and polyester polyol reacts the prepolymer obtained, NCO massfraction is 3% ~ 7%; (2) solidifying agent component: be 100: 50 ~ 100 to mix with mass ratio by aminated compounds and softening agent.The mass ratio of isocyanate component and solidifying agent component is 100: 10 ~ 38, and after solidification, material static load can reach 29 ~ 33kN.
Chinese patent CN101443392 discloses the polyolefin compositions that a kind of free expansion forms stable foam.Said composition contains the tackifying resin of specified quantitative.Said composition comprises the swelling agent of at least one thermal activation, and generally includes the linking agent of at least one thermal expansion.Said composition is effectively as the sealer in mobile applications and sound insulation, vibration isolator.
Above-mentioned in the disclosed patent of China, be summed up, existing vibration isolator type comprises: vibration-proof rubber, metal spring, pneumatic cushioning, rubber sponge and cartridge type oil dash-pot etc., in these vibration isolators, metal spring, pneumatic cushioning have stronger supporting capacity, but vibration isolation capability is poor; Vibration-proof rubber, rubber sponge can be decayed high and low frequency vibration simultaneously, but supporting capacity is poor; Cartridge type oil dash-pot has good vibration isolation capability, but does not have vertical bearing capacity.And in multiple Application Areass such as building vibration isolation, equipment vibration isolation, structure or component vibration isolation, all need vibration isolator to have certain supporting capacity and high damping energy dissipation capacity simultaneously.
(3), summary of the invention
The object of the present invention is to provide a kind of manufacture method of vibration isolator, the vibration isolator of the method manufacture has stronger supporting capacity and high damping energy dissipation capacity simultaneously, and noise reduction anti-vibration performance is good, successful.
For achieving the above object, the manufacture method of a kind of vibration isolator of the present invention, is characterized in that:
(1): first rubber layer on four acicular type zinc oxide crystal whisker surface dip-coating, the method for four acicular type zinc oxide crystal whisker surface dip-coating rubber layer is: the first, mix and blend; In 100 weight part isobutylene-isoprene latexes, add 1 ~ 3 weight part vulcanizing agent and 3 ~ 5 weight part promotor, described vulcanizing agent is sulphur, and promotor is zinc diethyldithiocarbamate; Stirring makes vulcanizing agent and promotor mix with isobutylene-isoprene latex, pulverous four acicular type zinc oxide crystal whisker 16 ~ 22 weight part is joined in the isobutylene-isoprene latex of sulfur-bearing agent and promotor, stirs the abundant infiltration making four acicular type zinc oxide crystal whisker surface obtain isobutylene-isoprene latex; The second, centrifugation; By being separated with isobutylene-isoprene latex by four acicular type zinc oxide crystal whisker in centrifugal filter, remove the latex of four acicular type zinc oxide crystal whisker excess surface, the isobutylene-isoprene latex filtered out can recycle; Three, drying and sulfidizing is carried out; The four acicular type zinc oxide crystal whisker of surface dip-coating isobutylene-isoprene latex is carried out drying in boiled bed drying machine, after in isobutylene-isoprene latex, moisture evaporates, in boiled bed drying machine, sulfuration is carried out to the rubber layer of four acicular type zinc oxide crystal whisker surface dip-coating again, obtain the four acicular type zinc oxide crystal whisker of surface dip-coating last layer rubber layer; Four, the step described in above-mentioned first, second, third is repeated, the four acicular type zinc oxide crystal whisker of the surface dip-coating last layer rubber layer obtained is joined in the isobutylene-isoprene latex of recovery, stir infiltration, centrifuging, fluidized drying, so repeatedly the rubber layer of 5 ~ 10 layers on four acicular type zinc oxide crystal whisker surface dip-coating;
(2) natural rubber that 100 weight parts are plasticated, is got, add four acicular type zinc oxide crystal whisker 10 ~ 15 weight part of rubber layer on surface dip-coating, nano zine oxide 3 ~ 5 weight part, stearic acid 0.3 ~ 0.8 weight part, spraying carbon black 15 ~ 20 weight part, anti-aging agent N-Phenyl beta naphthylamine 1 ~ 3 weight part, sulphur 2 ~ 3 weight part, accelerant disulfide benzothiazole 0.3 ~ 0.8 weight part, evenly mixing, vibration isolator metal die cavity is injected with injection transfer molding machine, to put under 150 ~ 160 DEG C of conditions sulfuration 15 ~ 20 minutes, obtain vibration isolator product.
Each pin length of described four acicular type zinc oxide crystal whisker is 40 ~ 50 μm.
Described isobutylene-isoprene latex weight percentage is 45 ~ 55%.
It is 50 ~ 60 DEG C that the four acicular type zinc oxide crystal whisker of described surface dip-coating isobutylene-isoprene latex carries out dry temperature in boiled bed drying machine, and time of drying is 30 ~ 60 minutes.
Described temperature of carrying out sulfuration to the rubber layer of four acicular type zinc oxide crystal whisker surface dip-coating in boiled bed drying machine is 160 ~ 170 DEG C, curing time is 5 ~ 10 minutes.
In technique scheme, in the manufacture method of a kind of vibration isolator of the present invention, four acicular type zinc oxide crystal whisker is the whisker uniquely in whisker family with three-D space structure, four needles single crystal are grown from a zinc oxide crystallization nuclei on apparent, any two needles angles are 109 ° 28 ', the kernel size of whisker 0.2 ~ 20 μm, needles length 20 ~ 200 μm.Just because of the space structure of its uniqueness, make four acicular type zinc oxide crystal whisker become a kind of multiduty functional materials, there is enhancing, wear-resisting, explosion-proof, damping, noise reduction and suction ripple, antistatic, sound insulation, absorption ultraviolet and the excellent performance such as antibacterial.The present invention utilizes the space structure of its uniqueness, can play a supporting role, thus greatly improve the supporting capacity of vibration isolator to the power of any direction; The butyl layers of 5 ~ 10 layers on four acicular type zinc oxide crystal whisker surface dip-coating, because isoprene-isobutylene rubber has very strong damping capacity, but butyl macintoss is private exists the problem such as dynamic property and tackyness difference as vibration isolator, the present invention utilizes the advantages such as the dynamic property of natural rubber, weather resistance and processibility are good, make produced vibration isolator have stronger supporting capacity and high damping energy dissipation capacity simultaneously, noise reduction anti-vibration performance is good, successful.
(4) embodiment
Embodiment one:
In the reactor of 100 liters, add 50kg weight percentage is 45% isobutylene-isoprene latex, open and stir, 0.5kg sulphur and 1.5kg zinc diethyldithiocarbamate is added again in isobutylene-isoprene latex, the four acicular type zinc oxide crystal whisker being 40 μm by each for 10kg pin length adds in isobutylene-isoprene latex, send into after stirring in centrifugal filter, the isobutylene-isoprene latex filtered out can recycle; The four acicular type zinc oxide crystal whisker of surface dip-coating isobutylene-isoprene latex to be sent in 50 DEG C of boiled bed drying machines dry 60 minutes, again dried four acicular type zinc oxide crystal whisker is sent into another 170 DEG C in boiled bed drying machine, carry out sulfuration 5 minutes, obtain the four acicular type zinc oxide crystal whisker of surface dip-coating last layer rubber layer; The four acicular type zinc oxide crystal whisker obtained is joined in the isobutylene-isoprene latex of recovery again, stirring, centrifuging, fluidized drying, sulfuration, the rubber layer of 5 layers on four acicular type zinc oxide crystal whisker surface dip-coating, obtains the four acicular type zinc oxide crystal whisker 14.5kg of rubber layer on surface dip-coating so repeatedly;
Get the natural rubber that 100kg plasticates, add the four acicular type zinc oxide crystal whisker 14.5kg of rubber layer on surface dip-coating, nano zine oxide 3kg, stearic acid 0.3kg, spraying carbon black 15kg, anti-aging agent N-Phenyl beta naphthylamine 1kg, sulphur 2kg, accelerant disulfide benzothiazole 0.3kg, evenly mixing, vibration isolator metal die cavity is injected with injection transfer molding machine, put into the baking oven sulfuration 20 minutes of 150 DEG C, obtain vibration isolator product.
Embodiment two:
In the reactor of 100 liters, add 50kg weight percentage is 55% isobutylene-isoprene latex, open and stir, 1.5kg sulphur and 2.5kg zinc diethyldithiocarbamate is added again in isobutylene-isoprene latex, the four acicular type zinc oxide crystal whisker being 50 μm by each for 8kg pin length adds in isobutylene-isoprene latex, send into after stirring in centrifugal filter, the isobutylene-isoprene latex filtered out can recycle; The four acicular type zinc oxide crystal whisker of surface dip-coating isobutylene-isoprene latex to be sent in 60 DEG C of boiled bed drying machines dry 30 minutes, again dried four acicular type zinc oxide crystal whisker is sent into another 160 DEG C in boiled bed drying machine, carry out sulfuration 10 minutes, obtain the four acicular type zinc oxide crystal whisker of surface dip-coating last layer rubber layer; The four acicular type zinc oxide crystal whisker obtained is joined in the isobutylene-isoprene latex of recovery again, stirring, centrifuging, fluidized drying, sulfuration, the rubber layer of 10 layers on four acicular type zinc oxide crystal whisker surface dip-coating, obtains the four acicular type zinc oxide crystal whisker 13.5kg of rubber layer on surface dip-coating so repeatedly;
Get the natural rubber that 100kg plasticates, add the four acicular type zinc oxide crystal whisker 13.5kg of rubber layer on surface dip-coating, nano zine oxide 5kg, stearic acid 0.8kg, spraying carbon black 20kg, anti-aging agent N-Phenyl beta naphthylamine 3kg, sulphur 3kg, accelerant disulfide benzothiazole 0.8kg, evenly mixing, vibration isolator metal die cavity is injected with injection transfer molding machine, put into the baking oven sulfuration 15 minutes of 160 DEG C, obtain vibration isolator product.
Embodiment three:
In the reactor of 100 liters, add 50kg weight percentage is 50% isobutylene-isoprene latex, open and stir, 1.0kg sulphur and 2.0kg zinc diethyldithiocarbamate is added again in isobutylene-isoprene latex, the four acicular type zinc oxide crystal whisker being 45 μm by each for 9kg pin length adds in isobutylene-isoprene latex, send into after stirring in centrifugal filter, the isobutylene-isoprene latex filtered out can recycle; The four acicular type zinc oxide crystal whisker of surface dip-coating isobutylene-isoprene latex to be sent in 55 DEG C of boiled bed drying machines dry 45 minutes, again dried four acicular type zinc oxide crystal whisker is sent into another 165 DEG C in boiled bed drying machine, carry out sulfuration 8 minutes, obtain the four acicular type zinc oxide crystal whisker of surface dip-coating last layer rubber layer; The four acicular type zinc oxide crystal whisker obtained is joined in the isobutylene-isoprene latex of recovery again, stirring, centrifuging, fluidized drying, sulfuration, the rubber layer of 8 layers on four acicular type zinc oxide crystal whisker surface dip-coating, obtains the four acicular type zinc oxide crystal whisker 14.0kg of rubber layer on surface dip-coating so repeatedly;
Get the natural rubber that 100kg plasticates, add the four acicular type zinc oxide crystal whisker 14.0v of rubber layer on surface dip-coating, nano zine oxide 4kg, stearic acid 0.6kg, spraying carbon black 18kg, anti-aging agent N-Phenyl beta naphthylamine 1.5kg, sulphur 2.5kg, accelerant disulfide benzothiazole 0.7kg, evenly mixing, vibration isolator metal die cavity is injected with injection transfer molding machine, put into the baking oven sulfuration 18 minutes of 155 DEG C, obtain vibration isolator product.
Embodiment four:
In the reactor of 100 liters, add 50kg weight percentage is 52% isobutylene-isoprene latex, open and stir, 1.2kg sulphur and 2.2kg zinc diethyldithiocarbamate is added again in isobutylene-isoprene latex, the four acicular type zinc oxide crystal whisker being 48 μm by each for 11kg pin length adds in isobutylene-isoprene latex, send into after stirring in centrifugal filter, the isobutylene-isoprene latex filtered out can recycle; The four acicular type zinc oxide crystal whisker of surface dip-coating isobutylene-isoprene latex to be sent in 58 DEG C of boiled bed drying machines dry 48 minutes, again dried four acicular type zinc oxide crystal whisker is sent into another 167 DEG C in boiled bed drying machine, carry out sulfuration 7 minutes, obtain the four acicular type zinc oxide crystal whisker of surface dip-coating last layer rubber layer; The four acicular type zinc oxide crystal whisker obtained is joined in the isobutylene-isoprene latex of recovery again, stirring, centrifuging, fluidized drying, sulfuration, the rubber layer of 6 layers on four acicular type zinc oxide crystal whisker surface dip-coating, obtains the four acicular type zinc oxide crystal whisker 13.0kg of rubber layer on surface dip-coating so repeatedly;
Get the natural rubber that 100kg plasticates, add the four acicular type zinc oxide crystal whisker 13.0kg of rubber layer on surface dip-coating, nano zine oxide 4.2kg, stearic acid 0.7kg, spraying carbon black 16kg, anti-aging agent N-Phenyl beta naphthylamine 1.2kg, sulphur 2.2kg, accelerant disulfide benzothiazole 0.6kg, evenly mixing, vibration isolator metal die cavity is injected with injection transfer molding machine, put into the baking oven sulfuration 18 minutes of 152 DEG C, obtain vibration isolator product.
Embodiment five:
In the reactor of 100 liters, add 50kg weight percentage is 52% isobutylene-isoprene latex, open and stir, 0.8kg sulphur and 2.1kg zinc diethyldithiocarbamate is added again in isobutylene-isoprene latex, the four acicular type zinc oxide crystal whisker being 44 μm by each for 9kg pin length adds in isobutylene-isoprene latex, send into after stirring in centrifugal filter, the isobutylene-isoprene latex filtered out can recycle; The four acicular type zinc oxide crystal whisker of surface dip-coating isobutylene-isoprene latex to be sent in 56 DEG C of boiled bed drying machines dry 42 minutes, again dried four acicular type zinc oxide crystal whisker is sent into another 168 DEG C in boiled bed drying machine, carry out sulfuration 6 minutes, obtain the four acicular type zinc oxide crystal whisker of surface dip-coating last layer rubber layer; The four acicular type zinc oxide crystal whisker obtained is joined in the isobutylene-isoprene latex of recovery again, stirring, centrifuging, fluidized drying, sulfuration, the rubber layer of 9 layers on four acicular type zinc oxide crystal whisker surface dip-coating, obtains the four acicular type zinc oxide crystal whisker 14.2kg of rubber layer on surface dip-coating so repeatedly;
Get the natural rubber that 100kg plasticates, add the four acicular type zinc oxide crystal whisker 14.2kg of rubber layer on surface dip-coating, nano zine oxide 4.1kg, stearic acid 0.6kg, spraying carbon black 17kg, anti-aging agent N-Phenyl beta naphthylamine 2.8kg, sulphur 2.7kg, accelerant disulfide benzothiazole 0.7kg, evenly mixing, vibration isolator metal die cavity is injected with injection transfer molding machine, put into the baking oven sulfuration 16 minutes of 158 DEG C, obtain vibration isolator product.
Claims (3)
1. the manufacture method of a vibration isolator, it is characterized in that: first rubber layer on four acicular type zinc oxide crystal whisker surface dip-coating, the method of four acicular type zinc oxide crystal whisker surface dip-coating rubber layer is: the first, mix and blend: in 100 weight part isobutylene-isoprene latexes, add 1 ~ 3 weight part vulcanizing agent and 3 ~ 5 weight part promotor, described vulcanizing agent is sulphur, and promotor is zinc diethyldithiocarbamate; Stirring makes vulcanizing agent and promotor mix with isobutylene-isoprene latex, pulverous four acicular type zinc oxide crystal whisker 16 ~ 22 weight part is joined in the isobutylene-isoprene latex of sulfur-bearing agent and promotor, stirs the abundant infiltration making four acicular type zinc oxide crystal whisker surface obtain isobutylene-isoprene latex; The second, centrifugation: by being separated with isobutylene-isoprene latex by four acicular type zinc oxide crystal whisker in centrifugal filter, removes the latex of four acicular type zinc oxide crystal whisker excess surface, and the isobutylene-isoprene latex filtered out recycles; Three, drying and sulfidizing is carried out: the four acicular type zinc oxide crystal whisker of surface dip-coating isobutylene-isoprene latex is carried out drying in boiled bed drying machine, after in isobutylene-isoprene latex, moisture evaporates, in boiled bed drying machine, sulfuration is carried out to the rubber layer of four acicular type zinc oxide crystal whisker surface dip-coating again, obtain the four acicular type zinc oxide crystal whisker of surface dip-coating last layer rubber layer; Four, the step described in above-mentioned first, second, third is repeated: join in the isobutylene-isoprene latex of recovery by the four acicular type zinc oxide crystal whisker of the surface dip-coating last layer rubber layer obtained, stir infiltration, centrifuging, fluidized drying, so repeatedly the rubber layer of 5 ~ 10 layers on four acicular type zinc oxide crystal whisker surface dip-coating;
It is 50 ~ 60 DEG C that the four acicular type zinc oxide crystal whisker of described surface dip-coating isobutylene-isoprene latex carries out dry temperature in boiled bed drying machine, and time of drying is 30 ~ 60 minutes;
Described temperature of carrying out sulfuration to the rubber layer of four acicular type zinc oxide crystal whisker surface dip-coating in boiled bed drying machine is 160 ~ 170 DEG C, curing time is 5 ~ 10 minutes;
Get the natural rubber that 100 weight parts are plasticated, add four acicular type zinc oxide crystal whisker 10 ~ 15 weight part of rubber layer on surface dip-coating, nano zine oxide 3 ~ 5 weight part, stearic acid 0.3 ~ 0.8 weight part, spray carbon black 15 ~ 20 weight part, anti-aging agent N-Phenyl beta naphthylamine 1 ~ 3 weight part, sulphur 2 ~ 3 weight part, accelerant disulfide benzothiazole 0.3 ~ 0.8 weight part; Evenly mixing; Vibration isolator metal die cavity is injected with injection transfer molding machine; To put under 150 ~ 160 DEG C of conditions sulfuration 15 ~ 20 minutes, obtain vibration isolator product.
2., according to the method described in claim 1, it is characterized in that each pin length of described four acicular type zinc oxide crystal whisker is 40 ~ 50 μm.
3., according to the method described in claim 1, it is characterized in that described isobutylene-isoprene latex weight percentage is 45 ~ 55%.
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| CN106051039B (en) * | 2016-06-28 | 2018-02-16 | 界首市华盛塑料机械有限公司 | Engine hydraulic shock bracket tube chamber welds with base assembly |
| CN106015442B (en) * | 2016-06-28 | 2018-10-26 | 界首市华盛塑料机械有限公司 | Engine hydraulic shock bracket |
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