CN108707256A - A kind of preparation method of thermo oxidative aging heat conduction yielding rubber - Google Patents
A kind of preparation method of thermo oxidative aging heat conduction yielding rubber Download PDFInfo
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- CN108707256A CN108707256A CN201810478795.5A CN201810478795A CN108707256A CN 108707256 A CN108707256 A CN 108707256A CN 201810478795 A CN201810478795 A CN 201810478795A CN 108707256 A CN108707256 A CN 108707256A
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Abstract
The present invention relates to a kind of preparation methods of thermo oxidative aging heat conduction yielding rubber, belong to macromolecule material preparation area.The present invention selects Neuraspora crassa bacterium powder to carry out fermentative degradation to Rapeseed Shell,Destroy the cellulose and macromolecular structure in Rapeseed Shell,Using in tannin reducing atmosphere oxygen and release hydrogen as hydrogen donor and combined with the free radical in environment,Terminate the chain reaction that free radical causes,Carbon fiber itself has high thermal conductivity,Heat conductivility is good,The path that can be conducted as heat is added in it,Aqueous polyurethane acrylate is added in rubber material the present invention,Utilize the hydroxyl contained in aqueous polyurethane,Amino,The hydrophilic functional groups such as carboxyl effectively absorb the hydrone in air,By urethane acrylate after silane coupler modified,The degree of adhesion with rubber material can be improved,Improve glue-joint strength,Effectively improve the intensity and impact resistance of rubber itself,To keep rubber more wear-resisting,Toughness improves,It has broad application prospects.
Description
Technical field
The present invention relates to a kind of preparation methods of thermo oxidative aging heat conduction yielding rubber, belong to high molecular material and prepare neck
Domain.
Background technology
One word of rubber derives from Indian, means " tree to shed tears ".Natural rubber is exactly when being tapped rubber by para ruber
The latex of outflow is made after solidifying, drying.Finished product after processing is the material with elasticity, insulating properties, impermeable water and air
Material.It is broadly divided into two kinds of natural rubber and synthetic rubber, and natural rubber is to extract colloid from the plants such as rubber tree, kok-saghyz
Post-processing is made.Synthetic rubber is then obtained by the aggregated reaction of various monomers.Rubber product is widely used in industry or life is each
Aspect.There is very extensive purposes.Rubber can also be divided into natural rubber, general purpose rubber, butadiene-styrene rubber, nitrile rubber, silicon in detail
Several classes of rubber, butadiene rubber, isoprene rubber, EP rubbers, neoprene.
Damping has important use in mechanical equipment, railroad track, ship, bridge, aerospace etc..Especially in recent years
Come, earthquake frequently occurs, directly or indirectly to society and damage naturally so that damping is particularly important.In damping
In material, rubber plays an increasingly important role, and is the direction of vibration-absorptive material development.Rubber damping damping property is influenced at present
Can the morphosis because being known as rubber material, the compatibility of blend rubber system each component, cross-linking system, temperature in use and shake
Dynamic frequency, polymer blending ratio, reinforcing filler and other auxiliary agents etc..Natural rubber is the product of biosynthesis, mainly at
It is divided into rubber hydrocarbon, also contains a small amount of protein, aliphatic acid etc..Its processing method is a variety of, the component content of obtained various NR
Differ, mechanical property, damping performance etc. are also variant.
It is set as the heavy constructions such as damper element, especially senior constructure, bridge, internal combustion engine, train head or machinery
Standby foundation shock absorption element, it is relatively difficult due to installing and replacing, it is costly, product generally require have it is longer use the longevity
Life, to reduce repair and renewal cost.In the various factors for influencing shock absorbing rubber product service life, thermo-oxidative ageing is most heavy
One of factor wanted.This is because rubber itself is the non-conductor of heat, the mechanical energy that damping is absorbed is after being converted into thermal energy
It cannot be dissipated in time, therefore rubber will heat up, and the raising of temperature is in addition to so that the performance of rubber product is declined, it is more main
What is wanted is the thermo-oxidative ageing process that will greatly accelerate rubber product, so as to shorten its service life, and the heat conduction of rubber itself
Property is poor.Therefore, it invents a kind of thermo oxidative aging and the good yielding rubber of thermal conductivity has field of polymer material preparing technology
Positive effect.
Invention content
The technical problems to be solved by the invention：Rubber is caused for the inner product thermal conductivity generated in current yielding rubber deformation process
Glue thermo-oxidative ageing and rubber itself do not have the defect of thermal conductivity, provide a kind of preparation of thermo oxidative aging heat conduction yielding rubber
Method.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of preparation method of thermo oxidative aging heat conduction yielding rubber, it is characterised in that specifically preparation process is：
（1）Rapeseed Shell and rough neurospora bacterium powder and water are fitted into ceramic pot open placement, after sealed ceramic jar, standing
Degradation reaction 7~10 days, is obtained by filtration filtrate after reaction, spare；
（2）Carbon fiber is immersed into 2.0~2.5h in salpeter solution, then carbon fiber is taken out, is washed with deionized 3~5 times,
Then carbon fiber is put into dryer and is dried to obtain pretreatment carbon fiber；
（3）It is put into reaction kettle after above-mentioned pretreatment carbon fiber is mixed with spare filtrate, seals placement 5~7 days, after reaction
Filter cake is obtained by filtration, filter cake is put into be cleaned by ultrasonic in instrument and is cleaned, obtains modified carbon fiber after cleaning after natural drying, it is standby
With；
（4）Count in parts by weight, by 20~30 parts of isophorone diisocyanates, 30~40 parts of N- crassitudes, 10~15 parts
Polycaprolactone diols, 4~6 parts of dihydromethyl propionic acids, 4~6 parts of trimethylolpropanes and 1~3 part of dibutyl tin laurate
It puts into beaker, beaker is placed in isothermal reaction in water-bath and obtains mixed liquor；
（5）Count in parts by weight, by 25~30 portions of above-mentioned mixed liquors, 6~8 parts of γ-aminopropyltrimethoxysilanes, 15~18 parts
Hydroxy-ethyl acrylate is put into beaker, then beaker is placed in 1.5~1.8h of isothermal reaction postcoolings in water-bath and is instilled to room temperature
Triethylamine adjusts pH value to 6.8~7.2, stirs to get reaction solution.
（6）Open mill is switched on and is preheated, is counted in parts by weight, 100~110 parts of nitrile rubbers are added and plasticate 1~2h, then add
Enter 2~4 parts of sulphur, 1.5~3.5 parts of stearic acid, 5~6 parts of spare modified carbon fibers, 5~6 parts of above-mentioned reaction solutions, 35~40
Part carbon black, obtained rubber compound after to be mixed；
（7）Mold is preheated, after above-mentioned rubber compound is placed at room temperature, cuts and is put into preheated mold, mold is put into
It pressurizes, keeps the temperature on vulcanizing press, discharging obtains thermo oxidative aging heat conduction yielding rubber.
Step（1）Described in Rapeseed Shell and Neuraspora crassa bacterium powder and the mass ratio of water be 10:1:10, ceramic pot is spacious
Mouth placement temperature is 20~25 DEG C, the time is 2~3 days, and sealed ceramic jar temperature is 30~40 DEG C.
Step（2）Described in salpeter solution mass fraction be 20%, dryer temperature is 60~80 DEG C, and drying time is
2~4h.
Step（3）Described in the mass ratio of pretreatment carbon fiber and spare filtrate be 1:1, sealing place temperature be 35~
45 DEG C, the frequency for being cleaned by ultrasonic instrument is 25~30kHz, and scavenging period is 30~40min.
Step（4）Described in water-bath pot temperature be 75~85 DEG C, the isothermal reaction time be 1.8~2.2h.
Step（5）Described in water-bath pot temperature be 75~85 DEG C, speed of agitator be 600~800r/min, mixing time
For 40~50min.
Step（6）Described in open mill booting preheating temperature be 30~40 DEG C, mixing time be 30~35min.
Step（7）Described in standing time at room temperature be 20~for 24 hours, vulcanizing press moulding pressure be 18~20MPa,
Soaking time is 1~2h, and holding temperature is 40~45 DEG C.
The method have the benefit that：
（1）The invention firstly uses Neuraspora crassa bacterium powders to carry out fermentative degradation, then the filtrate pair with degradation gained to Rapeseed Shell
Carbon fiber is modified, and then produces urethane acrylate solution, and put into it is silane coupler modified, finally will modified carbon fiber
Thermo oxidative aging heat conduction yielding rubber is prepared as raw material in peacekeeping modified urethane acrylate solution, and the present invention selects thick
Rough neurospora bacterium powder carries out fermentative degradation to Rapeseed Shell, destroys cellulose and macromolecular structure in Rapeseed Shell, extracts wherein
Tannin ingredient, and generate metallothionein ingredient and other active groups using Neuraspora crassa during fermentative degradation
Group and organic principle, using in tannin reducing atmosphere oxygen and release as hydrogen donor the free base junction in hydrogen and environment
It closes, terminates the chain reaction that free radical causes, to prevent continuing to transmit and carrying out, while Neuraspora crassa bacterium for oxidation process
The metallothionein that powder generates has the ability of efficient scavenging activated oxygen, further increases the oxidation resistance of rubber material,
Carbon fiber is introduced into yielding rubber simultaneously, so that carbon fiber is formed dimensional network structure in rubber material, to improve rubber
The intensity of glue material, carbon fiber itself have high thermal conductivity, and heat conductivility is good, its addition can be used as heat to conduct
Path, so that the heat conductivility of rubber is obviously improved, the interior accumulated heat generated during rubber deformation can be effectively exported, into one
Step prevents thermo-oxidative ageing, and improves the heat dissipation performance of rubber；
（2）Aqueous polyurethane acrylate is added in rubber material the present invention, utilizes hydroxyl, the ammonia contained in aqueous polyurethane
The hydrophilic functional groups such as base, carboxyl effectively absorb the hydrone in air, and are absorbed in rubber deformation and generated by moisture evaporation
Interior accumulated heat, effectively prevent the thermo-oxidative ageing of rubber, by urethane acrylate after silane coupler modified, can improve
With the degree of adhesion of rubber material, glue-joint strength is improved, the intensity and impact resistance of rubber itself are effectively improved, to make rubber more
Add it is wear-resisting, toughness improve, have broad application prospects.
Specific implementation mode
It is 10 in mass ratio by Rapeseed Shell and Neuraspora crassa bacterium powder and water:1:It is fitted into ceramic pot after 10 mixing, first
Ceramic pot opening is placed under conditions of temperature is 20~25 DEG C and stands 2~3 days, sealed ceramic jar mouth after standing,
Temperature is to continue to stand reaction 7~10 days at 30~40 DEG C, after reaction, filtrate is obtained by filtration, spare；Carbon fiber is immersed
In the salpeter solution that mass fraction is 20% after 2.0~2.5h, carbon fiber is taken out, cleans carbon fiber 3 repeatedly with deionized water
~5 times, carbon fiber is then put into dryer at 60~80 DEG C dry 2~4h, obtains pretreatment carbon fiber；It will be above-mentioned pre-
Treatment of Carbon is 1 in mass ratio with spare filtrate:1 mixing, is added in reaction kettle, the sealing reaction 5~7 at 35~45 DEG C
It, is obtained by filtration filter cake, and filter cake is put into and is cleaned by ultrasonic in instrument, is cleaned with the frequency ultrasound of 25~30kHz after the completion of reaction
30~40min, naturally dry after cleaning obtain modified carbon fiber, spare；It counts in parts by weight, by 20~30 parts of Fo Er
Ketone diisocyanate, 30~40 parts of N- crassitudes, 10~15 parts of polycaprolactone diolss, 4~6 parts of dihydromethyl propionic acids, 4
In~6 parts of trimethylolpropanes and 1~3 part of dibutyl tin laurate input beaker, beaker is placed in 75~85 DEG C of water-bath
1.8~2.2h of isothermal reaction in pot, obtains mixed liquor；It counts in parts by weight, by 25~30 portions of above-mentioned mixed liquors, 6~8 parts of γ-
In aminopropyl trimethoxysilane, 15~18 parts of hydroxy-ethyl acrylate input beakers, beaker is placed in 75~85 DEG C of water-bath
Middle 1.5~1.8h of isothermal reaction postcoolings instill triethylamine and adjust pH to 6.8~7.2, with 600~800r/min's to room temperature
Rotating speed stirs 40~50min, obtains reaction solution；Open mill booting is preheated to 30~40 DEG C, counts in parts by weight, is added 100
~110 parts of nitrile rubbers are plasticated 1~2h, and 2~4 parts of sulphur, 1.5~3.5 parts of stearic acid, 5~6 parts of spare carbon modifieds are added
Rubber compound is made after 30~35min to be mixed for fiber, 5~6 parts of above-mentioned reaction solutions, 35~40 parts of carbon blacks；Mold is preheating to 50
~60 DEG C, above-mentioned rubber compound at room temperature place 20~for 24 hours after, cut and be put into mold, mold is put into vulcanizing press
On be forced into 18~20MPa, and 1~2h is kept the temperature at 40~45 DEG C, discharging obtains thermo oxidative aging heat conduction yielding rubber.
It is 10 in mass ratio by Rapeseed Shell and Neuraspora crassa bacterium powder and water:1:It is fitted into ceramic pot after 10 mixing, first
Ceramic pot opening is placed under conditions of temperature is 20 DEG C and stands 2 days, sealed ceramic jar mouth after standing is 30 in temperature
Continue to stand reaction 7 days at DEG C, after reaction, filter to get filtrate, it is spare；Carbon fiber is immersed into the nitre that mass fraction is 20%
In acid solution after 2.0h, carbon fiber is taken out, cleans carbon fiber repeatedly with deionized water 3 times, carbon fiber is then put into drying
2h is dried in machine at 60 DEG C, obtains pretreatment carbon fiber；It is 1 in mass ratio by above-mentioned pretreatment carbon fiber and spare filtrate:1
Mixing is added in reaction kettle, and sealing reaction 5 days, are obtained by filtration filter cake, and filter cake is put into ultrasound after the completion of reaction at 35 DEG C
In cleaning device, 30min is cleaned with the frequency ultrasound of 25kHz, naturally dry after cleaning obtains modified carbon fiber, spare；It presses
Parts by weight meter, by 20 parts of isophorone diisocyanates, 30 parts of N- crassitudes, 10 parts of polycaprolactone diolss, 4 parts of dihydroxies
In methylpropanoic acid, 4 parts of trimethylolpropanes and 1 part of dibutyl tin laurate input beaker, beaker is placed in 75 DEG C of water-bath
Isothermal reaction 1.8h in pot, obtains mixed liquor；It counts in parts by weight, by 25 portions of above-mentioned mixed liquors, 6 parts of γ-aminopropyl trimethoxy
In silane, 15 parts of hydroxy-ethyl acrylates input beakers, beaker is placed in 75 DEG C of water-bath isothermal reaction 1.5h postcoolings extremely
Room temperature, instills triethylamine and adjusts pH to 6.8, stirs 40min with the rotating speed of 600r/min, obtains reaction solution；Open mill is switched on
Be preheated to 30 DEG C, count in parts by weight, 100 parts of nitrile rubbers are added and plasticate 1h, add 2 parts of sulphur, 1.5 parts of stearic acid, 5 parts
Rubber compound is made after 30min to be mixed in spare modified carbon fiber, 5 parts of above-mentioned reaction solutions, 35 parts of carbon blacks；Mold is preheated
To 50 DEG C, after above-mentioned rubber compound is placed 20h at room temperature, cuts and be put into mold, mold is put on vulcanizing press
It is forced into 18MPa, and keeps the temperature 1h at 40 DEG C, discharging obtains thermo oxidative aging heat conduction yielding rubber.
It is 10 in mass ratio by Rapeseed Shell and Neuraspora crassa bacterium powder and water:1:It is fitted into ceramic pot after 10 mixing, first
Ceramic pot opening is placed under conditions of temperature is 22 DEG C and stands 2 days, sealed ceramic jar mouth after standing is 35 in temperature
Continue to stand reaction 9 days at DEG C, after reaction, filter to get filtrate, it is spare；Carbon fiber is immersed into the nitre that mass fraction is 20%
In acid solution after 2.2h, carbon fiber is taken out, cleans carbon fiber repeatedly with deionized water 4 times, carbon fiber is then put into drying
3h is dried in machine at 70 DEG C, obtains pretreatment carbon fiber；It is 1 in mass ratio by above-mentioned pretreatment carbon fiber and spare filtrate:1
Mixing is added in reaction kettle, and sealing reaction 6 days, are obtained by filtration filter cake, and filter cake is put into ultrasound after the completion of reaction at 40 DEG C
In cleaning device, 35min is cleaned with the frequency ultrasound of 27kHz, naturally dry after cleaning obtains modified carbon fiber, spare；It presses
Parts by weight meter, by 25 parts of isophorone diisocyanates, 35 parts of N- crassitudes, 12 parts of polycaprolactone diolss, 5 parts of dihydroxies
In methylpropanoic acid, 5 parts of trimethylolpropanes and 2 parts of dibutyl tin laurate input beakers, beaker is placed in 80 DEG C of water-bath
Isothermal reaction 2.0h in pot, obtains mixed liquor；It counts in parts by weight, by 27 portions of above-mentioned mixed liquors, 7 parts of γ-aminopropyl trimethoxy
In silane, 17 parts of hydroxy-ethyl acrylates input beakers, beaker is placed in 80 DEG C of water-bath isothermal reaction 1.7h postcoolings extremely
Room temperature, instills triethylamine and adjusts pH to 7.0, stirs 45min with the rotating speed of 700r/min, obtains reaction solution；Open mill is switched on
35 DEG C are preheated to, is counted in parts by weight, 105 parts of nitrile rubbers are added and plasticate 1.5h, add 3 parts of sulphur, 2.5 parts of stearic acid, 5
Rubber compound is made after 32min to be mixed in part spare modified carbon fiber, 5 parts of above-mentioned reaction solutions, 37 parts of carbon blacks；Mold is pre-
Heat is to 55 DEG C, after above-mentioned rubber compound is placed 22h at room temperature, cuts and is put into mold, mold is put into vulcanizing press
On be forced into 19MPa, and 1.5h is kept the temperature at 42 DEG C, discharging obtains thermo oxidative aging heat conduction yielding rubber.
It is 10 in mass ratio by Rapeseed Shell and Neuraspora crassa bacterium powder and water:1:It is fitted into ceramic pot after 10 mixing, first
Ceramic pot opening is placed under conditions of temperature is 25 DEG C and stands 3 days, sealed ceramic jar mouth after standing is 40 in temperature
Continue to stand reaction 10 days at DEG C, after reaction, filter to get filtrate, it is spare；It is 20% that carbon fiber, which is immersed mass fraction,
In salpeter solution after 2.5h, carbon fiber is taken out, cleans carbon fiber repeatedly with deionized water 5 times, carbon fiber is then put into baking
4h is dried in dry machine at 80 DEG C, obtains pretreatment carbon fiber；It is in mass ratio with spare filtrate by above-mentioned pretreatment carbon fiber
1:1 mixing, is added in reaction kettle, and sealing reaction 7 days, are obtained by filtration filter cake, and filter cake is put into after the completion of reaction at 45 DEG C
It is cleaned by ultrasonic in instrument, 40min is cleaned with the frequency ultrasound of 30kHz, naturally dry after cleaning obtains modified carbon fiber, standby
With；It counts in parts by weight, by 30 parts of isophorone diisocyanates, 40 parts of N- crassitudes, 15 parts of polycaprolactone diolss, 6
In part dihydromethyl propionic acid, 6 parts of trimethylolpropanes and 3 parts of dibutyl tin laurates input beakers, beaker is placed in 85 DEG C
Water-bath in isothermal reaction 2.2h, obtain mixed liquor；It counts in parts by weight, by 30 portions of above-mentioned mixed liquors, 8 parts of γ-aminopropyls three
In methoxy silane, 18 parts of hydroxy-ethyl acrylate input beakers, beaker is placed in isothermal reaction 1.8h in 85 DEG C of water-bath
Postcooling instills triethylamine and adjusts pH to 7.2 to room temperature, stirs 50min with the rotating speed of 800r/min, obtains reaction solution；It will open
Mill booting is preheated to 40 DEG C, counts in parts by weight, and 110 parts of nitrile rubbers are added and plasticate 2h, add 4 parts of sulphur, 3.5 parts it is hard
Rubber compound is made after 35min to be mixed in resin acid, 6 parts of spare modified carbon fibers, 6 parts of above-mentioned reaction solutions, 40 parts of carbon blacks；It will
Mold is preheating to 60 DEG C, after above-mentioned rubber compound is placed for 24 hours at room temperature, cuts and is put into mold, mold is put into tablet
It is forced into 20MPa on vulcanizer, and keeps the temperature 2h at 45 DEG C, discharging obtains thermo oxidative aging heat conduction yielding rubber.
Comparative example is as a comparison case made the present invention with the thermo oxidative aging heat conduction yielding rubber that Wuxi company produces
Thermo oxidative aging heat conduction yielding rubber and comparative example in thermo oxidative aging heat conduction yielding rubber carry out performance detection, detection knot
Fruit is as shown in table 1：
Test method：
Fatigue performance detects：
According to GB 9870-88 standards, static load is 500 newton, and dynamic load is 1000 newton, and loading direction is X-axis side
To frequency is 4 hertz, detects the fatigue performance of yielding rubber, the results are shown in Table 1；
Tensile property detects：
Yielding rubber is cut into dumbbell shaped standard film according to 1 type dumbbell shaped cut-off knife specified in GB/T528-92, in test temperature
It it is 25 DEG C, hauling speed is under conditions of 500 mm/mins, test tensile strength and elongation at break, the results are shown in Table 1；
Thermal-oxidative aging property detects：
According to GB 3512-83 standards, the thermal-oxidative aging property of yielding rubber is detected, temperature is 70 DEG C, and the time is 48 hours, knot
Fruit is as shown in table 1；
Thermal conductivity test is detected by the standard of ASTM D-5470.
1 yielding rubber performance measurement result of table
Good, the thermo-oxidative ageing according to the thermo oxidative aging heat conduction yielding rubber fatigue performance produced by the present invention of data among the above
Tensile strength and elongation at break afterwards is high, and thermo oxidative aging performance is good, and thermal conductivity is high, good heat conductivity, has wide answer
Use foreground.
Claims (8)
1. a kind of preparation method of thermo oxidative aging heat conduction yielding rubber, it is characterised in that specifically preparation process is：
（1）Rapeseed Shell and rough neurospora bacterium powder and water are fitted into ceramic pot open placement, after sealed ceramic jar, standing
Degradation reaction 7~10 days, is obtained by filtration filtrate after reaction, spare；
（2）Carbon fiber is immersed into 2.0~2.5h in salpeter solution, then carbon fiber is taken out, is washed with deionized 3~5 times,
Then carbon fiber is put into dryer and is dried to obtain pretreatment carbon fiber；
（3）It is put into reaction kettle after above-mentioned pretreatment carbon fiber is mixed with spare filtrate, seals placement 5~7 days, after reaction
Filter cake is obtained by filtration, filter cake is put into be cleaned by ultrasonic in instrument and is cleaned, obtains modified carbon fiber after cleaning after natural drying, it is standby
With；
（4）Count in parts by weight, by 20~30 parts of isophorone diisocyanates, 30~40 parts of N- crassitudes, 10~15 parts
Polycaprolactone diols, 4~6 parts of dihydromethyl propionic acids, 4~6 parts of trimethylolpropanes and 1~3 part of dibutyl tin laurate
It puts into beaker, beaker is placed in isothermal reaction in water-bath and obtains mixed liquor；
（5）Count in parts by weight, by 25~30 portions of above-mentioned mixed liquors, 6~8 parts of γ-aminopropyltrimethoxysilanes, 15~18 parts
Hydroxy-ethyl acrylate is put into beaker, then beaker is placed in 1.5~1.8h of isothermal reaction postcoolings in water-bath and is instilled to room temperature
Triethylamine adjusts pH value to 6.8~7.2, stirs to get reaction solution；
（6）Open mill is switched on and is preheated, is counted in parts by weight, 100~110 parts of nitrile rubbers are added and plasticate 1~2h, add 2
~4 parts of sulphur, 1.5~3.5 parts of stearic acid, 5~6 parts of spare modified carbon fibers, 5~6 parts of above-mentioned reaction solutions, 35~40 parts of charcoals
It is black, obtained rubber compound after to be mixed；
（7）Mold is preheated, after above-mentioned rubber compound is placed at room temperature, cuts and is put into preheated mold, mold is put into
It pressurizes, keeps the temperature on vulcanizing press, discharging obtains thermo oxidative aging heat conduction yielding rubber.
2. a kind of preparation method of thermo oxidative aging heat conduction yielding rubber according to claim 1, it is characterised in that：Step
（1）Described in Rapeseed Shell and Neuraspora crassa bacterium powder and the mass ratio of water be 10:1:10, ceramic pot opening places temperature and is
20~25 DEG C, the time be 2~3 days, sealed ceramic jar temperature be 30~40 DEG C.
3. a kind of preparation method of thermo oxidative aging heat conduction yielding rubber according to claim 1, it is characterised in that：Step
（2）Described in salpeter solution mass fraction be 20%, dryer temperature be 60~80 DEG C, drying time be 2~4h.
4. a kind of preparation method of thermo oxidative aging heat conduction yielding rubber according to claim 1, it is characterised in that：Step
（3）Described in the mass ratio of pretreatment carbon fiber and spare filtrate be 1:1, it is 35~45 DEG C that temperature is placed in sealing, and ultrasound is clear
The frequency for washing instrument is 25~30kHz, and scavenging period is 30~40min.
5. a kind of preparation method of thermo oxidative aging heat conduction yielding rubber according to claim 1, it is characterised in that：Step
（4）Described in water-bath pot temperature be 75~85 DEG C, the isothermal reaction time be 1.8~2.2h.
6. a kind of preparation method of thermo oxidative aging heat conduction yielding rubber according to claim 1, it is characterised in that：Step
（5）Described in water-bath pot temperature be 75~85 DEG C, speed of agitator be 600~800r/min, mixing time be 40~50min.
7. a kind of preparation method of thermo oxidative aging heat conduction yielding rubber according to claim 1, it is characterised in that：Step
（6）Described in open mill booting preheating temperature be 30~40 DEG C, mixing time be 30~35min.
8. a kind of preparation method of thermo oxidative aging heat conduction yielding rubber according to claim 1, it is characterised in that：Step
（7）Described in standing time at room temperature be 20~for 24 hours, vulcanizing press moulding pressure be 18~20MPa, soaking time 1
~2h, holding temperature are 40~45 DEG C.
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Citations (2)
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|---|---|---|---|---|
| CN1130687A (en) * | 1995-03-07 | 1996-09-11 | 戴根春 | Process for preparing metallothionein |
| US20040006170A1 (en) * | 2002-03-08 | 2004-01-08 | Stanislaw Haftka | Compositions comprising elastomers and high-molecular-weight polyethylenes with irregular particle shape, process for their preparation, and their use |
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|---|---|---|---|---|
| CN1130687A (en) * | 1995-03-07 | 1996-09-11 | 戴根春 | Process for preparing metallothionein |
| US20040006170A1 (en) * | 2002-03-08 | 2004-01-08 | Stanislaw Haftka | Compositions comprising elastomers and high-molecular-weight polyethylenes with irregular particle shape, process for their preparation, and their use |
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