CN109181040A - A kind of preparation method of Rubber shock-absorbing pad - Google Patents
A kind of preparation method of Rubber shock-absorbing pad Download PDFInfo
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- CN109181040A CN109181040A CN201811098698.XA CN201811098698A CN109181040A CN 109181040 A CN109181040 A CN 109181040A CN 201811098698 A CN201811098698 A CN 201811098698A CN 109181040 A CN109181040 A CN 109181040A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L15/00—Compositions of rubber derivatives
- C08L15/005—Hydrogenated nitrile rubber
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
- C08K2003/2275—Ferroso-ferric oxide (Fe3O4)
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention discloses a kind of preparation methods of Rubber shock-absorbing pad, belong to technical field of polymer materials.Rice hull cellulose, secondary settling tank sludge, sucrose, water mixed fermentation are subsequently added into ferric chloride solution, are stirred by the present invention, are subsequently added into ammonium hydroxide and are adjusted pH, filter, wash, dry, and heat preservation charing obtains pretreatment rice hull cellulose；Pretreatment rice hull cellulose is passed through into water vapour high-temperature process, it is dry, obtain modified rice hull cellulose；First hydrogenated nitrile-butadiene rubber is plasticated, adds natural resin, modified rice hull cellulose, modified additive, vulcanizing agent, promotor, anti-aging agent, plasticizer is kneaded, and applies external magnetic field in mixing process, end to be mixed, extrusion molding, vulcanization discharge to get Rubber shock-absorbing pad.The Rubber shock-absorbing pad of technical solution of the present invention preparation has the characteristics that excellent damping performance and ageing-resistant performance.
Description
Technical field
The invention discloses a kind of preparation methods of Rubber shock-absorbing pad, belong to technical field of polymer materials.
Background technique
Current modern industry is fast-developing, and vibration has become the problem of seriously affecting every field, for example, environmental vibration
Jeopardize the security and stability of building especially high-rise, the accuracy of industrial vibration influence equipment and instrument, Yi Xiezhen
The raw consequence of movable property directly will constitute grave danger to the person and property safety.The vibration for reducing or eliminating vibroseis is to eliminate
The most fundamental and best approach is shaken, but according to the actual fact, which can not completely eliminate, therefore should be from other ways
Diameter is started with.Currently, rubber damping product is wherein important composition portion using the various anti-vibration articles of application as main method in industry
Point.
The characteristics of Rubber shock-absorbing pad is existing high resiliency, and has high viscosity.The elasticity of rubber is by its coiled molecule conformation
Variation generate, between rubber molecule interaction can interfere the movement of strand, thus the characteristics of showing viscous damping, with
Stress and strain is caused often to be in non-equilibrium state.The long-chain molecule structure of this curling of rubber and intermolecular existing weaker
Secondary power；Enable rubber material to show unique viscoelasticity, thus there is good damping, sound insulation and cushion performance.
Rubber components is widely used in isolation vibration and absorbs impact, exactly because it has lag, damps and can be carried out reversible large deformation
The characteristics of.The elasticity of rubber has both the feature of elasticity and viscosity, also known as viscoplasticity.Elasticity is derived from its long-chain molecule crimped
Conformation change, but the movement of long-chain molecule is by the obstruction to interact between rubber molecule, therefore shows viscosity again, and this is also
The unbalanced reason of rubber stress and strain.This viscoplasticity enables rubber have good damping and cushion performance, can be effective
Ground isolation vibration object and slow down vibration body vibration, therefore be widely used in the various vehicles, instrument and equipment, bridge,
The damping of building.
And traditional Rubber shock-absorbing pad the problem of can not being further increased there is also damping performance and ageing-resistant performance.Therefore,
The shortcomings that how improving traditional Rubber shock-absorbing pad, to obtain the promotion of more high combination property, be its promote with applied to broader
Field, meet industrial production demand urgent problem to be solved.
Summary of the invention
The present invention solves the technical problem of: it can not for traditional Rubber shock-absorbing pad damping performance and ageing-resistant performance
The problem of further increasing provides a kind of preparation method of Rubber shock-absorbing pad.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that:
A kind of preparation method of Rubber shock-absorbing pad, specific preparation process is as follows:
(1) according to parts by weight, by 10~20 parts of rice hull celluloses, 2~3 parts of secondary settling tank sludge, 0.3~0.5 portion of sucrose, 20~30
Part water mixed fermentation, is subsequently added into 0.2~0.3 times of rice hull cellulose quality of ferric chloride solution, is stirred, is subsequently added into ammonium hydroxide
PH to 8.1~8.3 is adjusted, is filtered, is washed, dry, heat preservation charing obtains pretreatment rice hull cellulose；
(2) pretreatment rice hull cellulose is passed through into water vapour high-temperature process, it is dry, obtain modified rice hull cellulose；
(3) according to parts by weight, 80~100 parts of hydrogenated nitrile-butadiene rubbers, 20~30 parts of natural rubbers, 10~20 parts of modifications are successively taken
Rice hull cellulose, 10~20 parts of modified additives, 3~5 parts of vulcanizing agents, 1~3 part of promotor, 2~4 parts of anti-aging agents, 1~4 part of plasticising
Agent first plasticates hydrogenated nitrile-butadiene rubber, adds natural resin, modified rice hull cellulose, modified additive, vulcanizing agent, promotor,
Anti-aging agent, plasticizer are kneaded, and apply external magnetic field in mixing process, end to be mixed, extrusion molding, vulcanization, discharging to get
Rubber shock-absorbing pad.
Step (2) the water vapour high-temperature process condition are as follows: steam temperature be 260~280 DEG C, processing the time be 1~
2h。
The preparation process of step (3) the modified additive are as follows: according to parts by weight, by 8~10 parts of white carbon blacks, 5~8 parts
Carbon black, 3~5 parts of silver nitrates, 3~5 parts of ammonium chlorides, 30~40 parts of water mixing and ball millings obtain No. 1 mixed liquor, according to parts by weight, will
20~30 parts of acrylonitrile, 5~8 parts of azodiisobutyronitriles, 5~8 parts of pentanes, 5~8 parts of methyl methacrylate mixing ultrasounds,
Obtain No. 2 mixed liquors；No. 2 mixed liquors and No. 1 mixed liquor 1:5~1:10 low-temperature and high-speed in mass ratio are sheared, nitrogen charging high pressure heat-preserving
Reaction, cooling, pressure release discharge, and filter, and washing obtains modified additive.
Step (3) vulcanizing agent is sulphur, any one in sulfur monochloride or benzoyl peroxide.
Step (3) promotor is accelerator M, any one in accelerator ZBX or accelerator DM D
Kind.
Step (3) anti-aging agent is antioxidant 4010, any one in anti-aging agent RD or antioxidant 4020.
Step (3) the plasticizer is dibutyl phthalate, in octyl epoxy stearate or dioctyl adipate
Any one.
The beneficial effects of the present invention are:
The present invention is modified rice hull cellulose and modified additive by adding, firstly, in modified rice hull cellulose preparation process, rice husk
Fiber decomposes the part organic matter in rice hull cellulose through everfermentation, using the enzyme that microorganism generates, so that the knot between fibrocyte
It closes intensity further to decline, the iron chloride that the later period is added penetrates between fibrocyte, then by the way that ammonium hydroxide tune is added dropwise
PH is saved, so that fibrous inside deposits iron hydroxide, then, in heat preservation carbonization process, the iron hydroxide deposited in the fibre is lost
Water generates iron oxide, and as temperature continues to increase, the carbonaceous in system is reacted with iron oxide, so that iron oxide is reduced into list
Matter iron, meanwhile, the organic matter charing in system is shunk in carbonization process, and the fire-retardant contraction of silicrete on rice hull cellulose surface,
So that helix-coil occurs for fiber, the curved modification rice hull cellulose of helical coil is dispersed in system, so that the damping effect of system
It gets a promotion, then, in vapor high-temperature process, the fe in system is reacted with vapor, four oxidations of generation
Three-iron, secondly, in use, the heated volatilization of the organic solvent coated in modified additive increases its volume, a side
Face increases the elasticity of system, so that the damping effect of system is further promoted, on the other hand, volume expansion makes modified rice
The enhancing network structure that case fibre is squeezed power formation oriented alignment will convert to effectively improve the heating conduction of system
The thermal energy fast dissipation of formation, avoids thermal energy buildup from causing rubber thermo-oxidative ageing inside system, again, in the work of externally-applied magnetic field
Under, so that the active force in the ferroso-ferric oxide magnetic field in modified rice hull cellulose, further deepens the spiral of modified rice hull cellulose,
To further improve the damping effect of system.
Specific embodiment
According to parts by weight, by 8~10 parts of white carbon blacks, 5~8 parts of carbon blacks, 3~5 parts of silver nitrates, 3~5 parts of ammonium chlorides, 30
~40 parts of water are placed in 30~50min of ball milling mixing in ball mill, obtain No. 1 mixed liquor；According to parts by weight, by 20~30 parts of propylene
Nitrile, 5~8 parts of azodiisobutyronitriles, 5~8 parts of pentanes, 5~8 parts of methyl methacrylates are placed in No. 1 beaker, and by No. 1
Beaker is placed in ultrasonic disperse instrument, under the conditions of supersonic frequency is 55~75kHz, is mixed 30~50min of ultrasound, is obtained No. 2 mixing
Liquid；By No. 2 mixed liquors and No. 1 mixed liquor 1:5~1:8 in mass ratio be placed in shearing homogenizer in, in temperature be 1~10 DEG C of condition
Under, low-temperature and high-speed shears 5~10min, obtains homogeneous mixed liquor, then homogeneous mixed liquor is placed in autoclave, and with 60
~90mL/min rate is filled with nitrogen into reaction kettle, and in 0.6~0.9MPa of pressure, temperature is 60~70 DEG C, and nitrogen charging heat preservation is protected
After 30~50min of pressure reaction, reaction under high pressure temperature in the kettle is cooled to room temperature, opens valve pressure release, discharging obtains mixed serum,
Mixed serum is filtered again, obtains filter cake, Washing of Filter Cake 5~8 is then obtained into modified additive with deionized water；In parts by weight
Meter, by 10~20 parts of rice hull celluloses, 2~3 parts of secondary settling tank sludge, 0.3~0.5 portion of sucrose, 20~30 parts of water are placed in fermentation cauldron,
It is 30~35 DEG C in temperature, under the conditions of revolving speed is 100~200r/min, fermentation is stirred 3~5 days, then into fermentation cauldron
Be added 0.2~0.3 times of mass fraction of rice hull cellulose quality be 10~20% ferric chloride solution, in revolving speed be 300~500r/min
Under the conditions of, it is stirred 40~60min, the ammonium hydroxide that mass fraction is 20~30% is then added into fermentation cauldron and adjusts pH to 8.1
~8.3, mixed slurry is obtained, then mixed slurry is filtered, filter residue, then with deionized water by residue washing 5~8 times, then will
Filter residue after washing is placed in baking oven, dry to constant weight under the conditions of temperature is 105~110 DEG C, is obtained dry filter residue, then will
Dry filter residue is placed in retort, and nitrogen is filled with into furnace with 120~130mL/min rate, in temperature be 1000~1150
Under the conditions of DEG C, heat preservation 2~3h of charing obtains pretreatment rice hull cellulose；Pretreatment rice hull cellulose is placed in reaction kettle, then to anti-
It answers and is passed through water vapour in kettle, under the conditions of temperature is 260~280 DEG C, 1~2h of high-temperature process obtains steam treatment material, will then steam
Vapour processing material is placed in baking oven, dry to constant weight under the conditions of temperature is 105~110 DEG C, obtains modified rice hull cellulose；By weight
Number meter, successively takes 80~100 parts of hydrogenated nitrile-butadiene rubbers, 20~30 parts of natural rubbers, 10~20 parts of modified rice hull celluloses, 10~
20 parts of modified additives, 3~5 parts of vulcanizing agents, 1~3 part of promotor, 2~4 parts of anti-aging agents, 1~4 part of plasticizer will first hydrogenate fourth
Nitrile rubber is placed in open mill, and under the conditions of temperature is 40~80 DEG C, plasticate 10~15min, then is added naturally into plasticator
Resin, modified rice hull cellulose, modified additive, vulcanizing agent, promotor, anti-aging agent, plasticizer, in temperature be 130~160 DEG C of items
It is kneaded 5~15min under part, in mixing process, the external magnetic field that intensity is 40~50T is applied to material in open mill, it is to be mixed
Terminate, obtains rubber compound, rubber compound is placed in extrusion molding in double screw extruder, obtain blank, and gained blank is transferred to plate
In vulcanizer, under the conditions of temperature is 180~200 DEG C, vulcanizes 45~60min, discharge to get Rubber shock-absorbing pad.The vulcanization
Agent is sulphur, any one in sulfur monochloride or benzoyl peroxide.The promotor is accelerator M, vulcanization accelerator
Any one in ZBX or accelerator DM D.The anti-aging agent is antioxidant 4010, is appointed in anti-aging agent RD or antioxidant 4020
It anticipates one kind.The plasticizer is dibutyl phthalate, any one in octyl epoxy stearate or dioctyl adipate.
Example 1
According to parts by weight, by 10 parts of white carbon blacks, 8 parts of carbon blacks, 5 parts of silver nitrates, 5 parts of ammonium chlorides, 40 parts of water are placed in ball mill
Ball milling mixing 50min obtains No. 1 mixed liquor；According to parts by weight, by 30 parts of acrylonitrile, 8 parts of azodiisobutyronitriles, 8 parts positive penta
Alkane, 8 parts of methyl methacrylates are placed in No. 1 beaker, and No. 1 beaker is placed in ultrasonic disperse instrument, are in supersonic frequency
Under the conditions of 75kHz, ultrasound 50min is mixed, No. 2 mixed liquors are obtained；No. 2 mixed liquors are placed in No. 1 mixed liquor 1:8 in mass ratio and are cut
It cuts in homogenizer, under the conditions of temperature is 10 DEG C, low-temperature and high-speed shears 10min, homogeneous mixed liquor is obtained, then by homogeneous mixed liquor
It is placed in autoclave, and nitrogen is filled with into reaction kettle with 90mL/min rate, in pressure 0.9MPa, temperature is 70 DEG C,
After nitrogen charging heat-insulation pressure keeping reacts 50min, reaction under high pressure temperature in the kettle is cooled to room temperature, opens valve pressure release, discharging must mix
Slurries, then mixed serum is filtered, filter cake is obtained, Washing of Filter Cake 8 is then obtained into modified additive with deionized water；By weight
Number meter, by 20 parts of rice hull celluloses, 3 parts of secondary settling tank sludge, 0.5 portion of sucrose, 30 parts of water are placed in fermentation cauldron, in temperature be 35 DEG C,
Under the conditions of revolving speed is 200r/min, it is stirred fermentation 5 days, 0.3 times of quality of rice hull cellulose quality is then added into fermentation cauldron
The ferric chloride solution that score is 20% is stirred 60min, is then added into fermentation cauldron under the conditions of revolving speed is 500r/min
The ammonium hydroxide that mass fraction is 30% adjusts pH to 8.3, obtains mixed slurry, then mixed slurry is filtered, filter residue then uses deionization
Residue washing 8 times are then placed in the filter residue after washing in baking oven by water, under the conditions of temperature is 110 DEG C, drying to constant weight,
Filter residue must be dried, then dry filter residue is placed in retort, and nitrogen is filled with into furnace with 130mL/min rate, in temperature
Under the conditions of 1150 DEG C, heat preservation charing 3h obtains pretreatment rice hull cellulose；Pretreatment rice hull cellulose is placed in reaction kettle, then
Water vapour is passed through into reaction kettle, under the conditions of temperature is 280 DEG C, high-temperature process 2h obtains steam treatment material, then will be at steam
Reason material is placed in baking oven, dry to constant weight under the conditions of temperature is 110 DEG C, obtains modified rice hull cellulose；According to parts by weight, according to
It is secondary to take 100 parts of hydrogenated nitrile-butadiene rubbers, 30 parts of natural rubbers, 20 parts of modified rice hull celluloses, 20 parts of modified additives, 5 parts of vulcanizing agents,
Hydrogenated nitrile-butadiene rubber is first placed in open mill by 3 parts of promotors, 4 parts of anti-aging agents, 4 parts of plasticizer, in temperature be 80 DEG C of conditions
Under, plasticate 15min, then natural resin is added into plasticator, modified rice hull cellulose, modified additive, vulcanizing agent, promotor,
Anti-aging agent, plasticizer are kneaded 15min under the conditions of being 160 DEG C in temperature, in mixing process, apply to material in open mill strong
Degree is the external magnetic field of 50T, and end to be mixed obtains rubber compound, rubber compound is placed in extrusion molding in double screw extruder, obtains base
Material, and gained blank is transferred in vulcanizing press, under the conditions of temperature is 200 DEG C, vulcanize 60min, discharging subtracts to get rubber
Shake pad.The vulcanizing agent is sulphur.The promotor is accelerator M.The anti-aging agent is antioxidant 4010.The plasticising
Agent is dibutyl phthalate.
Example 2
According to parts by weight, by 10 parts of white carbon blacks, 8 parts of carbon blacks, 5 parts of silver nitrates, 5 parts of ammonium chlorides, 40 parts of water are placed in ball mill
Ball milling mixing 50min obtains No. 1 mixed liquor；According to parts by weight, by 30 parts of acrylonitrile, 8 parts of azodiisobutyronitriles, 8 parts positive penta
Alkane, 8 parts of methyl methacrylates are placed in No. 1 beaker, and No. 1 beaker is placed in ultrasonic disperse instrument, are in supersonic frequency
Under the conditions of 75kHz, ultrasound 50min is mixed, No. 2 mixed liquors are obtained；No. 2 mixed liquors are placed in No. 1 mixed liquor 1:8 in mass ratio and are cut
It cuts in homogenizer, under the conditions of temperature is 10 DEG C, low-temperature and high-speed shears 10min, homogeneous mixed liquor is obtained, then by homogeneous mixed liquor
It is placed in autoclave, and nitrogen is filled with into reaction kettle with 90mL/min rate, in pressure 0.9MPa, temperature is 70 DEG C,
After nitrogen charging heat-insulation pressure keeping reacts 50min, reaction under high pressure temperature in the kettle is cooled to room temperature, opens valve pressure release, discharging must mix
Slurries, then mixed serum is filtered, filter cake is obtained, Washing of Filter Cake 8 is then obtained into modified additive with deionized water；By weight
Number meter successively takes 100 parts of hydrogenated nitrile-butadiene rubbers, 30 parts of natural rubbers, 20 parts of rice hull celluloses, 20 parts of modified additives, 5 parts of vulcanizations
Hydrogenated nitrile-butadiene rubber is first placed in open mill by agent, 3 parts of promotors, 4 parts of anti-aging agents, 4 parts of plasticizer, in temperature be 80 DEG C of items
Under part, plasticate 15min, then natural resin is added into plasticator, rice hull cellulose, modified additive, vulcanizing agent, and promotor is prevented
Old agent, plasticizer are kneaded 15min under the conditions of being 160 DEG C in temperature, in mixing process, apply intensity to material in open mill
For the external magnetic field of 50T, end to be mixed obtains rubber compound, and rubber compound is placed in extrusion molding in double screw extruder, obtains blank,
And gained blank is transferred in vulcanizing press, under the conditions of temperature is 200 DEG C, vulcanize 60min, discharges to get rubber shock-absorbing
Pad.The vulcanizing agent is sulphur.The promotor is accelerator M.The anti-aging agent is antioxidant 4010.The plasticizer
For dibutyl phthalate.
Example 3
According to parts by weight, by 20 parts of rice hull celluloses, 3 parts of secondary settling tank sludge, 0.5 portion of sucrose, 30 parts of water are placed in fermentation cauldron, in
Temperature is 35 DEG C, under the conditions of revolving speed is 200r/min, is stirred fermentation 5 days, rice hull cellulose matter is then added into fermentation cauldron
Measure 0.3 times of mass fraction be 20% ferric chloride solution, in revolving speed be 500r/min under the conditions of, be stirred 60min, then to
The ammonium hydroxide that mass fraction is 30% is added in fermentation cauldron and adjusts pH to 8.3, obtains mixed slurry, then mixed slurry is filtered, filter residue,
Then residue washing 8 times are then placed in the filter residue after washing in baking oven with deionized water, under the conditions of temperature is 110 DEG C,
Drying is obtained dry filter residue, then dry filter residue is placed in retort, and is filled with 130mL/min rate into furnace to constant weight
Nitrogen, under the conditions of temperature is 1150 DEG C, heat preservation charing 3h obtains pretreatment rice hull cellulose；Pretreatment rice hull cellulose is placed in instead
It answers in kettle, water vapour is then passed through into reaction kettle, under the conditions of temperature is 280 DEG C, high-temperature process 2h obtains steam treatment material,
Then steam treatment material is placed in baking oven, it is dry to constant weight under the conditions of temperature is 110 DEG C, obtain modified rice hull cellulose；By weight
Number meter is measured, successively takes 100 parts of hydrogenated nitrile-butadiene rubbers, 30 parts of natural rubbers, 20 parts of modified rice hull celluloses, 5 parts of vulcanizing agents, 3 parts
Hydrogenated nitrile-butadiene rubber is first placed in open mill by promotor, 4 parts of anti-aging agents, 4 parts of plasticizer, under the conditions of temperature is 80 DEG C, modeling
15min is refined, then natural resin is added into plasticator, modified rice hull cellulose, vulcanizing agent, promotor, anti-aging agent, plasticizer, in
Temperature is kneaded 15min under the conditions of being 160 DEG C, in mixing process, applies the external magnetic field that intensity is 50T to material in open mill,
End to be mixed, obtains rubber compound, and rubber compound is placed in extrusion molding in double screw extruder, obtains blank, and by gained blank rotary
Enter in vulcanizing press, under the conditions of temperature is 200 DEG C, vulcanizes 60min, discharge to get Rubber shock-absorbing pad.The vulcanizing agent is
Sulphur.The promotor is accelerator M.The anti-aging agent is antioxidant 4010.The plasticizer is phthalic acid two
Butyl ester.
Comparative example: the Rubber shock-absorbing pad of Foshan material production Co., Ltd production.
Example 1 to the resulting Rubber shock-absorbing pad of example 3 and comparative example product are subjected to performance detection, specific detection method is such as
Under:
Senile experiment: DHX-9143 type electric heating constant temperature air blast ageing oven (Shanghai Fuma Experiment Equipment Co., Ltd.), experiment are used
Condition: aging temperature: 100 DEG C, the time: 48 hours.
Static stiffness value: test ambient temperature is (23 ± 2) DEG C, before test, the ring of used unit and equipment in (23 ± 2) DEG C
It is at least stood for 24 hours in border.Standard sample is lain in a horizontal plane on testing machine.Using force control mode, pre-add static load 20N is unloaded,
1min is stopped, loads 20N again, is unloaded, 1min is stopped.Formal test applies 72~360N of cyclic loading, load cycle 1000
It is secondary, obtain Static stiffness value.
Dynamic stiffness value: test ambient temperature is (23 ± 2) DEG C, before test, the ring of used unit and equipment in (23 ± 2) DEG C
It is at least stood for 24 hours in border.Standard sample is lain in a horizontal plane on testing machine.Using force control mode, pre-add static load 5N is unloaded,
1min is stopped, loads 5N again, is unloaded, 1min is stopped.Formal test applies 72~360N of cyclic loading, loading frequency 4Hz,
Load cycle 1000 times, obtain dynamic stiffness value.
Specific testing result is as shown in table 1:
The specific testing result of 1 Rubber shock-absorbing pad of table
| Detection project | Example 1 | Example 2 | Example 3 | Comparative example |
| Tearing strength (kN/m) before thermo-oxidative ageing | 28.1 | 26.9 | 24.2 | 21.6 |
| Thermo-oxidative ageing tearing strength conservation rate/% | 78.39 | 69.35 | 61.74 | 56.35 |
| Springrate ratio | 1.71 | 1.48 | 1.20 | 0.92 |
By 1 testing result of table it is found that the Rubber shock-absorbing pad of technical solution of the present invention preparation has excellent damping performance and resistance to old
The characteristics of changing performance, has broad prospects in the development of high polymer material technology industry.
Claims (7)
1. a kind of preparation method of Rubber shock-absorbing pad, it is characterised in that specific preparation process is as follows:
(1) according to parts by weight, by 10~20 parts of rice hull celluloses, 2~3 parts of secondary settling tank sludge, 0.3~0.5 portion of sucrose, 20~30
Part water mixed fermentation, is subsequently added into 0.2~0.3 times of rice hull cellulose quality of ferric chloride solution, is stirred, is subsequently added into ammonium hydroxide
PH to 8.1~8.3 is adjusted, is filtered, is washed, dry, heat preservation charing obtains pretreatment rice hull cellulose；
(2) pretreatment rice hull cellulose is passed through into water vapour high-temperature process, it is dry, obtain modified rice hull cellulose；
(3) according to parts by weight, 80~100 parts of hydrogenated nitrile-butadiene rubbers, 20~30 parts of natural rubbers, 10~20 parts of modifications are successively taken
Rice hull cellulose, 10~20 parts of modified additives, 3~5 parts of vulcanizing agents, 1~3 part of promotor, 2~4 parts of anti-aging agents, 1~4 part of plasticising
Agent first plasticates hydrogenated nitrile-butadiene rubber, adds natural resin, modified rice hull cellulose, modified additive, vulcanizing agent, promotor,
Anti-aging agent, plasticizer are kneaded, and apply external magnetic field in mixing process, end to be mixed, extrusion molding, vulcanization, discharging to get
Rubber shock-absorbing pad.
2. a kind of preparation method of Rubber shock-absorbing pad according to claim 1, it is characterised in that: step (2) described water vapour
High-temperature process condition are as follows: steam temperature is 260~280 DEG C, and the processing time is 1~2h.
3. a kind of preparation method of Rubber shock-absorbing pad according to claim 1, it is characterised in that: step (3) described modification adds
The preparation process of charging are as follows: according to parts by weight, by 8~10 parts of white carbon blacks, 5~8 parts of carbon blacks, 3~5 parts of silver nitrates, 3~5 parts
Ammonium chloride, 30~40 parts of water mixing and ball millings obtain No. 1 mixed liquor, according to parts by weight, by 20~30 parts of acrylonitrile, 5~8 parts of idols
Nitrogen bis-isobutyronitrile, 5~8 parts of pentanes, 5~8 parts of methyl methacrylate mixing ultrasounds obtain No. 2 mixed liquors；By No. 2 mixed liquors
It is sheared with No. 1 mixed liquor 1:5~1:10 low-temperature and high-speed in mass ratio, the reaction of nitrogen charging high pressure heat-preserving, cooling, pressure release, discharging, mistake
Filter, washing, obtains modified additive.
4. a kind of preparation method of Rubber shock-absorbing pad according to claim 1, it is characterised in that: step (3) described vulcanizing agent
For sulphur, any one in sulfur monochloride or benzoyl peroxide.
5. a kind of preparation method of Rubber shock-absorbing pad according to claim 1, it is characterised in that: step (3) described promotor
For accelerator M, any one in accelerator ZBX or accelerator DM D.
6. a kind of preparation method of Rubber shock-absorbing pad according to claim 1, it is characterised in that: step (3) described anti-aging agent
For antioxidant 4010, any one in anti-aging agent RD or antioxidant 4020.
7. a kind of preparation method of Rubber shock-absorbing pad according to claim 1, it is characterised in that: step (3) the plasticizer
Any one for dibutyl phthalate, in octyl epoxy stearate or dioctyl adipate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811098698.XA CN109181040A (en) | 2018-09-20 | 2018-09-20 | A kind of preparation method of Rubber shock-absorbing pad |
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| CN201811098698.XA CN109181040A (en) | 2018-09-20 | 2018-09-20 | A kind of preparation method of Rubber shock-absorbing pad |
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| CN201811098698.XA Pending CN109181040A (en) | 2018-09-20 | 2018-09-20 | A kind of preparation method of Rubber shock-absorbing pad |
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Cited By (6)
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| CN109897251A (en) * | 2019-02-20 | 2019-06-18 | 赵玲玲 | A kind of preparation method of tear-proof Rubber shock-absorbing pad |
| CN109971044A (en) * | 2019-02-25 | 2019-07-05 | 黄智慧 | A kind of electromagnetic shielding preparation method of composite conductive rubber |
| CN109988367A (en) * | 2019-03-11 | 2019-07-09 | 常州明华运输有限公司 | A kind of preparation method of vehicle windshield wiper abrasive rubber material |
| CN110294875A (en) * | 2019-06-12 | 2019-10-01 | 李承忠 | A kind of preparation method of compounded rubber resilient cushion |
| CN110373003A (en) * | 2019-06-12 | 2019-10-25 | 何治华 | A kind of preparation method of the short fine composite plate of enhanced carbon fiber |
| CN113234265A (en) * | 2021-03-29 | 2021-08-10 | 靳书艳 | Preparation method of hydrogenated nitrile rubber |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109897251A (en) * | 2019-02-20 | 2019-06-18 | 赵玲玲 | A kind of preparation method of tear-proof Rubber shock-absorbing pad |
| CN109971044A (en) * | 2019-02-25 | 2019-07-05 | 黄智慧 | A kind of electromagnetic shielding preparation method of composite conductive rubber |
| CN109988367A (en) * | 2019-03-11 | 2019-07-09 | 常州明华运输有限公司 | A kind of preparation method of vehicle windshield wiper abrasive rubber material |
| CN110294875A (en) * | 2019-06-12 | 2019-10-01 | 李承忠 | A kind of preparation method of compounded rubber resilient cushion |
| CN110373003A (en) * | 2019-06-12 | 2019-10-25 | 何治华 | A kind of preparation method of the short fine composite plate of enhanced carbon fiber |
| CN113234265A (en) * | 2021-03-29 | 2021-08-10 | 靳书艳 | Preparation method of hydrogenated nitrile rubber |
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