CN109294018A - A kind of nitrile rubber of the resistance to ozone-type of oil resistant - Google Patents
A kind of nitrile rubber of the resistance to ozone-type of oil resistant Download PDFInfo
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- CN109294018A CN109294018A CN201811280433.1A CN201811280433A CN109294018A CN 109294018 A CN109294018 A CN 109294018A CN 201811280433 A CN201811280433 A CN 201811280433A CN 109294018 A CN109294018 A CN 109294018A
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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
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
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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
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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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
- C08L2201/00—Properties
- 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 oil resistant nitrile rubbers of resistance to ozone-type, are prepared by the component of following parts by weight: 100 parts of nitrile rubber, 5~8 parts of zinc oxide, 1~2 part of stearic acid, 2~3 parts of paraffin, 2~3 parts of microwax, 3~7 parts of coumarone indene resin, 2~4 parts of magnesia, 2~5 parts of oil absorbent, 10~15 parts of plasticizer, 55~65 parts of carbon black mixing, 10~20 parts of filler, 5~8 parts of antiaging agent mixing, 2~3 parts of promotor mixing, 0.5~1.5 part of vulcanizing agent.The present invention has good anti-oxidant, weather resistance, and resistance to mechanical intensity, endurance life are good, and the resistance to ozone ability of oil resistant is strong.
Description
Technical field
The present invention relates to technical field of rubber production, in particular to the nitrile rubber of a kind of resistance to ozone-type of oil resistant.
Background technique
Automobile brake vacuum hose is the important component in brake system of car, and the installation of automobile brake vacuum hose is steady
Qualitatively quality directly affects safe and reliable in automobilism, and vacuum brake flexible hose belongs to safety member class product, to oil resistivity
It is required that high, volume change is within 30% after standard requirements oil resistant.Nitrile rubber, but nitrile rubber are generally used at present
The ozone resistance of material can meet to work under the conditions of 100pphm for a long time, it would be highly desirable to solve.
In addition, in the rubber product of the routine such as constant velocity cardan joint dirt-proof boot, sealing ring, in long-term heavy wool, ozone environment
High temperature resistant, resistance to ozone, the mechanical resistant intensity for leading to synthetic rubber are used under lower use, especially polarity oils and high ozone environment
Or the ability of fatigue declines and influences normal use.
Summary of the invention
The purpose of the present invention is to provide a kind of nitrile rubbers of the resistance to ozone-type of oil resistant, have good anti-oxidant, weather-proof
Ability, and resistance to mechanical intensity, endurance life are good, and the resistance to ozone ability of oil resistant is strong, can be resistant to 100pphm ozone ring for a long time
Border.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of oil resistant nitrile rubber of resistance to ozone-type, is prepared by the component of following parts by weight: 100 parts of nitrile rubber, zinc oxide 5
~8 parts, 1~2 part of stearic acid, 2~3 parts of paraffin, 2~3 parts of microwax, 3~7 parts of coumarone indene resin, 2~4 parts of magnesia, suction
2~5 parts of finish, 10~15 parts of plasticizer, 55~65 parts of carbon black mixing, 10~20 parts of filler, antiaging agent mixing 5~8
Part, 2~3 parts of promotor mixing, 0.5~1.5 part of vulcanizing agent.
The oil resistant rubber of resistance to ozone-type of the invention uses nitrile rubber, and addition zinc oxide promotes rubber to mention with promotor activity
High crosslinking degree.The heat resistance of rubber can be improved in magnesia；Carbon black mixing improves the intensity of rubber, elongation, reinforcing rubber
Resistance to mechanical pressure ability.Antiaging agent mixing can significantly improve the anti-thermo-oxidative ageing of rubber, ozone-resistant ability, extend rubber
The anti-aging time of glue, simultaneous oxidation zinc can absorb and scatters ultraviolet, improves the ageing-resistant ability of rubber, strengthens anti-aging
The effect of agent mixing.It can play the role of softening, reinforcement, thickening, dispersion after coumarone indene resin addition, facilitate sulphur and charcoal
Black dissolution dispersion.Stearic acid can play the role of promotor active function, while play reinforcing plasticising, softening, improve rubber
Stability.Plasticizer reduces hardness and stress at definite elongation in rubber, assigns higher elastic and lower heat, improves and resist cold
Property etc..Oil absorbent controls plasticizer in the migration on sizing material surface, prevents product from accelerating firmness change, paraffin and microwax can subtract
The aging speed of slow rubber and its product improves the ability of rubber and its anti-aging of product, ozone-resistant oxidation, promotor mixing
Promote sulfidation, rubber cross process with sulphur.
The antiaging agent mixing is the mixture of anti-aging agent RD, antioxidant MB and antioxidant NBC, and the weight ratio of three is
Anti-aging agent RD: antioxidant MB: antioxidant NBC=2~3:1~2:2~3.Anti-aging agent RD to because heat, oxidation caused by aging prevent
It is good to protect inhibitory effect；Antioxidant MB has protective benefits to hot oxygen, ozone, Weather and static burn in etc., also can relatively effectively
Ill-effect caused by over cure when ground protection copper is harmful and overcomes vulcanization；Antioxidant NBC can prevent rubber because of daylight, ozone caused by
Cracking, anti-aging agent RD, antioxidant MB, antioxidant NBC, which are used in compounding, plays the role of cooperative reinforcing.
The promotor mixing is the mixture of accelerant CZ, altax and Vulcanization accelerator TMTD, and the weight ratio of three is
Accelerant CZ: altax: Vulcanization accelerator TMTD=0.5~1:0.5~1:1~2.Promotor uses SE curing system
(SEV) and efficient vulcanization system (EV) heat resistance of oil resistant ozone-resistant nitrile rubber, is improved, and that improves sizing material pulls apart elongation
Rate and heat are small suitable for the use of product in a dynamic state.
The oil absorbent be plant ointment (French LEFRANT-RUBCO company, model: BROWN 911, BROWN 924,
BROWN 11-LG etc.).Ointment can promote filler to disperse, and keep sizing material surface smooth；Ointment shrinking percentage is small, and stiffening property is big, helps
It in calendering, extrudes and injection pressure operates, moreover it is possible to reduce the ejection of Sulfur and softening agent in sizing material, can avoid causing because of high softening oil
Spit oily phenomenon.
The carbon black mixing is the mixture of carbon black 330 and carbon black 774, and the weight ratio of the two is carbon black 330: carbon black 774
=35~45:15~30.Carbon black 330 can enhance the reinforcing effect of anti-aging rubber, and carbon black 774 can be improved anti-aging rubber
Elasticity and elongation, two kinds collaboration using strengthen anti-aging rubber resistance to mechanical pressure abilities.
The filler is surface treated tripoli.Surface treated tripoli is commercially available: ProductName-Wan Tai tripoli GW-
85, Fujian ten thousand is safe, and surface treated tripoli has preferable dispersibility, resistance to acid and alkali and processability, has in physical property
Higher elongation at break and high impact, and heat is low, low compression set.
The plasticizer is dioctyl sebacate.
The vulcanizing agent is sulphur.
Preparation method includes the following steps:
(1) nitrile rubber, zinc oxide, stearic acid, paraffin, microwax, coumarone indene resin, magnesia, suction are added into mixer
Finish, antiaging agent mixing are uniformly mixed, and feeding temperature is≤80 DEG C, keep 5.5 ± 0.5kgf/ under 35~40r/min of revolving speed
cm 2Pressure 50~70 seconds；
(2) 35%~55% carbon black mixing is added, keeps 5.5 ± 0.5kgf/cm under 35~45r/min of revolving speed2Pressure 40~60
Second；
(3) remaining carbon black mixing, filler and plasticizer are continuously added, keeps 5.5 ± 0.5kgf/ under 35~45r/min of revolving speed
cm2Pressure 50~70 seconds；
(4) it rises and presses bolt after bolt dallies 10 ± 2 seconds, keep 5.5 ± 0.5kgf/cm under 35~45r/min of revolving speed2Pressure 30~50
Second；
(5) it rises and presses bolt after bolt dallies 10 ± 2 seconds, keep 5.5 ± 0.5kgf/cm under 35~45r/min of revolving speed2Pressure 30~50
Second, 120~140 DEG C of temperature；
(6) 4 ± 0.5kgf/cm of pressure is kept2, under 30 ± 2r/min of revolving speed at least dumping 15 seconds primary sizing material；
(7) mixer is added after primary sizing material being placed a period of time, and promotor mixing, vulcanizing agent is added, rises bolt idle running 20
Bolt is pressed after ± 5 seconds, keeps 5.5 ± 0.5kgf/cm under 25~30r/min of revolving speed2Pressure 30~40 seconds；
(8) it is pressed bolt 20~30 seconds after rising bolt 7 ± 2 seconds, 5.5 ± 0.5kgf/cm is kept under 25~30r/min of revolving speed2Pressure 30~
50 seconds, 90~100 DEG C of temperature；
(9) 4 ± 0.5kgf/cm of pressure2, obtain oil resistant ozone-resistant nitrile rubber within dumping 20 ± 5 seconds under 25 ± 2r/min of revolving speed.
Keep pressure and feeding temperature appropriate to guarantee that the various raw materials being added are uniformly mixed, carbon black and softening agent respectively into
Material improves the dispersion effect of carbon black mixing and softening agent, strengthens the resistance to low temperature of anti-aging rubber.Primary sizing material places one section
Promotor mixing, vulcanizing agent are added after time, the dispersibility and uniformity of mixing are good, and vulcanization effect is good, improve the resistance to ozone of oil resistant
The greater homogeneity of nitrile rubber.Feeding temperature in step (1) is≤80 DEG C, promotes the evenly dispersed of each raw material, strengthens softening
The dispersion effect of agent.
Primary sizing material standing time is no less than 8 hours and is no more than 20 days in step (7), placing temperature is 15~30
℃.So that primary sizing material is reduced shrinkage after primary sizing material is placed a period of time, mentions high performance stability and greater homogeneity, and
The stress of primary sizing material is set to be relaxed.
The beneficial effects of the present invention are: the present invention has good anti-oxidant, weather resistance, and resistance to mechanical intensity, resistance to
Fatigue strength is good, and the resistance to ozone ability of oil resistant is strong, all has good resistivity to polarity oils and nonpolar oils, avoids rubber
There is asking for the destructive normal use for changing and influencing rubber such as cracking, tacky, hardening, softening, dusting, discoloration, mildew in glue
Topic.
Specific embodiment
Below by specific embodiment, technical scheme of the present invention will be further explained in detail.
In the present invention, if not refering in particular to, used raw material and equipment etc. are commercially available or commonly used in the art.
Method in following embodiments is unless otherwise instructed the conventional method of this field.
Embodiment 1
A kind of oil resistant nitrile rubber of resistance to ozone-type, is prepared by following component: nitrile rubber 100kg, zinc oxide 6kg, tristearin
1 kg of acid, paraffin 2kg, microwax 2kg, coumarone indene resin 5kg, magnesia 3kg, oil absorbent (plant ointment, commercially available, France
LEFRANT-RUBCO company, model: BROWN 911) it 2kg, plasticizer (dioctyl sebacate) 10kg, carbon black mixing 60kg, fills out
Fill agent 15kg, antiaging agent mixing 5kg, promotor mixing 2.5kg, vulcanizing agent (sulphur) 0.7kg.Antiaging agent mixing is anti-old
Agent RD, antioxidant MB, antioxidant NBC, the wherein weight ratio of three are as follows: anti-aging agent RD: antioxidant MB: antioxidant NBC=2:1:
2.Promotor mixing is accelerant CZ, altax, Vulcanization accelerator TMTD, the wherein weight ratio of three are as follows: accelerant CZ: promotor
DM: Vulcanization accelerator TMTD=0.7:0.8:1.Carbon black mixing is carbon black 330, carbon black 774, wherein the weight ratio of the two is carbon black 330:
Carbon black 774=40:20.Filler is surface treated tripoli (commercially available, ProductName-Wan Tai tripoli GW-85, Fujian ten thousand are safe).
Preparation method, comprising the following steps:
(1) nitrile rubber, zinc oxide, stearic acid, paraffin, microwax, coumarone indene resin, magnesia, suction are added into mixer
Finish, antiaging agent mixing are uniformly mixed, and feeding temperature is 30 DEG C, keep 6kgf/cm under revolving speed 35r/min2Pressure 50 seconds；
(2) 35% carbon black mixing is added, keeps 6kgf/cm under revolving speed 35r/min2Pressure 40 seconds；
(3) remaining carbon black mixing, filler and plasticizer are continuously added, keeps 6kgf/cm under revolving speed 35r/min2Pressure 50 seconds；
(4) it rises after bolt dallies 8 seconds and presses bolt, keep 6kgf/cm under revolving speed 35r/min2Pressure 30 seconds；
(5) it rises after bolt dallies 12 seconds and presses bolt, keep 5kgf/cm under revolving speed 45r/min2Pressure 50 seconds, 120 DEG C of temperature；
(6) pressure 3.5kgf/cm is kept2, under revolving speed 28r/min at least dumping 15 seconds primary sizing material；
(7) primary sizing material is placed 10 days (placing temperature is 15 DEG C) and mixer is added afterwards, and promotor mixing, vulcanization is added
Agent rises after bolt dallies 15 seconds and presses bolt, keeps 6kgf/cm under revolving speed 25r/min2Pressure 30 seconds；
(8) it is pressed bolt 20 seconds after rising bolt 5 seconds, keeps 6kgf/cm under revolving speed 25r/min2Pressure 30 seconds, 90 DEG C of temperature；
(9) pressure 3.5kgf/cm2, obtain oil resistant ozone-resistant nitrile rubber within dumping 15 seconds under revolving speed 27r/min.
Embodiment 2
A kind of oil resistant nitrile rubber of resistance to ozone-type, is prepared by following component: nitrile rubber 100kg, zinc oxide 5kg, tristearin
Sour 1.5kg, paraffin 3kg, microwax 2.5kg, coumarone indene resin 3kg, magnesia 2kg, oil absorbent (plant ointment, commercially available, method
LEFRANT-RUBCO company of state, model: BROWN 924) 3kg, plasticizer (dioctyl sebacate) 12kg, carbon black mixing 55kg,
Filler 20kg, antiaging agent mixing 6.5kg, promotor mixing 2kg, vulcanizing agent (sulphur) 1.5kg.
Antiaging agent mixing is anti-aging agent RD, antioxidant MB, antioxidant NBC, the wherein weight ratio of three are as follows: anti-aging agent
RD: antioxidant MB: antioxidant NBC=2:1.5:3.Promotor mixing be accelerant CZ, altax, Vulcanization accelerator TMTD, wherein
The weight ratio of three are as follows: accelerant CZ: altax: Vulcanization accelerator TMTD=1:0.5:2.Carbon black mixing is carbon black 330, carbon black
774, wherein the weight ratio of the two is carbon black 330: carbon black 774=45:15.Filler is (commercially available, the production of surface treated tripoli
The name of an article-Wan Tai tripoli GW-85, Fujian ten thousand are safe).
Preparation method, comprising the following steps:
(1) nitrile rubber, zinc oxide, stearic acid, paraffin, microwax, coumarone indene resin, magnesia, suction are added into mixer
Finish, antiaging agent mixing are uniformly mixed, and feeding temperature is 50 DEG C, keep 5kgf/cm under revolving speed 40r/min2Pressure 70 seconds；
(2) 55% carbon black mixing is added, keeps 5kgf/cm under revolving speed 45r/min2Pressure 60 seconds；
(3) remaining carbon black mixing, filler and plasticizer are continuously added, keeps 5kgf/cm under revolving speed 45r/min2Pressure 70 seconds；
(4) it rises after bolt dallies 12 seconds and presses bolt, keep 5kgf/cm under revolving speed 45r/min2Pressure 50 seconds；
(5) it rises after bolt dallies 8 seconds and presses bolt, keep 6kgf/cm under revolving speed 35r/min2Pressure 30 seconds, 140 DEG C of temperature；
(6) pressure 4.5kgf/cm is kept2, under revolving speed 32r/min at least dumping 15 seconds primary sizing material；
(7) primary sizing material is placed 10 hours (placing temperature is 30 DEG C) and mixer is added afterwards, and promotor mixing, vulcanization is added
Agent rises after bolt dallies 25 seconds and presses bolt, keeps 5kgf/cm under revolving speed 30r/min2Pressure 40 seconds；
(8) it is pressed bolt 30 seconds after rising bolt 9 seconds, keeps 5kgf/cm under revolving speed 30r/min2Pressure 50 seconds, 100 DEG C of temperature；
(9) pressure 4.5kgf/cm2, obtain oil resistant ozone-resistant nitrile rubber within dumping 25 seconds under revolving speed 23r/min.
Embodiment 3
A kind of oil resistant nitrile rubber of resistance to ozone-type, is prepared by following component: nitrile rubber 100kg, zinc oxide 8kg, tristearin
2 kg of acid, paraffin 2kg, microwax 3kg, coumarone indene resin 7kg, magnesia 4kg, oil absorbent (plant ointment, commercially available, France
LEFRANT-RUBCO company, model: BROWN 11-LG) 5kg, plasticizer (dioctyl sebacate) 15kg, carbon black mixing 65kg,
Filler 10kg, antiaging agent mixing 8kg, promotor mixing 3kg, vulcanizing agent (sulphur) 0.5kg.Antiaging agent mixing is anti-old
Agent RD, antioxidant MB, antioxidant NBC, the wherein weight ratio of three are as follows: anti-aging agent RD: antioxidant MB: antioxidant NBC=3:2:
2.5.Promotor mixing is accelerant CZ, altax, Vulcanization accelerator TMTD, the wherein weight ratio of three are as follows: accelerant CZ: being promoted
Agent DM: Vulcanization accelerator TMTD=0.5:1:1.5.Carbon black mixing is carbon black 330, carbon black 774, wherein the weight ratio of the two is carbon black
330: carbon black 774=35:30.Filler is surface treated tripoli (commercially available, ProductName-Wan Tai tripoli GW-85, Fujian ten thousand
It is safe).
Preparation method, comprising the following steps:
(1) nitrile rubber, zinc oxide, stearic acid, paraffin, microwax, coumarone indene resin, magnesia, suction are added into mixer
Finish, antiaging agent mixing are uniformly mixed, and feeding temperature is 70 DEG C, keep 5.5kgf/cm under revolving speed 38r/min2Pressure 60
Second；
(2) 40% carbon black mixing is added, keeps 5.5kgf/cm under revolving speed 40r/min2Pressure 50 seconds；
(3) remaining carbon black mixing, filler and plasticizer are continuously added, keeps 5.5kgf/cm under revolving speed 40r/min2Pressure 60
Second；
(4) it rises after bolt dallies 10 seconds and presses bolt, keep 5.5kgf/cm under revolving speed 40r/min2Pressure 40 seconds；
(5) it rises after bolt dallies 10 seconds and presses bolt, keep 5.5kgf/cm under revolving speed 40r/min2Pressure 40 seconds, 130 DEG C of temperature；
(6) pressure 4kgf/cm is kept2, under revolving speed 30r/min at least dumping 15 seconds primary sizing material；
(7) primary sizing material is placed 3 days (placing temperature is 20 DEG C) and mixer is added afterwards, and promotor mixing, vulcanizing agent is added,
It rises after bolt dallies 20 seconds and presses bolt, keep 5.5kgf/cm under revolving speed 28r/min2Pressure 35 seconds；
(8) it is pressed bolt 25 seconds after rising bolt 7 seconds, keeps 5.5kgf/cm under revolving speed 28r/min2Pressure 40 seconds, 95 DEG C of temperature；
(9) pressure 4kgf/cm2, obtain oil resistant ozone-resistant nitrile rubber within dumping 20 seconds under revolving speed 25r/min.
Performance indicator
Oil resistant ozone-resistant nitrile rubber prepared by the embodiment of the present invention 1, embodiment 2, embodiment 3 is each with commercially available nitrile rubber
Item test index is as shown in table 1.
Wherein, shore hardness testing standard: ASTM D2240；Tensile strength testing standard: ASTM D412；Ageing properties
Testing standard: ASTM D573；The static stretch of resistance to ozone testing standard: GB/T7762-2003.
As can be known from Table 1, oil resistant ozone-resistant nitrile rubber of the invention is compared with commercially available nitrile rubber, oil resistivity, resistance to
Ozon, ageing resistance gets a promotion, and tensile strength, tearing strength increase, and good toughness, the energy of resistance to mechanical pressure
Power enhancing.
Table 1
| 1 project of table | Embodiment 1 | Embodiment 2 | Embodiment 3 | Nitrile rubber |
| Shore hardness/(Shao Er A) | 58 | 57 | 58 | 61 |
| Tensile strength/Mpa | 13.9 | 14.25 | 14.13 | 13.2 |
| Elongation at break/% | 512 | 557 | 536 | 440 |
| Firmness change after hot air aging | +5 | +4 | +2 | +6 |
| Hot air aging tensile strength change % | -7.91 | -15.09 | -7.29 | -11.36 |
| Hot air aging elongation at break change rate % | -28.32 | -30.52 | -27.43 | -38.18 |
| The high temperature oil of resistance to IRM901 firmness change Shore | +6 | +7 | +7 | +10 |
| The high temperature oil of resistance to IRM901 tensile strength change % | -10.79 | -21.40 | -13.66- | -12.88 |
| The high temperature oil of resistance to IRM901 elongation at break change rate % | -27.93 | -35.01 | -31.53 | -40 |
| The resistance to IRM901 oil volume change rate % of high temperature | -7.13 | -8.02 | -10.12 | -11.12 |
| The high temperature oil of resistance to IRM903 firmness change Shore | -6 | -6 | -9 | -5 |
| The high temperature oil of resistance to IRM903 tensile strength change % | -35.97 | -35.44 | -38.43 | -22.73 |
| The high temperature oil of resistance to IRM903 elongation at break change rate % | -27.73 | -24.60 | -11.94 | -26.82 |
| The resistance to IRM903 oil volume change rate % of high temperature | 13.26 | 25.26 | 6.14 | 8.22 |
| 40 DEG C of * 50PPhm*70h*20% of ozone-resistant | No cracking | No cracking | No cracking | No cracking |
| 40 DEG C of * 100PPhm*70h*20% of ozone-resistant | No cracking | No cracking | No cracking | It is cracked |
Above-mentioned embodiment is only a preferred solution of the present invention, not the present invention is made in any form
Limitation, there are also other variations and modifications on the premise of not exceeding the technical scheme recorded in the claims.
Claims (10)
1. a kind of oil resistant nitrile rubber of resistance to ozone-type, it is characterised in that: be prepared by the component of following parts by weight: nitrile rubber
100 parts, 5~8 parts of zinc oxide, 1~2 part of stearic acid, 2~3 parts of paraffin, 2~3 parts of microwax, 3~7 parts of coumarone indene resin, oxidation
2~4 parts of magnesium, 2~5 parts of oil absorbent, 10~15 parts of plasticizer, 55~65 parts of carbon black mixing, 10~20 parts of filler, antiaging agent
5~8 parts of mixing, 2~3 parts of promotor mixing, 0.5~1.5 part of vulcanizing agent.
2. a kind of oil resistant nitrile rubber of resistance to ozone-type according to claim 1, it is characterised in that: the antiaging agent mixing
For the mixture of anti-aging agent RD, antioxidant MB and antioxidant NBC, the weight ratio of three is anti-aging agent RD: antioxidant MB: anti-aging agent
NBC=2~3:1~2:2~3.
3. a kind of oil resistant nitrile rubber of resistance to ozone-type according to claim 1, it is characterised in that: the promotor mixing is
The mixture of accelerant CZ, altax and Vulcanization accelerator TMTD, the weight ratio of three are accelerant CZ: altax: promotor
TMTD=0.5~1:0.5~1:1~2.
4. a kind of oil resistant nitrile rubber of resistance to ozone-type according to claim 1, it is characterised in that: the oil absorbent is plant
Ointment.
5. a kind of oil resistant nitrile rubber of resistance to ozone-type according to claim 1, it is characterised in that: the carbon black mixing is charcoal
Black 330 and carbon black 774 mixture, the weight ratio of the two is carbon black 330: carbon black 774=35~45:15~30.
6. a kind of oil resistant nitrile rubber of resistance to ozone-type according to claim 1, it is characterised in that: the filler is through table
The tripoli of surface treatment.
7. a kind of oil resistant nitrile rubber of resistance to ozone-type according to claim 1, it is characterised in that: the plasticizer is the last of the ten Heavenly stems two
Dioctyl phthalate.
8. a kind of oil resistant nitrile rubber of resistance to ozone-type according to claim 1, it is characterised in that: the vulcanizing agent is sulphur
Sulphur.
9. a kind of oil resistant nitrile rubber of resistance to ozone-type according to claim 1, which is characterized in that preparation method includes as follows
Step:
(1) nitrile rubber, zinc oxide, stearic acid, paraffin, microwax, coumarone indene resin, magnesia, suction are added into mixer
Finish, antiaging agent mixing are uniformly mixed, and feeding temperature is≤80 DEG C, keep 5.5 ± 0.5kgf/ under 35~40r/min of revolving speed
cm2Pressure 50~70 seconds；
(2) 35%~55% carbon black mixing is added, keeps 5.5 ± 0.5kgf/cm under 35~45r/min of revolving speed2Pressure 40~60
Second；
(3) remaining carbon black mixing, filler and plasticizer are continuously added, keeps 5.5 ± 0.5kgf/ under 35~45r/min of revolving speed
cm2Pressure 50~70 seconds；
(4) it rises and presses bolt after bolt dallies 10 ± 2 seconds, keep 5.5 ± 0.5kgf/cm under 35~45r/min of revolving speed2Pressure 30~50 seconds；
(5) it rises and presses bolt after bolt dallies 10 ± 2 seconds, keep 5.5 ± 0.5kgf/cm under 35~45r/min of revolving speed2Pressure 30~50 seconds,
120~140 DEG C of temperature；
(6) 4 ± 0.5kgf/cm of pressure is kept2, under 30 ± 2r/min of revolving speed at least dumping 15 seconds primary sizing material；
(7) mixer is added after primary sizing material being placed a period of time, and promotor mixing, vulcanizing agent is added, rises bolt idle running 20
Bolt is pressed after ± 5 seconds, keeps 5.5 ± 0.5kgf/cm under 25~30r/min of revolving speed2Pressure 30~40 seconds；
(8) it is pressed bolt 20~30 seconds after rising bolt 7 ± 2 seconds, 5.5 ± 0.5kgf/cm is kept under 25~30r/min of revolving speed2Pressure 30~50
Second, 90~100 DEG C of temperature；
(9) 4 ± 0.5kgf/cm of pressure2, obtain oil resistant ozone-resistant nitrile rubber within dumping 20 ± 5 seconds under 25 ± 2r/min of revolving speed.
10. a kind of oil resistant nitrile rubber of resistance to ozone-type according to claim 9, it is characterised in that: will be primary in step (7)
Sizing material standing time is no less than 8 hours and is no more than 20 days, and placing temperature is 15~30 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811280433.1A CN109294018A (en) | 2018-10-30 | 2018-10-30 | A kind of nitrile rubber of the resistance to ozone-type of oil resistant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811280433.1A CN109294018A (en) | 2018-10-30 | 2018-10-30 | A kind of nitrile rubber of the resistance to ozone-type of oil resistant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109294018A true CN109294018A (en) | 2019-02-01 |
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| CN201811280433.1A Pending CN109294018A (en) | 2018-10-30 | 2018-10-30 | A kind of nitrile rubber of the resistance to ozone-type of oil resistant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113136059A (en) * | 2021-03-12 | 2021-07-20 | 青岛橡六胶管有限公司 | Pure water resistant hydraulic support rubber tube and preparation method thereof |
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| WO1995001854A1 (en) * | 1993-07-09 | 1995-01-19 | Nippon Zeon Co., Ltd. | Oil hose |
| CN101605828A (en) * | 2006-12-28 | 2009-12-16 | Jsr株式会社 | Oil-proofness rubber with the method for making of polymkeric substance, oil-proofness rubber with polymkeric substance, oil-resistant weather-resistant rubber with composition and rubber-moulding body |
| CN104177674A (en) * | 2014-07-31 | 2014-12-03 | 濮阳市恒信橡塑有限公司 | Oil-resistant air tank capsule and preparation method thereof |
| CN104200952A (en) * | 2014-08-05 | 2014-12-10 | 广州金南磁性材料有限公司 | Halogen-free oil-resistant high-temperature-resistant flexible ferrite rubber magnet and preparing method thereof |
| CN104292537A (en) * | 2014-09-29 | 2015-01-21 | 山西德邦橡胶制品有限公司 | Oil-resistant conveying belt covering rubber |
| CN104976446A (en) * | 2014-04-03 | 2015-10-14 | 青岛橡六胶管有限公司 | Heat-resistant and oil-resistant rubber hose |
| CN107663300A (en) * | 2016-07-29 | 2018-02-06 | 桂林洁宇环保科技有限责任公司 | A kind of small primer of resistance to oiled boots of fitting method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995001854A1 (en) * | 1993-07-09 | 1995-01-19 | Nippon Zeon Co., Ltd. | Oil hose |
| CN101605828A (en) * | 2006-12-28 | 2009-12-16 | Jsr株式会社 | Oil-proofness rubber with the method for making of polymkeric substance, oil-proofness rubber with polymkeric substance, oil-resistant weather-resistant rubber with composition and rubber-moulding body |
| CN104976446A (en) * | 2014-04-03 | 2015-10-14 | 青岛橡六胶管有限公司 | Heat-resistant and oil-resistant rubber hose |
| CN104177674A (en) * | 2014-07-31 | 2014-12-03 | 濮阳市恒信橡塑有限公司 | Oil-resistant air tank capsule and preparation method thereof |
| CN104200952A (en) * | 2014-08-05 | 2014-12-10 | 广州金南磁性材料有限公司 | Halogen-free oil-resistant high-temperature-resistant flexible ferrite rubber magnet and preparing method thereof |
| CN104292537A (en) * | 2014-09-29 | 2015-01-21 | 山西德邦橡胶制品有限公司 | Oil-resistant conveying belt covering rubber |
| CN107663300A (en) * | 2016-07-29 | 2018-02-06 | 桂林洁宇环保科技有限责任公司 | A kind of small primer of resistance to oiled boots of fitting method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113136059A (en) * | 2021-03-12 | 2021-07-20 | 青岛橡六胶管有限公司 | Pure water resistant hydraulic support rubber tube and preparation method thereof |
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Application publication date: 20190201 |