CN106832626A - A kind of high durable type nitrile rubber/CSM composition - Google Patents
A kind of high durable type nitrile rubber/CSM composition Download PDFInfo
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- CN106832626A CN106832626A CN201710022369.6A CN201710022369A CN106832626A CN 106832626 A CN106832626 A CN 106832626A CN 201710022369 A CN201710022369 A CN 201710022369A CN 106832626 A CN106832626 A CN 106832626A
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- nitrile rubber
- csm
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- plasticizer
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
- C08L23/32—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with compounds containing phosphorus or sulfur
- C08L23/34—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with compounds containing phosphorus or sulfur by chlorosulfonation
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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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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
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- General Chemical & Material Sciences (AREA)
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Abstract
The invention discloses a kind of high durable type nitrile rubber/CSM composition, it is prepared from by the component of following mass parts：Nitrile rubber 10~55, CSM 45~90, reinforcing agent 45~105, plasticizer 10~40, vulcanizing agent 2~20, lubricant 0.5~5, age resistor 0.5~5, acid-acceptor 3~15；The invention also discloses the preparation method of the rubber composition：Nitrile rubber, CSM, lubricant, age resistor and acid-acceptor are added in banbury, stirring is kneaded to after 45~55 DEG C, add reinforcing agent and plasticizer, continue to stir and knead to after 75~85 DEG C, add vulcanizing agent, when continuation mixing to temperature reaches 110~120 DEG C, stop stirring, dumping；It is thin logical three times on a mill, plastic emitting, by air cooler, cooling.Nitrile rubber of the present invention/CSM composition has excellent heat-proof aging and ozone aging performance.
Description
Technical field
The invention belongs to rubber materials, and in particular to a kind of high durable type nitrile rubber/CSM combination
Thing.
Background technology
With the fast development innovation of industrial technology, automobile industry also experienced the development of leap.Elastomeric material is commonly used for
Auto parts and components material, its performance turns into major auto vendor's focus of attention.
The saturated structures of CSM (CSM) strand, assign its excellent high temperature resistant, resistance to ozone, resistance to dynamic
Power turns to the performances such as liquid, solvent resistant, is had broad prospects in terms of automobile rubber materials application.However, chlorosulfonated polyethylene
Relative molecular weight is smaller, and only 2~80,000, mutually sliding is easy between strand, when temperature is slightly higher, the viscosity of sizing material is especially
Greatly, certain difficulty is brought to production and processing.In terms of design for rubber formulation, be usually added into each series lubricant agent, such as oleamide,
Stearic acid, WB222 etc. improve the processing characteristics of CSM, can the effect of this method be not fairly obvious.
Nitrile rubber (NBR) strand contains unsaturated double-bond, is in the environment of semi-enclosed HTHP of automobile,
Easily by the aging of ozone, there is crack performance.
The content of the invention
The main object of the present invention is to provide a kind of high durable type nitrile rubber/CSM composition.
The purpose of the present invention is achieved through the following technical solutions：
A kind of high durable type nitrile rubber/CSM composition, it is by the component system of following mass parts
It is standby to form：
Wherein, the total amount of described nitrile rubber and CSM is 100 mass parts.
Preferably, described high durable type nitrile rubber/CSM composition is by following mass parts
Component is prepared from：
It is furthermore preferred that described high durable type nitrile rubber/CSM composition is by following mass parts
Component be prepared from：
Nitrile rubber of the present invention is at least in nitrile rubber rubber, nitrile rubber/poly (vinyl chloride) blend
Kind；Nitrile rubber and polyvinyl chloride mass ratio are 7 in described nitrile rubber/poly (vinyl chloride) blend：3~9：1.
Reinforcing agent of the present invention is fast extrude in carbon black N550, spray carbon black, semi-reinforcing hydrocarbon black N774, the benefit of natural gas half
At least one in strong carbon black, potter's clay, talcum powder, precipitated calcium carbonate；Preferably fast extrude in carbon black N550, semi-reinforcing hydrocarbon black
In N774, potter's clay at least two.
Plasticizer of the present invention is dibutyl phthalate (DBP), trioctyl trimellitate (TOTM) (TOTM), plasticizer
At least one in RS-107 or polyesters plasticizer；It is preferred that trioctyl trimellitate (TOTM), the mixing of plasticizer RS-107, inclined benzene three
The mass ratio of sour three monooctyl esters and plasticizer RS-107 is 1.5~2.5：1.
Vulcanizing agent of the present invention is the thio thiuram (TMTD) of tetramethyl two, 2,2'- dithio-bis-benzothiazoles
(DM), bis-pentamethylenethiuram tetrasulfide (TRA), N cyclohexyl 2 benzothiazole sulfenamide (CZ), triallyl isocyanide
Between urea acid esters (TAIC), N, N'- in penylene BMI (HVA-2) at least two；It is preferred that the thio autumn of tetramethyl two is blue
Between nurse, 2,2'- dithio-bis-benzothiazoles, bis-pentamethylenethiuram tetrasulfide, N, N'- in penylene BMI extremely
Few three kinds of mixing.
Lubricant of the present invention is at least one in lubricant WB222, stearic acid, oleamide, zinc stearate；
In preferred emollient WB222, stearic acid, oleamide at least two.
Age resistor of the present invention is 2- acetone diphenlyamine reactions product (BLE-65), 6- ethyoxyl -2,2,4- front threes
Base -1,2- dihyaroquinolines (AW), nickel dibutyl dithiocarbamate (NBC), N- phenyl-N '-isopropyl p-phenylenediamine
At least one in (4010NA)；It is preferred that 2- acetone diphenlyamine reactions product, 6- ethyoxyl -2,2,4- trimethyl -1,2- dihydros
Change at least one in quinoline, N- phenyl-N '-isopropyl p-phenylenediamine.
Acid-acceptor of the present invention is activated magnesia 150 (MgO150), hydrotalcite DHT-4A, calcium stearate, hydrogen-oxygen
Change at least one in calcium.When rubber composition reacts, acid-acceptor is capable of the acidic materials of absorbing reaction generation, if be not added with
Enter acid-acceptor, the cross-linking reaction of rubber is not abundant enough, frequently result in the not yet done phenomenon of vulcanization and occur.
It is a further object to provide the preparation method of nitrile rubber/CSM composition, step
It is rapid as follows：Add nitrile rubber, CSM, lubricant, age resistor and acid-acceptor, stirring simultaneously in banbury
Knead to after 45~55 DEG C, add reinforcing agent and plasticizer, continue stirring and knead to after 75~85 DEG C, addition vulcanizing agent continues
When mixing to temperature reaches 110~120 DEG C, stop stirring, dumping；It is thin to the elastomeric compound for obtaining logical three times on a mill, go out
Glue, by air cooler, is cooled to 25~40 DEG C.
Compared to the prior art, the beneficial effects of the invention are as follows：
Nitrile rubber of the present invention/CSM composition has excellent heat-proof aging and ozone aging
Can, it is embodied in：
1st, contain acrylonitrile chain link on the strand of nitrile rubber, have compatible well with polarity CSM
Property.Nitrile rubber and CSM it is compound, both overcome the resistance to ozone of nitrile rubber, resistance to elevated temperatures difference and lacked
Point, compensate for again CSM oil resistivity it is not enough the characteristics of, compensate for CSM processing characteristics
Bad shortcoming.
2nd, using two kinds of compoundings of plasticizer, the resistance to low of nitrile rubber/CSM composition had both been improved
Warm nature energy, can meet the resistance to elevated temperatures of sizing material again.Trioctyl trimellitate (TOTM) is a kind of plasticizer of macromolecule, can be improved
The heat resistance of said composition, and with the plasticizer RS-107 of another low-molecular-weight, in the composition, reduce composition molecule
Inter-chain action power, improves the resistance to low temperature of composition.
3rd, the present invention uses unleaded vulcanizing system, environment-protecting asepsis, the harmful substance without the limitation of REACH regulations；For giving birth to
Cure time is short when producing nitrile rubber/CSM composition, with short production cycle, reduces energy consumption, has saved life
While producing cost, the quality of product is improve.
Specific embodiment
Below by specific embodiment, technical scheme is described.
Component and the consumption such as institute of table 1 of the high durable type nitrile rubber/CSM composition of embodiment 1-4
Show, be prepared from by following methods：Add nitrile rubber, CSM, lubricant, anti-old simultaneously in banbury
Agent and acid-acceptor, stir and knead to after 45~55 DEG C, add reinforcing agent and plasticizer, continue stirring and knead to after 75~85 DEG C,
Vulcanizing agent is added, when continuation mixing to temperature reaches 110~120 DEG C, stops stirring, dumping.It is mixed to what is obtained on a mill
Refining glue is thin logical three times, and plastic emitting, by air cooler, is cooled to 25~40 DEG C.
The component and consumption of the nitrile rubber elastomeric compound of comparative example 1 as shown in table 1, are prepared from by following methods：Close
Nitrile rubber, lubricant, age resistor and acid-acceptor are added in mill simultaneously, stirring is kneaded to after 45~55 DEG C, adds reinforcing agent
And plasticizer, to 75~85 DEG C, addition vulcanizing agent when continuation mixing to temperature reaches 110~120 DEG C, stops for continuation stirring mixing
Only stir, dumping.Thin to the elastomeric compound for obtaining logical three times on a mill, plastic emitting, by air cooler, is cooled to 25~40
℃。
Comparative example 1 and composition obtained in embodiment 1-4 respectively at 175 DEG C, vulcanization can prepare sulphur within 10 minutes
Change test piece.
The component and consumption (mass unit of the embodiment 1-4 nitrile rubbers of table 1/CSM composition：Gram)
In table 1, the nitrile rubber that embodiment 1-3, comparative example are used is nitrile rubber rubber, acrylonitrile content 28~
35%.The nitrile rubber that embodiment 4 is used is nitrile rubber/poly (vinyl chloride) blend, and the production trade mark is PB3330G, wherein fourth
Nitrile rubber and polyvinyl chloride mass ratio are 7：3.
CSM is CSM 3304 (CSM3304).
The experimental performance detection data of the nitrile rubber of above-described embodiment/CSM composition such as table 2：
Nitrile rubber/CSM composition properties parameter obtained in the embodiment 1-4 of table 2
A few group of formula acquired results are analyzed more than, and the rubber composition being made according to inventive formulation is in 125 DEG C of rings
72h elongation changes are no more than 10 less than 50%, firmness change under border, and hardness and elongation change can well react rubber
Ageing-resistant performance, hardness and elongation change are bigger, and rubber heat resistance is poorer, illustrate that present composition ageing properties are notable
Better than exclusive use nitrile rubber.And 336h occurs without crack performance under the ozone environment of 100pphm × 40 DEG C × elongation 20%,
Also have excellent black brittleness, illustrate nitrile rubber/CSM composition have excellent heat-proof aging and
Ozone aging performance, possesses high-weatherability energy.
Under each component for not changing embodiment 4, only rubber is changed into the PB3330G of 100 weight portions, its heat-resisting 125 DEG C
After × 72h is aging, firmness change is+14, and tensile strength is+20.3, and elongation rate of tensile failure is -65.1%, the implementation in contrast table 2
Data after the heat-resisting 125 DEG C × 72h of example 4 is aging, hydraulic performance decline is very big.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to structure of the invention
Think and scope is defined, under the premise of design concept of the present invention is not departed from, ordinary skill technical staff is to this hair in this area
The all variations and modifications that bright technical scheme is made, all should fall into protection scope of the present invention, claimed skill of the invention
Art content has all been recorded in detail in the claims.
Claims (10)
1. a kind of weather resistant nitrile rubber/CSM composition, it is characterised in that it is by following mass parts
Component is prepared from：
Wherein, the total amount of described nitrile rubber and CSM is 100 mass parts.
2. weather resistant nitrile rubber/CSM composition according to claim 1, it is characterised in that described
High durable type nitrile rubber/CSM composition be to be prepared from by the component of following mass parts：
3. weather resistant nitrile rubber/CSM composition according to claim 2, it is characterised in that described
High durable type nitrile rubber/CSM composition be to be prepared from by the component of following mass parts：
4. weather resistant nitrile rubber/CSM composition according to claim 1, it is characterised in that described
Nitrile rubber be at least one in nitrile rubber rubber, nitrile rubber/poly (vinyl chloride) blend.
5. weather resistant nitrile rubber/CSM composition according to claim 1, it is characterised in that described
Reinforcing agent be fast extrude in carbon black N550, spray carbon black, semi-reinforcing hydrocarbon black N774, natural gas semi-reinforcing hydrocarbon black, potter's clay, talcum
At least one in powder, precipitated calcium carbonate.
6. weather resistant nitrile rubber/CSM composition according to claim 1, it is characterised in that described
Plasticizer be in dibutyl phthalate, trioctyl trimellitate (TOTM), plasticizer RS-107 or polyesters plasticizer at least
It is a kind of；It is preferred that the quality of trioctyl trimellitate (TOTM), the mixing of plasticizer RS-107, trioctyl trimellitate (TOTM) and plasticizer RS-107
Than being 1.5~2.5：1.
7. weather resistant nitrile rubber/CSM composition according to claim 1, it is characterised in that described
Vulcanizing agent be the thio thiuram of tetramethyl two, 2,2'- dithio-bis-benzothiazoles, bis-pentamethylenethiuram tetrasulfide, N-
Between cyclohexyl -2-[4-morpholinodithio sulfenamide, Triallyl isocyanurate, N, N'- in penylene BMI at least
Two kinds.
8. weather resistant nitrile rubber/CSM composition according to claim 1, it is characterised in that described
Lubricant be at least one in WB222, stearic acid, oleamide, zinc stearate.
9. weather resistant nitrile rubber/CSM composition according to claim 1, it is characterised in that described
Age resistor be 2- acetone diphenlyamine reactions product, 6- ethyoxyl -2,2,4- trimethyl -1,2- dihyaroquinolines, dibutyl two
At least one in nickel dithiocarbamate, N- phenyl-N '-isopropyl p-phenylenediamine；
Described acid-acceptor is at least one in activated magnesia 150, hydrotalcite DHT-4A, calcium stearate, calcium hydroxide.
10. the preparation method of the weather resistant nitrile rubber/CSM composition described in claim 1, its feature
It is step as follows：Add nitrile rubber, CSM, lubricant, age resistor simultaneously in banbury and inhale acid
Agent, stirs and kneads to after 45~55 DEG C, adds reinforcing agent and plasticizer, continues stirring and kneads to after 75~85 DEG C, addition vulcanization
Agent, when continuation mixing to temperature reaches 110~120 DEG C, stops stirring, dumping；It is thin to the elastomeric compound for obtaining logical on a mill
Three times, plastic emitting, by air cooler, is cooled to 25~40 DEG C.
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Cited By (8)
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| CN107474410A (en) * | 2017-08-14 | 2017-12-15 | 浙江久运汽车零部件有限公司 | A kind of radiator outlet chlorosulfonated polyethylene sebific duct |
| CN108976510A (en) * | 2018-06-27 | 2018-12-11 | 南京利德东方橡塑科技有限公司 | A kind of microwave vulcanization butyronitrile/polyvinyl chloride rubber composition |
| CN109988347A (en) * | 2019-03-18 | 2019-07-09 | 长春市宏光橡塑制品有限公司 | A kind of rubber alloy material and its preparation method and application |
| CN110041634A (en) * | 2019-05-22 | 2019-07-23 | 无锡二橡胶股份有限公司 | A kind of factory formula of efficient swelling resistance rubber roller |
| WO2020011005A1 (en) * | 2018-07-13 | 2020-01-16 | 杭州星庐科技有限公司 | Chlorine-containing rubber composition, and application thereof and preparation method therefor |
| CN113121895A (en) * | 2021-04-16 | 2021-07-16 | 和峻（广州）胶管有限公司 | High-wear-resistance rubber hydraulic hose material composition |
| CN114196084A (en) * | 2021-12-31 | 2022-03-18 | 厦门富士特橡塑有限公司 | Nitrile rubber-chlorosulfonated polyethylene rubber and preparation method thereof |
| CN116574339A (en) * | 2023-06-02 | 2023-08-11 | 广州市明兴电缆有限公司 | Flame-retardant corrosion-resistant cable sheath material and preparation method thereof |
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| CN116574339A (en) * | 2023-06-02 | 2023-08-11 | 广州市明兴电缆有限公司 | Flame-retardant corrosion-resistant cable sheath material and preparation method thereof |
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