CN108864691A - A kind of compound polyurethane material of oil-resisting and heat-resisting - Google Patents
A kind of compound polyurethane material of oil-resisting and heat-resisting Download PDFInfo
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- CN108864691A CN108864691A CN201810679915.8A CN201810679915A CN108864691A CN 108864691 A CN108864691 A CN 108864691A CN 201810679915 A CN201810679915 A CN 201810679915A CN 108864691 A CN108864691 A CN 108864691A
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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
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
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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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- 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
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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Abstract
The invention discloses a kind of compound polyurethane materials of oil-resisting and heat-resisting, are related to polyurethanes technology field, and raw material includes the raw material of following parts by weight：55 parts of polyurethane rubber, 30 parts of nitrile rubber, 15 parts of ethylene-vinyl acetate copolymer, 1.5 parts of sulphur, 2 parts of stearic acid, N, 1 part of penylene bismaleimide, 1.5 parts of vulcanization accelerator, 3 parts of heat stabilizer, 6 parts of carbon black N330,15 parts of carbon black N550,8 parts of white carbon black, 20 parts of kaolin, 2 parts of nano aluminium oxide, ancient grand 2 parts of horse resin, 1 part of diisooctyl phthalate, 1 part of anti-aging agent, 1 part of hydroxy silicon oil between N'-.Compound polyurethane material compression set of the invention is small, and intensity is high, has good heat resistance and oil resistivity, water resistance, resistance to ag(e)ing are good, long service life.
Description
Technical field
The present invention relates to polyurethanes technology field more particularly to a kind of compound polyurethane materials of oil-resisting and heat-resisting.
Background technique
Polyurethane is the general name of the compound containing carbamate groups in the molecule, is said in a broad sense, in addition to amino first
It further include all poly- as derived from the isocyanate compounds such as urea groups, allophanate group, biuret groups outside acid esters based compound
Close object.Polyurethane resin as a kind of high molecular material with the characteristics such as high intensity, tear-proof, oil resistant, wear-resisting, at present by
As fields such as roller, conveyer belt, hose, auto parts, sole, synthetic leather, wire and cables.But polyurethane is heat-resisting
Property be not very well, under the high temperature conditions in use, mechanical properties decrease is obvious, certain fields are used for along with it, there are oil resistants
The also less desirable defect of property, to limit the application of polyurethane material.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of compound polyurethane material of oil-resisting and heat-resisting,
The material compression set is small, and intensity is high, has good heat resistance and oil resistivity.
A kind of compound polyurethane material of oil-resisting and heat-resisting proposed by the present invention, raw material include the raw material of following parts by weight：
55-70 parts of polyurethane rubber, 22-30 parts of nitrile rubber, 8-15 parts of ethylene-vinyl acetate copolymer, 1.5-2.5 parts of sulphur,
1-2 parts of stearic acid, N, 1-2 parts of penylene bismaleimide, 1.5-3 parts of vulcanization accelerator, 3-7 parts of heat stabilizer, carbon black between N'-
6-12 parts of N330,7-15 parts of carbon black N550,8-15 parts of white carbon black, 12-20 parts of kaolin, 2-5 parts of nano aluminium oxide, Gu Longma
2-4 parts of resin, 1-3 parts of diisooctyl phthalate, 1-2 parts of anti-aging agent, 1-2 parts of hydroxy silicon oil.
Preferably, vinyl acetate content is 4-8% in the ethylene-vinyl acetate copolymer.
Preferably, acrylonitrile content is 33-37% in the nitrile rubber.
Preferably, the heat stabilizer prepare it is as follows：Basalt fibre is added in sodium hydroxide solution, is stirred,
It is dry, obtain pretreatment basalt fibre；Glucose is dissolved in water, is then added and pre-processes basalt fibre, ultrasonic disperse, then
Pour into and carry out hydro-thermal reaction in reaction kettle, wash, it is dry, place into Muffle furnace calcined under nitrogen atmosphere to get.
Preferably, the heat stabilizer prepare it is as follows：4-7 parts of basalt fibres are added to 20-28 parts of 2-4% hydrogen-oxygens
Change in sodium solution, stirs 20-30min, it is dry, obtain pretreatment basalt fibre；7-10 parts of glucose are dissolved in 70-90 parts of water,
Then pretreatment basalt fibre is added, ultrasonic disperse 1-2h is subsequently poured into reaction kettle in 190-210 DEG C of hydro-thermal reaction 5-
8h is washed, dry, is placed into Muffle furnace, under nitrogen atmosphere in 450-500 DEG C of calcining 1-2h to get.
Preferably, the vulcanization accelerator is one or both of accelerant NOBS, altax and Vulcanization accelerator TMTD
The mixture of composition.
Preferably, the content of Vulcanization accelerator TMTD is 40-70% in the vulcanization accelerator.
Preferably, the antiager is anti-aging agent RD and antioxidant 2246 according to weight ratio 5-7：2-3 composition.
The compound polyurethane material of oil-resisting and heat-resisting of the present invention can be prepared according to conventional preparation process.
Beneficial effect：The present invention using polyurethane rubber, nitrile rubber and ethylene-vinyl acetate copolymer as matrix,
In, the addition of ethylene-vinyl acetate copolymer can be improved compatibility and mechanical property between three, and intermingling material has
Good oil resistivity, heat resistance, resistance to low temperature；Sulphur, stearic acid, N are selected, penylene bismaleimide is with cooperation between N'-
With can prevent recovery, reduce calorific value, extend the char length of sizing material, control vulcanization time, improve the heat-resisting of sizing material
Property, it is ageing-resistant；In the preparation of heat stabilizer, it will be added in glucose solution after basalt fibre lye slight erosion, then
Carbosphere is prepared using hydrothermal reaction at low temperature, through calcination processing, carbosphere obtained can be good at being supported on basalt fibre table
Face, and the carbosphere prepared contains a variety of oxygen-containing functional groups such as hydroxyl, carbonyl, so that the heat stabilizer and matrix are direct
Interfacial bonding property is good, and the thermal stability of carbosphere is good, acid and alkali-resistance, heating conduction are excellent, large specific surface area, is loaded to tool
There is a basalt fibre surface, improve the reunion between carbosphere, further increases the high temperature resistance of material, thermal stability and strong
Degree；Carbon black N330, carbon black N550, white carbon black, kaolin, nano aluminium oxide mating reaction improve the mechanical property, heat-resisting of sizing material
Property, oil resistivity, ageing-resistant performance；Compound polyurethane material compression set prepared by the present invention is small, and intensity is high, has fine
Heat resistance and oil resistivity, and water resistance, resistance to ag(e)ing are good, long service life.
Specific embodiment
In the following, technical solution of the present invention is described in detail by specific embodiment.
Embodiment 1
A kind of compound polyurethane material of oil-resisting and heat-resisting proposed by the present invention, raw material include the raw material of following parts by weight：
55 parts of polyurethane rubber, 30 parts of nitrile rubber, 15 parts of ethylene-vinyl acetate copolymer, 1.5 parts of sulphur, 2 parts of stearic acid, N,
1 part of penylene bismaleimide, 1.5 parts of vulcanization accelerator, 3 parts of heat stabilizer, 6 parts of carbon black N330, carbon black N550 15 between N'-
Part, ancient grand 2 parts of horse resin, 1 part of diisooctyl phthalate, is prevented 8 parts of white carbon black, 20 parts of kaolin, 2 parts of nano aluminium oxide
1 part of old agent, 1 part of hydroxy silicon oil.
Embodiment 2
A kind of compound polyurethane material of oil-resisting and heat-resisting proposed by the present invention, raw material include the raw material of following parts by weight：
70 parts of polyurethane rubber, 22 parts of nitrile rubber, 8 parts of ethylene-vinyl acetate copolymer, 2.5 parts of sulphur, 1 part of stearic acid, N,
2 parts of penylene bismaleimide, 3 parts of vulcanization accelerator, 7 parts of heat stabilizer, 12 parts of carbon black N330, carbon black N550 7 between N'-
Part, ancient grand 4 parts of horse resin, 3 parts of diisooctyl phthalate, is prevented 15 parts of white carbon black, 12 parts of kaolin, 5 parts of nano aluminium oxide
2 parts of old agent, 2 parts of hydroxy silicon oil.
Embodiment 3
A kind of compound polyurethane material of oil-resisting and heat-resisting proposed by the present invention, raw material include the raw material of following parts by weight：
60 parts of polyurethane rubber, 27 parts of nitrile rubber, 13 parts of ethylene-vinyl acetate copolymer, 1.8 parts of sulphur, 1.7 parts of stearic acid,
1.2 parts of penylene bismaleimide, 1.8 parts of vulcanization accelerator, 4.5 parts of heat stabilizer, 8 parts of carbon black N330, carbon black between N, N'-
13 parts of N550,10 parts of white carbon black, 14 parts of kaolin, 3 parts of nano aluminium oxide, ancient grand 2.5 parts of horse resin, phthalic acid two are different
1.5 parts of last of the ten Heavenly stems ester, 1.5 parts of anti-aging agent, 1.4 parts of hydroxy silicon oil；
Wherein, vinyl acetate content is 4.2-5.3%, acrylonitrile in nitrile rubber in ethylene-vinyl acetate copolymer
Content is 33-35%；
Wherein, heat stabilizer prepare it is as follows：4 parts of basalt fibres are added in 20 part of 2% sodium hydroxide solution, are stirred
20min is mixed, it is dry, obtain pretreatment basalt fibre；7 parts of glucose are dissolved in 70 parts of water, it is fine that pretreatment basalt is then added
Dimension, ultrasonic disperse 1h are subsequently poured into reaction kettle in 190 DEG C of hydro-thermal reaction 5h, wash, dry, place into Muffle furnace, in nitrogen
Atmosphere enclose under in 450 DEG C of calcining 1h to get；
Wherein, vulcanization accelerator is accelerant NOBS and Vulcanization accelerator TMTD according to weight ratio 5：The mixture of 5 compositions；It is anti-ageing
Agent is anti-aging agent RD and antioxidant 2246 according to weight ratio 5：2 compositions.
Embodiment 4
A kind of compound polyurethane material of oil-resisting and heat-resisting proposed by the present invention, raw material include the raw material of following parts by weight：
68 parts of polyurethane rubber, 23 parts of nitrile rubber, 9 parts of ethylene-vinyl acetate copolymer, 2.3 parts of sulphur, 1.2 parts of stearic acid, N,
1.6 parts of penylene bismaleimide, 2.5 parts of vulcanization accelerator, 6 parts of heat stabilizer, 10 parts of carbon black N330, carbon black N550 between N'-
10 parts, 13 parts of white carbon black, 18 parts of kaolin, 4 parts of nano aluminium oxide, ancient grand 3.5 parts of horse resin, diisooctyl phthalate
2.5 parts, 1.8 parts of anti-aging agent, 1.7 parts of hydroxy silicon oil；
Wherein, vinyl acetate content is 6.5-7.8%, acrylonitrile in nitrile rubber in ethylene-vinyl acetate copolymer
Content is 36-37%；
Wherein, heat stabilizer prepare it is as follows：7 parts of basalt fibres are added in 28 part of 4% sodium hydroxide solution, are stirred
30min is mixed, it is dry, obtain pretreatment basalt fibre；10 parts of glucose are dissolved in 90 parts of water, it is fine that pretreatment basalt is then added
Dimension, ultrasonic disperse 2h is subsequently poured into reaction kettle in 210 DEG C of hydro-thermal reaction 8h, places into Muffle furnace, under nitrogen atmosphere in
500 DEG C of calcining 2h, washing, it is dry to get；
Wherein, vulcanization accelerator is altax and Vulcanization accelerator TMTD according to weight ratio 3：The mixture of 7 compositions；Antiager
It is anti-aging agent RD and antioxidant 2246 according to weight ratio 7：3 compositions.
Embodiment 5
A kind of compound polyurethane material of oil-resisting and heat-resisting proposed by the present invention, raw material include the raw material of following parts by weight：
64 parts of polyurethane rubber, 25 parts of nitrile rubber, 11 parts of ethylene-vinyl acetate copolymer, 2.1 parts of sulphur, 1.5 parts of stearic acid,
1.4 parts of penylene bismaleimide, 2.2 parts of vulcanization accelerator, 5.5 parts of heat stabilizer, 9 parts of carbon black N330, carbon black between N, N'-
11 parts of N550,12 parts of white carbon black, 16 parts of kaolin, 3.5 parts of nano aluminium oxide, ancient grand 3 parts of horse resin, phthalic acid two are different
2 parts of last of the ten Heavenly stems ester, 1.5 parts of anti-aging agent, 1.5 parts of hydroxy silicon oil；
Wherein, vinyl acetate content is 5.5-6.8%, acrylonitrile in nitrile rubber in ethylene-vinyl acetate copolymer
Content is 34.7-36.2%；
Wherein, heat stabilizer prepare it is as follows：6 parts of basalt fibres are added in 25 part of 3% sodium hydroxide solution, are stirred
25min is mixed, it is dry, obtain pretreatment basalt fibre；9 parts of glucose are dissolved in 80 parts of water, it is fine that pretreatment basalt is then added
Dimension, ultrasonic disperse 1.5h are subsequently poured into reaction kettle in 205 DEG C of hydro-thermal reaction 6h, wash, dry, place into Muffle furnace,
Under nitrogen atmosphere in 480 DEG C of calcining 1.5h to get；
Wherein, vulcanization accelerator is accelerant NOBS, altax, Vulcanization accelerator TMTD according to 2.8：2.7：4.5 compositions
Mixture；Antiager is anti-aging agent RD and antioxidant 2246 according to weight ratio 6.3：2.5 compositions.
Comparative example
For the material composition of compound polyurethane material in addition to without containing heat stabilizer, other ingredients and preparation method are same
Embodiment 5.
Compound polyurethane material in 1-5 of the embodiment of the present invention and comparative example is prepared according to conventional compound polyurethane material
Technique is prepared.
Compound polyurethane material in 3-5 of the embodiment of the present invention and comparative example is tested for the property, testing result is seen below
Table.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of compound polyurethane material of oil-resisting and heat-resisting, which is characterized in that its raw material includes the raw material of following parts by weight：Poly- ammonia
55-70 parts of ester rubber, 22-30 parts of nitrile rubber, 8-15 parts of ethylene-vinyl acetate copolymer, 1.5-2.5 parts of sulphur, tristearin
1-2 parts of penylene bismaleimide, 1.5-3 parts of vulcanization accelerator, 3-7 parts of heat stabilizer, carbon black N330 between 1-2 parts sour, N, N'-
6-12 parts, 7-15 parts of carbon black N550,8-15 parts of white carbon black, 12-20 parts of kaolin, 2-5 parts of nano aluminium oxide, ancient grand horse resin
2-4 parts, 1-3 parts of diisooctyl phthalate, 1-2 parts of anti-aging agent, 1-2 parts of hydroxy silicon oil.
2. the compound polyurethane material of oil-resisting and heat-resisting according to claim 1, which is characterized in that the ethyl vinyl acetate second
Vinyl acetate content is 4-8% in enoate copolymer.
3. the compound polyurethane material of oil-resisting and heat-resisting according to claim 1 or 2, which is characterized in that the nitrile rubber
Middle acrylonitrile content is 33-37%.
4. the compound polyurethane material of oil-resisting and heat-resisting according to claim 1 to 3, which is characterized in that the thermostabilization
Preparing for agent is as follows：Basalt fibre is added in sodium hydroxide solution, is stirred, it is dry, obtain pretreatment basalt fibre；It will
Glucose is dissolved in water, and pretreatment basalt fibre is then added, and ultrasonic disperse is subsequently poured into reaction kettle and carries out hydro-thermal reaction,
Washing, it is dry, place into Muffle furnace calcined under nitrogen atmosphere to get.
5. the compound polyurethane material of oil-resisting and heat-resisting according to claim 1 to 4, which is characterized in that the thermostabilization
Preparing for agent is as follows：4-7 parts of basalt fibres are added in 20-28 parts of 2-4% sodium hydroxide solutions, 20-30min is stirred,
It is dry, obtain pretreatment basalt fibre；7-10 parts of glucose are dissolved in 70-90 parts of water, pretreatment basalt fibre is then added,
Ultrasonic disperse 1-2h is subsequently poured into reaction kettle in 190-210 DEG C of hydro-thermal reaction 5-8h, washs, dry, places into Muffle furnace
In, under nitrogen atmosphere in 450-500 DEG C of calcining 1-2h to get.
6. the compound polyurethane material of -5 any oil-resisting and heat-resistings according to claim 1, which is characterized in that the vulcanization promotees
It is the mixture that one or both of accelerant NOBS, altax are formed with Vulcanization accelerator TMTD into agent.
7. the compound polyurethane material of oil-resisting and heat-resisting according to claim 6, which is characterized in that in the vulcanization accelerator
The content of Vulcanization accelerator TMTD is 40-70%.
8. the compound polyurethane material of -7 any oil-resisting and heat-resistings according to claim 1, which is characterized in that the antiager
It is anti-aging agent RD and antioxidant 2246 according to weight ratio 5-7：2-3 composition.
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| CN201810679915.8A CN108864691A (en) | 2018-06-27 | 2018-06-27 | A kind of compound polyurethane material of oil-resisting and heat-resisting |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109575570A (en) * | 2018-12-06 | 2019-04-05 | 镇江利德尔复合材料有限公司 | A kind of preparation method of the excellent polyurethane material of novel shape-memory properties |
| CN112708255A (en) * | 2020-12-24 | 2021-04-27 | 广州机械科学研究院有限公司 | Low-temperature-resistant elastomer rubber composition and application thereof |
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| CN112708255A (en) * | 2020-12-24 | 2021-04-27 | 广州机械科学研究院有限公司 | Low-temperature-resistant elastomer rubber composition and application thereof |
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Application publication date: 20181123 |