CN105860166A - Trans-polyisoprene vulcanized rubber and mixing process thereof - Google Patents
Trans-polyisoprene vulcanized rubber and mixing process thereof Download PDFInfo
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- CN105860166A CN105860166A CN201610246586.9A CN201610246586A CN105860166A CN 105860166 A CN105860166 A CN 105860166A CN 201610246586 A CN201610246586 A CN 201610246586A CN 105860166 A CN105860166 A CN 105860166A
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- 229920001195 polyisoprene Polymers 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000004636 vulcanized rubber Substances 0.000 title abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 33
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 31
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 16
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 9
- 239000011593 sulfur Substances 0.000 claims abstract description 9
- 239000011787 zinc oxide Substances 0.000 claims abstract description 8
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 7
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 7
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000008117 stearic acid Substances 0.000 claims abstract description 7
- 238000003490 calendering Methods 0.000 claims description 21
- 238000005486 sulfidation Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 20
- 229920001971 elastomer Polymers 0.000 abstract description 14
- 230000001976 improved effect Effects 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- 238000005096 rolling process Methods 0.000 abstract 6
- 238000007599 discharging Methods 0.000 abstract 1
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 238000004513 sizing Methods 0.000 description 7
- 238000005987 sulfurization reaction Methods 0.000 description 6
- 230000032683 aging Effects 0.000 description 4
- 239000000899 Gutta-Percha Substances 0.000 description 3
- 240000000342 Palaquium gutta Species 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- -1 graphite alkenes Chemical class 0.000 description 3
- 229920000588 gutta-percha Polymers 0.000 description 3
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229920003049 isoprene rubber Polymers 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- DCXXMTOCNZCJGO-UHFFFAOYSA-N tristearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 description 2
- PMJHHCWVYXUKFD-SNAWJCMRSA-N (E)-1,3-pentadiene Chemical compound C\C=C\C=C PMJHHCWVYXUKFD-SNAWJCMRSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000000320 mechanical mixture Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000013040 rubber vulcanization Methods 0.000 description 1
- 239000012781 shape memory material Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 229920003212 trans-1,4-polyisoprene Polymers 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
- B29B7/7495—Systems, i.e. flow charts or diagrams; Plants for mixing rubber
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/52—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders
- B29B7/56—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders with co-operating rollers, e.g. with repeated action, i.e. the material leaving a set of rollers being reconducted to the same set or being conducted to a next set
-
- 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
- C08K3/02—Elements
- C08K3/04—Carbon
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention relates to trans-polyisoprene vulcanized rubber and a mixing process thereof. The mixing process is characterized by comprising the following steps: (1) mixing trans-polyisoprene on an open mill to obtain a rubber sheet; (2) rolling the rubber sheet for 1 to 5 times by rollers and not covering the roller, wherein the roller space is 0.1mm to 0.5mm; (3) adjusting the roller space to be 1mm to 2mm and covering the roller with the rubber sheet; after covering the roller, adjusting the roller space to be 1.5mm to 2mm and continually rolling for 2min to 5min by the roller; (4) adding graphene oxide into the rubber sheet and cutting from each side of the open mill; continually rolling for 2min to 5min by the roller, and then packaging in a triangular bag; (5) adding zinc oxide, stearic acid, sulfur and an accelerating agent NS into the rubber sheet, and continually rolling for 3min to 6min by the roller; then, cutting from each side of the open mill again and continually rolling for 2min to 5min by the roller; (6) taking off the rubber sheet from the open mill and adjusting the roller space to be 0.8mm to 1mm; feeding the rubber sheet from one end and rolling for 3 to 7 times by the roller; then discharging the rubber sheet. By utilizing reinforcing properties of the graphene oxide to high molecular materials, mechanical properties of the trans-polyisoprene vulcanized rubber can be improved.
Description
Technical field
The present invention relates to a kind of trans-polyisoprene vulcanizate and calendering process thereof, belong to field of rubber technology.
Background technology
Trans-polyisoprene (Trans-1,4-Polyisoprene, be called for short TPI) also known as synthetic guttapercha, with
General natural rubber (NR) or isoprene rubber (IR) are isomerss.Owing to TPI the most easily ties
Crystalline substance, apparent is a kind of thermoplastic, and softening point about 60 DEG C can be considered the one between plastics and rubber
Material.After good cure, the crystallinity of TPI is destroyed, and is changed into typical elastomer.Gutta-percha is deposited
At three stage feature.Uncrosslinked gutta-percha does not has elasticity owing to crystallizing hardening, as a kind of low melting point plastic,
Can be used for the ideal material of medical " Gypsum Fibrosum " binder, clamping plate, orthopedic parts, artificial limb etc..With conventional vulcanized
The low cross-linking hard thermostimulation elastomer of formula sulfuration, can serve as thermostimulation type shape-memory material.Work as friendship
After connection degree reaches the marginal value determined, crystallizing at room temperature is obstructed, and becomes soft elastomer, can be used as rubber
Goods.Trans-polyisoprene can use general rubber vulcanization process to vulcanize, generally with sulfur-promotion
Vulcanize at agent vulcanizing system and 150 DEG C-160 DEG C, after vulcanization crosslinking, can improve under high temperature the intensity of sizing material and
Solvent resistance.This method is mainly used in the vulcanizate of trans-polyisoprene.
Graphene is the most emerging class material with carbon element, is widely used in material modified, biological medicine etc.
Field.Its finder obtained Nobel Prize in physics in 2010.Graphene oxide is Graphene preparation process
In presoma, surface has an abundant oxygen-containing functional group, and lot of experiments confirms adding of graphene oxide
Entering and all kinds of macromolecular material performances are all obviously improved effect, product price is significantly less than Graphene simultaneously.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of trans-polyisoprene sulfur
Changing glue and calendering process thereof, utilize the graphene oxide reinforcing character to macromolecular material, exploitation can be significantly
Improve the basic recipe of trans-polyisoprene mechanical property of vulcanized rubber.
The technical scheme provided according to the present invention, described trans-polyisoprene vulcanizate, it is characterized in that, bag
Include following component, component ratio by mass number meter: 100 parts of trans-polyisoprenes, 0.3～0.7 part of tristearin
Acid, 5～7 parts of zinc oxide, 0.5～1 part of accelerator NS, 3～4 parts of sulfur, 0.1～0.9 part of graphene oxide.
The calendering process of described trans-polyisoprene vulcanizate, is characterized in that, comprise the following steps, component
Ratio by mass number meter:
(1) 100 parts of trans-polyisoprenes are carried out mill on a mill until, obtain film；
(2) film that step (1) obtains being crossed roller 1～5 times, not bag roller, roll spacing is 0.1～0.5mm；
(3) roll spacing is adjusted to 1～2mm, makes the film bag roller that step (2) obtains, after bag roller, roll spacing is adjusted
To 1.5～2mm, persistently cross roller 2～5min；
(4) in the film that step (3) obtains, 0.1～0.9 part of graphene oxide is added, every from mill
Side carries out cutter, plays triangle bag after persistently crossing roller 2～5min；
(5) add in the film that step (4) obtains 5～7 parts of zinc oxide, 0.3～0.7 part of stearic acid, 3～
4 parts of sulfur and 0.5～1 part of accelerator NS, persistently cross roller 3～6min；Cut from the every side of mill again
Cutter, persistently crosses roller 2～5min；
(6) from mill, take off film, roll spacing is adjusted to 0.8～1mm, film was sent into from one end
Roller 3～7 times, terminate rear bottom sheet and complete calendering process.
In a detailed description of the invention, the process of described step (1) trans-polyisoprene mill is: will
Trans-polyisoprene roller, mistake roller 8～15 times excessively on a mill until, obtain film；The roller of described mill
Away from for 1.3 ± 0.15mm, roller temperature is 70 ± 5 DEG C.
In a detailed description of the invention, described step (4) carries out 3 times from the every side of mill during cutter
3/4 cutter, plays triangle bag 3.
In a detailed description of the invention, described step (5) carries out 3 times from the every side of mill during cutter
3/4 cutter.
In a detailed description of the invention, in described step (2)～step (6), the roller temperature of mill is protected
Hold at 70 ± 5 DEG C.
In a detailed description of the invention, also including sulfidation, curing temperature is 151 ± 2 DEG C, during sulfuration
Between 20～30 minutes.
In a detailed description of the invention, the roller diameter of described mill is 160mm, and roller width is
320mm, roller speed ratio is 1:1～2, and preliminary roller speed is 10～15m/min.
In a detailed description of the invention, first will before described step (1) trans-polyisoprene carries out mill
Graininess trans-polyisoprene softens 1～2 hour at 60～70 DEG C.
In a detailed description of the invention, the roller diameter of described mill is 160mm, and roller width is
320mm, roller speed ratio is 1:1.4, and preliminary roller speed is 10.4m/min.
The present invention compared with prior art, has the advantage that
(1) performance is controlled: vulcanizate formula of the present invention can be by changing the addition of graphene oxide
Control trans-polyisoprene vulcanizate properties, require to carry to sizing material different performance for different application field
Supply technical support；
(2) addition is little: in vulcanizate formula of the present invention, graphene oxide addition is little, can be significantly
Improve every mechanical property of trans-polyisoprene vulcanizate；
(3) formula constitutes simple: the present invention can be by adding corresponding function component, at tire or other field
The extension of formula is carried out according to different demands；
(4) cost can accept: graphene oxide price becomes downward trend year by year, particularly addition less,
Cost can be born by each application；
(5) adding after small amounts Graphene, trans-polyisoprene vulcanizate is white or yellow, not
Add the black after black-reinforced, therefore sizing material color is required that higher application provides and in a large number should
Possibility；
(6) this formula does not contains white carbon black, can reach or close to the effect of black-reinforced, be applied to tire art,
Sizing material heat can be greatly reduced, improve the endurance quality of tire；
(7) due in formula without white carbon black, it is to avoid under the performance that in mixing process, the mixing inequality of white carbon black causes
Fall；
(8) this formula can be greatly improved trans-polyisoprene vulcanizate ageing resistace, improves making of sizing material
Use the life-span；
(9) compounding process is simple, it is only necessary to mechanical mixture i.e. can reach respective performances index, it is not necessary to add extra
Equipment；
(10) the method improves the serviceability of TPI, and trans-polyisoprene is as a kind of novel green
Environment-friendly materials, expand its range of application, provide probability for promoting this material in wider array of field；
(11) application of graphite alkenes material is the bottleneck problem limiting this Materials, and the method simultaneously can
Expand and improve downstream application scope and the probability of graphite alkenes material with carbon element.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described.
Graphene oxide product used in the embodiment of the present invention is had by the hexa-atomic cellulosic material science and technology share in Changzhou
Limit company provides.
Embodiment 1: the calendering process of a kind of trans-polyisoprene vulcanizate, comprises the following steps, component ratio
Example is counted by weight:
(1) first graininess trans-polyisoprene is softened 1.5 hours at 65 DEG C；Trans poly-different by 100 parts
Pentadiene crosses roller on a mill until, crosses roller 10 times, obtains film；The roll spacing of described mill is 1.3 ±
0.15mm, roller temperature is 70 ± 5 DEG C；The roller diameter of described mill is 160mm, and roller width is 320mm,
Roller speed ratio is 1:1.4, and preliminary roller speed is 10.4m/min；
(2) film that step (1) obtains being crossed roller 2 times, not bag roller, roll spacing is 0.2mm；
(3) roll spacing is adjusted to 1.4mm, makes the film bag roller that step (2) obtains, after bag roller, roll spacing is adjusted
To 1.8mm, persistently cross roller 4min；
(4) in the film that step (3) obtains, add 0.1 part of graphene oxide, enter from the every side of mill
3 3/4 cutteves of row, play triangle bag 3 after persistently crossing roller 3min；
(5) in the film that step (4) obtains, 6 parts of zinc oxide, 0.5 part of stearic acid, 3.5 parts of sulfur are added
Sulphur and 0.7 part of accelerator NS, persistently cross roller 4min；3 3/4 cutteves are carried out again from the every side of mill,
Persistently cross roller 3min；
(6) from mill, take off film, roll spacing is adjusted to 0.8mm, film was sent into from one end roller 6
Secondary, terminate rear bottom sheet and complete calendering process；
(7) sulfuration: curing temperature is 151 DEG C, cure time 22 minutes.
In above-mentioned steps (2)～step (6), the roller temperature of mill is maintained at 70 ± 5 DEG C.
Embodiment 2: with embodiment 1, difference is in embodiment 2 that the consumption of graphene oxide is 0.3 weight
Part.
Embodiment 3: with embodiment 1, difference is in embodiment 3 that the consumption of graphene oxide is 0.5 weight
Part.
Embodiment 4: with embodiment 1, difference is in embodiment 4 that the consumption of graphene oxide is 0.7 weight
Part.
Embodiment 5: with embodiment 1, difference is in embodiment 5 that the consumption of graphene oxide is 0.9 weight
Part.
Embodiment 6: the calendering process of a kind of trans-polyisoprene vulcanizate, comprises the following steps, component ratio
Example is counted by weight:
(1) first graininess trans-polyisoprene is softened 2 hours at 60 DEG C；By 100 parts of trans poly-isoamyls
Diene crosses roller on a mill until, crosses roller 8 times, obtains film；The roll spacing of described mill is 1.3 ± 0.15mm,
Roller temperature is 70 ± 5 DEG C；The roller diameter of described mill is 160mm, and roller width is 320mm, roller
Speed ratio is 1:1, and preliminary roller speed is 10m/min；
(2) film that step (1) obtains being crossed roller 1 time, not bag roller, roll spacing is 0.1mm；
(3) roll spacing is adjusted to 1mm, makes the film bag roller that step (2) obtains, after bag roller, roll spacing is adjusted to
1.5mm, persistently crosses roller 2min；
(4) in the film that step (3) obtains, add 0.1 part of graphene oxide, enter from the every side of mill
3 3/4 cutteves of row, play triangle bag 3 after persistently crossing roller 2min；
(5) in the film that step (4) obtains, 5 parts of zinc oxide, 0.3 part of stearic acid, 3 parts of sulfur are added
With 0.5 part of accelerator NS, persistently cross roller 3min；Carry out 3 3/4 cutteves from the every side of mill again, hold
Continued roller 2min；
(6) from mill, take off film, roll spacing be adjusted to 0.8mm, film was sent into from one end roller 3～
7 times, terminate rear bottom sheet and complete calendering process；
(7) sulfuration: curing temperature is 151 ± 2 DEG C, cure time 20 minutes.
In above-mentioned steps (2)～step (6), the roller temperature of mill is maintained at 70 ± 5 DEG C.
Embodiment 7: the calendering process of a kind of trans-polyisoprene vulcanizate, comprises the following steps, component ratio
Example is counted by weight:
(1) first graininess trans-polyisoprene is softened 1 hour at 70 DEG C；By 100 parts of trans poly-isoamyls
Diene crosses roller on a mill until, crosses roller 15 times, obtains film；The roll spacing of described mill is 1.3 ± 0.15mm,
Roller temperature is 70 ± 5 DEG C；The roller diameter of described mill is 160mm, and roller width is 320mm, roller
Speed ratio is 1:2, and preliminary roller speed is 15m/min；
(2) film that step (1) obtains being crossed roller 5 times, not bag roller, roll spacing is 0.5mm；
(3) roll spacing is adjusted to 2mm, makes the film bag roller that step (2) obtains, after bag roller, roll spacing is adjusted to
2mm, persistently crosses roller 5min；
(4) in the film that step (3) obtains, add 0.9 part of graphene oxide, enter from the every side of mill
3 3/4 cutteves of row, play triangle bag 3 after persistently crossing roller 5min；
(5) in the film that step (4) obtains, 7 parts of zinc oxide, 0.7 part of stearic acid, 4 parts of sulfur are added
With 1 part of accelerator NS, persistently cross roller 6min；Carry out 3 3/4 cutteves from the every side of mill again, continue
Cross roller 5min；
(6) from mill, take off film, roll spacing is adjusted to 1mm, film was sent into from one end roller 7
Secondary, terminate rear bottom sheet and complete calendering process；
(7) sulfuration: curing temperature is 151 ± 2 DEG C, cure time 30 minutes.
In above-mentioned steps (2)～step (6), the roller temperature of mill is maintained at 70 ± 5 DEG C.
To be not added with the trans-polyisoprene vulcanizate of graphene oxide as reference, to embodiment 1～implement
The vulcanizate of example 5 carries out performance test, and test result is as shown in table 1, table 2.
Table 1
Table 2
As shown in Table 1, the properties of vulcanizate with the raising of graphene oxide addition in being gradually increasing
Gesture.After aging, although elongation rate of tensile failure is on a declining curve with the increase of GO content, but embodiment 5
Elongation at break (189%) is still than big (181%) of non-oxidation Graphene.
Compare with the vulcanizate being not added with graphene oxide, the embodiment of the present invention 1～the sulfuration of embodiment 5
The multiple that glue properties promotes is as shown in table 3.
Table 3
As shown in table 3, after adding different content graphene oxide, the elongation rate of tensile failure of sizing material of the present invention
Improve to 1.04-1.14 times, hot strength improve to 1.43-2.26 times, 50% surely stretch and improve to 1.13-5.63
Times, 100% surely stretch raising to 1.09-4.18 times, 300% surely stretch improve to 1.17-4.17 times, tearing strength
Improve to 1.85 times greatly.The hot strength of aging rear sizing material, stress at definite elongation, hardness, tearing strength are all with oxygen
The addition of functionalized graphene presents ascendant trend.Aging rear elongation rate of tensile failure improve to 1.04-1.12 times, stretching by force
Degree improve to 1.00-3.40 times, 50% surely stretch raising to 1.00-5.20 times, 100% surely stretch and improve to 1.00-4.00
Again, tearing strength maximum improves to 1.12-2.00 times.Different demand fields can be according to cured properties demand
The trans-polyisoprene vulcanizate that performance is different is obtained by controlling graphene oxide consumption.
Claims (10)
1. a trans-polyisoprene vulcanizate, it is characterized in that, including following component, component ratio by mass number meter: 100 parts of trans-polyisoprenes, 0.3～0.7 part of stearic acid, 5～7 parts of zinc oxide, 0.5～1 part of accelerator NS, 3～4 parts of sulfur, 0.1～0.9 part of graphene oxide.
2. a calendering process for trans-polyisoprene vulcanizate, is characterized in that, comprises the following steps, component ratio by mass number meter:
(1) 100 parts of trans-polyisoprenes are carried out mill on a mill until, obtain film；
(2) film that step (1) obtains being crossed roller 1～5 times, not bag roller, roll spacing is 0.1～0.5mm；
(3) roll spacing is adjusted to 1～2mm, makes the film bag roller that step (2) obtains, after bag roller, roll spacing is adjusted to 1.5～2mm, persistently crosses roller 2～5min；
(4) in the film that step (3) obtains, add 0.1～0.9 part of graphene oxide, carry out cutter from the every side of mill, after persistently crossing roller 2～5min, play triangle bag；
(5) in the film that step (4) obtains, add 5～7 parts of zinc oxide, 0.3～0.7 part of stearic acid, 3～4 parts of sulfur and 0.5～1 part of accelerator NS, persistently cross roller 3～6min；Carry out cutter again from the every side of mill, persistently cross roller 2～5min；
(6) from mill, take off film, roll spacing is adjusted to 0.8～1mm, film was sent into from one end roller 3～7 times, terminates rear bottom sheet and complete calendering process.
3. the calendering process of trans-polyisoprene vulcanizate as claimed in claim 2, is characterized in that: the process of described step (1) trans-polyisoprene mill is: by trans-polyisoprene roller, mistake roller 8～15 times excessively on a mill until, obtain film；The roll spacing of described mill is 1.3 ± 0.15mm, and roller temperature is 70 ± 5 DEG C.
4. the calendering process of trans-polyisoprene vulcanizate as claimed in claim 2, is characterized in that: carry out 3 3/4 cutteves from the every side of mill during cutter in described step (4), plays triangle bag 3.
5. the calendering process of trans-polyisoprene vulcanizate as claimed in claim 2, is characterized in that: carry out 3 3/4 cutteves from the every side of mill during cutter in described step (5).
6. the calendering process of trans-polyisoprene vulcanizate as claimed in claim 2, is characterized in that: in described step (2)～step (6), the roller temperature of mill is maintained at 70 ± 5 DEG C.
7. the calendering process of trans-polyisoprene vulcanizate as claimed in claim 2, is characterized in that: also include sulfidation, and curing temperature is 151 ± 2 DEG C, cure time 20～30 minutes.
8. the calendering process of trans-polyisoprene vulcanizate as claimed in claim 2, is characterized in that: the roller diameter of described mill is 160mm, and roller width is 320mm, and roller speed ratio is 1:1～2, and preliminary roller speed is 10～15m/min.
9. the calendering process of trans-polyisoprene vulcanizate as claimed in claim 2, is characterized in that: first softened 1～2 hour at 60～70 DEG C by graininess trans-polyisoprene before described step (1) trans-polyisoprene carries out mill.
10. the calendering process of trans-polyisoprene vulcanizate as claimed in claim 2, is characterized in that: the roller diameter of described mill is 160mm, and roller width is 320mm, and roller speed ratio is 1:1.4, and preliminary roller speed is 10.4m/min.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329595A (en) * | 2011-08-10 | 2012-01-25 | 浙江大学 | High-strength polysulfide sealant |
| CN102532629A (en) * | 2011-12-30 | 2012-07-04 | 北京化工大学 | Preparation method of completely peeled oxidation graphene/ rubber nanometer composite material |
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- 2016-04-20 CN CN201610246586.9A patent/CN105860166A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329595A (en) * | 2011-08-10 | 2012-01-25 | 浙江大学 | High-strength polysulfide sealant |
| CN102532629A (en) * | 2011-12-30 | 2012-07-04 | 北京化工大学 | Preparation method of completely peeled oxidation graphene/ rubber nanometer composite material |
Non-Patent Citations (1)
| Title |
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| 王经逸 等: "氧化石墨烯在橡胶中的应用研究进展", 《合成橡胶工业》 * |
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