Carbon material enhancing rubber and preparation method thereof
Technical field
The present invention relates to materials science field, and specifically, the present invention relates to carbon material enhancing rubber and preparation method thereof.
Background technology
High hard carbon black is largely used in tire industry as reinforced filling, improves the mechanical property of rubber.But carbon black
Particle has the characteristics that heat is big, heat conductivility is poor, and sizing material easily produces very high internal temperature rise in long-term high load capacity use,
So as to cause de- shoulder, blow out, riding safety is threatened.While normally travel, tire is also taken on car
The task that the electric charge export of body aggregation eliminates, therefore tire material also there are certain requirements electric conductivity.
However, existing elastomeric material still has much room for improvement.
The content of the invention
It is contemplated that solve at least some of the technical problems in related technologies.For this reason, the present invention
One purpose is to propose carbon material enhancing rubber and preparation method thereof.Carbon material enhancing rubber has more preferable conduction, leads
Heat and endurance, flexible resistance.
In the first aspect of the present invention, the present invention proposes a kind of carbon material enhancing rubber.According to an embodiment of the invention,
Carbon material enhancing rubber includes:The base rubber of 100 parts by weight, the carbon black of 10~50 parts by weight, the carbon materials of 1~10 parts by weight
Expect compounded mix, the silane coupling agent of 1~10 parts by weight, the activating agent of 1~10 parts by weight, the antioxidant of 1~5 parts by weight, 1~
The antiscorching agent of the accelerating agent of 3 parts by weight, the sulphur of 1~3 parts by weight and 0.1~0.3 parts by weight;The carbon material compounded mix bag
Carbon material is included, the carbon material is at least one of graphene, graphene oxide and carbon nanotubes.
Carbon material enhancing rubber according to embodiments of the present invention, relative to existing elastomeric material, have conductive, heat conduction and
Endurance, flexible resistance.
In addition, carbon material enhancing rubber according to the above embodiment of the present invention can also have technology spy additional as follows
Sign:
In some embodiments of the invention, the carbon material compounded mix further includes affine modifying agent;The carbon material
For at least one of graphene, graphene oxide and carbon nanotubes, it is highly preferred that the carbon material is graphene and carbon nanometer
Pipe quality 0.5~2:1 mixture;The affine modifying agent is natural emulsion and/or liquid rubber.
In some embodiments of the invention, the carbon material compounded mix further includes dispersed modifier, described to disperse to change
Property agent is polyvinylpyrrolidone, neopelex, dodecyl sodium sulfate, cetylamine and poly N-ethylene yl acetamide
At least one of.
In some embodiments of the invention, the dispersed modifier is the 0.01~10% of the carbon material quality.
In some embodiments of the invention, the affine modifying agent is Heveatex, liquid cis butadiene, liquid isoamyl
At least one of rubber, liquid styrene butadiene rubber and liquid nitrile rubber.
In some embodiments of the invention, the quality of the affine modifying agent for 0.01 times of the carbon material quality with
On.
In some embodiments of the invention, the carbon material enhancing rubber further includes:High-dispersion white carbon black, the high score
Dissipate parts by weight of the white carbon in the carbon material strengthens rubber and be not more than 30.
In some embodiments of the invention, described matrix rubber is in natural rubber, butadiene rubber and butadiene-styrene rubber
At least one.
In some embodiments of the invention, the carbon black be carbon black N330, carbon black N234 and carbon black N220 at least
One of;The antioxidant be antioxidant 4010NA, antioxidant 4020, anti-aging agent RD, antioxidant A and microwax at least it
One;The accelerating agent is captax, altax, accelerant CZ, accelerant NOBS, accelerator DZ, Vulcanization accelerator TMTD and promotion
At least one of agent TMTM;The antiscorching agent is anti-scorching agent CTP;The activating agent is stearic acid and zinc oxide mix, its
Middle stearic acid and zinc oxide mass ratio 1:1~1:3.
In the second aspect of the present invention, the present invention proposes a kind of side for the carbon material enhancing rubber for preparing above-described embodiment
Method.According to an embodiment of the invention, this method includes:At least one of graphene, graphene oxide and carbon nanotubes are made
For into aqueous dispersions, affine modifying agent is added, obtained solid material is collected and carries out drying process, to obtain carbon material
Compounded mix;Base rubber, carbon black and the carbon material compounded mix are supplied into mixer and carry out mixing, to obtain
One batch mixing;First batch mixing is mixed with high-dispersion white carbon black, silane coupling agent, activating agent and antioxidant, to obtain
Two batch mixings;Second batch mixing is supplied to open mill, is mixed with sulphur, accelerating agent and antiscorching agent and carries out mill, so as to
Strengthen rubber to the carbon material.
Thus, carbon material enhancing rubber is prepared using the method for preparing carbon material enhancing rubber of the embodiment of the present invention
Glue, under the action of dispersed modifier and affine modifying agent, effectively increases the surface-active of carbon material, so that carbon material is easy
In dispersed in High-molecular rubber material, further promotion nano-carbon material outstanding conduction, heat conductivility and mechanical property
Performance so that the carbon material enhancing rubber phase being prepared for existing elastomeric material, has conductive, heat conduction and resistance to tired
Labor, flexible resistance.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Embodiment
The embodiment of the present invention is described below in detail.The embodiments described below is exemplary, and is only used for explaining this hair
It is bright, and be not considered as limiting the invention.Particular technique or condition are not specified in embodiment, according to text in the art
Offer described technology or condition or carried out according to product description.Reagents or instruments used without specified manufacturer,
For can be with conventional products that are commercially available.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.
In the first aspect of the present invention, the present invention proposes a kind of carbon material enhancing rubber.According to an embodiment of the invention,
Carbon material enhancing rubber includes:The base rubber of 100 parts by weight, the carbon black of 10~50 parts by weight, the carbon materials of 1~10 parts by weight
Expect compounded mix, the silane coupling agent of 1~10 parts by weight, the activating agent of 1~10 parts by weight, the antioxidant of 1~5 parts by weight, 1~
The antiscorching agent of the accelerating agent of 3 parts by weight, the sulphur of 1~3 parts by weight and 0.1~0.3 parts by weight;The carbon material compounded mix bag
Carbon material is included, the carbon material is at least one of graphene, graphene oxide and carbon nanotubes.
According to an embodiment of the invention, by the way that carbon material compounded mix to be used as to the reinforced filling of base rubber, Ke Yili
With the mechanical property of graphene, graphene oxide or the outstanding conduction of carbon nanotubes, heat conductivility and superelevation to base rubber
Reinforcement is carried out, so that the carbon material enhancing rubber being prepared has conduction, heat conduction and the endurance of higher, flexible resistance
Energy.
According to a particular embodiment of the invention, carbon material compounded mix further includes affine modifying agent and dispersed modifier;Institute
Carbon material is stated as at least one of graphene, graphene oxide and carbon nanotubes;The affine modifying agent for natural emulsion and/
Or liquid rubber;The dispersed modifier is polyvinylpyrrolidone, neopelex, dodecyl sodium sulfate, ten
At least one of hexamine and poly N-ethylene yl acetamide.
It is weak with other matrix active forces due to graphene/carbon nano-tube surface inertness, it is not easy in High-molecular rubber material
It is dispersed.If be in a conventional manner kneaded itself and macromolecule matrix material, the lamellar structure of graphene easily stacks, carbon is received
Mitron is easily reunited, and mechanics breakpoint is formed in macromolecule matrix, damages the mechanical property of composite material.And then inventor pass through it is big
Amount experiment is found, after the dispersion liquid of above-mentioned dispersed modifier formation fine dispersion is added into carbon material, is added affine
Modifying agent, can be effectively facilitated nano-carbon material and disperse in macromolecule matrix, it is excellent to be further conducive to nano-carbon material
The performance of elegant conductive, heat conductivility and mechanical property, so that conduction of the carbon material enhancing rubber with higher being prepared,
Heat conduction and endurance, flexible resistance.
According to a particular embodiment of the invention, the dosage of above-mentioned dispersed modifier can be carbon material quality 0.01~
10%.Thus, it is possible to the surface-active of carbon material is further improved, so as to further be conducive to carbon material effectively conduction, heat conduction
And performance of the mechanical property in High-molecular rubber material.
According to a particular embodiment of the invention, affine modifying agent can also be different for Heveatex, liquid cis butadiene, liquid
At least one of penta rubber, liquid styrene butadiene rubber and liquid nitrile rubber.
According to a particular embodiment of the invention, the quality of above-mentioned affine modifying agent for 0.01 times of the carbon material quality with
On.Thus, it is possible to further improve the surface-active of carbon material, thus be further conducive to effectively conductive carbon material, heat conduction and
Performance of the mechanical property in High-molecular rubber material.
According to a preferred embodiment of the invention, above-mentioned dispersed modifier uses poly N-ethylene yl acetamide (PNVA).Invention
People has found, PNVA as a kind of spiral non-ionic dispersing agent, have it is amphipathic, relative to other modifying agent, PNVA tools
There are the dispersion efficiency of higher, more excellent heat endurance, and required additive amount is lower.PNVA at normal temperatures can with graphene,
The hydroxyl scion grafting of the carbon material surfaces such as carbon nanotubes, the fine dispersion to nano-carbon material is completed using steric effect.By adopting
By the use of poly N-ethylene yl acetamide as modifying agent, it can further be conducive to the outstanding conductive, heat conductivility of nano carbon material and mechanics
The performance of performance, so that the carbon material enhancing rubber being prepared has conduction, heat conduction and the endurance of higher, flexible resistance
Energy.
According to a particular embodiment of the invention, carbon material of the invention enhancing rubber can also include high-dispersion white carbon black,
Parts by weight of the high-dispersion white carbon black in the carbon material strengthens rubber are not more than 30.Thus, it is possible to further to matrix
Rubber carries out reinforcement, improves the performance of carbon material enhancing rubber product.
According to a particular embodiment of the invention, above-mentioned base rubber can be natural rubber, butadiene rubber and butadiene-styrene rubber
At least one of.Thus, the raw material scope of selecting material of carbon material of the invention enhancing rubber is wide, is more advantageous to the preparation of product.
According to a particular embodiment of the invention, above-mentioned carbon black be carbon black N330, carbon black N234 and carbon black N220 at least
One of.Thus, it is possible to further improve the performance of carbon material enhancing rubber.
According to a particular embodiment of the invention, above-mentioned activating agent is stearic acid and zinc oxide mix, wherein stearic acid and
Zinc oxide mass ratio 1:1~1:3.Thus, it is possible to further activate the vulcanizing system of elastomeric material, carbon material enhancing rubber is improved
The crosslink density and anti-aging property of product.
According to a particular embodiment of the invention, above-mentioned antioxidant for antioxidant 4010NA, antioxidant 4020, anti-aging agent RD,
At least one of antioxidant A and microwax.Thus, it is possible to further delay the aging of product, extend product service life.
According to a particular embodiment of the invention, above-mentioned accelerating agent is captax, altax, accelerant CZ, accelerating agent
At least one of NOBS, accelerator DZ, Vulcanization accelerator TMTD and TM monex TM.Can be further favourable using above-mentioned accelerating agent
In the vulcanization of base rubber, so as to improve the crosslink density and anti-aging property of carbon material enhancing rubber product.
According to a particular embodiment of the invention, above-mentioned antiscorching agent can be anti-scorching agent CTP.Thus, it is possible to effectively avoid rubber
Prevulcanization occurs in process for glue, prevents material from burning.
In the second aspect of the present invention, the present invention proposes a kind of side for the carbon material enhancing rubber for preparing above-described embodiment
Method.According to an embodiment of the invention, this method includes:
(1) at least one of graphene, graphene oxide and carbon nanotubes are prepared into moisture using dispersed modifier
Dispersion liquid, adds affine modifying agent, and obtained solid material is collected and carries out drying process, and to obtain, carbon material is compound to be filled out
Material.
According to a particular embodiment of the invention, after the dispersed modifier of predetermined ratio and affine modifying agent is sequentially added,
Ultrasonic agitation processing can be carried out to batch mixing, and then collects solid material.
(2) base rubber, carbon black and carbon material compounded mix are supplied into mixer and carries out mixing, to obtain first
Batch mixing.
(3) the first batch mixing is mixed with high-dispersion white carbon black, silane coupling agent, activating agent and antioxidant, to obtain
Two batch mixings.
(4) the second batch mixing is supplied to open mill, is mixed with sulphur, accelerating agent and antiscorching agent and carry out mill, so as to
Strengthen rubber to carbon material.
According to a particular embodiment of the invention, by the second batch mixing dumping to open mill, mixed with sulphur, accelerating agent and antiscorching agent
Merge and carry out mill, three times, dumping bottom sheet, strengthens rubber product to left and right cutter to obtain carbon material.
Thus, carbon material enhancing rubber is prepared using the method for preparing carbon material enhancing rubber of the embodiment of the present invention
Glue, under the action of dispersed modifier and affine modifying agent, effectively increases the surface-active of carbon material, so that carbon material is easy
In dispersed in High-molecular rubber material, further promotion nano-carbon material outstanding conduction, heat conductivility and mechanical property
Performance so that the carbon material enhancing rubber phase being prepared for existing elastomeric material, has conductive, heat conduction and resistance to tired
Labor, flexible resistance.
Below with reference to specific embodiment, present invention is described, it is necessary to which explanation, these embodiments are only to describe
Property, without limiting the invention in any way.
Embodiment 1
Carbon material enhancing rubber is prepared according to the following steps:
The PNVA dispersion liquids (dispersed modifier) of the carbon nanotubes of 2.0g, 0.1g 10wt% are added into 250mL deionized waters
In, by ultrasonic agitation, the carbon nano tube dispersion liquid of 8mg/mL is prepared, i.e. the content of dispersed modifier is carbon material quality
0.5%;
0.5g Heveatexes (affine modifying agent) are added, the washing drying of gained flocculation, it is compound pre- to obtain carbon nanotubes
Handle filler;
By natural rubber matrix 100g, it is kneaded in carbon nanotubes compound pretreated filler 2.3g, carbon black 48g input mixer
3min, continues to put into white carbon 10g, silane coupling agent 2g, stearic acid and zinc oxide mix 5g, antioxidant 4010NA 2g, mixes
Refining is uniform, dumping.Sizing material is transferred to open mill, adds sulphur 1.2g, captax 1g, anti-scorching agent CTP 0.2g, left and right cutter
Each 3 times, bottom sheet after mixing;
Film is placed in 2mm thickness moulds, is vulcanized 30min under 143 DEG C, 12.5MPa using vulcanizing press, is obtained carbon materials
Material enhancing rubber product.
Embodiment 2
Method according to embodiment 1 prepares carbon material enhancing rubber, difference lies in, carbon material uses 0.2g carbon nanotubes,
Modifiers dispersants use the PNVA of 0.02g 10wt%, i.e. the content of dispersed modifier is the 0.01% of carbon material quality.
Embodiment 3
Method according to embodiment 1 prepares carbon material enhancing rubber, and difference lies in carbon material uses 2.0g graphenes, changes
Property dispersant use 2g 10wt% PNVA, i.e., the content of dispersed modifier be carbon material quality 10%.
Embodiment 4
Method according to embodiment 1 prepares carbon material enhancing rubber, and difference lies in carbon material uses 2.0g graphite oxides
Alkene, modifiers dispersants use the PNVA of 0.1g 10wt%, i.e. the content of dispersed modifier is the 0.5% of carbon material quality.
Embodiment 5
Method according to embodiment 1 prepares carbon material enhancing rubber, difference lies in, carbon material using 1.0g graphenes and
1.0g carbon nanotubes, modifiers dispersants use the PNVA of 0.5g 10wt%, i.e. the content of dispersed modifier is carbon material quality
2.5%.
Embodiment 6
Method according to embodiment 1 prepares carbon material enhancing rubber, difference lies in, carbon material using 2.0g graphenes and
1.0g carbon nanotubes, modifiers dispersants use the PNVA of 0.1g 10wt%, i.e. the content of dispersed modifier is carbon material quality
0.33%.
Embodiment 7
Carbon material enhancing rubber is prepared according to the following steps:
The carbon nanotubes of 1g and 1g graphenes, the PNVA dispersion liquids (dispersed modifier) of 0.5g 10wt% are added into 250mL
In deionized water, by ultrasonic agitation, the carbon nano tube dispersion liquid of 8mg/mL is prepared, i.e. the content of dispersed modifier is carbon
The 2.5% of quality of materials;
1g liquid cis butadienes (affine modifying agent) are added, the washing drying of gained flocculation, it is compound pre- to obtain carbon material
Handle filler;
By natural rubber matrix 100g, 3min is kneaded in carbon nanotubes compounded mix 1g, carbon black 50g input mixer, after
Continuous input silane coupling agent 1g, stearic acid and zinc oxide mix 1g, antioxidant 4010NA 1g, are kneaded uniform, dumping.Sizing material
It is transferred to open mill, adds sulphur 3g, captax 3g, anti-scorching agent CTP 1g, each 3 times of left and right cutter, bottom sheet after mixing;
Film is placed in 2mm thickness moulds, is vulcanized 30min under 143 DEG C, 12.5MPa using vulcanizing press, is obtained carbon materials
Material enhancing rubber product, properties of product are as shown in table 1.
Embodiment 8
Carbon material enhancing rubber is prepared according to the following steps:
5.0g graphenes and 5.0g carbon nanotubes, the PNVA (dispersed modifier) of 2.5g 10wt% are added 1250mL and gone
In ionized water, by ultrasonic agitation, the carbon nano tube dispersion liquid of 8mg/mL is prepared, i.e. the content of dispersed modifier is carbon materials
Expect the 2.5% of quality;
5g Heveatexes (affine modifying agent) are added, the washing drying of gained flocculation, obtains carbon nanotube filler;
By natural rubber matrix 100g, 3min is kneaded in carbon nanotubes compounded mix 10g, carbon black 10g input mixer, after
Continuous input white carbon 30g, silane coupling agent 10g, stearic acid and zinc oxide mix 10g, antioxidant 4010NA 5g, are kneaded equal
It is even, dumping.Sizing material is transferred to open mill, adds sulphur 1.2g, captax 2g, anti-scorching agent CTP 0.2g, left and right cutter each 3
It is secondary, bottom sheet after mixing;
Film is placed in 2mm thickness moulds, is vulcanized 30min under 143 DEG C, 12.5MPa using vulcanizing press, is obtained carbon materials
Material enhancing rubber product, properties of product are as shown in table 1.
Comparative example 1
Method according to embodiment 1 prepares carbon material enhancing rubber, and difference lies in without using carbon material filler, in formula
Reinforced filling (carbon black 50g, white carbon 10g) directly participates in being kneaded, and blank group sample is prepared.
Comparative example 2
Method according to embodiment 1 prepares carbon material enhancing rubber, and difference lies in do not add the PNVA of 0.1g 10wt%
Dispersion liquid, is prepared carbon material enhancing rubber product.
Embodiment and the contrast of comparative example properties of product are as shown in table 1:
Table 1
The result shows that relative to the blank sample of comparative example 1, graphene is added on a small quantity, graphene oxide carbon nanotubes is made
For reinforcement carbon material, or both graphene and carbon nanotubes compounded, the electric conductivity and mechanicalness of product can be significantly improved
Energy.Relative to comparative example 2, using the PNVA dispersion liquids of 0.1g 10wt% as dispersed modifier, product can be further improved
Electric conductivity and mechanical performance.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms is not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
Combined in an appropriate manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this area
Art personnel can be tied the different embodiments or example described in this specification and different embodiments or exemplary feature
Close and combine.
Although the embodiment of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.