CN109929149A - For the rubber composition on tire sidewall and vulcanized rubber and its preparation method and application - Google Patents
For the rubber composition on tire sidewall and vulcanized rubber and its preparation method and application Download PDFInfo
- Publication number
- CN109929149A CN109929149A CN201711353811.XA CN201711353811A CN109929149A CN 109929149 A CN109929149 A CN 109929149A CN 201711353811 A CN201711353811 A CN 201711353811A CN 109929149 A CN109929149 A CN 109929149A
- Authority
- CN
- China
- Prior art keywords
- rubber
- weight
- parts
- carbon black
- agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to rubber materials, disclose a kind of rubber composition for tire sidewall and vulcanized rubber and its preparation method and application, contain rubber matrix, initiator, rubber modifier, white carbon black, carbon black, activator, anti-aging agent, softening agent, promotor and vulcanizing agent in the composition, wherein, the rubber modifier is general formula (RO)3SiCH2CH2CH2OCH2The organo silane coupling agent that-X is indicated, the rubber matrix are the mixture of butadiene rubber and natural rubber.Rubber composition of the invention has the advantages that high intensity, low-rolling-resistance, good dynamic flexing, and can be used in tire sidewall by the vulcanized rubber that the composition is formed.
Description
Technical field
The present invention relates to rubber materials, and in particular, to a kind of rubber composition for tire sidewall a kind of prepares sulphur
The application of the method for change rubber and the vulcanized rubber and vulcanized rubber being prepared by this method in tire sidewall.
Background technique
In recent years, in order to adapt to vehicle tyre safety, environmental protection, green development trend, the money of non-petroleum as white carbon black
The features such as source can reduce tire drag, saving automobile fuel consumption because of it, is increasingly taken seriously in tire art, but by
In the stronger surface polarity of white carbon black, its dispersion in rubber matrix is made to become abnormal difficult, thus application receives centainly
Limitation.
CN104530501A discloses a kind of rubber composition for color tyre sidewall discoloration-resistant, has bright-coloured
Color, preferable discoloration-resistant, dark colour sidewall tire do not have within 1 year under strong illumination and damp and hot environment
Metachromatism, which has higher tearing-resistant performance, under strong illumination and damp and hot severe use condition, has fabulous
Discoloration-resistant.CN104311918A discloses a kind of rubber composition at car Runflat tire sidewall position, the rubber
Composition can improve security performance when vehicle driving, reduce or prevent the traffic accident due to caused by tyre puncture and explosion.
However, above-mentioned white carbon black is disclosed in the prior art by addition silane coupling agent Si75 etc. to improve dispersibility,
And Si75 etc. is sulfur-containing compound, and it is higher to process control needs during high-temperature mixing, it controls improper its and is possible to cause
Incipient scorch, and then influence whether the overall performance of composite material.Si75 etc. is easy to produce ethyl alcohol in process, and the presence of ethyl alcohol will
Hidden danger can be brought to the safety of tire.
Therefore, the above-mentioned prior art cannot fully meet high-strength required for the tire sidewall glue containing white carbon black formula
Degree, low-rolling-resistance, good dynamic flexing, it is necessary to which a kind of rubber composition of performance improvement is provided.
Summary of the invention
Present invention aim to address the intensity, the drops that how to improve the rubber for the tire sidewall containing white carbon black formula
The problem of low-rolling-resistance, dynamic flexing, provides a kind of with high intensity, low-rolling-resistance, good dynamic flexing thus
The rubber composition of the advantages of property and the vulcanized rubber that can be used in tire sidewall formed by the composition.
To achieve the goals above, in a first aspect, the present invention provides a kind of rubber composition for tire sidewall, the group
It closes and contains rubber matrix, initiator, rubber modifier, white carbon black, carbon black, activator, anti-aging agent, softening agent, promotor in object
And vulcanizing agent, wherein the rubber matrix is the mixture of butadiene rubber and natural rubber；The rubber modifier is general formula
(RO)3SiCH2CH2CH2OCH2The organo silane coupling agent that-X is indicated, RO is hydrolyzable groups, and X is epoxy group
R1And R2It is each independently H, C1-5Straight chained alkyl or branched alkyl.
Second aspect, the present invention provide a kind of method for preparing vulcanized rubber, this method comprises:
(1) the component A containing rubber matrix, initiator and rubber modifier is carried out first to be kneaded, obtains one section of rubber master batch；
(2) one section of rubber master batch and the component B containing white carbon black, carbon black, activator, anti-aging agent and softening agent are carried out the
Two are kneaded, and obtain two sections of rubber master batch；
(3) two sections of rubber master batch are subjected to third mixing with containing the component C of promotor and vulcanizing agent, obtain finished composition；
(4) finished composition is vulcanized；
The rubber matrix is the mixture of butadiene rubber and natural rubber；The rubber modifier is general formula (RO)3SiCH2CH2CH2OCH2The organo silane coupling agent that-X is indicated, RO is hydrolyzable groups, and X is epoxy groupR1With
R2It is each independently H, C1-5Straight chained alkyl or branched alkyl.
Vulcanized rubber of the invention is obtained by a kind of new mixing method, first by rubber matrix, initiator in this method
It mixes with rubber modifier to be prepared into matrix rubber master batch；Then white carbon black is added into matrix rubber master batch, carbon black, activator, prevents always
The components such as agent, softening agent are to be mixed with two sections of rubber master batch；Then vulcanizing agent, promotor is added in two sections of rubber master batch to be prepared into end
Refining glue finally carries out finished composition to vulcanize obtained vulcanized rubber.In processing technology of the invention, it can preferably play rubber and change
Property function served as bridge of the agent in rubber matrix and white carbon black, be conducive to dispersion of the white carbon black in rubber matrix, can be preferably
The intensity of the vulcanized rubber as made from further vulcanization is improved, vulcanized rubber rolling resistance is reduced, improves vulcanizate compound
Anti- flexibility.
The third aspect, the present invention provide the vulcanized rubber that the method as described in aforementioned second aspect is prepared.
Fourth aspect, the present invention provide application of the vulcanized rubber described in the aforementioned third aspect in tire sidewall.
Rubber composition of the invention has the advantages that high intensity, low-rolling-resistance, good dynamic flexing, Yi Jiyou
The vulcanized rubber that the composition is formed can be used in tire sidewall.
Specific embodiment
The endpoint of disclosed range and any value are not limited to the accurate range or value herein, these ranges or
Value should be understood as comprising the value close to these ranges or value.For numberical range, between the endpoint value of each range, respectively
It can be combined with each other between the endpoint value of a range and individual point value, and individually between point value and obtain one or more
New numberical range, these numberical ranges should be considered as specific open herein.
As previously mentioned, the first aspect of the present invention provides a kind of rubber composition for tire sidewall, the composition
In contain rubber matrix, initiator, rubber modifier, white carbon black, carbon black, activator, anti-aging agent, softening agent, promotor and sulphur
Agent, wherein the rubber matrix is the mixture of butadiene rubber and natural rubber；The rubber modifier is general formula (RO)3SiCH2CH2CH2OCH2The organo silane coupling agent that-X is indicated, RO is hydrolyzable groups, and X is epoxy groupR1With
R2It is each independently H, C1-5Straight chained alkyl or branched alkyl.
Rubber modifier of the invention enables to rubber matrix modified, to be conducive between rubber matrix and white carbon black
Interaction, be conducive to dispersion of the white carbon black in rubber matrix, can preferably improve as made from further vulcanizing
The intensity of vulcanized rubber reduces vulcanized rubber rolling resistance, improves the anti-flexibility of vulcanizate compound.
Preferably, in the organo silane coupling agent, RO is methoxyl group, ethyoxyl or acetoxyl group.
Under preferable case, in the organo silane coupling agent, R1And R2It is each independently H, methyl or ethyl.
Under preferable case, relative to the rubber matrix of 100 parts by weight, the content of natural rubber in the rubber matrix
For 40-60 parts by weight, the content of butadiene rubber is 40-60 parts by weight.
Preferably, the natural rubber is SMR-20.
Preferably, the cis-content in the butadiene rubber is 90-99 weight %.
Under preferable case, relative to the rubber matrix of 100 parts by weight, the content of the initiator is 0.1-0.8 weight
Part is measured, the content of the rubber modifier is 3-8 parts by weight, and the content of the white carbon black is 20-50 parts by weight, the carbon black
Content is 30-50 parts by weight, and the content of the activator is 5-10 parts by weight, and the content of the anti-aging agent is 1-3 parts by weight, institute
The content for stating softening agent is 5-15 parts by weight, and the content of the promotor is 1-5 parts by weight, and the content of the vulcanizing agent is 0.5-
4 parts by weight.
In the case of, according to the invention it is preferred to, the initiator is selected from cumyl peroxide, dibenzoyl peroxide, mistake
Aoxidize at least one of two (2,4 dichloro benzene formyls), diacetyl peroxide and dilauroyl peroxide.
In the case of, according to the invention it is preferred to, the white carbon black is silica；It is highly preferred that the nitrogen of the white carbon black is inhaled
Attached specific surface area is 10-200m2/g.For example, the white carbon black is 115GR (French Rhodia) and/or 165GR (France
Rhodia).
Preferably, the CTAB adsorption specific surface area of the carbon black is 10-600m2/g.For example, the carbon black is the (east N330
Qi Deli Chemical Industry Science Co., Ltd, tabernaemontanus bulrush city) and/or N550 (Dongguan City Qi Deli Chemical Industry Science Co., Ltd).
Preferably, the activator is the mixture of metal oxide and fatty acid.The metal oxide is preferably oxygen
Change zinc and/or magnesia；The fatty acid is preferably stearic acid.
Under preferable case, the anti-aging agent is in amines antioxidants, quinoline type antioxidant and benzimidazole anti-aging agent
It is at least one.For example, the anti-aging agent is antioxidant 4020.
Preferably, the softening agent is at least one in aromatic naphtha, paraffin oil, naphthenic oil, Petropols and polyethylene glycol
Kind.The aromatic naphtha for example can be aromatic naphtha TDAE V500.Preferably, the weight average molecular weight of the polyethylene glycol is in 3000-
In 5000 ranges.
Preferably, the promotor is sulfenamide type accelerators, thiazole accelerator, thuriam acceserator and guanidine
At least one of promotor.Preferably, the promotor is N tert butyl benzothiazole 2 sulfenamide (TBBS), hexichol
At least one of guanidine (diphenylguanidine) and tetramethylthiuram disulfide (TMTD).
Preferably, the vulcanizing agent is sulfur donor.The sulfur donor refers to the substance for being capable of providing sulphur.Institute
Stating sulphur includes at least one of insoluble sulfur, soluble sulfur and oil-filled sulphur.For example, the vulcanizing agent is common sulphur
Sulphur S, oil-filled insoluble sulfur IS etc..
As previously mentioned, the second aspect of the present invention provides a kind of method for preparing vulcanized rubber, this method comprises:
(1) the component A containing rubber matrix, initiator and rubber modifier is carried out first to be kneaded, obtains one section of rubber master batch；
(2) one section of rubber master batch and the component B containing white carbon black, carbon black, activator, anti-aging agent and softening agent are carried out the
Two are kneaded, and obtain two sections of rubber master batch；
(3) two sections of rubber master batch are subjected to third mixing with containing the component C of promotor and vulcanizing agent, obtain finished composition；
(4) finished composition is vulcanized；
The rubber matrix is the mixture of butadiene rubber and natural rubber；The rubber modifier is general formula (RO)3SiCH2CH2CH2OCH2The organo silane coupling agent that-X is indicated, RO is hydrolyzable groups, and X is epoxy groupR1With
R2It is each independently H, C1-5Straight chained alkyl or branched alkyl.
Component A, component B involved in second aspect of the present invention and component C are formed together in first aspect present invention
The rubber composition for tire sidewall, therefore, various substances involved in second aspect of the present invention with this hair
Same substance in bright first aspect has corresponding identical property, and in order to avoid repeating, the present invention is in second aspect to object
Certain features (such as optional type of substance etc.) of matter are not repeated to describe, and those skilled in the art should not be construed as to this hair
The limitation of bright second aspect.
The present invention is obtained using the component A containing rubber matrix, initiator and rubber modifier is first carried out the first mixing
Then one section of rubber master batch carries out the subsequent processing step of the present invention, intensity and rolling resistance of thus obtained vulcanized rubber etc. again
Performance is more excellent.
Under preferable case, in second aspect, in the organo silane coupling agent, RO is methoxyl group, ethyoxyl or second
Acyloxy.
Preferably, in second aspect, in the organo silane coupling agent, R1And R2Be each independently H, methyl or
Ethyl.
Under preferable case, in second aspect, relative to the rubber matrix of 100 parts by weight, in the rubber matrix
The dosage of natural rubber is 40-60 parts by weight, and the dosage of butadiene rubber is 40-60 parts by weight.
Under preferable case, in second aspect, the natural rubber is SMR-20.
Under preferable case, in second aspect, the cis-content in the butadiene rubber is 90-99 weight %.
Under preferable case, in second aspect, relative to the rubber matrix of 100 parts by weight, the use of the initiator
Amount is 0.1-0.8 parts by weight, and the dosage of the rubber modifier is 3-8 parts by weight, and the dosage of the white carbon black is 20-50 weight
Part, the dosage of the carbon black is 30-50 parts by weight, and the dosage of the activator is 5-10 parts by weight, the dosage of the anti-aging agent
For 1-3 parts by weight, the dosage of the softening agent is 5-15 parts by weight, and the dosage of the promotor is 1-5 parts by weight, the vulcanization
The dosage of agent is 0.5-4 parts by weight.
Under preferable case, in second aspect, it is 100-150 DEG C that the described first condition being kneaded, which includes: temperature, and the time is
3-7min.It is highly preferred that it is 110-130 DEG C that the described first condition being kneaded, which includes: temperature, time 4-6min.
Under preferable case, in second aspect, it is 100-170 DEG C that the described second condition being kneaded, which includes: temperature, and the time is
3-10min.It is highly preferred that it is 140-160 DEG C that the described second condition being kneaded, which includes: temperature, time 5-7min.
Under preferable case, in second aspect, the condition that the third is kneaded includes: that temperature is the time no more than 130 DEG C
For 5-7min.
Under preferable case, in second aspect, the condition of the vulcanization includes: that temperature is 150-170 DEG C, pressure 10-
20MPa, time 30-50min.
In the second aspect of the present invention, according to a kind of preferred embodiment, the described first condition packet being kneaded
Include: temperature is 110-130 DEG C, time 4-6min；It is 140-160 DEG C that described second condition being kneaded, which includes: temperature, and the time is
5-7min；The condition that the third is kneaded includes: that temperature is the time 5-7min no more than 130 DEG C；And the item of the vulcanization
Part includes: that temperature is 150-170 DEG C, pressure 10-20MPa, time 30-50min.It is prepared into using the preferred embodiment
The mechanical property of the vulcanized rubber arrived is more excellent (intensity improves, reduces heat), and the service life is longer for vulcanized rubber.
Method in order to specifically describe preparation vulcanized rubber of the invention, a kind of preferred specific embodiment party presented below
Formula is illustrated:
(1) rubber matrix is placed in mixer, revolving speed is 50~120rpm, and initial melting temperature is 70~90 DEG C, raw
Glue plasticates the time to plasticate under the conditions of 0.1~1min；It then will be in the component A introducing containing initiator and rubber modifier
It states and carries out the first mixing in mixer, obtain one section of rubber master batch；
(2) one section of rubber master batch is added with the component B containing white carbon black, carbon black, activator, anti-aging agent and softening agent close
Second is carried out in mill to be kneaded, and is discharged and is parked 3-5 hours, obtains two sections of rubber master batch；
(3) revolving speed that mixer is arranged is 50~100rpm, and initial melting temperature is 25~50 DEG C, by two sections of rubber master batch
It plasticates after 0.5~1.5min, is added and carries out third mixing containing the component C of promotor and vulcanizing agent, obtain finished composition；
(4) finished composition is put into vulcanizing press and is vulcanized；
The rubber matrix is the mixture of butadiene rubber and natural rubber；The rubber modifier is general formula (RO)3SiCH2CH2CH2OCH2The organo silane coupling agent that-X is indicated, RO is hydrolyzable groups, and X is epoxy groupR1With
R2It is each independently H, C1-5Straight chained alkyl or branched alkyl.
Pressure used is gauge in the present invention.
As previously mentioned, the third aspect of the present invention provides the vulcanization that the method as described in aforementioned second aspect is prepared
Rubber.
As previously mentioned, the fourth aspect of the present invention provides vulcanized rubber described in the aforementioned third aspect in tire sidewall
Application.
It below will the present invention will be described in detail by example.
In case of no particular description, extensive stock used below is all from commercially available.
The equipment situation of following embodiment and comparative example preparation vulcanized rubber is shown in Table 1.
The test equipment of vulcanized rubber made from embodiment and comparative example is shown in Table 2, and test condition is shown in Table 3.
The chemical reagent that embodiment and comparative example uses is commercially available product, specific as follows:
Natural rubber: SMR-20, Qingdao Sai Ruite international logistics Co., Ltd；
Butadiene rubber: BR9000, Yanshan Petrochemical product (wherein, cis-content is 97.8 mass %)；
White carbon black: 165GR, French Rhodia, N2 adsorption specific surface area are 170m2/g；
Carbon black: N330, CTAB adsorption specific surface area are 75m2/kg；N550, CTAB adsorption specific surface area are 103m2/ kg, east
Qi Deli Chemical Industry Science Co., Ltd, tabernaemontanus bulrush city；
Initiator: cumyl peroxide (DCP), dibenzoyl peroxide (BPO) Hai Jing Chemical Co., Ltd., analysis
It is pure；
Rubber modifier: γ-(2,3- the third oxygen of epoxy) propyl-triethoxysilicane (wherein, RO CH3CH2O-, R1And R2
It is H) (uncommon love (Shanghai) the chemical conversion industry Development Co., Ltd of ladder), γ-(2,3- the third oxygen of epoxy) propyl trimethoxy silicane (its
In, RO CH3O-, R1And R2It is H) (uncommon love (Shanghai) the chemical conversion industry Development Co., Ltd of ladder), γ-(2,3- the third oxygen of epoxy)
Propyl triacetoxysilane (wherein, RO CH3COO-, R1And R2It is H) (Di Ke Chemical Co., Ltd.), double-[γ-(three
Ethyoxyl silicon) propyl] tetrasulfide (Si69) (Hangzhou Jesse blocks Chemical Co., Ltd.)；
Softening agent: environment-friendly aromatic oil TDAE V500 (abbreviation TDAE), Xin Dayang (Ningbo) Co., Ltd；
Activator: zinc oxide, stearic acid, Weifang Hengfeng Chemical Co., Ltd.；
Anti-aging agent: the holy chemistry science and technology difficult to understand in N- (1,3- dimethylbutyl)-N '-diphenyl-para-phenylene diamine (antioxidant 4020) Jiangsu
Co., Ltd；
Vulcanizing agent: sulphur, Weifang Zhong Heng Chemical Co., Ltd.；
Promotor: N tert butyl benzothiazole 2 sulfenamide (TBBS), diphenylguanidine (diphenylguanidine), tetramethyl
Thiuram (TMTD), Shanghai Yong Yan Chemical Industry Science Co., Ltd.
Amounts of components in following embodiment and comparative example is parts by weight, and every parts by weight represent 1g.
Embodiment is for illustrating rubber composition of the invention, vulcanized rubber and preparation method thereof.
Table 1
| Serial number | Device name | Model | Manufacturer |
| 1 | Mixer | BR1600 | Farrel Corp. (US) 25 Main Street, Ansonia, CT 06401, U.S.A., the U.S. |
| 2 | Vulcanizing press | XLB-D400*400*2 | The first rubber machinery plant of Shanghai |
Table 2
Table 3
Embodiment 1
Building rubber compound composition formula: 60 parts by weight of natural rubber, 40 parts by weight of butadiene rubber, γ-(the third oxygen of 2,3- epoxy) third
3 parts by weight of ethyl triethoxy silicane alkane (rubber modifier), 0.1 parts by weight of DCP (initiator), 20 parts by weight of white carbon black, carbon black
It is 20 parts by weight of N550,30 parts by weight of carbon black N330,15 parts by weight of TDAE (softening agent), 4 parts by weight of zinc oxide (activator), hard
1 parts by weight of resin acid (activator), 0.5 parts by weight of sulphur (vulcanizing agent), 4 parts by weight of TBBS (promotor), diphenylguanidine (promotor)
1 parts by weight, 1 parts by weight of antioxidant 4020 (anti-aging agent).
The preparation process of vulcanized rubber:
(1) rubber matrix, initiator, rubber modifier are carried out first to be kneaded, obtains one section of rubber master batch；Specifically, by day
Right rubber, butadiene rubber are added in mixer, and setting revolving speed is 80rpm, and initial melting temperature is 80 DEG C, and raw rubber time of plasticating is
0.5min；Initiator, rubber modifier are added in above-mentioned mixer and are kneaded, melting temperature is 110 DEG C, and mixing time is
6min obtains one section of rubber master batch；
(2) one section of rubber master batch and white carbon black, activator, anti-aging agent, softening agent and carbon black are carried out second to be kneaded, is obtained
To two sections of rubber master batch；Specifically, white carbon black, carbon black, TDAE, zinc oxide, stearic acid, antioxidant 4020 are added in mixer, with
One section of rubber master batch carries out second and is kneaded, and mixing time 7min, dump temperature is 140 DEG C, discharges and parks 4 hours, obtains
Two sections of rubber master batch；
(3) two sections of rubber master batch and promotor and vulcanizing agent are subjected to third mixing, obtain finished composition；Specifically, it is arranged
The revolving speed of mixer is 80rpm, and initial melting temperature is 40 DEG C, and two sections of rubber master batch are plasticated after 1min, and addition vulcanizing agent promotees
Third mixing is carried out into agent, melting temperature is 105 DEG C, mixing time 5min, and discharging obtains finished composition；
(4) finished composition is put into vulcanizing press and is vulcanized, curing temperature is 150 DEG C, sulfide stress is
Cured rubber samples S1 is made in 20MPa, vulcanization time 50min.
Cured rubber samples S1 is tested for the property, the results are shown in Table 4.
Embodiment 2
Building rubber compound composition formula: 40 parts by weight of natural rubber, 60 parts by weight of butadiene rubber, γ-(the third oxygen of 2,3- epoxy) third
8 parts by weight of base trimethoxy silane (rubber modifier), 0.8 parts by weight of BPO (initiator), 50 parts by weight of white carbon black, carbon black
30 parts by weight of N550,5 parts by weight of TDAE (softening agent), 4 parts by weight of zinc oxide (activator), 3 weight of stearic acid (activator)
Part, 4 parts by weight of sulphur (vulcanizing agent), 1 parts by weight of TMTD (promotor), 2 parts by weight of antioxidant 4020 (anti-aging agent).
The preparation process of vulcanized rubber:
(1) rubber matrix, initiator and rubber modifier are carried out first to be kneaded, obtains one section of rubber master batch；Specifically, by day
Right rubber, butadiene rubber are added in mixer, and setting revolving speed is 80rpm, and initial melting temperature is 80 DEG C, and raw rubber time of plasticating is
0.5min；Initiator and rubber modifier are added in above-mentioned mixer and are kneaded, melting temperature is 120 DEG C, and mixing time is
5min obtains one section of rubber master batch；
(2) one section of rubber master batch and white carbon black, activator, anti-aging agent, softening agent and carbon black are carried out second to be kneaded, is obtained
To two sections of rubber master batch；Specifically, white carbon black, carbon black, TDAE, zinc oxide, stearic acid, antioxidant 4020 are added in mixer, with
One section of rubber master batch carries out second and is kneaded, and mixing time 6min, dump temperature is 150 DEG C, discharges and parks 4 hours, obtains
Two sections of rubber master batch；
(3) two sections of rubber master batch and promotor and vulcanizing agent are subjected to third mixing, obtain finished composition；Specifically, it is arranged
The revolving speed of mixer is 80rpm, and initial melting temperature is 40 DEG C, and two sections of rubber master batch are plasticated after 1min, and addition vulcanizing agent promotees
Third mixing is carried out into agent, melting temperature is 110 DEG C, mixing time 7min, and discharging obtains finished composition；
(4) finished composition is put into vulcanizing press and is vulcanized, curing temperature is 170 DEG C, sulfide stress is
Cured rubber samples S2 is made in 10MPa, vulcanization time 30min.
Cured rubber samples S2 is tested for the property, the results are shown in Table 4.
Embodiment 3
Building rubber compound composition formula: 50 parts by weight of natural rubber, 50 parts by weight of butadiene rubber, γ-(the third oxygen of 2,3- epoxy) third
5 parts by weight of base triacetoxysilane (rubber modifier), 0.5 parts by weight of DCP (initiator), 35 parts by weight of white carbon black, carbon black
40 parts by weight of N330,10 parts by weight of TDAE (softening agent), 3 parts by weight of zinc oxide (activator), 7 weight of stearic acid (activator)
Part, 2 parts by weight of sulphur (vulcanizing agent), 1 parts by weight of TBBS (promotor), 2 parts by weight of diphenylguanidine (promotor), antioxidant 4020
(anti-aging agent) 3 parts by weight.
The preparation process of vulcanized rubber:
(1) rubber matrix, initiator and rubber modifier are carried out first to be kneaded, obtains one section of rubber master batch；Specifically, by day
Right rubber, butadiene rubber are added in mixer, and setting revolving speed is 80rpm, and initial melting temperature is 80 DEG C, and raw rubber time of plasticating is
0.5min；Initiator and rubber modifier are added in above-mentioned mixer and are kneaded, melting temperature is 130 DEG C, and mixing time is
4min obtains one section of rubber master batch；
(2) one section of rubber master batch and white carbon black, activator, anti-aging agent, softening agent and carbon black are carried out second to be kneaded, is obtained
To two sections of rubber master batch；Specifically, white carbon black, carbon black, TDAE, zinc oxide, stearic acid, antioxidant 4020 are added in mixer, with
One section of rubber master batch carries out second and is kneaded, and mixing time 5min, dump temperature is 160 DEG C, discharges and parks 4 hours, obtains
Two sections of rubber master batch；
(3) two sections of rubber master batch and promotor and vulcanizing agent are subjected to third mixing, obtain finished composition；Specifically, it is arranged
The revolving speed of mixer is 80rpm, and initial melting temperature is 40 DEG C, and two sections of rubber master batch are plasticated after 1min, and addition vulcanizing agent promotees
Third mixing is carried out into agent, melting temperature is 120 DEG C, mixing time 6min, and discharging obtains finished composition；
(4) finished composition is put into vulcanizing press and is vulcanized, curing temperature is 160 DEG C, sulfide stress is
Cured rubber samples S3 is made in 15MPa, vulcanization time 40min.
Cured rubber samples S3 is tested for the property, the results are shown in Table 4.
Embodiment 4
The present embodiment uses building rubber compound composition formula similar to Example 3, the difference is that γ-in the present embodiment (2,
The third oxygen of 3- epoxy) propyl triacetoxysilane dosage be 10 parts by weight.
The preparation process of vulcanized rubber is in the same manner as in Example 3.
Cured rubber samples S4 is made.
Cured rubber samples S4 is tested for the property, the results are shown in Table 4.
Embodiment 5
The building rubber compound composition formula of the present embodiment is in the same manner as in Example 3, and uses method system similar to Example 3
Standby vulcanized rubber, the preparation process of vulcanized rubber is similar to embodiment 3, unlike:
During preparing one section of rubber master batch, the first temperature being kneaded is 140 DEG C, time 3min；
During preparing two sections of rubber master batch, the second temperature being kneaded is 100 DEG C, time 8min；
During preparing finished composition, the time that third is kneaded is 6min, and dump temperature is 120 DEG C.
Cured rubber samples S5 is made.
Cured rubber samples S5 is tested for the property, the results are shown in Table 4.
Comparative example 1
The formula of the rubber composition of this comparative example is similar to embodiment 3, the difference is that with identical in this comparative example
Rubber modifier in the Si69 alternative embodiment 3 of weight, specifically:
Building rubber compound composition formula: 50 parts by weight of natural rubber, 50 parts by weight of butadiene rubber, 5 weight of Si69 (rubber modifier)
Measure part, 0.5 parts by weight of DCP (initiator), 35 parts by weight of white carbon black, 40 parts by weight of carbon black N330,10 weight of TDAE (softening agent)
Part, 3 parts by weight of zinc oxide (activator), 7 parts by weight of stearic acid (activator), 2 parts by weight of sulphur (vulcanizing agent), TBBS (promote
Agent) 1 parts by weight, 2 parts by weight of diphenylguanidine (promotor), 3 parts by weight of antioxidant 4020 (anti-aging agent).
The preparation process of vulcanized rubber is in the same manner as in Example 3.Cured rubber samples DS1 is made.
Cured rubber samples DS1 is tested for the property, the results are shown in Table 4.
Table 4
| Sample number into spectrum | S1 | S2 | S3 | S4 | S5 | DS1 |
| Breaking strength (MPa) | 21.2 | 21.4 | 21.3 | 20.1 | 18.6 | 16.4 |
| Compression heating (DEG C) | 24.8 | 24.6 | 25.0 | 25.9 | 26.9 | 32.0 |
| Fatigue life (secondary) | 19230 | 19478 | 19263 | 17923 | 15769 | 12301 |
As can be seen from Table 4, rubber composition of the invention can achieve each component of rubber composition in rubber
Better dispersibility in matrix improves intensity, reduction heat, improves and move so that further manufactured vulcanized rubber be enable to have
The excellent comprehensive performance such as state fatigability.
The preferred embodiment of the present invention has been described above in detail, and still, the present invention is not limited thereto.In skill of the invention
In art conception range, can with various simple variants of the technical solution of the present invention are made, including each technical characteristic with it is any its
Its suitable method is combined, and it should also be regarded as the disclosure of the present invention for these simple variants and combination, is belonged to
Protection scope of the present invention.
Claims (14)
1. a kind of rubber composition for tire sidewall, in the composition containing rubber matrix, initiator, rubber modifier,
White carbon black, carbon black, activator, anti-aging agent, softening agent, promotor and vulcanizing agent, wherein the rubber matrix be butadiene rubber and
The mixture of natural rubber；The rubber modifier is general formula (RO)3SiCH2CH2CH2OCH2The organosilan coupling that-X is indicated
Agent, RO are hydrolyzable groups, and X is epoxy groupR1And R2It is each independently H, C1-5Straight chained alkyl or branch
Alkyl.
2. composition according to claim 1, wherein in the organo silane coupling agent, RO is methoxyl group, ethyoxyl
Or acetoxyl group；Preferably,
In the organo silane coupling agent, R1And R2It is each independently H, methyl or ethyl.
3. composition according to claim 1 or 2, wherein relative to the rubber matrix of 100 parts by weight, the rubber
The content of natural rubber is 40-60 parts by weight in matrix body, and the content of butadiene rubber is 40-60 parts by weight.
4. composition according to claim 3, wherein the natural rubber is SMR-20；Preferably,
Cis-content in the butadiene rubber is 90-99 weight %.
5. composition described in any one of -4 according to claim 1, wherein the rubber-based relative to 100 parts by weight
Body, the content of the initiator are 0.1-0.8 parts by weight, and the content of the rubber modifier is 3-8 parts by weight, the white carbon black
Content be 20-50 parts by weight, the content of the carbon black is 30-50 parts by weight, and the content of the activator is 5-10 parts by weight,
The content of the anti-aging agent is 1-3 parts by weight, and the content of the softening agent is 5-15 parts by weight, and the content of the promotor is 1-
5 parts by weight, the content of the vulcanizing agent are 0.5-4 parts by weight.
6. composition according to claim 1, wherein the initiator is selected from cumyl peroxide, diphenyl peroxide
At least one of formyl, peroxidating two (2,4 dichloro benzene formyl), diacetyl peroxide and dilauroyl peroxide；It is preferred that
Ground,
The N2 adsorption specific surface area of the white carbon black is 10-200m2/g；Preferably,
The CTAB adsorption specific surface area of the carbon black is 10-600m2/g；Preferably,
The activator is the mixture of metal oxide and fatty acid.
7. composition according to claim 1, wherein the anti-aging agent is amines antioxidants, quinoline type antioxidant and benzene
And at least one of imidazoles anti-aging agent；Preferably,
The softening agent is at least one of aromatic naphtha, paraffin oil, naphthenic oil, Petropols and polyethylene glycol；Preferably,
The promotor is in sulfenamide type accelerators, thiazole accelerator, thuriam acceserator and guanidines
It is at least one；Preferably,
The vulcanizing agent is sulfur donor.
8. a kind of method for preparing vulcanized rubber, this method comprises:
(1) the component A containing rubber matrix, initiator and rubber modifier is carried out first to be kneaded, obtains one section of rubber master batch；
(2) one section of rubber master batch second is carried out with the component B containing white carbon black, carbon black, activator, anti-aging agent and softening agent to mix
Refining, obtains two sections of rubber master batch；
(3) two sections of rubber master batch are subjected to third mixing with containing the component C of promotor and vulcanizing agent, obtain finished composition；
(4) finished composition is vulcanized；
The rubber matrix is the mixture of butadiene rubber and natural rubber；The rubber modifier is general formula (RO)3SiCH2CH2CH2OCH2The organo silane coupling agent that-X is indicated, RO is hydrolyzable groups, and X is epoxy groupR1With
R2It is each independently H, C1-5Straight chained alkyl or branched alkyl；Preferably,
In the organo silane coupling agent, RO is methoxyl group, ethyoxyl or acetoxyl group, it is preferable that
In the organo silane coupling agent, R1And R2It is each independently H, methyl or ethyl.
9. according to the method described in claim 8, wherein, relative to the rubber matrix of 100 parts by weight, the rubber matrix
The content of middle natural rubber is 40-60 parts by weight, and the content of butadiene rubber is 40-60 parts by weight.
10. according to the method described in claim 9, wherein, the natural rubber is SMR-20；Preferably,
Cis-content in the butadiene rubber is 90-99 weight %.
11. the method according to any one of claim 8-10, wherein the rubber-based relative to 100 parts by weight
Body, the dosage of the initiator are 0.1-0.8 parts by weight, and the dosage of the rubber modifier is 3-8 parts by weight, the white carbon black
Dosage be 20-50 parts by weight, the dosage of the carbon black is 30-50 parts by weight, and the dosage of the activator is 5-10 parts by weight,
The dosage of the anti-aging agent is 1-3 parts by weight, and the dosage of the softening agent is 5-15 parts by weight, and the dosage of the promotor is 1-
5 parts by weight, the dosage of the vulcanizing agent are 0.5-4 parts by weight.
12. the method according to any one of claim 8-10, wherein the described first condition being kneaded includes: temperature
It is 100-150 DEG C, time 3-7min；Preferably, it is 110-130 DEG C that the described first condition being kneaded, which includes: temperature, and the time is
4-6min；
It is 100-170 DEG C that described second condition being kneaded, which includes: temperature, time 3-10min；Preferably, it described second is kneaded
Condition include: temperature be 140-160 DEG C, time 5-7min；
The condition that the third is kneaded includes: that temperature is the time 5-7min no more than 130 DEG C；Preferably,
The condition of the vulcanization includes: that temperature is 150-170 DEG C, pressure 10-20MPa, time 30-50min.
13. the vulcanized rubber that the method as described in any one of claim 8-12 is prepared.
14. application of the vulcanized rubber described in claim 13 in tire sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711353811.XA CN109929149B (en) | 2017-12-15 | 2017-12-15 | Rubber composition for tire side wall of tire, vulcanized rubber, and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711353811.XA CN109929149B (en) | 2017-12-15 | 2017-12-15 | Rubber composition for tire side wall of tire, vulcanized rubber, and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109929149A true CN109929149A (en) | 2019-06-25 |
| CN109929149B CN109929149B (en) | 2021-08-03 |
Family
ID=66980504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711353811.XA Active CN109929149B (en) | 2017-12-15 | 2017-12-15 | Rubber composition for tire side wall of tire, vulcanized rubber, and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109929149B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110551238A (en) * | 2018-06-01 | 2019-12-10 | 中国石油化工股份有限公司 | Modified styrene-butadiene rubber and preparation method thereof, rubber composition, vulcanized rubber and preparation method and application thereof |
| CN112239572A (en) * | 2019-07-19 | 2021-01-19 | 中国石油化工股份有限公司 | Rubber composition for shoe sole, vulcanized rubber, and preparation method and application thereof |
| CN114149624A (en) * | 2020-09-07 | 2022-03-08 | 中国石油化工股份有限公司 | Rubber composition for light-color tire sidewall and application thereof, vulcanized rubber and preparation method and application thereof |
| CN116144084A (en) * | 2023-01-12 | 2023-05-23 | 中策橡胶集团股份有限公司 | Low-heat-generation tire sidewall rubber composition, mixing method thereof and low-heat-generation tire |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104629126A (en) * | 2013-11-12 | 2015-05-20 | 中国石油化工股份有限公司 | Rubber composition, vulcanized rubber and application of vulcanized rubber |
| CN106608990A (en) * | 2015-10-22 | 2017-05-03 | 中国石油化工股份有限公司 | Rubber composition and preparation method thereof, and vulcanized rubber |
| CN106700158A (en) * | 2015-11-13 | 2017-05-24 | 中国石油化工股份有限公司 | High-strength rubber composition, vulcanized rubber and preparation method and application of vulcanized rubber |
-
2017
- 2017-12-15 CN CN201711353811.XA patent/CN109929149B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104629126A (en) * | 2013-11-12 | 2015-05-20 | 中国石油化工股份有限公司 | Rubber composition, vulcanized rubber and application of vulcanized rubber |
| CN106608990A (en) * | 2015-10-22 | 2017-05-03 | 中国石油化工股份有限公司 | Rubber composition and preparation method thereof, and vulcanized rubber |
| CN106700158A (en) * | 2015-11-13 | 2017-05-24 | 中国石油化工股份有限公司 | High-strength rubber composition, vulcanized rubber and preparation method and application of vulcanized rubber |
Non-Patent Citations (1)
| Title |
|---|
| 韩长日等主编: "《橡塑助剂生产工艺与技术》", 30 November 2015, 科学技术文献出版社 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110551238A (en) * | 2018-06-01 | 2019-12-10 | 中国石油化工股份有限公司 | Modified styrene-butadiene rubber and preparation method thereof, rubber composition, vulcanized rubber and preparation method and application thereof |
| CN112239572A (en) * | 2019-07-19 | 2021-01-19 | 中国石油化工股份有限公司 | Rubber composition for shoe sole, vulcanized rubber, and preparation method and application thereof |
| CN112239572B (en) * | 2019-07-19 | 2022-08-19 | 中国石油化工股份有限公司 | Rubber composition for shoe sole, vulcanized rubber, and preparation method and application thereof |
| CN114149624A (en) * | 2020-09-07 | 2022-03-08 | 中国石油化工股份有限公司 | Rubber composition for light-color tire sidewall and application thereof, vulcanized rubber and preparation method and application thereof |
| CN114149624B (en) * | 2020-09-07 | 2023-08-15 | 中国石油化工股份有限公司 | Rubber composition for light tire sidewall and application thereof, vulcanized rubber and preparation method and application thereof |
| CN116144084A (en) * | 2023-01-12 | 2023-05-23 | 中策橡胶集团股份有限公司 | Low-heat-generation tire sidewall rubber composition, mixing method thereof and low-heat-generation tire |
| CN116144084B (en) * | 2023-01-12 | 2024-03-22 | 中策橡胶集团股份有限公司 | Low-heat-generation tire sidewall rubber composition, mixing method thereof and low-heat-generation tire |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109929149B (en) | 2021-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3205514B1 (en) | Rubber composition and tire with tread for low temperature performance and wet traction | |
| US9441098B1 (en) | Tire with tread for low temperature performance and wet traction | |
| CN109384965A (en) | For the rubber composition on tire sidewall and vulcanized rubber and its preparation method and application | |
| CN104130461B (en) | Rubber composition for tire and pneumatic tire | |
| CN105324429B (en) | Rubber composition for tire and pneumatic tire | |
| CN109929149A (en) | For the rubber composition on tire sidewall and vulcanized rubber and its preparation method and application | |
| EP1967387B1 (en) | Rubber composition and tire sidewall with such a composition comprising emulsion styrene/butadiene rubber, cis1,4-polyisoprene rubber and cis 1,4-polybutadiene rubber | |
| EP2022823B1 (en) | Rubber containing hydrophilic sorbitan monostearate and tackifying resin and tire with sidewall thereof | |
| EP2730432A1 (en) | Rubber composition and pneumatic tire | |
| CN106608990A (en) | Rubber composition and preparation method thereof, and vulcanized rubber | |
| EP3421535A1 (en) | Rubber composition and pneumatic tire | |
| EP3034328A1 (en) | Rubber composition containing two differentely functionalised sbr | |
| CN107641228A (en) | The application of organosilan and rubber composition and vulcanization rubber and preparation method thereof | |
| CN109929160A (en) | The application of organo silane coupling agent and rubber composition and vulcanized rubber and its preparation method and application | |
| CN109384966A (en) | For the rubber composition on tire sidewall and vulcanized rubber and its preparation method and application | |
| CN109929159A (en) | For the rubber composition of tire tread and vulcanized rubber and its preparation method and application | |
| CN109384964A (en) | For the rubber composition on tire sidewall and vulcanized rubber and its preparation method and application | |
| CN107641219B (en) | Use of organosilanes and rubber compositions and vulcanizates and process for their preparation | |
| EP3345960B1 (en) | Masterbatch preparation of silica rich rubber composition, rubber composition and tire with component | |
| CN108003408B (en) | Vulcanized rubber and preparation method and application thereof | |
| CN103965528B (en) | Rubber composition for tire and pneumatic tire | |
| US20180327573A1 (en) | Rubber with silica and triethanolamine and tire with component | |
| EP3418073B1 (en) | Rubber composition containing styrene/butadiene elastomer and silica reinforcement and tire | |
| CN109929148A (en) | For the rubber composition on tire sidewall and vulcanized rubber and its preparation method and application | |
| CN105367850A (en) | Tire and method for manufacturing tire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |