CN107825738B - Chopped carbon fiber enhancement engineering retreads tyre surface adhesive process - Google Patents
Chopped carbon fiber enhancement engineering retreads tyre surface adhesive process Download PDFInfo
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- CN107825738B CN107825738B CN201711118623.9A CN201711118623A CN107825738B CN 107825738 B CN107825738 B CN 107825738B CN 201711118623 A CN201711118623 A CN 201711118623A CN 107825738 B CN107825738 B CN 107825738B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/52—Unvulcanised treads, e.g. on used tyres; Retreading
- B29D30/54—Retreading
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
- B60C1/0016—Compositions of the tread
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Tires In General (AREA)
Abstract
Chopped carbon fiber enhancement engineering retreads tyre surface adhesive process.Existing engineering machinery vehicle retreads often occur collapsing use up block, easily by puncture and abrasion it is fast the problems such as, cause the service life of engineering machinery retreads low.Chopped carbon fiber enhancement engineering retreads tyre surface adhesive process of the present invention is realized by following steps: carbon fiber is impregnated with the toluene solution of 5% poly- methyl diphenylene diisocyanate, the dry 1min under 200 °C, coating is carried out with 10% rubber paste again, and the dry 2min under 160 °C；The 4min that plasticates is added in mixer in raw rubber matrix；Tread-rubber mixing process: being added chopped carbon fiber on mixer and its compounding agent is kneaded；When temperature after mixing process is down to about 60 °C, roll flakiness；Then vulcanize.The present invention can be improved the adhesion strength of chopped carbon fiber and rubber matrix, extend retreads service life.
Description
Technical field:
The present invention relates to a kind of chopped carbon fiber enhancement engineering retreads tyre surface adhesive process.
Background technique:
Off-the-road tyre usually works in harsh environments, for example, Uneven road it is smooth and have sharp crushed stone,
The sundries such as rock, nail and cullet, are impacted by hard object when tire working big, and are often worked continuously round the clock.In addition, each
Kind engineering machinery vehicle is typically all open work, and winter or summer difference variation is big, and off-the-road tyre will bear wider temperature
Variation range, and exposed to the sun and rain by wind.These handling characteristics of off-the-road tyre, it is desirable that tire tread glue sizing material needs to have
There are cut resistant, endurance, the excellent performances such as wear-resistant, hardness is high, deformation is small, heat is low.In recent years, China's off-the-road tyre
It is extremely rapid to renovate industry development, glue formula and selection are former but the design of domestic many off-the-road tyre renovations factory recaps
Tire used place situation is not fully considered when material, such as the engineering machinery vehicle to work in balcony stone ore or iron ore turns over
New tire, often occur collapsing in operation process use up block, easily by puncture and abrasion it is fast the problems such as, cause engineering machinery renovation wheel
The service life of tire is low, and the price of off-the-road tyre extends its service life to engineering truck at thousands of or even tens of thousands of yuans
Economy have a direct impact.In off-the-road tyre use process, anti-puncture performance, anti-collapse use up fast performance and wear-resisting
Performance is its critically important performance indicator, therefore in order to improve the resistance to puncture of engineering machinery retreads, wearability, resist to collapse and use up
It block and improves service life, using chopped carbon fiber material as reinforcement, engineering machinery retreads tread-rubber material conduct
Matrix adds the carbon fiber of suitable length and appropriate number in retreads tread rubber, studies carbon fiber boundary in conjunction with rubber
Face Mechanism of characters, and by means such as performance tests, study the cut resistant of engineering machinery retreads tyre surface after fibre reinforced,
It is anti-to collapse the performances such as colored and wear-resisting.
Carbon fiber has high ratio modulus, high specific strength, high temperature resistant, corrosion-resistant, resistance to tired as a kind of high performance fibre material
A series of excellent properties such as labor, anti-radiation, conductive, heat transfer, damping, noise reduction, occupy more in the reinforcement of advanced composite material
Come more important position, is known as 21 century most vital new material.In recent years, fibre reinforced high-performance rubber base
Composite material is developed into one of research hotspot, states according to documents and materials, due to the introducing of carbon fiber, makes the resistance to of rubber product
Hot, wearability, resilience, electric conductivity and other mechanical properties are all improved, fibre reinforced rubber composite material
Performance is significantly better than rubber product.Rubber is that cohesive energy is minimum in three big synthetic materials (rubber, plastics and fiber), Young's modulus
Its many performance can be improved with carbon black mixing in minimum macromolecular elastomer, and fibre reinforced rubber composite material is rigid carbon
The complex of fiber-reinforced elastonieric rubber its mechanical property not only can be improved after fibre reinforced, but also assigns its conduction, leads
The characteristics such as hot and wear-resistant.During preparing fibre reinforced rubber composite material, most important problem is to solve two-phase
Between bonding, the entirety for bearing external force can be formed, therefore during preparing carbon fiber compound tread-rubber, carbon fiber
The technical issues of dimension is uniformly mixed with rubber, and two-phase tight bond is firstly the need of breaking through.
Summary of the invention:
The object of the present invention is to provide a kind of chopped carbon fiber enhancement engineering retreads tyre surface adhesive process.
Above-mentioned purpose is realized by following technical scheme:
A kind of chopped carbon fiber enhancement engineering retreads tyre surface adhesive process, the renovation technology pass through following steps reality
It is existing:
Step 1: chopped carbon fiber is surface-treated；
Carbon fiber is impregnated with the toluene solution of 5% poly- methyl diphenylene diisocyanate, the dry 1min at 200 DEG C, then
Coating is carried out with 10% rubber paste, and the dry 2min at 160 DEG C；Min indicates chronomere, minute；
The process Step 2: tread-rubber matrix is plasticated:
The 4min that plasticates is added in mixer in tread-rubber matrix；Min indicates chronomere, minute；
Step 3: tread-rubber matrix mixing process:
110 ± 1 DEG C at a temperature of, rotor speed is to plasticate place on 6 cun of double roller mixers of 40r/min in step 2
Sequentially added in tread-rubber matrix after reason chopped carbon fiber, tackifier and compounding agent, operation oil and vulcanizing agent after be kneaded
15min, middle chopped carbon fiber to be mixed are homogeneously dispersed in tread-rubber matrix, obtain chopped carbon fiber and tread-rubber base
The multiphase co-mixing system of bluk recombination；R indicates that revolution, min indicate chronomere, minute；
Step 4: chopped carbon fiber and the compound multiphase co-mixing system of tread-rubber matrix after step 3 mixing process
Temperature when being down to about 60 DEG C, calendering formation；
Step 5: then bottom sheet vulcanizes 20min on 25t electrothermal plate vulcanizer；Wherein, curing temperature is 140 DEG C, sulphur
Change pressure is 3.5MPa, and case depth is to guarantee to reach sulfurizing point in the middle part of tyre surface；T indicates the unit of weight, ton；MPa is indicated
The unit of pressure, megapascal；Min indicates the unit of time, minute；
Step 6: punching；So far, the engineering retreads tread rubber process of chopped carbon fiber enhancing is completed, is formed and is chopped
The engineering retreads tread rubber of fibre reinforced.
The utility model has the advantages that
Chopped carbon fiber of the present invention is impregnated with the toluene solution of 5% poly- methyl diphenylene diisocyanate, is done at 200 DEG C
Dry 1min, then coating is carried out with 10% rubber paste, and the dry 2min at 160 DEG C.Compared with other binding systems, do not go out
Now apparent yield point, bonding effect are best.Chopped carbon fiber is surface-treated by this, and according to chopped carbon fiber
The method that reinforcement and the characteristic of tread-rubber matrix design suitable binding system, can be improved chopped carbon fiber and tyre surface rubber
The adhesion strength of matrix body enhances the reactivity on chopped carbon fiber surface and tread-rubber matrix surface, changes the carbon fiber that is chopped
The physical and chemical state in dimension table face adjusts the interface compatibility of composite material.
The carbon fiber that suitable length and proper content is added can play effective reinforcing effect to tread-rubber matrix, mention
The high tensile strength of material, tearing strength, hardness, elasticity modulus and wear-resisting property, meanwhile, it also limits to a certain extent
The deformation of tread-rubber matrix.High intensity, high-modulus, low elongation carbon fiber the tread-rubber after vulcanization is played really
Reinforcing effect.This is because distribution of the carbon fiber in rubber is this random distribution, mutually in random phase interconnection knot state
The carbon fiber for taking knot forms skeleton in rubber, hinders the movement of its adjacent polymer chains, with carbon fiber length and content
It improves, takes number of network nodes increase between fiber, fiber is caused to form reticular structure in rubber matrix.This reticular structure
In the presence of playing good inhibition to the movement of adjacent polymer chains.Carbon fiber is the material of a kind of high-modulus, low elongation
Material, when sample stress, the matrix mainly around carbon fiber is deformed, and generates two strain amplifications at the both ends of carbon fiber
Stress concentration region is caused in carbon fiber end in region.When carbon fiber dosage is lower, this stress concentration region density is relatively dredged,
It is small to cause a possibility that destroying.When carbon fiber it is Nian Jie with matrix preferably without be displaced when, high-intensitive carbon fiber can be held
By certain load, the deformation of matrix is limited to a certain extent.When the synergistic effect counteracting between carbon fiber is even more than
When the destructive power of stress concentration region, the tensile strength and tearing strength of composite material can be improved, and elasticity modulus and hardness are then bright
Aobvious to increase, elongation also declines therewith.With continuing growing for carbon fiber length and dosage, the stress concentration region of carbon fiber end
Density, the overlapping of region property, thus, it is easy to cause at these positions to destroy, causes tensile strength to decline, but elasticity modulus
It is then in rising trend always with hardness, and be multiplied.Although carbon fiber by broken in violent mixing, fiber shortens,
It is roughening, but metallographic microscope observation indicate that, carbon fiber substantially maintains the micro-phase action of fiber, therefore
It can play the role of enhancing tread-rubber matrix.Research achievement has carried out carbon in Harbin Hui Liang automobile tire retreading Co., Ltd
The trial-production of fiber reinforcement engineering machinery retreads produces, and is used on the spot in mine region, through feeding back, fibre reinforced
Its anti-collapses of engineering machinery retreads afterwards uses up block, resistance to puncture and the more common retreads of wearability and is significantly improved,
Retreads service life is greatly promoted.
Specific embodiment:
Specific embodiment 1:
The chopped carbon fiber enhancement engineering retreads tyre surface adhesive process of present embodiment, comprising the following steps:
Step 1: chopped carbon fiber is surface-treated；Carbon fiber is with the toluene solution of 5% poly- methyl diphenylene diisocyanate
Dipping, the dry 1min at 200 DEG C, then coating is carried out with 10% rubber paste, and the dry 2min at 160 DEG C；When min is indicated
Between unit, minute；
The process Step 2: tread-rubber matrix is plasticated:
The 4min that plasticates is added in mixer in tread-rubber matrix；Min indicates chronomere, minute；
Step 3: tread-rubber matrix mixing process:
110 ± 1 DEG C at a temperature of, rotor speed is to plasticate place on 6 cun of double roller mixers of 40r/min in step 2
Sequentially added in tread-rubber matrix after reason chopped carbon fiber, tackifier and compounding agent, operation oil and vulcanizing agent after be kneaded
15min, middle chopped carbon fiber to be mixed are homogeneously dispersed in tread-rubber matrix, obtain chopped carbon fiber and tread-rubber base
The multiphase co-mixing system of bluk recombination；R indicates that revolution, min indicate chronomere, minute；
Step 4: chopped carbon fiber and the compound multiphase co-mixing system of tread-rubber matrix after step 3 mixing process
Temperature when being down to about 60 DEG C, calendering formation；
Step 5: then bottom sheet vulcanizes 20min on 25t electrothermal plate vulcanizer；Wherein, curing temperature is 140 DEG C, sulphur
Change pressure is 3.5MPa, and case depth is to guarantee to reach sulfurizing point in the middle part of tyre surface；T indicates the unit of weight, ton；MPa is indicated
The unit of pressure, megapascal；Min indicates the unit of time, minute；
Step 6: punching；So far, the engineering retreads tread rubber process of chopped carbon fiber enhancing is completed, is formed and is chopped
The engineering retreads tread rubber of fibre reinforced.
Specific embodiment 2:
Unlike specific embodiment one, the chopped carbon fiber enhancement engineering retreads tread rubber of present embodiment
Technique, the chopped carbon fiber are selected as polyacrylonitrile-based carbon fibre, and PAN is raw by Shanghai Jiu Fu carbon fibre material Co., Ltd
It produces, a diameter of 7.05um, tensile strength 3.56GPa, tensile modulus of elasticity 231.4Gpa, extension at break 1.62%.
Specific embodiment 3:
Unlike specific embodiment one or two, the chopped carbon fiber enhancement engineering retreads tire of present embodiment
Face adhesive process, in the case that the mass fraction of chopped carbon fiber is 7%, tensile strength and tearing strength reach maximum value.
Specific embodiment 4:
Unlike specific embodiment three, the chopped carbon fiber enhancement engineering retreads tread rubber of present embodiment
Technique, the length of the chopped carbon fiber are 6mm.
Specific embodiment 5:
Unlike specific embodiment one, two or four, the chopped carbon fiber enhancement engineering of present embodiment renovates wheel
Tire tread adhesive process, tread-rubber matrix includes the natural rubber material that mass parts are 65 and the fourth that mass parts are 35 in step 3
Benzene rubber material, and:
Reinforcing filler: on the basis of using carbon black N231, high-dispersity white carbon black is added, mass parts are respectively 40 Hes
10；
Promotor: the promotor of the NS model of Wuhan Yuancheng Technology Development Co., Ltd.'s production, mass parts 1.6 are selected；
Vulcanizing agent: the anti-recovery agent of the WK-901.6 model of Wuhan Jinghe Chemical Co., Ltd's production, mass parts 1.5 are selected；
Anti-aging agent: the anti-aging agent for the WH-02 model for selecting the sensible Chemical Co., Ltd. in Changchun to produce, mass parts 2.0；
The anti-aging agent is nontoxic, harmless, pollution-free；
Auxiliary agent: the auxiliary agent of HNZ model, mass parts 1.6 are selected；Determining to stretch, being hardness, tear-resistant and wear-resisting for sizing material can be improved
Property；
Stearic acid: mass parts 2.0；
Zinc oxide (ZnO): mass parts 5.0；
X-140 model aromatic naphtha: mass parts 3.0；
Anti- ozone wax: mass parts 0.4；
The tackifier of C501 model: mass parts 2.
Claims (3)
1. a kind of chopped carbon fiber enhancement engineering retreads tyre surface adhesive process, it is characterized in that: the following steps are included:
Step 1: chopped carbon fiber is surface-treated: carbon fiber is soaked with the toluene solution of 5% poly- methyl diphenylene diisocyanate
Stain, the dry 1min at 200 DEG C, then coating is carried out with 10% rubber paste, and the dry 2min at 160 DEG C；Min indicates the time
Unit, minute；
The process Step 2: tyre surface raw rubber matrix is plasticated: the 4min that plasticates is added in mixer in tread-rubber matrix；Min is indicated
Chronomere, minute；
Step 3: tread-rubber matrix mixing process: 110 ± 1 DEG C at a temperature of, rotor speed be 40r/min 6 cun of double rollers
On mixer, sequentially added in step 2 tread-rubber matrix of plasticating that treated chopped carbon fiber, tackifier and compounding agent,
It is kneaded 15min after operation oil and vulcanizing agent, middle chopped carbon fiber to be mixed is homogeneously dispersed in tread-rubber matrix, obtains
Chopped carbon fiber and the compound multiphase co-mixing system of tread-rubber matrix；R indicates that revolution, min indicate chronomere, minute；
Step 4: the temperature of chopped carbon fiber and the compound multiphase co-mixing system of tread-rubber matrix after step 3 mixing process
When degree is down to about 60 DEG C, calendering formation；
Step 5: then bottom sheet vulcanizes 20min on 25t electrothermal plate vulcanizer；Wherein, curing temperature is 140 DEG C, vulcanization pressure
Power is 3.5MPa, and case depth is to guarantee to reach sulfurizing point in the middle part of tyre surface；T indicates the unit of weight, ton；MPa indicates pressure
Unit, megapascal；Min indicates the unit of time, minute；
Step 6: punching；So far, the engineering retreads tread rubber process of chopped carbon fiber enhancing is completed, the carbon fiber that is chopped is formed
Tie up the engineering retreads tread rubber of enhancing；
Wherein, the mass fraction of chopped carbon fiber is 7 in the engineering retreads tread rubber of chopped carbon fiber enhancing；Be chopped carbon fiber
The length of dimension is 6mm.
2. chopped carbon fiber enhancement engineering retreads tyre surface adhesive process according to claim 1, it is characterized in that: described
Chopped carbon fiber is selected as polyacrylonitrile-based carbon fibre, PAN, a diameter of 7.05um, tensile strength 3.56GPa, tensile elastic
Modulus is 231.4Gpa, extension at break 1.62%.
3. chopped carbon fiber enhancement engineering retreads tyre surface adhesive process according to claim 1 or 2, it is characterized in that: step
The butadiene-styrene rubber material that tread-rubber matrix described in rapid three includes the natural rubber material that mass parts are 65 and mass parts are 35
Material, and:
Reinforcing filler: on the basis of using carbon black N231, high-dispersity white carbon black is added, mass parts are respectively 40 and 10；
Promotor: the promotor of NS model, mass parts 1.6 are selected；
Vulcanizing agent: the anti-recovery agent of WK-901.6 model, mass parts 1.5 are selected；
Anti-aging agent: the anti-aging agent of WH-02 model, mass parts 2.0 are selected；
Auxiliary agent: the auxiliary agent of HNZ model, mass parts 1.6 are selected；
Stearic acid: mass parts 2.0；
Zinc oxide: mass parts 5.0；
X-140 model aromatic naphtha: mass parts 3.0；
Anti- ozone wax: mass parts 0.4；
The tackifier of 2C501 model: mass parts 2.
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| CN110713648B (en) * | 2018-07-13 | 2022-05-27 | 杭州星庐科技有限公司 | Anti-aging polar rubber composition, and processing method and application thereof |
| CN110317374B (en) * | 2019-07-30 | 2021-06-18 | 青岛科技大学 | Special vehicle solid wheel rubber material based on modified chopped carbon fibers and preparation method thereof |
| CN110229390A (en) * | 2019-07-30 | 2019-09-13 | 青岛科技大学 | A kind of natural rubber lagging material of modified chopped carbon fiber and preparation method thereof |
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| JP2007023144A (en) * | 2005-07-15 | 2007-02-01 | Bridgestone Corp | Active energy ray crosslinking-type adhesive and adhering method of rubber |
| CN103788422B (en) * | 2012-10-30 | 2016-05-25 | 中国石油化工股份有限公司 | A kind of rubber composition and tire tread glue and preparation method thereof |
| CN104441911A (en) * | 2013-09-12 | 2015-03-25 | 厚生股份有限公司 | Preparation method of flame resistant and wear resistant rubber cloth for fire fighting |
| CN107200874A (en) * | 2016-03-20 | 2017-09-26 | 青岛科技大学 | A kind of antistatic, heat conduction and wear-resisting tyre surface glue material and preparation method thereof |
| CN107312218B (en) * | 2017-06-22 | 2019-01-04 | 青岛科技大学 | A kind of rubber composite and preparation method thereof of low rolling resistance high abrasion-resistant tread rubber |
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