CN110183746A - A kind of tire flap mouthpiece shield glue composition and preparation method thereof - Google Patents
A kind of tire flap mouthpiece shield glue composition and preparation method thereof Download PDFInfo
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- CN110183746A CN110183746A CN201910593395.3A CN201910593395A CN110183746A CN 110183746 A CN110183746 A CN 110183746A CN 201910593395 A CN201910593395 A CN 201910593395A CN 110183746 A CN110183746 A CN 110183746A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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Abstract
The present invention provides a kind of tire flap mouthpiece shield glue composition and preparation method thereof, which solve the external metal gaskets of existing tire flap easily to hurt cover tire or rim strip, the technical issues of being easily worn, feed components form as follows according to parts by weight: 70~95 parts of isoprene rubber, 5~30 parts of SBR1507 rubber, 2.5~5 parts of nano zine oxide, 1.5~3 parts of stearic acid, 1.5~3 parts of dispersing agent HT, 5~20 parts of white carbon black, 40~70 parts of carbon black N351, 1~3 part of antioxidant D TPD, 1~3 part of anti-aging agent IPPD, 1~2 part of silane coupling agent NXT, 1~3 part of Resin A -250, 3~5 parts of insoluble sulfur DOT7020, 0.8~1.5 part of accelerator TBSI, vulcanizing agent DTDM 1~3 part, 2~6 parts of methylene donor RA65；Wherein the total number of isoprene rubber and SBR1507 rubber is 100 parts；One section of mixing, the two-stage mixing, three sections plus sulphur and the molding preparation method of film of tire flap mouthpiece shield glue composition are additionally provided simultaneously, can be widely applied to rubber tyre technical field.
Description
Technical field
The present invention relates to rubber tyre technical field, in particular to a kind of tire flap mouthpiece shield glue composition and its preparation
Method.
Background technique
The tire component part important as vehicle, affects the performance of vehicle, and more concerning traffic safety is arrived, one kind is common
Be mainly made of cover tire, the inner tube of a tyre and rim strip tire tube air-inflating tire.Compressed air is full of in the inner tube of a tyre, cover tire is used to protect the inner tube of a tyre
It is injury-free and there is certain elasticity；Rim strip is arranged between wheel rim and the inner tube of a tyre to the device for protecting the inner tube of a tyre, is being exercised
Cheng Zhong, rim strip can be to avoid the inner tube of a tyre because damaging caused by rubbing for a long time with wheel rim, while it is internal to slow down cover tire toe mouth
The extruding of tire extends the service life of the inner tube of a tyre.
Inner tube valve nozzle passes through wheel hub slot and stretches into wheel rim side, and therefore, rim strip nozzle aperture position is rubbed inner tube valve nozzle
It is easily damaged under wiping, in order to avoid the abrasion at rim strip nozzle aperture position, usually adds metal gasket at rim strip nozzle aperture position at present, award
The utility model that power notification number is CN201761293U discloses a kind of metallic gasket for tire cushion belt, is arranged in wheel rim and tyre pads
Between band, this metal gasket is installed on wheel by the protrusion for being provided with valve port and being mountable in the slot of the wheel rim
Between rim and tire flap, the valve port that inner tube valve nozzle passes through on metal gasket protrudes into wheel hub slot, and then avoids tire
It is directly contacted between rim strip and valve nozzle, prevents abrasion of the inner tube valve nozzle to rim strip, while this metal gasket is equipped with and can pacify
Protrusion loaded on wheel rim slot, this protrusion are embedded in wheel hub slot, and then the position of fixed metal gasket, prevent it because occurring
It is damaged caused by dislocation and skew, extends the service life of metal gasket.But in actual use, still main
There are both sides deficiencies:
(1) external metal gasket is installed at the nozzle aperture position of rim strip, there are the sections at metal gasket edge or fracture to cut
Hurt the hidden danger of cover tire or rim strip, to influence the use of cover tire or rim strip.
(2) in rim strip installation process, although can accomplish to avoid directly connecing between existing metal gasket and valve nozzle
Touching, but during tire used, the inner tube of a tyre is inevitably subjected to displacement, so that the valve nozzle and metal gasket on the inner tube of a tyre are straight
Contact causes inner tube valve nozzle to wear metal gasket, shortens the service life of rim strip.
Summary of the invention
The purpose of the present invention is to solve the deficiency of above-mentioned technology, provide a kind of tire flap mouthpiece shield glue composition and
Preparation method extends the service life of rim strip.
For this purpose, the present invention provides a kind of tire flap mouthpiece shield glue composition, feed components form such as according to parts by weight
Under:
Isoprene rubber is 70~95 parts, and SBR1507 rubber is 5~30 parts, and nano zine oxide is 2.5~5 parts, and stearic acid is
1.5~3 parts, dispersing agent HT is 1.5~3 parts, and white carbon black is 5~20 parts, and carbon black N351 is 40~70 parts, and antioxidant D TPD is 1
~3 parts, anti-aging agent IPPD is 1~3 part, and silane coupling agent NXT is 1~2 part, and Resin A -250 is 1~3 part, insoluble sulfur
DOT7020 is 3~5 parts, and accelerator TBSI is 0.8~1.5 part, and vulcanizing agent DTDM is 1~3 part, and methylene donor RA65 is 2
~6 parts；Wherein the total number of isoprene rubber and SBR1507 rubber is 100 parts.
Preferably, a kind of above-mentioned tire flap mouthpiece protects glue composition, and feed components form as follows according to parts by weight:
Isoprene rubber is 80~95 parts, and SBR1507 rubber is 5~20 parts, and nano zine oxide is 3~5 parts, and stearic acid is
1.5~3 parts, dispersing agent HT is 2~3 parts, and white carbon black is 5~18 parts, and carbon black N351 is 55~70 parts, and antioxidant D TPD is 1~3
Part, anti-aging agent IPPD is 1~3 part, and silane coupling agent NXT is 1~1.8 part, and Resin A -250 is 1.5~3 parts, insoluble sulfur
DOT7020 is 4~5 parts, and accelerator TBSI is 0.8~1.5 part, and vulcanizing agent DTDM is 1~3 part, and methylene donor RA65 is 3
~6 parts.
Preferably, a kind of above-mentioned tire flap mouthpiece protects glue composition, and feed components form as follows according to parts by weight:
Isoprene rubber is 90 parts, and SBR1507 rubber is 10 parts, and nano zine oxide is 4 parts, and stearic acid is 3 parts, dispersing agent HT
It is 2.5 parts, white carbon black is 18 parts, and carbon black N351 is 57 parts, and antioxidant D TPD is 3 parts, and anti-aging agent IPPD is 1 part, silane coupled
Agent NXT is 1.8 parts, and Resin A -250 is 2.5 parts, and insoluble sulfur DOT7020 is 4 parts, and accelerator TBSI is 1 part, vulcanizing agent
DTDM is 3 parts, and methylene donor RA65 is 5 parts.
A kind of preparation method of above-mentioned tire flap mouthpiece shield glue composition, comprising the following steps:
(1) one section mixing: from feeder nose of banbury mixer be added isoprene rubber, SBR1507 rubber, nano zine oxide, stearic acid,
Dispersing agent HT, antioxidant D TPD, anti-aging agent IPPD, silane coupling agent NXT, Resin A -250 press bolt 40s；Then lift mixer
Upper top is fastened, and white carbon black and part carbon black N351 is added from feeder nose of banbury mixer, presses bolt 40s；Sizing material temperature reaches 155 in mixer
DEG C when, open mixer discharge gate, be discharged mixing sizing material, and on a mill cool down bottom sheet, temperature control at 18~45 DEG C；Room
Temperature parks 4~16h, obtains one section of glue stuff compounding；
(2) two-stage mixing；One section of glue stuff compounding of step (1) is added from feeder nose of banbury mixer, presses bolt 40s；Then lift
Top is fastened on mixer, and remaining carbon black N351 is added from feeder nose of banbury mixer, presses bolt 40s；Sizing material temperature reaches 155 DEG C in mixer
When, mixer discharge gate is opened, mixing sizing material is discharged, and cools down bottom sheet on a mill, temperature is controlled at 18~45 DEG C；Room temperature
4~16h is parked, two-stage mixing sizing material is obtained；
(3) three sections plus sulphur: the two-stage mixing sizing material of step (2) being added from feeder nose of banbury mixer, presses bolt 40s；Then lift
Top is fastened on mixer, and insoluble sulfur DOT7020, accelerator TBSI, vulcanizing agent DTDM, methylene is added from feeder nose of banbury mixer
Donor RA65 presses bolt 40s；When sizing material temperature reaches 100 DEG C in mixer, mixer discharge gate is opened, mixing sizing material is discharged,
And bottom sheet is cooled down on a mill, temperature is controlled at 18~45 DEG C；Room temperature parks 8~96h, obtains three sections of vulcanized rubbers；
(4) film forms: three sections of vulcanized rubbers of step (3) being added into cold feed extruder, squeeze out film, temperature control
System is at 18~45 DEG C；Room temperature parks 4~for 24 hours, obtain tire flap mouthpiece shield glue composition.
Preferably, step (1), step (2), in step (3), 20~60rpm of rotor speed of banbury mixer is pushed up on mixer and is fastened
0.4~0.6MPa of oil pressure.
Preferably, mixer model XM-270 mixer, cold feed extruder model XJ-150.
The beneficial effects of the present invention are: the present invention provides a kind of tire flap mouthpiece shield glue composition and preparation method thereof,
At the nozzle aperture position of rim strip, connection setting rim strip mouthpiece protects glue, on the one hand, rim strip and rim strip mouthpiece shield glue belong to elastic rubber
Material can buffer external force during tire running jointly, effectively extend the service life of rim strip；On the other hand, it pads
Band mouthpiece shield glue has the performances such as high intensity, high rigidity, high abrasion, heat oxygen aging resistance, and rim strip mouthpiece shield glue is that rubber is high-elastic
Property material, effectively extends the service life of rim strip；Third saves currently available technology and installs external metal gasket step
Suddenly, labor intensity is reduced, cost of labor is reduced, saves human resources.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of prior art rim strip；
Fig. 2 is the structural schematic diagram for being equipped with the rim strip of rim strip mouthpiece shield glue；
Fig. 3 is the structural schematic diagram of A-A cross-sectional view shown in Fig. 2；
Fig. 4 is the structural schematic diagram of B-B cross-sectional view shown in Fig. 2.
Marked in the figure: 1. rim strips, 2. rim strip nozzle aperture, 3. rim strip mouthpieces protect glue.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the invention will be further described, to help the contents of the present invention are understood.
Method used in the present invention is conventional method unless otherwise required；Used raw material and device, such as without special rule
It is fixed, it is conventional commercial product.
Raw material described in following embodiment are market purchase.Wherein, isoprene rubber is Russian imported product；
SBR1507 rubber is Qilu Petrochemical product；Nano zine oxide is Zibo Xing Ya new material limited liability company product；Stearic acid is
Rongcheng City's chemical general factory product；Dispersing agent HT is million Industrial Co., Ltd.'s product of Zibo moral；White carbon black is Shandong connection section new function
Materials Co., Ltd's product；Carbon black N351 is new energy scientific & technical corporation, Shanxi three strongest ones product；Antioxidant D TPD is that Nanjing chemical industry is total
Factory's product；Anti-aging agent IPPD is Nanjing chemical general factory product；Silane coupling agent NXT is the detailed chemical company's product of Shanghai Qi；Resin
A-250 is Sheng Laikete international trade (Shanghai) Co., Ltd. product；Insoluble sulfur DOT7020 is that Jing Hai chemical industry in Shanghai is limited
Products；Accelerator TBSI is Wenzhou Gray Chemical Co., Ltd. product；Vulcanizing agent DTDM is Rongcheng City's chemical general factory product；
Methylene donor RA65 is Jiaozuo City Hua Bang auxiliary agent Co., Ltd product.
Embodiment 1, embodiment 2, embodiment 3, embodiment 4, a kind of tire flap mouthpiece shield glue combination described in embodiment 5
Each material content unit in composition formula such as table 1:(table 1 are as follows: parts by weight)
Table 1: the adhesive glue layer formula of heat-resistant polyester canvas apron
| Recipe ingredient | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Isoprene rubber | 70 | 80 | 85 | 90 | 95 |
| SBR1507 rubber | 30 | 20 | 15 | 10 | 5 |
| Nano zine oxide | 2.5 | 3 | 3.5 | 4 | 5 |
| Stearic acid | 1.5 | 2.5 | 2 | 3 | 1.5 |
| Dispersing agent HT | 1.5 | 2 | 1.5 | 2.5 | 3 |
| White carbon black | 20 | 15 | 10 | 18 | 5 |
| N351 carbon black | 40 | 70 | 60 | 57 | 55 |
| Antioxidant D TPD | 1.5 | 2 | 1.8 | 3 | 1 |
| Anti-aging agent IPPD | 1.5 | 1 | 1.2 | 1 | 3 |
| Silane coupling agent NXT | 2 | 1.5 | 1 | 1.8 | 1 |
| A-250 resin | 1 | 1.5 | 2 | 2.5 | 3 |
| Insoluble sulfur DOT7020 | 3 | 4 | 5 | 4 | 5 |
| Accelerator TBSI | 1 | 0.8 | 1 | 1 | 1.5 |
| Vulcanizing agent DTDM | 1 | 2 | 1.5 | 3 | 1 |
| Methylene donor RA65 | 2 | 3 | 4 | 5 | 6 |
Above-mentioned raw materials are as follows in the application role:
The effect that isoprene rubber is compounded with SBR1507 rubber: the processing performance for improving sizing material is conducive to the dispersion of compounding agent,
Tensile strength, tearing strength, wear-resisting property, the ageing-resistant performance etc. for improving vulcanizate, reduce the heat of vulcanizate, reduce
Vulcanizate compressive deformation.
The effect of nano zine oxide: it is activating agent and stearic acid with the use of there is synergistic effect, improves the vulcanization speed of sizing material
Degree, can reduce dosage 30-40% compared to common zinc oxide, be good for the environment.
Stearic effect；It is activating agent and stearic acid with the use of there is synergistic effect, improves the curingprocess rate of sizing material.
The effect of dispersing agent HT；Improve the dispersion homogeneity of sizing material, shortens mixing time.
The effect that white carbon black is compounded with carbon black N351；The wear-resisting property and resilience of vulcanizate are improved, it is raw to reduce vulcanizate
Heat.
The effect that antioxidant D TPD is compounded with anti-aging agent IPPD；Anti-aging agent IPPD provides necessary short-term defences effect, and
Antioxidant D TPD then plays the role of extended protection, and two seed type p-phenylenediamine have synergistic effect, improve the heat resistanceheat resistant of vulcanizate
Aging, ozone and aging resistance etc..
The effect of silane coupling agent NXT: with white carbon black cooperation there is synergistic effect together, improves the wearability of vulcanizate
Can, vulcanizate heat and hysteresis loss are reduced, the rubber compounding time is reduced, reduces Mooney viscosity.
The effect of Resin A -250: silica-hexa-resorcinol is formed together with white carbon black, silane coupling agent NXT, methylene donor RA65
On the one hand binding system guarantees that the adhesive strength of isoprene rubber and SBR1507 rubber meets requirement, on the other hand guarantees sulphur
Change the bond properties that foremast protects linkage interface between glue composition and existing flap rubber with mouthpiece；Vulcanizate heat is reduced simultaneously,
Improve the wearability and tearing-resistant performance of vulcanizate.
The effect of insoluble sulfur DOT7020: existing in rubber with dispersity, so that sizing material no blooming, has good
Viscosity, while can guarantee rim strip mouthpiece shield glue presentation quality.
The effect of accelerator TBSI: having time of scorch long, and sizing material processing performance safety, vulcanizate modulus is high, reduces
Vulcanizate heat improves the wearability of vulcanizate.
The effect of vulcanizing agent DTDM: incipient scorch phenomenon will not occur for safe operation, sizing material, further increase vulcanizate modulus,
Hardness, wearability reduce compression heat generation.
Above-described embodiment 1, embodiment 2, embodiment 3, embodiment 4, a kind of tire flap mouthpiece protects glue described in embodiment 5
The preparation method of composition, comprising the following steps:
(1) one section mixing: from feeder nose of banbury mixer be added isoprene rubber, SBR1507 rubber, nano zine oxide, stearic acid,
Dispersing agent HT, antioxidant D TPD, anti-aging agent IPPD, silane coupling agent NXT, Resin A -250 press bolt 40s；Then lift mixer
Upper top is fastened, and white carbon black and part carbon black N351 is added from feeder nose of banbury mixer, presses bolt 40s；Sizing material temperature reaches 155 in mixer
DEG C when, open mixer discharge gate, be discharged mixing sizing material, and on a mill cool down bottom sheet, temperature control at 18~45 DEG C；Stop
Time control is put in 4~16h, obtains one section of glue stuff compounding；
(2) two-stage mixing；One section of glue stuff compounding of step (1) is added from feeder nose of banbury mixer, presses bolt 40s；Then lift
Top is fastened on mixer, and remaining carbon black N351 is added from feeder nose of banbury mixer, presses bolt 40s；Sizing material temperature reaches 155 DEG C in mixer
When, mixer discharge gate is opened, mixing sizing material is discharged, and cools down bottom sheet on a mill, temperature is controlled at 18~45 DEG C；It parks
Time controls in 4~16h, obtains two-stage mixing sizing material；
(3) three sections plus sulphur: the two-stage mixing sizing material of step (2) being added from feeder nose of banbury mixer, presses bolt 40s；Then lift
Top is fastened on mixer, and insoluble sulfur DOT7020, accelerator TBSI, vulcanizing agent DTDM, methylene is added from feeder nose of banbury mixer
Donor RA65 presses bolt 40s；When sizing material temperature reaches 100 DEG C in mixer, mixer discharge gate is opened, mixing sizing material is discharged,
And bottom sheet is cooled down on a mill, temperature is controlled at 18~45 DEG C；Storage period controls in 8~96h, obtains three sections of vulcanizates
Material；
(4) film forms: three sections of vulcanized rubbers of step (3) being added into cold feed extruder, squeeze out film, temperature control
System is at 18~45 DEG C；Storage period control 4~for 24 hours, obtain tire flap mouthpiece shield glue composition.
Above-mentioned steps (1), step (2), in step (3), rotor speed of banbury mixer controls on 20~60rpm, mixer
Oil pressure cntrol is fastened in 0.4~0.6MPa in top.
After the cooling bottom sheet of above-mentioned steps (1)-step (3) open mill, above-mentioned steps (4) cold feed extruder extrusion film
It parks at room temperature.
Above-mentioned mixer model XM-270 mixer, cold feed extruder model XJ-150.
Vulcanized mechanical test: 1~embodiment of above-described embodiment 5 is distinguished into tire flap mouthpiece obtained
Shield glue composition vulcanizes 30min, vulcanized mechanical test data such as the following table 2 under the conditions of 143 DEG C.Wherein, it stretches
Intensity, tearing strength, stress at definite elongation, standard based on elongation at break performance test are GB/T528-2009.Shao Er A type is hard
Spending standard based on performance test is GB/T531.1-2008, and standard based on Akron abrasion loss performance test is GB/
T1689-2014, standard based on sizing material degradation strength value preserving rate performance test are GB/T3512-2001, which protects
Value rate, that is, tensile strength change rate.Since tire flap mouthpiece shield glue composition is put forward for the first time for my company, no comparison
Example.
Table 2: the vulcanizate test data of tire flap mouthpiece shield glue composition
As can be seen from the above table, the vulcanization of the shield of tire flap mouthpiece made from 1~embodiment of above-described embodiment 5 glue composition
Glue tensile strength is 18.9~21.3Mpa, and tearing strength is 89~112KN/m, and 300% stress at definite elongation is 12.5-14.2Mpa,
Elongation at break is that 426~445%, Shao Er A type hardness tester is 82~90 degree, and Akron abrasion loss is 0.07~0.12cm3, strength
Value preserving rate is 91~96%.In general, vulcanized mechanical prepared by embodiment 4 is preferable.
Durability test: according to the matched different size tire of institute, the tire flap mould of different size is selected, is cut respectively
It takes tire flap mouthpiece made from the application to protect glue composition, is bonded in the rim strip nozzle aperture position in flap rubber, at this time rim strip mouth
Son shield glue composition and flap rubber belong to half finished rubber, and the viscoplasticity by itself makes rim strip mouthpiece shield glue composition and rim strip
Gluing is combined, and then carries out dress glue, molding, vulcanization by the sulfuration process of tire flap, after vulcanization, takes out tyre pads
Band obtains the rim strip of specification corresponding with different size tire, as Figure 1-Figure 4, in the rim strip nozzle aperture 2 of existing rim strip 1
Place, which is connected with, protects glue 3 for the rim strip mouthpiece of annular.Tire flap mouthpiece made from 1~embodiment of above-described embodiment 5 is protected into glue
Composition, is made the rim strip of mating 11.00R20 specification tyre respectively according to the method described above, and be respectively assembled to 5 it is qualified
11.00R20 specification tyre；In order to be contrasted, by the rim strip for being equipped with existing metal gasket be fitted to respectively 2 it is qualified
11.00R20 specification tyre carries out durability test, speed 65Km/h according to following test method, and a phases-time is 47h,
Rate of load condensate is 100%；The second stage time is 10h, rate of load condensate 110%；Time phase III is 10h, and rate of load condensate is
120%；The fourth stage time is 10h, rate of load condensate 130；5th phases-time is 10h, rate of load condensate is 140% until tire is run
It is bad.Test result is see table 3:
Table 3: tire flap mouthpiece protects glue composition durability test result
As can be seen from Table 3, glue composition is protected using tire flap mouthpiece made from 1~embodiment of above-described embodiment 5
Rim strip, in very harsh durability test, rim strip and mouthpiece shield glue position presentation quality it is normal, do not occur mouthpiece shield glue
The phenomenon that wear-out failure, does not occur the phenomenon that interface between rim strip and mouthpiece shield glue mutually separates yet.
Actual road test: protecting glue composition for tire flap mouthpiece made from 1~embodiment of above-described embodiment 5, according to
The rim strip of mating 11.00R20 specification tyre is made in above-mentioned preparation method respectively, and is assembled in 11.00R20 specification tyre, point
It is not assembled on five liberation automobiles；In order to be contrasted, in addition, same two liberation automobiles are selected, it is mating to be equipped with
The 11.00R20 specification qualification tire of the rim strip of metal gasket；Above-mentioned 7 liberation car gages, 40 tons of tires of cargo dead-weight add up row
Sail 220,000 kilometers, inspection result be equipped with the application rim strip appearance it is normal, it is normal that mouthpiece protects glue position, and is equipped with gold
Belong to the tire of the rim strip of gasket, metal gasket damage.
The prior art installs external metal gasket at rim strip nozzle aperture position, and rim strip is elastic rubber material, and metal gasket
It is rigid material.Tire running process is a dynamic process, and each position of tire itself is there is deformation is deflected, as rigidity
Metal gasket, on the one hand its own by external force, it is easy to be broken；On the other hand at the edge of metal gasket and positioned at rim strip
The rim strip boundary junction at nozzle aperture position also constantly deflects stretching, and there are metal gasket edge or the section of fracture incised wound are outer
The hidden danger of tire or rim strip, to influence the use of cover tire or rim strip.And the application uses the connection at the nozzle aperture position of rim strip to set
Rim strip mouthpiece shield glue is set, rim strip and rim strip mouthpiece shield glue belong to elastic rubber material, during tire running, can delay jointly
External force is rushed, the service life of rim strip is effectively extended.
At present in rim strip installation process, although can accomplish to avoid directly connecing between existing metal gasket and valve nozzle
Touching, but during tire routine use or maintenance maintenance, the inner tube of a tyre is inevitably subjected to displacement, and leads to the valve on the inner tube of a tyre
Nozzle is directly contacted with metal gasket, and metal gasket and valve nozzle belong to rigid material, in vehicle travel process, inner tube valve
Continuous abrasion of the nozzle to metal gasket, not only has damage inner tube valve nozzle, also the service life of serious curtailment rim strip.And this Shen
Please rim strip mouthpiece shield glue there are the performances such as high intensity, high rigidity, high abrasion, and it is rubber highly elastic material that rim strip mouthpiece, which protects glue,
Compared to the metal gasket of rigidity, the service life of rim strip is effectively extended.
When running car, can be pressurized with the tyre surface of ground contacting part position and generate biggish deformation, make in tire gas by
Larger compression, it is theoretical by gas it is found that compression can make gas heat release, and this continual heat release, it will lead to heat product
It is tired to rise, therefore tyre temperature can increase, but due to there is the cooling of air, tire temperature can be generally increased to after a steady state value not
It is further continued for rising, under normal circumstances, temperature when tire working is usually between 40-80 DEG C, runs in summer or for a long time high
Speed traveling temperature is up to 110 DEG C.Tire is as the unique component with ground face contact of automobile, in automobile in daily traveling, muddy water,
The sewage such as rainwater enter the gap between tire valve nozzle and wheel rim, are immersed in the surface of metal gasket.Metal gasket is chronically at
Under above-mentioned high temperature and Sewage Environment, high-temperature oxydation and heat erosion inevitably occurs, and the application rim strip mouthpiece shield glue is rubber
Glue highly elastic material not only itself has corrosion resistance, but also has preferable heatproof air aging performance, effectively extends pad
The service life of band.
In addition, the present invention is bonded in the rim strip in flap rubber before vulcanizing rim strip, by tire flap mouthpiece shield glue composition
Nozzle aperture position, die-filling vulcanization, make inside flap rubber, rim strip mouthpiece shield glue composition inside and flap rubber and rim strip mouthpiece shield
Rubber molecular chain is cross-linking vulcanized at being integral between glue composition, on the one hand, so that rim strip mouthpiece is protected glue group by vulcanization crosslinking
It closes object to combine closely with existing flap rubber, the connection type and metal gasket in the prior art and existing flap rubber connection type phase
Than, the service life of rim strip is significantly improved, currently available technology is on the other hand saved and external metal gasket step is installed,
Labor intensity is reduced, cost of labor is reduced, saves human resources.
It should be noted that tire flap mouthpiece shield glue composition of the present invention and existing rim strip glue bond use, such as with
Natural rubber, butadiene-styrene rubber, isoprene rubber or butadiene rubber etc. are the existing flap rubber of rubber system, are especially suitable for isoamyl
Rubber is the existing flap rubber of the formula system of main raw rubber.The application can be used as the rim strip mouthpiece shield glue of heavy-duty pneumatic tire.
Only as described above, only specific embodiments of the present invention, when the model that cannot be limited the present invention with this and implement
It encloses, therefore the displacement of its equivalent assemblies, or according to equivalent changes and modifications made by the invention patent protection scope, should still belong to this hair
The scope that bright claims are covered.
Claims (6)
1. a kind of tire flap mouthpiece protects glue composition, which is characterized in that feed components form as follows according to parts by weight:
Isoprene rubber is 70~95 parts, and SBR1507 rubber is 5~30 parts, and nano zine oxide is 2.5~5 parts, stearic acid 1.5
~3 parts, dispersing agent HT is 1.5~3 parts, and white carbon black is 5~20 parts, and carbon black N351 is 40~70 parts, and antioxidant D TPD is 1~3
Part, anti-aging agent IPPD is 1~3 part, and silane coupling agent NXT is 1~2 part, and Resin A -250 is 1~3 part, insoluble sulfur
DOT7020 is 3~5 parts, and accelerator TBSI is 0.8~1.5 part, and vulcanizing agent DTDM is 1~3 part, and methylene donor RA65 is 2
~6 parts；Wherein the total number of isoprene rubber and SBR1507 rubber is 100 parts.
2. a kind of tire flap mouthpiece according to claim 1 protects glue composition, which is characterized in that feed components according to
Parts by weight composition is as follows:
Isoprene rubber is 80~95 parts, and SBR1507 rubber is 5~20 parts, and nano zine oxide is 3~5 parts, and stearic acid is 1.5~3
Part, dispersing agent HT is 2~3 parts, and white carbon black is 5~18 parts, and carbon black N351 is 55~70 parts, and antioxidant D TPD is 1~3 part, is prevented
Old agent IPPD is 1~3 part, and silane coupling agent NXT is 1~1.8 part, and Resin A -250 is 1.5~3 parts, insoluble sulfur
DOT7020 is 4~5 parts, and accelerator TBSI is 0.8~1.5 part, and vulcanizing agent DTDM is 1~3 part, and methylene donor RA65 is 3
~6 parts.
3. a kind of tire flap mouthpiece according to claim 2 protects glue composition, which is characterized in that feed components according to
Parts by weight composition is as follows:
Isoprene rubber is 90 parts, and SBR1507 rubber is 10 parts, and nano zine oxide is 4 parts, and stearic acid is 3 parts, and dispersing agent HT is
2.5 parts, white carbon black is 18 parts, and carbon black N351 is 57 parts, and antioxidant D TPD is 3 parts, and anti-aging agent IPPD is 1 part, silane coupling agent
NXT is 1.8 parts, and Resin A -250 is 2.5 parts, and insoluble sulfur DOT7020 is 4 parts, and accelerator TBSI is 1 part, vulcanizing agent DTDM
It is 3 parts, methylene donor RA65 is 5 parts.
4. a kind of preparation method of tire flap mouthpiece shield glue composition according to claim 1-3, including with
Lower step:
(1) one section of mixing: isoprene rubber, SBR1507 rubber, nano zine oxide, stearic acid, dispersion is added from feeder nose of banbury mixer
Agent HT, antioxidant D TPD, anti-aging agent IPPD, silane coupling agent NXT, Resin A -250 press bolt 40s；Then lift on mixer and push up
It fastens, white carbon black and part carbon black N351 is added from feeder nose of banbury mixer, presses bolt 40s；Sizing material temperature reaches 155 DEG C in mixer
When, mixer discharge gate is opened, mixing sizing material is discharged, and cools down bottom sheet on a mill, temperature is controlled at 18~45 DEG C；It parks
4~16h obtains one section of glue stuff compounding；
(2) two-stage mixing；One section of glue stuff compounding of step (1) is added from feeder nose of banbury mixer, presses bolt 40s；Then lift mixing
Top is fastened on machine, and remaining carbon black N351 is added from feeder nose of banbury mixer, presses bolt 40s；When sizing material temperature reaches 155 DEG C in mixer,
Mixer discharge gate is opened, mixing sizing material is discharged, and cools down bottom sheet on a mill, temperature is controlled at 18~45 DEG C；Park 4~
16h obtains two-stage mixing sizing material；
(3) three sections plus sulphur: the two-stage mixing sizing material of step (2) being added from feeder nose of banbury mixer, presses bolt 40s；Then lift mixing
Top is fastened on machine, and insoluble sulfur DOT7020, accelerator TBSI, vulcanizing agent DTDM, methylene is added from feeder nose of banbury mixer and gives
Body RA65 presses bolt 40s；When sizing material temperature reaches 100 DEG C in mixer, opening mixer discharge gate, discharge mixing sizing material, and
Cooling bottom sheet, temperature are controlled at 18~45 DEG C on open mill；8~96h is parked, three sections of vulcanized rubbers are obtained；
(4) film forms: three sections of vulcanized rubbers of step (3) being added into cold feed extruder, squeeze out film, temperature control exists
18~45 DEG C；Park 4~for 24 hours, obtain tire flap mouthpiece shield glue composition.
5. a kind of preparation method of tire flap mouthpiece shield glue composition according to claim 4, which is characterized in that described
Step (1), step (2), in step (3), the 20~60rpm of rotor speed of banbury mixer, oil pressure 0.4 is fastened on top on the mixer
~0.6MPa.
6. a kind of preparation method of tire flap mouthpiece shield glue composition according to claim 4, which is characterized in that described
Mixer model XM-270 mixer, the cold feed extruder model XJ-150.
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| CN201910593395.3A CN110183746B (en) | 2019-07-03 | 2019-07-03 | Tire cushion rubber protecting composition with nozzle and preparation method thereof |
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| CN201910593395.3A CN110183746B (en) | 2019-07-03 | 2019-07-03 | Tire cushion rubber protecting composition with nozzle and preparation method thereof |
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| JP2016199695A (en) * | 2015-04-13 | 2016-12-01 | 横浜ゴム株式会社 | Rubber composition for tire |
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| JP2010126672A (en) * | 2008-11-28 | 2010-06-10 | Yokohama Rubber Co Ltd:The | Rubber composition for tire tread |
| CN103140549A (en) * | 2011-06-21 | 2013-06-05 | 住友橡胶工业株式会社 | Rubber composition for tire insulations and tire using same |
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Address after: 148 Longshan road Wendeng Weihai Shandong 264200 Patentee after: Weihai JIAHANG Rubber Technology Co.,Ltd. Address before: 148 Longshan road Wendeng Weihai Shandong 264200 Patentee before: WENDENG SANFENG TYRE Co.,Ltd. |
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