CN102634078A - Tire shoulder pad rubber composition and preparation method - Google Patents

Tire shoulder pad rubber composition and preparation method Download PDF

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Publication number
CN102634078A
CN102634078A CN2012101315156A CN201210131515A CN102634078A CN 102634078 A CN102634078 A CN 102634078A CN 2012101315156 A CN2012101315156 A CN 2012101315156A CN 201210131515 A CN201210131515 A CN 201210131515A CN 102634078 A CN102634078 A CN 102634078A
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parts
mixing
tire
seconds
tire shoulder
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CN102634078B (en
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丁玉华
单国玲
于志勇
马海民
林科
尚文艺
韩菁
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Triangle Tyre Co Ltd
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Triangle Tyre Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
    • B29B7/7495—Systems, i.e. flow charts or diagrams; Plants for mixing rubber

Abstract

The invention relates to the technical field of rubber, and in particular relates to a tire shoulder pad rubber composition and a preparation method. Based on 100 parts of natural rubber by weight, the tire shoulder pad rubber composition comprises the following components in part by weight: 5-10 parts of liquid butadiene rubber, 30-40 parts of carbon black, 5-10 parts of white carbon black, 5-6 parts of zinc oxide, 1-3 parts of stearic acid, 1-2 parts of silane coupling agent, 1-3 parts of N-(1,3-dimethylbutyl)-N'-phenyl p-phenylenediamine anti-ageing agent, 1-2 parts of 2,2,4-trimethyl-1,2-dihydroquinoline polymer anti-ageing agent, 1-3 parts of sulfur, 1.0-1.5 parts of vulcanization accelerator and 0.1-0.3 part of scorch retarder. According to the invention, the themogenesis property and hysteresis loss of a tire shoulder pad can be obviously reduced, the problem of shoulder separation in the use of a tire is reduced, and the usability of the tire is improved.

Description

Tire tire shoulder pad rubber combination and preparation method
Technical field
The present invention relates to the rubber technology field, specifically a kind of tire tire shoulder pad rubber combination and preparation method.
Background technology
As everyone knows; Advantages such as that heavy load radial tire has is wear-resisting, fuel-economizing, long service life; Its superior performance receives consumers in general's favor day by day; Through domestic heavy load radial tire market survey being found the empty problem of wheel tire shoulder is an outstanding problem in the present heavy load radial tire use, and it is relevant with the thermogenesis performance of tyre shoulder wedge sizing material to take on empty problem.
Summary of the invention
The object of the invention is exactly in order to overcome the deficiency of above-mentioned prior art; A kind of tire tire shoulder pad rubber combination and preparation method are provided; Can obviously reduce tyre shoulder wedge thermogenesis performance and hysteresis loss, reduce tire and use the empty problem of shoulder, improve the tire use properties.
The technical scheme that the present invention solves the problems of the technologies described above employing is: a kind of tire tire shoulder pad rubber combination is a benchmark with 100 parts by weight of natural rubber, also comprises in weight part:
5～10 parts of liquid cis-butadiene cements, 30～40 parts of carbon blacks, 5～10 parts of WHITE CARBON BLACKs, 5～6 parts of zinc oxide, 1～3 part of Triple Pressed Stearic Acid, 1～2 part of silane coupling agent, 1～3 part of N-(1; 3-diformazan butyl)-N '-diphenyl-para-phenylene diamine anti-aging agent, 1～2 part 2; 2; 4-trimethylammonium-1,2-dihyaroquinoline polymer anti-aging agent, 1～3 part of sulphur, 1.0～1.5 parts of vulcanization accelerators, 0.1～0.3 part of scorch retarder.
The preferred distant pawl type LBR-50 liquid cis-butadiene cement of said liquid cis-butadiene cement.
The preferred N375 of said carbon black, N660 carbon black.
Said silane coupling agent is the silica-based tetrasulfide of triethoxy and inertia dispersion agent by weight 1: 1 mixture.
The preferred N-tertiary butyl of said vulcanization accelerator-2-[4-morpholinodithio sulphonamide.
The preferred insoluble sulfur IS-7020 of said sulphur.
The preferred N-cyclohexylthiophthalimide of said scorch retarder.
A kind of method of producing said tire tire shoulder pad rubber comprises the following steps, its component ratio by weight:
Figure 2012101315156100002DEST_PATH_IMAGE001
one section is mixing: rotor speed 40～60rmp; Ram pressure 0.6～0.7MPa; At first 100 parts of tree elastomers are thrown into the mixer mixing chamber; Mixing 20～30 seconds, again 30～40 parts of carbon blacks, 5～10 parts of WHITE CARBON BLACKs, 5～6 parts of zinc oxide, 1～3 part of Triple Pressed Stearic Acid, 1～2 part of silane coupling agent, 1～3 part of anti-aging agent substance A, 1～2 part of anti-aging agent substance B are thrown into the mixer mixing chamber, continued mixing 20～30 seconds; The sizing material temperature reaches 120～130 ℃; Carry stone roller 5～10 seconds, mixing 40～50 seconds of ram, the sizing material temperature is 145～155 ℃; Binder removal is carried out in mixing end, obtains one section rubber master batch;
Figure 728353DEST_PATH_IMAGE002
parks for the first time, mixingly obtains one section rubber master batch as for cool to room temperature in the room air with one section;
two-stage mixing: rotor speed 40～60rmp; Ram pressure 0.6～0.7MPa throws into the mixer mixing chamber with one section rubber master batch, mixing 30～40 seconds of ram; The sizing material temperature reaches 120～130 ℃; Carry stone roller 5～10 seconds, continued ram mixing 30～40 seconds, the sizing material temperature reaches 145～155 ℃; Binder removal is carried out in mixing end, obtains two sections rubber master batch;
Figure 870753DEST_PATH_IMAGE004
parks for the second time, and two-stage mixing is obtained two sections rubber master batch as for cool to room temperature in the room air;
Figure 2012101315156100002DEST_PATH_IMAGE005
be refining eventually: two sections rubber master batch and 1～3 part of sulphur, 1.0～1.5 parts of vulcanization accelerators, 0.1～0.3 part of scorch retarder are thrown into the mixer mixing chamber together; Rotor speed 20～30rmp; Mixing 20～30 seconds of ram pressure 0.5～0.6MPa; Carry stone roller 5～10 seconds, continued ram mixing 20～30 seconds, the sizing material temperature is 95～105 ℃; Binder removal is carried out in mixing end, can obtain shoulder wedge finished product of the present invention.
The invention has the beneficial effects as follows, can obviously reduce tyre shoulder wedge thermogenesis performance and hysteresis loss, reduce tire and use the empty problem of shoulder, improve the tire use properties.
 
Embodiment
Below in conjunction with embodiment the present invention is done further description:
The present invention thinks the tree elastomer master in the shoulder wedge prescription, tree elastomer is comprehensive better, has technology viscosity preferably.Tree elastomer is 10#, the 20# standard rubbers that Thailand produces.
The liquid cis-butadiene cement adopts distant pawl type LBR-50 liquid cis-butadiene cement, and LBR-50 liquid cis-butadiene cement is the synthetic novel high polymer material of employing new technology, and its MWD is wide, and second-order transition temperature is low; It is big to have viscosity, and viscosity temperature characteristic is good, and low temperature viscosity is high, and it is lasting not do; Good with tree elastomer mutual miscibility ability, as special tenderizer, can reduce mixing time, reduce extrusion temperature; Distant pawl type structure does not influence its rerum natura, can reduce the heat of giving birth to of sizing material, improves parts viscosity.
It is N375, N660 carbon black that prescription MR medium reinforcing system of the present invention adopts carbon black; N375 stress at definite elongation, tensile strength height; N660 carbon black sizing material thermogenesis performance is low, and the use of WHITE CARBON BLACK and silane coupling agent can further reduce the living heat of sizing material and can improve the tear-resistant performance of sizing material again.WHITE CARBON BLACK is the high structure I of sedimentation type class 955#, 175#.Silane coupling agent is the mixture of silica-based tetrasulfide of triethoxy and inertia dispersion agent (by weight 1: 1).Antioxidant A is N-(1,3-diformazan butyl)-N '-diphenyl-para-phenylene diamine.Anti-aging agent B is 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer.Vulcanization accelerator is the N-tertiary butyl-2-[4-morpholinodithio sulphonamide, adopts vulcanization accelerator NS.Sulphur is insoluble sulfur IS-7020.Scorch retarder is a N-cyclohexylthiophthalimide product, adopts anti-scorching agent CTP.
The present invention produces the method for said tire tire shoulder pad rubber, comprise the following steps, its component ratio by weight:
Figure 69653DEST_PATH_IMAGE001
one section is mixing: rotor speed 40～60rmp; Ram pressure 0.6～0.7MPa at first throws into the mixer mixing chamber with 100 parts of tree elastomers, mixing 20～30 seconds; Again 30～40 parts of carbon blacks, 5～10 parts of WHITE CARBON BLACKs, 5～6 parts of zinc oxide, 1～3 part of Triple Pressed Stearic Acid, 1～2 part of silane coupling agent, 1～3 part of anti-aging agent substance A, 1～2 part of anti-aging agent substance B are thrown into the mixer mixing chamber; Continued mixing 20～30 seconds, the sizing material temperature reaches 120～130 ℃, carries stone roller 5～10 seconds; Mixing 40～50 seconds of ram; The sizing material temperature is 145～155 ℃, and binder removal is carried out in mixing end, obtains one section rubber master batch;
Figure 613898DEST_PATH_IMAGE002
parks for the first time, mixingly obtains one section rubber master batch as for cool to room temperature in the room air with one section;
Figure 607262DEST_PATH_IMAGE003
two-stage mixing: rotor speed 40～60rmp; Ram pressure 0.6～0.7MPa throws into the mixer mixing chamber with one section rubber master batch, mixing 30～40 seconds of ram; The sizing material temperature reaches 120～130 ℃; Carry stone roller 5～10 seconds, continued ram mixing 30～40 seconds, the sizing material temperature reaches 145～155 ℃; Binder removal is carried out in mixing end, obtains two sections rubber master batch;
Figure 361591DEST_PATH_IMAGE004
parks for the second time, and two-stage mixing is obtained two sections rubber master batch as for cool to room temperature in the room air;
Figure 98603DEST_PATH_IMAGE005
be refining eventually: two sections rubber master batch and 1～3 part of sulphur, 1.0～1.5 parts of vulcanization accelerators, 0.1～0.3 part of scorch retarder are thrown into the mixer mixing chamber together; Rotor speed 20～30rmp; Mixing 20～30 seconds of ram pressure 0.5～0.6MPa; Carry stone roller 5～10 seconds, continued ram mixing 20～30 seconds, the sizing material temperature is 95～105 ℃; Binder removal is carried out in mixing end, can obtain shoulder wedge finished product of the present invention.
Process step of the present invention, one section milling maternal rubber adopt glue, carbon black small powder step feeding mixing, can improve dispersity of carbon black can and over-all properties; One section rubber master batch carriage return of two sections milling maternal rubbers further improves the carbon black dispersion performance, improves and improves properties of rubber.
Resultant product of the present invention and original product prescription are as shown in table 1, and each item physicals and finished product use properties parameter comparison are as shown in table 2.
 
(each material content unit is table 1 in this table: weight part)
? Original formulation Embodiment 1 Embodiment 2 Embodiment 3
Tree elastomer 100 100 100 100
The liquid cis-butadiene cement ? 5 7 10
N375 15 20 15 15
N660 25 20 20 20
WHITE CARBON BLACK ? 5 7 10
Silane coupling agent ? 1.0 1.5 2.0
Zinc oxide 3.5 5.0 6.0 5.0
Triple Pressed Stearic Acid 1.0 2.0 2.0 3.0
The anti-aging agent substance A 1.0 1.5 1.5 2.5
The anti-aging agent substance B 1.0 1.5 1.5 2.0
Insoluble sulfur 1.0 2.0 3.0 2.0
Vulcanization accelerator NS 1.0 1.0 1.2 1.5
Anti-scorching agent CTP 0.2 0.2 0.2 0.1
Table 2
? Original formulation Embodiment 1 Embodiment 2 Embodiment 3
Shore a hardness/degree 60 62 63 64
100% stress at definite elongation/MPa 2.1 2.2 2.2 2.3
300% stress at definite elongation/MPa 10.0 10.2 10.9 11.20
Tensile strength/MPa 25.0 25.5 26.0 26.3
Tensile yield/% 530 590 575 581
Tear strength/KN/m 97 105 110 114
60 ℃ of hysteresis loss/Tan δ 0.111 0.095 0.087 0.080
Rebound resilience/% 50 62 65 66
Tyres durable/hour 74 80 82 85
Can find out from the prescription example, patent formulation than original formulation hardness modulus raisings-raisings tyre pad glue support performance, give birth to heat drop low-raising tyres durable performance, actual testing tire endurance quality raising is more than 10%.

Claims (8)

1. tire tire shoulder pad rubber combination; It is characterized in that: with 100 parts by weight of natural rubber is benchmark; Also comprise in weight part; 5～10 parts of liquid cis-butadiene cements, 30～40 parts of carbon blacks, 5～10 parts of WHITE CARBON BLACKs, 5～6 parts of zinc oxide, 1～3 part of Triple Pressed Stearic Acid, 1～2 part of silane coupling agent, 1～3 part of N-(1,3-diformazan butyl)-N '-diphenyl-para-phenylene diamine anti-aging agent, 1～2 part 2,2; 4-trimethylammonium-1,2-dihyaroquinoline polymer anti-aging agent, 1～3 part of sulphur, 1.0～1.5 parts of vulcanization accelerators, 0.1～0.3 part of scorch retarder.
2. according to the said tire tire shoulder of claim 1 pad rubber combination, it is characterized in that said liquid cis-butadiene cement is distant pawl type LBR-50 liquid cis-butadiene cement.
3. according to the said tire tire shoulder of claim 1 pad rubber combination, it is characterized in that the preferred N375 of said carbon black, N660.
4. according to the said tire tire shoulder of claim 1 pad rubber combination, it is characterized in that said silane coupling agent is the silica-based tetrasulfide of triethoxy and inertia dispersion agent by weight 1: 1 mixture.
5. according to the said tire tire shoulder of claim 1 pad rubber combination, it is characterized in that said vulcanization accelerator is the N-tertiary butyl-2-[4-morpholinodithio sulphonamide.
6. according to the said tire tire shoulder of claim 1 pad rubber combination, it is characterized in that said sulphur is insoluble sulfur IS-7020.
7. according to the said tire tire shoulder of claim 1 pad rubber combination, it is characterized in that said scorch retarder is the N-cyclohexylthiophthalimide.
8. method of producing the said tire tire shoulder of claim 1 pad rubber is characterized in that: comprise the following steps, its component ratio by weight,
Figure 2012101315156100001DEST_PATH_IMAGE002
one section is mixing: rotor speed 40～60rmp; Ram pressure 0.6～0.7MPa; At first 100 parts of tree elastomers are thrown into the mixer mixing chamber; Mixing 20～30 seconds, again 30～40 parts of carbon blacks, 5～10 parts of WHITE CARBON BLACKs, 5～6 parts of zinc oxide, 1～3 part of Triple Pressed Stearic Acid, 1～2 part of silane coupling agent, 1～3 part of anti-aging agent substance A, 1～2 part of anti-aging agent substance B are thrown into the mixer mixing chamber, continued mixing 20～30 seconds; The sizing material temperature reaches 120～130 ℃; Carry stone roller 5～10 seconds, mixing 40～50 seconds of ram, the sizing material temperature is 145～155 ℃; Binder removal is carried out in mixing end, obtains one section rubber master batch;
Figure 2012101315156100001DEST_PATH_IMAGE004
parks for the first time, mixingly obtains one section rubber master batch as for cool to room temperature in the room air with one section;
Figure 2012101315156100001DEST_PATH_IMAGE006
two-stage mixing: rotor speed 40～60rmp; Ram pressure 0.6～0.7MPa throws into the mixer mixing chamber with one section rubber master batch, mixing 30～40 seconds of ram; The sizing material temperature reaches 120～130 ℃; Carry stone roller 5～10 seconds, continued ram mixing 30～40 seconds, the sizing material temperature reaches 145～155 ℃; Binder removal is carried out in mixing end, obtains two sections rubber master batch;
Figure 2012101315156100001DEST_PATH_IMAGE008
parks for the second time, and two-stage mixing is obtained two sections rubber master batch as for cool to room temperature in the room air;
Figure 2012101315156100001DEST_PATH_IMAGE010
be refining eventually: two sections rubber master batch and 1～3 part of sulphur, 1.0～1.5 parts of vulcanization accelerators, 0.1～0.3 part of scorch retarder are thrown into the mixer mixing chamber together; Rotor speed 20～30rmp; Mixing 20～30 seconds of ram pressure 0.5～0.6MPa; Carry stone roller 5～10 seconds; Continued ram mixing 20～30 seconds; The sizing material temperature is 95～105 ℃, and binder removal is carried out in mixing end, can obtain shoulder wedge finished product of the present invention.
CN201210131515.6A 2012-05-02 2012-05-02 Tire shoulder pad rubber composition Active CN102634078B (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103012897A (en) * 2012-12-23 2013-04-03 北京化工大学 Method for adding high-sulfur-content rubber compound to improve wear-resisting property of tread rubber
CN104497371A (en) * 2014-11-27 2015-04-08 山东永泰化工有限公司 Radial tire belt compound for forklift trucks with carrying capacity of 4.8t, and preparation method thereof
CN104672530A (en) * 2013-11-29 2015-06-03 招远市东晟橡胶制品有限公司 Rubber composition for tire shoulder pad
CN104441302B (en) * 2014-11-14 2016-11-30 青岛科技大学 A kind of constant temperature compounding process of the silane coupled reaction of white carbon formula
CN106633226A (en) * 2016-06-24 2017-05-10 中国化工集团曙光橡胶工业研究设计院有限公司 Airplane radial tire shoulder wedge with low heat generation and high elasticity properties
CN106938592A (en) * 2017-04-24 2017-07-11 江苏通用科技股份有限公司 Reinforced tire flap Rotating fields
CN113024901A (en) * 2021-04-08 2021-06-25 正新橡胶（中国）有限公司 High-thermal-conductivity rubber composition used as shoulder wedge and tire
CN114316385A (en) * 2021-12-23 2022-04-12 赛轮(沈阳)轮胎有限公司 Method for stabilizing shear rate of final rubber
CN115124642A (en) * 2022-07-07 2022-09-30 株洲时代新材料科技股份有限公司 Modified telechelic liquid rubber and preparation method thereof, wide-temperature-range low-heat-generation controllable viscosity rubber and preparation method thereof
CN116554560A (en) * 2023-06-27 2023-08-08 河北世派轮胎有限公司 Inflation-free tire and preparation method thereof

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CN101434716A (en) * 2007-11-16 2009-05-20 四川轮胎橡胶（集团）股份有限公司 Semi-steel wire radial tire undertread calendering sizing compound
CN102105519A (en) * 2008-08-01 2011-06-22 米其林技术公司 Process for manufacturing a self-sealing composition

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JP4230859B2 (en) * 2003-08-29 2009-02-25 株式会社ブリヂストン Rubber composition for steel coating
WO2006077649A1 (en) * 2005-01-24 2006-07-27 Shiraishi Kogyo Kaisha Ltd. Modified calcium carbonate containing rubber compositions
CN101117418A (en) * 2006-07-31 2008-02-06 日立电线株式会社 Halogen-free fire-proof resin composition
CN101434716A (en) * 2007-11-16 2009-05-20 四川轮胎橡胶（集团）股份有限公司 Semi-steel wire radial tire undertread calendering sizing compound
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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103012897A (en) * 2012-12-23 2013-04-03 北京化工大学 Method for adding high-sulfur-content rubber compound to improve wear-resisting property of tread rubber
CN104672530A (en) * 2013-11-29 2015-06-03 招远市东晟橡胶制品有限公司 Rubber composition for tire shoulder pad
CN104441302B (en) * 2014-11-14 2016-11-30 青岛科技大学 A kind of constant temperature compounding process of the silane coupled reaction of white carbon formula
CN104497371A (en) * 2014-11-27 2015-04-08 山东永泰化工有限公司 Radial tire belt compound for forklift trucks with carrying capacity of 4.8t, and preparation method thereof
CN106633226A (en) * 2016-06-24 2017-05-10 中国化工集团曙光橡胶工业研究设计院有限公司 Airplane radial tire shoulder wedge with low heat generation and high elasticity properties
CN106938592A (en) * 2017-04-24 2017-07-11 江苏通用科技股份有限公司 Reinforced tire flap Rotating fields
CN113024901A (en) * 2021-04-08 2021-06-25 正新橡胶（中国）有限公司 High-thermal-conductivity rubber composition used as shoulder wedge and tire
CN114316385A (en) * 2021-12-23 2022-04-12 赛轮(沈阳)轮胎有限公司 Method for stabilizing shear rate of final rubber
CN115124642A (en) * 2022-07-07 2022-09-30 株洲时代新材料科技股份有限公司 Modified telechelic liquid rubber and preparation method thereof, wide-temperature-range low-heat-generation controllable viscosity rubber and preparation method thereof
CN115124642B (en) * 2022-07-07 2024-03-29 株洲时代新材料科技股份有限公司 Modified telechelic liquid rubber and preparation method thereof, wide-temperature-range low-heat-generation controllable viscosity rubber and preparation method thereof
CN116554560A (en) * 2023-06-27 2023-08-08 河北世派轮胎有限公司 Inflation-free tire and preparation method thereof

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