CN102634082A - Tire tread base rubber composition and preparation method - Google Patents

Tire tread base rubber composition and preparation method Download PDF

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Publication number
CN102634082A
CN102634082A CN2012101315419A CN201210131541A CN102634082A CN 102634082 A CN102634082 A CN 102634082A CN 2012101315419 A CN2012101315419 A CN 2012101315419A CN 201210131541 A CN201210131541 A CN 201210131541A CN 102634082 A CN102634082 A CN 102634082A
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parts
mixing
seconds
tire tread
rubber
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CN102634082B (en
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丁玉华
单国玲
于志勇
于海涛
王培滨
崔轶
韩菁
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Triangle Tyre Co Ltd
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Triangle Tyre Co Ltd
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Abstract

The invention relates to the technical field of rubber, in particular relates to a tire tread base rubber composition and a preparation method. The tire tread base rubber composition is characterized by taking 100 parts of natural rubber as reference, as well as comprising 5-10 parts of liquid butadiene rubber, 40-50 parts of carbon black, 5-15 parts of white carbon black, 5-6 parts of zinc oxide, 1-3 parts of stearic acid, 1-3 parts of silane coupling agent, 1-3 parts of N-(1, 3-dimethylbutyl)-N'-phenyl-p-phenylenediamine anti-aging agent, 1-2 parts of 2, 2, 4-trimethyl-1, 2-dihydroquinoline polymer anti-aging agent, 1-3 parts of sulphur, 1.0-1.5 parts of vulcanization accelerator and 0.1-0.3 parts of anti-scorching agent in part by weight. In the tire tread base rubber composition, the heat production property and the hysteresis loss of tire tread base rubber can be obviously reduced, the tire hanging problem is solved, and the tire use property is enhanced.

Description

Tire tread bottom rubber combination and preparation method
Technical field
The present invention relates to the rubber technology field, specifically a kind of tire tread bottom rubber combination and preparation method.
Background technology
As everyone knows; That heavy load radial tire has is wear-resisting, fuel-economizing, work-ing life advantage such as height; 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 crown is an outstanding problem in the present heavy load radial tire use, and it is relevant with the thermogenesis performance of taking turns the crown part sizing material to be preced with 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 tread bottom rubber combination and preparation method are provided; Can obviously reduce tire tread layer glue thermogenesis performance and hysteresis loss, reduce tire and use the empty problem of hat, 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 tread bottom 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, 40～50 parts of carbon blacks, 5～15 parts of WHITE CARBON BLACKs, 5～6 parts of zinc oxide, 1～3 part of Triple Pressed Stearic Acid, 1～3 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 material, 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 liquid cis-butadiene cement.
The preferred N375 of carbon black, N660 carbon black.
Silica-based tetrasulfide of the preferred triethoxy of silane coupling agent and inertia dispersion agent were by weight 1: 1 mixture.
The preferred N-tertiary butyl of vulcanization accelerator-2-[4-morpholinodithio sulphonamide.
The preferred insoluble sulfur IS-7020 of sulphur.
The preferred N-cyclohexylthiophthalimide of scorch retarder product.
A kind of method of tire tread bottom rubber comprises the following steps, its component ratio by weight:
Figure 2012101315419100002DEST_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 40～50 parts of carbon blacks, 5～15 parts of WHITE CARBON BLACKs, 5～6 parts of zinc oxide, 1～3 part of Triple Pressed Stearic Acid, 1～3 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 2012101315419100002DEST_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 2012101315419100002DEST_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 2012101315419100002DEST_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 2012101315419100002DEST_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 ℃; Binder removal is carried out in mixing end, can obtain tread base glue finished product of the present invention.
The invention has the beneficial effects as follows, can obviously reduce tire tread layer glue thermogenesis performance and hysteresis loss, reduce tire and use the empty problem of hat, 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 tread base glue prescription, tree elastomer is comprehensive better, has technology viscosity preferably.Tree elastomer is 10#, the 20# standard rubbers that Thailand produces.
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, and it is big to have viscosity; Viscosity temperature characteristic is good, and low temperature viscosity is high, and it is lasting not do, and is 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 tread bottom rubber, comprise the following steps, its component ratio by weight:
Figure 117670DEST_PATH_IMAGE002
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 40～50 parts of carbon blacks, 5～15 parts of WHITE CARBON BLACKs, 5～6 parts of zinc oxide, 1～3 part of Triple Pressed Stearic Acid, 1～3 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 547514DEST_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 789140DEST_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;
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 19319DEST_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 ℃; Binder removal is carried out in mixing end, can obtain tread base glue 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 20 30 20 20
N660 30 20 25 20
WHITE CARBON BLACK ? 5 10 15
Silane coupling agent ? 1.0 2.0 3.0
Zinc oxide 4.0 5.0 6.0 5.0
Triple Pressed Stearic Acid 2.0 1.0 2.0 3.0
The anti-aging agent substance A 1.5 1.5 1.0 2.5
The anti-aging agent substance B 1.5 1.0 1.5 2.0
Insoluble sulfur 1.5 1.2 1.3 2.5
Vulcanization accelerator NS 1.2 1.0 1.5 1.5
Anti-scorching agent CTP 0.2 0.1 0.2 0.3
Table 2
? Original formulation Embodiment 1 Embodiment 2 Embodiment 3
Shore a hardness/degree 62 63 65 67
100% stress at definite elongation/MPa 2.2 2.4 2.5 2.6
300% stress at definite elongation/MPa 12.0 13.2 14.0 14.7
Tensile strength/MPa 26.0 26.0 26.5 27.1
Tensile yield/% 512 535 520 499
Tear strength/KN/m 101 107 111 115
60 ℃ of hysteresis loss/Tan δ 0.150 0.135 0.128 0.120
Rebound resilience/% 45 52 53 55
Tyres durable/hour 77 85 85 92
Can find out from the prescription example, patent formulation than original formulation hardness modulus raisings-reductions wheel crown part use deformation 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 tread bottom 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, 40～50 parts of carbon blacks, 5～15 parts of WHITE CARBON BLACKs, 5～6 parts of zinc oxide, 1～3 part of Triple Pressed Stearic Acid, 1～3 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 material, 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 tread bottom of claim 1 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 tread bottom of claim 1 rubber combination, it is characterized in that said carbon black is N375, N660 carbon black.
4. according to the said tire tread bottom of claim 1 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 tread bottom of claim 1 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 tread bottom of claim 1 rubber combination, it is characterized in that said sulphur is insoluble sulfur IS-7020.
7. according to the said tire tread bottom of claim 1 rubber combination, it is characterized in that said scorch retarder is a N-cyclohexylthiophthalimide product.
8. method of producing the said tire tread bottom of claim 1 rubber is characterized in that: comprise the following steps, its component ratio by weight,
Figure 2012101315419100001DEST_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 40～50 parts of carbon blacks, 5～15 parts of WHITE CARBON BLACKs, 5～6 parts of zinc oxide, 1～3 part of Triple Pressed Stearic Acid, 1～3 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 2012101315419100001DEST_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 2012101315419100001DEST_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 2012101315419100001DEST_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;
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 tread base glue finished product of the present invention.
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104530499A (en) * 2014-12-22 2015-04-22 陕西延长石油集团橡胶有限公司 All-steel load radial tire tread base rubber material and preparation method thereof
CN108017814A (en) * 2016-11-01 2018-05-11 中国石油化工股份有限公司 Rubber composition and vulcanization rubber and its preparation method and application
CN108129719A (en) * 2018-02-06 2018-06-08 三角轮胎股份有限公司 Rubber composition for tire tread and preparation method thereof
CN108945131A (en) * 2018-09-11 2018-12-07 浙江元创橡胶履带有限公司 High speed rubber belt track and high speed rubber belt track decorative pattern side rubber
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
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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CN101117418A (en) * 2006-07-31 2008-02-06 日立电线株式会社 Halogen-free fire-proof resin composition
CN101381482A (en) * 2008-10-09 2009-03-11 江苏通用科技股份有限公司 All-steel radial ply tyre tread base and preparation method thereof
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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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005075888A (en) * 2003-08-29 2005-03-24 Bridgestone Corp 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
CN102105519A (en) * 2008-08-01 2011-06-22 米其林技术公司 Process for manufacturing a self-sealing composition
CN101381482A (en) * 2008-10-09 2009-03-11 江苏通用科技股份有限公司 All-steel radial ply tyre tread base and preparation method thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104530499A (en) * 2014-12-22 2015-04-22 陕西延长石油集团橡胶有限公司 All-steel load radial tire tread base rubber material and preparation method thereof
CN108017814A (en) * 2016-11-01 2018-05-11 中国石油化工股份有限公司 Rubber composition and vulcanization rubber and its preparation method and application
CN108017814B (en) * 2016-11-01 2021-04-13 中国石油化工股份有限公司 Rubber composition, vulcanized rubber, and preparation method and application thereof
CN108129719A (en) * 2018-02-06 2018-06-08 三角轮胎股份有限公司 Rubber composition for tire tread and preparation method thereof
CN108945131A (en) * 2018-09-11 2018-12-07 浙江元创橡胶履带有限公司 High speed rubber belt track and high speed rubber belt track decorative pattern side rubber
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
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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