CN102690447A - Ageing-resistant tire belt rubber composition - Google Patents
Ageing-resistant tire belt rubber composition Download PDFInfo
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- CN102690447A CN102690447A CN2012102072895A CN201210207289A CN102690447A CN 102690447 A CN102690447 A CN 102690447A CN 2012102072895 A CN2012102072895 A CN 2012102072895A CN 201210207289 A CN201210207289 A CN 201210207289A CN 102690447 A CN102690447 A CN 102690447A
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Abstract
The invention relates to the technical field of rubber, and in particular relates to an ageing-resistant tire belt rubber composition. Based on 100 parts by weight of natural rubber, the ageing-resistant tire belt rubber composition also contains 40-50 parts of carbon black, 5-15 parts of white carbon black, 6-10 parts of zinc oxide, 1.0-2.5 parts of age resister 4020, 1.0-3.0 parts of binding agent B-20-S, 1.0-3.0 parts of binding agent HMT (Hexamethylenetetramine), 0.5-1.5 parts of cobalt decanoate, 1.0-4.0 parts of zinc borate, 4.0-7.0 parts of insoluble sulfur, 1.0-2.0 parts of vulcanization accelerator and 0.2 part of scorch retarder CTP (Cytidine Triphosphate). The ageing resistance of a belt rubber material is improved by using the zinc borate. The zinc borate is a multifunctional boron-containing fire retardant which is capable of generating a glassy film after being heated and is coated on a polymer to play roles of insulating heat and blocking oxygen and particularly increasing the binding power between a steel wire and the rubber under various ageing conditions and prolonging the service life of a tire.
Description
Technical field
The present invention relates to the rubber technology field, specifically a kind of ageing-resistant tire belt rubber combination.
Background technology
As everyone knows, along with market competition is fierce day by day, the human consumer is increasingly high to the specification of quality of tire, and high speed, the endurance quality of improving tire become extremely important.Tire belt has born 60%～75% of the whole internal stress of tire, the intensity of belt sizing material, very property and steel wire bond properties and in the work-ing life that is directly connected to tire through the ageing-resistant performance after going for a long time.Present existing technology adopts mostly adds common anti-aging agent (for example 4020, RD etc.) and improves the sizing material ageing-resistant performance, but DeGrain especially to the protection of aging back steel wire and rubber adhesion performance, does not play very big effect.
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 ageing-resistant tire belt rubber combination is provided; Improve belt sizing material ageing-resistant performance, especially improved steel wire and rubber adhesion power under the various aging conditions, the work-ing life of having improved tire.
The technical scheme that the present invention solves the problems of the technologies described above employing is: a kind of ageing-resistant tire belt rubber combination is a benchmark with 100 parts by weight of natural rubber, also comprises
40～50 weight part carbon blacks, 5～15 weight part WHITE CARBON BLACKs, 6～10 part by weight of zinc oxide; 1.0～2.5 weight part anti-aging agent 4020,1.0～3.0 weight part tackiness agent B-20-S, 1.0～3.0 weight part tackiness agent HMT; 0.5～1.5 weight part certain herbaceous plants with big flowers acid cobalt, 1.0～4.0 zinc borate weight parts, 4.0～7.0 weight part insoluble sulfurs; 1.0～2.0 weight part vulcanization accelerators, 0.2 weight part anti-scorching agent CTP.
Said vulcanization accelerator is that accelerator D Z and vulcanization accelerator NS are shared, and accelerator D Z is 0.5～1 weight part, and vulcanization accelerator NS is 0.5～1 weight part.
The invention has the beneficial effects as follows, adopt zinc borate to improve the ageing-resistant performance of belt sizing material.Zinc borate is a kind of multifunctional fire retardant of boracic; After being heated, can produce a kind of vitreous film, be covered on the polymkeric substance, play the effect of heat insulation resistance oxygen; Especially steel wire and rubber adhesion power under the various aging conditions have been improved, the work-ing life of having improved tire.
Embodiment
Below in conjunction with embodiment the present invention is done further description:
The present invention adopts following materials based on weight to process: natural gum 100, carbon black 40～50, WHITE CARBON BLACK 5～15; Zinc oxide 6～10, anti-aging agent 4,020 1.0～2.5, tackiness agent B-20-S 1.0～3.0; Tackiness agent HMT 1.0～3.0, certain herbaceous plants with big flowers acid cobalt 0.5～1.5, zinc borate 1.0～4.0; Insoluble sulfur 4.0～7.0, vulcanization accelerator 1.0～2.0, anti-scorching agent CTP 0.2.
As preferably, described zinc borate consumption is preferably 1～4 part.
As preferably, described vulcanization accelerator is that accelerator D Z and vulcanization accelerator NS are shared, and DZ is 0.5～1 part, and NS is 0.5～1 part.
The preferred HDOT20 of insoluble sulfur.
Adopt feed composition of the present invention and content can prepare by existing routine techniques, concrete steps are:
First section mixing: natural gum, carbon black, WHITE CARBON BLACK, zinc oxide, anti-aging agent 4020, tackiness agent B-20-S, certain herbaceous plants with big flowers acid cobalt, zinc borate are added among the Banbury mixer GK400 simultaneously; Pressed bolt 30 seconds; Carry and press behind the bolt bolt to 120 ℃～130 ℃ to carry bolt; Press bolt to 160 ℃ binder removal once more, thin logical twice time sheet in the mill.
Second section mixing: add one section rubber unvulcanizate, press bolt to keep 35 seconds, pressed bolt again 35 seconds after carrying bolt, press bolt to 160 ℃ binder removal, thin logical twice time sheet in the mill after carrying bolt.
Three-stage mixing: add two-stage mixing glue, press bolt to keep 35 seconds, pressed bolt again 35 seconds after carrying bolt, press bolt to 155 ℃ binder removal, thin logical twice time sheet in the mill after carrying bolt.
The 4th section mixing: add three-stage mixing glue and insoluble sulfur, promotor, scorch retarder, HMT, press bolt to keep 30 seconds, press bolt to 105 ℃ binder removal, thin logical twice time sheet in the mill after carrying bolt.
The invention has the beneficial effects as follows the obvious ageing-resistant ability that improves the tire belt layer sizing, guaranteed that still the have higher steel wire of sizing material under various aging conditions extract power out, can effectively improve the endurance quality of tire, improve the work-ing life of tire.
In order to confirm the safety of effect of the present invention, prescription and each item performance index of the tire belt of the present invention and prior art are contrasted, the result sees table 1 and table 2:
Can find out that from table 1,2 the belt sizing material that uses the present invention's preparation is than Comparative Examples, ageing-resistant performance obviously improves.Be mainly reflected in the Comparative Examples, the aging back of tensile strength has reduced 5.0MPa before aging, and the aging back of elongation rate of tensile failure has reduced by 81% before aging, and the aging back of steel wire extraction power has reduced 445KN/m before aging; The aging back of invention prescription tensile strength has only reduced 2.8MPa before aging, the aging back of elongation rate of tensile failure has only reduced by 42% before aging, and the aging back of steel wire extraction power has only reduced 291KN/m before aging.Simultaneously, 140 ℃ of steam agings after 3 days steel wire extract power out also than the obvious raising of Comparative Examples.This shows, use prescription of the present invention can obviously improve the ageing-resistant ability of tire belt layer sizing, improve aging back steel wire and extract power out, improve the work-ing life of tire.
Table 1: (each material content unit: weight part)
| Starting material | Comparative Examples | The present invention |
| Tree elastomer | 100.0 | 100.0 |
| N375 | 42.0 | 42.0 |
| White carbon black | 12.0 | 12.0 |
| Zinc oxide | 8.0 | 8.0 |
| B-20-S | 1.5 | 1.5 |
| Zinc borate | ? | 2.0 |
| Anti-aging agent 4020 | 2.0 | 2.0 |
| Certain herbaceous plants with big flowers acid cobalt | 1.0 | 1.0 |
| HMT | 1.5 | 1.5 |
| HDOT20 | 6.0 | 6.0 |
| Anti-scorching agent CTP | 0.2 | 0.2 |
| Accelerator NS | 0.6 | 0.6 |
| Accelerator DZ | 0.6 | 0.6 |
Table 2: physical and mechanical properties
Embodiment (each material content unit: weight part)
| Starting material | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Tree elastomer | 100.0 | 100.0 | 100.0 | 100.0 |
| N375 | 40.0 | 45.0 | 48.0 | 50.0 |
| White carbon black | 15.0 | 10.0 | 12.0 | 5.0 |
| Zinc oxide | 6.0 | 8.0 | 9.0 | 10.0 |
| B-20-S | 1.0 | 1.5 | 2.0 | 3.0 |
| Zinc borate | 1.0 | 2.0 | 3.0 | 4.0 |
| Anti-aging agent 4020 | 1.0 | 2.0 | 1.5 | 2.5 |
| Certain herbaceous plants with big flowers acid cobalt | 1.0 | 1.0 | 1.5 | 0.5 |
| HMT | 1.0 | 1.5 | 2.0 | 3.0 |
| HDOT20 | 5.0 | 6.0 | 4.0 | 7.0 |
| Anti-scorching agent CTP | 0.2 | 0.2 | 0.2 | 0.2 |
| Accelerator NS | 0.6 | 1.0 | 0.8 | 0.5 |
| Accelerator DZ | 0.6 | 0.5 | 0.7 | 1.0 |
The physical and mechanical properties of embodiment (150 ℃, 30 minutes) is as follows:
Claims (2)
1. ageing-resistant tire belt rubber combination, it is characterized in that: with 100 parts by weight of natural rubber is benchmark, also comprises
40～50 weight part carbon blacks, 5～15 weight part WHITE CARBON BLACKs, 6～10 part by weight of zinc oxide; 1.0～2.5 weight part anti-aging agent 4020,1.0～3.0 weight part tackiness agent B-20-S, 1.0～3.0 weight part tackiness agent HMT; 0.5～1.5 weight part certain herbaceous plants with big flowers acid cobalt, 1.0～4.0 zinc borate weight parts, 4.0～7.0 weight part insoluble sulfurs; 1.0～2.0 weight part vulcanization accelerators, 0.2 weight part anti-scorching agent CTP.
2. according to the said anti-ageing-resistant tire belt rubber combination of claim 1; It is characterized in that said said vulcanization accelerator is that accelerator D Z and vulcanization accelerator NS are shared; Accelerator D Z is 0.5～1 weight part, and vulcanization accelerator NS is 0.5～1 weight part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210207289.5A CN102690447B (en) | 2012-06-21 | 2012-06-21 | Ageing-resistant tire belt rubber composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210207289.5A CN102690447B (en) | 2012-06-21 | 2012-06-21 | Ageing-resistant tire belt rubber composition |
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| Publication Number | Publication Date |
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| CN102690447A true CN102690447A (en) | 2012-09-26 |
| CN102690447B CN102690447B (en) | 2014-03-12 |
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| CN201210207289.5A Active CN102690447B (en) | 2012-06-21 | 2012-06-21 | Ageing-resistant tire belt rubber composition |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103012870A (en) * | 2012-12-20 | 2013-04-03 | 青岛科技大学 | Modified carcass ply compound of all-steel radial tire |
| CN104356440A (en) * | 2014-11-11 | 2015-02-18 | 沈阳化工大学 | Glue adhered with TBR tire carcass steel wire and preparation method |
| CN108314806A (en) * | 2018-02-06 | 2018-07-24 | 三角轮胎股份有限公司 | The anti-rubber composition to revert for tire belt |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101434718A (en) * | 2008-12-15 | 2009-05-20 | 昊华南方(桂林)橡胶有限责任公司 | Giant engineering machinery tyre repair adhesive and preparation thereof |
| CN102199314A (en) * | 2011-03-16 | 2011-09-28 | 杭州中策橡胶有限公司 | Tire apex composition for improving bond system and its preparation method and application |
| CN102476464A (en) * | 2010-11-24 | 2012-05-30 | 软控股份有限公司 | Method for retreading a tire using a precured annular tread |
-
2012
- 2012-06-21 CN CN201210207289.5A patent/CN102690447B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101434718A (en) * | 2008-12-15 | 2009-05-20 | 昊华南方(桂林)橡胶有限责任公司 | Giant engineering machinery tyre repair adhesive and preparation thereof |
| CN102476464A (en) * | 2010-11-24 | 2012-05-30 | 软控股份有限公司 | Method for retreading a tire using a precured annular tread |
| CN102199314A (en) * | 2011-03-16 | 2011-09-28 | 杭州中策橡胶有限公司 | Tire apex composition for improving bond system and its preparation method and application |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103012870A (en) * | 2012-12-20 | 2013-04-03 | 青岛科技大学 | Modified carcass ply compound of all-steel radial tire |
| CN103012870B (en) * | 2012-12-20 | 2014-11-26 | 青岛科技大学 | Modified carcass ply compound of all-steel radial tire |
| CN104356440A (en) * | 2014-11-11 | 2015-02-18 | 沈阳化工大学 | Glue adhered with TBR tire carcass steel wire and preparation method |
| CN108314806A (en) * | 2018-02-06 | 2018-07-24 | 三角轮胎股份有限公司 | The anti-rubber composition to revert for tire belt |
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| Publication number | Publication date |
|---|---|
| CN102690447B (en) | 2014-03-12 |
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