CN101775175B - Tyre sulfurized capsules prepared from nano silicon-based oxide and preparation process - Google Patents
Tyre sulfurized capsules prepared from nano silicon-based oxide and preparation process Download PDFInfo
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- CN101775175B CN101775175B CN2009102564629A CN200910256462A CN101775175B CN 101775175 B CN101775175 B CN 101775175B CN 2009102564629 A CN2009102564629 A CN 2009102564629A CN 200910256462 A CN200910256462 A CN 200910256462A CN 101775175 B CN101775175 B CN 101775175B
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Abstract
The invention relates to tyre sulfurized capsules prepared from nano silicon-based oxide and a preparation process. The tyre sulfurized capsules comprise the following raw materials in part by weight: 90 to 100 parts of butyl rubber, 10 to 15 parts of activating agent, 60 to 68 parts of filling agent, 6 to 8 parts of softening agent, 2 to 3 parts of processing aid, 9 to 10 parts of vulcanizing agent and 8 to 10 parts of nano silicon-based oxide, wherein the activating agent is chloroprene rubber; the filling agent is carbon black; the softening agent is castor oil; the processing aid is stearic acid; the vulcanizing agent is resin; and the nano silicon-based oxide is modified white carbon black. The production process is improved by increasing secondary banburying after primary banburying, namely mixing materials, primary banburying, secondary banburying, rubber filtering, vulcanizing agent adding, molding, vulcanizing and polishing. The technology of the invention modifies the conventional tyre capsule production materials, simultaneously improves the heat and ageing resistance of the rubber material according to the characteristics of the modified rubber materials under the condition of keeping the physical and mechanical properties of the rubber materials unchangeable, and realizes lower permanent deformation of the rubber materials, thereby prolonging the service life of the tyre sulfurized capsules by 20 to 30 percent.
Description
Technical field
The present invention relates to a kind of tire curing bladder and the preparation technology who utilizes nano silicon-based oxide to make in sulfurizing rubber tyre capsule and the preparation technology field.
Background technology
Tire curing bladder is as necessary finished proprietary item in the tire production,, be under the heat condition more than 200 ℃, take on the work of the soft mold that tire production makes, and the use that need under utmost point exacting terms, move in circles.Preparation employed starting material of tire curing bladder and weight part are generally at present: butyl rubber 95, X 050 5, weighting agent (N330 type carbon black) 50-58, tenderizer (Viscotrol C) 5-6, processing aid (Triple Pressed Stearic Acid etc.) 8-10, vulcanizing agent (resin) 8-10.Preparation technology mainly comprises batching, and------filter glue------polish to add vulcanizing agent by moulding---sulfuration---in one section banburying.In recent years, along with popularizing rapidly of China's radial tyre, high performance tire manufacturing has also proposed requirements at the higher level to the standard of tire curing bladder.In order to produce high-performance, high-quality, high heat conduction, long-life tire curing bladder; Relevant unit has carried out a large amount of research; Research direction mainly around the material of weighting agent (being nano grade carbon black), still facts have proved that the variation of this material can not change the performance of sizing material.
Summary of the invention
The object of the invention is exactly the deficiency to prior art, proposes a kind of high-performance, high-quality, high heat conduction, long-life tire curing bladder and preparation technology who utilizes nano silicon-based oxide to make of producing.Its target is on the constant condition of product physical and mechanical properties index, utilizes the nano silicon-based oxide modification, improves the heat-resistant aging of sizing material, realizes the less tension set property of sizing material, thereby improves the work-ing life of tire curing bladder.
To achieve these goals, the content that the present invention studied comprises:
Material of main part is viton---the butyl rubber with good heat resistance ability.Its good thermotolerance is the preferred material that capsule is made, but its high saturation of while is also to having brought the difficulty in the processing.
Find that under study for action nano silicon-based oxide (WHITE CARBON BLACK) has performances such as low, the thermal ageing property of heating, stretchiness and mooney viscosity and is superior to carbon black; But its viscosity is higher; Particle diameter is thinner, and surface-area is bigger, and is dispersed relatively poor; Cause quite difficulty of processing, can not show a candle to carbon black in the range of application of rubber materials.On the basis of studying repeatedly, test, analyzing, best starting material component is proposed for this reason:
The weight part proportioning of the raw material that constitutes is: butyl rubber 90-100, promoting agent 10-15, weighting agent 60-68, tenderizer 6-8; Processing aid 2-3, vulcanizing agent 9-10, nano silicon-based oxide 8-10; Wherein promoting agent is an X 050, and weighting agent is a carbon black, and tenderizer is a Viscotrol C; Processing aid is a Triple Pressed Stearic Acid, and vulcanizing agent is a resin, and nano silicon-based oxide is the WHITE CARBON BLACK of handling through modification.
Described weighting agent is made up of the N330 type carbon black of 33-35 weight part and the acetylene carbon black of 27-33 weight part.
On the basis of accomplishing the above-mentioned raw materials configuration; For resolving the scattering problem of nano silicon-based oxide in rubber; Improve: after one section banburying, increased by two sections banburyings, i.e. batching---one section banburying---two sections banburyings---filter glue---interpolation vulcanizing agent---moulding---sulfuration---polishing to original production technique.
Through studying repeatedly and testing, we draw as drawing a conclusion:
1, how to confirm that the consumption of nano silicon-based oxide also is a key point in the prescription.Addition is little, the having little significance of use, and the big back of addition produces certain negative impact to the rerum natura of sizing material.The purpose that adds nano silicon-based oxide promptly is will guarantee under the constant basically condition of physical and mechanical properties, improves the thermotolerance of its sizing material and the dynamic property in the use.For this reason, we optimize rational addition through formula test repeatedly, and this conclusion is pilot scale and product use-testing through the workshop, has obtained good checking.
2, in existing technology, powder feeds intake with other macrobead powders, causes nano silicon-based oxide directly to combine with sizing material, can not give full play of its excellent properties.And our technical process is when mixing beginning, in rubber, adds nano silicon-based oxide in advance, guarantees that at first itself and rubber have good the combination, and next has increased secondary banburying processing.Through the sizing material fractograph analysis after the secondary banburying processing is seen that can satisfy manufacturing technique requirent, dispersion effect is desirable.
Technology of the present invention is produced material to existing tyre capsule and is carried out modification; Simultaneously according to the sizing material characteristics after the modification; Keeping under the constant condition of sizing material physical and mechanical properties index; Improve its heat-resistant aging, realize the less tension set property of sizing material, thereby improve the work-ing life of tire curing bladder.Specifically be exactly to adopt nano silicon-based oxide (WHITE CARBON BLACK) to change the sizing material index that traditional material can't change, make sizing material under identical hardness, find best intensity level, extending force value, stretch power value and less TIR aging value, deformation values surely.
Useful result after the improvement
In prescription, add nano silicon-based oxide, i.e. nano material, we have realized three breakthroughs:
1. solved adding nano silicon-based oxide sizing material and increased firmly, the problem that elongation descends;
2. captured and caused the viscosity increase after material adds, the difficult problem of disperseing to cause the decline of sizing material dispersity of material.
3. on the basis that guarantees the physical and mechanical properties that sizing material is good, the thermal ageing property of sizing material and the permanent index of being out of shape are improved and improve, and the mooney viscosity of sizing material is constant basically.
| Heat aging performance velocity of variation % 180 ℃ * 48 hours | Permanent coefficient % stretches | 125 ℃ of (1+8) ML of sizing material mooney viscosity coefficient | |
| Former index | 20-25 | 32-35 | 65-70 |
| Current index | 15-20 | 27-30 | 65 |
| Optimized proportion | ↓20 | ↓10-15 | ↓5％ |
Because These parameters is in the optimization that keeps on the good physical and mechanical properties basis of sizing material, therefore, making has had raising by a relatively large margin in work-ing life of tire.Verify that through the actual feedback data of using can improve 20%-30% capsular work-ing life.
Embodiment
1, material component design following table 1.
2, technical process improves
The starting material incoming inspection---(rubber at first mixes with nano silicon-based oxide batching; Then other auxiliary materials outside the vulcanizing agent are mixed)---------filter glue------vulcanizing agent is polished, and checks at last and packs by moulding---sulfuration---to carry out secondary banburying (after parking for some time once more) in one section banburying (parking for some time).
Certainly utilize the prescription of invention to combine existing preparation technology also can make curing bag, just performance perameter is not as good as the effect of above-mentioned improvement technology.
After in the tire curing bladder prescription, adding nano silicon-based oxide; It is good that the physical and mechanical properties of sizing material keeps; Dynamic property in heat-resistant aging and the use highlights excellence; Broken through present tire curing bladder formulating of recipe and the product bottleneck problem in using, made the use properties of tire curing bladder product that the lifting of matter arranged.The application of nano silicon-based oxide in tire curing bladder is the exploitation of innovation of nano material in rubber item, will will produce great pushing effect to the development of rubber item industry.
Table 1
Claims (2)
1. technology of utilizing nano silicon-based oxide manufacture of tires curing bag, preparation technology comprises batching, and------filter glue------polish, and it is characterized in that: the composition of raw material is made up of butyl rubber, promoting agent, weighting agent, tenderizer, processing aid, vulcanizing agent and nano silicon-based oxide to add vulcanizing agent by moulding---sulfuration---in one section banburying; The weight part proportioning of each composition is: butyl rubber 90-100, promoting agent 10-15, weighting agent 60-68; Tenderizer 6-8, processing aid 2-3, vulcanizing agent 9-10; Nano silicon-based oxide 8-10, wherein promoting agent is an X 050, weighting agent is a carbon black; Tenderizer is a Viscotrol C; Processing aid is a Triple Pressed Stearic Acid, and vulcanizing agent is a resin, and nano silicon-based oxide is the WHITE CARBON BLACK of handling through modification; Two sections banburyings after one section banburying, have been increased; Promptly batching---------------filter glue is polished to add vulcanizing agent in two sections banburyings in one section banburying by moulding---sulfuration---; Described blending process is: butyl rubber at first mixes with nano silicon-based oxide, then with vulcanizing agent outside other auxiliary materials mix.
2. the technology of utilizing nano silicon-based oxide manufacture of tires curing bag according to claim 1 is characterized in that: described weighting agent is made up of the N330 type carbon black of 33-35 weight part and the acetylene carbon black of 27-33 weight part.
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| CN2009102564629A CN101775175B (en) | 2009-12-23 | 2009-12-23 | Tyre sulfurized capsules prepared from nano silicon-based oxide and preparation process |
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| CN2009102564629A CN101775175B (en) | 2009-12-23 | 2009-12-23 | Tyre sulfurized capsules prepared from nano silicon-based oxide and preparation process |
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| CN101775175A CN101775175A (en) | 2010-07-14 |
| CN101775175B true CN101775175B (en) | 2012-11-07 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103481628B (en) * | 2013-09-22 | 2015-10-28 | 苏州市湘园特种精细化工有限公司 | A kind of processing technology of insulation sheet rubber |
| CN105647038B (en) * | 2016-03-09 | 2018-05-01 | 台州骊威环保科技有限公司 | A kind of preparation method of high-intensity tire curing bag |
| CN105837963B (en) * | 2016-04-22 | 2017-12-15 | 岳阳瑞森达橡塑工业有限公司 | A kind of butyl rubber composite material applied to curing bag |
| CN106832873A (en) * | 2017-01-23 | 2017-06-13 | 埃维柯塑料科技（安徽）有限公司 | A kind of high-strength corrosion-resisting plastic stop valve valve element |
| CN108909373A (en) * | 2018-07-20 | 2018-11-30 | 滁州市玉林聚氨酯有限公司 | A kind of abrasion resistant polyurethane tire and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1793210A (en) * | 2005-12-31 | 2006-06-28 | 山东西水集团永一橡胶有限公司 | High thermal conductive tyre sulfurized capsule |
| CN101016393A (en) * | 2006-12-15 | 2007-08-15 | 天津开发区元光纳米科技有限公司 | Method of preparing silicon based oxide/synthetic rubber composite material applied for vulcanization capsule |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1793210A (en) * | 2005-12-31 | 2006-06-28 | 山东西水集团永一橡胶有限公司 | High thermal conductive tyre sulfurized capsule |
| CN101016393A (en) * | 2006-12-15 | 2007-08-15 | 天津开发区元光纳米科技有限公司 | Method of preparing silicon based oxide/synthetic rubber composite material applied for vulcanization capsule |
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Address after: 257300 Shandong Dongying Shandong Guangrao Xishui industrial area Patentee after: Wing Yi Rubber Co., Ltd. Address before: 257336 Xishui Industrial Zone, Guangrao County, Dongying, Shandong Patentee before: Shandong Xishui Yongyi Rubber Co., Ltd. |