CN105254965A - Inner liner compound with air permeation resistance and low cost and for pneumatic tire - Google Patents
Inner liner compound with air permeation resistance and low cost and for pneumatic tire Download PDFInfo
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- CN105254965A CN105254965A CN201510675752.2A CN201510675752A CN105254965A CN 105254965 A CN105254965 A CN 105254965A CN 201510675752 A CN201510675752 A CN 201510675752A CN 105254965 A CN105254965 A CN 105254965A
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Abstract
The invention discloses an inner liner compound with air permeation resistance and low cost and for a pneumatic tire. The inner liner compound comprises 60-80 parts of brominated butyl rubber, 20-40 parts of natural rubber, 50-60 parts of carbon black, 0.5-2.5 parts of an accelerator, 15-25 parts of resin, 15-25 parts of modified reinforcing filler, 3-8 parts of zinc oxide, 0.5-2.5 parts of stearic acid, 0.5-1 part of sulfur and 5-11 parts of naphthenic oil. The modified reinforcing filler is innovatively used in the formula and the ratio of the brominated butyl rubber to the natural rubber is matched reasonably, so that the air permeation resistance and durability of the tire are improved and the rolling resistance is reduced while the production cost is reduced.
Description
Technical field
The invention belongs to doughnut field of material technology, be specifically related to a kind of pneumatic tyre resistance to ventilation property low cost air/tight layer rubber.
Background technology
Along with tire, especially tyres for passenger cars is to meridian, tubeless and flattening future development, more and more higher to the requirement of properties of rubber.Brominated butyl rubber (BIIR), with the resistance to air loss of excellence, binding property and ageing resistance and the advantage such as vulcanization rate is fast, is able to widespread use in car tubeless liner formula.
BIIR in the market price is relatively high, because of air/tight layer rubber this rubber of higher number, causes it to be the formula that cost is relatively high in each parts of tire, causes tire production cost relatively high.
Summary of the invention
For problems of the prior art, a kind of pneumatic tyre resistance to ventilation property low cost air/tight layer rubber that the object of the present invention is to provide, this formula novelty employs modification reinforced filling, and the ratio of simultaneously reasonably combined brominated butyl rubber and natural rubber, to reach while reduction production cost, improve the resistance to ventilation property of tire, improve tyres durable performance and reduce rolling resistance.
The technical scheme that the present invention takes is:
A kind of pneumatic tyre resistance to ventilation property low cost air/tight layer rubber, comprises brominated butyl rubber 60-80 part, natural rubber 20-40 part, carbon black 50-60 part, promotor 0.5-2.5 part, resin 15-25 part, modification reinforced filling 10-30 part, zinc oxide 3-8 part, stearic acid 0.5-2.5 part, sulphur 0.5-1 part, other component 5-11 part.
Further, described brominated butyl rubber 75 parts, natural rubber 25 parts, carbon black 55 parts, promotor 2 parts, resin 20 parts, modification reinforced filling 18 parts, 5 parts, zinc oxide, stearic acid 0.9 part, 0.8 part, sulphur, naphthenic oil 7 parts.
Further, described resin is one or more in alkylphenol formaldehyde resin, petroleum resin or hydrocarbon resin.
Further, what described modification reinforced filling was that adjuvant chemistry becomes divisional processing take light calcium carbonate as the matrix material that the surface of carrier has active group, described adjuvant chemistry composition is light calcium carbonate 80-100 part, lipid acid 1-3 part, the mixture of titanate coupling agent or paraffin 0.5-2 part composition.
Further, described promotor is sulfenamide type accelerators or thiazole accelerator.
Further, other component described is naphthenic oil.
Further, the preparation method of described modified filler comprises the steps:
(1) add in reactor by lipid acid, titanate coupling agent or auxiliary agent of paraffin chemical composition, raised temperature is 80 ± 10 DEG C, and pressure is normal pressure, and stirring reaction 15 ± 5min, is cooled to room temperature, takes out, barrelling;
(2) add in reactor by light calcium carbonate, raised temperature is 90 ± 10 DEG C, and the mixture that step (1) is obtained drops in this reactor, and pressure is normal pressure, stirring reaction 25 ± 5min, is cooled to 40 ± 10 DEG C, Purification by filtration, be cooled to room temperature, take out, packaging.
Further, the compounding process of its air/tight layer rubber sizing material comprises the following steps:
(1) one section mixing: mixingly carry out in Banbury mixer, adds the rubber mixing pressure floating weight 20-40s of brominated butyl rubber and natural rubber composition, carry stone roller, add little medicine, carbon black pressure floating weight 25-35s, carry stone roller, add other component pressure bolt 20-30s, carry stone roller, pressure floating weight 20-25s; Closed-smelting machine rotor rotating speed 30-55 rev/min; 130 DEG C of binder removals;
(2) after master batch Banbury mixer binder removal, sizing material by twin-screw extrusion tablet press compressing tablet, behind separant pond cool, build buttress;
(3) finished composition is mixing: mixingly carry out in Banbury mixer, and add one section of mixing rubber master batch, eventually refining medicine pressure floating weight 25-35s, carry stone roller, pressure floating weight 20-35s, carries stone roller, pressure floating weight 20-30s; Closed-smelting machine rotor rotating speed 20-30 rev/min; 100 DEG C of binder removals;
(4) after finished composition Banbury mixer binder removal, sizing material by each 3 times of twin-screw extrusion tablet press compressing tablet, on a mill until left and right cutting knife, behind separant pond cool, build buttress.
Modified filler brief introduction: multiple adjuvant chemistry process, the surface that take light calcium carbonate as carrier has the matrix material of active group.Its main chemical compositions has lipid acid, titanate coupling agent or paraffin etc.
Modified filler promotes resistance to ventilation property principle: because modification reinforced filling surface has active group, improve and rubber matrix affinity and and rubber matrix interface between associativity, prevent the gathering of filler, reach the object be well dispersed in rubber matrix, for this plays fine filling effect to the minim gap in rubber macromolecule, extend the path of gas by sizing material, thus prevent passing through of gas to a certain extent, improve the resistance to air loss of sizing material.Modification reinforced filling lipophilic group one end can be connected with rubber macromolecule, shown in Fig. 1; Modified filler Production Flow Chart as shown in Figure 2.
Brominated butyl rubber and natural rubber ratio allocate principle: brominated butyl rubber mainly utilizes the characteristic that its resistance to air loss is high in this formula, but due to adding of modification reinforced filling, add the resistance to air loss of sizing material to a certain extent, in view of this, for reducing the production cost of sizing material, by related experiment, carried out rational allocation to brominated butyl rubber and natural rubber ratio, test-results is as follows:
Note: BIIR (80 parts)/NR (20 parts) is normal reference formula rubber proportioning
As shown in Figure 3, can find out, after the basis of BIIR (80 parts)/NR (20 parts) normal reference formula adds modification reinforced filling, the air transmission coefficient of sizing material declines, and shows that its air retaining wall promotes; Air transmission coefficient and the normal reference formula of BIIR (75 parts)/NR (25 parts)/modification reinforced filling (18 parts) are the most close, show to fill a prescription on the basis of reducing brominated butyl rubber, add modification reinforced filling, the air retaining wall of sizing material can be kept to remain unchanged.
Beneficial effect of the present invention is:
Compared with prior art, if the present invention calculates according to embodiment 2, air retaining wall sizing material cost unit price is reduced in about 4%; If then factory's car tire year can at about 1,000 ten thousand, year cost thrifty at about 5,000,000 yuan; Cost is thrifty with the obvious advantage.
Compared with prior art, the present invention, while reduction air retaining wall sizing material production cost, significantly improves its air-tightness, improves its flexural property, reduce its thermogenesis performance simultaneously; The present invention can improve the resistance to ventilation property of tire, endurance quality and reduction rolling resistance for this reason.
Figure of description
Fig. 1 is the schematic diagram that modification reinforced filling lipophilic group one end is connected with rubber macromolecule;
Fig. 2 is modified filler production scheme;
Fig. 3 is the air transmission coefficient table of BIIR/NR modification reinforced filling.
Embodiment
Embodiment 1
A kind of pneumatic tyre resistance to ventilation property low cost air/tight layer rubber, comprises brominated butyl rubber 60 parts, natural rubber 20 parts, carbon black 50 parts, sulfenamide type accelerators 0.5 part, thiazole accelerator 1 part, alkylphenol formaldehyde resin 2 parts, petroleum resin 3 parts, hydrocarbon resin blend 10 parts, modification reinforced filling 10 parts, 3 parts, zinc oxide, stearic acid 0.5 part, 0.5 part, sulphur, naphthenic oil 5 parts.
Embodiment 2
A kind of pneumatic tyre resistance to ventilation property low cost air/tight layer rubber, comprises brominated butyl rubber 75 parts, natural rubber 25 parts, carbon black 55 parts, sulfenamide type accelerators 0.5 part, thiazole accelerator 1.5 parts, alkylphenol formaldehyde resin 3 parts, petroleum resin 4 parts, hydrocarbon resin blend 13 parts, modification reinforced filling 18 parts, 5 parts, zinc oxide, stearic acid 0.9 part, 0.8 part, sulphur, naphthenic oil 7 parts.
Embodiment 3
A kind of pneumatic tyre resistance to ventilation property low cost air/tight layer rubber, comprises brominated butyl rubber 80 parts, natural rubber 40 parts, carbon black 60 parts, sulfenamide type accelerators 0.8, thiazole accelerator 1.7 parts, alkylphenol formaldehyde resin 5 parts, petroleum resin 6 parts, hydrocarbon resin blend 14 parts, modification reinforced filling 30 parts, 8 parts, zinc oxide, stearic acid 2.5 parts, 1 part, sulphur, naphthenic oil 11 parts.
The preparation method of modified filler comprises the steps:
(1) add in reactor by lipid acid, titanate coupling agent or auxiliary agent of paraffin chemical composition, raised temperature is 80 ± 10 DEG C, and pressure is normal pressure, and stirring reaction 15 ± 5min, is cooled to room temperature, takes out, barrelling;
(2) add in reactor by light calcium carbonate, raised temperature is 90 ± 10 DEG C, and the mixture that step (1) is obtained drops in this reactor, and pressure is normal pressure, stirring reaction 25 ± 5min, is cooled to 40 ± 10 DEG C, Purification by filtration, be cooled to room temperature, take out, packaging.
The compounding process of a kind of pneumatic tyre resistance to ventilation property low cost air/tight layer rubber comprises the following steps:
(1) one section mixing: mixingly carry out in F305 Banbury mixer, adds the rubber mixing pressure floating weight 30s of brominated butyl rubber and natural rubber composition, carry stone roller, add little medicine, carbon black pressure floating weight 35s, carry stone roller, add other component pressure bolt 30s, carry stone roller, pressure floating weight 25s, 130 DEG C of binder removals;
(2) after master batch Banbury mixer binder removal, sizing material by twin-screw extrusion tablet press compressing tablet, behind separant pond by Fan Cooling System cool, build buttress;
(3) finished composition is mixing: mixingly carry out in F305 Banbury mixer, and add one section of mixing rubber master batch, eventually refining medicine pressure floating weight 35s, carry stone roller, pressure floating weight 30s, carries stone roller, pressure floating weight 25s, 100 DEG C of binder removals;
(4) after finished composition Banbury mixer binder removal, sizing material by each 3 times of twin-screw extrusion tablet press compressing tablet, on a mill until left and right cutting knife, behind separant pond by Fan Cooling System cool, build buttress.
Formula and the conventional formulation performance comparison of embodiment 2 are as shown in the table:
As can be seen from the above table, test recipe can meet tyre performance requirement.
The above is not limitation of the present invention; be noted that for those skilled in the art; under the prerequisite not departing from essential scope of the present invention; can also make some changes, remodeling, interpolation or replacement, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. a pneumatic tyre resistance to ventilation property low cost air/tight layer rubber, it is characterized in that, comprise brominated butyl rubber 60-80 part, natural rubber 20-40 part, carbon black 50-60 part, promotor 0.5-2.5 part, resin 15-25 part, modification reinforced filling 10-30 part, zinc oxide 3-8 part, stearic acid 0.5-2.5 part, sulphur 0.5-1 part, other component 5-11 part.
2. a kind of pneumatic tyre resistance to ventilation property low cost air/tight layer rubber according to claim 1, it is characterized in that, described brominated butyl rubber 75 parts, natural rubber 25 parts, carbon black 55 parts, promotor 2 parts, resin 20 parts, modification reinforced filling 18 parts, 5 parts, zinc oxide, stearic acid 0.9 part, 0.8 part, sulphur, naphthenic oil 7 parts.
3. a kind of pneumatic tyre resistance to ventilation property low cost air/tight layer rubber according to claim 1 or 2, is characterized in that, described resin is one or more in alkylphenol formaldehyde resin, petroleum resin or hydrocarbon resin.
4. a kind of pneumatic tyre resistance to ventilation property low cost air/tight layer rubber according to claim 1 or 2, it is characterized in that, what described modification reinforced filling was that adjuvant chemistry becomes divisional processing take light calcium carbonate as the matrix material that the surface of carrier has active group, described adjuvant chemistry composition is light calcium carbonate 80-100 part, lipid acid 1-3 part, the mixture of titanate coupling agent or paraffin 0.5-2 part composition.
5. a kind of pneumatic tyre resistance to ventilation property low cost air/tight layer rubber according to claim 1 or 2, it is characterized in that, described promotor is sulfenamide type accelerators or thiazole accelerator.
6. a kind of pneumatic tyre resistance to ventilation property low cost air/tight layer rubber according to claim 1 or 2, it is characterized in that, other component described is naphthenic oil.
7. a kind of pneumatic tyre resistance to ventilation property low cost air/tight layer rubber according to claim 1 or 4, it is characterized in that, the preparation method of described modified filler comprises the steps:
(1) add in reactor by lipid acid, titanate coupling agent or auxiliary agent of paraffin chemical composition, raised temperature is 80 ± 10 DEG C, and pressure is normal pressure, and stirring reaction 15 ± 5min, is cooled to room temperature, takes out, barrelling;
(2) add in reactor by light calcium carbonate, raised temperature is 90 ± 10 DEG C, and the mixture that step (1) is obtained drops in this reactor, and pressure is normal pressure, stirring reaction 25 ± 5min, is cooled to 40 ± 10 DEG C, Purification by filtration, be cooled to room temperature, take out, packaging.
8. a kind of pneumatic tyre resistance to ventilation property low cost air/tight layer rubber according to claim 1 or 2, it is characterized in that, the compounding process of its air/tight layer rubber sizing material comprises the following steps:
(1) one section mixing: mixingly carry out in Banbury mixer, adds the rubber mixing pressure floating weight 20-40s of brominated butyl rubber and natural rubber composition, carry stone roller, add little medicine, carbon black pressure floating weight 25-35s, carry stone roller, add other component pressure bolt 20-30s, carry stone roller, pressure floating weight 20-25s; Closed-smelting machine rotor rotating speed 30-55 rev/min; 130 DEG C of binder removals;
(2) after master batch Banbury mixer binder removal, sizing material by twin-screw extrusion tablet press compressing tablet, behind separant pond cool, build buttress;
(3) finished composition is mixing: mixingly carry out in Banbury mixer, and add one section of mixing rubber master batch, eventually refining medicine pressure floating weight 25-35s, carry stone roller, pressure floating weight 20-35s, carries stone roller, pressure floating weight 20-30s; Closed-smelting machine rotor rotating speed 20-30 rev/min; 100 DEG C of binder removals;
(4) after finished composition Banbury mixer binder removal, sizing material by each 3 times of twin-screw extrusion tablet press compressing tablet, on a mill until left and right cutting knife, behind separant pond cool, build buttress.
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| CN201510675752.2A CN105254965A (en) | 2015-10-16 | 2015-10-16 | Inner liner compound with air permeation resistance and low cost and for pneumatic tire |
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| CN201510675752.2A CN105254965A (en) | 2015-10-16 | 2015-10-16 | Inner liner compound with air permeation resistance and low cost and for pneumatic tire |
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| CN105254965A true CN105254965A (en) | 2016-01-20 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105906892A (en) * | 2016-06-21 | 2016-08-31 | 柳州市颖航汽配有限公司 | Method for improving rubber air tightness |
| CN105949633A (en) * | 2016-05-25 | 2016-09-21 | 德州玲珑轮胎有限公司 | Tire inner liner rubber and preparation method thereof |
| WO2018028196A1 (en) * | 2016-08-12 | 2018-02-15 | 青岛科技大学 | Continuous rubber mixing process method |
| CN107815031A (en) * | 2017-12-27 | 2018-03-20 | 双钱集团（江苏）轮胎有限公司 | A kind of Recipe of the inner liner containing brombutyl natural rubber |
| CN108047578A (en) * | 2017-12-27 | 2018-05-18 | 双钱集团（江苏）轮胎有限公司 | A kind of Recipe of the inner liner containing HAR fillers |
| CN108384130A (en) * | 2018-02-26 | 2018-08-10 | 双钱集团上海轮胎研究所有限公司 | A kind of high guarantor's gas molding inexpensive tyre airtight layer glue composition easy to attach |
| CN109824991A (en) * | 2019-02-18 | 2019-05-31 | 朝阳浪马轮胎有限责任公司 | A kind of low cost high dispersive high-air-tightness and its preparation process |
| CN110423414A (en) * | 2019-08-01 | 2019-11-08 | 江苏通用科技股份有限公司 | A kind of inner liner film and preparation method thereof |
| CN112961622A (en) * | 2021-03-17 | 2021-06-15 | 上海沥高科技股份有限公司 | Sealing adhesive tape and preparation method and application thereof |
| CN113004623A (en) * | 2021-01-28 | 2021-06-22 | 山东玲珑轮胎股份有限公司 | Automobile tire inner liner rubber composition and preparation method and application thereof |
| CN114536833A (en) * | 2022-03-17 | 2022-05-27 | 自密封安全轮胎(广东)有限公司 | Preparation method of integrally vulcanized self-sealing tire |
| CN114559692A (en) * | 2022-03-07 | 2022-05-31 | 自密封安全轮胎(广东)有限公司 | Preparation method of integrally vulcanized self-sealing tire |
| CN115536951A (en) * | 2021-06-30 | 2022-12-30 | 纳恩博（常州）科技有限公司 | Tire air-retaining layer rubber mixture, preparation method, tire and scooter |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105949633A (en) * | 2016-05-25 | 2016-09-21 | 德州玲珑轮胎有限公司 | Tire inner liner rubber and preparation method thereof |
| CN105906892A (en) * | 2016-06-21 | 2016-08-31 | 柳州市颖航汽配有限公司 | Method for improving rubber air tightness |
| WO2018028196A1 (en) * | 2016-08-12 | 2018-02-15 | 青岛科技大学 | Continuous rubber mixing process method |
| CN107815031A (en) * | 2017-12-27 | 2018-03-20 | 双钱集团（江苏）轮胎有限公司 | A kind of Recipe of the inner liner containing brombutyl natural rubber |
| CN108047578A (en) * | 2017-12-27 | 2018-05-18 | 双钱集团（江苏）轮胎有限公司 | A kind of Recipe of the inner liner containing HAR fillers |
| CN108384130A (en) * | 2018-02-26 | 2018-08-10 | 双钱集团上海轮胎研究所有限公司 | A kind of high guarantor's gas molding inexpensive tyre airtight layer glue composition easy to attach |
| CN109824991A (en) * | 2019-02-18 | 2019-05-31 | 朝阳浪马轮胎有限责任公司 | A kind of low cost high dispersive high-air-tightness and its preparation process |
| CN110423414A (en) * | 2019-08-01 | 2019-11-08 | 江苏通用科技股份有限公司 | A kind of inner liner film and preparation method thereof |
| CN113004623A (en) * | 2021-01-28 | 2021-06-22 | 山东玲珑轮胎股份有限公司 | Automobile tire inner liner rubber composition and preparation method and application thereof |
| CN112961622A (en) * | 2021-03-17 | 2021-06-15 | 上海沥高科技股份有限公司 | Sealing adhesive tape and preparation method and application thereof |
| CN115536951A (en) * | 2021-06-30 | 2022-12-30 | 纳恩博（常州）科技有限公司 | Tire air-retaining layer rubber mixture, preparation method, tire and scooter |
| CN115536951B (en) * | 2021-06-30 | 2023-12-15 | 纳恩博（常州）科技有限公司 | Tire air-protecting layer rubber mixture, preparation method, tire and scooter |
| CN114559692A (en) * | 2022-03-07 | 2022-05-31 | 自密封安全轮胎(广东)有限公司 | Preparation method of integrally vulcanized self-sealing tire |
| CN114536833A (en) * | 2022-03-17 | 2022-05-27 | 自密封安全轮胎(广东)有限公司 | Preparation method of integrally vulcanized self-sealing tire |
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