JP2008038133A5 - - Google Patents
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- JP2008038133A5 JP2008038133A5 JP2007079313A JP2007079313A JP2008038133A5 JP 2008038133 A5 JP2008038133 A5 JP 2008038133A5 JP 2007079313 A JP2007079313 A JP 2007079313A JP 2007079313 A JP2007079313 A JP 2007079313A JP 2008038133 A5 JP2008038133 A5 JP 2008038133A5
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- conveyor belt
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(6)20℃の測定温度下で、10%伸張させ、振幅±2%の振動を振動数10Hzで与えて測定した損失係数tanδが0.04〜0.07となり、
下記式[1]に示すエネルギーロス指数(ΔH)が0.080以下となる、上記(1)〜(5)のいずれかに記載のコンベヤベルト用ゴム組成物。
ΔH=(SpGr×tanδ)/M25 [1]
ここで、SpGrは、20℃での比重(g/cm3 )、tanδは、20℃の測定温度下で、10%伸張させ、振幅±2%の振動を振動数10Hzで与えて測定した損失係数、M25は、25%伸び時における引張応力(MPa)である。
( 6 ) The loss factor tan δ measured by extending 10% at a measurement temperature of 20 ° C. and applying vibration with an amplitude of ± 2% at a frequency of 10 Hz is 0.04 to 0.07.
The rubber composition for conveyor belts according to any one of (1) to (5) , wherein an energy loss index (ΔH) represented by the following formula [1] is 0.080 or less.
ΔH = (SpGr × tan δ) / M 25 [1]
Here, SpGr is a specific gravity (g / cm 3 ) at 20 ° C., tan δ is a loss measured by extending 10% at a measurement temperature of 20 ° C., and giving a vibration with an amplitude of ± 2% at a frequency of 10 Hz. The coefficient, M 25, is the tensile stress (MPa) at 25% elongation.
(7)上面カバーゴム層、補強層および下面カバーゴム層からなるコンベヤベルトであって、 (7) A conveyor belt comprising an upper cover rubber layer, a reinforcing layer and a lower cover rubber layer,
上記下面カバーゴム層の少なくとも裏面表面が、上記(1)〜(6)のいずれかに記載のコンベヤベルト用ゴム組成物により形成される、コンベヤベルト。 A conveyor belt, wherein at least the back surface of the lower surface cover rubber layer is formed of the rubber composition for a conveyor belt according to any one of (1) to (6).
Claims (7)
前記ゴム成分中の天然ゴムとポリブタジエンゴムとの量比(NR/BR)が、80/20〜25/75であり、
前記カーボンブラックの含有量が、前記ゴム成分100質量部に対して15〜35質量部であり、
前記シリカの含有量が、前記ゴム成分100質量部に対して5〜25質量部であり、
前記シランカップリング剤の含有量が、前記ゴム成分100質量部に対して0.5〜3質量部であり、
前記ジエチレングリコールの含有量が、前記ゴム成分100質量部に対して0.5〜4.5質量部である、コンベヤベルト用ゴム組成物。 A rubber component comprising natural rubber (NR) and polybutadiene rubber (BR), carbon black, silica, a silane coupling agent, and diethylene glycol;
The ratio of natural rubber to polybutadiene rubber (NR / BR) in the rubber component is 80/20 to 25/75,
The carbon black content is 15 to 35 parts by mass with respect to 100 parts by mass of the rubber component,
The silica content is 5 to 25 parts by mass with respect to 100 parts by mass of the rubber component,
The content of the silane coupling agent is 0.5 to 3 parts by mass with respect to 100 parts by mass of the rubber component,
The rubber composition for conveyor belts whose content of the said diethylene glycol is 0.5-4.5 mass parts with respect to 100 mass parts of said rubber components.
下記式[1]に示すエネルギーロス指数(ΔH)が0.080以下となる、請求項1〜5のいずれかに記載のコンベヤベルト用ゴム組成物。 The rubber composition for conveyor belts according to any one of claims 1 to 5, wherein an energy loss index (ΔH) represented by the following formula [1] is 0.080 or less.
ΔH=(SpGr×tanδ)/M ΔH = (SpGr × tan δ) / M 25twenty five [1] [1]
ここで、SpGrは、20℃での比重(g/cm Here, SpGr is specific gravity at 20 ° C. (g / cm 3Three )、tanδは、20℃の測定温度下で、10%伸張させ、振幅±2%の振動を振動数10Hzで与えて測定した損失係数、M ), Tan δ is a loss coefficient measured by extending 10% at a measurement temperature of 20 ° C. and applying vibration with an amplitude of ± 2% at a frequency of 10 Hz, M 25twenty five は、25%伸び時における引張応力(MPa)である。Is the tensile stress (MPa) at 25% elongation.
前記下面カバーゴム層の少なくとも裏面表面が、請求項1〜6のいずれかに記載のコンベヤベルト用ゴム組成物により形成される、コンベヤベルト。 A conveyor belt comprising an upper cover rubber layer, a reinforcing layer and a lower cover rubber layer,
A conveyor belt, wherein at least the back surface of the lower cover rubber layer is formed of the rubber composition for a conveyor belt according to any one of claims 1 to 6 .
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007079313A JP4286298B2 (en) | 2006-07-14 | 2007-03-26 | Rubber composition for conveyor belt and conveyor belt |
AU2007273485A AU2007273485B2 (en) | 2006-07-14 | 2007-07-12 | Rubber composition for conveyor belt and conveyor belt |
PCT/JP2007/063894 WO2008007733A1 (en) | 2006-07-14 | 2007-07-12 | Rubber composition for conveyor belt and conveyor belt |
CN2007800267928A CN101490159B (en) | 2006-07-14 | 2007-07-12 | Rubber composition for conveyor belt and conveyor belt |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006194693 | 2006-07-14 | ||
JP2007079313A JP4286298B2 (en) | 2006-07-14 | 2007-03-26 | Rubber composition for conveyor belt and conveyor belt |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2008038133A JP2008038133A (en) | 2008-02-21 |
JP2008038133A5 true JP2008038133A5 (en) | 2009-04-02 |
JP4286298B2 JP4286298B2 (en) | 2009-06-24 |
Family
ID=38923289
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007079313A Active JP4286298B2 (en) | 2006-07-14 | 2007-03-26 | Rubber composition for conveyor belt and conveyor belt |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP4286298B2 (en) |
CN (1) | CN101490159B (en) |
AU (1) | AU2007273485B2 (en) |
WO (1) | WO2008007733A1 (en) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008105415A1 (en) * | 2007-02-27 | 2008-09-04 | Ube Industries, Ltd. | Rubber composition for belt, and rubber belt |
JP5358980B2 (en) * | 2008-03-07 | 2013-12-04 | 株式会社ブリヂストン | Rubber composition for conveyor belt and conveyor belt |
JP5487567B2 (en) * | 2008-06-24 | 2014-05-07 | 横浜ゴム株式会社 | Rubber composition for conveyor belt and conveyor belt |
JP5482071B2 (en) * | 2009-10-02 | 2014-04-23 | 横浜ゴム株式会社 | Rubber composition for conveyor belt and conveyor belt |
KR101509797B1 (en) * | 2009-11-10 | 2015-04-06 | 현대자동차주식회사 | Composites of anti vibration rubbers improving sound absorbability/insulation and Anti vibration rubbers |
JP5587694B2 (en) * | 2010-07-20 | 2014-09-10 | 住友ゴム工業株式会社 | Rubber composition for tire, method for producing the same, and pneumatic tire |
JP5545102B2 (en) * | 2010-07-30 | 2014-07-09 | 戸田工業株式会社 | Hydrophobic silica particle powder, production method thereof, and rubber composition using the hydrophobic silica particle powder |
JP5902935B2 (en) * | 2011-12-12 | 2016-04-13 | 株式会社ブリヂストン | Rubber composition for conveyor belt, conveyor belt and belt conveyor |
JP5961476B2 (en) * | 2012-08-03 | 2016-08-02 | 株式会社ブリヂストン | Rubber composition for conveyor belt, conveyor belt and belt conveyor |
AU2012353554B2 (en) * | 2011-12-12 | 2016-02-25 | Bridgestone Corporation | Rubber composition for conveyor belts, conveyor belt, and belt conveyor |
JP5915456B2 (en) | 2012-08-23 | 2016-05-11 | 横浜ゴム株式会社 | Conveyor belt |
JP5999014B2 (en) * | 2013-04-15 | 2016-09-28 | 横浜ゴム株式会社 | Rubber composition for conveyor belt and conveyor belt |
JP6077921B2 (en) * | 2013-04-18 | 2017-02-08 | 横浜ゴム株式会社 | Coated rubber composition for conveyor belt, laminate and conveyor belt |
JP5670510B2 (en) * | 2013-05-23 | 2015-02-18 | 株式会社ブリヂストン | Rubber composition, rubber composition for conveyor belt, conveyor belt and belt conveyor apparatus |
WO2015083746A1 (en) * | 2013-12-03 | 2015-06-11 | バンドー化学株式会社 | Conveyor belt |
JP6524909B2 (en) * | 2014-05-14 | 2019-06-05 | 横浜ゴム株式会社 | Rubber composition for conveyor belt and conveyor belt |
JP6254704B2 (en) * | 2014-08-07 | 2017-12-27 | バンドー化学株式会社 | Conveyor belt, conveyor belt manufacturing method, and rubber composition |
CN104311896B (en) * | 2014-09-29 | 2017-02-08 | 青岛福凯橡塑新材料有限公司 | High-strength and high-wear resistance H type covering rubber for steel cord conveyor belt |
JP6500398B2 (en) * | 2014-11-17 | 2019-04-17 | 横浜ゴム株式会社 | Conveyor belt |
JP6758027B2 (en) * | 2015-06-22 | 2020-09-23 | 株式会社ブリヂストン | Rubber compositions, laminates, and conveyor belts |
KR102065368B1 (en) * | 2017-03-14 | 2020-01-13 | 요코하마 고무 가부시키가이샤 | Rubber compositions and conveyor belts for conveyor belts |
JP6952234B2 (en) * | 2017-05-10 | 2021-10-20 | 横浜ゴム株式会社 | Rubber composition for conveyor belts and conveyor belts |
JP7485925B2 (en) | 2020-05-20 | 2024-05-17 | 横浜ゴム株式会社 | Rubber composition for conveyor belt and conveyor belt |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58198547A (en) * | 1982-05-16 | 1983-11-18 | Bando Chem Ind Ltd | Rubber composition |
US6079468A (en) * | 1996-08-09 | 2000-06-27 | The Goodyear Tire & Rubber Company | Rubber article containing a bismaleimide and a bis benzothiazolydithio end capped compound |
JP4896283B2 (en) * | 1999-07-15 | 2012-03-14 | 株式会社ブリヂストン | Rubber composition for belt |
US6620875B2 (en) * | 2001-09-04 | 2003-09-16 | Uniroyal Chemical Company, Inc. | Rubber compositions and method for increasing the mooney scorch value |
JP4270501B2 (en) * | 2003-09-01 | 2009-06-03 | 株式会社ブリヂストン | Tires for motorcycles |
JP4577490B2 (en) * | 2004-10-07 | 2010-11-10 | 株式会社ブリヂストン | Rubber composition for belt and belt |
JP4553682B2 (en) * | 2004-10-27 | 2010-09-29 | 住友ゴム工業株式会社 | Rubber composition for coating steel cord and steel cord coated thereby |
-
2007
- 2007-03-26 JP JP2007079313A patent/JP4286298B2/en active Active
- 2007-07-12 CN CN2007800267928A patent/CN101490159B/en active Active
- 2007-07-12 WO PCT/JP2007/063894 patent/WO2008007733A1/en active Application Filing
- 2007-07-12 AU AU2007273485A patent/AU2007273485B2/en active Active
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