CN113549193B - 一种低温静刚度变化率低的wj-8a型高铁弹性垫板 - Google Patents
一种低温静刚度变化率低的wj-8a型高铁弹性垫板 Download PDFInfo
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- CN113549193B CN113549193B CN202110815554.7A CN202110815554A CN113549193B CN 113549193 B CN113549193 B CN 113549193B CN 202110815554 A CN202110815554 A CN 202110815554A CN 113549193 B CN113549193 B CN 113549193B
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- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
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- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
- C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
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- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
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- C—CHEMISTRY; METALLURGY
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
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- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4829—Polyethers containing at least three hydroxy groups
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- C—CHEMISTRY; METALLURGY
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
- E01B9/681—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by the material
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2101/00—Manufacture of cellular products
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2110/00—Foam properties
- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
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Abstract
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CN202110815554.7A CN113549193B (zh) | 2021-07-19 | 2021-07-19 | 一种低温静刚度变化率低的wj-8a型高铁弹性垫板 |
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CN202110815554.7A CN113549193B (zh) | 2021-07-19 | 2021-07-19 | 一种低温静刚度变化率低的wj-8a型高铁弹性垫板 |
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CN113549193A CN113549193A (zh) | 2021-10-26 |
CN113549193B true CN113549193B (zh) | 2023-02-24 |
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CN114276515B (zh) * | 2021-12-08 | 2023-04-21 | 山东奥卓新材料有限公司 | 一种超高强度低动静刚度比聚氨酯微孔弹性垫板及其制备方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4647596A (en) * | 1985-04-27 | 1987-03-03 | Bridgestone Corporation | Microcellular polyurethane elastomer and manufacturing method of the same |
CN102585162A (zh) * | 2011-12-23 | 2012-07-18 | 山东东大一诺威聚氨酯有限公司 | 动态性能优异的微孔聚氨酯弹性体组合物及其制备方法 |
CN104592744A (zh) * | 2015-02-03 | 2015-05-06 | 东莞市鹏博盛实业有限公司 | 一种高速铁路用减震垫块及其制作方法 |
CN107383322A (zh) * | 2017-08-30 | 2017-11-24 | 中车青岛四方车辆研究所有限公司 | 城轨用低动静刚度比聚氨酯微孔弹性体组合料及制备方法 |
CN110305292A (zh) * | 2019-07-09 | 2019-10-08 | 北京理工大学 | 一种低动静刚度比聚氨酯微孔弹性垫板的制备方法 |
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- 2021-07-19 CN CN202110815554.7A patent/CN113549193B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4647596A (en) * | 1985-04-27 | 1987-03-03 | Bridgestone Corporation | Microcellular polyurethane elastomer and manufacturing method of the same |
CN102585162A (zh) * | 2011-12-23 | 2012-07-18 | 山东东大一诺威聚氨酯有限公司 | 动态性能优异的微孔聚氨酯弹性体组合物及其制备方法 |
CN104592744A (zh) * | 2015-02-03 | 2015-05-06 | 东莞市鹏博盛实业有限公司 | 一种高速铁路用减震垫块及其制作方法 |
CN107383322A (zh) * | 2017-08-30 | 2017-11-24 | 中车青岛四方车辆研究所有限公司 | 城轨用低动静刚度比聚氨酯微孔弹性体组合料及制备方法 |
CN110305292A (zh) * | 2019-07-09 | 2019-10-08 | 北京理工大学 | 一种低动静刚度比聚氨酯微孔弹性垫板的制备方法 |
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