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Research Home
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rubber (material) (<gum resin by product>, <gum resin and gum resin by product>, ... Materials (hierarchy name)) |
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Note: A natural hydrocarbon polymer formed from the resinous latex of trees of the Hevea and Parthenium genera. To prepare natural rubber, the latex is collected from a cut in the bark, precipitated with acid, then washed and dried. Rubber is very elastic and was used for bowls, shoe soles, adhesives, and bouncy balls. However, when cooled, rubber becomes brittle and when warmed it becomes sweaty and tacky. Prior to the development of synthetic resins, unvulcanized rubber was used for adhesive tapes and crepe shoe soles. In 1839, Charles Goodyear discovered that rubber can be hardened with the vulcanization process in which sulfur is used to initiate crosslinking of the hydrocarbon strands. Higher sulfur content produces a harder, denser material. Vulcanized rubber is used to make rubber bands, foams, fabric coatings, small objects, combs, pens, and musical instruments. Vulcanized rubber, however, will emit sulfur when exposed to light or heat causing the rubber to degrade and become brittle. Since the 19th century, small amounts of wax have been added to the rubber during vulcanization. The wax slowly migrates to the surface and provides a thin layer of protection from oxidation.
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| Terms: |
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| rubber (material) (preferred,C,U,LC,English-P,D,U,N)
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| rubber (materiaal) (Dutch-P,D,U,U)
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| rubbers (materials) (C,U,English,AD,U,N)
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| natural rubber (C,U,English,UF,U,U)
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| 橡膠 (材料) (C,U,Chinese (traditional)-P,D,U,U)
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| xiàng jiāo (C,U,Chinese (transliterated Hanyu Pinyin)-P,UF,U,U)
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| xiang jiao (C,U,Chinese (transliterated Pinyin without tones)-P,UF,U,U)
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| hsiang chiao (C,U,Chinese (transliterated Wade-Giles)-P,UF,U,U)
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| caoutchouc (material traitées) (C,U,French-P,D,U,N)
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| caoutchouc naturel (material traitées) (C,U,French,UF,U,U)
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| gummi (C,U,Norwegian (Nynorsk)-P,AD,U,SN)
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| gummi (Norwegian (Bokmål)-P,AD,U,SN)
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| goma elástica (C,U,Spanish-P,D,U,U)
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Facet/Hierarchy Code: M.MT |
Hierarchical Position:
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Materials Facet |
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.... Materials (hierarchy name) (G) |
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........ materials (substances) (G) |
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............ <materials by composition> (G) |
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................ organic material (G) |
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.................... resin (organic material) (G) |
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........................ <gum resin and gum resin by product> (G) |
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............................ <gum resin by product> (G) |
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................................ rubber (material) (G) |
Additional Notes: |
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| Chinese (traditional) ..... 加工多種熱帶樹木和其它植物之乳白色汁液（稱為生橡膠）所得的材料，可製成多種不同的硬度，其可貴之處在於其彈性。 |
| Dutch ..... Product dat wordt gewonnen door het verwerken van het melkachtige sap van verschillende tropische bomen en andere planten, 'caoutchouc' genaamd. Geproduceerd in verschillende maten van hardheid en gewaardeerd om de elastische eigenschappen. |
| Spanish ..... Producto obtenido al procesar la savia lechosa de varios árboles y plantas tropicales, llamadas "caucho" y que se produce con diferentes grados de dureza. Apreciado por su elasticidad. |
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Related concepts: |
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| composed of .... |
caoutchouc (resin) |
| .................... |
(gum resin, <gum resin and gum resin by product>, ... Materials (hierarchy name)) [300263583] |
| derived/made from .... |
Helianthus (genus) |
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(Asteraceae (family), Asterales (order), ... Living Organisms (hierarchy name)) [300404749] |
| derived/made from .... |
Hevea (genus) |
| ................................ |
(Euphorbiaceae (family), Malpighiales (order), ... Living Organisms (hierarchy name)) [300375630] |
| derived/made from .... |
Parthenium (genus) |
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(Asteraceae (family), Asterales (order), ... Living Organisms (hierarchy name)) [300375631] |
| distinguished from .... |
gutta-percha |
| .................................. |
(gum resin, <gum resin and gum resin by product>, ... Materials (hierarchy name)) [300211567] |
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