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Rubber Products
Rubber, also called India rubber, latex, Amazonian rubber, ''caucho'', or ''caoutchouc'', as initially produced, consists of polymers of the organic compound isoprene, with minor impurities of other organic compounds. Thailand, Malaysia, and Indonesia are three of the leading rubber producers. Types of polyisoprene that are used as natural rubbers are classified as elastomers. Currently, rubber is harvested mainly in the form of the latex from the Hevea brasiliensis, rubber tree (''Hevea brasiliensis'') or others. The latex is a sticky, milky and white colloid drawn off by making incisions in the bark and collecting the fluid in vessels in a process called "tapping". The latex then is refined into the rubber that is ready for commercial processing. In major areas, latex is allowed to coagulate in the collection cup. The coagulated lumps are collected and processed into dry forms for sale. Natural rubber is used extensively in many applications and products, either alone or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caoutchouc Naturel
Rubber, also called India rubber, latex, Amazonian rubber, ''caucho'', or ''caoutchouc'', as initially produced, consists of polymers of the organic compound isoprene, with minor impurities of other organic compounds. Thailand, Malaysia, and Indonesia are three of the leading rubber producers. Types of polyisoprene that are used as natural rubbers are classified as elastomers. Currently, rubber is harvested mainly in the form of the latex from the Hevea brasiliensis, rubber tree (''Hevea brasiliensis'') or others. The latex is a sticky, milky and white colloid drawn off by making incisions in the bark and collecting the fluid in vessels in a process called "tapping". The latex then is refined into the rubber that is ready for commercial processing. In major areas, latex is allowed to coagulate in the collection cup. The coagulated lumps are collected and processed into dry forms for sale. Natural rubber is used extensively in many applications and products, either alone or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Landolphia
''Landolphia'' is a genus of flowering plants in the family Apocynaceae first described as a genus in 1806. They take the form of vines that scramble over host trees. ''Landolphia'' is native to tropical Africa. Characteristics There are about fifty species of ''Landolphia'' in continental Africa and about fourteen more species in Madagascar. They are typically found in forest habitats in tropical West and Central Africa, scrambling over trees, but a few species are large shrubs. They have simple, glossy green leaves in opposite pairs, jasmine-like flowers with tubes and parts in fives, and hard-shelled, fleshy fruits with several seeds embedded in the pulp. After fruiting, the flower stem develops into a twisting tendril which branches near its tip. Uses Members of this genus exude latex when the bark is damaged. The vines have traditionally been used to supply rubber but that function has increasingly been taken over by the rubber tree, ''Hevea brasiliensis ''Hevea brasili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manilkara
''Manilkara'' is a genus of trees in the family Sapotaceae. They are widespread in tropical and semitropical locations, in Africa, Madagascar, Asia, Australia, and Latin America, as well as various islands in the Pacific and in the Caribbean. A close relative is the genus ''Pouteria''. Trees of this genus yield edible fruit, useful wood, and latex. The best-known species are '' M. bidentata'' (''balatá''), '' M. chicle'' (chicle) and '' M. zapota'' (sapodilla). ''M. hexandra'' is the floral emblem of Prachuap Khiri Khan Province in Thailand, where it is known as ''rayan''. ''M. obovata'' shares the vernacular name of African pear with another completely different species, '' Dacryodes edulis'', and neither should be confused with '' Baillonella toxisperma'', known by the very similar name, African pearwood. The generic name, ''Manilkara'', is derived from ''manil-kara'', a vernacular name for '' M. kauki'' in Malayalam. ''Manilkara'' trees are often significant, or even do ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chicle
Chicle () is a natural gum traditionally used in making chewing gum and other products. It is collected from several species of Mesoamerican trees in the genus ''Manilkara'', including '' M. zapota'', '' M. chicle'', '' M. staminodella'', and '' M. bidentata''. The tapping of the gum is similar to the tapping of latex from the rubber tree: zig-zag gashes are made in the tree trunk and the dripping gum is collected in small bags. It is then boiled until it reaches the correct thickness. Locals who collect chicle are called ''chicleros''. Etymology The word ''chicle'' comes from the Nahuatl word for the gum, , which can be translated as "sticky stuff". Alternatively, it may have come from the Mayan word . Chicle was well known to the Aztecs and to the Maya, and early European settlers prized it for its subtle flavor and high sugar content. The word is used in the Americas and Spain to refer to chewing gum, being a common term for it in Spanish and being the Portuguese term ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palaquium Gutta
''Palaquium gutta'' is a tree in the family Sapotaceae. The specific epithet ' is from the Malay word ''getah'' meaning "sap or latex". It is known in Indonesia as ''karet oblong''. Description ''Palaquium gutta'' grows up to tall. The bark is reddish brown. Inflorescences bear up to 12 flowers. The fruits are round or ellipsoid, sometimes brownish tomentose, up to long. Distribution and habitat ''Palaquium gutta'' is native to Sumatra, Peninsular Malaysia, Singapore and Borneo. Its habitat is lowland mixed dipterocarp, ''kerangas'' and limestone forests. Uses The seeds of ''Palaquium gutta'' are used to make soap and candles, occasionally in cooking. The latex is used to make gutta-percha. The timber is logged and traded as nyatoh. Conservation ''Palaquium gutta'' has been assessed as Near Threatened on the IUCN Red List. The significant threat to the species is deforestation: in Borneo for conversion of land to palm oil cultivation. References gutta A gutta (Latin p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
