Mary Allen
A na-achọta rọba n'ime sap nke osisi pụrụ iche. Enwere ike iji rọba mee rọba maka nhichapụ, maka uwe mmiri ozuzo na akpụkpọ ụkwụ rọba, maka taya ụgbọ ala, na ọtụtụ ihe ndị ọzọ. Aha rọba sitere n'asụsụ India: "Cao" pụtara osisi, "Ochu" pụtara akwa.
Osisi rọba sitere na mpaghara Amazon dị na South America na mbụ. Ọ na-eru a ọkara elu. N'okpuru ogbugbo, o nwere tubes mmiri ara ehi nke na-ebu sap site na mgbọrọgwụ ruo na epupụta. Ihe ọṅụṅụ a bụ mmiri ụzọ abụọ n'ụzọ atọ na otu ụzọ n'ụzọ atọ nke roba.
Ndị India achọpụtalarị na ị nwere ike igbutu ọkara nke ogwe osisi ahụ na-egbutu ya ma kpọgidere obere akpa n'elu osisi ahụ, sap ahụ ga-adaba n'ime ya. Ọ bụrụ na ị naghị ebipụ akụkụ nke ọzọ nke osisi ahụ, osisi ahụ nwere ike ịdị ndụ.
A na-akpọkwa ihe ọṅụṅụ mmiri ara ehi "roba eke" ma ọ bụ "latex". Ọ bụrụ na ị na-eme ka ihe ọṅụṅụ ahụ sie ike, ị nwere ike iji ya kpuchie otu akwa ma ọ bụ akpụkpọ anụ. Nke a na-eme ka mmiri ghara ịdị.
Kedu ihe ị nwere ike ime site na roba?
Osisi roba na-agbasa naanị ogologo oge ka achọpụtara America. Taa, a na-ahụ ya n'ubi dị n'akụkụ ụwa niile, mana ọ bụ naanị na warara na-ekpo ọkụ n'akụkụ ọ bụla nke equator. Tupu mgbe ahụ, ọ bụ naanị beeswax ka a maara na ọ na-eme ka ákwà ghara ịdị na-agaghị amịpụta mmiri. Ọ ka mma na rọba.
Na 1839, American Charles Goodyear nwere ihe ịga nke ọma n'ịme rọba sitere na rọba eke. A na-akpọ usoro a vulcanization. Rọba na-esi ike karịa rọba eke. Ị nwekwara ike ịhapụ ya ka ọ dị nro ma ọ bụ mee ka ọ sie ike. Ọ dịkwa mma maka taya ụgbọ ala, dịka ọmụmaatụ.
Na 1900, Russian Ivan Kondakov nwere ihe ịga nke ọma n'ịmepụta rọba artificially. Ị nwekwara ike iji ya mee rọba. Taa, ihe dị ka otu ụzọ n'ụzọ atọ nke rọba na-abịa site na okike, ụzọ abụọ n'ụzọ atọ ka a na-eji aka arụpụtara, nke ka ukwuu site na mmanụ ala.
Taa, a na-eji ihe karịrị ọkara nke roba na-emepụta taya ụgbọ ala. Otu n'ime ụdị kachasị ewu ewu taa ka bụ aha onye mepụtara ya ma kpọọ ya Goodyear. A na-agbakwunye soot sitere na chimni na rọba n'oge mmepụta. Nke a na-eme ka taya na-adịte aka ma na-enyekwa ha agba ojii. A chọrọ obere akụkụ maka akpụkpọ ụkwụ rọba, akpụkpọ ụkwụ akpụkpọ ụkwụ, uwe nchebe pụrụ iche, eriri rọba, nchicha, uwe aka, condom, na ọtụtụ ihe ndị ọzọ.