Polymers bophelong ba rōna ba letsatsi le letsatsi: maiketsetso rabara

Kajeno, polymers maiketsetso lula maemong a bohlokoa haholo bophelong ba batho bohle. Di sebediswa libakeng tse ngata tse sa tšoaneng tsa bophelo ba rōna ba letsatsi le letsatsi: ho tswa liaparo, lijo, lintho tsa ho bapala ho lifofane, limisaele, likoloi. Le e mong oa tse thahasellisang ka ho fetisisa le ea bohlokoa bakeng sa tse 'maloa tsa thepa buka e ikhethang ke rabara maiketsetso. Moralo tsa tlhaho manaka e na le sebopeho oa kamehla, ha ka nako e tšoanang, a maiketsetso a - kamehla.

Ho hlahisa polymers tsa mofuta ona o pharalletse liindasteri ile a qala nakoana pele Ntoa ea II ea Lefatše Jeremane le Russia. Butadiene rabara-sodium "Boone" lokolloa ka Jeremane. Eaba oa pele o lokela ho ya hlahiswa o pharalletse indasteri ka Russia polybutadiene. Hae hlahisoang ke mokhoa oa ho anionic molekyler mokelikeli butadiene ntshetswa Lebedev S.

Ka mor'a ntoa, ka lebaka la ho haella ha lihlahisoa tsa tlhaho, mefuta e maiketsetso o ile a qala ho hlahisa United States. Ho tloha ka nako ho fihlela letsatsing lena ho lokolloa ha thepa tse sa tšoaneng, tse thehiloeng maiketsetso rabara, hammoho le lihlahisoa tsohle tsa rabara, ho amana le ho hlahisoeng khōlō. Kfz-Händler, Aerospace le lifofane, boenjiniere le, kaho, motlakase le boenjiniere, meriana, indasteri seeta, mosebedisi thepa - le ea mong oa Liindasteri tsena ne a ke ke teng ntle le polymer ena e ikhethang. Joalo tšebeliso atile e loketseng ho sete e ikhethang ea litšobotsi tse 'meleng le ho phetha molao feela oa mefuta e sa tšoaneng tsa rabara le rubbers thehiloeng ho bona.

Maiketsetso rabara - ke elastomer ao elasticity tlholeho, metsi ho hanyetsa le e kwahelang ea motlakase thepa. Le tshebediso ya vulcanization thulaganyou e polymers tsa mofuta ona li ka sebetswa ka rabara 'me ebonite.

All thepa polymeric tsa sehlopha sena li classified ho latela kopo ka ka marenene ea morero o khethehileng 'me kakaretso. Maiketsetso rabara kakaretso morero oa - ke e 'ngoe eo e tšoauoa ka rarahaneng thepa haholo botekgeniki (fetoha le maemo, matla durability,' me batho ba bang.). kakaretso morero oa rubbers ba ka katleho sebediswa bakeng sa mefuta e fapaneng mefuta e sa lihlahisoa tsa ea tlhahiso le boima, haholo-holo bakeng sa mabili. Mona kenyeletsa butadiene, butadiene-methylstyrene, isoprene rubbers, le isobutylene-isoprene copolymer (monoethyl rabara).

Maiketsetso rabara e kamehla le morero o khethehileng kapa tse 'maloa fapaneng e mong karolo e ikhethang e fana ka phahameng sehlopheng ditlhoko khethehileng bakeng sa tshebetso sehlahisoa ka maemo a feteletseng. Ka mohlala, nitrile E tsebahala ka oli lona phahameng le peterole manganga. Fluorinated - e babatsehang le gasket ka phahameng mogote botsitso (200 ° C). Tsejoang hape polysulfide rabara maiketsetso, vinylpyridine, urethanes, 'me tse ling tse halogenated isobutylene.

Ho sa tsotellehe ho se tšoane hona ea thepa polymeric ka sebopeho le thepa, ho letsatsi, ntshetsopele tsoela pele sebakeng sena, ho ba khona ho kopana le e kile ua hōla hlokoang ke bareki fapaneng libakeng tse fapaneng.