Rubber wani nau'i ne na kayan aiki mai mahimmanci na polymer, a ƙarƙashin aikin ƙaramin ƙarfi na waje, zai iya nuna babban matakin nakasa, kuma bayan an cire ƙarfin waje, zai iya komawa zuwa ainihin siffarsa.Saboda da high elasticity na roba, shi ne yadu amfani a cushioning, shockproof, tsauri sealing, da dai sauransu A aikace a cikin bugu masana'antu hada daban-daban roba rollers da bugu barguna.Tare da ci gaban masana'antar roba, samfuran roba sun haɓaka daga amfani guda ɗaya na roba na halitta zuwa nau'ikan roba iri-iri.
1. roba na halitta
Rubber na halitta ya mamaye roba hydrocarbons (polyisoprene), wanda ya ƙunshi ƙaramin adadin furotin, ruwa, acid resin, sugars da inorganic salts.Rubber na halitta yana da babban elasticity, ƙarfin ƙarfi mai ƙarfi, kyakkyawan juriya mai tsagewa da rufin lantarki, juriya mai kyau da juriya na fari, kyakkyawan tsari mai kyau, roba na halitta yana da sauƙin haɗi tare da sauran kayan, kuma gabaɗayan aikinsa ya fi mafi yawan roba roba.Rashin gazawar roba na halitta shine rashin juriya ga oxygen da ozone, mai sauƙin tsufa da lalacewa;rashin juriya ga mai da kaushi, ƙananan juriya ga acid da alkali, ƙananan juriya na lalata;low zafi juriya.Yanayin zafin aiki na roba na halitta: game da -60℃~+80℃.Ana amfani da roba na halitta don yin tayoyi, takalman roba, hoses, kaset, insulating layers da sheath na wayoyi da igiyoyi, da sauran samfuran gama-gari.Roba na halitta ya dace musamman don kera na'urorin kawar da girgizawar torsional, injin girgiza injin, tallafin injin, abubuwan dakatarwar roba-karfe, diaphragms, da samfuran gyare-gyare.
2. SBR
SBR shine copolymer na butadiene da styrene.Ayyukan roba na styrene-butadiene yana kusa da na roba na halitta, kuma a halin yanzu shine mafi girman samar da robar roba na gaba ɗaya.Siffofin roba na styrene-butadiene shine juriyar sa, juriyar tsufa da juriya na zafi sun wuce roba na halitta, kuma nau'in sa ya fi na roba.Rashin lahani na roba na styrene-butadiene sune: ƙananan elasticity, rashin juriya mara kyau da juriya na hawaye;rashin aikin aiki mara kyau, musamman rashin yarda da kai da ƙarancin ƙarfin roba.Yanayin zafin jiki na roba styrene-butadiene: kusan -50℃~+100℃.Ana amfani da roba na Styren butadiene musamman don maye gurbin roba na halitta don yin taya, zanen roba, hoses, takalman roba da sauran samfuran gama-gari.
3. Nitrile roba
Nitrile rubber shine copolymer na butadiene da acrylonitrile.Rubber Nitrile yana da kyakkyawan juriya ga man fetur da mai aliphatic hydrocarbon mai, na biyu kawai ga roba polysulfide, acrylic ester da roba na fluorine, yayin da nitrile roba ya fi sauran rubbers na gaba ɗaya.Kyakkyawan juriya mai zafi, kyakkyawan iska mai kyau, juriya da juriya na ruwa, da mannewa mai ƙarfi.Rashin lahani na roba na nitrile shine rashin juriya mai sanyi da juriya na ozone, ƙarancin ƙarfi da elasticity, ƙarancin juriyar acid, ƙarancin wutar lantarki, da ƙarancin juriya ga kaushi na polar.Yanayin zafin jiki na roba nitrile: kusan -30℃~+100℃.Nitrile robar ana amfani da shi ne don kera kayayyaki daban-daban masu jure mai, kamar su hoses, kayan rufewa, rollers na roba, da sauransu.
4. roba nitrile na hydrogenated
Hydrogenated nitrile roba shine copolymer na butadiene da acrylonitrile.Ana samun robar nitrile mai hydrogenated ta hanyar cikakken ko juzu'i na hydrogenating biyu bond a cikin butadiene na NBR.Rubber nitrile hydrogenated yana da ƙarfin ƙarfin injina da juriya na abrasion, juriya mai zafi ya fi NBR kyau lokacin da aka haɗa shi da peroxide, da sauran kaddarorin iri ɗaya ne da roba na nitrile.Rashin amfanin roba nitrile hydrogenated shine mafi girman farashinsa.Yanayin zafin jiki na roba nitrile hydrogenated: game da -30℃~+150℃.Robar nitrile mai ruwa da ruwa ana amfani da shi ne don samfuran juriya mai juriya da yanayin zafi.
5. Ethylene propylene roba
Ethylene propylene roba copolymer ne na ethylene da propylene, kuma gabaɗaya an raba shi zuwa yuan ethylene propylene roba yuan biyu da yuan ethylene propylene roba.Ethylene-propylene roba yana da kyakkyawan juriya na sararin samaniya, juriya na ultraviolet, juriya na yanayi da juriya na tsufa, matsayi na farko a tsakanin rubbers na gaba ɗaya.Rubber Ethylene-propylene yana da ingantaccen rufin lantarki, juriya na sinadarai, haɓakar tasiri, juriya na acid da alkali, ƙarancin ƙayyadaddun nauyi, kuma ana iya amfani dashi don cikawa mai girma.Juriyar zafi na iya kaiwa 150°C, kuma yana da juriya ga kaushi-ketones, esters, da dai sauransu, amma roba ethylene propylene ba ta da juriya ga hydrocarbons na aliphatic da hydrocarbons na aromatic.Sauran kaddarorin na zahiri da na inji na roba na ethylene propylene sun dan yi kasa da roba na halitta kuma sun fi na roba butadiene na styrene.Rashin lahani na roba na ethylene-propylene shi ne cewa yana da ƙarancin mannewa kai da mannewa juna, kuma ba shi da sauƙin haɗawa.Yanayin zafin jiki na roba na ethylene propylene: kusan -50℃~+150℃.Ethylene-propylene roba ana amfani dashi galibi azaman rufin kayan aikin sinadarai, waya da sheathing na USB, bututun tururi, bel mai ɗaukar zafi, samfuran roba na mota da sauran samfuran masana'antu.
6. roba siliki
Silicone roba roba ne na musamman tare da silicon da oxygen atom a cikin babban sarkar.Silicon element yana taka muhimmiyar rawa a cikin roba na silicone.Babban halayen roba na silicone sune duka juriya mai zafi (har zuwa 300°C) da ƙarancin zafin jiki (mafi ƙanƙanta -100°C).A halin yanzu shine mafi kyawun roba mai jure zafin zafi;a lokaci guda, silicone rubber yana da ingantaccen rufin lantarki kuma yana da kwanciyar hankali ga iskar oxygen da iskar oxygen.Yana da matukar juriya da rashin kuzari.Rashin amfani da roba na silicone ƙananan ƙarfin injina ne, ƙarancin juriyar mai, juriya mai ƙarfi, juriya na acid da alkali, wahalar vulcanize, kuma mafi tsada.Silicone roba zazzabi aiki: -60℃~+200℃.Ana amfani da roba na silicone don yin samfura masu ƙarfi da ƙarancin zafin jiki (hoses, like, da dai sauransu), da waya mai juriya da zafin jiki da na USB.Saboda ba shi da guba kuma marar ɗanɗano, ana kuma amfani da robar silicone a cikin masana'antar abinci da na likitanci.
7. Polyurethane roba
Polyurethane roba yana da elastomer da aka kafa ta hanyar polymerization na polyester (ko polyether) da mahadi diisocyanate.Rubber polyurethane yana da kyakkyawan juriya na abrasion, wanda shine mafi kyau tsakanin kowane nau'in roba;roba polyurethane yana da babban ƙarfi, elasticity mai kyau da ingantaccen juriya mai.Rubber polyurethane kuma yana da kyau a juriya na ozone, juriyar tsufa, da matsananciyar iska.Abubuwan da ke tattare da roba na polyurethane sune rashin juriya na zafin jiki, ƙarancin ruwa da juriya na alkali, da ƙarancin juriya ga hydrocarbons na kamshi, chlorinated hydrocarbons, da sauran abubuwan narkewa kamar ketones, esters, da alcohols.Amfani da zafin jiki na roba polyurethane: game da -30℃~+80℃.Ana amfani da roba na polyurethane don yin tayoyin kusa da sassa, gaskets, samfuran girgiza, robar roba, da juriya, ƙarfi mai ƙarfi da samfuran roba.
Lokacin aikawa: Yuli-07-2021