Robar roba tana ɗaya daga cikin manyan kayan roba guda uku kuma ana amfani da ita sosai a fannoni daban-daban na masana'antu, tsaron ƙasa, sufuri da rayuwar yau da kullun. Robar roba mai inganci da aiki muhimmin abu ne na ci gaba wanda ake buƙata don ci gaban sabon zamani, kuma muhimmin tushen dabarun ƙasa ne.
Kayan roba na musamman na roba suna nufin kayan roba waɗanda suka bambanta da kayan roba na yau da kullun kuma suna da halaye na musamman kamar juriya mai yawa da ƙarancin zafin jiki, juriyar tsufa, juriyar ablation, da juriyar sinadarai, galibi robar nitrile mai hydrogenated (HNBR), robar thermoplastic vulcanizate (TPV), robar silicone, robar fluorine, robar fluorosilicone, robar acrylate, da sauransu. Saboda halayensa na musamman, kayan roba na musamman sun zama mahimman kayan da ake buƙata don haɓaka manyan dabarun ƙasa da fannoni masu tasowa kamar sararin samaniya, masana'antar tsaro ta ƙasa da sojoji, bayanan lantarki, makamashi, muhalli, da teku.
1. Robar nitrile mai hydrogenated (HNBR)
Robar nitrile mai hydrogenated wani abu ne mai cike da roba mai cikakken sinadarin hydrogen wanda aka samu ta hanyar amfani da sinadaran butadiene a kan sarkar robar nitrile don inganta juriyar zafi da tsufa na robar nitrile butadiene (NBR). Babban fasalinsa shine ana iya amfani da shi na dogon lokaci a zafin jiki na 150 ℃, kuma har yanzu yana iya kula da manyan kaddarorin jiki da na injiniya a zafin jiki mai yawa, wanda zai iya biyan buƙatun musamman na juriyar zafin jiki mai yawa da juriyar sinadarai na kayan aiki a cikin motoci, sararin samaniya, filin mai da sauran fannoni. Bukatun, waɗanda ake amfani da su sosai, kamar hatimin mai na mota, abubuwan da ke cikin tsarin mai, bel ɗin watsawa na mota, akwatunan riƙe haƙo da pistons don laka, bugu da na'urorin roba na yadi, hatimin sararin samaniya, kayan shaye-shaye, da sauransu.
2. Thermoplastic Vulcanizate (TPV)
Vulcanizates na Thermoplastic, waɗanda aka taƙaita su a matsayin TPVs, wani nau'i ne na musamman na elastomers na thermoplastic waɗanda ake samarwa ta hanyar "ƙyamar ƙwaya" na gaurayen thermoplastics da elastomers marasa miscible, watau zaɓin lokacin elastomer yayin haɗuwa da thermoplastic Haɗin ƙwaya na jima'i. Haɗa ƙwaya na lokaci guda na matakin roba a gaban wakilin haɗin gwiwa (mai yiwuwa peroxides, diamines, masu haɓaka sulfur, da sauransu) yayin haɗuwa da thermoplastics yana haifar da matrix na thermoplastic mai ci gaba wanda ya ƙunshi roba mai haɗin gwiwa da aka watsa. Barbashi a cikin matakin, vulcanization mai ƙarfi yana haifar da ƙaruwa a cikin danko na roba, wanda ke haɓaka juyawar lokaci kuma yana samar da yanayin matakai da yawa a cikin TPV. TPV yana da duka aikin da yayi kama da robar thermosetting da kuma saurin sarrafawa na thermoplastics, wanda galibi ana bayyana shi a cikin babban rabo na aiki/farashi, ƙira mai sassauƙa, nauyi mai sauƙi, kewayon zafin aiki mai faɗi, sauƙin sarrafawa, ingancin samfura da kwanciyar hankali na girma. Ana iya sake amfani da shi, ana amfani da shi sosai a sassan motoci, ginin wutar lantarki, hatimi da sauran fannoni.
3. Roba ta silicone
Robar silicone wani nau'in roba ne na musamman wanda aka yi da polysiloxane mai layi wanda aka haɗa shi da kayan ƙarfafawa, kayan cikawa masu aiki da ƙari, kuma ya zama elastomer mai kama da hanyar sadarwa bayan an yi amfani da shi a ƙarƙashin yanayin dumama da matsin lamba. Yana da kyakkyawan juriya mai ƙarfi da ƙarancin zafin jiki, juriya ga yanayi, juriya ga ozone, juriya ga baka, kariya daga wutar lantarki, juriya ga danshi, iska mai ƙarfi da kuma rashin ƙarfin jiki. Yana da aikace-aikace iri-iri a masana'antar zamani, lantarki da lantarki, motoci, gini, kiwon lafiya, kulawa ta sirri da sauran fannoni, kuma ya zama kayan aiki mai inganci mai mahimmanci a fannin sararin samaniya, tsaro da masana'antar soja, masana'antu masu wayo da sauran fannoni.
4. Roba mai sinadarin fluorine
Robar Fluorine tana nufin wani abu na roba mai ɗauke da fluorine wanda ke ɗauke da atom ɗin fluorine a kan atom ɗin carbon na babban sarkar ko sarƙoƙi na gefe. Abubuwan da ke tattare da shi na musamman ana tantance su ta hanyar halayen tsarin atom ɗin fluorine. Ana iya amfani da robar Fluorine a zafin jiki na 250°C na dogon lokaci, kuma matsakaicin zafin aiki zai iya kaiwa 300°C, yayin da zafin aikin da aka ƙayyade na robar EPDM da butyl na gargajiya shine 150°C kawai. Baya ga juriyar zafin jiki mai yawa, fluororubber yana da kyakkyawan juriyar mai, juriyar sinadarai, juriyar acid da alkali, kuma cikakken aikin sa shine mafi kyau a cikin dukkan kayan robar elastomer. Ana amfani da shi galibi don juriyar mai na rokoki, makamai masu linzami, jiragen sama, jiragen ruwa, motoci da sauran ababen hawa. Filaye na musamman kamar su rufewa da bututun mai masu jure wa mai sune mahimman kayan aiki ga tattalin arzikin ƙasa da tsaron ƙasa da masana'antar soja.
5. Robar Acrylate (ACM)
Robar Acrylate (ACM) wani elastomer ne da aka samu ta hanyar haɗa acrylate a matsayin babban monomer. Babban sarkar sa ita ce sarkar carbon mai cike da sinadarai, kuma ƙungiyoyin gefen sa ƙungiyoyi ne na polar ester. Saboda tsarin sa na musamman, yana da halaye masu kyau da yawa, kamar juriyar zafi, juriyar tsufa, juriyar mai, juriyar ozone, juriyar UV, da sauransu, halayen injina da halayen sarrafawa sun fi robar fluororubber da silicone kyau, kuma juriyar zafi, juriyar tsufa da juriyar mai suna da kyau. A cikin robar nitrile. Ana amfani da ACM sosai a wurare daban-daban masu zafi da juriyar mai, kuma ya zama kayan rufewa da masana'antar kera motoci ta haɓaka kuma ta haɓaka a cikin 'yan shekarun nan.
Lokacin Saƙo: Satumba-27-2022
