Polyurethane roba hatimi, da aka yi daga kayan aikin roba na polyurethane, suna da mahimmanci a cikin aikace-aikacen masana'antu masu yawa. Wadannan hatimai suna zuwa ta nau'i-nau'i daban-daban, ciki har da O-rings, V-rings, U-rings, Y-rings, hatimin rectangular, nau'i mai nau'i na al'ada, da masu wanki.
Polyurethane roba, polymer roba, gada tsakanin roba na halitta da na al'ada robobi. An fi amfani da shi wajen sarrafa matsi na takarda, robar polyurethane da ake magana a kai shine na farko na nau'in simintin polyester. An haɗa shi daga adipic acid da ethylene glycol, wanda ya haifar da polymer tare da nauyin kwayoyin halitta na kimanin 2000. Wannan polymer yana kara amsawa don samar da prepolymer tare da ƙungiyoyin ƙarshen isocyanate. Sai a haxa prepolymer da MOCA (4,4′-methylenebis(2-chloroaniline)) kuma a jefa a cikin gyaggyarawa, sannan vulcanization na biyu ya biyo baya don samar da samfuran roba na polyurethane tare da matakan taurin daban-daban.
Za a iya keɓance taurin hatimin roba na polyurethane don saduwa da takamaiman buƙatun sarrafa takarda, kama daga 20A zuwa 90A akan ma'aunin taurin Shore.
Mabuɗin Halayen Aiki:
- Resistance Wear na Musamman: Rubber Polyurethane yana nuna juriya mafi girma tsakanin kowane nau'in roba. Gwaje-gwajen dakin gwaje-gwaje sun nuna cewa juriyar sa ya ninka sau 3 zuwa 5 na roba na dabi'a, tare da aikace-aikacen zahirin duniya galibi suna nunawa har sau 10 dorewa.
- Ƙarfin Ƙarfi da Ƙarfafawa: A cikin Shore A60 zuwa A70 kewayon hardness, polyurethane roba yana nuna babban ƙarfi da kyakkyawan elasticity.
- Babban Cushioning da Shock Absorption: A dakin da zafin jiki, kayan aikin roba na polyurethane na iya ɗaukar 10% zuwa 20% na kuzarin girgiza, tare da ƙimar sha mai girma a ƙarar mitar girgiza.
- Kyakkyawan Mai da Juriya na Sinadarai: Rubber Polyurethane yana nuna ƙarancin alaƙa ga mai ma'adinai mara iyaka kuma ya kasance mafi yawan man fetur (irin su kananzir da man fetur) da mai (kamar na'ura mai aiki da ƙarfi da mai mai mai mai mai), wanda ya ƙware rubbers na gabaɗaya da robar nitrile. Duk da haka, yana nuna kumburi mai mahimmanci a cikin alcohols, esters, da hydrocarbons masu ƙanshi.
- Babban Haɓakawa: Yawanci sama da 0.5.
- Ƙarin Kayayyakin: Kyakkyawan juriya mai ƙarancin zafi, juriya na ozone, juriya na radiation, rufin lantarki, da kaddarorin mannewa.
Aikace-aikace:
Idan aka ba shi mafi girman kaddarorinsa na zahiri da na inji, roba polyurethane akai-akai ana aiki da shi a cikin aikace-aikace masu inganci, gami da samfuran juriya, abubuwan da ke da ƙarfi mai ƙarfi, da ƙarfi mai ƙarfi, manyan abubuwan haɗin gwiwa. Yana da amfani mai yawa a cikin masana'antu daban-daban:
- Machinery da Automotive: Kera manyan abubuwan buffer braking, anti-vibration robar, maɓuɓɓugan roba, couplings, da kayan aikin masaku.
- Kayayyakin Resistant Mai: Samar da rollers, hatimi, kwantenan mai, da hatimin mai.
- Muhalli mai tsauri: Ana amfani dashi a cikin bututun isar da kaya, kayan aikin niƙa, fuska, tacewa, tafin ƙafar ƙafa, ƙafafu masu jujjuyawa, bushings, pads, da tayoyin keke.
- Cold Dannawa da Lankwasawa: Yin hidima azaman abu don sabbin hanyoyin lanƙwasa sanyi da lanƙwasawa, maye gurbin baƙin ƙarfe wanda ke ɗaukar lokaci da tsada.
- Rubber Foam: Ta hanyar haɓaka halayen ƙungiyoyin isocyanate tare da ruwa don saki CO2, za a iya samar da roba mai sauƙi mai sauƙi tare da kyawawan kayan aikin injiniya, mai kyau don haɓakawa, zafi mai zafi, sautin murya, da aikace-aikacen motsa jiki.
- Aikace-aikacen likita: Ana amfani da su a cikin kayan aikin roba, tasoshin jini na wucin gadi, fatar roba, bututun jiko, kayan gyara, da aikace-aikacen hakori.
Lokacin aikawa: Satumba-17-2025