Bambance-bambance tsakanin polyurethane MDI da tsarin TDI don injin elastomer
Gabatarwa:
Na'urorin elastomer na polyurethane suna taka muhimmiyar rawa a masana'antar zamani.Duk da haka, idan yazo da zabar tsarin polyurethane, akwai manyan zaɓuɓɓuka guda biyu: tsarin MDI (diphenylmethane diisocyanate) da tsarin TDI (terephthalate).Wannan labarin zai bincika bambance-bambancen da ke tsakanin waɗannan tsarin guda biyu don taimakawa mai karatu yin zaɓi na musamman don takamaiman aikace-aikacen.
I. Elastomer Machines na Polyurethane MDI Systems
Ma'anar da Haɗawa: tsarin MDI shine polyurethane elastomer da aka ƙera daga diphenylmethane diisocyanate a matsayin babban kayan albarkatun kasa, yawanci yana dauke da kayan taimako kamar polyether polyol da polyester polyol.
Fasaloli da Fa'idodi:
Ƙarfin ƙarfi da juriya na abrasion: MDI tsarin elastomers suna da kyawawan kaddarorin jiki kuma suna kula da kwanciyar hankali a cikin yanayin damuwa.
Kyakkyawan juriya na tsufa: elastomers tare da tsarin MDI suna da juriya mai kyau ga iskar shaka da hasken UV da kuma tsawon rayuwar sabis.
Kyakkyawan juriya ga mai da kaushi: MDI elastomers suna dawwama lokacin da aka fallasa su da sinadarai kamar mai da kaushi.
Yankunan aikace-aikacen: Ana amfani da elastomers na tsarin MDI a cikin masana'antar kera motoci, kayan wasanni da samfuran masana'antu.
II.Polyurethane TDI tsarin elastomer inji
Ma'anar da abun da ke ciki: Tsarin TDI shine elastomer na polyurethane wanda aka ƙera tare da terephthalate a matsayin babban kayan albarkatun ƙasa, yawanci yana ɗauke da kayan taimako kamar polyether polyol da polyester polyol.
Fasaloli da Fa'idodi:
Kyakkyawan elasticity da taushi: TDI tsarin elastomers suna da haɓaka da laushi mai laushi kuma sun dace da samfuran da ke buƙatar jin daɗin hannu mafi girma.
Kyakkyawan aikin lanƙwasa ƙananan zafin jiki: TDI tsarin elastomers har yanzu suna da kyakkyawan aikin lankwasawa a cikin ƙananan yanayin zafi, kuma ba su da sauƙi don lalata ko karya.
Ya dace da hadaddun sifofi: TDI elastomers sun yi fice wajen kera hadaddun sifofi don biyan buƙatun ƙira iri-iri.
Aikace-aikace: TDI elastomers ana amfani da su sosai a cikin kayan daki da katifa, masana'anta na takalma da kayan marufi.
III.Kwatanta tsarin MDI da TDI
A fagen injunan elastomer na polyurethane, tsarin MDI da TDI suna da halaye daban-daban da fa'idodi.Tebur masu zuwa za su ƙara kwatanta bambance-bambancen su dangane da tsarin sinadarai, kaddarorin jiki, kariyar muhalli da aminci, farashin samarwa da wuraren aikace-aikacen:
| kwatanta abu | Polyurethane MDI tsarin | Polyurethane TDI tsarin |
| tsarin sinadaran | Yin amfani da diphenylmethane diisocyanate a matsayin babban albarkatun kasa | Amfani da terephthalate a matsayin babban albarkatun kasa |
| Halayen amsawa | Babban mataki na crosslinking | ƙasa da haɗin kai |
| kaddarorin jiki | - Babban ƙarfi da juriya | - mai kyau elasticity da taushi |
| - Kyakkyawan juriya tsufa | - Kyakkyawan aikin lankwasawa a ƙananan zafin jiki | |
| - Kyakkyawan mai da juriya mai ƙarfi | - Ya dace da samfurori tare da siffofi masu rikitarwa | |
| Kariyar muhalli da aminci | low isocyanate abun ciki | babban abun ciki na isocyanate |
| Kudin samarwa | farashi mafi girma | ƙananan farashi |
| Filin aikace-aikace | - Mai kera mota | - furniture da katifa |
| - Kayan Wasanni | - Kera takalman takalma | |
| - Kayayyakin masana'antu | - Kayan Marufi |
Kamar yadda ake iya gani daga teburin da ke sama, elastomers na tsarin MDI na polyurethane suna da ƙarfin ƙarfi, juriya na tsufa da juriya na man fetur, kuma sun dace da amfani da su a cikin kera motoci, kayan wasanni da kayayyakin masana'antu.A gefe guda, polyurethane TDI tsarin elastomers yana da kyaun elasticity, sassauci da ƙananan yanayin lankwasa Properties, kuma sun dace don amfani da su a irin waɗannan wurare kamar kayan daki da katifa, masana'antun takalma da kayan marufi.
Har ila yau, ya kamata a lura cewa tsarin MDI ya fi tsada don samarwa, amma yana ba da mafi kyawun kariyar muhalli da aminci.Sabanin haka, tsarin TDI yana da ƙananan farashin samarwa amma mafi girman abun ciki na isocyanate kuma yana da ɗan ƙarancin yanayi fiye da tsarin MDI.Sabili da haka, lokacin zabar tsarin polyurethane, masana'antun yakamata suyi la'akari da aikin samfur, buƙatun muhalli da ƙuntatawa na kasafin kuɗi don haɓaka shirin samar da mafi dacewa don biyan bukatun aikace-aikacen daban-daban.
IV.Zaɓuɓɓukan Aikace-aikacen da Shawarwari
Zaɓin tsarin da ya dace don aikace-aikace daban-daban: Yin la'akari da buƙatun samfurin da halaye na yankin aikace-aikacen, zabar elastomers tare da tsarin MDI ko TDI yana tabbatar da mafi kyawun aiki da ƙimar farashi.
Yin yanke shawara game da aikin samfur da kasafin kuɗi: lokacin zabar tsarin, aikin samfur, bukatun muhalli da ƙuntatawa na kasafin kuɗi ana la'akari da su don haɓaka mafi kyawun samar da mafita.
Ƙarshe:
Polyurethane MDI da TDI tsarin elastomers kowannensu yana da nasu abũbuwan amfãni kuma sun dace da bukatun samfur a wurare daban-daban.Fahimtar bambance-bambancen zai taimaka wa masana'antun yin zaɓin da aka sani don tabbatar da cewa samfuransu suna aiki da kyau a takamaiman aikace-aikace.
Lokacin aikawa: Agusta-01-2023