Ama-elastomer e-polyurethane ayizinto ezisebenziseka ngezindlela eziningi ezibonisa izakhiwo ezinhle kakhulu zemishini njengokuqina okuphezulu, ukumelana nokuguguleka kanye nokuqina. Lezi zakhiwo ziwenza afanelekele ukusetshenziswa okuhlukahlukene kwezimboni, okuhlanganisa izingxenye zezimoto, izicathulo, izivalo kanye nokugqoka. Ukukhiqizwa kwama-elastomer e-polyurethane kudinga ukulawulwa okunembile kokusabela kwamakhemikhali okuhilelekile, ikakhulukazi lapho kwakha isibopho se-urethane phakathi kwe-polyol ne-isocyanate. Ama-catalyst e-polyurethane adlala indima ebalulekile lapha.
Ama-catalyst e-polyurethaneziyakwazi ukulawula isivinini kanye nokusebenza kahle kokusabela kwe-polyurethane. Zithinta ibhalansi phakathi kokusabela kwe-gelation (polyol-isocyanate) kanye ne-foaming (water-isocyanate), okunquma ngqo izakhiwo zokugcina ze-elastomer. Ngokukhetha i-catalyst efanele, abakhiqizi bangenza ngcono izimo zokucubungula futhi bahlele izakhiwo zomzimba ze-elastomer ukuze zihlangabezane nezidingo ezithile zokusetshenziswa.
Esinye isihluthulelo esiyinhloko esisetshenziswa ekukhiqizweni kwama-elastomer e-polyurethane yi-MXC-37, eyaziwa nangokuthi i-dimethylethanolamine ether (DMAEE).I-MXC-37 iyi-catalyst ye-amine ekhipha ukungcola okuncane, enephunga eliphansi esetshenziswa kabanzi ezinhlelweni ezidinga ukukhishwa okuncane kwe-amine kanye nokusebenza okuphezulu. Izakhiwo ezihlukile ze-MXC-37 ziyenza ifaneleke kakhulu kwi-foam ethambile esekwe ku-ester, i-foam ye-microcellular, i-elastomers, i-reaction injection molding (RIM) kanye nezinhlelo zokupakisha i-foam eqinile.
I-MXC-37ku-Polyurethane Elastomers
I-MXC-37inikeza izinzuzo eziningana ekukhiqizweni kwama-elastomer e-polyurethane. Kuyisikhuthazi esisebenza kakhulu esithuthukisa inqubo yokugqwala futhi sifaneleka kakhulu ekwakhiweni okunokuqukethwe kwamanzi amaningi. Umsebenzi wayo wokugqwala okuphezulu ukhuthaza ukwakheka kwama-bubble okuphumelelayo kanye nesakhiwo samaseli esifanayo, okubalulekile ekusetshenzisweni okufana nama-foam e-microcellular kanye nama-elastomer.
Ekusetshenzisweni kwe-elastomer, i-MXC-37 iqinisekisa ukuphola okusheshayo nokulinganayo, okuthuthukisa izakhiwo zemishini ze-elastomer, njengokuqina okuthuthukisiwe kokuqina kanye nokuguquguquka. Lokhu kwenza kube ukukhetha okuthandwayo ekukhiqizweni kwezingxenye ze-elastomer eziqinile ezidinga ukuqina okuphezulu, njengezivalo, ama-gasket kanye nezingxenye zezimoto.
Ngaphezu kwalokho, iphunga eliphansi kanye nezakhiwo zokukhipha ugesi ze-MXC-37 nazo ziyinzuzo enkulu, ikakhulukazi ekusetshenzisweni okuzwela iphunga. Iphunga le-amine elivame ukuhlotshaniswa nama-catalyst e-polyurethane liyancishiswa uma kusetshenziswa i-MXC-37, okwenza ifaneleke emikhiqizweni ethintana ngqo nabathengi, njengezicathulo nezinto zokuhlobisa.
Izicelo Ezihlukahlukene
Ukuguquguquka kwe-MXC-37 akugcini nje kuma-elastomer, kodwa futhi kudlulela nakwezinye izinhlelo ze-polyurethane foam. Ekusetshenzisweni kwe-microcellular foam, kusiza ukukhiqiza ama-foam anezimbobo ezincane nezifanayo, okuthuthukisa ukumuncwa kwe-shock kanye nezakhiwo zokusika izinto. Ekubunjweni kwe-reaction injection (RIM), i-MXC-37 isiza ekubumbeni ngokushesha izingxenye eziyinkimbinkimbi, kwandise umkhiqizo, futhi ikhiqize izingxenye ezilula nezisebenza kahle zezinhlelo zokusebenza zezimoto nezezimboni.
Ngaphezu kwalokho, i-MXC-37 ingasetshenziswa ekufakweni kwe-foam eqinile, lapho umsebenzi wayo wokufaka i-foam ephezulu uqinisekisa ukuvikela nokuvikela okusebenzayo. Izakhiwo ze-catalyst eziphansi zephunga kanye nokukhipha ukungcola nazo zizuzisa lezi zinhlelo zokusebenza, zinciphisa umthelela emvelweni futhi zithuthukise izimo zomsebenzi.
Isiphetho
Ekuphetheni, ama-catalyst e-polyurethane anjengeI-MXC-37 (i-DMAEE)ziyizingxenye ezibalulekile ekukhiqizweni kwama-polyurethane elastomers nezinye izinhlelo ze-foam. Amandla azo okulawula amazinga okusabela, ukuthuthukisa ikhwalithi ye-foam, nokunciphisa ukukhishwa kwephunga kuzenza zibe yinto ebalulekile ezinhlotsheni eziningi zezicelo zezimboni. I-MXC-37, ngomsebenzi wayo ophezulu wokukhipha igwebu kanye nezakhiwo zokukhipha ukungcola okuncane, inikeza abakhiqizi ikhambi elithembekile lokukhiqiza imikhiqizo ye-polyurethane esebenza kahle kakhulu, kusukela kuma-elastomers kuya kuma-microcellular foam kanye nokupakishwa kwegwebu okuqinile.
Isikhathi sokuthunyelwe: Disemba 24-2024