Ukuqonda I-Foam Ye-Polyurethane Evaliwe Nendima Yama-Catalyst E-Polyurethane Ekusetshenzisweni Kwayo

Iyini i-Closed-Cell Polyurethane Foam?

I-polyurethane foam yeseli elivaliwe uhlobo lwezinto zokuvikela ukushisa ezisebenza kahle kakhulu, ezonga amandla kanye nokumelana nomswakama okunamandla, ngakho-ke isetshenziswa kabanzi ezimbonini ezahlukahlukene. Le foam yakhiwe yizimbobo zebhamuza ezigcwele amagesi okuvikela (abizwa ngokuthi ama-blowing agents) asiza ukugcina ukushisa ngaphakathi kwezimbobo. Isakhiwo seseli elivaliwe sithuthukisa ukusebenza kokushisa futhi siyisinqumo esihle kakhulu sezinhlelo zokuvikela ukushisa ezonga amandla.

Enye yezinzuzo eziyinhloko ze-closed cell polyurethane foam ukuminyana kwayo okuphezulu, okwenza ukuthi imelane kahle namanzi. Lokhu kuminyana kwenza kube yisithiyo esisebenzayo somswakama, esibalulekile ezindaweni ezimanzi njenge-attics, izindawo zokukhasa, kanye nezindawo ezingaphansi komhlaba. Ngenxa yokuthi i-closed-cell foam yakha uphawu lokungena komoya, inciphisa ingozi yokungena komswakama, ngaleyo ndlela inciphise ukukhula kwesikhunta, okuthuthukisa ikhwalithi yomoya wangaphakathi futhi kusize endaweni yokuhlala enempilo.

Izindawo Zokufaka Isicelo Sezikhangisi Ze-Polyurethane Ku-Foam Yeseli Evaliwe

Ama-catalyst e-polyurethane adlala indima ebalulekile ekukhiqizweni kwama-foam avaliwe ngokulawula ukusabela kwamakhemikhali okukhiqiza izakhiwo ezihlukile zama-foam. Ama-catalyst afana ne-MXC-C15 kanye ne-MXC-37 asiza ekufezeni izici ezithile zokusebenza ezivumela ama-foam avaliwe ukuthi asetshenziswe ekwakheni nasekushiseni.

I-MXC-C15(3,3′ -iminobis (N, n-dimethylpropylamine), inombolo ye-CAS 6711-48-4, iyisikhuthazi se-amine esingenaphunga eliphansi, esingenawo ugesi esikwazi ukukhetha okuncane ukusabela kwe-urea (isocyanate-water). Lesi sikhuthazi sisekela ukuqina okubushelelezi ezinhlelweni ze-polyurethane eziqinile, okwenza kube ukukhetha okubanzi kwezicelo ezidinga izakhiwo zokuqina ezizinzile neziqhubekayo. Izakhiwo zaso ziwusizo ekusetshenzisweni kuma-foam avaliwe okuvikela uphahla, izinhlelo zodonga nezinye izindawo lapho ukuqina nokumelana nomswakama kubalulekile khona.

I-MXC-37I-(2-(2-(dimethylamino)ethoxy)ethanol, i-CAS No. 1704-62-7), eyaziwa nangokuthi i-DMAEE, iyisikhuthazi se-amine esiguquguqukayo, esikhipha ukungcola okuncane esinomsebenzi ophezulu wokugqwala. Ngenxa yokusebenza kwayo ekwakhiweni okunokuqukethwe kwamanzi amaningi, i-MXC-37 ifaneleka kakhulu ekudaleni amagwebu aphansi, afuthwa ngamanzi. Le sikhuthazi sinciphisa iphunga elijwayelekile le-amine elitholakala kumagwebu futhi sithuthukisa ubuqotho besakhiwo segwebu, okwenza libe usizo ekusetshenzisweni kwamagwebu aphansi. Ukusetshenziswa kwayo okubanzi kufaka phakathi amagwebu athambile, ama-elastomers, kanye negwebu eliqinile lokupakisha, okusiza ekufinyeleleni ukuhambisana namandla emikhiqizweni edinga ukwanda okuqondile nokuzinza.

Izinzuzo ze-Closed-Cell Foam kanye ne-Polyurethane Catalysts

I-polyurethane foam yamaseli avaliwe inokumelana okuhle kokushisa nomswakama, futhi ama-catalyst afana ne-MXC-C15 kanye ne-MXC-37 asekela ukukhiqizwa kwayo okuphumelelayo kanye nokusebenza okuzinzile. Ndawonye, ​​lezi zici zenza i-closed-cell foam ibe yisinqumo ezindaweni lapho ukusebenza kokushisa okuthembekile nokuqina kwesikhathi eside kuyadingeka khona.