Isingeniso ku-BDMAEE kanye nokusetshenziswa kwayo ku-Soft Foam

I-N,N,N',N'-Tetramethylethylenediamine (BDMAEE)** iyisidakamizwa esisetshenziswa kabanzii-catalyst ye-polyurethaneeyaziwa ngokuguquguquka kwayo kanye nokusebenza kahle kwayo ekukhiqizeni izinhlobo ezahlukene zama-polyurethane foam. Le nhlanganisela yezinto eziphilayo, enefomula yama-molecule C6H16N2, idlala indima ebalulekile ekukhiqizweni kwama-polyurethane foam athambile, avame ukusetshenziswa efenisha, embhedeni, ezihlalweni zezimoto, nakwezinye izinhlelo zokusebenza ezihlobene nokunethezeka.

Izici ze-BDMAEE

1. Ukusebenza Kahle Kakhulu: I-BDMAEE iyi-amine catalyst esebenza kahle kakhulu, esiza ukusabela phakathi kwama-isocyanates nama-polyols ukwakha i-polyurethane. Ukuzinza kwayo okuqinile kusheshisa inqubo yokwakheka kwe-polyurethane, kuqinisekisa ukusabela okusheshayo nokuphelele.

2. Ukuhambisana: I-BDMAEE iyahambisana nohlu olubanzi lwezinhlobo ze-polyurethane. Ingasetshenziswa kanye nezinye izinto zokuthuthukisa ukwakheka kwe-foam, njengokuqina, ubulukhuni, kanye nokuqina.

3. Ukuguquguquka: Lesi sikhuthazi sinezinga lokubilisa eliphansi, okwenza sifaneleke ukusetshenziswa okudinga izikhathi zokuphola okusheshayo. Kodwa-ke, lokhu kuguquguquka kudinga ukuphathwa ngokucophelela ukuze kuncishiswe ukukhishwa kwegesi nokuqinisekisa ukuphepha ngesikhathi senqubo yokukhiqiza.

4. Ukuzinza Kwe-Hydrolytic: I-BDMAEE yaziwa ngokuzinza kwayo okuhle kwe-hydrolytic, okusho ukuthi ihlala isebenza ngisho nalapho kukhona umswakama. Lesi sici sizuzisa kakhulu ezindaweni zokukhiqiza ezinomswakama noma lapho igwebu lingase livezwe khona kumswakama.

Isimiso SokusetshenziswaI-BDMAEEku-Soft Foam

Ukukhiqizwa kwe-foam ethambile ye-polyurethane kuhilela ibhalansi ebucayi yokusabela kwamakhemikhali kanye nezinqubo zomzimba. I-BDMAEE idlala indima ebalulekile ekufezeni izici ze-foam ezifiselekayo ngezindlela ezilandelayo:

1. Ukusabela Kwe-Gelling: I-BDMAEE ivuselela ukusabela kwe-gelling phakathi kwezingxenye ze-polyol ne-isocyanate. Lokhu kusabela kwakha ukuxhumana kwe-urethane okunikeza uhlaka lwesakhiwo se-foam. Izinga lokusabela kwe-gelling lithinta ngqo isakhiwo seseli le-foam, ubuningi, kanye nezakhiwo zemishini.

2. Ukusabela Kokuvunguza: Ngaphezu kokusabela kwe-gelling, i-BDMAEE iphinde ivuselele ukusabela kokuvunguza, lapho amanzi ephendula khona nge-isocyanate ukuze akhiqize igesi ye-carbon dioxide. Le gesi yakha amabhamuza ngaphakathi kwe-polymer matrix, idala isakhiwo seseli se-foam. Ibhalansi phakathi kokusabela kwe-gelling nokuvunguza, okuthonywe yi-BDMAEE, ibalulekile ekufezeni isakhiwo seseli esifanayo kanye nobumnene obufunekayo.

3. Izakhiwo Zefoam Zokulungisa Kahle: Ngokulungisa ukuhlushwa kwe-BDMAEE, abakhiqizi bangalawula amazinga okusabela, okuthi kamuva kuthinte ukuqina kwefoam, ukuguquguquka kwayo, kanye nokuqina kwayo. Isibonelo, ukuhlushwa okuphezulu kwe-BDMAEE kungaholela ezikhathini zokuphola okusheshayo kanye nezakhiwo zamaseli ezincanyana, kuyilapho ukuhlushwa okuphansi kungaveza amafoam athambile, anwebekayo.

4. Ukuzinza Nokungaguquguquki: Ukuzinza kwe-hydrolytic kwe-BDMAEE kuqinisekisa ukusebenza okulinganayo kuzo zonke izinhlobo ze-foam. Lokhu kuthembeka kubalulekile ekukhiqizweni okukhulu lapho ukufana kwezakhiwo ze-foam kubalulekile ekusetshenzisweni kokugcina.

Isiphetho

I-BDMAEE iyisikhuthazo esibalulekile ekukhiqizweni kwe-foam ethambile ye-polyurethane, enikeza ukusebenza kahle, ukuhambisana, kanye nokuzinza. Amandla ayo okulinganisela ukusabela kwe-gelling kanye nokuvunguza kuvumela abakhiqizi ukuthi bakhiqize ama-foam asezingeni eliphezulu anezakhiwo ezithile ezenzelwe izinhlelo zokusebenza ezahlukahlukene. Ukuqonda izici nezimiso zokusetshenziswa kwe-BDMAEE kusiza ekwenzeni ngcono inqubo yokukhiqiza i-foam, ukuqinisekisa ukusebenza okuphezulu emikhiqizweni yokugcina.