Indlela ye-Prepolymer:
Inqubo ye-prepolymer foaming ihilela kuqala ukulungisa i-prepolymer kusuka (ingxenye emhlophe) kanye (ingxenye emnyama). Bese, amanzi, i-catalyst, i-surfactant, nezinye izithasiselo zengezwa ku-prepolymer futhi zixutshwe ngaphansi-ukushukumisa isivinini esikhulu ukuze kukhihlize amagwebu. Ngemva kokwelapha, iguga ezingeni lokushisa elithile.
I-Semi-Indlela ye-Prepolymer:
I-semi-inqubo ye-prepolymer yokwenza amagwebu ihilela kuqala ukulungisa i-prepolymer kusuka engxenyeni ye-polyether polyol (ingxenye emhlophe) kanye ne-disocyanate (ingxenye emnyama). Bese, ingxenye esele ye-polyether noma i-polyester polyol, i-disocyanate, amanzi, i-catalyst, i-surfactant, nezinye izithasiselo ziyengezwa futhi zixutshwe ngaphansi-okushukumisayo okuphezulu ukuze kukhihlize amagwebu.
Isinyathelo{{0}Inqubo Yokugwebulisa Isinyathelo esisodwa:
Kule nqubo, i-polyether noma i-polyester polyol (ingxenye emhlophe) kanye ne-polyisocyanate (ingxenye emnyama), amanzi, i-catalyst, i-surfactant, i-ejenti eyenza amagwebu, nezinye izithasiselo zengezwa esinyathelweni esisodwa futhi zixutshwe ngaphansi-ukunyakaziswa kwesivinini esikhulu ngaphambi kokukhihliza amagwebu.
Isinyathelo esisodwa{{0}senqubo yokukhipha amagwebu inqubo esetshenziswa kakhulu. Enye indlela iwugwebu olwenziwa ngesandla, olulula kakhulu. Kala kahle zonke izinto ezingavuthiwe, zibeke esitsheni, bese uzixuba kahle ngokushesha. Bese uthela ingxube esikhunjeni noma endaweni lapho ipulasitiki yegwebu idinga ukugcwaliswa. Qaphela: Uma ukala, qiniseka ukuthi ungeza i-polyisocyanate (ingxenye emnyama) ekugcineni.
Igwebu le-polyurethane eliqinile ngokuvamile lifakwe amagwebu ekamelweni lokushisa, futhi inqubo yokubumba ilula. Ngokusekelwe ezingeni lemishini ekwakheni, ingahlukaniswa ibe amagwebu okwenziwa ngesandla kanye namagwebu emishini; ngokusekelwe ekucindezelweni ngesikhathi sokukhihliza amagwebu, ingahlukaniswa ibe -okuphuma amagwebu okucindezelayo kanye nokukhipha amagwebu ngomfutho ophansi; ngokusekelwe endleleni yokubumba, ingahlukaniswa ibe ukuphonsa amagwebu kanye nokufutha ukugwedla.