Ukufunda kwesisikhwama sokuncedisiwe kanye nepolioli kukho isimo esincinci esifundisa ukubanzi kwezinto ezinikezeli kwindawo yokusetyenziswa. Kodwa leso sicala sikufundisa ngokubanzi kuzo zonke izinto kulesi simano sesicatulo sesingcono kwiimfomu yakho yesikhwebhu kwiindawo zakho zokuhlola. Uyacubungula lezo zinto SANYING isocyanate mdi funa ngokubuchwepheshe kwaye zingena ukubona ukuba zinawo nini ezisebenzayo kwiimbizo neesithathu esonjulene.
Kunezinye ezimbini zikhemikali ezinamaxwebhu, yintlobo yokuqala yehlukwe Isocyanate kunye nokushishwa ngaphandle yehlukwe Polyol. Izikhemikali ezimbini zikhulula kokufika emva kwezinto elisha elungileyo eluhlukwe polyurethane. Akuqho into yokugcina lokunye; yintoni le nto ingakho isiqhaza! Ukuphinda phindaphandle kwesisicatulo kwaye zisetyenziswa ukufumana into entsha. Umthengiso wakho wenze imibiko engasenziwe yindlela efanelekayo.
Siyabelana nizilungiselelo zomoya ezininzi kuyo ezifuna ukuba zikhuliswe njengemfundi wendlela yokugcina okanye ukuba zingabona ngokwesobizo. Izilungiselelo zikhulula ukusetyenziswa kwaye zisetyenziswa ngaphandle kokuba zibuyele kuwonke. Izilungiselelo zikhulula ukusetyenziswa kwaye zisetyenziswa ngaphandle kokuba zibuyele kuwonke. Zikhulula ukusetyenziswa kwaye zisetyenziswa ukukholelwa kwezimbali ezimbili kwi-reyikshini lespeshiya le-isocyanate kunye nepolyol. Ukusetyenziswa kwezilungiselelo zakuhlula ukusetyenziswa kwaye zisetyenziswa ngokushesha, uzoba ukuba zisetyenziswa ngokushesha, uzoba ukuba zisetyenziswa ngokushesha.
Umthi wemperethenti kunye nesiphuzu siyizinto ezimbini ezincedwa lokuvavanya umphathiso wesithelo sokusetyenziswa kwe-isocyanate kunye ne-polyol. Umphathiso omtshato okuqhelekileyo nokuphukumisa kufuneka kube ngqukuqheleleyo. Ukuthi xa kune ephakathi lwenziwayo kunye nokuphukumisa, kune enkxaso yokuqhelekelayo yokusebenza. Ngokubanzi benziwayo bese bangaphambili njengoko babenzi ngokushesha, lokungababaliselwe ukuba abangene ngendaweni yabo. Ngokugcina, phakathi kwemperethenti elincinci kunye nokuphukumisa olincinci, usithelo usetyenziswa kususela. Ukuphawula amapara amanze amanye amagama kuhlu lokuhlola ukuba ulwandle lwaziwe iindlela zibe lizoqhubekayo kunye nezinto ezidingekiyo. polyol isocyanate i-Polyols iyinkxaso enjalo yezinto ezisetyenziswa kwe-isocyanate, ngoba yinkxaso engavela ngokusebenzela ngokubonisa ukuba isetyenziswa nge-isocyanates ufake i-polyurethane. I-Polyalcans, njengezinto ezininzi ezibekwe ngamandla, baye bazifuna izinto ezikhululekileyo kunye nezinye izinto zokusebenza. Amalwli we-Polyols angaba esilandelini, futhi amanye amagama amaningi amahlukeleleyo amahlukeleleyo. SANYING
I-Polyols yayisebenza njenge-ncwadi yesithelo sokusetshenziswa kwe-isocyanate, ngoba yinkxaso engavela ngokusebenzela ngokubonisa ukuba isetyenziswa nge-isocyanates ufake i-polyurethane. I-Polyalcans, njengokusibiwe ngamandla, baye bazifuna izinto ezikhululekileyo kunye nezinye izinto zokusebenza. Amalwli we-Polyols angaba esilandelini, futhi amanye amagama amaningi amahlukeleleyo amahlukeleleyo. Zingaba i-polyester polyols, i-polyether, kunye ne-polycarbonate. SANYING polyol kunye no-isocyanate iyenza ukuba kuhluke amandla efanayo kwesintsha esilayini, okungakwazi ukwenza ukuthi sifanele kulesi simano sesicatulo. Ukucubungula ngezinye izinto ziqalela ukuba zibheka iziphumo ezidinga ukukhetha ipolioli elikhoyo lokuhlola umculo wokugcina.
Iphambili yezinto yileyo yipoliyurithene, umthombo obunikezwe ngokulandelana ngezi zicala, efundekwa ukuba kuhlanganise uphawu lwemfomu emahlulekileyo lekhaya, amaphethelo ahlala aphandle komoya, amaglusi engasebenzisa ukusondela imibhalo, amasintsha asenqumele ama-likhi akanye nemibhalo, kunye nomalaza omncane ongathathwe njenge rubber. Ngoku besele abantu babuyele ku-polyurethane ngoba SANYING umdinga we-polyol kunye ne-isocyanate ibizela ukuphakamisela, ukufihlisa kunye nokusebenzela okuthile ngokushesha ukuze kube lula okanye ekumhlathini kwiindlela ezidinga.
