Upende we-Polyurethane oqhutshwa ngamanzi
I-trapezium ekhethekile etholakala emanzini, isayensi yamakhemikhali kazwelonke, amanzi angenawo i-ion, izithasiselo ezisekelwe emanzini kanye nesithasiselo sokuvikela imvelo nezinye izingxenye, ayinayo i-benzene, umndeni, i-benzene yebanga lesibili kanye nezinye izinyibilikisi eziphilayo. Umkhiqizo ulungiswa ngokusebenzisa i-resin ye-polyurethane esekwe emanzini njengezinto zokwakha ifilimu, i-HDI njenge-ejenti yokwelapha, enezela izithasiselo ezinobungani nemvelo kanye nezinsiza ezisebenzayo. Ifilimu ephelele, icwebezela kakhulu, umbala okhanyayo. Ukunamathela okuhle, ubulukhuni obuphezulu, ukumelana nesimo sezulu okuhle kakhulu.
Inkambu yohlelo lokusebenza
Ifanele izidingo eziphezulu zobuso, izidingo eziphakeme zokumelana nesimo sezulu sopende ophezulu. Isetshenziswa kakhulu ekuhlobiseni ubuso bezingxenye zensimbi ezifana nomgqomo womoya, imishini yemishini, imishini yokwakha, ipayipi likawoyela le-petrochemical, njll. Inokumelana nesimo sezulu sangaphandle okuhle kakhulu kanye nokumelana nokugqwala.
Ukwelashwa kwendawo
1. Ubuso kumele buhlanzeke futhi bome, futhi ukwelashwa kobuso be-substrate kumele kuhlangabezane nezidingo.
2. Amathuluzi asetshenziswa ekwakheni kumele abe omile futhi ahlanzekile. 3.
3. akuvunyelwe ukuthintana ne-asidi kanye ne-alkali ngesikhathi senqubo yokulungiselela nokufaka upende.
4. isikhathi sokupenda kumele silawulwe ngokuqinile, uma izinga lokushisa lingu-25′C, isikhathi sokupenda akufanele sibe ngaphansi kwamahora ayi-12.
5. Ayikwazi ukupenda ubukhulu, ifilimu ayikwazi ukudlula u-40μm noma izoqhuma.
6. Ukwakhiwa nokomisa nokulungisa ngesikhathi somswakama ohlobene akudluli ku-75%, izinga lokushisa alikwazi ukuba ngaphansi kuka-0 ℃ C, ngaphandle kwalokho ifilimu ayikwazi ukuphulukiswa ngokuphelele.
Isikhathi sokuthunyelwe: Ephreli-01-2024