Izembozo zangaphandle zidlala indima ebalulekile ekuvikeleni izakhiwo ezintweni zemvelo, zinikeze ukukhanga kobuhle nokuqinisekisa ukuqina kwesikhathi eside.Sihlolisisa izici zama-cellulose ethers, indima yawo njengezishintshisi ezijiyayo neziguquli ze-rheology, kanye nomthelela wezithasiselo ezimpahleni ezifana nokunamathela, isimo sezulu, kanye nokuqina kokunamathela kukonke.Kubenzi befomula nabakhiqizi abahlose ukuthuthukisa amakhompiyutha angaphandle wekhwalithi ephezulu, ukuqonda okuphelele kwalezi zithako kubalulekile.
ethula:
Izembatho zangaphandle zibalulekile ekuvikeleni izakhiwo ezimeni zesimo sezulu esibi, emisebeni ye-UV, izinto ezingcolisayo nezinye izici zemvelo.Ama-cellulose ethers atholakala emithonjeni ye-cellulose yemvelo kanye nohlu lwezithako ezifaka isandla kakhulu ekuthuthukisweni kwalezi zingubo.
Ama-cellulose ethers embotsheni yangaphandle yodonga:
2.1.Ukubuka konke kwe-cellulose ethers:
Ama-cellulose ethers ahlanganisa i-methylcellulose (MC), i-hydroxyethylcellulose (HEC), i-hydroxypropylcellulose (HPC), i-carboxymethylcellulose (CMC), njll., asetshenziswa kakhulu ekusetshenzisweni kwangaphandle ngenxa yezakhiwo zawo ezihlukile.Ngopende odongeni.Lawa ma-polymers asebenza njengama-thickeners, ama-binders, nama-rheology modifiers, anikeze ama-coatings izakhiwo zawo ezibalulekile.
2.2.Izici zokujiya:
Ama-cellulose ethers angama-thickeners asebenzayo akhulisa i-viscosity ye-coatings, akhuthaze ukusetshenziswa okungcono futhi anciphise ukuwohloka.Isakhiwo samangqamuzana e-cellulose ethers sigcina amanzi, siqinisekisa i-viscosity ephelele kanye nokuvumelana kwesicelo.
2.3.Ukuguqulwa kwe-Rheological:
Ukulawula ukuziphatha kwe-rheological kwezingubo zangaphandle kubalulekile ukuze kuzuzwe izakhiwo ezifunwayo zesicelo.Ama-cellulose ethers adlala indima ebalulekile ekuguquleni i-rheology ye-coatings, ukuthuthukisa ukugeleza kwawo nokulinganisa izakhiwo.Lokhu kuthuthukisa ukusebenziseka kalula futhi kubangele ukujiya kokunamathela okufanayo.
Izithasiselo zokuthuthukisa upende wangaphandle:
3.1.Umgqugquzeli wokunamathela:
Ukunamathela kuyisici esibalulekile esithinta ukusebenza kwezingubo zodonga zangaphandle.Izithasiselo ezihlukahlukene, njengama-silanes nama-polymers e-acrylic, zithuthukisa ukunamathela ngokukhuthaza isibopho esiqinile phakathi kwe-coating ne-substrate.Lokhu kuqinisekisa ukuqina kwesikhathi eside kanye nokumelana nokuxebuka noma amabhamuza.
3.2.Izithasiselo zesimo sezulu:
Upende wangaphandle ubhekene nezimo zezulu ezihlukahlukene, okuhlanganisa ukukhanya kwelanga, imvula, nokushintshashintsha kwezinga lokushisa.Iziqinisi ze-UV, iziqinisi zokukhanya kwe-amine ezivimbile (i-HALS), nezinye izithasiselo zesimo sezulu zivikela ukunamathela ekonakalisweni okubangelwa imisebe ye-UV kanye nezinqubo ze-oxidation, ngaleyo ndlela andise impilo yazo yesevisi.
3.3.Ama-antifungal kanye nama-antimicrobial agents:
Ingaphandle lingenwa kalula ukukhula kwebhayoloji, okuhlanganisa isikhunta nolwelwe.Ukwengezwa kwama-antifungal kanye nama-antibacterial agents (njengama-biocides) kuvimbela ukukhula kwama-microorganisms futhi kugcina ukubukeka nokuqina kwe-coating.
3.4.I-ejenti yokuvimbela amanzi:
Ama-agent okuvimbela amanzi abalulekile kumapende angaphandle ukuze avimbele ukungena kwamanzi, okungaholela ekulimazeni nasekulahlekelweni kokusebenza.Ama-silicones, ama-silane kanye nama-fluorinated compounds avame ukusetshenziswa ngokuxosha amanzi okwenza umgoqo we-hydrophobic futhi akhulise ukumelana kwe-coating emonakalweni wamanzi.
3.5.Isithuthukisi sokumelana nomthelela:
Ingaphandle lingase libe sengozini yokulimala okuvela emithonjeni ehlukahlukene, okuhlanganisa isichotho noma ukuthintana ngokomzimba.Ukwengezwa kwezithuthukisi ezimelana nomthelela, njengamapholima e-elastomeric noma ama-microspheres, kungathuthukisa ikhono lokumboza ukuze limelane nokucindezelwa komshini nokugcina izakhiwo zayo zokuzivikela.
Ukubambisana phakathi kwe-cellulose ethers nezithasiselo:
Inhlanganisela yama-cellulose ethers nezithasiselo kumapende angaphandle ngokuvamile kudala umphumela we-synergistic othuthukisa ukusebenza kukonke.Imvelo ye-thixotropic ye-cellulose ethers ihambisana nezakhiwo ezihlakazayo nezizinzile zezithasiselo ezithile, ukuthuthukisa ukusetshenziswa kanye nokwakheka kwefilimu.
Izibonelo nezibonelo:
Lesi sigaba sinikeza izibonelo zomhlaba wangempela zokwenziwa ngempumelelo kopende wangaphandle okuhlanganisa ama-cellulose ether nezithasiselo ezihlukahlukene.Ucwaningo lwezehlakalo lugqamisa izinselele ezithile okuxoxwe ngazo, ukuthuthukiswa okuzuziwe, kanye nempumelelo iyonke yokwakhiwa ngaphansi kwezimo zemvelo ezihlukahlukene.
Okuthrendayo kanye nokuqanjwa kwekusasa:
Njengoba isidingo sezingubo zangaphandle ezisebenza kahle kakhulu siqhubeka sikhula, imboni ibona ucwaningo oluqhubekayo nentuthuko.Amathrendi wesikhathi esizayo angase ahlanganise ukuhlanganiswa kwama-smart coatings, ama-nanomaterials athuthukisiwe nezithasiselo ezisimeme ukuze kuthuthukiswe ukuqina, ubungane bemvelo nokusebenza kahle kwamandla.
Ekuphetheni:
Ama-cellulose ethers nezithasiselo zidlala indima ebalulekile ekuthuthukiseni ukusebenza kwezingubo zangaphandle.Ukuqonda okuphelele kwezakhiwo zabo nokusebenzisana kubalulekile kubakhi bezakhiwo nabakhiqizi abafuna ukuthuthukisa ama-coatings anokuqina okuthuthukisiwe, ukunamathela, isimo sezulu kanye nekhwalithi iyonke.Ukuthuthuka okuqhubekayo kwezinto zokwakha kanye nobuchwepheshe kule ndawo kunikeza ithemba ngentuthuko eqhubekayo embotsheni yangaphandle yemboni yezokwakha.
Isikhathi sokuthumela: Dec-18-2023