I-hydroxypropyl methylcellulose ether esheshayo yenzelwe iimveliso ezisekelwe emanzini. Umphezulu we-hydroxypropyl methylcellulose ether uphathwa nge-glyoxal phantsi kobushushu obuthile kunye nexabiso le-pH. I-hydroxypropyl methyl cellulose ether ephathwa ngale ndlela ihlakazwa kuphela kumanzi abandayo angathathi hlangothi ngaphandle kokuvuvukala kunye ne-viscosity, edlala indima ekubambezelekeni kokuvuvukala. Ngeli xesha, isisombululo samanzi sixutywe kwi-5-10 imizuzu okanye Xa indawo yesisombululo (ixabiso le-PH) ihlengahlengiswa ukuba ibe yi-alkaline, i-hydroxypropyl methylcellulose ether iqala ukuvuvukala kwaye ivelise i-viscosity. Olu hlobo lonyango lwangaphezulu ludla ngokubizwa ngokuba luhlobo olukhawulezayo.
Uphawu lwe-instant hydroxypropyl methylcellulose kukuba xa idibana namanzi abandayo, iya kusasazeka ngokukhawuleza emanzini abandayo, kodwa kuthatha ixesha ukuba i-viscosity yayo iphakame, kuba isasazeka emanzini kuphela kwisigaba sokuqala, kwaye ayinyibiliki ingqiqo enkulu. I-viscosity yayo ifikelela kwixabiso eliphezulu malunga nemizuzu engama-20 okanye ngaphezulu. Inzuzo yale nto kukuba isetyenziswe kwishishini elithile ngaphandle kokuxuba umgubo owomileyo, okanye xa kufuneka ichithwe kwaye amanzi ashushu akakwazi ukusetyenziswa ngenxa yeemeko zezixhobo kunye nezinye izizathu. I-hydroxypropyl methylcellulose ekhawulezileyo isombulula ingxaki enjalo.
I-hydroxypropyl methylcellulose ekhawulezileyo isasazeka ngokukhawuleza emanzini (i-dispersion degree yi-100%), ichithwa ngokukhawuleza, ayifuni, ngakumbi kwinqanaba elilandelayo, isisombululo se-colloidal sinokucaca okuphezulu (ukuya kwi-95%) kunye nokuhambelana okukhulu, okusombulula iingxaki. kwizicelo ezibonakalayo. Izithintelo, ukwandisa intsimi yesicelo, njengesicelo kwi-glue yokwakha, isicelo kwi-admixtures yolwelo oludibeneyo, kunye nemimandla ekhethekileyo efana nokuhlamba imichiza yemihla ngemihla.
Siye sazisa izixhobo zokuvelisa eziphambili zehlabathi kunye nobuchwepheshe, sinomgca wemveliso yanamhlanje ye-cellulose ether kunye ne-latex powder edispersible, kwaye siqinisekise ukubonelela abasebenzisi ngeemveliso ezanelisayo kunye nenkqubo engqongqo yokulawula umgangatho, inkqubo yokuvavanya kunye nenkonzo egqibeleleyo kwindawo. Ngoku iimveliso eziphambili ziyi-hydroxypropyl methylcellulose HPMC, i-hydroxyethyl cellulose HEC, i-hydroxypropyl starch ether HPS, i-redispersible latex powder series. Iimveliso zisetyenziswa ngokubanzi kulwakhiwo, kushishino lweekhemikhali, ipeyinti, ishishini lemichiza yemihla ngemihla, ishishini lomkhosi kunye namanye amasimi, kwaye ngokulandelelanayo zenziwa kwii-agent ezenza ifilimu, i-adhesives, dispersants, stabilizers, thickeners, njl.
Ukuthembela kumgangatho wayo wemveliso kunye nobunga bayo kunye nefuthe kwishishini elongezelelweyo lokwakha umgubo, kwaye phantsi kwesiseko sokugcina umsebenzi wequmrhu lomgangatho wokuqala, ngoku usebenzisana nabavelisi bamazwe ngamazwe nabasekhaya abaziwayo kwiimveliso ezihambelanayo. Imisebenzi exhasayo: i-polypropylene fiber, i-Wood fiber, i-ether ye-starch elungisiweyo, i-polyvinyl alcohol powder, i-powder defoamer, isinciphisi samanzi, i-repellent yamanzi, i-calcium fomati kunye nezinye izongezo zomgubo owomileyo.
Ixesha lokuposa: Nov-22-2022