Kuwoneka kwa hydroxyethyl cellulose

Hydroxyethyl cellulose (HEC) ndi nonionic, wosungunuka m'madzi polima omwe amagwiritsidwa ntchito kwambiri ngati thickener, stabilizer, ndi binder m'mafakitale osiyanasiyana, kuphatikizapo mankhwala, zodzoladzola, ndi zomangamanga. Kukhuthala kwake kumagwira ntchito yofunika kwambiri pozindikira momwe amagwirira ntchito pamapulogalamuwa.

Kukhuthala kwa HEC kumatsimikiziridwa ndi zinthu zingapo, kuphatikizapo digiri yake ya m'malo (DS), kulemera kwa maselo, kuika maganizo, ndi pH. Mlingo wolowa m'malo umatanthawuza kuchuluka kwa magulu a hydroxyethyl omwe awonjezeredwa ku molekyulu ya cellulose, pomwe kulemera kwa molekyulu kumatanthawuza kukula kwa maunyolo a polima. Kuphatikizika kwa HEC mu yankho kumakhudzanso kukhuthala kwake, ndikuyika kwakukulu komwe kumabweretsa ma viscosity apamwamba. PH ya yankho imathanso kukhudza kukhuthala kwa ma viscosity, pomwe ma pH apamwamba nthawi zambiri amabweretsa ma viscosity otsika.

Kukhuthala kwa HEC kungayesedwe pogwiritsa ntchito viscometer, yomwe imayesa kukana kwamadzimadzi. Mitundu yosiyanasiyana ya ma viscometer angagwiritsidwe ntchito, kuphatikiza ma viscometers ozungulira ndi ma capillary viscometers, kutengera momwe amagwiritsidwira ntchito komanso kukhuthala kwa chidwi.

Kawirikawiri, kukhuthala kwapamwamba kwa HEC kumakondedwa m'mapulogalamu omwe kunenepa ndi kukhazikika ndizofunikira, monga mankhwala opangira mankhwala, zodzoladzola, ndi mankhwala osamalira anthu. Mwachitsanzo, kukhuthala kwakukulu kwa HEC nthawi zambiri kumagwiritsidwa ntchito mu shamposi ndi zoziziritsa kukhosi kuti ziwongolere mawonekedwe awo ndi magwiridwe antchito, komanso muzopaka ndi mafuta odzola kuti azitha kumva bwino komanso apamwamba.

M'makampani omanga, HEC imagwiritsidwa ntchito ngati chowonjezera komanso chosungira madzi muzinthu zopangidwa ndi simenti, monga matope, ma grouts, ndi konkriti. Kukhuthala kwa HEC muzofunsirazi ndikofunikira kuti mukwaniritse zomwe mukufuna, kumamatira, komanso kukhazikika kwa chinthu chomaliza.

Kukhuthala kwa HEC kumatha kusinthidwanso kudzera munjira zosiyanasiyana zama mankhwala ndi zakuthupi, kuphatikiza kuphatikizira, acid hydrolysis, ndikuphatikiza ndi ma polima ena. Zosinthazi zimatha kusintha zinthu za HEC ndikupangitsa kuti magwiridwe antchito aziwoneka bwino.

Mwachidule, ma viscosity a HEC ndizofunikira kwambiri pozindikira momwe amagwirira ntchito zosiyanasiyana. Mlingo wa kulowetsa m'malo, kulemera kwa mamolekyu, kukhazikika, ndi pH zonse zimathandizira kudziwa kukhuthala kwake, komwe kumatha kuyeza pogwiritsa ntchito viscometer. Mafakitale osiyanasiyana ndi ntchito angafunike milingo yosiyanasiyana ya mamasukidwe akayendedwe, ndipo kusinthidwa kwa HEC kungapangidwe kuti ipititse patsogolo magwiridwe antchito ake pazinthu zina.