Haɓakawa na Rheological Thickener

Haɓakawa na rheological thickeners ya kasance muhimmin ci gaba a cikin tarihin kimiyyar kayan aiki da injiniyanci. Rheological thickeners ne kayan da za su iya ƙara danko da/ko sarrafa kwarara kaddarorin na taya, suspensions, da emulsions.

An gano kauri na farko na rheological a cikin bazata a cikin karni na 19, lokacin da aka bar cakuda ruwa da gari ya tsaya na wani lokaci, wanda ya haifar da wani abu mai kauri, mai kama da gel. Daga baya an gano wannan cakuda a matsayin dakatarwa mai sauƙi na barbashi na fulawa a cikin ruwa, wanda za'a iya amfani dashi azaman mai kauri a aikace-aikace daban-daban.

A farkon karni na 20, an gano wasu kayan da suke da kauri, kamar sitaci, gumi, da yumbu. An yi amfani da waɗannan kayan azaman masu kauri a cikin kewayon aikace-aikace, daga abinci da kayan kwalliya zuwa fenti da ruwan hakowa.

Koyaya, waɗannan masu kauri na halitta suna da iyakoki, kamar aiki mai canzawa, azanci ga yanayin sarrafawa, da yuwuwar gurɓatar ƙwayoyin cuta. Wannan ya haifar da haɓakar rheological thickeners, irin su cellulose ethers, acrylic polymers, da polyurethane.

Cellulose ethers, irin su sodium carboxymethyl cellulose (CMC), methyl cellulose (MC), da kuma hydroxypropyl cellulose (HPC), sun zama daya daga cikin mafi yadu amfani rheological thickeners a daban-daban aikace-aikace, saboda su musamman Properties, kamar ruwa solubility. kwanciyar hankali pH, ƙarfin ƙarfin ionic, da ikon ƙirƙirar fim.

Haɓakawa na rheological thickeners ya ba da damar samar da samfurori tare da daidaiton aiki, ingantaccen kwanciyar hankali, da ingantaccen aiki. Tare da karuwar buƙatun kayan aiki mai girma, ana sa ran ci gaba da haɓaka sabbin kauri na rheological, wanda ci gaban kimiyyar kayan aiki, sunadarai, da injiniyanci ke haifarwa.