HydroxytHyl Cellulose (Hec) is is is is is-ionic, yemvura-yakadzika polymer yakatorwa kubva ku cellulose kuburikidza nemakemikari kugadziridzwa. Inowana shandisa zvakanyanya mumagirendi akasiyana siyana nekuda kwezvivakwa zvayo zvakasarudzika, zvakadai sekuremerwa, kudzikamisa, uye kugona kwemafirimu. Mukushandisa uko ph kusagadzikana kwakakosha, kunzwisisa kuti hec sei maitiro pasi pemamiriro ezvinhu akasiyana PP akakosha.
Iyo pP yakasimba yehec inoreva kugona kwayo kuchengetedza kutendeseka kwayo, zvimiro zvechimiro, uye kuita kune huwandu hwenzvimbo dzenzvimbo. Uku kugadzikana kwakakosha mukushandiswa kwakadai sezvigadzirwa zvega zvega, mishonga yemishonga, majasi, uye zvinhu zvekuvaka, uko iyo ph yenzvimbo yakapoteredza inogona kusiyana zvakanyanya.
Chimiro:
Hec inowanzo kuve yakagadziriswa nekuita cellulose ine ethylyone oxide pasi pealkaline mamiriro. Maitiro aya anoguma nekutsiva kwemapoka ehydroxyl eye cellulose backbone ne hydroxytHyl (-Och2ch2ch2oh) mapoka. Dhigirii rekutsiva
Zvivakwa:
Solubility: Hec inochenesa mumvura uye mafomu akajeka, viscous mhinduro.
Viscosity: Inoratidza pseudoplastic kana yekutsvaira-kuonda maitiro, zvinoreva mavhiza anoderera pasi pekushushikana. Ichi chivakwa chinoita kuti zvive zvinobatsira mukushandisa uko kuyerera kunokosha, sekupenda nekubika.
Kukakavara: Hec inopa visikoka kumhinduro, zvichiita kuti ive yakakosha seyemumiririri wakakura mune dzakasiyana siyana mafambiro.
Firimu-fomu
ph kusagadzikana kwehwanda
Iyo PH yakasanganiswa yeHEC inokurudzirwa nezvikamu zvinoverengeka, kusanganisira chimiro chemakemikari yemapolymer, kubatidzana nenzvimbo yakapoteredzwa, uye chero zvinowedzera zvinowanikwa muchimiro.
ph kusagadzikana kwehwanda mune dzakasiyana Phh ranges:
1. Acadic pH:
At acidic pH, hec kazhinji yakagadzikana asi inogona kufungidzira hydrolysis pamusoro kwenguva yakareba pasi pemamiriro ezvinhu akaomesesa. Nekudaro, mune zvinoshanda zvinoshanda, zvakadai sezvinhu zvekuchengeta pachako uye zviyero zvega, uko Acsic pH inosangana, hec inoramba yakagadzikana mukati meiyo ph range (ph 3 kusvika 6). Kupfuura pH 3, njodzi yehydrolysis inowedzera, inotungamira mukuderera zvishoma nezvishoma muViscosity uye kuita. Izvo zvakakosha kuti utarise iyo pH yekuumbwa ine hec uye gadzirise sezvakakosha kuti urambe wakasimba.
2. Neutral pH:
Hec inoratidza kugadzikana kwakanaka pasi pePH mamiriro (PH 6 kusvika 8). Iyi PH Range inozivikanwa mune akawanda mashandisirwo, kusanganisira cosmetics, mishonga yemishonga, uye zvigadzirwa zvemumba. Hec-ine mafomu anochengetedza visikoka yavo, midziyo yakakora, uye kuita kwese mukati meiyi pH range. Nekudaro, zvinhu zvakadai sekupisa uye ionic simba zvinogona kukanganisa kugadzikana uye kunofanirwa kutariswa mukuvandudzwa kwekugadzira.
3. Alkaline pH:
Hec haina kusimba pasi pemamiriro ezvinhu eAlkaline achienzaniswa neacdic kana isina kwaakarerekera. Pakakwira ph-ph level (pamusoro ph 8), hec inogona kunge iri kusvibiswa, zvichikonzera kuderera mu viscosity uye kurasikirwa kwekuita. Alkaline Hydrolysis yekubatana kweiyo cellucose backbone uye iyo hydroxylsl mapoka anogona kuitika, inotungamira kune keteni uye yakaderedza guremu. Naizvozvo, muAlkaline mafambiro akadai sekudzivirira kana zvekuvaka, dzimwe polysaters kana stabizizer inogona kusarudzwa pamusoro pehec.
Zvinhu zvinokanganisa ph kugadzikana
Zvinhu zvinoverengeka zvinogona kupesvedzera iyo pH kugadzikana kweHEC:
Degree yekutsiva
Kupisa Naizvozvo, kuchengeta yakachengetwa yakakodzera uye yekugadzirisa tembiricha yakakosha kuti ichengetedze iyo pH kugadzikana kwehwanda-ine mafomu.
IONIC Simba: Yakanyanya Kuvatidziro yemazwi kana mamwe eigs mune yekuumbwa inogona kukanganisa kugadzikana kwehyoko nekukanganisa iyo solubility uye yekubatanidzwa nemamolekyudhi emvura. Ionic Simba rinofanira kugadzirwa kuti udzikise zvinoparadza mhedzisiro.
Kuwedzera: Kubatanidzwa kwekuwedzera kwakadai seSurfersants, vanochengetedza, kana vamiririri vanokwanisa kupesvedzera phimasi yekugadzira. Kuedzwa kuenzanisa kunofanirwa kuitwa kuve nechokwadi chekuwedzera kuwirirana uye kugadzikana.
Zvikumbiro uye mafungiro ekugadzira
Kunzwisisa iyo pH kugadzikana kwehisheni yakakosha kune mafambisirwo emasango akasiyana.
Heano mamwe mafungiro ekunyorera-mafungiro:
Zvigadzirwa zvega zvega: Mune shampoos, mainzvimbo, uye marara, achiramba ari pH mukati meiyo yaunoda
Pharmaceuticals: Hec inoshandiswa mune yemuromo kumiswa, mhinduro yeOphthalmic, uye mamiriro epamusoro. Mafomu anofanirwa kuumbwa uye akachengetwa mumamiriro ezvinhu anochengetedza hec kugadzikana kuve nechokwadi chekubudirira kwechigadzirwa uye hupenyu hwesherufu.
Zvikara uye pendi: Hec inoshandirwa seye roMology modifier uye yakanangana mumvura-yakavakirwa mvura pendi uye marara. Vagadziri vanofanira kuyera ph zvinodiwa nemamwe maitiro ekuita senge viscosity, kuyambuka, uye mafirimu ekuumbwa.
Zvivakwa zvekuvaka: Mukugadzira mashandisiro emhando, hec anoita seyekuchengetwa kwemvura uye kunobata basa. Nekudaro, alkaline mamiriro mune simende inogona kupokana kugadzikana kwehec, inokoshesa kusarudzwa nokungwarira uye kugadzirisa magadzirirwo.
HydroxyTHYL Cellulose (HEC) inopa yakakosha yeRheological uye inoshanda zvinhu mune dzakasiyana siyana application. Kunzwisisa kwayo pH kugadzikana kwakakosha kune maguru kukudziridza maitiro akasimba uye anoshanda. Ipo HEC achiratidza kugadzikana kwakanaka pasi peasina kwaPP mamiriro, kufunga kunofanirwa kuitwa kune acidic uye alkaline nharaunda kudzivirira kusvibiswa uye kuve nechokwadi chekuita nekuchiva kwekunyora. Nekusarudza iyo yakakodzera HEC Giredhi, optimizing mafirita, uye kuita kuti mamiriro ezvinhu akakodzera ekuchengetedza, maguru anogona kusunga mabhenefiti eHec kuyambuka huwandu hwenzvimbo dzakasiyana siyana.
Kutumira Nguva: Mar-29-2024