Hydroxypropyl Methylcellulose (HPMC) ne nonionic cellulose ether da aka yi amfani da ko'ina a masana'antu kamar gini, magani, abinci, kayan shafawa da kuma coatings. Ƙaƙƙarfan sa ya fito ne daga kaddarorin physicochemical na musamman kamar su thickening, bonding, film-forming, rikon ruwa da lubrication. Daban-daban maki na HPMC an fi rarraba bisa ga matakin maye gurbinsu (DS) da methoxy da hydroxypropyl abun ciki, ban da danko, girman barbashi da tsarki. Waɗannan maki daban-daban na HPMC suna da halaye da amfani daban-daban.
1. Methoxy abun ciki da kuma hydroxypropyl abun ciki
Methoxy da hydroxypropyl madaidaicin abun ciki na HPMC shine maɓalli mai mahimmanci wanda ke ƙayyade aikinsa. Gabaɗaya magana, abun cikin methoxy na HPMC yana tsakanin 19% zuwa 30%, kuma abun cikin hydroxypropyl yana tsakanin 4% da 12%. HPMC tare da mafi girman abun ciki na methoxy gabaɗaya yana da mafi kyawun solubility da kaddarorin samar da fim, yayin da HPMC tare da babban abun ciki na hydroxypropyl yana da mafi kyawun elasticity da riƙe ruwa. Waɗannan sigogi kai tsaye suna shafar amfani da HPMC. Misali, a cikin masana'antar gini, babban abun ciki na methoxy yana taimakawa inganta riƙewar ruwa da aikin ginin turmi; a cikin kantin magani, babban abun ciki na hydroxypropyl yana taimakawa inganta mannewa da sakin halayen kwayoyi.
2. Matsayin danko
Ana iya raba HPMC zuwa ƙananan danko, matsakaitan danko da babban makin danko bisa ga dankowar maganinsa. Dankowa muhimmin abu ne na zahiri na HPMC, yawanci ana auna ta ta zahirin danko na 2% bayani a cikin milliPascal seconds (mPa.s).
Ƙananan danko HPMC (kamar 5mPa.s zuwa 100mPa.s): Irin wannan nau'in HPMC yawanci ana amfani dashi a aikace-aikacen da ke buƙatar ƙananan sakamako na kauri, kamar zubar da ido, feshi da kayan kwalliya. A cikin waɗannan aikace-aikacen, ƙananan danko HPMC na iya samar da ruwa mai kyau da rarraba iri.
Matsakaici danko HPMC (misali 400mPa.s zuwa 2000mPa.s): Matsakaici danko HPMC ana amfani dashi a cikin kayan gini, emulsions da adhesives don samar da matsakaicin sakamako mai kauri, wanda zai iya daidaita aikin gini da ƙarfin jiki na samfurin ƙarshe.
High danko HPMC (misali 4000 mPa.s zuwa 200,000 mPa.s): High danko HPMC ne yafi amfani a aikace-aikace da bukatar gagarumin thickening, kamar turmi, putty, tayal adhesives da coatings. A cikin waɗannan samfuran, babban danko na HPMC yana taimakawa inganta riƙewar ruwa, ƙarfin sagging da haɗin gwiwa.
3. Girman barbashi
Girman barbashi na HPMC kuma yana shafar tasirin aikace-aikacen sa. Gabaɗaya magana, ana iya raba HPMC zuwa ƙananan barbashi da ɓangarorin lafiya. M barbashi HPMC yawanci amfani da aikace-aikace da bukatar sauri rushe ko watsawa, yayin da lafiya barbashi HPMC dace da kayayyakin da cewa suna da mafi girma bukatun ga bayyanar ko bukatar karin uniform rarraba.
M-grained HPMC: HPMC tare da ya fi girma barbashi yana da sauri narkar da kudi a bushe-mikaded turmi da sauran filayen, kuma zai iya sauri samar da wani uniform bayani, game da shi inganta samar da yadda ya dace.
HPMC mai kyau: Ana amfani da HPMC mai kyau a masana'antu kamar fenti, kayan kwalliya da kayan kwalliya. Zai iya samar da mafi daidaituwa na fim ɗin fim yayin aiwatar da aikace-aikacen, inganta sheki da jin samfurin.
4. Tsarki da maki na musamman
Dangane da buƙatun aikace-aikacen daban-daban, HPMC kuma ana iya ƙara tsarkakewa ko aiki. HPMC tare da tsafta mafi girma yawanci ana amfani dashi a cikin masana'antar harhada magunguna da abinci don tabbatar da aminci da daidaituwar samfurin. Bugu da kari, akwai wasu HPMCs da ayyuka na musamman, kamar giciye-linked HPMC, surface-bi HPMC, da dai sauransu Wadannan musamman maki na HPMC iya samar da mafi girma kumburi juriya, karfi film-forming Properties ko mafi acid da alkaline juriya.
Pharmaceutical sa HPMC: Pharmaceutical sa HPMC yana da mafi girma tsarki da kuma dace da Allunan, capsules da kuma ci-release shirye-shirye, wanda zai iya muhimmanci inganta saki kudi da kwanciyar hankali na kwayoyi.
Matsayin Abinci HPMC: Ana amfani da matakin abinci HPMC azaman mai kauri, mai daidaitawa da emulsifier don tabbatar da aminci da ɗanɗanon abinci.
Matsayin masana'antu HPMC: HPMC da ake amfani da shi wajen gini, sutura da sauran fagage na iya ƙunsar ƙanƙara na ƙazanta, amma na iya samar da tattalin arziƙi mafi girma da kyakkyawan aikin sarrafawa.
5. Filayen aikace-aikacen da zaɓi
Ana amfani da maki daban-daban na HPMC a cikin gine-gine, magunguna, abinci, kayan shafawa da sauran fannoni. Lokacin zabar darajar HPMC da ta dace, abubuwa kamar danko, abun ciki mai maye, girman barbashi da tsabta suna buƙatar la'akari bisa ga buƙatun takamaiman aikace-aikace.
Filin gini: A cikin kayan gini, ana amfani da HPMC galibi azaman mai kauri, mai riƙe ruwa da ɗaure. Don aikace-aikace kamar busassun turmi da tile adhesives, yana da maɓalli don zaɓar HPMC tare da ɗanko mai dacewa da riƙe ruwa.
Pharmaceutical filin: A Pharmaceutical shirye-shirye, HPMC da ake amfani da capsule harsashi abu, kwamfutar hannu shafi da m. Wajibi ne a zaɓi makin HPMC tare da aikin sakin miyagun ƙwayoyi da ya dace da haɓakar halitta.
Abinci da kayan shafawa: A cikin masana'antar abinci da kayan kwalliya, ana amfani da HPMC azaman mai kauri da daidaitawa, kuma tsarkinta da amincin sa sune abubuwan farko.
Maki daban-daban na Hydroxypropyl Methylcellulose (HPMC) suna da nasu fa'idodin da kuma iyakoki a aikace-aikace. Fahimtar da zabar makin HPMC da ya dace na iya inganta aiki da ingancin samfur yadda ya kamata da saduwa da buƙatun masana'antu da samfuran mabukaci daban-daban.
Lokacin aikawa: Agusta-21-2024