Hydroxypyl methylcellose (hpmc)shine rashin-ionic mara kyau, ruwan zãfi ne mai narkewa. Buhu shine fari ga dan kadan rawaya foda ko kayan kwalliya, kamshi, mara guba, da kuma maganin m da viscous bayani. Ofaya daga cikin mahimman kayan aikin hydroxypropyl methylcellulose a aikace-aikacen shine cewa yana ƙara danko na ruwa. Tasirin thickening ya dogara da matakin polymerizations (DP) na samfurin, maida hankali na sel, etarlulous ether a cikin bayani mai ruwa, yawan karfi, da zazzabi mafita. Da sauran dalilai.
01
Nau'in ruwa na hpmc ruwa mai ruwa
Gabaɗaya, wahalar da ruwa a cikin garkuwar garken za a iya bayyana shi azaman aikin kawai adadin ƙararrawa ne. Ya danganta da nau'ikan ƒ (γ), ana iya rarrabu da ruwa zuwa nau'ikan daban-daban, wato: Ruwan Newtonton, Dilattoplastics, ƙwayar ƙwayar fure, ƙwayar ƙwayar itace, ƙwayar ta Bingham.
Phellingos Ehers sun kasu kashi biyu: daya ba shi da etherululas ether kuma ɗayan shine ion Maganin Phenel Pionic. Don rheology na waɗannan nau'ikan sel biyu na Elhers. Sc Naik et al. Binciken cikakken kuma nazarin tsarin kwalliya a kan sel na hydroxylulose da sodium carboxymeth cellobose. Sakamakon ya nuna cewa duka biyu ba na pellulose sel mara kyau ba da mafita da ionic sel sel ether mafita sun kasance fseaudoplastic. Yana gudana, watau mara gudana gudana, kusanci da taya ta Newtonton kawai kawai a ƙarancin taro. Maganin Hydroxypolyl methylcellulopyl methylcellulo bayani yana wasa muhimmiyar rawa a aikace-aikace. Misali, lokacin da aka yi amfani da shi a cikin halayyar cututtukan karfi, saboda kariyar mafita na mafita, wanda ke da hankali ga uniform na kayan alade, kuma yana ƙara yawan ƙarfin haɗin alade . Tasirin yana da girma sosai; Duk da yake hutawa, dankan da mafita ba shi da yawa babba, wanda yadda ya kamata ya hana ajiya na barbashi a cikin shafi.
02
Hanyar gwajin HPMC
Muhimmin mai nuna alama don auna tasirin hydroxypropyl methylcellulose ne bayyananne danko na mafita. Hanyoyin muni na bayyananniyar danko yana haɗa da hanyar CINCALLALLY, hanyar danko mai jujjuyawa da kuma faɗuwar hanyar ball.
A ina: shine bayyananne danko, MPa S; K shine mai wasan kwaikwayon. d shine yawan samfurin samfurin a 20/20 ° C; T lokaci ne don mafita don wucewa ta ɓangaren da na kwatancen zuwa alamar ƙasa, s; Lokacin da ƙimar mai gudana ta hanyar da aka auna ta.
Koyaya, hanyar auna ta prenchary mai kallo yana da matsala. Da viscounties na da yawaPRELLUOSEsuna da wuyar tantancewa ta amfani da wasan kwaikwayon mai ɗaukar hoto saboda waɗannan hanyoyin sun ƙunshi adadin abubuwan da ba su da matsala lokacin da aka katange ɗan wasan kallo. Saboda haka, yawancin masana'antun suna amfani da masu juyawa ga jujjuyawa don sarrafa ingancin hydroxypropyl methylcellulose. Ana amfani da Brookfielfielfield da ake amfani da su a cikin ƙasashen waje, ana amfani da NDJ masu taken NDG a China.
03
Abubuwa masu tasiri na danko na HPMC
3.1 Dangantaka tare da digiri na hade
Lokacin da sauran sigogi ba su canza ba, danko na hydroxyplipyl methylcellulo bayani shine gwargwado ga matakin polymerization ko tsawan sarkar sarkar, da kuma karuwa da karuwar digiri na polymerization. Wannan tasirin shine mafi shahara a batun low digiri na polymerization fiye da yadda batun babban mataki na polymerization.
3.2 dangantaka tsakanin danko da maida hankali
Dydrochorcici na Hydroxypropyl methylcellulose yana ƙaruwa tare da karuwar taro na samfurin a cikin mafita. Koda karamin canjin canji zai haifar da babban canji a cikin danko. Tare da danko mai tsiro na hydroxypropyl methylcellulopyl methylcellulopyl methylcellulopyl methylcellulopyl methylcellulopyl
3.3 Dangantaka tsakanin danko da karfi
Hydroxypyl methylcellulous bayani yana da mallakar karfi thin thinning. Hydroxypyl methylcelophose na daban-daban na danko ya shirya zuwa ga mafita 2% masu ruwa a cikin kudaden da aka tsara a cikin matakan ƙwararru daban-daban. Sakamakon binciken yana da hakan kamar yadda aka nuna a cikin adadi. A low karfi kudi, danko na hydroxypyl methylcellulhopyl methylcellulo bayani bai canza sosai ba. Tare da karuwar karfi na karfi, danko na hydroxypropyl methylcellulo bayani ya ragu sosai, yayin da mafita tare da karancin danko bai rage shakka ba.
3.4 Dangantaka tsakanin danko da zazzabi
Hydrocricyl Hydroxypyl methylcellulopyl methylcel bayani ya shafi yawan zafin jiki. Kamar yadda zafin jiki ya karu, danko da danko na maganin yana raguwa. Kamar yadda aka nuna a cikin adadi, an shirya shi cikin mafita mai ruwa mai ruwa tare da taro na 2%, da kuma canjin danko tare da karuwar zazzabi an auna.
3.5 Wasu maganganu masu tasiri
Dandalin maganin ruwa na ruwa na ruwa na hydroxypropopyl methylcellulose ne kuma ya shafa ta da ƙari a cikin mafita, ph tamanin lalata. Yawancin lokaci, domin samun mafi kyawun amfani ko kuma rage farashin amfani, ya zama dole don yumɓu, polymer foda, ga m yumbu, aqueous clayer, aqueous bayani na hydroxyprose. , da eleclytes kamar chloride, bromide, phosphate, nitrate, nitrate, da sauransu za'a iya ƙara zuwa mafita mai ruwa. Wadannan ƙari ba kawai zasu iya shafar kayan danko na danko na maganin ruwa mai ruwa ba, har ma yana shafar wasu kaddarorin aikace-aikacen hydroxypripyl methylcellulhopyl methylcellulopyl methylcellulopyl methylcellulopyl methylcellulopyl methylcellulopyl methylcellulopyl methylcellulopyl methylcellulopyl methylcellulopyl , sag jure, da sauransu.
Hydroousen na maganin ruwa na ruwa na hydroxypropyl methylcellulose ne kusan bai shafa da acid da alkali, kuma an barshi wani adadin raunin acid, kamar shi a acid acid, acetic acid, acid acid , Boric acid, citric acid, da sauransu, acid, mai daurin acid zai rage danko. Amma caustic soda, potassium hydroxide, lemun tsami ruwa, da sauransu ba su da kadan a kai. Idan aka kwatanta da sauran selmethypyl methylcelosebayani mai ruwa aqueous yana da kwanciyar hankali na rigakafi, babban dalilin shine mafi yawan zartarwar anhydroguse, sakamakon musayar ƙwayar cuta ta zama mafi sauƙin lalacewa ta hanyar ƙwayoyin cuta, sakamakon shi A cikin lalata na kwayar cutar sel da kuma ikon sarkar sarkar. Wasan kwaikwayon shi ne cewa bayyananniyar danko na ƙwayar mafita ta ragu. Idan ya zama dole a adana maganin ruwa mai ruwa na hydroxypropyl wakili wakili don ƙara adadin adadin Attifungal wakili don ƙara darajar da wakili na antifishan bai canza sosai ba. Lokacin da zabar wakilan anti-fungal, abubuwan hanawa ko fungicides, ya kamata ku kula da aminci, kuma zaɓi samfurori masu guba, kamar yadda aka adana na Kissan wasan kwaikwayo, irin waɗannan abubuwan ƙwayoyin cuta na DOVAL, jami'an ƙwayoyin cuta na DOVAKYE, INGANCIN HUKUNCIN BUKA da sauran samfuran. na iya taka rawa mai dacewa.
Lokaci: Apr-28-2024