1. Menene babban amfani da hydroxypropyl methyl cellulose?
HPMCana amfani da shi sosai a cikin kayan gini, sutura, resins na roba, yumbu, magunguna, abinci, yadi, noma, kayan kwalliya, taba da sauran masana'antu. HPMC za a iya raba zuwa masana'antu sa, abinci sa da likita sa bisa ga amfani.
2. Hydroxypropyl methyl cellulose ya kasu kashi iri-iri, menene bambanci tsakanin su?
Ana iya raba HPMC zuwa nan take (tambarin suffix “S”) da zafi mai narkewa, samfuran nan take, a cikin ruwan sanyi da sauri suka tarwatse, sun bace a cikin ruwa, a wannan lokacin ruwan ba shi da danko, saboda HPMC kawai ya tarwatse a cikin ruwa, ba wani rushewa na gaske. Kimanin mintuna 2, dankon ruwa a hankali yana ƙaruwa, yana samar da gel mai tsabta kuma mai ɗaci. Zafi mai soluble kayayyakin, clumped a cikin ruwan sanyi, da sauri tarwatsa a cikin ruwan zafi, bace a cikin ruwan zafi, kamar zazzabi saukad zuwa wani zazzabi (bisa ga gel zazzabi na samfurin), danko sannu a hankali bayyana, har sai da samuwar m viscous colloid.
3. Yadda za a ƙayyade ingancin hydroxypropyl methyl cellulose a sauƙaƙe da fahimta?
1) Fari, duk da cewa fari ba zai iya tantance ko HPMC yana da kyau ba, kuma idan an ƙara shi a cikin tsarin samar da fata, zai shafi ingancinsa, amma, kyawawan samfuran galibi fari suna da kyau.
2) fineness: HPMC fineness ne gaba ɗaya 80 raga da 100 raga, 120 manufa kasa, mafi kyau mafi kyau.
3) haske watsa: HPMC a cikin ruwa, forming wani m colloid, ga ta haske watsa, da ya fi girma da penetrability na mai kyau, bayyana insoluble kasa da ciki, a tsaye dauki kwalban da digiri gabaɗaya mai kyau, zai aika wasu daga kwance dauki tukwane, amma ba zai iya bayyana a tsaye kettle samar ingancin ne mafi alhẽri daga karya tukwane samar, akwai da yawa dalilai da kayyade samfurin ingancin.
4) rabo: mafi girma da girman, mafi nauyi mafi kyau, fiye da manyan, gabaɗaya saboda babban abun ciki na hydroxypropyl a ciki, abun ciki na hydroxypropyl yana da girma, riƙewar ruwa ya fi kyau.
4. Menene hanyoyin rushewar hydroxypropyl methyl cellulose?
1) Duk samfuran za a iya ƙara su cikin kayan ta hanyar busassun hadawa;
2) Bukatar da za a kai tsaye ƙara zuwa ga al'ada zafin jiki ruwa bayani, shi ne mafi alhẽri a yi amfani da ruwan sanyi watsawa, bayan ƙara kullum a cikin 10-90 minutes to thicken (harra motsa motsa).
3) Za a iya narkar da samfurori na yau da kullum bayan haɗuwa da watsawa da ruwan zafi da kuma ƙara ruwan sanyi bayan motsawa da sanyaya;
4) Lokacin narkar da, idan abin mamaki na agglomerating ya faru, saboda motsawar bai isa ba ko kuma an ƙara samfurin yau da kullum a cikin ruwan sanyi. A wannan lokacin, ya kamata a motsa shi da sauri.
5) Idan kumfa ya faru a lokacin rushewa, ana iya cire su ta hanyar tsayawa na tsawon sa'o'i 2-12 (ƙayyadaddun lokaci ya dogara da daidaito na maganin) ko ta hanyar vacuumizing da matsi, ko ta hanyar ƙara adadin da ya dace na defoaming.
5 hydroxypropyl methyl cellulose a cikin girma na putty foda?
HPMC a cikin ainihin aikace-aikacen adadin, ta yanayin yanayi, zafin jiki, ingancin calcium mai launin toka, ƙirar foda da buƙatun abokin ciniki na nau'ikan inganci, kuma akwai bambance-bambance a kusa, gabaɗaya tsakanin kilogiram 4-5.
6. Menene madaidaicin danko na hydroxypropyl methyl cellulose?
Putty foda shine gabaɗaya 100000 na iya, buƙatun turmi sun fi girma, zuwa 150000 kawai mai kyau, kuma HPMC shine mafi mahimmancin rawar shine riƙewar ruwa, biye da thickening. A cikin foda mai sanyaya, idan dai ruwa yana da kyau, danko yana da ƙananan (7-8), kuma yana yiwuwa, ba shakka, danko ya fi girma, haɗin ruwan dangi ya fi kyau, lokacin da danko ya fi 100,000, danko na riƙewar ruwa ba shi da yawa.
7. Menene babban kayan albarkatun hydroxypropyl methyl cellulose?
HPMCmanyan albarkatun kasa: auduga mai ladabi, chloromethane, propylene oxide, sauran kayan albarkatun kasa, alkali kwamfutar hannu, acid toluene.
8. Hydroxypropyl methyl cellulose a cikin aikace-aikace na putty foda, babban rawa, ko sinadaran?
A cikin putty foda, thickening, ruwa riƙewa da gina uku ayyuka. Yin kauri, cellulose na iya yin kauri zuwa dakatarwa, ta yadda maganin ya kasance iri ɗaya sama da ƙasa rawar da ke ratayewa. Riƙewar ruwa: sanya foda ta bushe a hankali, ƙarar alli mai launin toka a cikin aikin amsawar ruwa. Gina: lubrication cellulose, na iya yin putty foda yana da kyakkyawan gini. HPMC baya shiga cikin kowane halayen sinadarai, amma yana taka rawa ne kawai.
9 .hydroxypropyl methyl cellulose shi ne wadanda ba ionic cellulose ether, don haka abin da ba-ionic?
A cikin sharuddan layman, abubuwan da ba su da ƙarfi ba sa shiga cikin halayen sinadarai.
CMC (carboxymethyl cellulose) shine cellulose cationic, don haka haɗuwa da calcium mai launin toka zai zama ragowar wake.
10. Menene manyan alamun fasaha na hydroxypropyl methyl cellulose?
Hydroxypropyl abun ciki
Methyl abun ciki
danko
toka
Bushewar nauyi
11. Menene alaka da gel zafin jiki na hydroxypropyl methyl cellulose?
Yanayin gel na HPMC yana da alaƙa da abun ciki na methoxyl, ƙananan abun ciki na methoxyl, mafi girman yawan zafin jiki na gel.
12 putty foda drop foda da hydroxypropyl methyl cellulose dangantaka?
Idan HPMC ba ta da kyau ruwa, zai haifar da foda.
13 hydroxypropyl methyl cellulose a aikace-aikace na putty foda, putty foda kumfa menene dalili?
HPMC a cikin foda, da kauri, riƙe ruwa da gina ayyuka uku, dalilin kumfa:
1. ) Ana kara ruwa da yawa.
2.)Lashin kasa baya bushewa, sannan a goge wani Layer akansa, wanda shima yana da saukin kumburi.
14. Menene bambanci tsakanin ruwan sanyi mai sauri-mai narkewa da zafi mai narkewa hydroxypropyl methyl cellulose a cikin tsarin samarwa?
HPMC ruwan sanyi nan take bayani nau'in ne bayan glioxal surface jiyya, sa a cikin ruwan sanyi da sauri tarwatsa, amma ba da gaske narkar da, danko sama, an narkar da. Ba a yi amfani da nau'in thermosoluble saman da glioxal ba. Adadin glioxal yana da girma, tarwatsawa yana da sauri, amma danko yana jinkirin, adadin yana da ƙananan, akasin haka.
15. Menene game da warin hydroxypropyl methyl cellulose?
HPMC da aka samar ta hanyar ƙarfi an yi shi da toluene da barasa isopropyl. Idan wankewar ba ta da kyau sosai, za a sami ɗanɗano kaɗan. (Murmurewa Neutralization shine mabuɗin tsari don wari)
16. Yadda za a zabi hydroxypropyl methyl cellulose mai dacewa don amfani daban-daban?
Putty foda: babban buƙatun riƙe ruwa, ingantaccen ƙarfin gini (jin da aka ba da shawarar: 75AX100000)
Tumi na tushen siminti na yau da kullun: riƙewar ruwa mai tsayi, juriya mai zafi, dankowar sauri (jin da aka ba da shawarar: 75AX150000)
Aikace-aikacen manne gini: samfuran nan take, babban danko. (Lambar alama da aka Shawarta: 75AX200000S)
Turmi Gypsum: babban riƙon ruwa, matsakaici da ƙananan danko, danko nan take (jin da aka ba da shawarar: 75AX75000)
17. Menene sunan barkwanci na hydroxypropyl methyl cellulose?
HPMC ko MHPC wanda aka fi sani da hydroxypropyl methyl cellulose, cellulose hydroxypropyl methyl ether.
18. Menene bambanci tsakanin hydroxypropyl methyl cellulose daMC?
MC ne methyl cellulose, ne mai ladabi auduga bayan Alkali magani, methane chloride matsayin etherifying wakili, ta hanyar jerin halayen da Ya sanya daga cellulose ether, general digiri na maye ne 1.6-2.0, daban-daban mataki na maye solubility ne kuma daban-daban, nasa ne wadanda ba ionic cellulose ether.
(1) Riƙewar ruwa na methyl cellulose ya dogara da adadin adadinsa, danko, fineness barbashi da rushewar kudi. Gabaɗaya, adadin ƙari yana da girma, ƙarancin ƙarancin ƙarami ne, danko yana da girma, ƙimar riƙewar ruwa yana da girma, adadin ƙari yana da babban tasiri akan ƙimar riƙe ruwa, danko da riƙewar ruwa ba ƙasa da alaƙar ba, ƙimar rushewa galibi ya dogara ne akan matakin gyare-gyaren farfajiya da ƙarancin barbashi na ƙwayoyin cellulose. Methyl cellulose da hydroxypropyl methyl cellulose a sama da dama cellulose ethers suna da mafi girma yawan riƙe ruwa.
(2) Methyl cellulose za a iya narkar da a cikin ruwan sanyi, ruwan zafi zai zama da wuya a narke, da ruwa bayani a cikin pH = 3-12 kewayon sosai barga, da sitaci, da dai sauransu, kuma da yawa surfactants da kyau karfinsu, lokacin da zafin jiki ya kai gelation zazzabi, za a sami gelation sabon abu.
(3) Canje-canjen yanayin zafi zai yi tasiri sosai akan ƙimar riƙe ruwa na methyl cellulose, gabaɗaya, mafi girman zafin jiki, mafi munin riƙewar ruwa. Idan yawan zafin jiki na turmi ya wuce digiri 40, riƙewar ruwa na methyl cellulose zai zama mafi muni, wanda ke da matukar tasiri ga constructability na turmi.
(4)Methyl celluloseyana da tasirin gaske akan constructability da adhesion na turmi. Mannewa a nan yana nufin ƙarfin mannewa da ake ji tsakanin kayan aiki da bangon bango ta ma'aikaci, wato, juriya mai ƙarfi na turmi. Adhesion yana da girma, juriyar juriya na turmi yana da girma, ƙarfin da ma'aikata ke bukata wajen amfani da shi kuma yana da girma, kuma ginin turmi ba shi da kyau.
Lokacin aikawa: Afrilu-25-2024