1. Menene babban dalilin hydroxypropyl methyl cellulose (HPMC)?
Ana amfani da HPMC sosai a cikin kayan gini, sutura, resins na roba, yumbu, magunguna, abinci, yadi, noma, kayan kwalliya, taba da sauran masana'antu.
Ana iya raba HPMC zuwa matakin gini, matakin abinci da kuma matakin likitanci bisa ga manufarsa.
A halin yanzu, yawancin samfuran gida suna da darajar gini.A cikin aikin gine-gine, ana amfani da foda mai yawa da yawa, kimanin kashi 90% ana amfani da foda, sauran kuma ana amfani da turmi da manne.
2. Akwai nau'ikan hydroxypropyl methyl cellulose (HPMC) da yawa.Menene bambanci tsakanin amfanin su?
Ana iya raba HPMC zuwa nau'in nan take da nau'in narkewa mai zafi.
Samfurin nan take yana watsewa da sauri cikin ruwan sanyi kuma ya ɓace cikin ruwa.A wannan lokacin, ruwan ba shi da danko, saboda HPMC kawai ana tarwatsewa a cikin ruwa kuma baya narke da gaske.Kusan mintuna 2, dankowar ruwan a hankali ya karu, yana samar da colloid na danko mai haske.
Nau'in nan take, nau'in aikace-aikacen da ya fi fadi, ana iya amfani da shi a cikin foda da turmi, da manne ruwa da fenti.
Samfurin narke mai zafi, lokacin da ya hadu da ruwan sanyi, zai iya watse da sauri cikin ruwan zafi kuma ya ɓace cikin ruwan zafi.Lokacin da zafin jiki ya faɗi zuwa takamaiman zafin jiki, danƙon yana bayyana a hankali har sai an sami colloid mai haske.
Za a iya amfani da nau'in narke mai zafi kawai a cikin foda da turmi.
3. Menene hanyoyin rushewar hydroxypropyl methyl cellulose (HPMC)?
Hanyar narkar da ruwan zafi: Tunda HPMC baya narkewa a cikin ruwan zafi, ana iya tarwatsa HPMC iri ɗaya cikin ruwan zafi a matakin farko, sannan kuma da sauri narkar da lokacin sanyi.Hanyoyi guda biyu na al'ada an bayyana su kamar haka:
(1) Sanya adadin ruwan zafi da ake buƙata a cikin kwandon kuma zafi shi zuwa kusan 70 ° C.A hankali ƙara hydroxypropyl methylcellulose tare da jinkirin motsawa, fara HPMC yana iyo a saman ruwa, sannan a hankali ya samar da slurry, da kwantar da slurry tare da motsawa.
(2).Ƙara 1/3 ko 2/3 na adadin ruwan da ake bukata a cikin akwati kuma zafi shi zuwa 70 ° C.Dangane da hanyar da ke sama, tarwatsa HPMC don shirya slurry ruwan zafi;sannan a saka sauran adadin ruwan sanyi a cikin slurry na ruwan zafi.A cikin slurry, kwantar da cakuda bayan motsawa.
Yadda ake hada foda: Ana hada garin HPMC da sauran kayan da ake hadawa da shi da wani mahalli mai yawa, sannan a zuba ruwa ya narke, sai a samu HPMC a wannan lokaci ba tare da dunkulewa ba, domin kowane dan kankanin lungu, sai a samu kadan na HPMC. Foda zai narke nan da nan idan ya hadu da ruwa.
4. Yadda za a yi hukunci da ingancin hydroxypropyl methylcellulose (HPMC) a sauƙaƙe da fahimta?
(1) Fari: Ko da yake fari ba zai iya tantance ko HPMC yana da sauƙin amfani ba, kuma idan an ƙara mai haske a cikin tsarin samarwa, zai shafi ingancinsa.Duk da haka, yawancin samfurori masu kyau suna da fari mai kyau.
(2) Kyakkyawa: Mafi kyawun HPMC gabaɗaya raga 80 ne da raga 100, raga 120 ya ragu, mafi kyawun inganci, gabaɗaya mafi kyau.
(3) Transmittance: Bayan sanya HPMC a cikin ruwa don samar da colloid mai haske, duba yadda yake watsawa.Mafi girman watsawa, mafi kyau, yana nuna cewa akwai ƙarancin insoluble a ciki.
(4) Matsakaicin: mafi girman rabo, mafi nauyi mafi kyau.Babban ƙayyadaddun ƙayyadaddun ƙayyadaddun abu gabaɗaya shine saboda babban abun ciki na hydroxypropyl a cikinsa, kuma mafi girman abun ciki na hydroxypropyl, mafi kyawun riƙewar ruwa.
5. Menene manyan alamun fasaha na hydroxypropyl methyl cellulose (HPMC)?
Abun ciki na Hydroxypropyl da danko, yawancin su sun damu da waɗannan alamomi guda biyu.Riƙewar ruwa gabaɗaya ya fi kyau ga waɗanda ke da babban abun ciki na hydroxypropyl.Babban danko, riƙewar ruwa, dangi (maimakon cikakkar) shine mafi kyau, kuma babban danko, mafi kyawun amfani da turmi siminti.
6. Menene manyan albarkatun kasa na hydroxypropyl methyl cellulose (HPMC)?
Babban albarkatun kasa na HPMC: auduga mai ladabi, methyl chloride, propylene oxide, da dai sauransu.
7. Mene ne babban aikin aikace-aikacen hydroxypropyl methyl cellulose (HPMC) a cikin foda na putty?Shin akwai maganin sinadari?
A cikin putty foda, HPMC tana taka rawar uku na kauri, riƙe ruwa da gini.
Kauri: Za a iya kauri cellulose don dakatarwa da kiyaye daidaiton bayani da sama da ƙasa, da hana sagging.
Riƙewar ruwa: sanya foda ta bushe a hankali, kuma ta taimaka wa calcium mai launin toka don amsawa ƙarƙashin aikin ruwa.
Gina: Cellulose yana da tasirin lubricating, wanda zai iya sa foda na putty yana da kyakkyawan aiki.
HPMC ba ya shiga cikin kowane nau'in sinadarai, kawai yana taka rawar tallafi.
8. Menene warin hydroxypropyl methyl cellulose (HPMC)?
The HPMC samar da sauran ƙarfi hanya yana amfani da toluene da isopropanol a matsayin sauran ƙarfi.Idan ba a wanke shi da kyau ba, zai sami ɗan ƙamshi.
9. Yadda za a zabi daidai hydroxypropyl methylcellulose (HPMC) don dalilai daban-daban?
Aikace-aikace na putty foda: abin da ake bukata shine ƙananan, danko shine 100,000, ya isa, abu mai mahimmanci shine kiyaye ruwa mafi kyau.
Aikace-aikace na turmi: high bukatun, high danko, 150,000 ne mafi alhẽri.
Aikace-aikacen manna: ana buƙatar samfuran nan take, tare da babban danko.
10. Aikace-aikacen hydroxypropyl methyl cellulose (HPMC) a cikin sa foda, abin da ke haifar da foda don samar da kumfa?
A cikin putty foda, HPMC tana taka rawar uku na kauri, riƙe ruwa da gini.Kada ku shiga cikin kowane hali.
Dalilan kumfa:
1).Sanya ruwa da yawa.
2).Idan ƙasan ƙasa bai bushe ba, kawai a goge wani Layer a saman, shima zai kasance da sauƙin kumfa.
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Lokacin aikawa: Oktoba-22-2021