1. Kodi hydroxypropyl methyl cellulose amagwiritsidwa ntchito bwanji?
Mtengo wa HPMCchimagwiritsidwa ntchito kwambiri mu zomangira, zokutira, utomoni kupanga, zoumba, mankhwala, chakudya, nsalu, ulimi, zodzoladzola, fodya ndi mafakitale ena. HPMC akhoza kugawidwa mu kalasi mafakitale, kalasi chakudya ndi mankhwala kalasi malinga ndi ntchito.
2. Hydroxypropyl methyl cellulose imagawidwa m'mitundu ingapo, pali kusiyana kotani pakati pawo?
HPMC akhoza kugawidwa nthawi yomweyo (mtundu suffix "S") ndi otentha sungunuka, mankhwala pompopompo, m'madzi ozizira mwamsanga omwazika, mbisoweka m'madzi, pa nthawi imeneyi madzi alibe mamasukidwe akayendedwe, chifukwa HPMC basi omwazika m'madzi, palibe kuvunda kwenikweni. Pafupifupi mphindi 2, kukhuthala kwamadzimadzi kumawonjezeka pang'onopang'ono, ndikupanga gel osakaniza komanso omata. Kutentha sungunuka mankhwala, clumped m'madzi ozizira, akhoza msanga kumwazikana m'madzi otentha, kutha m'madzi otentha, monga kutentha akutsikira kutentha ena (malinga ndi kutentha gel osakaniza mankhwala), mamasukidwe akayendedwe pang'onopang'ono kuonekera, mpaka mapangidwe mandala viscous colloid.
3. Kodi mungadziwe bwanji mtundu wa hydroxypropyl methyl cellulose mophweka komanso mwachidziwitso?
1) kuyera, ngakhale kuyera sikungadziwe ngati HPMC ndi yabwino, ndipo ngati iwonjezeredwa pakupanga zoyera, zidzakhudza khalidwe lake, koma, zinthu zabwino zambiri zoyera zimakhala zabwino.
2) fineness: HPMC fineness zambiri 80 mauna ndi 100 mauna, 120 zolinga zochepa, ndi bwino kwambiri.
3) kuwala transmittance: HPMC m'madzi, kupanga colloid mandala, kuona transmittance kuwala, yaikulu penetrability wa zabwino, kufotokoza insolubles zochepa mkati, ofukula anachita ketulo ndi madigiri zambiri zabwino, adzatumiza ena yopingasa anachita ketulo, koma sangathe kufotokoza ofukula ketulo kupanga khalidwe ndi bwino kuposa kupanga zinthu zambiri ketulo ndi bwino kuposa mankhwala bodza.
4) gawo: gawo lalikulu, lolemera kwambiri, kuposa lalikulu, nthawi zambiri chifukwa cha kuchuluka kwa hydroxypropyl mkati, hydroxypropyl imakhala yochuluka, kusunga madzi kumakhala bwino.
4. Kodi njira zosungunulira za hydroxypropyl methyl cellulose ndi ziti?
1) Zitsanzo zonse zitha kuwonjezeredwa pazinthuzo ndi njira yosakaniza yowuma;
2) Ayenera kuwonjezeredwa mwachindunji pamadzi otentha otentha, ndi bwino kugwiritsa ntchito kubalalitsidwa kwamadzi ozizira, mutatha kuwonjezera nthawi zambiri mu mphindi 10-90 kuti mukhuthale (kuyambitsa chipwirikiti)
3) Zitsanzo wamba zimatha kusungunuka mutatha kusakaniza ndi kumwazikana ndi madzi otentha ndikuwonjezera madzi ozizira mutatha kuyambitsa ndi kuzizira;
4) Pamene kusungunuka, ngati chodabwitsa cha agglomerating chikuchitika, ndi chifukwa choyambitsa sikokwanira kapena chitsanzo wamba mwachindunji anawonjezera m'madzi ozizira. Panthawi imeneyi, iyenera kugwedezeka mwamsanga.
5) Ngati thovu likuchitika panthawi ya kusungunuka, amatha kuchotsedwa poyimirira kwa maola 2-12 (nthawi yeniyeni imadalira kugwirizana kwa yankho) kapena kupukuta ndi kukakamiza, kapena powonjezerapo mlingo woyenera wa defoaming wothandizira.
5 hydroxypropyl methyl cellulose mu voliyumu ya putty powder?
HPMC mu ntchito yeniyeni ya kuchuluka, ndi chilengedwe nyengo, kutentha, m'deralo imvi kashiamu khalidwe, putty ufa chilinganizo ndi zofunika kasitomala wa khalidwe losiyana, ndipo pali kusiyana mozungulira, zambiri pakati 4-5 makilogalamu.
6. Kodi kukhuthala koyenera kwa hydroxypropyl methyl cellulose ndi chiyani?
Putty ufa nthawi zambiri umakhala 100000 ukhoza, zofunikira zamatope ndizokwera, mpaka 150000 zabwino zokha, ndipo HPMC ndiyofunikira kwambiri ndikusunga madzi, ndikutsatiridwa ndi makulidwe. Mu putty ufa, bola ngati kusungirako madzi kuli bwino, kukhuthala kumakhala kochepa (7-8), ndizothekanso, ndithudi, kukhuthala ndi kwakukulu, kusungirako madzi kwachibale kumakhala bwino, pamene mamasukidwe akuthamanga ndi oposa 100,000, kukhuthala kwa kusunga madzi sikokwanira.
7. Kodi zida zazikulu za hydroxypropyl methyl cellulose ndi ziti?
Mtengo wa HPMCzipangizo zazikulu: thonje woyengedwa, chloromethane, propylene okusayidi, zipangizo zina, piritsi alkali, asidi toluene.
8. Hydroxypropyl methyl cellulose pogwiritsira ntchito putty powder, udindo waukulu, kaya ndi mankhwala?
Mu putty ufa, thickening, kusunga madzi ndi kumanga ntchito zitatu. Thickening, mapadi akhoza unakhuthala kuti kuyimitsidwa, kotero kuti yankho kukhala yunifolomu mmwamba ndi pansi udindo odana otaya atapachikidwa. Kusungirako madzi: pangani ufa wa putty kuti uume pang'onopang'ono, kashiamu wothandiza wa imvi pochita madzi. Kumanga: kudzoza kwa cellulose, kumatha kupanga ufa wa putty kukhala ndi zomangamanga zabwino. HPMC sitenga nawo gawo pazosintha zilizonse zamakina, koma imangothandiza.
9 .hydroxypropyl methyl cellulose ndi non-ionic cellulose ether, ndiye non-ionic ndi chiyani?
M'mawu a layman, zinthu za inert sizitenga nawo gawo pamachitidwe amankhwala.
CMC(carboxymethyl cellulose) ndi cellulose ya cationic, kotero kukumana ndi imvi calcium kumakhala zotsalira za nyemba.
10. Kodi zizindikiro zazikulu zaukadaulo za hydroxypropyl methyl cellulose ndi ziti?
Zomwe zili ndi hydroxypropyl
Zinthu za Methyl
mamasukidwe akayendedwe
phulusa
Kuwuma kuwonda
11. Kodi kutentha kwa gel wa hydroxypropyl methyl cellulose kumakhudzana bwanji?
Kutentha kwa gel osakaniza a HPMC kumagwirizana ndi zomwe zili ndi methoxyl, kutsika kwa methoxyl, kumapangitsa kutentha kwa gel.
12 putty powder drop powder ndi ubale wa hydroxypropyl methyl cellulose?
Ngati HPMC ndi osauka madzi posungira, adzachititsa ufa.
13 hydroxypropyl methyl cellulose pogwiritsira ntchito putty powder, putty powder kuwira chifukwa chiyani?
HPMC mu putty ufa, makulidwe, kusunga madzi ndi kumanga maudindo atatu, chifukwa cha kuwira:
1. ) Madzi ochuluka amawonjezeredwa.
2. ) Pansi wosanjikiza siuma, ndiyeno khwaya wosanjikiza pa izo, amenenso mosavuta chithuza.
14. Kodi pali kusiyana kotani pakati pa hydroxypropyl methyl cellulose yomwe imasungunuka m'madzi ozizira komanso otentha popanga?
HPMC madzi ozizira yomweyo yankho mtundu ndi pambuyo glyoxal pamwamba mankhwala, kuika mu madzi ozizira mwamsanga omwazika, koma osati kusungunuka, mamasukidwe akayendedwe mmwamba, ndi kusungunuka. Mtundu wa thermosoluble sunapangidwe pamwamba ndi glyoxal. Kuchuluka kwa glyoxal ndi kwakukulu, kubalalitsidwa kumathamanga, koma mamasukidwe ake amachedwa, kuchuluka kwake ndi kochepa, m'malo mwake.
15. Kodi fungo la hydroxypropyl methyl cellulose ndi chiyani?
HPMC yopangidwa ndi njira yosungunulira imapangidwa ndi toluene ndi mowa wa isopropyl. Ngati kutsuka sikuli bwino, padzakhala kukoma kotsalira. (Kuchira kwa Neutralization ndiye njira yofunika kwambiri ya fungo)
16. Kodi mungasankhire bwanji hydroxypropyl methyl cellulose kuti mugwiritse ntchito mosiyanasiyana?
Putty ufa: zofunika posungira madzi kwambiri, kugwirizanitsa bwino zomangamanga (kalasi yovomerezeka: 75AX100000)
Tondo wamba wopangidwa ndi simenti: kusungirako madzi ambiri, kukana kutentha kwambiri, kukhuthala pompopompo (kalasi yovomerezeka: 75AX150000)
Kugwiritsa ntchito guluu womanga: zinthu pompopompo, kukhuthala kwakukulu. (Nambala yamtunduwu yovomerezeka: 75AX200000S)
Mtondo wa Gypsum: kusungirako madzi ambiri, kukhuthala kwapakati komanso otsika, kukhuthala pompopompo (kalasi yovomerezeka: 75AX75000)
17. Kodi hydroxypropyl methyl cellulose amatchedwa chiyani?
HPMC kapena MHPC alias hydroxypropyl methyl cellulose, cellulose hydroxypropyl methyl ether.
18. Kodi pali kusiyana kotani pakati pa hydroxypropyl methyl cellulose ndiMC?
MC ndi methyl cellulose, woyengedwa thonje pambuyo mankhwala alkali, methane mankhwala enaake monga etherifying wothandizila, kudzera mndandanda wa zochita ndi anapanga mapalo etere, ambiri digiri ya m'malo ndi 1.6-2.0, digiri osiyana m'malo solubility ndi wosiyana, ndi wa sanali ionic mapadi efa.
(1) Kusungidwa kwa madzi kwa methyl cellulose kumadalira kuchuluka kwake, kukhuthala, kukongola kwa tinthu ndi kuchuluka kwa kusungunuka. Nthawi zambiri, kuchuluka kwake ndi kwakukulu, fineness ndi yaying'ono, mamasukidwe akayendedwe ndi akulu, kuchuluka kwa madzi posungirako ndikwambiri, kuchuluka kowonjezerako kumakhudza kwambiri kuchuluka kwa kusungirako madzi, kukhuthala ndi kusungirako madzi sikutsika kuposa ubale, kuchuluka kwa kusungunuka kumadalira makamaka pamlingo wosintha padziko lapansi komanso kuwongolera kwa tinthu ta cellulose. Methyl cellulose ndi hydroxypropyl methyl cellulose m'ma cellulose ether angapo pamwambapa ali ndi kuchuluka kwa kusunga madzi.
(2) Methyl mapadi akhoza kusungunuka m'madzi ozizira, madzi otentha adzakhala ovuta kupasuka, njira yake yamadzimadzi mu pH = 3-12 osiyanasiyana ndi khola kwambiri, ndi wowuma, etc., ndi surfactants ambiri ndi ngakhale wabwino, pamene kutentha kufika kutentha gelation, padzakhala gelation chodabwitsa.
(3) Kusintha kwa kutentha kudzakhudza kwambiri kuchuluka kwa madzi osungiramo madzi a methyl cellulose, nthawi zambiri, kutentha kwapamwamba, kumapangitsa kuti madzi asungidwe kwambiri. Ngati kutentha kwa matope kupitirira madigiri 40, kusungidwa kwa madzi kwa methyl cellulose kudzakhala koipa kwambiri, zomwe zimakhudza kwambiri kumangidwa kwa matope.
(4)Methyl celluloseali ndi chikoka choonekera pa constructability ndi kumatira matope. Kumamatira apa kumatanthauza mphamvu yomatira yomwe imamveka pakati pa chida ndi gawo lapansi la khoma ndi wogwira ntchito, ndiko kuti, kukana kukameta ubweya wa matope. Kumamatira ndi kwakukulu, kukana kukameta ubweya wa matope ndi kwakukulu, mphamvu yofunikira ndi ogwira ntchito pakugwiritsa ntchito imakhalanso yaikulu, ndipo kumanga matope ndi osauka.
Nthawi yotumiza: Apr-25-2024