Tiantai Cellulose Co., Ltd ndi Hydroxypropyl methyl cellulose HPMC wopanga opanga fakitale yopanga China, yokhala ndi dzina lapamwamba lamtundu wa QualiCell® Cellulose ethers.
Kuyang'ana mwachangu pa hydroxypropyl methylcellulose HPMC
Choyamba, ntchito yayikulu ya hydroxypropyl methyl cellulose ndi iti?
HPMC AMAGWIRITSA NTCHITO KABWINO PA ZOKUNGA, zokutira, utomoni wopangira, zoumba, mankhwala, chakudya, nsalu, ulimi, zodzoladzola, fodya ndi mafakitale ena. HPMC akhoza kugawidwa mu kalasi mafakitale, chakudya kalasi ndi mankhwala kalasi malinga ndi ntchito yake.
Awiri, hydroxypropyl methyl cellulose amagawidwa m'magulu angapo, pakati pawo pali kusiyana kotani?
HPMC akhoza kugawidwa mu mtundu pompopompo (kalasi suffix "S") ndi otentha sungunuka mtundu, mankhwala pompopompo, m'madzi ozizira msanga omwazika, kutha m'madzi, pa nthawi imeneyi madzi alibe mamasukidwe akayendedwe, chifukwa HPMC basi omwazika m'madzi. , palibe kupasuka kwenikweni. Pafupifupi (kuyambitsa) kwa mphindi 2, kukhuthala kwamadzimadzi kumawonjezeka pang'onopang'ono, kupanga mawonekedwe owoneka bwino a viscous colloid. Zotentha zosungunuka, m'madzi ozizira, zimatha kumwazikana m'madzi otentha, zimatha m'madzi otentha, monga kutentha mpaka kutentha kwina (malinga ndi kutentha kwa gel osakaniza), kukhuthala kumawonekera pang'onopang'ono, mpaka mapangidwe a viscous yowonekera. colloid.
Chachitatu, njira yothetsera hydroxypropyl methyl cellulose ili ndi chiyani?
1. Zitsanzo zonse zikhoza kuwonjezeredwa kuzinthu ndi njira yosakaniza youma;
2, iyenera kuwonjezeredwa mwachindunji pamadzi otentha amadzimadzi, ndi bwino kugwiritsa ntchito madzi ozizira obalaza mtundu, mutatha kuwonjezera kawirikawiri mu mphindi 10-90 kuti mukhuthale (kuyambitsa, kugwedeza, kugwedeza)
3. Chitsanzo chofala choyamba chimabalalitsidwa ndi kusonkhezera ndi madzi otentha, ndiyeno chimasungunuka ndi kuwonjezera madzi ozizira mutatha kusonkhezera ndi kuzizira.
4. Ngati caking ndi kukulunga chodabwitsa kumachitika pamene Kutha, ndi chifukwa kusakaniza sikokwanira kapena chitsanzo wamba mwachindunji anawonjezera madzi ozizira. Panthawi imeneyi, iyenera kugwedezeka mwamsanga.
5. Ngati thovu limapangidwa likasungunuka, likhoza kusiyidwa kwa maola 2-12 (nthawi yeniyeni imatsimikiziridwa ndi kugwirizana kwa yankho) kapena kuchotsedwa ndi vacuum-extraction, pressurization ndi njira zina, ndi kuchuluka koyenera kwa antifoaming wothandizira. akhoza kuwonjezeredwa.
Chachinayi, chosavuta komanso mwachilengedwe kudziwa kuyima kapena kugwa kwa hydroxypropyl methyl cellulose?
1, kuyera, kuyera ngakhale sikungadziwe ngati HPMC ndi yabwino, ndipo ngati iwonjezeredwa pakupanga zoyera, zidzakhudza khalidwe lake, koma, zinthu zabwino zambiri zoyera ndizabwino.
2, fineness: HPMC fineness zambiri 80 mauna ndi 100 mauna, 120 zochepa, ndi bwino kwambiri ndi bwino.
3, transmittance kuwala: HPMC m'madzi, kupanga colloid mandala, kuona transmittance kuwala, zazikulu penetrability wa zabwino, kufotokoza insolubles zochepa mkati, ofukula anachita ketulo ndi madigiri zambiri zabwino, adzatumiza ena yopingasa anachita ketulo, koma sindingathe kufotokozera momwe kupanga ketulo yoyimirira ndikwabwino kuposa kupanga ketulo, pali zinthu zambiri zomwe zimatsimikizira mtundu wazinthu.
4, gawo: gawo lalikulu, lolemera kwambiri, kuposa lalikulu, nthawi zambiri chifukwa zomwe zili mu hydroxypropyl ndizokwera, hydroxypropyl zili zambiri, ndiye kuti madzi amasungidwa bwino.
Zisanu, hydroxypropyl methyl cellulose mu kuchuluka kwa putty powder?
HPMC mu ntchito yeniyeni ya mlingo, ndi chilengedwe nyengo, kutentha, m`deralo kashiamu phulusa khalidwe, putty ufa chilinganizo ndi zofunika kasitomala wa khalidwe la zosiyanasiyana, ndipo pali kusiyana mozungulira, ambiri kulankhula, pakati pa 4-5 makilogalamu.
Six, hydroxypropyl methyl cellulose viscosity ndiyabwinoko?
Khalani otopa ndi UPWELE WA MWANA NDI ZONSE 100 THUSAND OK, CHOFUNIKA KU MORTAR NDIKUTALIRA, KUFUNA 150 THUSAND KUKHALA WABWINO KUTI MUZIGWIRITSA NTCHITO, ndipo, HPMC yofunika kwambiri ndikusunga madzi, kenako ndikukhuthala. Mu putty ufa, bola ngati kusungirako madzi kuli bwino, kukhuthala kumakhala kochepa (7-8), ndizothekanso, ndithudi, kukhuthala ndi kwakukulu, kusungirako madzi kumakhala bwino, pamene mamasukidwe akuthamanga ndi oposa 100,000. , mamasukidwe akayendedwe alibe mphamvu pang'ono pa kusunga madzi.
Zisanu ndi ziwiri, zizindikiro zazikulu zaukadaulo za hydroxypropyl methyl cellulose ndi ziti?
Zomwe zili ndi hydroxypropyl
Zomwe zili mu Methyl
mamasukidwe akayendedwe
phulusa
Kuwuma kuwonda
Eyiti, ndi zida ziti zazikulu za hydroxypropyl methyl cellulose?
Zida zazikulu za HPMC: thonje woyengedwa, chloromethane, propylene oxide, zopangira zina, mapiritsi a alkali, asidi toluene.
Zisanu ndi zinayi, hydroxypropyl methyl cellulose pogwiritsira ntchito putty powder, udindo waukulu, kaya mankhwala?
Mu putty powder, imagwira ntchito zitatu: makulidwe, kusunga madzi ndi kumanga. Thickening, mapadi akhoza unakhuthala kusewera kuyimitsidwa, kuti yankho kukhala yunifolomu mmwamba ndi pansi udindo womwewo, odana otaya atapachikidwa. Kusunga madzi: pangani ufa wa putty kuti uume pang'onopang'ono, phulusa la calcium lothandizira pansi pamadzi. Zomangamanga: Ma cellulose amakhala ndi mafuta, amatha kupanga putty powder kukhala ndi zomangamanga zabwino. HPMC satenga nawo gawo pazosintha zilizonse zamakina, imangogwira ntchito yothandiza.
Hydroxypropyl methyl cellulose ndi non-ionic cellulose ether, ndiye non-ionic ndi chiyani?
Nthawi zambiri, zinthu za inert sizitenga nawo gawo pakusintha kwamankhwala.
CMC (carboxymethyl cellulose) ndi ya cellulose ya cationic, kotero kukumana ndi imvi kashiamu kudzakhala phula la nyemba.
11. Kodi kutentha kwa gelisi ya hydroxypropyl methylcellulose kumagwirizana ndi chiyani?
Kutentha kwa gel osakaniza a HPMC kumagwirizana ndi zomwe zili mu methoxy. Kutsika kwa methoxy, ndipamwamba kutentha kwa gel.
Khumi ndi ziwiri, putty powder powder ndi hydroxypropyl methyl cellulose alibe ubale?
Chofunika!! HPMC ndi osauka madzi posungira, adzachititsa ufa.
13. Kodi pali kusiyana kotani pakati pa madzi ozizira pompopompo yankho ndi hot solution ya hydroxypropyl methyl cellulose popanga?
HPMC ozizira madzi sungunuka mtundu ndi pambuyo glyoxal pamwamba mankhwala, m'madzi ozizira mwamsanga omwazika, koma osati kwenikweni kusungunuka, mamasukidwe akayendedwe mmwamba, ndi kusungunuka. Mtundu wosungunuka ndi kutentha sunapangidwe pamwamba ndi glyoxal. Voliyumu ya glyoxal ndi yayikulu, kubalalitsidwa kumathamanga, koma mamasukidwe ake amachedwa, voliyumu ndi yaying'ono, m'malo mwake.
14, fungo la hydroxypropyl methyl cellulose ndimomwe mungabwezere udindo?
HPMC yopangidwa ndi njira yosungunulira imapangidwa ndi toluene ndi mowa wa isopropyl monga zosungunulira. Ngati kutsuka sikuli bwino, padzakhala kukoma kotsalira. (Neutralization recovery is the key process of fungo)
15, ntchito zosiyanasiyana, momwe mungasankhire hydroxypropyl methyl cellulose yoyenera?
Putty ufa: zofunika kusungirako madzi apamwamba, kumasuka bwino kumanga (kalasi yovomerezeka: 7010N)
Simenti yokhazikika pamatope: kusungirako madzi ambiri, kukana kutentha kwambiri, kukhuthala nthawi yomweyo (kalasi yovomerezeka: HPK100M)
Kugwiritsa ntchito guluu womanga: zinthu pompopompo, kukhuthala kwakukulu. (Chizindikiro chovomerezeka: HPK200MS)
Mtondo wa Gypsum: kusungirako madzi ambiri, kukhuthala kwapakati ndi otsika, kukhuthala kwakanthawi (kalasi yovomerezeka: HPK600M)
16, hydroxypropyl methyl cellulose ndi dzina lotani?
HPMC kapena MHPC alias hydroxypropyl methyl cellulose, cellulose hydroxypropyl methyl ether.
Seventeen, hydroxypropyl methyl cellulose pogwiritsira ntchito putty powder, putty powder bubble chifukwa chiyani?
HPMC mu putty ufa, sewerani magawo atatu a thickening, kusunga madzi ndi kumanga, chifukwa kuwira:
1. Madzi ochuluka amawonjezeredwa.
2. Pansi siwouma, pamwamba pa wina wosanjikiza wa kukanda, komanso kosavuta kuwira.
Khumi ndi zisanu ndi zitatu, hydroxypropyl methyl cellulose ndi MC pali kusiyana kotani:
MC ndi methylcellulose, yomwe imapangidwa ndi thonje woyengedwa pambuyo pa mankhwala a alkali ndi methane chloride monga etherification agent kudzera muzotsatira zingapo kuti apange cellulose ether. Nthawi zambiri, digiri yoloweza m'malo ndi 1.6-2.0, ndipo kusungunuka kwa magawo osiyanasiyana olowa m'malo kumakhala kosiyana, komwe kumakhala kwa ether yopanda ionic cellulose.
(1) Kusungidwa kwa madzi kwa methyl cellulose kumadalira kuchuluka kwake, kukhuthala, kukongola kwa tinthu ndi liwiro la kusungunuka. Kawirikawiri, ngati kuchuluka kwa kuwonjezera ndi kwakukulu, fineness ndi yaying'ono ndipo mamasukidwe akayendedwe ndi aakulu, mlingo wosungira madzi ndi wapamwamba. Kuchuluka kwa kuwonjezera kumakhudza kwambiri kuchuluka kwa madzi osungira madzi, ndipo kukhuthala sikukugwirizana ndi kuchuluka kwa madzi. Kutha kwa liwiro makamaka zimadalira pamwamba kusinthidwa digiri ya mapadi particles ndi tinthu fineness. Pamwambapa pa cellulose ether methyl cellulose ndi hydroxypropyl methyl cellulose kuchuluka kwa kusunga madzi ndikokwera.
(2) Methyl cellulose akhoza kusungunuka m'madzi ozizira, kusungunuka kwa madzi otentha kudzakumana ndi zovuta, njira yake yamadzimadzi mu pH = 3-12 imakhala yokhazikika, ndi wowuma, ndipo kuyanjana kwa surfactant ndikwabwino, pamene kutentha kumafika pamtunda. kutentha kwa gelation, zochitika za gelation zidzachitika.
(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, kukhudza kwambiri kupanga matope.
(4) Methyl cellulose imakhala ndi chikoka pakupanga ndi kumamatira kwamatope. Apa, kumatira kumatanthawuza mphamvu yomatira yomwe imamveka pakati pa chida cha daub cha antchito ndi gawo lapansi la khoma, ndiko kuti, kukana kukameta ubweya wa matope. Katundu womatira ndi wamkulu, kukana kukameta ubweya wa matope ndi kwakukulu, ndipo mphamvu yofunikira ndi ogwira ntchito pakugwiritsa ntchito imakhalanso yayikulu, kotero kuti katundu womanga matope ndi wosauka.
Nthawi yotumiza: Sep-07-2022