1. Kodi ndi chiyani chofunikira kwambiri cha hydroxypropyl methylcellulose (hpmc)?
HPMC imagwiritsidwa ntchito kwambiri m'magawo omanga, zokongoletsa, matekenti, matenti, mankhwala, zakudya, ulimi, zodzola, fodya komanso mafakitale ena. HPMC imatha kugawidwa mu kalasi yomanga, chakudya kalasi yam'madzi komanso kalasi yofananira malinga ndi cholinga. Pakadali pano, ambiri mwazinthu zapakhomo ndi kalasi yomanga. Mu kalasi yomanga, putty ufa umagwiritsidwa ntchito pamlingo waukulu, pafupifupi 90% amagwiritsidwa ntchito ngati ufa wa putty, ndipo ena onse amagwiritsidwa ntchito matope a simenti.
2. Kodi fungo la hydroxypropyl ndi meth methylcelulose (hpmc) ndi chiyani?
HPMC yopangidwa ndi njira yosungunulira imagwiritsa ntchito toluene ndi isoppanol ngati ma sol sol. Ngati kutsuka sikwabwino kwambiri, padzakhala fungo lina lotsalira.
3. Kodi kusintha kwa ma hydroxypypyll methylcelulose (hpmc)?
Njira Yotentha Yokhumudwitsa: Popeza HPMC siyikusungunuka m'madzi otentha, hpmc imatha kubadwa m'madzi otentha nthawi yoyamba, kenako kusungunuka mwachangu mukakhazikika. Njira ziwiri zomwe zafotokozedwa motere:
1) Ikani madzi okwanira mu chidebecho ndikutenthe mpaka 70 ° C. The hydroxypropyl pang'onopang'ono idawonjezeredwa pang'onopang'ono poyambitsa pang'onopang'ono, poyamba HPMC idayandama m'madzi, kenako pang'onopang'ono adapanga malo ocheperako, omwe adakhazikika pansi pa kusungunuka.
2) Kenako onjezani kuchuluka kwa madzi ozizira mpaka madzi otentha, osakaniza adakhazikika pambuyo poyambitsa.
Njira yosakanikirana: Sakanizani ufa wa hpmc wokhala ndi zinthu zina zambiri za ufa, kusakaniza bwino ndi chosakanizika, kenako ndikungowonjezera ufa uliwonse wamakona, ndikusungunuka nthawi yomweyo mukakumana ndi madzi. Ufa ndi opanga matope akugwiritsa ntchito njirayi. [Hydroxypypyl methylcellulose (hpmc) imagwiritsidwa ntchito ngati thickener ndi osungira madzi mu matope a ufa. ]
4. Momwe mungawonetsere mtundu wa hydroxypropyl methylcellulose (hpmc) mongoyerekeza komanso moyenera.
. Komabe, ambiri mwazinthu zabwino zimakhala ndi kuyera kwabwino.
. Ambiri hpmc opangidwa mu hebei ndi 80 mesh. Omaliza chabwino, nthawi zambiri, zabwinoko.
. Mphatso yayikulu yochokera kudera, yabwinoko, yomwe ikuwonetsa kuti pali zokhutira zochepa mmenemo. . Kufalikira kwa vatirs nthawi zambiri kumakhala kwabwino, ndipo chifukwa cha zopingasa ndizoyipa, koma sizitanthauza kuti mawonekedwe ofukula ofukula ndi abwino kuposa omwe ali ndi zinthu zambiri zimatsimikiziridwa ndi zinthu zambiri.
(4) Mphamvu yokoka: mphamvu yayikulu, yolemera. Kutanthauzira kwake ndi kwakukulu, nthawi zambiri chifukwa cha gulu la hydroxypropyl mkati mwake ndi lalitali, ndipo zomwe zili ndi hydroxypyl gululi ndizokwera, kusungidwa kwamadzi ndikwabwino.
5. Kodi pali kusiyana kotani pakati pa mtundu wa madzi ozizira ndi mtundu wa hydroxypypyl methylcellulose popanga?
Mtundu wobalalika wachangu wa HPMC umathandizidwa ndi glyloxal, ndipo imabalalitsa msanga m'madzi ozizira, koma sichisungunuka. Zimangosungunuka pomwe mafayilo akuwonjezeka. Mtundu wanthawi yomweyo ulibe chithandizo champhamvu ndi glyloxal. Ngati kuchuluka kwa Glyloxal ndi kwakukulu, kubalaku udzathamanga, koma mafanowo adzakulira pang'ono, ndipo ngati ndalamazo ndizochepa, sizowona.
6. Kodi mawu oyenera a hydroxypropyll methylcelulose (hpmc) ndi chiyani?
Mafuta a putty nthawi zambiri amakhala okwanira 100,000, ndipo zofuna za matope ndizokwera, ndipo 150,000 yun ndiyofunikira kuti igwiritse ntchito mosavuta. Kuphatikiza apo, ntchito yofunika kwambiri ya HPMC ndi kusungidwa kwamadzi, kenako ndikukula. Mu ufa wa putty, bola ngati kusungidwa kwamadzi ndikwabwino ndipo mafayilo ali otsika (70,000-80,000), nkothekanso. Inde, mafakiti apamwamba, abwinobwino achibale. Maonekedwe oposa 100,000, chidwi cha ma visc chimakhudza kusungidwa kwamadzi. Osatinso.
7. Kodi ndi zisonyezo zazikulu zaukadaulo za hydroxypypyl methylcelulose (hpmc)?
Hydroxypyl ndi mafakisoni, anthu ambiri amadera nkhawa za zizindikiro ziwiri izi. Omwe ali ndi hydroxypropyl omwe amakhala ndi kusungidwa kwa madzi. Yemwe ali ndi ufa wambiri ali ndi kusungidwa kwabwino kwamadzi, koma (osati mwamtheradi), ndipo amene ali ndi mawonekedwe apamwamba amagwiritsidwa ntchito bwino matope a simenti.
8. Kodi zida zazikulu za hydroxypypyl ndi methylcelulose (hpmc)?
Zopangira zazikuluzikulu za hydroxypylropyl methylcellulose (HPMC): Makina oyenga, andyl chloride, ma propropanol, isoppanol, eyporpanol, eyporpanol, esuppanol, eyponol, esuppanol, eyporopanol, esuppanol, eyOP.
9. Kodi ntchito yayikulu ndi iti yomwe imagwiritsidwa ntchito kwa HPMC mu ufa wa punty, ndipo zimachitika?
Mu ufa wa putty, HPMC imasewera maudindo atatu a kukula, kusungidwa kwamadzi ndikumanga.
Kukula: cellose imatha kukwiya kuyimitsa ndikusunga yunifolomu ndikutsika, ndikupewa kusamba.
Kusungidwa kwamadzi: Pangani utoto wa putty pang'onopang'ono, ndikuthandizira calcium kuti muchitepo kanthu pansi pamadzi.
Ntchito Yomanga: Cellulose ili ndi mafuta owuma, omwe amatha kupangitsa kuti ufa ukhale ndi zomangamanga.
Kuonjezera madzi ku ufa wa putty ndikuyika pakhoma ndikuchitika kwa mankhwala, chifukwa zinthu zatsopano zimapangidwa. Mukachotsa ufa wa pakhoma kuchokera kukhoma, ndikupukuta mu ufa, ndikuigwiritsanso ntchito, sizigwira ntchito chifukwa zinthu zatsopano (calcium carbonate) yopangidwa. Nawonso.
Zigawo zikuluzikulu za Ash calcium ufa ndi: osakaniza a ca (o) 2, caon ash munjira iliyonse.
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M'malingaliro a Sing'anga, osakhala a Ions ndi zinthu zomwe sizimayenda m'madzi. Ma Ionirization amatanthauza njira yomwe electrolyte imasungunuka mu ma masikono omwe amatha kusunthira momasuka mu zosungunulira zina (monga madzi, mowa). Mwachitsanzo, sodium chloride (nacl), mchere womwe timadya tsiku lililonse, umasungunuka m'madzi ndi inozi kuti apange ma ionsuum osinthika komanso oyenda. Ndiye kuti, pamene HPMC imayikidwa m'madzi, sizingasungunuke mu ma ions, koma kukhalapo mawonekedwe a mamolekyulu.
11. Kodi kutentha kwa gel nchinji kwa hydroxypypyl methylcelulose yokhudzana ndi?
Kutentha kwa gel
12. Kodi pali ubale uliwonse pakati pa dontho la putty ufa ndi hpmc?
Kuwonongeka kwa ufa wa putty kumakhudzana makamaka ndi mtundu wa calcium, ndipo sakugwirizana ndi HPMC. Ma calcium otsika a imvi a imvi ndi chingwe chosayenera cha cao ndi ca (o) 2 mu gy calcium idzayambitsa ufa. Ngati ili ndi chochita ndi Hopmc, ndiye kuti HPMC ili ndi chipululu chamadzi osawoneka bwino, lidzayambitsa ufa wa ufa.
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Mtundu wobalalika wachangu wa HPMC umathandizidwa ndi glyloxal, ndipo imabalalitsa msanga m'madzi ozizira, koma sichisungunuka. Zimangosungunuka pomwe mafayilo akuwonjezeka. Mtundu wanthawi yomweyo ulibe chithandizo champhamvu ndi glyloxal. Ngati kuchuluka kwa Glyloxal ndi kwakukulu, kubalaku udzathamanga, koma mafanowo adzakulira pang'ono, ndipo ngati ndalamazo ndizochepa, sizowona.
Post Nthawi: Nov-25-2022