Mayankho a Mafunso Okhudza Hydroxypropyll Methylcelulose

1. Kodi ndi chiyani chofunikira kwambiri cha hydroxypropyl methylcellulose (hpmc)?

- HPMC imagwiritsidwa ntchito kwambiri m'magawo omanga, zokongoletsa, mafinya, mankhwala, chakudya, maulimi, fodya komanso mafakitale ena. HPMC imatha kugawidwa mu: kalasi yomanga, yopanga chakudya ndi kalasi yogwiritsira ntchito mankhwala malinga ndi kugwiritsa ntchito. 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 ndi guluu.

2. Pali mitundu ingapo ya hydroxypropyl methylcellulose (hpmc), ndipo kusiyana kotani pakugwiritsa ntchito kwawo?

- Inansder: HPMC imatha kugawidwanso mtundu wa anthu wamba komanso otentha. Mtundu wazogulitsa nthawi yomweyo umabalalitsa msanga m'madzi ozizira ndikuzimiririka m'madzi. Pakadali pano, madziwa alibe mamasukidwe, chifukwa HPMC imangomwazika m'madzi popanda kusinthika kwenikweni. Pafupifupi mphindi ziwiri, mafayilo amadzimadzi pang'onopang'ono amawonjezeka, ndikupanga mafilimu owonekera. Zogulitsa zosungunuka, zikakumana ndi madzi ozizira, zimatha kufalitsa msanga m'madzi otentha ndikuzimiririka m'madzi otentha. Kutentha kukagwa mpaka kutentha kwinakwake, mafayilo amawoneka pang'onopang'ono mpaka apangire cololous wowonekera. Mtundu wosungunuka umatha kugwiritsidwa ntchito mu ufa ndi matope. M'dothi wamadzimadzi ndi utoto, padzakhala gulu lazinthu zomwe sizingagwiritsidwe ntchito. Mtundu wa nthawi yomweyo umakhala ndi ntchito zambiri. Itha kugwiritsidwa ntchito mu ufa ndi matope, komanso guluu wamadzimalo ndi utoto, popanda contacation.

3. Kodi kusintha kwa ma hydroxypypyll methylcelulose (hpmc)?

- Njira Yotentha Kwambiri: Popeza HPMC siyikusungunuka m'madzi otentha, pomwepo hpmc imatha kubadwa m'madzi otentha nthawi yoyamba, kenako ndikusungunuka msanga mukamazizira. 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.

- White: (1) Kuyera: Ngakhale kuyera sikungadziwe ngati HPMC ndikosavuta kugwiritsa ntchito, ndipo ngati odekha oyeretsa amawonjezeredwa pakupanga, uzikhudza mtundu wake. Komabe, ambiri mwazinthu zabwino zimakhala ndi kuyera kwabwino. . . Mphatso yayikulu yochokera kudera, yabwinoko, yomwe ikuwonetsa kuti pali zokhutira zochepa mmenemo. . Kuphatikizika kwa riyakitala yokhazikika nthawi zambiri kumakhala bwino, ndipo za riyation yopingasa ndikutanthauza kuti mtundu wa vertication ndiyabwino kuposa momwe ziliri ndi zinthu zambiri zomwe mungazindikire. (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 mawu oyenera a hydroxypypyll methylcelulose (hpmc) ndi chiyani?

- Ananswer: putty ufa nthawi zambiri Yuan, ndipo zofuna za matope ndizokwera, ndipo 150,000 yun ndiyofunikira kuti mugwiritse 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.

6. Kodi ndi zisonyezo zazikulu zaukadaulo za hydroxypypyl methylcelulose (hpmc)?

- Ananswer: hydroxypyl zomwe ndi mafayilo, ogwiritsa ntchito ambiri amakhudzidwa ndi zizindikiro ziwirizi. 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.

7. Kodi zida zazikulu za hydroxypypyl ndi methylcellulose (hpmc)?

- Yankho: Zopangira zikwangwani za hydroxypyl noth.

8. Kodi ntchito yayikulu ndi iti yomwe imagwiritsa ntchito HPMC mu ufa wa punty, ndipo zimachitika?

- Ananswer: mu ufa wa putty, hpmc amadya 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. HPMC sitenga nawo mbali pamavuto aliwonse, koma imangochita ntchito yothandiza. 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.

7.

-Answer: Mawu 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.

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- Ananswer: kutentha kwa gel Kutsitsa methoxy zomwe zili pa methoxy ↓, kutentha kwambiri kwa gel.

11. Kodi pali ubale uliwonse pakati pa dontho la putty ufa ndi hpmc?

- Inwans: 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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- Inwans Zimangosungunuka pomwe mafayilo akuwonjezeka. Mitundu yotentha yotentha siyikupezeka ndi glyloxal. Ngati kuchuluka kwa Glyloxal ndi kwakukulu, kubalaku udzathamanga, koma mafanowo adzakulira pang'ono, ndipo ngati ndalamazo ndizochepa, sizowona.

13. Kodi fungo la hydroxypropyl ndi chiyani methylcellulose (hpmc)?

- Ngati kutsuka sikwabwino kwambiri, padzakhala fungo lina lotsalira.

14. Kodi mungasankhe bwanji hydroxypypyl methylcellulose (hpmc) pazolinga zosiyanasiyana?

- Ananswer: Kugwiritsa ntchito ufa wa putty: Zofunikira ndizochepa, ndipo mavituwo ndi 100,000, omwe ndi okwanira. Chofunika ndikusunga madzi bwino. Kugwiritsa ntchito matope: Zofunikira kwambiri, kuwoneka bwino, 150,000 ndikwabwino. Kugwiritsa ntchito guluu: Zinthu zopota za nthawi yomweyo zokhala ndi mafayilo akulu amafunikira.

15. Kodi dzina lina la hydroxypypyl ndi chiyani methylcellulose?

- Ananswer: hydroxypropyl methy cellouse, Chingerezi: hydroxypropyl celyl celyl cellose cellose, hpmc kapena mhpc, hypclise; Cellulose hydroxypropyl methy ether; HyPromellose, cellulose, hydroxypropyl methy cellulose ether ether. Cellulose hydroxypropyl methy ether hypoose.

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- Ananswer: mu ufa wa putty, hpmc amadya maudindo atatu a kukula, kusungidwa kwamadzi ndikumanga. Osatenga nawo mbali pazomwe zimachitika. Zifukwa zopumira: 1. Ikani madzi ambiri. 2.

17. Kodi pali kusiyana kotani pakati pa HPMC ndi MC?

- Nthawi zambiri, kuchuluka kwa zolowa ndi 1.6 ~ 2.0, ndipo solubility ndizosiyananso ndi madigiri osiyanasiyana. Ndi ya ether ether ether ether.
. Nthawi zambiri, ngati kuchuluka kwake ndi kwakukulu, kukoma mtima ndikochepa, ndipo ma virus ndi akulu, osunga madzi ndi okwera. Pakati pawo, kuchuluka kwa kuwonjezera komwe kumapangitsa kuti pakhale madzi osunga madzi, ndipo kuchuluka kwa ma virus sikuphatikizidwa mwachindunji pamlingo wamadzi osamala yamadzi. Chiwerengero chophweka chimatengera kuchuluka kwa kuchuluka kwa ma cellulose tinthu tating'onoting'ono. Pakati pa cellulose yomwe ili pamwambapa, methyl cellulose ndi hydroxypropyl meth celyl cellulose imakhala ndi mitengo yapamwamba yamadzi.
(2) Methylcellulose imasungunuka m'madzi ozizira, ndipo zimakhala zovuta kusungunuka m'madzi otentha. Njira yake yothetsera matenda imakhala yokhazikika mu pro = 3 ~ 12. Imakhala ndi kulumikizana bwino ndi wowuma, Guar Gum, etc. ndi ambiri okonda. Kutentha kukafika kwa kutentha kwa kutentha, gelation kumachitika.
(3) Kusintha kwa kutentha kumakhudza kwambiri malo osungitsa madzi a methyl cellulose. Nthawi zambiri, kutentha kwambiri, kumadzaza madzi. Ngati kutentha kwa matope kupitirira 40 ° C, kusunga madzi a methyl cellulose idzachepetsa kwambiri, kukhudzana ndi kapangidwe ka matope.
(4) Methyl cellulose imakhudzanso ntchito yomanga ndi kutsatira matope. "Zomatira" apa zikutanthauza mphamvu yotsatsira yomwe ikukhudzidwa pakati pa chida cha wogwira ntchito ndi khomalo, ndiye kuti, kung'amba matope. Kumatira ndikokwera, kukana matope ndi kwakukulu, ndipo mphamvu zofunidwa ndi ogwira ntchito pakugwiritsa ntchito nthawi zambiri zimagwiritsidwanso ntchito ndizochulukirapo, ndipo zomangamanga za matope ndi osauka. Methyl cellulose yotsatira ndi pamlingo woyenera mu cellulose ether ether.

HPMC ndi hydroxypypyl methylcellulose, yomwe ndi cellulose yopanda inic yosakaniza ndi thonje loyeretsedwa, pogwiritsa ntchito a meloriziza oxide ndi methyl chloride ngati zomwe zingachitike. Mulingo wazolowa m'malo mwake 1.2 ~ 2.0. Katundu wake ndi wosiyana chifukwa cha ma ratios osiyanasiyana a methoxyl zomwe zili ndi hydroxypropyl.

(1) Hydroxypypyll methylcellulose imasungunuka mosavuta m'madzi ozizira, ndipo imakumana ndi zovuta pakusungunuka m'madzi otentha. Koma kutentha kwake kwamadzi otentha kumakhala kokulirapo kuposa kwa methyl cellulose. Kusungunuka m'madzi ozizira kumathandizanso kwambiri poyerekeza ndi methyl cellulose.
. Kutentha kumakhudzanso mamasukidwe awo, pamene kutentha kumakulirakulira, ma virucy amachepetsa. Komabe, mawonekedwe ake okwera amakhala ndi kutentha kochepa kuposa celyyl cellulose. Njira yake imakhala yokhazikika ikasungidwa kutentha.
. Diasc Soda ndi madzi a laimu samalimbikitsa pang'ono pa ntchito yake, koma alkali amatha kufulumizitsa kufalikira kwake ndikuwonjezera mawonekedwe ake. Hydroxypylropyl ndi chokhazikika pamchere wambiri, koma pamene kuchuluka kwa mchere ndi yayitali, mamasukidwe a hydroxypropyl so methylcellulose yankho limayamba kuchuluka.
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. Monga mowa wa mulyvinyl, madzi owuma, masamba chingamu, etc.
(6) Kutsatira kwa hydroxypropyl meth.
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18. Kodi tiyenera kuganizira chiyani pakugwiritsa ntchito ubale wapakati pa kukweza ndi kutentha kwa HPMC?

- Inwansder: Makulidwe a HPMC ndi yolingana ndi kutentha, ndiye kuti, mafayilo amawonjezeka ngati kutentha kumachepa. Makutu a chinthu chomwe timakonda kutchula zotsatila za mayeso a 2% am'madzi pa kutentha kwa madigiri 20 Celsius.

Pogwiritsa ntchito, ziyenera kudziwika kuti m'malo omwe ali ndi kutentha kwambiri pakati pa chilimwe pakati pa chilimwe komanso nthawi yachisanu, tikulimbikitsidwa kugwiritsa ntchito mafayilo ocheperako nthawi yozizira, yomwe imathamangira yomanga. Kupanda kutero, kutentha kumakhala kotsika, mamasukidwe a cellulose achulukitsa, ndipo nthawi yomwe akumva kuti yatha.

Mafayilo apakatikati: 75000-100000 amagwiritsidwa ntchito kwambiri.

Chifukwa: Kusunga kwamadzi.

Maonekedwe apamwamba: 150000-200000 amagwiritsidwa ntchito kwa polystyrene tinthu tating'onoting'ono tomwe zimapangitsa kuti gulululu ndi ufa ndi matope a mictad matope.
Chifukwa: Maonekedwe apamwamba, matope siophweka kugwa, tengani, ndikuwongolera kumanga.

Koma nthawi zambiri, chidwi cha mafalowa, malo abwino osungira. Chifukwa chake, poganizira mtengo, mafakitale ambiri owuma amasinthira sing'anga komanso otsika ma cellulose (20000-40000) ndi sing'anga-mavidiyo) kuti muchepetse kuchuluka kwake. .