Za hydroxypropyl methyl cellulose

1. Kodi kugwiritsa ntchito kwa cellulose ndi chiyani?

HPMC imagwiritsidwa ntchito kwambiri m'magawo omanga, zokongoletsa, matekenti, matenti, mankhwala, zakudya, ulimi, zodzola, fodya komanso mafakitale ena. HPMC imatha kugawidwa m'makalasi ya mafakitale, kalasi ya chakudya ndi kalasi ya mankhwala malinga ndi pulogalamuyi.

2. Pali mitundu ingapo ya cellose, ndipo kusiyana kotani pakugwiritsa ntchito kwawo?

HPMC imatha kugawidwa mu mtundu wa nthawi yomweyo (dzina la Brand "s") ndi lotentha. Zogulitsa zomwe zimabalalika mwachangu m'madzi ozizira ndikuzimiririka m'madzi. Pakadali pano, madziwo alibe mafakisoni chifukwa HPMC imangomwazika m'madzi popanda kusinthika kwenikweni. Za (zolimbikitsa) kwa mphindi ziwiri, mafayilo amadzimadzi pang'onopang'ono amawonjezeka, ndikupanga mawonekedwe oyera oyera a viscous. Zogulitsa zosungunuka, mukakumana ndi madzi ozizira, zimatha kufalitsa msanga m'madzi otentha ndikusowa m'madzi otentha. Kutentha kwatsikira mpaka kutentha kwina (malingana ndi kutentha kwa gel

3. Kodi njira zosungunuka zimasinthira cellulose?

1). Mitundu yonse imatha kuwonjezeredwa ku zinthuzo posakanikirana;

2). Ngati iyenera kuwonjezeredwa mwachindunji ku yankho la kutentha kwabwinobwino, ndibwino kugwiritsa ntchito mtundu wozizira madzi. Nthawi zambiri zimatenga mphindi 1-30 kuti zitheke pambuyo powonjezera (kutsuka ndikuyambitsa)

3). Mitundu wamba imayamba kusunthidwa ndikumwazika ndi madzi otentha, kenako kusungunuka m'madzi ozizira pambuyo poyambitsa ndikuzizira;

4). Ngati kupweteka kumachitika pa kusungunuka, ndichifukwa choti kusunthika sikukukwanira kapena mtundu wamba kumawonjezeredwa mwachindunji pamadzi ozizira. Pakadali pano, ziyenera kusunthidwa mwachangu. a

5). Ngati ma bubble amapangidwa munthawi yowonongeka, akhoza kusiyidwa kuti ayimire maola 2 mpaka 12 (nthawi yakeyo amatsimikizika ndi kusasinthika kwa yankho) kapena kuchotsedwa ndi kubereka, ndi zina zoyenera. a

4. Kodi mungamuonetse bwanji kuti cellulose ndi moyenera?

1) Kuyera, ngakhale kuyera sikungadziwe ngati HPMC ndikosavuta kugwiritsa ntchito, ndipo ngati zodetsa zoyera zimawonjezeredwa pakupanga, zimakhudza mtundu wake, koma zinthu zabwino zimakhala ndi kuyera kwabwino.

2) Ubwino: Chisangalalo cha HPMC nthawi zambiri chimakhala ndi mauna 80 ndi 100 mesh, 120 mesh ndiwocheperako, omaliza anzeru.

3) Kupendekera Kuwala: Pambuyo pa HPMC imayikidwa m'madzi kuti apange cololoid colloid, yang'anani pakuwunikira kwake. Chokulirapo chowunikira, chabwino, chosonyeza kuti pali zidutswa zochepa mmenemo, ndipo kupatsirana kwa zofuula nthawi zambiri kumakhala bwino. , Chopingasa champhamvu chimakhala choyipa, koma sizitanthauza kuti mtundu wa wofuula umakhala bwino kuposa womwe ulipo wa chopingasa, ndipo pali zinthu zambiri zofunika kudziwa bwino malonda.

4) Mphamvu yokoka: yayikulu kwambiri mphamvu, yolemera. Mphamvu yapamwamba kwambiri, yokwera kwambiri ya hydroxypyl yomwe ili mu malonda. Zokwera kwambiri hydroxypyl, kukonzanso kwamadzi.

5. Kodi kuchuluka kwa cellulose mu ufa ndi chiyani?

Kuchuluka kwa HPMC yomwe imagwiritsidwa ntchito pogwiritsa ntchito nyengo, kutentha, mtundu wa phulusa lakomweko, njira ya putty ufa ndi mtundu wofunikira ndi makasitomala. Pali zosiyana m'malo osiyanasiyana, nthawi zambiri zimalankhula, zili pakati pa 4-5 kg.

6. Kodi mawu oyenera a cellulose ndi ati?

Nthawi zambiri, ufa wa putty wokwanira ndi wokwanira, ndipo kufunikira kwa matope kuli kokulirapo, ndipo kumafunikira 150,000 kukhala kosavuta kugwiritsa ntchito. Kuphatikiza apo, ntchito yofunika kwambiri ya HPMC ndi kusungidwa kwamadzi, kenako ndikukula. Mu ufa wa putty, bola ngati kusungidwa kwamadzi ndikwabwino ndipo mafayilo amatsika (7-8), nkothekanso. Inde, mafakiti apamwamba, abwinobwino achibale. Maonekedwe oposa 100,000, mawonekedwe ake alibe mphamvu pa kusungidwa kwamadzi. Big.

7. Kodi ndi ziti zomwe zisonyezo zazikulu zaukadaulo wa cellulose?

Hydroxypyl

Methyl zomwe zili

kukweza

Phulusa

Kutayika pakuyanika

8. Kodi zida zazikulu za cellulose ndi ziti?

Zopangira zazikulu za HPMC: Woyeretsa thonje, methyl chloride, ma propyle oxide, madzi a caustic soda, etc.

9. Kodi ntchito yayikulu ndi iti yomwe imagwiritsa ntchito cellulose mu ufa? Kodi pali machitidwe ena?

Mwa ufa wa putty, umasewera maudindo atatu a kukula, kusungidwa kwamadzi ndikumanga. Kukula, cellulose imatha kukulira kuti ayimitse, sungani yunifolomu moyenera komanso pansi, 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.

10.

M'malingaliro a sing'anga, zinthu zomwe sizimatenga nawo mbali pamavuto.

CMC (Carboxymethyl cellulose) ndi cellulose yophunzirira, motero itembenukira ku bean curd pomwe imakumana ndi mapira a phulusa.

11 Kodi kutentha kwa gel kuli bwanji kwa cellulose?

Kutentha kwa gel

12. Kodi pali ubale uliwonse pakati pa kuwonongeka kwa ufa wa putty ufa ndi cellulose?

Pali maubale! ! ! Ndiye kuti, kusungidwa kwamadzi kosauka kwa HPMC kudzayambitsa kuchepa kwa ufa (zomwe zimapezeka ndi ma calcium, ndi simenti, kutentha kwa khoma kudzakhudzidwa).

13. Kodi pali kusiyana kotani pakati pa madzi ozizira ndikusungunulira kutentha?

Madzi ozizira amtundu wa HPMC amathandizidwa ndi glyloxal, ndipo amabalalitsa msanga m'madzi ozizira, koma sikusungunuka. 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.

14. Chifukwa chiyani matele amakhala ndi fungo?

HPMC yopangidwa ndi njira yosungunulira imagwiritsa ntchito toluene ndi isoppanol ngati ma sol sol. Ngati kutsuka sikwabwino kwambiri, padzakhala fungo lina lotsalira. (Kuchira kwa ASTRATIURE ndi njira yofunika kwambiri ya fungo)

15. Kodi mungasankhe bwanji maletchi oyenera pazinthu zosiyanasiyana?

Ufa wa putty: pamafunika kusunga kwamadzi kwambiri, kumalimbitsa thupi

Matope wamba a simenti: amafunikira kusungidwa kwamadzi kwambiri, Kulimba Kwamatenthedwe Kwambiri, komanso Masuki

Kugwiritsa ntchito gululo lomanga: Zinthu zopota pakamwitsa. (yolimbikitsidwa

Matope a gypsum: kusungidwa kwamadzi kwambiri, pakati komanso mafayilo otsika, ma virus apompo akuwonjezeka

16. Kodi dzina lina la cellulose ndi chiyani?

Amatchulidwa kuti hpmc kapena mhpc alias hypromelwese, cellulose hydroxypropyl etheryl ether.

17. Kugwiritsa ntchito kwa cellulose mu ufa, chifukwa chake ndichifukwa chiyani ma thovu mu ufa wa punty?

Mu ufa wa putty, HPMC imasewera maudindo atatu a kukula, kusungidwa kwamadzi ndikumanga. Zomwe zimapangitsa kuti thovu ndi:

1. Madzi ambiri amawonjezeredwa.

2.

18. Kodi pali kusiyana kotani pakati pa cellulose ndi MC:

MC ndi methyl cellulose, yomwe imapangidwa ndi cellulose pochiza thonje loyengedwa ndi alkali, kugwiritsa ntchito melthane chloride ngati othandizira. Nthawi zambiri, kuchuluka kwa kuloweza ndi 1.6-2.0, ndipo solubility kumasiyana ndi madigiri osiyanasiyana. Zosiyana, sizili za 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 kuwonjezerapo kumakhudza kwambiri malo osunga madzi a anthu. Maonekedwe ake siwofanana ndi kuchuluka kwa madzi. Chiwerengero chophweka chimatengera mawonekedwe a ma cellulose tinthu tambiri. Kuchuluka kwa kusintha ndi kukongola kwa tinthu. Pakati pa cellulose yoposa cellulose yokhazikika, kusunga madzi malo a methyl cellulose ndi jinshuiqao cellose ndi apamwamba.

(2) Methylcellulose imasungunuka m'madzi ozizira, ndipo zimakhala zovuta kusungunuka m'madzi otentha. Njira yake yamadzimadzi imakhala yokhazikika mu pH = 3-12. Imakhala ndi kulumikizana bwino ndi wowuma, etc. ndi ambiri okonda. Matenthedwe pomwe kutentha kwa kutentha kwafika, minyewa idzachitika.

(3) Kusintha kwa kutentha kumakhudza kwambiri malo osungitsa madzi a methyl cellulose. Nthawi zambiri, kutentha kwambiri, kumalitsidwa madzi osunga madzi. Ngati kutentha kwa madontho kumapitilira madigiri 40, kusunga madzi a methyl cellulose idzachepetsedwa kwambiri, yomwe idzakhudza kwambiri kumanga kwa matope.

(4) Methyl cellulose imakhudzanso ntchito yomanga ndi kutsatira matope. Kutsatira pano kumatanthauza mphamvu yotsatsira yomwe ikukhudzidwa pakati pa chida cha wogwira ntchito ndi khomalo, ndiye kuti, kukana 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.