1. Kodi hydroxypropyl methylcellulose amagwiritsidwa ntchito bwanji?
HPMC chimagwiritsidwa ntchito zomangira, zokutira, utomoni kupanga, 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.
2. Pali mitundu ingapo ya hydroxypropyl methylcellulose.Kodi pali kusiyana kotani pakati pawo?
HPMC akhoza kugawidwa mu mtundu nthawi yomweyo (mtundu suffix "S") ndi otentha sungunuka mtundu.Instant mtundu mankhwala kumwazikana mwamsanga m'madzi ozizira ndi kutha m'madzi.Panthawiyi, madziwo alibe mamasukidwe akayendedwe chifukwa HPMC amangomwazikana m'madzi ndipo alibe yankho lenileni.Pambuyo (kuyambitsa) kwa mphindi ziwiri, kukhuthala kwamadzimadzi kumawonjezeka pang'onopang'ono ndipo mawonekedwe a viscous colloid amapangidwa.Zinthu zosungunuka zotentha, m'madzi ozizira, zimatha kumwazikana m'madzi otentha ndikuzimiririka m'madzi otentha.Kutentha kumatsika mpaka kutentha kwina (malinga ndi kutentha kwa gel osakaniza), kukhuthala kumawonekera pang'onopang'ono mpaka colloid yowonekera ndi viscous itapangidwa.
3. Kodi njira zothetsera hydroxypropyl methylcellulose ndi ziti?
1. Zitsanzo zonse zikhoza kuwonjezeredwa kuzinthu mwa kusakaniza kowuma;
2. Iyenera kuwonjezeredwa mwachindunji ku kutentha kwabwino kwamadzimadzi.Ndi bwino kugwiritsa ntchito madzi ozizira kubala mtundu.Kuphatikiza apo, nthawi zambiri imafika pakukhuthala mkati mwa mphindi 10-90 (kuyambitsa, kugwedeza, kugwedeza)
3. Kwa zitsanzo wamba, yambitsani ndi kumwaza ndi madzi otentha poyamba, kenaka yikani madzi ozizira kuti asungunuke mutatha kusonkhezera ndi kuziziritsa.
4. Ngati agglomeration kapena kukulunga kumachitika panthawi ya kusungunuka, ndi chifukwa chakuti kugwedeza sikukwanira kapena chitsanzo wamba chimawonjezedwa mwachindunji kumadzi ozizira.Panthawiyi, gwedezani mwamsanga.
5. Ngati ming'oma imapangidwa panthawi ya kusungunuka, imatha kusiyidwa kwa maola 2-12 (nthawi yeniyeni imadalira kugwirizana kwa yankho) kapena kuchotsedwa ndi vacuum m'zigawo, pressurization, etc., ndi kuchuluka koyenera kwa defoaming wothandizira angathenso iwonjezedwa.
4. Kodi mungaweruze bwanji ubwino wa hydroxypropyl methylcellulose mosavuta komanso mwachidziwitso?
1. Kuyera.Ngakhale kuyera sikungaweruze ngati HPMC ndi yabwino kapena ayi, ndipo kuwonjezera zodzikongoletsera panthawi yopangira zinthu zidzakhudza khalidwe lake, zinthu zambiri zabwino zimakhala ndi zoyera zabwino.
2. Fineness: HPMC fineness nthawi zambiri ndi 80 mauna ndi 100 mauna, pansi pa 120, ndi bwino kwambiri.
3. Kutumiza kwa kuwala: HPMC imapanga colloid yowonekera m'madzi.Yang'anani pamayendedwe amagetsi.Kukula kwakukulu kwa magetsi, kumapangitsa kuti mpweya ukhale wabwino, zomwe zikutanthauza kuti muli zinthu zochepa zosasungunuka mmenemo.The ofukula riyakitala zambiri zabwino, ndi yopingasa riyakitala adzakhala emit ena.Koma sitinganene kuti mapangidwe a ma ketulo oyimirira ndi abwino kuposa ma ketulo opingasa.Pali zinthu zambiri zomwe zimatsimikizira mtundu wa mankhwala.
4. Kukoka kwapadera: Kuchuluka kwa mphamvu yokoka kwapadera, kulemera kwake kumakhala bwinoko.Kuchuluka kwa mphamvu yokoka, m'pamenenso hydroxypropyl ili pamwamba.Nthawi zambiri, kuchuluka kwa hydroxypropyl kumapangitsa kuti madzi asungidwe bwino.
5. Kodi hydroxypropyl methylcellulose imagwiritsidwa ntchito bwanji mu putty powder?
Kuchuluka kwa HPMC ntchito kwenikweni ntchito zimasiyanasiyana malo ndi malo, zambiri kulankhula, ndi pakati pa 4-5 makilogalamu, malingana ndi nyengo chilengedwe, kutentha, m'dera kashiamu khalidwe phulusa, putty ufa formula ndi zofunika kasitomala khalidwe.
6. Kodi kukhuthala kwa hydroxypropyl methylcellulose ndi chiyani?
Ufa wa putty nthawi zambiri umawononga RMB 100,000, pomwe matope amakhala ndi zofunika kwambiri.Zimawononga RMB 150,000 kuti zikhale zosavuta kugwiritsa ntchito.Komanso, ntchito yofunika kwambiri ya HPMC ndi kusunga madzi, kenako thickening.Mu putty ufa, bola ngati kusungirako madzi kuli bwino komanso kukhuthala kuli kochepa (7-8), ndizothekanso.Zoonadi, kukhuthala kwakukulu, kumapangitsa kuti madzi azikhala bwino.Pamene mamasukidwe akayendedwe ali pamwamba 100,000, mamasukidwe akayendedwe ali ndi zotsatira zochepa pa kusunga madzi.
7. Kodi zizindikiro zazikulu za hydroxypropyl methylcellulose ndi ziti?
Zomwe zili ndi hydroxypropyl
Zomwe zili mu Methyl
mamasukidwe akayendedwe
Phulusa
youma kuwonda
8. Kodi zida zazikulu za hydroxypropyl methylcellulose ndi ziti?
Zida zazikulu za HPMC: thonje woyengedwa, methyl chloride, propylene oxide, zopangira zina, caustic soda, ndi asidi toluene.
9. Kugwiritsa ntchito ndi ntchito yaikulu ya hydroxypropyl methylcellulose mu putty powder, ndi mankhwala?
Mu putty powder, imagwira ntchito zazikulu zitatu: kukhuthala, kusunga madzi ndi kumanga.Kukhuthala kumatha kulimbitsa cellulose ndikuyimitsa, kupangitsa kuti yankho likhale lofanana m'mwamba ndi pansi komanso kupewa kugwa.Kusunga madzi: Pangani ufa wa putty kuti uume pang'onopang'ono ndikuthandizira calcium yotuwa kuti igwire pansi pamadzi.Kugwira ntchito: Ma cellulose amakhala ndi mafuta, zomwe zimapangitsa kuti ufa wa putty ukhale wabwino.HPMC sitenga nawo gawo pazosintha zilizonse zamankhwala ndipo imangothandiza.
10. Hydroxypropyl methylcellulose ndi non-ionic cellulose ether, ndiye mtundu wosakhala wa ionic ndi chiyani?
Nthawi zambiri, zinthu za inert sizitenga nawo gawo pakusintha kwamankhwala.
CMC (carboxymethylcellulose) ndi cellulose ya cationic ndipo imasandulika kukhala tofu dregs ikakhudzidwa ndi phulusa la calcium.
11. Kodi kutentha kwa gelisi ya hydroxypropyl methylcellulose kumagwirizana ndi chiyani?
Kutentha kwa gel wa HPMC kumagwirizana ndi zomwe zili ndi methoxyl.Kutsika kwa methoxyl, kumapangitsa kutentha kwa gel.
12. Kodi pali mgwirizano uliwonse pakati pa putty powder ndi hydroxypropyl methylcellulose?
Izi ndizofunikira!HPMC ili ndi kusasunga bwino kwa madzi ndipo imayambitsa ufa.
13. Kodi pali kusiyana kotani pakati pa njira yopangira madzi ozizira ndi madzi otentha a hydroxypropyl methylcellulose?
HPMC ozizira madzi sungunuka mtundu mwamsanga omwazikana m'madzi ozizira pambuyo pamwamba mankhwala ndi glyoxal, koma si kwenikweni kupasuka.Kukhuthala kumawuka, ndiko kuti, kumasungunuka.Mtundu wotentha wosungunula sugwiritsidwa ntchito ndi glyoxal.Glyoxal ndi yayikulu kukula kwake ndipo imabalalika mwachangu, koma imakhala ndi kukhuthala pang'onopang'ono ndi voliyumu yaying'ono, komanso mosemphanitsa.
14. Kodi fungo la hydroxypropyl methylcellulose ndi chiyani?
HPMC yopangidwa ndi njira yosungunulira imapangidwa ndi toluene ndi mowa wa isopropyl monga zosungunulira.Ngati sanasambitsidwe bwino, padzakhala fungo lotsalira.(Kusalowerera ndale ndi kubwezeretsanso ndi njira yofunika kwambiri ya fungo)
15. Kodi mungasankhire bwanji hydroxypropyl methylcellulose kuti mugwiritse ntchito mosiyanasiyana?
Putty ufa: zofunika posungira madzi kwambiri komanso kumasuka kwa zomangamanga (chizindikiro chovomerezeka: 7010N)
Tondo wamba wopangidwa ndi simenti: kusungirako madzi ambiri, kukana kutentha kwambiri, kukhuthala kwakanthawi (kalasi yovomerezeka: HPK100M)
Ntchito zomatira zomanga: mankhwala pompopompo, kukhuthala kwakukulu.(Chizindikiro chovomerezeka: HPK200MS)
Mtondo wa Gypsum: kusungirako madzi ambiri, kukhuthala kwapakati-otsika, kukhuthala kwakanthawi (kalasi yovomerezeka: HPK600M)
16. Kodi dzina lina la hydroxypropyl methylcellulose ndi chiyani?
HPMC kapena MHPC imadziwikanso kuti hydroxypropyl methylcellulose ndi hydroxypropyl methylcellulose ether.
17. Kugwiritsa ntchito hydroxypropyl methylcellulose mu putty powder.Nchiyani chimayambitsa putty powder kukhala thovu?
HPMC imagwira ntchito zitatu zazikulu mu ufa wa putty: makulidwe, kusunga madzi ndi kumanga.Zifukwa za bubbles ndi:
1. Onjezerani madzi ambiri.
2. Ngati pansi siuma, kukwapula wosanjikiza wina pamwamba kumayambitsa matuza mosavuta.
18. Kodi pali kusiyana kotani pakati pa hydroxypropyl methylcellulose ndi MC:
MC, methyl cellulose, amapangidwa kuchokera ku thonje woyengedwa pambuyo pa mankhwala a alkali, pogwiritsa ntchito methane chloride monga etherifying agent, ndi machitidwe angapo kuti apange cellulose ether.Madigiri ambiri olowa m'malo ndi 1.6-2.0, ndipo kusungunuka kwa magawo osiyanasiyana olowa m'malo kulinso kosiyana.Ndi non-ionic cellulose ether.
(1) Kusungidwa kwa madzi kwa methylcellulose kumadalira kuchuluka kwake, kukhuthala, kukongola kwa tinthu ndi kusungunuka.Nthawi zambiri, kuchuluka kwake kumakhala kokulirapo, kuwongolera kumakhala kochepa, kukhuthala kwake ndikwambiri, komanso kusungitsa madzi ndikwambiri.Kuchulukitsa kowonjezerako kumakhudza kwambiri kuchuluka kwa kusungirako madzi, ndipo mamasukidwe akayendedwe alibe chochita ndi kuchuluka kwa madzi.The Kusungunuka mlingo makamaka zimadalira pamwamba kusinthidwa digirii ndi tinthu fineness wa mapadi particles.Pakati pa ma cellulose ethers omwe ali pamwambawa, methylcellulose ndi hydroxypropylmethylcellulose ali ndi milingo yayikulu yosungira madzi.
(2) Methyl cellulose amatha kusungunuka m'madzi ozizira, koma amakumana ndi zovuta pakusungunuka m'madzi otentha.Yankho lake lamadzi ndi lokhazikika pa pH = 3-12, ndipo limagwirizana bwino ndi wowuma ndi ma surfactants ambiri.Kutentha kukafika ku gel Pamene kutentha kwa gelation kumawonjezeka, gelation idzachitika.
(3) Kusintha kwa kutentha kudzakhudza kwambiri kuchuluka kwa madzi osungira madzi a methylcellulose.Nthawi zambiri, kutentha kukakhala kokwera, madzi amasunga kwambiri.Ngati kutentha kwa matope kupitirira madigiri 40, kusungidwa kwa madzi kwa methylcellulose kudzawonongeka kwambiri, kukhudza kwambiri kumanga matope.
(4) Methylcellulose imakhudza kwambiri pomanga ndi kumamatira matope.Kumamatira apa kumatanthauza kumatira komwe kumamveka pakati pa chida chogwiritsira ntchito wogwira ntchito ndi zida zoyambira khoma, ndiko kuti, kukana kukameta ubweya wamatope.Zomatira ndizokwera kwambiri, kukana kukameta ubweya wa matope ndikwambiri, ndipo mphamvu yomwe ogwira ntchito amafunikira panthawi yogwiritsira ntchito ndiyokweranso, kotero kuti ntchito yomanga matope ndi yosauka.
Nthawi yotumiza: Jan-31-2024