imodzi. Kusiyana pakati pa hydroxypropyl methylcellulose (hpmc) ndi hydroxypropyll methylcellulose (hpmc)
1. Maonekedwe: Oyera a hydroxypropyll methylcellulose hpmc amawoneka ngati fluffy ndipo ali ndi kachulukidwe kambiri, kuyambira 0.3-G / ml; Wosachita zachiwerewere hydropylpyl hpmc ali ndi madzi abwino ndipo amawoneka olemera, ndipo pali kusiyana kwakukulu pakupanga.
2. Udindo: Woyera hydroxypropyll methylcellulose hpmc ufa ndi fibrous pansi pa ma microscope kapena galasi lakukulitsa; Ngakhale kuti hydroxypropyll methylcellulose hpmc imatha kuonedwa ngati ma granolar zolimba kapena makristalo okwera m'matumbo kapena galasi.
3. Okor: Oyera hydroxypypyl methylcellulose hpmc sangathe kununkhira fungo la ammonia, wowuma ndi mowa; Wosachita zachiwerewere hydropypyl methylcellulose HPMC imatha kununkhiza mitundu yonse ya fungo lambiri, ngakhale zitakhala zolemera.
4. Madzi am'madzi: ma hydroxypypyuropyl a methylcellulose njira yothetsera vuto ndi yomveka bwino, yopepuka yamadzi, gwiritsani ntchito madzi ≥ 97%; Wosankhidwa hydroxpyll methylcellulose hpmc aquous yankho ndi turbid, ndipo kuchuluka kwa madzi ndikovuta kufikira 80%.
Chachiwiri, kusunga kwamadzi kwa hydroxpyl methylcellulose hpmc, kusiyanitsa zabwino ndi zovuta:
Kusunga kwamadzi kwa methyl cellulose ether kumatentha kwambiri ndi chizindikiro chofunikira kusiyanitsa mtundu wa methyl cellulose ether. Zinthu monga kutentha kwa mpweya, kutentha ndi kuthamanga kwa mphepo kumakhudza kuchuluka kwa madzi mu matope a simenti ndi gypsum. Chifukwa chake, nthawi zosiyanasiyana, pali kusiyana kwinanso m'madzi osungiramo zinthu zomwe zimapangidwa ndi HPMC yowonjezeredwa. Mu zomanga zina, kuchuluka kwa madziwo kumatha kusinthidwa ndikukulitsa kuchuluka kwa HPMC yowonjezeredwa. Zabwino kwambiri hydroxpyl methylcellulose zinthu za HPMC zimatha kuthetsa vuto la madzi osungidwa kutentha kwambiri.
Mafayilo apamwamba kwambiri amatha kukhala ofanana komanso omwazika pa matope a simenti ndi gypsum, ndikukulani filimu yolimba, ndikupanga filimu yonyowa pang'onopang'ono, ndikupanga mphamvu ya zinthu zopangidwa ndi zinthuzo. Hydroxypypypyl methylcellulose hpmc, yunifolomu yake ndiyabwino kwambiri, imatha kuwonjezeka kwa oxusjecy kuphatikizira maatomu amatembenuza madzi a hydrogen amayamwa madzi oyenda m'madzi omangidwa, potero Kuwongolera madzi kusintha madzi chifukwa cha kutentha kwambiri komanso kukwaniritsa kutentha kwa madzi.
Chifukwa chake, mu makonzedwe otentha kwambiri, kuti akwaniritse madzi okwanira hpmc munthawi zokwanira molingana ndi njira, apo ayi, padzakhala mphamvu zosakwanira, zotsekemera, zofunda ndi kuwuma chifukwa chowuma kwambiri. Mavuto, komanso kuwonjezera zovuta zomangamanga. Pamene kutentha madontho, kuchuluka kwa HPMC yowonjezeredwa kumatha kuchepetsedwa pang'onopang'ono, ndipo madzi omwewo akwaniritsidwe.
3. Kusungunuka kwa hydroxypropyl methylcellulose hpmc
Mu makampani omanga, hydroxypropyl methylcellulose hpmc nthawi zambiri amasaloweredwa ndi madzi osalowerera, ndipo HPMC imasungunuka kokha kuti aweruze zofa. Pambuyo poyikidwa m'madzi osalowerera ndale, chinthu chomwe chimakhala chosakanikirana chosabala ndi chinthu chopanda chithandizo chopanda pake; Pambuyo poyikidwa m'madzi osalowerera ndale, malonda omwe amatha kugawidwa ndipo osati stamp palimodzi ndi malonda omwe ali ndi chithandizo chapamwamba. Pamene mawonekedwe a hydroxypypyl hpmc asungunuka mwachangu, tinthu tating'onoting'ono timasungunuka mwachangu ndipo zimapangitsa madzi kuti asatuluke pang'onopang'ono.
Kuchitidwa ndi hydroxypypyuropyl hpmc proples tinthu tating'onoting'ono, tinthu tating'onoting'ono tingathe kubalalika popanda kukalamba, koma mawonekedwe azogulitsa sangatero. Pambuyo podzuka kwakanthawi, kapangidwe kake ka mankhwala kwa nthaka imawonongedwa, ndipo madzi amatha kupasuka tinthu ta hpmc. Pakadali pano, tinthu tambiri timakhala omwazika ndi kumwa madzi okwanira, kotero kuti malonda sadzatha kapena kumwatsa pambuyo posintha. Kugawa kuthamanga ndi kusungunuka kwa chilengedwe kudatengera kuchuluka kwa mankhwalawa. Ngati chithandizo choyambirira chili chochepera, liwiro limakhala pang'onopang'ono ndipo liwiro limathamanga; Pomwe malonda omwe ali ndi chithandizo chozama ali ndi liwiro lalitali kwambiri ndikuthamanga pang'onopang'ono. Ngati mukufuna kupanga zinthu zingapo zosungunuka mwachangu pamenepa, mutha kugwetsa zinthu zochepa zomwe asungunuka pomwe asungunuka okha. Msika wapano nthawi zambiri umatchedwa kuti zinthu zomwe zapitiridwapo. Makhalidwe opangidwa ndi HPMC omwe amachitidwapo ndi: m'matumbo am'madzi, tinthu tating'onoting'ono titha kufalikira.
Makhalidwe a hydroxpyl methylcellulose hpmc ndi: Alkaline, komanso osalowerera ndale, koma osagwirizana. Mukuchita opareshoni zenizeni, mutatha kufalikira kwa zinthu zingapo ndi tinthu tokhala ngati ufa wa mphira, simenti, ndi zina, ndi zina zambiri. Pakafunika kusungunula zinthu za HPMC payokha, zinthu zingapo izi ziyenera kugwiritsidwa ntchito mosamala, chifukwa imagwirira ntchito ndikugwiritsitsa. Ngati kuli kofunikira kusungunula za hydroxpyl yopanda pake ya HPMC Central Spancelence payokha, imayenera kukhala yobalalika mwamphamvu ndi madzi otentha 95, kenako nkuzizira kuti usungunuke.
Pakugwira ntchito zenizeni, zinthu zingapozi zimasungunuka atamwazika ndi zinthu zina zolimba za tinthu tating'onoting'ono, ndipo chilengedwe chake sichikhala chosiyana ndi zinthu zosavomerezeka ndi zinthu zosasangalatsa. Ndizoyeneranso kugwiritsa ntchito zinthu zomwe zimasungunuka, popanda kuphika kapena zotupa. Mtundu wapadera wa chinthucho chitha kusankhidwa malinga ndi kuchuluka kwa chisinthiko chofunikira pomanga.
Panthawi yomanga, kaya ndi matope a simenti kapena gypsum, ambiri mwa iwo ndi njira zamchere, ndipo kuchuluka kwa HPMC yowonjezeredwa ndi yaying'ono kwambiri, yomwe imatha kubereka kwambiri pakati pa tinthu totere. Madzi akawonjezeredwa, hpmc imasungunuka mwachangu.
Post Nthawi: Feb-14-2025