1. Kodi hydroxypropyl methylcellulose ndi chiyani?
——Yankho: Hydroxypropyl Methyl Cellulose, English: Hydroxypropyl Methyl Cellulose Chidule cha HPMC kapena MHPC Alias: Hypromellose; Ma cellulose Hydroxypropyl Methyl Etha; Hypromellose, Cellulose, 2-hydroxypropylmethyl Cellulose ether. Cellulose hydroxypropyl methyl ether Hyprolose.
2. Kodi hydroxypropyl methylcellulose (HPMC) amagwiritsidwa ntchito bwanji?
——Yankho: HPMC imagwiritsidwa ntchito kwambiri pomanga, zokutira, utomoni wopangira, zoumba, mankhwala, chakudya, nsalu, ulimi, zodzoladzola, fodya ndi mafakitale ena. HPMC akhoza kugawidwa mu kalasi yomanga, kalasi chakudya ndi kalasi mankhwala malinga ndi cholinga. Pakali pano, zinthu zambiri zapakhomo ndizomangamanga. Pomanga kalasi, ufa wa putty umagwiritsidwa ntchito mochuluka, pafupifupi 90% umagwiritsidwa ntchito ngati putty ufa, ndipo enawo amagwiritsidwa ntchito ngati matope a simenti ndi guluu.
3. Pali mitundu ingapo ya hydroxypropyl methylcellulose (HPMC), ndipo pali kusiyana kotani pakugwiritsa ntchito kwawo?
——Yankho: HPMC ikhoza kugawidwa mu mtundu wanthawi yomweyo ndi mtundu wotentha-kusungunuka. Instant mtundu mankhwala kumwazikana mwamsanga m'madzi ozizira ndi kutha m'madzi. Panthawi imeneyi, madzi alibe mamasukidwe akayendedwe chifukwa HPMC yekha omwazika m'madzi popanda kuvunda kwenikweni. Pafupifupi mphindi 2, kukhuthala kwamadzimadzi kumawonjezeka pang'onopang'ono, ndikupanga mawonekedwe a viscous colloid. Zogulitsa zotentha zotentha, zikakumana ndi madzi ozizira, zimatha kumwazikana m'madzi otentha ndikuzimiririka m'madzi otentha. Kutentha kumatsika mpaka kutentha kwina, kukhuthala kumawonekera pang'onopang'ono mpaka kumapanga mawonekedwe a viscous colloid. Mtundu wosungunuka wotentha ukhoza kugwiritsidwa ntchito mu putty ufa ndi matope. Mu guluu wamadzimadzi ndi utoto, padzakhala zochitika zamagulu ndipo sizingagwiritsidwe ntchito. Mtundu wapomwepo uli ndi mapulogalamu ambiri. Itha kugwiritsidwa ntchito mu putty ufa ndi matope, komanso guluu wamadzimadzi ndi utoto, popanda zotsutsana.
4. Kodi mungasankhire bwanji hydroxypropyl methylcellulose (HPMC) pazifukwa zosiyanasiyana?
-—Yankho :: Kugwiritsa ntchito ufa wa putty: Zofunikira ndizochepa, ndipo kukhuthala kwake ndi 100,000, zomwe ndi zokwanira. Chofunika ndi kusunga madzi bwino. Kugwiritsa ntchito matope: zofunikira zapamwamba, kukhuthala kwakukulu, 150,000 ndizabwinoko. Kugwiritsa ntchito guluu: zinthu pompopompo zokhala ndi kukhuthala kwakukulu zimafunikira.
5. Kodi tiyenera kulabadira chiyani pakugwiritsa ntchito kwenikweni ubale pakati pa mamasukidwe akayendedwe ndi kutentha kwa HPMC?
——Yankho: The mamasukidwe akayendedwe a HPMC ndi inversely molingana ndi kutentha, ndiko kunena, mamasukidwe akayendedwe amawonjezeka pamene kutentha amachepetsa. Kukhuthala kwa chinthu chomwe timakonda kunena kumatanthawuza zotsatira za mayeso a 2% yankho lamadzi pa kutentha kwa madigiri 20 Celsius.
Muzochita zothandiza, ziyenera kuzindikiridwa kuti m'madera omwe ali ndi kusiyana kwakukulu kwa kutentha pakati pa chilimwe ndi chisanu, tikulimbikitsidwa kugwiritsa ntchito kukhuthala kochepa kwambiri m'nyengo yozizira, yomwe imakhala yabwino kwambiri pomanga. Kupanda kutero, kutentha kukakhala kotsika, kukhuthala kwa cellulose kumawonjezeka, ndipo dzanja limamva kukhala lolemetsa pokanda.
Kukhuthala kwapakatikati: 75000-100000 makamaka amagwiritsidwa ntchito pa putty
Chifukwa: kusunga bwino madzi
Mkulu mamasukidwe akayendedwe: 150000-200000 Makamaka ntchito polystyrene tinthu matenthedwe kutchinjiriza matope mphira ufa ndi vitrified microbead matenthedwe kutchinjiriza matope.
Chifukwa: The mamasukidwe akayendedwe ndi mkulu, matope si kosavuta kugwa, sag, ndi kumanga bwino.
6. HPMC ndi non-ionic cellulose ether, ndiye chiyani chomwe si-ionic?
——Yankho: M’mawu a anthu wamba, si ayoni ndi zinthu zomwe sizimayanika m’madzi. Ionization imatanthawuza njira yomwe electrolyte imasiyanitsidwa ndi ma ion omwe amatha kuyenda momasuka muzosungunulira zina (monga madzi, mowa). Mwachitsanzo, sodium chloride (NaCl), mchere umene timadya tsiku lililonse, umasungunuka m'madzi ndi ionizes kupanga ma ion sodium (Na+) omwe ali ndi magetsi abwino komanso ma chloride ions (Cl) omwe ali ndi vuto loipa. Ndiko kunena kuti, HPMC ikayikidwa m'madzi, sidzasiyanitsidwa ndi ma ion opangidwa, koma imakhalapo ngati mamolekyu.
Nthawi yotumiza: Apr-26-2023