1. Kodi dzina lodziwika bwino la hydroxypropyl methylcellulose ndi chiyani?
——Yankho: Hydroxypropyl Methyl Cellulose, Chingerezi: Hydroxypropyl Methyl Cellulose Chidule: HPMC kapena MHPC Dzina lina: Hypromellose; Cellulose Hydroxypropyl Methyl Ether; Hypromellose, Cellulose, 2-hydroxypropylmethyl Cellulose ether. Cellulose hydroxypropyl methyl ether Hyprolose.
2. Kodi ntchito yaikulu ya hydroxypropyl methylcellulose (HPMC) ndi yotani?
——Yankho: HPMC imagwiritsidwa ntchito kwambiri pa zipangizo zomangira, zokutira, ma resini opangidwa, zinthu zomangira, mankhwala, chakudya, nsalu, ulimi, zodzoladzola, fodya ndi mafakitale ena. HPMC ikhoza kugawidwa m'magulu a zomangamanga, chakudya ndi mankhwala malinga ndi cholinga chake. Pakadali pano, zinthu zambiri zapakhomo ndi zapakhomo. Mumagulu a zomangamanga, ufa wa putty umagwiritsidwa ntchito kwambiri, pafupifupi 90% imagwiritsidwa ntchito pa ufa wa putty, ndipo wotsalawo amagwiritsidwa ntchito pa simenti ndi guluu.
3. Pali mitundu ingapo ya hydroxypropyl methylcellulose (HPMC), ndipo kodi kusiyana kwake ndi kotani?
——Yankho: HPMC ingagawidwe m'magulu awiri: mtundu wa instant ndi mtundu wa hot-solving. Zinthu za instant type zimafalikira mofulumira m'madzi ozizira ndipo zimasowa m'madzi. Panthawiyi, madziwo alibe kukhuthala chifukwa HPMC imangofalikira m'madzi popanda kusungunuka kwenikweni. Pafupifupi mphindi ziwiri, kukhuthala kwa madziwo kumawonjezeka pang'onopang'ono, ndikupanga colloid yowonekera bwino. Zinthu zosungunuka ndi madzi ozizira, zikakumana ndi madzi ozizira, zimatha kufalikira mwachangu m'madzi otentha ndikusowa m'madzi otentha. Kutentha kukatsika kufika kutentha kwina, kukhuthala kudzawonekera pang'onopang'ono mpaka zitapanga colloid yowonekera bwino. Mtundu wa hot-melt ungagwiritsidwe ntchito mu ufa wa putty ndi matope okha. Mu guluu wamadzimadzi ndi utoto, padzakhala zochitika zamagulu ndipo sizingagwiritsidwe ntchito. Mtundu wa instant uli ndi ntchito zambiri. Ungagwiritsidwe ntchito mu ufa wa putty ndi matope, komanso guluu wamadzimadzi ndi utoto, popanda zotsutsana zilizonse.
4. Kodi mungasankhe bwanji hydroxypropyl methylcellulose (HPMC) yoyenera pazifukwa zosiyanasiyana?
——Yankho::Kugwiritsa ntchito ufa wa putty: Zofunikira zake ndizochepa, ndipo kukhuthala kwake ndi 100,000, zomwe ndizokwanira. Chofunika kwambiri ndikusunga madzi bwino. Kugwiritsa ntchito matope: zofunikira kwambiri, kukhuthala kwake kwakukulu, 150,000 ndikwabwino. Kugwiritsa ntchito guluu: zinthu zomwe zimagwira ntchito mwachangu zomwe zimakhala ndi kukhuthala kwakukulu zimafunika.
5. Kodi ndi chiyani chomwe chiyenera kuganiziridwa pakugwiritsa ntchito kwenikweni ubale pakati pa kukhuthala ndi kutentha kwa HPMC?
——Yankho: Kukhuthala kwa HPMC kumagwirizana ndi kutentha, kutanthauza kuti, kukhuthala kumawonjezeka pamene kutentha kukuchepa. Kukhuthala kwa chinthu chomwe nthawi zambiri timatchula chimatanthauza zotsatira za mayeso a yankho lake lamadzi la 2% pa kutentha kwa madigiri 20 Celsius.
Pogwira ntchito, ziyenera kudziwika kuti m'madera omwe kutentha kwake kuli kosiyana kwambiri pakati pa chilimwe ndi nyengo yozizira, ndi bwino kugwiritsa ntchito kukhuthala kochepa m'nyengo yozizira, komwe kumakhala kothandiza kwambiri pa ntchito yomanga. Kupanda kutero, kutentha kukakhala kochepa, kukhuthala kwa cellulose kudzawonjezeka, ndipo mphamvu ya dzanja idzakhala yolemera pokanda.
Kukhuthala kwapakati: 75000-100000 makamaka amagwiritsidwa ntchito popanga putty
Chifukwa: kusunga bwino madzi
Kukhuthala kwakukulu: 150000-200000 Amagwiritsidwa ntchito makamaka pa polystyrene particles thermal insulation mortar ufa wa rabara ndi vitrified microbead thermal insulation mortar.
Chifukwa: Kukhuthala kwake n’kokwera, matopewo ndi ovuta kuwagwetsa, kuwagwa, ndipo kapangidwe kake kamakhala bwino.
6. HPMC ndi ether ya cellulose yosakhala ionic, ndiye kodi si ionic ndi chiyani?
——Yankho: M'mawu a anthu wamba, ma non-ion ndi zinthu zomwe sizipanga ayoni m'madzi. Kupanga ayoni kumatanthauza njira yomwe electrolyte imagawikana kukhala ma ayoni omwe ali ndi mphamvu zomwe zimatha kuyenda momasuka mu solvent inayake (monga madzi, mowa). Mwachitsanzo, sodium chloride (NaCl), mchere womwe timadya tsiku lililonse, umasungunuka m'madzi ndipo umapanga ayoni kuti apange ma ayoni a sodium (Na+) omwe ali ndi mphamvu zabwino komanso ma ayoni a chloride (Cl) omwe ali ndi mphamvu zoyipa. Izi zikutanthauza kuti, HPMC ikayikidwa m'madzi, sidzagawikana kukhala ma ayoni omwe ali ndi mphamvu, koma imapezeka mu mawonekedwe a mamolekyu.
Nthawi yotumizira: Epulo-26-2023