Hydroxypylm methylcellulose hpmc wamba

1. Kodi cholinga chachikulu cha hpmc ndi chiani?

Izi zimagwiritsidwa ntchito ngati thicker, wobalalitsa, bander, zotupa, zokutidwa ndi mafuta, zosefera, emulsifier ndi Staverserier mu mafakitale. Amagwiritsidwanso ntchito kwambiri mu malo opangira, petrochemical, matenda, pepala, chikopa, mankhwala, chakudya komanso mafakitale odzola.

2. Udindo wa hpmc mu khoma lamkati ndi chiyani?

HPMC ili ndi ntchito zitatu: putty ufa khoma lamkati, wokulirapo, wotseka madzi ndi zomangamanga. Kuzindikira: Methyl cellulose imatha kukhala yokhazikika ndi kuyandama kapena njira yothetsera yunifolomu komanso kugwiritsa ntchito ntchito mosasinthasintha komanso kupewa kuyenda ndi kupachika. Madzi otsekemera: khoma la mkati mwake limawuma pang'onopang'ono, ndipo ma calcium owonjezerapo amawonetsedwa mu kugwiritsa ntchito madzi. Ntchito Zomanga: Methyl cellulose ili ndi ntchito yonyowa, yomwe imatha kupangitsa kuti khonde lamkati likhale ndi mawonekedwe abwino. HPMC sitenga nawo mbali pakusintha kwa mankhwala onse, koma kumangobwezeretsanso. Khoma lamkati la putty ufa, khomalo, ndikusintha kwamankhwala, chifukwa pali kutembenuka kwatsopano kwamankhwala, khoma lamkati la punty limachotsedwa pakhomalo, chifukwa cha kugwiriridwa, chifukwa cha cacium bicarbonate) adapangidwa. Zigawo zikuluzikulu za calcium ufa ndi: osakaniza a ca (o) 2, caoh, 2: kutenga nawo mbali munjira iliyonse.

3. Momwe mungaweruzire mtundu wa HPMC mwachidule komanso moyenera?

. Komabe, zinthu zabwino zimakhala ndi kuyera kwabwino. . Makina abwino, abwino kwambiri. . Chachikulucho, chabwino, chosonyeza kuti pali zidutswa zochepa mkati. . Kukhazikika kwa rirticy riyakitala nthawi zambiri kumakhala kovuta, ndipo sizitanthauza kuti mtundu wa vertication umakhala wabwino kuposa womwe walango wa wopingasa. Zogulitsa zimatsimikiziridwabe ndi zinthu zambiri. (4) Kufananira: Kukulirakulira, zolemera zabwino. Kutanthauzira kwakukulu nthawi zambiri kumachitika chifukwa cha ma hydroxypropyl omwe ali mkati mwake, ndi apamwamba kwambiri hydroypyl, malo abwino osungira.

4. Kodi tiyenera kusamala chiyani mukamagwiritsa ntchito mafayilo ndi kutentha kwa HPMC?

Makulidwe a HPMC ndi yolingana ndi kutentha, ndiye kuti, mafayilo amawonjezeka ngati kutentha kumachepa. Nthawi zambiri timanena kuti mafayilo a malonda amatanthauza chifukwa choyesa yankho lake 2% kutentha kwa madigiri 20 Celsius. Pamapulogalamu othandiza, m'malo okhala ndi kutentha kwakukulu pakati pa chilimwe komanso nthawi yozizira, tiyenera kudziwa kuti tikuyenera kugwiritsa ntchito mafayilo otsika nthawi yozizira, yomwe imathamangira yomanga. Kupanda kutero, kutentha kumakhala kotsika, mamasukidwe a cellulose achulukitsa, ndipo dzanja lidzamva kulemera.

5. Kodi kusintha kwa HPMC ndi iti?

Njira Yotentha Yokhumudwitsa: Popeza HPMC siyisungunuka m'madzi otentha, hpmc imatha kukhala yobalalika m'madzi otentha nthawi yoyamba, kenako kusungunuka mwachangu ukakhazikika. Njira ziwiri zomwe zimafotokozedwa motere: 1). Kuchuluka kwa madzi otentha ndikutenthedwa pafupifupi 70 ° C. Pang'onopang'ono onjezani hydroxypypyulloulose osasunthika, yambani HPMC yoyandama pamadzi, kenako pang'onopang'ono amapanga malo otsekemera, ndikuziziritsa kukhosi. 2). Onjezani 1/3 kapena 2/3 mwa madzi ofunikira mu chidebecho ndikutenthetsa 70 ° C. Malinga ndi njira ya 1), kufalitsa HPMC kuphika madzi otentha; Kenako onjezani kuchuluka kwa madzi ozizira kumadzi otentha mu slurry, ozizira osakaniza pambuyo poyambitsa. Njira yosakanikirana: Sakanizani ufa wa hpmc wokhala ndi zida zina zambiri za ufa, sakanizani bwino ndi blender, kenako ndikuwonjezera pang'ono pa ufa uwu sungunuka nthawi yomweyo ikamakumana ndi madzi. - ufa ndi opanga matope amagwiritsa ntchito njirayi. [Hydroxypypyl methyl cellulose (hpmc) imagwiritsidwa ntchito ngati thickener ndi wololera wa madzi mu matope a ufa. ]

6. Kodidonthoya hpmc yowonjezera mu ufa?

Kuchuluka kwa hpmc komwe kumagwiritsidwa ntchito pazomwe mungagwiritse ntchito mogwirizana kutengera nyengo, kutentha, mawonekedwe a ufa wa putty, ndi "zabwino zofunidwa ndi makasitomala". Nthawi zambiri, pali pakati pa 4 kg ndi 5 kg. Mwachitsanzo, ufa wa punty mukokongoletsa '> Beijing nthawi zambiri 5 kg; ufa wa putty mu guizhou nthawi zambiri 5 makilogalamu m'chilimwe ndi 4.5 makilogalamu nthawi yozizira; Ndalama zowonjezera za Yunnan ndizochepa, nthawi zambiri makilogalamu 3 4 ndi otero.