Kodi mawu oyenera a hydroxypypyl a methylcellulose (hpmc)?
Mafuta a putty nthawi zambiri amakhala okwanira 100,000, ndipo zofuna za matope ndizokwera, ndipo 150,000 yun ndiyofunikira kuti igwiritse ntchito mosavuta. Kuphatikiza apo, ntchito yofunika kwambiri ya HPMC ndi kusungidwa kwamadzi, kenako ndikukula. Mu ufa wa putty, bola ngati kusungidwa kwamadzi ndikwabwino ndipo mafayilo ali otsika (70,000-80,000), nkothekanso. Inde, mafakiti apamwamba, abwinobwino achibale. Maonekedwe oposa 100,000, chidwi cha ma visc chimakhudza kusungidwa kwamadzi. Osatinso.
Kodi njira zothetsera zosokoneza ndi ziti za hydroxypropyl methylcellulose (hpmc)?
. Komabe, ambiri mwazinthu zabwino zimakhala ndi kuyera kwabwino.
. Ambiri hpmc opangidwa mu hebei ndi 80 mesh. Omaliza chabwino, nthawi zambiri, zabwinoko.
. Mphatso yayikulu yochokera kudera, yabwinoko, yomwe ikuwonetsa kuti pali zokhutira zochepa mmenemo. . Kufalikira kwa vatirs nthawi zambiri kumakhala kwabwino, ndipo chifukwa cha zopingasa ndizoyipa, koma sizitanthauza kuti mawonekedwe ofukula ofukula ndi abwino kuposa omwe ali ndi zinthu zambiri zimatsimikiziridwa ndi zinthu zambiri. (4) Mphamvu yokoka: mphamvu yayikulu, yolemera. Kutanthauzira kwake ndi kwakukulu, nthawi zambiri chifukwa cha gulu la hydroxypropyl mkati mwake ndi lalitali, ndipo zomwe zili ndi hydroxypyl gululi ndizokwera, kusungidwa kwamadzi ndikwabwino.
Kodi ntchito yayikulu ndi iti yomwe imagwiritsidwa ntchito kwa HPMC mu ufa, ndipo zimachitika?
Mu ufa wa putty, HPMC imasewera maudindo atatu a kukula, kusungidwa kwamadzi ndikumanga.
Kukula: cellose imatha kukwiya kuyimitsa ndikusunga yunifolomu ndikutsika, ndikupewa kusamba.
Kusungidwa kwamadzi: Pangani utoto wa putty pang'onopang'ono, ndikuthandizira calcium kuti muchitepo kanthu pansi pamadzi.
Ntchito Yomanga: Cellulose ili ndi mafuta owuma, omwe amatha kupangitsa kuti ufa ukhale ndi zomangamanga. HPMC sitenga nawo mbali pamavuto aliwonse, koma imangochita ntchito yothandiza. Kuonjezera madzi ku ufa wa putty ndikuyika pakhoma ndikuchitika kwa mankhwala, chifukwa zinthu zatsopano zimapangidwa. Mukachotsa ufa wa pakhoma kuchokera kukhoma, ndikupukuta mu ufa, ndikuigwiritsanso ntchito, sizigwira ntchito chifukwa zinthu zatsopano (calcium carbonate) yopangidwa. Nawonso.
Zigawo zikuluzikulu za Ash calcium ufa ndi: osakaniza a ca (o) 2, caon 2 h2o = Caco3 ↓ + h2o phulusa M'madzi ndi mpweya pansi pa katswiri wa CO2, calcium carbonate yopangidwa, pomwe hpmc imangosuta madzi, kuthandiza momwe zimakhalira ndi kashiamu, ndipo sizitenga nawo mbali pazochitika zilizonse.
Ubwenzi wapakati pa ufa ndi kutentha kwa HPMC, nchiyani chikuyenera kukhala chisamaliro cha ntchito yothandiza?
Makulidwe a HPMC ndi yolingana ndi kutentha, ndiye kuti, mafayilo amawonjezeka ngati kutentha kumachepa. Makutu a chinthu chomwe timakonda kutchula zotsatila za mayeso a 2% am'madzi pa kutentha kwa madigiri 20 Celsius.
Pogwiritsa ntchito, ziyenera kudziwika kuti m'malo omwe ali ndi kutentha kwambiri pakati pa chilimwe pakati pa chilimwe komanso nthawi yachisanu, tikulimbikitsidwa kugwiritsa ntchito mafayilo ocheperako nthawi yozizira, yomwe imathamangira yomanga. Kupanda kutero, kutentha kumakhala kotsika, mamasukidwe a cellulose achulukitsa, ndipo nthawi yomwe akumva kuti yatha.
Mafayilo apakatikati: 75000-100000 makamaka amagwiritsidwa ntchito
Chifukwa: Kusunga kwamadzi
Maonekedwe apamwamba: 150000-200000 amagwiritsidwa ntchito makamaka polystyrene tinthu osasunthika ufa wa mphira ndi matope a mictaudenti okonda.
Chifukwa: Maonekedwe apamwamba, matope siophweka kugwa, sigging, zomwe zimathandiza kumanga.
Post Nthawi: Meyi-18-2023