Kudziwa kugwiritsa ntchito hydroxypropyl methylcellulose mu putty powder

Kuchuluka kwa HPMC komwe kumagwiritsidwa ntchito pochita ntchito kumasiyanasiyana malinga ndi nyengo, kutentha, khalidwe la phulusa la calcium la m'deralo, ufa wa putty powder ndi "khalidwe lofunika kwa makasitomala". Nthawi zambiri, ndi pakati pa 4 kg ndi 5 kg. Mwachitsanzo: ufa wambiri wa putty ku Beijing ndi 5 kg; ambiri a putty ufa mu Guizhou ndi 5 makilogalamu m'chilimwe ndi 4.5 makilogalamu m'nyengo yozizira; kuchuluka kwa putty ku Yunnan ndi kochepa, nthawi zambiri 3 kg mpaka 4 kg, etc.

Kodi ma viscosity oyenera a hydroxypropyl methylcellulose (HPMC) ndi otani popanga putty powder?

Ufa wa putty nthawi zambiri umakhala 100,000 yuan, ndipo zofunikira pamatope ndizokwera, ndipo 150,000 yuan ndizofunikira kuti zigwiritsidwe ntchito mosavuta. Komanso, ntchito yofunika kwambiri ya HPMC ndi kusunga madzi, kenako thickening. Mu ufa wa putty, malinga ngati kusungirako madzi kuli bwino ndipo kukhuthala kuli kochepa (70,000-80,000), ndizothekanso. Zoonadi, kukwezeka kwa viscosity kumapangitsa kuti madzi azikhala bwino. Pamene mamasukidwe akayendedwe kuposa 100,000, mamasukidwe akayendedwe adzakhudza kasungidwe madzi. Osatinso zambiri.

Kodi ntchito yayikulu yogwiritsira ntchito HPMC mu putty powder ndi yotani?

Mu putty powder, HPMC imagwira ntchito zitatu zokulitsa, kusunga madzi ndi kumanga.

Kukhuthala: Ma cellulose amatha kukhuthala kuti ayimitse ndikusunga yunifolomu ya yankho mmwamba ndi pansi, ndikupewa kugwa.

Kusungirako madzi: pangani ufa wa putty kuti uume pang'onopang'ono, ndipo thandizani phulusa la calcium kuti lizigwira ntchito pansi pa madzi.

Zomangamanga: Ma cellulose ali ndi mphamvu yopangira mafuta, zomwe zingapangitse kuti ufa wa putty ukhale womanga bwino.

HPMC satenga nawo gawo pazosintha zilizonse zamakina, koma imagwira ntchito yothandiza. Kuonjezera madzi ku ufa wa putty ndikuwuyika pakhoma ndi mankhwala, chifukwa zinthu zatsopano zimapangidwira. Ngati mutachotsa ufa wa putty pakhoma kuchokera pakhoma, perani kukhala ufa, ndikugwiritsanso ntchito, sizingagwire ntchito chifukwa zinthu zatsopano (calcium carbonate) zapangidwa. ) nawonso. Zigawo zazikulu za ufa wa phulusa la calcium ndi: kusakaniza kwa Ca(OH)2, CaO ndi CaCO3 pang'ono, CaO H2O=Ca(OH)2—Ca(OH)2 CO2=CaCO3↓ H2O Udindo wa calcium phulusa. mu CO2 m'madzi ndi mpweya Pansi pa chikhalidwe ichi, calcium carbonate imapangidwa, pamene HPMC imangokhala ndi madzi, zomwe zimathandiza kuti phulusa la calcium liziyenda bwino, ndipo silitenga nawo mbali pazochitika zilizonse.