HPMC ndi putty powder

1. Kodi ntchito yaikulu yogwiritsira ntchito HPMC mu putty powder ndi yotani? Kodi pali chemical reaction?

——Yankho: 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 amakhala ndi mafuta, omwe amatha kupanga ufa wa putty kukhala 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 phulusa la calcium 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.

2. Kodi HPMC yowonjezeredwa mu ufa wa putty ndi chiyani?

——Yankho: Kuchuluka kwa HPMC komwe kumagwiritsidwa ntchito pochita ntchito kumasiyanasiyana malinga ndi nyengo, kutentha, khalidwe la calcium phulusa lapafupi, mawonekedwe a putty powder ndi "khalidwe lofunika kwa makasitomala". Nthawi zambiri, pakati pa 4 kg ndi 5 kg. Mwachitsanzo: ufa wambiri wa putty ku Beijing ndi 5 kg; ambiri a putty ufa ku 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.

3. Kodi mamasukidwe oyenera a HPMC mu putty powder ndi chiyani?

——Yankho: Nthawi zambiri, 100,000 yuan ndi yokwanira pa ufa wa putty, ndipo zofunika pamatope ndi apamwamba, ndipo 150,000 yuan ndiyofunika kuti agwiritse 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.

4. Chifukwa chiyani ufa wa putty umatulutsa thovu?

——Yankho: Chodabwitsa: mathovu amapangidwa panthawi yomanga ndipo pakapita nthawi, pamwamba pa putty amaphulika.

chifukwa:

1. Pansi pake ndizovuta kwambiri ndipo liwiro la pulasitala ndilothamanga kwambiri;

2. Putty wosanjikiza mu nyumba imodzi ndi wandiweyani kwambiri, wamkulu kuposa 2.0mm;

3. Chinyezi chapansi panthaka chimakhala chokwera kwambiri, ndipo kachulukidwe kake kamakhala kokulirapo kapena kakang'ono kwambiri.

4. Pambuyo pa nthawi yomanga, kuphulika ndi kutulutsa thovu pamtunda kumayamba makamaka chifukwa cha kusakaniza kosagwirizana, pamene HPMC imagwira ntchito yosungira madzi, kukulitsa ndi kupititsa patsogolo ntchito mu ufa wa putty, ndipo sichichita nawo chilichonse.

5. Chifukwa chiyani kuchotsa ufa wa putty powder?

——Yankho: Izi zimagwirizana makamaka ndi kuchuluka ndi mtundu wa calcium wotuwa womwe wawonjezeredwa. Kashiamu wochepa wa calcium yotuwira komanso chiŵerengero chosayenera cha CaO ndi Ca(OH)2 mu kashiamu wotuwa zidzachititsa kuti ufa uchotsedwe. Nthawi yomweyo, imagwirizananso ndi HPMC. Madzi osungira madzi ndi otsika, ndipo nthawi ya phulusa la calcium hydration sikwanira, zomwe zidzachititsanso kuchotsa ufa.

6. N'chifukwa chiyani putty ndi yolemetsa popukuta?

——Yankho: Pamenepa, kukhuthala kwa cellulose komwe kumagwiritsidwa ntchito nthawi zambiri ndikokwera kwambiri. Opanga ena amagwiritsa ntchito cellulose 200,000 kupanga putty. Putty yomwe imapangidwa motere imakhala ndi kukhuthala kwakukulu, kotero imakhala yolemetsa pamene ikukanda. Kuchuluka kovomerezeka kwa putty ufa wamakoma amkati ndi 3-5 kg, ndipo mamasukidwe akayendedwe ndi 80,000-100,000.