Ntchito ya hydroxypropyl methylcellulose (HPMC) mu khoma putty

1. Kodi zizindikiro zazikulu za hydroxypropyl methylcellulose (HPMC) ndi ziti?

Zomwe zili ndi Hydroxypropyl ndi viscosity, ogwiritsa ntchito ambiri amakhudzidwa ndi zizindikiro ziwirizi. Amene ali ndi hydroxypropyl yambiri amakhala ndi madzi osungira bwino. Yemwe ali ndi kukhuthala kwakukulu amakhala ndi madzi osungira bwino, (osati mwamtheradi), ndipo yomwe ili ndi kukhuthala kwakukulu imagwiritsidwa ntchito bwino mumatope a simenti.

2. Kodi ntchito yaikulu yogwiritsira ntchito HPMC mu putty powder ndi yotani?
Mu putty powder, HPMC ili ndi ntchito zitatu za thickening, 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.

3. Kodi pali ubale uliwonse pakati pa dontho la putty powder ndi HPMC?
Kutayika kwa ufa wa putty powder makamaka kumagwirizana ndi khalidwe la phulusa la calcium, ndipo silikugwirizana kwenikweni ndi HPMC. Kashiamu wa calcium yotuwira komanso chiŵerengero cha CaO ndi Ca(OH)2 mu kashiamu wotuwa sizoyenera, zomwe zingayambitse ufa. Ngati ili ndi chochita ndi HPMC, ndiye kuti kusungirako madzi kosauka kwa HPMC kudzachititsanso kutaya ufa.

4. Ndi kuchuluka kwa chiyanihydroxypropyl methylcellulose (HPMC) mu khoma puttyufa?
Kuchuluka kwa HPMC komwe kumagwiritsidwa ntchito pochita ntchito kumasiyanasiyana malinga ndi nyengo, kutentha, khalidwe la calcium phulusa la m'deralo, ufa wa 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 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.

5. Kodi kukhuthala koyenera kwa hydroxypropyl methylcellulose (HPMC) ndi chiyani?
Nthawi zambiri, ma yuan 100,000 a ufa wa putty ndi wokwanira, ndipo zofunikira pamatope ndizokwera, ndipo 150,000 yuan ndiyofunika kuti igwiritsidwe 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 alibe mphamvu pa kusunga madzi. chachikulu.

6. Kodi mungasankhire bwanji hydroxypropyl methylcellulose (HPMC) pazifukwa zosiyanasiyana?
Kugwiritsa ntchito ufa wa putty: zofunikira ndizochepa, kukhuthala ndi 100,000, ndikokwanira, chofunikira ndikusunga madzi bwino. Kugwiritsa ntchito matope: zofunikira kwambiri, kukhuthala kwakukulu, 150,000 ndizabwinoko, kugwiritsa ntchito guluu: zopangira pompopompo zimafunika, kukhuthala kwakukulu.

7. Kugwiritsa ntchito HPMC mu putty powder, ndi chifukwa chiyani mavuvu mu putty powder?
Mu putty powder, HPMC imagwira ntchito zitatu zokulitsa, kusunga madzi ndi kumanga. Osatenga nawo mbali pazokambirana zilizonse. Zifukwa za bubbles:
(1) Ikani madzi ambiri.
(2) Pansi pake siuma, ndipo wina amakwapula pamwamba, ndipo sivuta kutulutsa thovu.