Kugwiritsa ntchito HPMC mu putty powder

1. Kodi kukhuthala koyenera kwa HPMC ndi chiyani?

——Yankho: Nthawi zambiri, 100,000 yuan ndiyokwanira pa putty powder. Zofunikira pamatope ndizokwera, ndipo ma yuan 150,000 amafunikira 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.

2. Kodi zizindikiro zazikulu zaumisiri zaMtengo wa HPMC?

——Yankho: Zomwe zili ndi Hydroxypropyl ndi kukhuthala, ogwiritsa ntchito ambiri amakhudzidwa ndi zizindikiro ziwirizi. Amene ali ndi hydroxypropyl yambiri amakhala ndi madzi osungira bwino. Amene ali ndi kukhuthala kwakukulu amakhala ndi madzi osungira bwino, (osati mwamtheradi), ndipo omwe ali ndi kukhuthala kwakukulu amagwiritsidwa ntchito bwino mumatope a simenti.

3. Kodi ntchito yaikulu yogwiritsira ntchito HPMC mu putty powder ndi yotani, ndipo imachitika ndi mankhwala?

——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: osakaniza a Ca (OH) 2, CaO ndi CaCO3 pang'ono, CaO+H2O=Ca(OH)2 -Ca(OH)2+CO2=CaCO3↓+H2O Kashiamu yam'madzi ili m'madzi ndi mpweya Pansi pa CO2, calcium carbonate imapangidwa, pamene HPMC imasunga kashiamu m'madzi, imagwiranso ntchito bwino, imathandizira madzi.

4. HPMC ndi non-ionic cellulose ether, ndiye chiyani chomwe si-ionic?

——Yankho: M’mawu a anthu wamba, si ayoni ndi zinthu zomwe sizingalowe m’madzi. Ionization imatanthawuza njira yomwe electrolyte imasiyanitsidwa ndi ma ion omwe amatha kuyenda momasuka muzosungunulira zina (monga madzi, mowa). Mwachitsanzo, sodium chloride (NaCl), mchere umene timadya tsiku lililonse, umasungunuka m'madzi ndi ionizes kupanga ma ion sodium (Na+) omwe ali ndi magetsi abwino komanso ma chloride ions (Cl) omwe ali ndi vuto loipa. Ndiko kunena kuti, HPMC ikayikidwa m'madzi, sidzasiyanitsidwa ndi ma ion opangidwa, koma imakhalapo ngati mamolekyu.

5. Kodi pali ubale uliwonse pakati pa dontho la putty powder ndi HPMC?

——Yankho: Kutayika kwa ufa wa putty powder makamaka kumagwirizana ndi khalidwe la phulusa la calcium, ndipo silikugwirizana kwenikweni ndi HPMC. Kashiamu wochepa wa calcium yotuwira ndi chiŵerengero chosayenera cha CaO ndi Ca(OH)2 mu kashiamu wotuwa zidzachititsa kuti ufa uwonongeke. Ngati ili ndi chochita ndi HPMC, ndiye ngati kusungirako madzi kwa HPMC kuli koipa, kungayambitsenso imfa ya ufa.

6. Momwe mungasankhire yoyeneraMtengo wa HPMCpazifukwa zosiyanasiyana?

——Yankho: Kugwiritsa ntchito ufa wa putty: zofunikira ndizochepa, ndipo kukhuthala kwake ndi 100,000, zomwe ndi zokwanira. Chofunika ndi kusunga madzi bwino. Kugwiritsa ntchito matope: zofunikira zapamwamba, kukhuthala kwakukulu, 150,000 ndizabwinoko. Kugwiritsa ntchito guluu: zinthu pompopompo zokhala ndi kukhuthala kwakukulu zimafunikira.