HPMC yogwiritsidwa ntchito mu wall putty

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

HPMC Hydroxypropyl zili ndi mamasukidwe akayendedwe, owerenga ambiri nkhawa zizindikiro ziwirizi.Kusungidwa kwamadzi nthawi zambiri kumakhala kwabwino kwa omwe ali ndi hydroxypropyl yambiri.Kukhuthala kwakukulu, kusungidwa kwa madzi, bwino (osati mtheradi) bwino, komanso kukhuthala kwakukulu, kugwiritsidwa ntchito bwino mumatope a simenti.

2. Kodi ntchito yayikulu yogwiritsira ntchito HPMC mu khoma putty ndi chiyani?

Mu khoma putty , HPMC ali ndi ntchito zitatu: thickening, kusunga madzi ndi kumanga.

Kukhuthala: Ma cellulose amatha kukhuthala kuti ayimitse ndikusunga yunifolomu ya yankho, komanso kuti asagwedezeke.Kusungirako madzi: pangitsa kuti khoma la putty liume pang'onopang'ono, ndipo thandizani kashiamu wotuwa kuti achitepo kanthu pochita madzi.Kumanga: Ma cellulose ali ndi mphamvu yopangira mafuta, zomwe zingapangitse kuti khoma la putty likhale ndi ntchito yabwino.

3. Kodi dontho la khoma la putty likugwirizana ndi HPMC?

Dontho la khoma la putty limagwirizana kwambiri ndi phulusa la calcium, koma osati HPMC.Ngati kashiamu wa phulusa la calcium ndi chiŵerengero cha CaO ndi Ca(OH)2 mu phulusa la calcium ndizosayenera, zingayambitse ufa.Ngati ili ndi chochita ndi HPMC, ndiye kuti kusasunga bwino kwa madzi kwa HPMC kungayambitsenso kugwa kwa ufa.

4. Kodi hydroxypropyl methyl cellulose (HPMC) ndi ndalama zingati mu khoma putty?

Kuchuluka kwa HPMC ntchito kwenikweni ntchito zimasiyanasiyana malinga ndi nyengo, kutentha, m'deralo phulusa kashiamu khalidwe, chilinganizo cha khoma putty , ndi "khalidwe chofunika makasitomala".Nthawi zambiri, pakati pa 4 kg ndi 5 kg.Mwachitsanzo: Beijing wall putty nthawi zambiri imakhala 5 kg;Guizhou nthawi zambiri imakhala 5 kg m'chilimwe ndi 4.5 kg m'nyengo yozizira;Yunnan ndi yaying'ono, nthawi zambiri 3 kg mpaka 4 kg ndi zina zotero.

5. Kodi kukhuthala koyenera kwa hydroxypropyl methyl cellulose (HPMC) ndi chiyani?

wall putty nthawi zambiri imakhala 100,000, koma matope ndizovuta kwambiri, ndipo zimatengera 150,000 kuti agwire ntchito.Komanso, ntchito yofunika kwambiri ya HPMC ndi kusunga madzi, kenako thickening.Mu khoma putty , malinga ngati kusungirako madzi kuli bwino, kukhuthala kumakhala kotsika (70-80,000), n'zothekanso, ndithudi, kukhuthala ndipamwamba, ndipo kusungirako madzi kwachibale kuli bwino.Pamene mamasukidwe akayendedwe kuposa 100,000, mamasukidwe akayendedwe alibe mphamvu pa kusunga madzi.

6. Kodi mungasankhire bwanji hydroxypropyl methylcellulose (HPMC) pazifukwa zosiyanasiyana?

Kugwiritsa ntchito khoma la putty : chofunikira ndi chochepa, kukhuthala ndi 100,000, ndikokwanira, chofunikira ndikusunga madzi bwino.Kugwiritsa ntchito matope: zofunikira zapamwamba, kukhuthala kwakukulu, kuposa 150,000, kugwiritsa ntchito guluu: zinthu zomwe zimasungunuka mwachangu, kukhuthala kwakukulu.

7. Kugwiritsa ntchito HPMC mu wall putty, nchiyani chimapangitsa kuti khoma la putty litulutse thovu?

HPMC imagwira ntchito zitatu pakhoma putty: makulidwe, kusunga madzi ndi kumanga.Osachita nawo chilichonse.Zifukwa za bubbles:

(1) Amathiridwa madzi ambiri.

(2) Pansi pake siuma, ndipo nsanjika ina imakwapula, yomwenso imakhala yosavuta kutulutsa thovu.