HPMC yogwiritsidwa ntchito mu putty ya pakhoma

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

HPMC Hydroxypropyl ndi kuchuluka kwake komanso kukhuthala kwake, ogwiritsa ntchito ambiri akuda nkhawa ndi zizindikiro ziwirizi. Kusunga madzi nthawi zambiri kumakhala bwino kwa iwo omwe ali ndi hydroxypropyl yambiri. Kukhuthala kwakukulu, kusunga madzi, bwino (m'malo mokhala kwathunthu), komanso kukhuthala kwakukulu, kugwiritsidwa ntchito bwino mu simenti.

2. Kodi ntchito yaikulu ya HPMC mu putty ya pakhoma ndi yotani?

Mu putty ya pakhoma, HPMC ili ndi ntchito zitatu: kukhuthala, kusunga madzi ndi kumanga.

Kukhuthala: Cellulose imatha kupindika kuti iimirire ndikusunga yankho lofanana, komanso kuti isagwedezeke. Kusunga madzi: kumapangitsa kuti putty ya pakhoma iume pang'onopang'ono, ndikuthandiza calcium yotuwa kuti ichitepo kanthu pansi pa madzi. Kapangidwe: Cellulose imakhala ndi mafuta odzola, zomwe zingapangitse kuti putty ya pakhoma ikhale yogwira ntchito bwino.

3. Kodi dontho la putty ya pakhoma likugwirizana ndi HPMC?

Kutsika kwa wall putty kumagwirizana kwambiri ndi ubwino wa calcium ya phulusa, koma osati ndi HPMC. Ngati kuchuluka kwa calcium mu phulusa la calcium ndi chiŵerengero cha CaO ndi Ca(OH)2 mu phulusa la calcium sikoyenera, zidzapangitsa kuti ufa utathe. Ngati zikugwirizana ndi HPMC, ndiye kuti kusasunga bwino madzi kwa HPMC kudzapangitsanso kuti ufa utathe.

4. Kodi hydroxypropyl methyl cellulose (HPMC) ndi yochuluka bwanji mu wall putty?

Kuchuluka kwa HPMC komwe kumagwiritsidwa ntchito kumasiyana malinga ndi nyengo, kutentha, mtundu wa calcium wa phulusa la m'deralo, mtundu wa putty wa pakhoma, ndi "ubwino womwe makasitomala amafunikira". Kawirikawiri, pakati pa 4 kg ndi 5 kg. Mwachitsanzo: Beijing wall putty nthawi zambiri imakhala 5 kg; Guizhou nthawi zambiri imakhala 5 kg nthawi yachilimwe ndi 4.5 kg nthawi yozizira; Yunnan ndi yaying'ono, nthawi zambiri imakhala 3 kg mpaka 4 kg ndi zina zotero.

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

Putty ya pakhoma nthawi zambiri imakhala 100,000, koma matope ndi ovuta kwambiri, ndipo amafunika 150,000 kuti agwire ntchito. Komanso, ntchito yofunika kwambiri ya HPMC ndikusunga madzi, kutsatiridwa ndi kukhuthala. Mu putty ya pakhoma, bola ngati kusunga madzi kuli bwino, kukhuthala kumakhala kotsika (70-80,000), n'zothekanso, ndithudi, kukhuthala kumakhala kwakukulu, ndipo kusunga madzi kumakhala bwino. Kukhuthala kukapitirira 100,000, kukhuthala sikukhudza kusunga madzi.

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

Kugwiritsa ntchito pulasitiki ya pakhoma: kufunika kwake n'kochepa, kukhuthala kwake ndi 100,000, ndikokwanira, chofunika kwambiri ndikusunga madzi bwino. Kugwiritsa ntchito matope: zofunikira kwambiri, kukhuthala kwake kwakukulu, kuposa 150,000, kugwiritsa ntchito guluu: zinthu zosungunuka mwachangu, kukhuthala kwake kwakukulu.

7. Kodi kugwiritsa ntchito HPMC mu wall putty, n’chiyani chimapangitsa wall putty kupanga thovu?

HPMC imagwira ntchito zitatu mu putty ya pakhoma: kukhuthala, kusunga madzi ndi kumanga. Musachite nawo chilichonse. Zifukwa za thovu:

(1) Madzi ambiri amaikidwa.

(2) Gawo la pansi silili louma, ndipo gawo lina limakandapo, lomwe limakhala losavuta kupopera.