Mavuto ndi mayankho omwe amapezeka kawirikawiri chifukwa cha cellulose pogwiritsa ntchito ufa wa putty

1. Mavuto ofala mu ufa wa putty

Imauma mwachangu. Izi zimachitika makamaka chifukwa kuchuluka kwa ufa wa calcium wothira phulusa (wochuluka kwambiri, kuchuluka kwa ufa wa calcium wothira phulusa womwe umagwiritsidwa ntchito mu fomula ya putty kumatha kuchepetsedwa moyenera) kumagwirizana ndi kuchuluka kwa madzi omwe ulusi umasunga, komanso kumagwirizana ndi kuuma kwa khoma.

Peelzani ndi kuzunguliza. Izi zikugwirizana ndi kuchuluka kwa madzi omwe amasungidwa, komwe kumakhala kosavuta kuchitika ngati kukhuthala kwa cellulose kuli kochepa kapena kuchuluka kwa kuwonjezerako kuli kochepa.

Kuchotsa ufa wa putty wamkati mwa khoma. Izi zikugwirizana ndi kuchuluka kwa ufa wa calcium wowonjezeredwa (kuchuluka kwa ufa wa calcium wa phulusa mu fomula ya putty ndi kochepa kwambiri kapena kuyera kwa ufa wa calcium wa phulusa ndi kochepa kwambiri, ndipo kuchuluka kwa ufa wa calcium wa phulusa mu fomula ya putty ufa kuyenera kuwonjezeredwa moyenera), ndipo zikugwirizananso ndi kuwonjezera kwa cellulose. Pali ubale pakati pa kuchuluka ndi ubwino, womwe umawonetsedwa mu kuchuluka kwa madzi omwe amasungidwa mu chinthucho. Kuchuluka kwa madzi omwe amasungidwa ndi kochepa, ndipo ufa wa calcium wa phulusa (calcium oxide mu ufa wa calcium wa phulusa sunasinthidwe kwathunthu kukhala calcium hydroxide kuti ukhale ndi madzi) nthawi sikokwanira, zomwe zimachitika.

Zotumphukira. Izi zikugwirizana ndi chinyezi chouma komanso kusalala kwa khoma, komanso zikugwirizana ndi kapangidwe kake.

Ma pinpoints amawonekera. Izi zikugwirizana ndi cellulose, yomwe ili ndi mphamvu zochepa zopangira filimu. Nthawi yomweyo, zonyansa zomwe zili mu cellulose zimagwirizana pang'ono ndi phulusa la calcium. Ngati yankholo ndi lalikulu, ufa wa putty udzawonekera ngati zotsalira za nyemba. Sungayikidwe pakhoma, ndipo ulibe mphamvu yogwirizana nthawi imodzi. Kuphatikiza apo, vutoli limachitikanso ndi zinthu monga carboxymethyl zosakanikirana ndi cellulose.

Mabowo ndi mabowo a pinbowo amawonekera. Izi zikuonekeratu kuti zikugwirizana ndi mphamvu ya pamwamba pa madzi ya yankho lamadzi la hydroxypropyl methylcellulose. Mphamvu ya madzi ya yankho lamadzi la hydroxyethyl si yoonekeratu. Zingakhale bwino kuchita chithandizo chomaliza.

Putty ikauma, imakhala yosavuta kusweka ndikukhala yachikasu. Izi zikugwirizana ndi kuwonjezera ufa wambiri wa phulusa-calcium. Ngati ufa wa phulusa-calcium wochuluka kwambiri, kuuma kwa ufa wa putty kumawonjezeka mukawuma. Ngati ufa wa putty ulibe kusinthasintha, umasweka mosavuta, makamaka ukagwiritsidwa ntchito ndi mphamvu zakunja. Zimakhudzananso ndi kuchuluka kwa calcium oxide mu ufa wa phulusa-calcium.

2. N’chifukwa chiyani ufa wa putty umachepa mukawonjezera madzi?

Cellulose imagwiritsidwa ntchito ngati chokhuthala komanso chosungira madzi mu putty. Chifukwa cha thixotropy ya cellulose yokha, kuwonjezera kwa cellulose mu putty powder kumabweretsanso thixotropy madzi akawonjezeredwa ku putty. thixotropy iyi imayamba chifukwa cha kuwonongeka kwa kapangidwe ka zinthu zomwe zili mu putty powder. Kapangidwe kameneka kamayamba pang'onopang'ono ndipo kamasweka pansi pa kupsinjika. Izi zikutanthauza kuti, kukhuthala kumachepa mukasakaniza, ndipo kukhuthala kumabwereranso mukayima.

3. Kodi chifukwa chiyani putty imakhala yolemera pang'ono poikanda?

Pankhaniyi, kukhuthala kwa cellulose komwe amagwiritsidwa ntchito nthawi zambiri kumakhala kokwera kwambiri. Opanga ena amagwiritsa ntchito cellulose 200,000 popanga putty. Putty yomwe imapangidwa mwanjira imeneyi imakhala ndi kukhuthala kwakukulu, kotero imamveka yolemera ikakanda. Kuchuluka kwa putty komwe kumalimbikitsidwa pakhoma lamkati ndi 3-5 kg, ndipo kukhuthala ndi 80,000-100,000.

4. N’chifukwa chiyani ma cellulose ofanana a viscosity amamveka mosiyana m’nyengo yozizira ndi chilimwe?

Chifukwa cha kutentha kwa chinthucho, kukhuthala kwa putty ndi matope kumachepa pang'onopang'ono kutentha kukakwera. Kutentha kukapitirira kutentha kwa gel kwa chinthucho, chinthucho chimachotsedwa m'madzi ndikutaya kukhuthala kwake. Kutentha kwa chipinda nthawi zambiri kumakhala kopitilira madigiri 30, zomwe zimasiyana kwambiri ndi kutentha kwa nthawi yozizira, kotero kukhuthala kumakhala kotsika. Ndikofunikira kusankha chinthu chokhala ndi kukhuthala kwakukulu mukamagwiritsa ntchito chinthucho nthawi yachilimwe, kapena kuwonjezera kuchuluka kwa cellulose, ndikusankha chinthu chokhala ndi kutentha kwakukulu kwa gel. Yesetsani kusagwiritsa ntchito methyl cellulose nthawi yachilimwe. Kutentha kwa gel kuli pakati pa madigiri pafupifupi 55, ngati kutentha kuli kokwera pang'ono, kukhuthala kwake kudzakhudzidwa kwambiri.