Kugwiritsa ntchito hydroxypropyl methylcellulose mu ufa wa putty

Putty ndi mtundu wa zipangizo zokongoletsera nyumba. Chidutswa cha putty yoyera pamwamba pa chipinda chopanda kanthu chomwe changogulidwa kumene nthawi zambiri chimakhala choyera choposa 90 ndipo chopyapyala choposa 330. Putty imagawidwa m'makoma amkati ndi akunja. Putty yakunja ya khoma iyenera kukana mphepo ndi dzuwa, kotero imakhala ndi guluu wambiri, mphamvu yayikulu komanso chizindikiro chotsika pang'ono choteteza chilengedwe. Chizindikiro chokwanira cha putty yamkati ya khoma ndi chabwino, chathanzi komanso choteteza chilengedwe, kotero khoma lamkati siligwiritsidwa ntchito kunja ndipo khoma lakunja siligwiritsidwa ntchito mkati. Nthawi zambiri putty imakhala yochokera ku gypsum kapena simenti, kotero pamwamba pake pamakhala povuta komanso posavuta kulumikiza mwamphamvu. Komabe, panthawi yomanga, ndikofunikirabe kugwiritsa ntchito wosanjikiza wa cholumikizira pamunsi kuti mutseke maziko, ndikuwonjezera kumatirira kwa khoma, kuti putty ikhale yolumikizidwa bwino pamwamba pa maziko.

Kuchuluka kwa HPMC komwe kumagwiritsidwa ntchito kumadalira nyengo, kusiyana kwa kutentha, mtundu wa ufa wa calcium ash wa m'deralo, njira yobisika yopangira ufa wa putty ndi "ubwino womwe wogwiritsa ntchito amafunikira". Kawirikawiri, pakati pa 4kg ndi 5kg.

HPMC ili ndi ntchito yopaka mafuta, zomwe zimapangitsa kuti ufa wa putty ugwire bwino ntchito. Hydroxypropyl methylcellulose sigwira ntchito mu compound reaction iliyonse, koma imangothandiza. Putty powder ndi mtundu wa compound reaction pamwamba pa madzi ndi pakhoma,

Mavuto ena:

1. Kuchotsa ufa wa putty

A: Izi zikugwirizana ndi mlingo wa calcium ya mandimu, komanso zikugwirizana ndi mlingo ndi ubwino wa cellulose, zomwe zimawonekera mu kuchuluka kwa madzi omwe amasungidwa mu chinthucho. Kuchuluka kwa madzi omwe amasungidwa ndi madzi ndi kochepa ndipo nthawi yokwanira ya calcium ya mandimu sikokwanira.

2. Kuchotsa ndi kuzunguliza ufa wa putty

A: Izi zikugwirizana ndi kuchuluka kwa madzi omwe amasungidwa. Kukhuthala kwa cellulose ndi kochepa, zomwe zimachitika mosavuta kapena mlingo wake ndi wochepa.

3. Nsonga ya singano ya ufa wa putty

Izi zikugwirizana ndi cellulose, yomwe ili ndi mphamvu yoipa yopangira filimu. Nthawi yomweyo, zinthu zosafunika mu cellulose zimakhala ndi zotsatirapo pang'ono ndi phulusa la calcium. Ngati zotsatirapo zake zili zolimba, ufa wa putty udzawonetsa momwe tofu residues zilili. Sizingapite kukhoma ndipo sizimalumikizana. Kuphatikiza apo, zimapezekanso m'zinthu monga magulu a carboxy osakanikirana ndi cellulose.