Focus on Cellulose ethers

Gulu ndi kusiyana kwa putty

Gulu ndi kusiyana kwa putty

1. Kodi zigawo za putty ndi ziti?

(1) Putty wamba amapangidwa makamaka ndi ufa woyera, wowuma pang'ono ether ndi CMC (hydroxymethyl cellulose). Mtundu woterewu wa putty ulibe zomatira ndipo sulimbana ndi madzi.

(2) Phula losamva madzi la putty limapangidwa makamaka ndi zinthu zokhala ndi mamolekyulu apamwamba, ufa wa calcium wotuwa, zodzaza bwino kwambiri komanso zosunga madzi. Mtundu uwu wa putty umakhala ndi kuyera bwino, mphamvu zomangirira kwambiri, kukana madzi, ndipo ndi chinthu cholimba komanso chamchere.

(3) Ufa wosamva madzi wa putty umapangidwa makamaka ndi calcium carbonate, imvi kashiamu ufa, simenti, Nok redispersible latex ufa, wosungira madzi, ndi zina zotero. Mankhwalawa ali ndi mphamvu yolumikizana kwambiri komanso kukana madzi, ndipo ndi okhazikika komanso amchere.

(4) Emulsion-mtundu putty amapangidwa makamaka ndi polima emulsion, kopitilira muyeso-fine filler ndi wosunga madzi. Mtundu uwu wa putty umakhala ndi kukana kwamadzi bwino komanso kusinthasintha, ndipo ukhoza kugwiritsidwa ntchito pamagawo osiyanasiyana, koma mtengo wake ndi wokwera ndipo ndiwopanda ndale.

 

2. Kodi ma putty pamsika amagawidwa bwanji?

(1) Malinga ndi boma: phala putty, ufa putty, guluu ndi filler kapena simenti.

(2) Malinga ndi kukana kwa madzi: putty yosagwira madzi, putty yosagwira madzi (monga 821 putty).

(3) Malinga ndi nthawi yogwiritsira ntchito: putty kwa makoma amkati ndi putty kumakoma akunja.

(4) Malinga ndi ntchito: putty yosagwira madzi, zotanuka putty, zotayira zamadzi zotsika kwambiri.

 

3. Kodi ubwino wa putty wosagwira madzi ndi wotani?

Putty yosagwira madzi ndi imodzi mwa njira zabwino kwambiri zopangira putty wamba.

(1) Kumamatira kwamphamvu, mphamvu yomangirira kwambiri, kulimba kwina komanso kutha kwa mpweya wabwino.

(2) Sipadzakhala pulverization pambuyo poyera ndi chinyezi, ndipo imakhala ndi mphamvu yolimbana ndi madzi.

(3) Paphata pa Chichewa 157 phala losagwira madzi litagwiritsidwa ntchito, khomalo silimang’ambika, kusenda, kapena kugwa.

(4) Pakhoma pogwiritsira ntchito putty wosamva madzi ndi manja osalimba, mawonekedwe ofewa, komanso mawonekedwe abwino.

(5) Pakhoma litaipitsidwa ndi putty wosamva madzi, imatha kukolopa mwachindunji kapena kupaka utoto wamkati mkati mwa khoma. Ndipo amatha kusintha magwiridwe antchito ndi moyo wautumiki wa zokutira.

(6) Pokonzanso khoma lamkati, sikoyenera kuchotsa khoma, koma penti mwachindunji mkati mwa khoma.

(7) Putty yosagwira madzi ndi zinthu zoteteza chilengedwe zomwe sizimayambitsa kuipitsidwa kwa mpweya wamkati.

 

4. Ndi kuipa kotani kwa putty wamba?

 

(1) Kumamatira kumakhala kosauka ndipo mphamvu yomangirira ndi yochepa. Pofuna kuthana ndi vutoli, makampani ena apamwamba okonza nyumba amagwiritsira ntchito mawonekedwe ogwiritsira ntchito poyambira. Onjezani mtengo ndikuwonjezera maola a anthu.

(2) Kusalimba mtima.

(3) Pulverization idzawonekera mutangokumana ndi chinyezi.

(4) Kusweka, kusenda, kusenda ndi zochitika zina zimawonekera pakanthawi kochepa. Makamaka pochiza pa bolodi lonyowa la khoma lamkati, zimakhala zovuta kuthetsa zochitika zomwe zili pamwambazi ngakhale zitasindikizidwa kwathunthu ndi nsalu. Ntchito yomangayo ikamalizidwa, idzabweretsa kukonzanso kangapo, zomwe zidzasokoneza ogwiritsa ntchito.

(5) Popentanso khomalo, 821 putty yoyambirira iyenera kuthetsedwa, zomwe ndi zolemetsa komanso zimawononga chilengedwe.

(6) Kumwamba sikofewa mokwanira ndipo mawonekedwe ake ndi osalimba.

 

5. Poyerekeza, ubwino wa putty powder ndi chiyani?

 

Putty ufa ndi chisakanizo chapolima ufandi guluu powdery. Pambuyo kusakaniza ndi madzi mu gawo linalake, angagwiritsidwe ntchito kusanja khoma. Popeza formaldehyde imatha kupezeka mu mpweya kapena madzi, kufananiza, zomwe zili mu putty powder ndizochepa kapena kulibe, zomwe zimateteza chilengedwe.


Nthawi yotumiza: Jan-27-2023
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