Kodi starch ether amagwiritsidwa ntchito bwanji?

Wowuma etheramagwiritsidwa ntchito makamaka pomanga matope, omwe angakhudze kusasinthika kwa matope opangidwa ndi gypsum, simenti ndi laimu, ndikusintha kumanga ndi kukana kwamatope. Ma ethers owuma nthawi zambiri amagwiritsidwa ntchito limodzi ndi ma cellulose ether omwe sanasinthidwe komanso osinthidwa. Ndizoyenera kuzinthu zonse zopanda ndale komanso zamchere, ndipo zimagwirizana ndi zowonjezera zambiri muzinthu za gypsum ndi simenti (monga ma surfactants, MC, starch ndi polyvinyl acetate ndi ma polima ena osungunuka m'madzi).

Makhalidwe a starch ether amakhala motere:

(1) Sinthani kukana kwa sag;

(2) Kuwongolera zomanga;

(3) Zokolola zambiri zamatope.

Kodi ntchito yayikulu ya starch ether mu matope owuma opangidwa ndi gypsum ndi chiyani?

Wowuma ether ndi chimodzi mwazowonjezera za ufa wowuma matope. Ikhoza kukhala yogwirizana ndi zina zowonjezera. Amagwiritsidwa ntchito kwambiri pomatira matayala, kukonza matope, pulasitala gypsum, mkati ndi kunja kwa khoma putty, gypsum-based caulking and filling materials, interface agents, masonry Mu matope, ndi oyeneranso ntchito pamanja kapena kupopera ndi simenti-based kapena gypsum. - matope opangidwa. Zimagwira ntchito motere:

(1) Wowuma ether nthawi zambiri amagwiritsidwa ntchito limodzi ndi methyl cellulose ether, zomwe zimasonyeza bwino synergistic zotsatira pakati pa awiriwa. Kuonjezera mlingo woyenerera wa starch ether ku methyl cellulose ether kungathandize kwambiri kuti sag resistance ndi kutsetsereka kwa matope, ndi zokolola zambiri.

(2) Kuonjezera kuchuluka koyenera kwa wowuma etha mumtondo wokhala ndi methyl cellulose ether kumatha kuonjezera kusasinthasintha kwa matope, kumapangitsa kuti madzi aziyenda bwino, ndikupangitsa kuti nyumbayo ikhale yosalala komanso yosalala.

(3) Kuonjezera mlingo woyenerera wa starch ether ku matope omwe ali ndi methyl cellulose ether kungapangitse kusungirako madzi mumatope ndikutalikitsa nthawi yotseguka.

Kodi maubwino ogwiritsira ntchito ndi njira zotani zosungirako wowuma ether?

Itha kugwiritsidwa ntchito ngati chophatikizira pazinthu zopangira simenti, zopangidwa ndi gypsum ndi zinthu za phulusa la calcium.

(1) Ubwino ndi kugwiritsa ntchito:

a. Imakhala ndi kukhuthala kwa matope, imatha kukhuthala mwachangu, ndipo imakhala ndi mafuta abwino;

b. Mlingo ndi wochepa, ndipo mlingo wochepa kwambiri ukhoza kukwaniritsa zotsatira zazikulu;

c. Kupititsa patsogolo luso la anti-slide la matope omangika;

d. onjezerani nthawi yotseguka ya zinthu;

e. Sinthani magwiridwe antchito azinthu ndikupangitsa kuti ntchitoyo ikhale yosavuta.

(2) Kusungirako:

Mankhwalawa amatha kutengeka ndi chinyezi ndipo amayenera kusungidwa pamalo owuma komanso ozizira muzotengera zoyambirira. Ndi bwino kugwiritsa ntchito mkati mwa miyezi 12. (Ndikoyenera kugwiritsidwa ntchito limodzi ndi high-viscosity cellulose ether, ndipo chiŵerengero cha cellulose ether ndi starch ether ndi 7:3~8:2)