Ntchito ya hydroxypropyl starch ether mumatope

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Mawu oyamba a Starch Ether

Zakudya zomwe zimagwiritsidwa ntchito kwambiri ndi mbatata, tapioca starch, cornstarch, tirigu, ndi cereal starch wokhala ndi mafuta ambiri komanso mapuloteni. Kukhuthala kwa mizu monga mbatata ndi tapioca starch ndizoyera kwambiri.

Wowuma ndi polysaccharide macromolecular pawiri wopangidwa ndi shuga. Pali mitundu iwiri ya mamolekyu, yozungulira ndi nthambi, yotchedwa amylose (20%) ndi amylopectin (yomwe ili pafupi 80%). Pofuna kupititsa patsogolo ntchito ya wowuma muzomangamanga, imatha kusinthidwa ndi njira zakuthupi ndi zamankhwala kuti zipangitse kuti katundu wake akhale woyenera pazosowa zanyumba pazolinga zosiyanasiyana. Hydroxypropyl wowuma ether

Udindo wa wowuma ether mu matope

Pakuchulukirachulukira kwa matailosi, kuwonjezera wowuma ether kumatha kupititsa patsogolo kukana kwa zomatira za matailosi.

maola otsegulira owonjezera

Kwa zomatira za matailosi, zimatha kukwaniritsa zofunikira za zomatira zapadera (Kalasi E, 20min yowonjezera mpaka 30min kuti ifike ku 0.5MPa) yomwe imakulitsa nthawi yotsegulira.

Kupititsa patsogolo katundu

Wowuma ether amatha kupangitsa kuti pamwamba pa gypsum base ndi dongo la simenti likhale losalala, losavuta kugwiritsa ntchito, komanso limakongoletsa bwino. Ndilofunika kwambiri pakupaka matope ndi matope owonda okongoletsera monga putty.

Njira yogwiritsira ntchito starch ether

Wowuma ether akasungunuka m'madzi, amamwazikana mofanana mumatope a simenti. Popeza kuti molekyulu ya starch ether imakhala ndi maukonde ndipo imayendetsedwa molakwika, imatenga tinthu tating'onoting'ono ta simenti ndipo imakhala ngati mlatho wosinthira kulumikiza simenti, motero kumapereka Kuchuluka kwa zokolola za slurry kumatha kusintha anti-sag kapena anti- kuterera kwenikweni.

Kusiyana pakati pa starch ether ndi cellulose ether

(1) Wowuma ether amatha kupititsa patsogolo ntchito yotsutsa-sag ndi anti-slip ya matope, pomwe ether ya cellulose nthawi zambiri imatha kupititsa patsogolo kukhuthala komanso kusunga madzi kwadongosolo koma sangathe kuwongolera magwiridwe antchito a anti-sag ndi anti-slip.

(2) kukhuthala ndi kukhuthala

Nthawi zambiri, mamasukidwe a cellulose ether ndi pafupifupi makumi zikwi, pamene mamasukidwe akayendedwe a wowuma etha ndi mazana angapo zikwi zingapo, koma izi sizikutanthauza kuti thickening katundu wa wowuma etha matope si zabwino monga za cellulose ether, ndipo makulidwe amachitidwe awiriwa ndi osiyana.

(3) Poyerekeza ndi mapadi, wowuma ether amatha kukulitsa kwambiri zokolola zoyambira zomatira matailosi, potero kumapangitsa kuti anti-slip igwire bwino.

(4) Kuyendetsa mpweya

Ma cellulose ether ali ndi mphamvu yolowera mpweya, pamene starch ether alibe katundu wolowetsa mpweya.

(5) Maselo a cellulose ether

Ngakhale wowuma ndi cellulose amapangidwa ndi mamolekyu a glucose, njira zawo zopangira ndizosiyana. Mamolekyu onse a glucose mu wowuma amaikidwa mbali imodzi, pomwe cellulose ndi yosiyana. Chilichonse choyandikana Chigawo cha mamolekyu a glucose ndi chosiyana, ndipo kusiyana kwapangidweku kumatsimikiziranso kusiyana kwa zinthu za cellulose ndi wowuma.

Kutsiliza: Pamene cellulose ether ndi wowuma ether ntchito pamodzi, zotsatira zabwino synergistic akhoza kuchitika. Mayesero atsimikizira kuti kugwiritsa ntchito wowuma etere m'malo 20% -30% ya mapadi efa mu matope sangakhoze kuchepetsa mphamvu posungira madzi a dongosolo matope, ndipo akhoza bwino kusintha odana sag ndi odana kuzembera luso.