Starch ether e sebelisoa haholo-holo ka seretse sa kaho, se ka amang ho tsitsa ha seretse se thehiloeng ho gypsum, samente le kalaka, le ho fetola kaho le ho hanyetsa sag ea seretse. Hangata li-ether tsa starch li sebelisoa hammoho le li-cellulose ethers tse sa fetoloang le tse fetotsoeng. E loketse mekhoa ea bobeli e sa nke lehlakore le ea alkaline, 'me e lumellana le lisebelisoa tse ngata tsa gypsum le lihlahisoa tsa samente (tse kang li-surfactants, MC, starch le polyvinyl acetate le li-polymer tse ling tse qhibilihisang metsi).
Lintlha tse ka sehloohong:
(1) Hangata starch ether e sebelisoa hammoho le methyl cellulose ether, e bontšang phello e ntle ea synergistic pakeng tsa tse peli. Ho eketsa tekanyo e loketseng ea starch ether ho methyl cellulose ether ho ka ntlafatsa haholo ho hanyetsa sag le khanyetso ea ho thella ha seretse, ka boleng bo phahameng ba chai.
(2) Ho eketsa tekanyo e loketseng ea starch ether ho seretse se nang le methyl cellulose ether ho ka eketsa haholo ho tsitsisa ha seretse le ho ntlafatsa mokelikeli, ho etsa hore kaho e be bonolo le ho senya.
(3) Ho eketsa tekanyo e loketseng ea starch ether seretseng se nang le methyl cellulose ether ho ka eketsa ho boloka metsi a seretse le ho lelefatsa nako e bulehileng.
(4) Starch ether ke starch ether e fetotsoeng ka lik'hemik'hale e qhibilihang ka metsing, e lumellanang le li-additives tse ling ka har'a seretse sa phofo se omeletseng, se sebelisoang haholo ho khomarela lithaele, seretse sa ho lokisa, plaster plaster, putty ea bokahare le bokantle ba lebota, Mahokelo a kentsoeng ka gypsum le thepa ea ho tlatsa. , li-interface agents, seretse sa masonry.
Litšobotsi tsa starch ether haholo-holo li itšetlehile ka: (a) ho ntlafatsa ho hanyetsa sag; (b) ho ntlafatsa bokhoni ba ho sebetsa; (c) ho ntlafatsa sekhahla sa ho boloka metsi a seretse.
Sebaka sa tšebeliso:
Starch ether e loketse mefuta eohle ea (samente, gypsum, lime-calcium) kahare le bokantle ba lebota la putty, le mefuta eohle ea seretse se shebaneng le seretse sa plaster.
E ka sebelisoa e le motsoako oa lihlahisoa tse thehiloeng ho samente, lihlahisoa tse entsoeng ka gypsum le lihlahisoa tsa lime-calcium. Starch ether e lumellana hantle le meaho e meng le li-admixtures; e loketse ka ho khetheha bakeng sa ho haha metsoako e omileng e kang seretse, li-adhesives, plastering le lisebelisoa tsa ho roala. Li-starch ethers le methyl cellulose ethers (Limaraka tsa Tylose MC) li sebelisoa hammoho kahong ea metsoako e omileng ho fana ka matla a holimo, sebopeho se matla, ho hanyetsa le ho ts'oaroa habonolo. The viscosity ea seretse, likhomaretsi, plasters le roll renders tse nang le methyl cellulose ethers e phahameng e ka fokotsoa ka ho eketsoa ha starch ethers.
Nako ea poso: Jun-13-2023