Focus on Cellulose ethers

Kamoo Cellulose Ethers e Ntlafatsang Ts'ebetso ea Sekhomaretsi sa Lithaele

Likhomaretsi tsa lithaele li phetha karolo ea bohlokoa indastering ea kaho ka lebaka la bokhoni ba tsona ba ho tiisa lithaele libakeng tse fapaneng, ho kenyeletsoa mabota, fuluru le lithaelese. Ts'ebetso ea sekhomaretsi e khethoa ke lintlha tse kang matla a eona, ho tšoarella, ho hanyetsa metsi le thepa ea ho kopanya. Ha nako e ntse e ea, ho ba bohlokoa le ho feta ho ntlafatsa ts'ebetso ea likhomaretsi tsa lithaele ho fihlela litlhoko tsa kaho ea sejoale-joale. Tsela e 'ngoe ea ho finyella sena ke ho sebelisa cellulose ethers.

Cellulose ethers ke sehlopha sa metsoako ea lintho tse phelang e nkiloeng ho cellulose, polymer ea tlhaho e fumanehang maboteng a lisele tsa limela tsohle. Metsoako ena e na le hydrophilic, e qhibilihang ka metsing, 'me e sebetsa haholo ka holim'a metsi. Ba na le mefuta e mengata ea lits'ebetso liindastering tse fapaneng, ho kenyeletsoa kaho, meriana, masela le lihlahisoa tsa tlhokomelo ea motho.

Ho kenya li-cellulose ethers ho likhomaretsi tsa lithaele ho ka matlafatsa sekhomaretsi sa sekhomaretsi le thepa e momahaneng, ka hona, ho ntlafatsa ts'ebetso ea sona. Mona ke mekhoa e meng ea li-cellulose ethers e ntlafatsang ts'ebetso ea likhomaretsi tsa lithaele:

Eketsa ho boloka metsi

Thepa ea bohlokoa ea li-adhesives tsa lithaele ke ho boloka metsi. Sekhomaretsi sa lithaele se hloka ho boloka botsitso le ho sebetsa ha sona ha se pepesetsoa metsi. Lebaka ke hobane metsi a ka ama haholo maqhama a sekhomaretsi. Ha li-cellulose ethers li kenyeletsoa mefuteng ea sekhomaretsi sa lithaele, li eketsa matla a sekhomaretsi sa ho boloka metsi.

Li-cellulose ethers li sebetsa joalo ka lipolima tse qhibilihang ka metsing tse monyang metsi le ho etsa ntho e kang gel. Ntho ena e kang gel e aba metsi ka ho lekana ho pholletsa le motsoako oa sekhomaretsi, ho netefatsa hore sekhomaretsi se lula se sebelisoa nako e telele. Tšobotsi ena e boetse e eketsa nako e bulehileng ea sekhomaretsi, e leng se lumellang nako e lekaneng ea hore tile e fetohe pele sekhomaretsi se omella.

Ntlafatsa matla a maqhama

Matla a tlamahano ea sekhomaretsi sa lithaele ke ntlha e 'ngoe ea bohlokoa e khethollang ts'ebetso ea sekhomaretsi. Matla a tlamahano a bolela matla a hlokahalang ho khaola maqhama pakeng tsa sekhomaretsi le substrate. Ha matla a tlamahano a phahame, sekhomaretsi se hanyetsa khatello ea maikutlo le deformation, ho etsa bonnete ba hore tile e khomarela ka thata ho substrate.

Li-cellulose ethers li ka ntlafatsa matla a tlamahano ea likhomaretsi tsa lithaele ka ho eketsa thepa ea sekhomaretsi. Thepa ea sekhomaretsi ea sekhomaretsi e khethoa ke bokhoni ba eona ba ho khomarela bokaholimo ba substrate. Ha li-cellulose ethers li kenyeletsoa mefuteng ea sekhomaretsi sa lithaele, li etsa bokaholimo bo khomarelang bo matlafatsang maqhama a sekhomaretsi.

Eketsa ho tenyetseha

Ho feto-fetoha ha maemo ke thepa ea bohlokoa ea likhomaretsi tsa lithaele, haholo ha u lokisa lithaele ho li-substrates tse nang le katoloso ea mocheso le ho honyela. Li-substrates tse kang konkreite le lehong li ka holofala haholo ka lebaka la ho fetoha ha mocheso, ho baka mapetsong a lithaele le likhomaretsi.

Li-cellulose ethers li ka sebetsa e le li-plasticizers ho eketsa elasticity ea li-adhesives, ka tsela eo li ntlafatsa ho tenyetseha ha li-adhesive tsa lithaele tsa ceramic. Li-plasticizers ke metsoako e eketsang ho feto-fetoha ha thepa ka ho fokotsa matla a intermolecular a tšoarang limolek'hule hammoho. Ha li-cellulose ethers li kenyeletsoa mefuteng ea sekhomaretsi sa lithaele, li sebetsa joaloka li-plasticizers, ho etsa hore sekhomaretsi se fokotsehe 'me se eketse ho saroloha ha sona. Thepa ena e ntlafatsa bokhoni ba sekhomaretsi ba ho mamella khatello ea maikutlo le deformation, ho netefatsa hore lithaele li khomarela ka thata ho substrate.

Ntlafatsa ts'ebetso

Ts'ebetso ea ts'ebetso ea li-adhesives tsa lithaele ke tšobotsi ea bohlokoa e khethollang boiketlo ba tšebeliso ea sekhomaretsi nakong ea kopo. Ha u sebelisa sekhomaretsi sa lithaele, motsoako oa sekhomaretsi o hloka ho ba le botsitso bo nepahetseng, viscosity le litšobotsi tsa phallo. Sena se tiisa hore sekhomaretsi se ajoa ka mokhoa o ts'oanang holim'a substrate, ho lumella lithaele hore li lumellane hantle.

Li-cellulose ethers li ka sebetsa e le li-thickeners le rheology modifiers ho ntlafatsa ts'ebetso ea li-adhesive tsa lithaele. Li-thickeners ke metsoako e eketsang viscosity ea tharollo, athe rheology modifiers ke metsoako e fetolang litšobotsi tsa phallo ea mokelikeli. Ha li-cellulose ethers li eketsoa ho lihlahisoa tsa sekhomaretsi sa lithaele, li eketsa viscosity ea motsoako oa sekhomaretsi, ho etsa bonnete ba hore sekhomaretsi se hasana ka tsela e tšoanang holim'a substrate. Thepa ena e boetse e ntlafatsa ts'ebetso ea sekhomaretsi, e etsa hore ho be bonolo ho kenya le ho lokisa lithaele.

ha re phethela

Li-cellulose ethers li bontšitsoe ho ntlafatsa haholo ts'ebetso ea li-adhesive tsa lithaele. Ha tlhoko ea li-adhesive tsa lithaele tse sebetsang hantle e ntse e eketseha, ho kenyelletsoa ha cellulose ethers mefuteng ea sekhomaretsi sa lithaele ho bohlokoa. Tšebeliso ea li-cellulose ethers ho li-adhesives tsa lithaele li ntlafatsa ho boloka metsi a sekhomaretsi, matla a tlamo, ho fetoha ha maemo le ho sebetsa. Thepa ena e netefatsa hore sekhomaretsi se ka mamella khatello ea maikutlo le deformation, se fana ka tokiso e tšepahalang ea lithaele ho li-substrates tse fapaneng.


Nako ea poso: Sep-15-2023
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