Methylcellulose (MC) ke ntho e tsoang ho selulose ka kalafo ea methylation mme e na le thepa e ikhethang ea 'mele le ea lik'hemik'hale. E le tlatsetso e sebelisoang haholo, e phetha karolo ea bohlokoa likarolong tse sa tšoaneng tsa indasteri, ho kenyelletsa le thepa ea mohaho, lijo, meriana, litlolo le liphahlo, joalo-joalo. motsoako oa bohlokoa ho ntlafatseng le ho ntlafatsa libopeho tsa indasteri.
1. Tšusumetso e teteaneng
Thepa e teteaneng ea methylcellulose e etsa hore e be tlatsetso ea bohlokoa indastering ea kaho le ea ho roala. Lefapheng la kaho, haholo-holo ka seretse se entsoeng ka samente le lihlahisoa tsa gypsum, methylcellulose e ka eketsa haholo ho tsitsisa le viscosity ea foromo, kahoo e ntlafatsa ho sebetsa ha thepa. Bakeng sa lipente le lipente, ho eketsoa ha methylcellulose ho ka thibela mokelikeli hore o se ke oa e-ba mokelikeli o mongata le ho ntlafatsa ho khomarela le ho tšoana ha seaparo.
Mokhoa oa ho teteka ke haholo-holo ka ho thehoa ha mohaho oa marang-rang ka tharollo ka methylcellulose. Liketane tsa limolek'hule tsa methylcellulose li kopana ka li-bond tsa hydrogen metsing ho etsa tharollo e nang le viscosity e itseng. Sebopeho sena sa marang-rang se ka hapa le ho lokisa limolek'hule tsa metsi, kahoo se eketsa viscosity le botsitso ba tsamaiso ea metsi.
2. Ho boloka metsi
Linthong tsa kaho tse kang seretse sa samente le gypsum slurries, thepa ea ho boloka metsi ea methylcellulose e bohlokoa. Lisebelisoa tsa ho haha li hloka tekanyo e lekaneng ea mongobo ho kenya letsoho karabelong nakong ea ho phekola. Ho lahleheloa ke metsi pele ho nako ho tla lebisa tlhokomelong e sa lekaneng ea thepa, ho fokotseha ha matla, kapa mapetsong holim'a metsi. Methylcellulose e etsa filimi e tšesaane holim'a thepa ho thibela ho tsoa mouoane ho feteletseng ha metsi le ho etsa bonnete ba hore samente, samente le lisebelisoa tse ling li na le mongobo o lekaneng nakong ea ts'ebetso ea ho folisa, kahoo li ntlafatsa matla le ho tšoarella ha tsona.
Phello ena ea ho boloka metsi e bohlokoa ka ho khetheha libakeng tse omileng kapa tse phahameng tsa mocheso, ho lumella methylcellulose ho ntlafatsa ts'ebetso ea lihlahisoa tsa indasteri tlas'a maemo a feteletseng a tikoloho.
3. Ho kopanya le ho matlafatsa matla a lintho tse bonahalang
Thepa ea bonding ea methylcellulose e boetse e ntle haholo tlhahiso ea indasteri. Ka mohlala, ka li-adhesives tsa lithaele le mefuta e meng ea mahlahana a tlamahano, methylcellulose e ka ntlafatsa ho khomarela ha ho etsoa, ho lumella thepa ea ho kopanya hore e khomarele hantle mosebetsing. Sebopeho sa ketane e telele ea molek'hule ea methylcellulose e ka sebelisana le lisebelisoa tsa matrix ho matlafatsa matla a tlamahano, kahoo ho ntlafatsa matla a kakaretso a sebopeho sa thepa.
Ka polasetiki e matlafalitsoeng ka fiber (FRP), methylcellulose e ka matlafatsa matla le ho tiea ha thepa e kopantsoeng ka sebopeho sa eona se nang le fiber, e fanang ka thepa e matla le ho hanyetsa ho roala, kahoo e ntlafatsa ho tšoarella ha eona lits'ebetsong tsa indasteri. thobalano.
4. Sebopeho sa lifilimi
Methylcellulose e na le bokhoni bo botle ba ho etsa lifilimi ka tharollo, 'me thepa ena e sebelisitsoe haholo masimong a mangata a indasteri. Ka indasteri ea ho roala le ho penta, methylcellulose e ka etsa filimi e sireletsang e ts'oanang e eketsang ho hanyetsa metsi le lik'hemik'hale tsa lik'hemik'hale tsa liaparo.
Lefapheng la lijo, methylcellulose e boetse e sebelisoa ka mokhoa o tloaelehileng oa ho roala kapa ho etsa lifilimi, haholo-holo ka har'a liphutheloana tse ncha tsa litholoana, meroho le lijo tse ling. Ka ho etsa filimi e tšesaane, methylcellulose e lieha ho lahleheloa ke mongobo 'me e sireletsa lijo ho tloha tikolohong e ka ntle.
5. Ho tsitsisa le emulsification
Methylcellulose e ka hlahisa tharollo e phahameng ea viscosity ha e qhibiliha ka metsing, e nang le liphello tse tsitsitseng le tse emulsifying. Thepa ena ke ea bohlokoa ka ho khetheha liindastering tse kang liphahlo, lipente, litlolo le litokisetso tsa meriana. Ka lipente le lipente, methylcellulose e ka tsitsisa ho hasana ha li-pigments, ho thibela ho rarolla, le ho ntlafatsa khanya le ho tšoana ha seaparo; ka litlolo tse entsoeng ka litlolo, methylcellulose e sebetsa e le emulsifier ho tsitsisa tsamaiso e tsoakiloeng ea oli ea metsi le ho thibela Stratification ho etsahala.
Litokisetsong tsa meriana, methylcellulose e atisa ho sebelisoa ho tiisa le ho tsitsisa litokisetso tsa mokelikeli oa molomo le ho tsamaisa lithethefatsi. Viscosity ea eona le thepa ea ho etsa lifilimi e ka thusa moriana hore o lokolloe butle, ho lelefatsa nako ea phello ea lithethefatsi, le ho ntlafatsa bioavailability ea moriana.
6. Thermal gelling thepa
Ntho ea bohlokoa ea 'mele ea methylcellulose ke boits'oaro ba eona bo ikhethang ba ho futhumatsa ha mocheso, moo e fetohang gel ha e futhumala. Tšobotsi ena e etsa hore e se ke ea nkeloa sebaka ka mekhoa e meng e khethehileng ea indasteri. Ka mohlala, indastering ea lijo, methylcellulose e sebelisoa ho lokisa lijo tse se nang mafura a mangata. Gel e entsoeng ka mor'a ho futhumatsa e na le tatso e ts'oanang le mafura, e lumellang lijo tse tlaase hore li boloke tatso le mokhoa o motle. Lefapheng la kaho, thepa ena ea gelling ea mocheso e ntlafatsa ho tšoarella le botsitso ba thepa ea kaho libakeng tse phahameng tsa mocheso.
7. Biocompatibility le botsoalle ba tikoloho
Methylcellulose, e le motsoako o entsoeng ka tlhaho, o na le biocompatibility e ntle le botsoalle ba tikoloho. Sena se etsa hore e tumme haholo mekhoeng ea sejoale-joale ea indasteri, haholo libakeng tse nang le litlhoko tse phahameng tsa ts'ireletso ea tikoloho, joalo ka meaho e tala, liphahlo tsa tikoloho le lisebelisoa tsa ho paka tse senyehang. Methylcellulose e ka senyeha ka tlhaho, ea fokotsa moroalo oa tikoloho le ho lumellana le mokhoa oa indasteri oa tsoelo-pele e tsitsitseng.
8. Ntlafatsa katleho ea ts'ebetso
Tlhahisong ea indasteri, methylcellulose e ka ntlafatsa ts'ebetso ea ts'ebetso. Ka mohlala, ka thepa ea mohaho, methylcellulose e ka ntlafatsa metsi le ho boloka metsi a thepa, kahoo e ntlafatsa boiketlo le katleho ea mohaho; ka litlolo le litokisetso tsa meriana, methylcellulose e ka ntlafatsa botsitso ba liforomo le ho fokotsa pula. le delamination, kahoo e lelefatsa sethala sa bophelo ba sehlahisoa. Thepa ena e lumella methylcellulose ho ntlafatsa haholo katleho ea tlhahiso ha e ntse e ntlafatsa mekhoa ea indasteri.
E le tlatsetso e mengata, methylcellulose e sebelisoa liindastering tse ngata tse kang kaho, lijo, meriana, litlolo, liphahlo, joalo-joalo ka lebaka la thepa ea eona e mengata e kang ho teteka, ho boloka metsi, ho kopanya, ho etsa filimi, ho tsitsisa, emulsification le gelling ea mocheso. e phetha karolo ea bohlokoa tšimong. E ke ke ea ntlafatsa feela thepa ea 'mele ea lihlahisoa tsa indasteri, empa hape e ntlafatsa katleho ea tlhahiso le ho fihlela litlhoko tse fapaneng tsa indasteri. Ka nako e ts'oanang, biocompatibility le botsoalle ba tikoloho ea methylcellulose le tsona li etsa hore e be boitsebiso bo loketseng bo finyellang litlhoko tsa tsoelo-pele e tsitsitseng. Ka ho sebelisa methylcellulose ka mokhoa o utloahalang ha ho etsoa liindasteri, e ke ke ea ntlafatsa boleng ba sehlahisoa feela, empa hape e khothalletsa tsoelo-pele le nts'etsopele ea theknoloji ea indasteri.
Nako ea poso: Sep-13-2024