Hydroxypropylmethylcellulose (HPMC) ke motsoako oa selulose o sebelisoang haholo joalo ka setlamo le setenya mafapheng a fapaneng ho kenyelletsa kaho, meriana le lijo. HPMC ke polymer e qhibilihang ka metsing e ka fanang ka melemo e mengata joalo ka sekhomaretsi indastering ea lithaele. Sehloohong sena, re tšohla karolo ea hydroxypropylmethylcellulose (HPMC) ho li-adhesives tsa lithaele.
tsebisa
Likhomaretsi tsa lithaele ke lisebelisoa tse thehiloeng ho polymer tse sebelisetsoang ho kopanya lithaele ho likarolo tse fapaneng tse kang seretse sa samente, konkreite, plasterboard le libaka tse ling. Likhomaretsi tsa lithaele li ka aroloa ka likhomaretsi tsa manyolo le likhomaretsi tsa inorganic. Likhomaretsi tsa lithaele tsa tlhaho hangata li thehiloe holim'a li-polymers tsa maiketsetso tse kang epoxy, vinyl kapa acrylic, ha li-adhesives tsa inorganic li thehiloe holim'a samente kapa lintho tsa liminerale.
HPMC e sebelisoa haholo joalo ka tlatsetso ho li-adhesives tsa manyolo ka lebaka la thepa ea eona e ikhethang joalo ka ho boloka metsi, motenya, le thepa ea rheological. Lintho tsena li bohlokoa ho etsa bonnete ba hore likhomaretsi tsa lithaele li tsoakane hantle, li khothaletsa ho sebetsa hantle le ho fokotsa nako ea ho omisa. HPMC e boetse e thusa ho eketsa matla a sekhomaretsi sa lithaele, se etsa hore e tšoarelle haholoanyane.
ho boloka metsi
Ho boloka metsi ke thepa ea bohlokoa ho etsa bonnete ba hore li-adhesives ha li ome kapele haholo. HPMC ke e babatsehang ea ho boloka metsi, e ka boloka ho fihlela ho 80% ea boima ba eona metsing. Thepa ena e etsa bonnete ba hore sekhomaretsi se lula se sebelisoa nako e telele, se fa mochini oa lithaele nako e ngata ea ho beha tile, esita le letsatsi lohle. Ho feta moo, HPMC e ntlafatsa ts'ebetso ea ho folisa, ho netefatsa maqhama a matla le ho ntlafatsa ho tšoarella.
motenya
The viscosity ea li-adhesives tsa lithaele e amana ka ho toba le botenya ba motsoako, bo amang boiketlo ba kopo le matla a tlamahano. HPMC ke setenya se sebetsang hantle haholo se ka fihlelang li-viscosity tse phahameng esita le maemong a tlase. Ka hona, baetsi ba sekhomaretsi ba lithaele ba ka sebelisa HPMC ho hlahisa likhomaretsi tsa lithaele ka mokhoa o tsitsitseng o loketseng tlhokahalo efe kapa efe e khethehileng ea kopo.
Lintho tsa Rheological
Thepa ea rheological ea HPMC e ka ntlafatsa ts'ebetso ea li-adhesive tsa lithaele. Viscosity e fetoha ka tekanyo ea khatello ea ho kuta e sebelisitsoeng, thepa e tsejoang e le ho kuta moriri. Ho fokotsa lithaele ho ntlafatsa litšobotsi tsa phallo ea sekhomaretsi sa lithaele, ho etsa hore ho be bonolo ho hasana holim'a marako le fatše ka boiteko bo fokolang. Ntle le moo, HPMC e fana ka kabo ea motsoako, ho qoba ho putlama le ts'ebeliso e sa lekanang.
Ntlafatsa matla a maqhama
Ts'ebetso ea li-adhesives tsa tile e itšetlehile haholo ka matla a tlamahano: sekhomaretsi se tlameha ho ba matla ka ho lekaneng ho boloka tile e khomaretsoe ka thata holim'a metsi le ho mamella likhatello tse ka etsang hore tile e phatlohe kapa e fetohe. HPMC e kenya letsoho thepa ena ka ho ntlafatsa boleng ba sekhomaretsi le ho ntlafatsa ho khomarela ha eona. Li-resin tsa HPMC li hlahisa likhomaretsi tsa lithaele tse sebetsang hantle tse nang le maemo a holimo a matla a tlamo le ho tšoarella ho eketsehileng. Tšebeliso ea HPMC e thusa ho thibela ho phatloha ha grout kapa lithaele le ho boloka tile e tiile bakeng sa chebahalo e telele e felileng.
ha re phethela
Qetellong, HPMC e ntlafatsa li-adhesives tsa manyolo ka ho fana ka melemo e mengata, ho kenyelletsa ho boloka metsi, ho teteaneng, thepa ea rheological le matla a ntlafetseng a tlamo. Bokhoni ba HPMC ba ho ntlafatsa ts'ebetso, ho fokotsa nako ea ho omisa le ho thibela ho phatloha ha lithaele ho entse hore e be karolo ea bohlokoa ea indasteri ea lithaele. Tšebeliso ea HPMC ho nts'etsopele ea likhomaretsi tsa lithaele e ka ntlafatsa boleng ba sehlahisoa ha e ntse e fana ka litharollo tse tšoarellang, tse matla tsa bonding tse sebetsang joalo ka ha li khahleha. Melemo ena kaofela e paka hore HPMC ke polymer e fetolang papali 'marakeng o ntseng o eketseha oa sekhomaretsi sa lithaelese.
Nako ea poso: Jun-21-2023