Ukusetshenziswa kwe-cellulose ether odongeni putty kanye ne-putty

1. Uhlolojikelele lwe-cellulose ether

I-Cellulose ether iyikilasi lezinhlanganisela ze-polymer ezincibilika emanzini noma ezihlakazeka emanzini ezakhiwe ukuguqulwa kwamakhemikhali ngokusekelwe ku-cellulose yemvelo. Ama-cellulose ethers avamile ahlanganisa i-hydroxypropyl methylcellulose (HPMC), i-hydroxyethyl cellulose (HEC), i-hydroxypropyl cellulose (HPC), njll. Lawa ma-cellulose ethers anokuqina okuhle, ukugcinwa kwamanzi, ukuthambisa, ukwenza ifilimu nezinye izakhiwo, ngakho asetshenziswa kabanzi ekwakheni. izinto zokwakha.

2. Indima ye-cellulose ether ku-putty

Thuthukisa ukusebenza kokwakhiwa kwe-putty

I-Cellulose ether ithuthukisa izakhiwo ze-rheological ze-putty, ukuze ukusebenza nokulinganisa izakhiwo ze-putty kuthuthukiswe, okwenza kube lula ukusebenzisa kanye nezinga. Ikakhulukazi ekwakhiweni kwezinga elikhulu, indawo ejiyayo ye-cellulose ether ingenza i-putty ibambelele kangcono odongeni, inciphise ukuwohloka, futhi iqinisekise ukuzinza kwekhwalithi yokwakha.

Thuthukisa ukugcinwa kwamanzi

Isendlalelo se-putty sidinga ukugcina isimo esithile esimanzi phakathi nenqubo yokwakha ukuze kuqinisekiswe ukufana nokunamathela kwenqubo yokumisa elandelayo. Ama-molecule e-cellulose ether angakwazi ukumunca amanzi amaningi futhi akhe inethiwekhi ye-molecule yamanzi ku-putty, ehlisa izinga lokuhwamuka kwamanzi e-putty, ngaleyo ndlela athuthukise ngokuphawulekayo ukugcinwa kwamanzi kwe-putty. Lokhu kugcinwa kwamanzi kwenza i-putty ibe mancane amathuba okuqhekeka noma impushana uma yakhiwe ngaphansi kwezimo ezishisayo noma ezomile, ukwandisa isikhathi sokuvula ukwakhiwa nokuqinisekisa ikhwalithi ye-putty layer.

Thuthukisa amandla ebhondi

Ukwandisa okuqukethwe kwe-cellulose ether kungathuthukisa ukunamathela kwe-putty futhi kuqinisekise ukuthi i-putty inamathele ngokuqinile ebusweni besisekelo. Lapho i-putty isetshenziswa, i-cellulose ether ayikwazi nje ukuthuthukisa ukuqina kwe-putty, kodwa futhi inikeze izinga elithile lokunamathela phakathi nenqubo yokumisa ukuvimbela ungqimba lwe-putty ukuba liwe noma lugoqe. Lokhu kubaluleke kakhulu ezindaweni ezibushelelezi nezisekelo ezingamuncwa ngoba i-cellulose ether inikeza izici ezengeziwe zokunamathela.

Lawula isivinini sokumisa

I-Cellulose ether ingakwazi ukulungisa ijubane lokumisa le-putty ukuze ungqimba lwe-putty lome ngokulinganayo, ngaleyo ndlela luvimbele ngokuphumelelayo ukuqhekeka okubangelwa ukulahlekelwa kwamanzi ngokushesha phezulu. Ukwakhiwa kwe-putty enezingqimba eziningi, isivinini sokumisa esifanele sibaluleke kakhulu, esiza ukuqinisekisa ukunamathela phakathi kwezingqimba kanye nomphumela jikelele.

Thuthukisa ukusebenza kwe-anti-sagging

Ezindongeni eziqondile noma ophahleni, i-putty ithinteka kalula amandla adonsela phansi futhi inezinkinga zokuhlehla nokuhlehla. Umphumela wokujiya we-cellulose ether ungathuthukisa ngempumelelo i-viscosity nokuzinza kwe-putty, uvimbele ukwaziswa ukuthi ungasheleli ngenxa yamandla adonsela phansi, futhi uqinisekise ukusatshalaliswa okufanayo kwe-putty.

3. Izinhlobo eziyinhloko nokukhethwa kwama-cellulose ethers

Izinhlobo ezahlukene ze-cellulose ethers zinemiphumela ehlukene ku-putty, futhi kubaluleke kakhulu ukukhetha uhlobo olulungile lwe-cellulose ether. Okulandelayo ama-cellulose ethers amaningana avame ukusetshenziswa kanye nezici zawo:

IHydroxypropyl methylcellulose (HPMC): Inokuqina okuhle, ukugcinwa kwamanzi kanye nezakhiwo zefilimu futhi isetshenziswa kakhulu ekwakheni i-putty. I-HPMC ingathuthukisa kakhulu ukwakhiwa kanye nezakhiwo zefilimu ze-putty, yenze i-putty ibe bushelelezi uma isetshenziswa, futhi ithuthukise ukunamathela nokushelela kwe-putty.

I-Hydroxyethyl cellulose (HEC): Isetshenziswa kakhulu ezinhlelweni ezisekelwe emanzini, inamandla amahle okulawula ukujiya kanye ne-rheology, futhi ivame ukusetshenziswa ku-putty yangaphakathi yodonga kanye nezingubo ezisekelwe emanzini. I-HEC inomphumela obalulekile wokuthuthuka ekulevelini kwe-putty, kodwa ukugcinwa kwayo kwamanzi kungaphansi kancane kune-HPMC.

I-Hydroxypropyl cellulose (HPC): I-HPC ine-viscosity ephezulu kanye nokuzinza okuhle kakhulu, futhi ilungele izikhathi ezinezidingo eziphakeme zokulwa nokusaga. Ukwengeza inani elifanele le-HPC ku-putty kungathuthukisa kakhulu ukusebenza kwe-anti-sagging namandla e-putty.

4. Izinzuzo zohlelo lokusebenza namathemba emakethe ama-cellulose ethers

Izinzuzo zokusetshenziswa kwama-cellulose ethers ku-putty zibalulekile, ziboniswa ikakhulukazi kulezi zici ezilandelayo:

Ukonga izindleko: Ama-cellulose ether angathuthukisa ngempumelelo ukusebenza kwe-putty, anciphise inani lokusebenza kabusha, futhi ngaleyo ndlela anciphise izindleko zempahla nezabasebenzi.

Ukuvikelwa kwemvelo: Ama-cellulose ethers ayizinto zemvelo ezenziwe ngezinsiza ezivuselelekayo, ezinokuvikelwa kwemvelo okuhle, ezingenabo ubuthi emzimbeni womuntu, futhi zisiza ukuhlangabezana nezidingo zezinto zokwakha zesimanje zokuvikela imvelo eluhlaza.

Ukuzivumelanisa nezimo zezulu ezihlukahlukene: Ukugcinwa kwamanzi kanye nokumelana nokuqhekeka kwama-cellulose ethers kuwenza afaneleke ukwakhiwa ngaphansi kwezimo zezulu ezihlukene, ukuhlangabezana nezidingo zezindawo zokwakha ezihlukene ezifana nenyakatho eyomile kanye neningizimu enomswakama.

Amathemba amahle emakethe: Ngokuthuthukiswa kwezakhiwo eziluhlaza kanye nesidingo esandayo sezinto zokwakha ezisebenza kahle kakhulu, isidingo semakethe sama-cellulose ethers njengezithasiselo ezibalulekile siye sanyuka unyaka nonyaka. Ikakhulukazi embonini yokuhlobisa, izidingo zodonga oluthambile nobuhle bendawo ziye zathuthukiswa, okuye kwandise indawo yokuthuthukiswa kwemikhiqizo ye-putty. I-cellulose ether njengesilungisi sizoba namathemba amakhulu wohlelo lokusebenza.