Mumatope akaoma, cellulose ether ndiyo inonyanya kuwedzera iyo inogona kuvandudza zvakanyanya kushanda kwedhaka rakanyorova uye inokanganisa kushanda kwekuvaka kwedhaka.Methyl cellulose ether inoita basa rekuchengetedza mvura, kukora, uye kuvandudzwa kwekuita kwekuvaka.Kuita kwakanaka kwekuchengetedza mvura kunovimbisa kuti dhaka harizokonzeri jecha, upfu uye kuderedzwa kwesimba nekuda kwekushomeka kwemvura uye isina kukwana simende hydration;thickening effect Simba rekuumbwa kwedhaka rakanyorova rinowedzera zvakanyanya, uye kuwedzerwa kwemethyl cellulose ether kunogona kuvandudza zvakanyanya kunyorova kwemvura yedhaka rakanyorova, uye ine kunamatira kwakanaka kune akasiyana-siyana substrates, nokudaro kuvandudza kushanda kwedhaka rakanyorova pamadziro. uye kuderedza tsvina;kuwedzera, zvakasiyana Basa re cellulose mune zvigadzirwa zvakare rakasiyana, semuenzaniso: cellulose mumatairi adhesives inogona kuwedzera nguva yekuvhura uye kugadzirisa nguva;cellulose mumakanika yekupfapfaidza dhaka inogona kuvandudza simba rechimiro chedhaka rakanyorova;mukuzvienzanisa, cellulose inobata basa mukudzivirira kugara, Kupatsanura uye stratification.
Kugadzirwa kwe cellulose ether kunonyanya kugadzirwa neakasikwa fibers kuburikidza nealkali dissolution, grafting reaction (etherification), kugeza, kuomesa, kugaya uye mamwe maitiro.Iyo huru yakasvibirira yemafuta echisikigo inogona kukamurwa kuva: fiber fiber, cedar fiber, beech fiber, etc. Dhigirii yavo yepolymerization yakasiyana, iyo inokanganisa viscosity yekupedzisira yezvigadzirwa zvavo.Parizvino, vagadziri vakuru vecellulose vanoshandisa fiber yekotoni (yakagadzirwa neiyo nitrocellulose) sechinhu chikuru mbishi.Cellulose ethers inogona kukamurwa kuita ionic uye isiri-ionic.Iyo ionic mhando inonyanya kusanganisira carboxymethyl cellulose munyu, uye iyo isiri-ionic mhando inonyanya kusanganisira methyl cellulose, methyl hydroxyethyl (propyl) cellulose, uye hydroxyethyl cellulose.Su uye zvichingodaro.Muvhu rakaoma dhaka, nekuti ionic cellulose (carboxymethyl cellulose munyu) haina kugadzikana muhupo hwe calcium ions, haiwanzo shandiswa muzvigadzirwa zvehupfu yakaoma senge simende slaked lime semasimende zvinhu.
Kuchengetwa kwemvura kwe cellulose kunoenderanawo nekupisa kunoshandiswa.Kuchengetwa kwemvura kwemethyl cellulose ether kunodzikira nekuwedzera kwekushisa.Semuenzaniso, muzhizha, kana kune chiedza chezuva, kunze kwemadziro putty yakashongedzwa, iyo inowanzo mhanyisa kupora simende nedhaka.Iko kuoma uye kuderera kwehuwandu hwekuchengetedza mvura kunotungamirira kune kunzwa kuri pachena kuti zvose zviri zviviri kushanda kwekuvaka uye anti-cracking performance zvinokanganiswa.Muchiitiko ichi, zvinonyanya kukosha kuderedza kushandiswa kwezvinhu zvekushisa.Dzimwe nguva haigone kusangana nezvinodiwa zvekushandisa.Kumwe marapirwo kunoitwa pa cellulose, sekuwedzera dhigirii re etherification, nezvimwewo, kuitira kuti mvura yekuchengeta mhedzisiro inogona kuramba ichiita zvirinani pane tembiricha yepamusoro.
Kuchengetwa kwemvura ye cellulose: Zvinhu zvikuru zvinokanganisa kuchengetwa kwemvura yedhaka zvinosanganisira huwandu hweselulosi yakawedzerwa, viscosity ye cellulose, kunaka kweselulosi, uye tembiricha yenzvimbo inoshanda.
Viscosity ye cellulose: Kazhinji kutaura, kukwirisa viscosity, kunowedzera kunaka kwekuchengetedza mvura, asi iyo yakakwira viscosity, kukwira kwema molecular huremu hwe cellulose, uye kuderera kunoenderana mukunyungudika kwayo, izvo zvinokanganisa maitiro ekuvaka. uye simba revhu .Iyo yakakwirira viscosity, iyo inonyanya kuoneka iyo thickening maitiro padhaka, asi haina kuenzana zvakananga.Iyo yakakwirira iyo viscosity, iyo yakanyanya viscous iyo dhaka rakanyorova richava.Panguva yekuvaka, iyo inonamatira kune scraper uye ine yakakwirira kunamatira kune substrate, asi hazvizobatsiri zvakanyanya kuwedzera simba remaitiro emvura yakanyorova pachayo, uye iyo anti-sag performance haizove pachena panguva yekuvaka.
Kunaka kwe cellulose: Kunaka kunokanganisa kunyungudika kwe cellulose ether.Coarse cellulose inowanzoita granular uye nyore nyore kupararira mumvura pasina agglomeration, asi chiyero chekunyungudika chinononoka.Hazvina kukodzera kushandiswa muvhu rakaoma dhaka.Mumba inogadzirwa Imwe ye cellulose inobhururuka, haisi nyore kuparadzira uye kunyungudika mumvura, uye zviri nyore kuita agglomerate.Upfu hwakatsetseka chete hunogona kudzivirira methyl cellulose ether agglomeration kana uchiwedzera mvura nekubvongodza.Asi iyo yakakora cellulose ether haingoparadzi chete asiwo inoderedza kusimba kwenzvimbo yedhaka.Kana dhaka rakaoma rakadaro rinovakwa munzvimbo yakakura, kukurumidza kuporesa kwedhaka remunharaunda kunoderedzwa, uye kutsemuka nekuda kwekusiyana kwekurapa nguva kunooneka.Nekuda kwenguva pfupi yekusanganisa, dhaka rine mekiniki yekuvaka inoda yakakwirira kunaka.
Nguva yekutumira: Feb-13-2023