Cellulose anainers zvinhu zvakasiyana zvinoshandiswa mune dzakasiyana-siyana maindasitiri kusanganisira kuvaka, mishonga uye chikafu. Maitiro ekugadzira mheremalose ether akaomarara, anosanganisira matanho mazhinji, uye anoda hunyanzvi hwakawanda uye nhungamiro dzakakosha. Munyaya ino, tichakurukura zvakadzama maitiro ekugadzira mheremalose ana vana.
Nhanho yekutanga mu cellulose ether yekugadzira maitiro ndiko kugadzirira kwezvinhu zvisina kugadzirwa. Izvo zvinhu zvakagadzirwa zvinoshandiswa kuburitsa cellulose etiners kazhinji zvinobva kubva kune huni durp uye marara machira. Iyo huni yemapuranga inobviswa uye yakaongororwa kuti ibvise chero marara marara, nepo marara ekotoni anogadziriswa mupepu yakanaka. Iyo pulp inobva yaderedzwa muhukuru nekukuya kuti uwane hupfu hwakanaka. Powred Wood Pulp uye marara machira anobva abatanidzwa pamwe chete mune chaiyo huwandu hunoenderana nezvinodiwa zvigadzirwa zvechigadzirwa chekupedzisira.
Nhanho inotevera inosanganisira kugadzirwa kwemakemikari kweiyo yakasanganiswa yekupa chikafu. Iyo pulp inotanga kurapwa neAlkaline Solution (kazhinji sodium hydroxide) kuputsa chimiro chechidimbu chemheremalose. Iyo inokonzeresa cellulose inozobatwa neiyo solvent yakadai se carbon kukurudzira kuti igadzire cellulose Xanthate. Uku kurapwa kunoitwa mumatangi neicho chinowanikwa chourp. Iyo cellulose xanthatene mhinduro inobva yabuda kuburikidza neyekupedzisira mudziyo kuumba mafirita.
Mushure meizvozvo, iyo cellulose leanthate filenti yaive spun mune yekugezera ine dilute sulfutic acid. Izvi zvinoguma nekuumbwa kweCellulose ngetani ngetani, kuumba cellulose machira. Iyo ichangobva kuumbwa cellulose machira anobva ashambwa nemvura kuti abvise chero kusvibiswa kusati kwasungwa. Maitiro ekujekesa anoshandisa hydrogen peroxide kuchenesa iyo cellulose machira, iyo yakabva yashambwa nemvura uye yasara kuti iome.
Mushure mekunge maCellulose mafambiro akaomeswa, ivo vanokwanisa kunzi eriraifitization. Maitiro ekutsvaga anosanganisira kusuma kwemapoka e-ether, akadai methyl, ethyl kana mapoka ehydroxethyl, kuita cellulose machira. Nzira yacho inoitwa uchishandisa maitiro eiyo erthitification mumiririri uye iyo acid yekugadzira pamberi peiyo solvent. Maitiro anowanzoitwa pasi pemamiriro ezvinhu akanyatso kudzorwa ekudziya uye kumanikidzwa kuve nechokwadi chekubereka chigadzirwa uye kuchena.
Panguva ino, iyo cellulose ether yaive muchimiro che chena poda. Chigadzirwa chakapera chinobva chave kuiswa munhevedzo yemhando yekudzora kwekutonga kuve nechokwadi kuti chigadzirwa chinosangana nezvinodiwa uye zvakatemwa, zvakadai se viscosity, kuchena kwechigadzirwa uye zvinyoro-nyoro. Izvo zvinobva zvarongedzwa uye kutumirwa kumushandisi wekupedzisira.
Kuti upedze, iyo yekugadzira maitiro e cellulose ether inosanganisira kugadzirira kwemakemikari, kurapwa kwemakemikari, kupururudza, kusviba uye kuteverwa nekuedzwa kwemhando yekudzora. Iyo yese maitiro inoda zvishandiso zvine hunyanzvi uye ruzivo rwemakemikari maitiro uye zvinoitwa pasi pemamiriro ezvinhu akanyatsorodzana. Kugadzira cellulose ana vanayo maitiro akaomarara uye ekutadza-nguva, asi zvakakosha mune maindasitiri akawanda.
Tumira nguva: Jun-21-2023