Cellulose imakhala ndi zinthu zosiyanasiyana zomwe zimagwiritsidwa ntchito m'malo osiyanasiyana kuphatikiza ntchito yomanga, mankhwala opangira mankhwala ndi chakudya. Njira zopangira cellulose ether ndizovuta kwambiri, zimaphatikizapo masitepe angapo, ndipo pamafunika ukadaulo wambiri komanso zida zapadera. Munkhaniyi, tikambirana mwatsatanetsatane tsatanetsatane wopanga ma cellose eder.
Gawo loyamba mu cellulose yopanga ma celluuse ndikukonzekera zopangira. Zipangizo zopangira zomwe zimagwiritsidwa ntchito kupanga cellose eders nthawi zambiri zimachokera ku mitengo yamtengo ndikuwononga thonje. Mtengo wa nkhuni umasokonezedwa ndikuwunika zinyalala zazikulu zilizonse, pomwe zinyalala za thonje zimakonzedwa mu zamkati wabwino. Pulogalamuyo imachepetsedwa kukula ndi kupera kuti mupeze ufa wabwino. Wokongoletsa nkhuni ndi thonje zinyalala zimaphatikizidwa limodzi mogwirizana kutengera zomwe mukufuna pazomaliza.
Gawo lotsatira limaphatikizapo kukonza mankhwala othandizira osakanikirana. Pulogalamuyi imapangidwa koyamba ndi yankho la alkaline (nthawi zambiri sodium hydroxide) kuti muchepetse mawonekedwe a ma cellulose. Cellulose yomwe imachitika imathandizidwa ndi zosungunulira monga kaboni kaboni kaboni kaboni kaboni kaboni kaboni kaboni kaboni kaboni kaboni kaboni kateleose xanthate. Chithandizo ichi chimachitika m'matanki omwe akupitilira zamkati. Cellulose xanthate njira imathamangitsidwa kudzera mu chipangizo choposa mafilimu.
Pambuyo pake, mafilimu a Callose a Xanthase adasamba kuti asambe didukiti ya sulfuric acid. Izi zimadzetsa unyolo wa cellulose, ndikupanga ma virus apakati. Mafuta apakati omwe apangidwa kumene amasambitsidwa ndi madzi kuti achotse zosakhumudwitsa zomwe zisanachitike. Njira yolefukira imagwiritsa ntchito hydrogen peroxide kukweza ulusi wa cellulose, yomwe imatsukidwa ndi madzi ndikusiyidwa kuti ziume.
Mafuta a cellulose atawuma, amayang'aniridwa. Njira yobwezera imaphatikizapo kukhazikitsa magulu a ether, monga methyl, ma ethyl kapena hydroxyethyl magulu, m'magulu a cellulose. Njira imachitikira pogwiritsa ntchito chothandizira othandizira ndi acid acid pamaso pa zosungunulira. Zimachitika nthawi zambiri zimachitika pansi mosamala mikhalidwe yoyendetsedwa bwino ya kutentha ndi kukakamizidwa kuti muwonetsetse zokolola komanso zoyera.
Pakadali pano, ma cellulose anali ngati mawonekedwe oyera oyera. Chotsirizacho chimakhala choyeserera zingapo zowongolera kuti izi zitsimikizire kuti malonda omwe akufuna kuti agwirizane ndi zomwe amakonda, monga mafayilo, kuyera kwazinthu komanso chinyezi. Kenako imanyamulidwa ndikutumizidwa ku Wogwiritsa ntchito kumapeto.
Kuwerenga, kupanga ma cellulose ether ether akukonzekera kukonzekera kwa mankhwala, chithandizo chamankhwala, kupondaponda, kusungunuka komanso kusinthidwa, kutsatiridwa ndi kuyesedwa kwamphamvu. Njira yonse imafuna zida zamakono ndi chidziwitso cha zochita za mankhwala ndipo zimachitika moyang'aniridwa. Kupanga cellose celose ndi njira yovuta komanso yophukira, koma ndikofunikira m'mafakitale ambiri.
Post Nthawi: Jun-21-2023