01. Selelekela sa cellulose
Cellulosese ke polysacchar ea polysacchar e entsoe ka glucose. E sa khathatse ka metsing le li-solric tsa khale. Ke karolo ea mantlha ea lerako la semela, 'me hape e leng se ajoang ka ho fetesisa le ho feta sa Polysaccharide e ngata ka tlhaho.
Cllulose ha e na mohloli o moholo ka ho fetisisa lefatšeng ka ho fetisisa lefatšeng, 'me ke eena ea nang le polymer ea tlhaho e nang le poloko e kholo ka ho fetisisa ea ho bokella. E na le melemo ea ho nchafatsoa, e entsoe hantle - biocompatication e ntle.
02. Mabaka a ho fetola cellulose
Magrolesecule Macrolesecules li na le palo e kholo ea lihlopha tsa Bow. Ka lebaka la phello ea litlamo tsa hydrogen, matla a pakeng tsa Macrolecule a maholo, a tla qhibiliha haholo △ H; Ka lehlakoreng le leng, ho na le masapo a matšoao a masapo a callloulose. Joalo ka sebopeho, seriti sa ketane ea molek'hule se kgoma, se tla lebisa ho phetoho e nyane ea entropy e fihlang. Mabaka ana a mabeli a etsa hore mocheso oa molten (= △ H / △ s) o tla ba holimo le mocheso oa Cellulose o tlase. Ka hona, ha Cleloulose e futhumetse mocheso o itseng, likhoele tse tla hlakoloa pele li qala ho hlepha mokhoa oa ho qhibiliha ebe oa bopa.
03. Bohlokoa ba Tekanyetso ea Cellulose
Ka ho leka-lekaneng ho bonolo ho feta mathata a khale a pepere, nts'etsopele le ts'ebeliso ea thepa e chesang ea tlhaho eo batho ba e elang hloko. Celluloselese ke sesebelisoa se seholo ka ho fetisisa sa tlhaho ka tlhaho. E na le thepa e ntle joalo ka bohloeki, e leng katleho e matla ea moea, e leng bophelo bo botle, e leng ho ba le mokhoa o bonolo, ho ba le boitšoaro bo bonolo le bokhabane. E na le litšobotsi tse ke keng tsa bapisoa le likhoele tsa lik'hemik'hale. .
Limok'hule tsa limolek'hule tsa cellulose li na le palo e kholo ea lihlopha tsa hydroyl, tse leng bonolo ho theha litlamo tse phahameng tsa hydrolecar le tse ling tsa ho qhibiliha. Leha ho le joalo, selefounubity e na le boikemisetso bo botle, 'me tlamo ea eona ea thibelo ea' mele e ka senngoa ka liphetoho tsa lik'hemik'hale kapa karabelo tse ka tlase. Ha lihlahisoa tse fapaneng tsa indasteri, e sebelisoa haholo ka maselalemone, karohano ea kelello, polasetiki, koae le makhapetla.
04. Phetoho ea lisebelisoa tsa celloulose ether
Cellulose Ether ke mofuta oa mofuta oa celluulose o fumanoang ke pherekano ea chelete ea tšepe. E sebelisoa haholo ka lebaka la tono ea eona e ntle, emussions, e emiseloang, thetsi ea lifilimi, e sirelletsang ea colloid, le thepa ea mongobo le thepa ea mongobo. E sebelisoang lijong, meriana, ho etsa pampiri, ho etsa pampiri, ho penta, lisebelisoa tsa ho haha, jj.
Ho hlahisoa hore narbulase e hlahisitsoe ke letoto la lits'ila tse hlahisitsoeng ke karabelo ea lihlopha tsa hydroularl lijana tsa li-alleg tsa celdroulable li-agents tsa alkylation tlasa maemo a alkina. Tšebeliso ea lihlopha tsa hydroxy e fokotsa palo ea maqhubu a marang-rang a hydrogen, ka tsela e ts'oanang a ntlafatsa ts'ebetso e futhumetseng ea thepa, 'me ka nako e ts'oanang fokotsa ntlha e qhalanehileng ea cellulose ea selefounu.
Mehlala ea litlamorao tsa phetoho ea evarge ho mesebetsi e meng ea cellulose:
Ha e sebelisa k'hothone e hloekisitsoeng e le lingoliloeng tsa mantlha, bafuputsi ba ne ba sebelisa ts'ebetso e thata ea carboxypropypropypropity le letsoai. Sebelisa ts'ebetso ea lisebelisoa tsa tšepe e le 'ngoe, carboxyMethyl hydroxxproPyLLl cellulose e na le letsoai le letle la letsoai, ho hanyetsa asiti ea asiti le atining. Ka ho fetola likhahla tse lekanang tsa proplene oxide ea axide le chloaacetic acid Liphetho tsa liteko li bontša hore carboxymethyl hydroxxpropyl cellulose e hlahisitsoeng ke letsoai le tlase, 'me sehlahisoa se tlase se khahlehang le ho hanyetsa hantle.
05. Profict ea phetoho ea lisebelisoa tsa cellulo
Cllloulose ke thepa ea bohlokoa ea lik'hemik'hale e nang le thepa e ngata e ruileng, e tala le tikoloho le tikoloho. Phetoho ea phetoho ea lilulu e nang le cellulose ether Le litlhoko tsa nts'etsopele ea sechaba, li hatela pele ka mokhoa o tsoelang pele, haeba lisebelisoa tsa maiketsetso li ka sebelisoa ka nepo le ho hlokomela likarolo tse ngata . Boleng
Poso: Feb-20-2023