Yini izincazelo ze-fiber, cellulose, kanye ne-cellulose ether futhi yini umehluko?

I-putty powder yakhiwa ngokuyinhloko izinto ezenziwe ngefilimu (izinto zokubopha), ama-filler, ama-ejenti agcina amanzi, ama-polycat, i-talex ether, njll. ngoyedwa.

I-Fibre:

I-Fibre (US: I-fiber; isiNgisi: i-fiber) ibhekisa entweni ehlanganiswe ama-filaments aqhubekayo noma anqabile. Njengefayibha yesitshalo, izinwele zezilwane, i-silk fiber, i-fiber zokwenziwa, njll.

Cellulose:

I-Cellulose yi-macromoleculate polysaccharide ehlanganiswe i-glucose futhi iyingxenye esemqoka yodonga lweseli lwesitshalo. Emazingeni okushisa ekamelo, iselula ayincibilika emanzini noma ezinhlamvwini ezijwayelekile ze-organic. Ukuqukethwe kwe-cellulose kokotini kusondele ku-100%, okwenza kube ngumthombo wemvelo omnandi kakhulu we-cellulose. Ngokhuni olujwayelekile, ama-akhawunti we-cellulose ama-40-50%, futhi kukhona i-10-30% ehunyushellulose ne-20-30%.

Umehluko phakathi kwe-cellulose (kwesokudla) kanye nesitashi (kwesobunxele):

Ngokuvamile, bobabili isitashi kanye ne-cellulose bangama-macromolecular polysaccharides, futhi ifomula yamangqamuzana ingavezwa njenge (c6h10o5) n. Isisindo se-molecular se-cellulose sikhulu kunaleso esitashi, kanti amaselula angabola ukukhiqiza isitashi. I-cellulose yi-D-glucose kanye nama-β-1,4 glycoside ama-polysaccharides ahlanganiswe ama-bond, ngenkathi isitashi senziwa ngamabhondi we-α-1,4 glycosidic. I-cellulose ngokuvamile ayinakiwe, kepha isitashi ifakwe ngamabhondi angama-1,6 glycosic. I-cellulose ayincibiliki kabi emanzini, kanti isitashi sencibilika emanzini ashisayo. I-cellulose ayinandaba ku-amylase futhi ayiphendukeli okwesibhakabhaka lapho kuvezwa i-iodine.

I-Cellulose Ether:

Igama lesiNgisi le-cellulose ether liyi-cellulose ether, okuyingxenye ye-polymer ngesakhiwo se-ether eyenziwe nge-cellulose. Kungumkhiqizo wokusabela kwamakhemikhali we-cellulose (isitshalo) nge-ejenti yokungena. Ngokwehlukaniswa Kwamakhemikhali Sokuhlukaniswa Kwamakhemikhali Ngemuva kokuthembela, kungahlukaniswa kuba abathakathi be-anionic, i-cationic kanye ne-anion. Kuya nge-ejenti yokusheshisa okusetshenzisiwe, kunama-mettyl cellulose, i-hydroxyswethyl methyl cellulose, i-cardboxyprosel cellulose, i-hydroxyprosel cellulose, i-hydroxylylll thrulose, i-hydroxylllll yllulose, i-hydroxyllllls, i-hyzOxyllllls, i-cardylyllllyl ydroxyethyl cellulose, pernylylyl hydroxyethyl cellulose, Phenylylyl perdroxyethyl cellulose, Phenylylyl hydroxyethyl cellulose, pernylyl I-Cellulose, njll. Embonini yezokwakha, i-cellulose ether ibizwa nangokuthi i-cellulose, okuyigama elihambisanayo, futhi libizwa ngokuthi yi-cellulose (noma i-ether) kahle.

Indlela yokuqina ye-cellulose ether nyorer:

Abakhudlwana abakhulu be-cellulose abakhudlwana bangama-onic omkhulu akhula ikakhulukazi nge-hydration kanye nokubanjwa phakathi kwama-molecule.

I-polymer chain of cellulose ether kulula ukwakha ibhondi ye-hydrogen ngamanzi emanzini, futhi isibopho se-hydrogen senza kube ne-hydration ephezulu kanye nokufakwa kwamanye ama-molecular.

Lapho i-cellulose ether likhula ingeziwe kupende we-latex, ithatha inani elikhulu lamanzi, okwenza ivolumu yalo yokwandisa kakhulu, ukunciphisa isikhala samahhala semibala, ama-filler kanye nezinhlayiya ze-latex;

Ngasikhathi sinye, amaketanga ama-cellulose ether ama-molecular ahlanganiswe ukwakha isakhiwo senethiwekhi enezici ezintathu, kanye nemibala, ama-filler kanye nezinhlayiya ze-latex zizungezwe phakathi kwe-mesh futhi azikwazi ukugeleza ngokukhululeka.

Ngaphansi kwale miphumela emibili, ukubonakala kohlelo kuyathuthuka! Uthole umphumela wokuqina esiwudingayo!