Site na nyocha na nchịkọta nke nnwale nke ahụ na-eweta isi atọ ahụ, mkpebi bụ isi bụ ndị a:
5.1 Mmechi
1. Cellugul ether mpụ site na ihe ọkụkụ akụrụngwa
A tụrụ ihe mejupụtara ihe osisi osisi ise (mmiri, mma osisi, na ihe owuwu ihe ọkụkụ atọ, a họpụtara mkpụrụ osisi pine.
na Baggasse ka iwepụ cellulose, na usoro nke mmịpụta cellulose. N'okpuru ọnọdụ usoro kachasị mma, na
Ihe dị ọcha nke ligtocellose, celhe cellulose na akpa cellulose dị elu karịa 90%, ihe ha na-eme kwa karịa 40%.
(2) Site na nyocha nke ụdị infrared, enwere ike ịhụ ya na mgbe ọgwụgwọ, ngwaahịa cellulose si na ahịhịa ọka, Tasse na pane sawdust
Na 1510 cm-1 (ọkpụkpụ ọkpụkpụ nke akwa benzene) na gburugburu 1730 cm-1 (ịgbatị mkpọchi nke carbonyl c = o)
Enweghị ọnụ ọgụgụ dị elu, na-egosi na liminin na Hemicelllose na ngwaahịa ewepụtara a na-ewepụta, na cellulose nwere ịdị ọcha dị elu. site na odo odo
Enwere ike ịhụ ya site na ụdị mpụga na mpụga nke ikwu ihe dị iche iche nke ligning mbelata mgbe ọgwụgwọ ọ bụla gasịrị, yana ị na-etinye eriri cellulose na-ebelata.
Ihe nlereanya nwetara dị nso na oghere nke potassium na-egbu egbu, na-egosi na mkpụrụ cellose dị ọcha. site X
Nyocha x-ray dị iche na-egosi na a na-eji klọọkụ dị iche iche nke nwetara nke ọma nke ọma.
2. Nkwadebe nke Ether's
(1) A na-eji otu nnwale dị otu iji bulie Hunrystallization Alkali decrytalization usoro cellulose;
Emere nnwale nke Orthogonal na nnwale nke CMC, HEC na HECMC site na Pine osisi alkali sellose, n'otu n'otu.
njikarịcha. N'okpuru usoro nkwadebe kachasị mma, CMC na DS ruru 1.237, HEC na MS ruru 1.657.
na hecmc na ds nke 0.869. (2) Dị ka nyocha FTIR siri kwuo, ma e jiri ya tụnyere osisi cine mbụ, a na-etinye nke ọma na comcose ether cmc cmc.
N'ime celdigul eather hec, a na-ejikọ hydroxyetyl nke ọma; N'ime celdigul ether hicmc, a na-ejikọ hydroxyethyl nke ọma
Carboxymymylyl na hydroxye yedi.
(3) Enwere ike inweta ya site na H-NMR nyocha na otu Hydroxyethyl na HEC HEC, na HEC na-enweta site na usoro dị mfe.
ogo oke nke dochie.
(4) Dabere na nyocha nke XRD, ma e jiri ya tụnyere osisi cine celluse, The cell cmc, hec na hecmc nwere a
Crydị kristal dị iche iche gbanwere na ụdị cellulose nke Abụọ, na mkpu gburu nke Abụọ, kristal ahụ belatara nke ukwuu.
3. Ngwa nke cellulose eutta
(1) Njirimara nke ihe omimi nke Tastede mbụ: SMC, HEC na HECMC bụ mmiri pseudoplastic, na
Pseudoplastity nke eyers mkpụrụ osisi ahụ dị mma karịa nke SA, ma e jiri ya tụnyere nke SA, o nwere uru PVI dị ala, nke dabara adaba maka ibipụta ụkpụrụ dị mma.
Ifuru; Usoro nke mado nke pastede anọ a bụ: SA> HECMC> HEC; Mmiri na-egbochi ikike nke cmc pastede mbụ,
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Ndakọrịta nke urea na nke nnu dị ka SA, na nkwụsi ike nke cmc mbụ a dị mma karịa SA, mana
Ndakọrịta nke hec rawkee dị njọ karịa nke SA;
Ndakọrịta sodium bicarbonate dị njọ karịa SA;
Dike yiri nke ahụ, mana mmiri na-ejide ike, ndakọrịta na sodium bicarbonate na nchekwa nke hecmc rap tapawa dị ala karịa SA. (2) Mbipụta Mmezi nke Tapage: CMC na-apụta agba agba na ike, mmetụta obibi, ibipụta ngwa ngwa, wdg.
Na ihe nzuzo nke cmc dị mma karịa nke SA; Ngosipụta na-egosi na ọ na-enwe mmetụta nke hec yiri nke ahụ, mana ọdịdị nke hec dị mma karịa nke SA.
Olu agba, permeability na ngwa ngwa na-eme ka ọ dị ala karịa SA; Ọ na-adị mma obibi Hekmc, ngwa ngwa na-acha akwụkwọ ndụ yiri SA;
Ihe a na-ahụ anya mado dị elu karịa SA, mana mkpụrụ ụcha pụtara na nchekwa nke hecmc dị ala karịa SA.
Atụmatụ 5.2
Site na ntinye akwụkwọ nke 5.1 cellulose eth celte nwere ike inweta, cellulose ewer castet nwere ike iji rụọ ọrụ
Dye Ebipụta nke Aters, karịsịa anionic cellulose eyers. N'ihi iwebata nke hydrophilic otu hydrophilic otu carrophythyl, ndị otu isii
Ihe na-eme nke otu hydropo na mgbanaka, na ụgwọ na-adịghị mma mgbe ị nọsịrị n'otu oge, nwere ike ịkwalite mmiri nke ọgbụgba. Ma, na dum,
Ngwakọta ngwa nke celhulose ether na-ebipụta nke ọma, ọkachasị n'ihi ogo nke nbanye ma ọ bụ ihe mkpuchi nke cellugul ether.
N'ihi ogo nke nbanye, nkwadebe nke eyers cellulose nwere ogo dị elu ma ọ bụ akara ula di elu ma ọ bụ akara ngosi dị elu.
Oge post: Ọkt-08-2022