Imiphumela yokuhlolwa kwe-Cellulose Ether

Ngokuhlaziywa kanye nokufingqwa kwe-cellulose ether test kuphumela kwizahluko ezintathu, iziphetho eziphambili zimi ngalendlela elandelayo:

5.1 Isiphetho

1. Cellulose ethenr Ukukhishwa kusuka ezintweni ezisetshenziswayo zezitshalo

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kanye neBagasse ukukhipha i-cellulose, futhi inqubo yokukhishwa kwe-cellulose yenziwe kahle. Ngaphansi kwezimo zenqubo ezenziwe kahle,

Ukuhlanzeka okuhlobene kweLignocellulose, ukolweni utshani we-cellululose kanye ne-bagasse cellulose kwakungaphezulu kwama-90%, futhi sekuvele izivuno zazo zonke ezingama-40%.

(2) kusuka ekuhlaziyweni kwesibonisi se-infrared, kungabonakala ukuthi ngemuva kokwelashwa, imikhiqizo ye-cellulose ekhishwe utshani kakolweni, i-bagasse kanye ne-pine sawdust

Ngo-1510 cm-1 (ukudlidliza kwamathambo kwendandatho ye-benzene) naku-1730 cm cm - 1

Kwakungekho iziqongo, okubonisa ukuthi i-lignin ne-hemishellulose emkhiqizweni okhishwe ngokuyisisekelo yasuswa ngokuyisisekelo, futhi i-cellulose etholakele yaba nobumsulwa obuphezulu. onsomi

Kungabonakala kusuka ku-spectrum yangaphandle yokumunca okuqukethwe okuhlobene ne-lignin kuncipha ngokuqhubekayo ngemuva kwesinyathelo ngasinye sokwelashwa, kanye nokutholwa kwe-UV ye-cellulose etholakele kuyancipha.

Ijika elitholakele liseduze ne-ultraviolet amuncy spectlople spectral ijika le-blank potassium permanganate, ekhombisa ukuthi i-cellulose etholakele yayimsulwa. ngo-x

Ukuhlaziywa kwe-X-RAY Ukuhlaziywa kwakhombisa ukuthi i-Crystallity ye-Relstallity yomkhiqizo otholwe yathuthukiswa kakhulu.

2. Ukulungiselela izitha ze-cellulose

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Ukuhlolwa kwe-orthogonal kanye nokuhlolwa kwe-single-factor kwenziwa lapho kulungiswa i-CMC, i-HEC kanye ne-HECMC kusuka ku-Pine Wood Alkali Cellulose, ngokulandelana.

ukusebenza kahle. Ngaphansi kwezinqubo zokulungiswa kahle ezifanele, i-CMC ene-DS kuze kufike ku-1.237, i-HEC ene-MS kuze kufike ku-1.657.

kanye ne-HECMC nge-DS ka-0.869. (2) Ngokusho kokuhlaziywa kwe-FTIR, uma kuqhathaniswa ne-Pine Pine Wood Cellulose, i-carboxymethyl ifakwe ngempumelelo ku-cellulose ether cmc.

E-cellulose ether hec, iqembu le-hydroxyethyl lixhunywe ngempumelelo; E-cellulose ether hecmc, iqembu le-hydroxyethyl lixhunywe ngempumelelo

I-Carboxymethyl namaqembu we-hydroxyethyl.

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i-molar degree yokufaka esikhundleni.

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Amafomu we-crystal wonke aguqulwe abe yi-cellulose uhlobo II, futhi i-crystallity yancipha kakhulu.

3. Ukusetshenziswa kwe-cellulose ether paste

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I-pseudoplallicity yalezi zinto ezintathu ze-cellulose ingcono kunaleyo kaNingizimu Afrika, futhi iqhathaniswa ne-SA, inenani eliphansi le-PVI, elilungele kakhulu ukuphrinta amaphethini amahle.

Imbali; Ukuhleleka kwesilinganiso sokuhlekisa kwama-paste amane yi: SA> CMC> HECMC> HEC; Amanzi aphethe umthamo we-CMC Original Aste,

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Ukuhambisana kwe-urea kanye nosawoti okulwa namabala kufana ne-SA, kanye nokuqina kwesitoreji kwe-CMC Original paste kungcono kune-SA, kodwa

Ukuhambisana kwe-HEC eluhlaza unamathisela kubi ukwedlula ku-SA;

Ukuhambisana nokuqina kwesitoreji kwe-sodium bicarbonate kubi kuneNingizimu;

I-SA iyafana, kepha amanzi abambe umthamo, ukuhambisana ne-sodium bicarbonate nokuqina kwesitoreji kwe-HeecMc eluhlaza unamathisela kuphansi kune-SA. .

Futhi izinga elisumnene le-CMC lingcono kunaleso laseNingizimu Afrika; Izinga lokuzwakala nokuphrinta okuzwakalayo kwe-HEC kufana ne-SA, kepha ukubukeka kwe-HEC kungcono kunaleyo kaNingizimu Afrika.

Umbala wevolumu, ukuvumela kanye nokushesha kombala ukuhlikihla kungaphansi kune-SA; Ukuphrinta kweHecmc kuzwakala, ukushesha kombala ukuhlikihla kuyafana neNingizimu Afrika;

Isilinganiso sokunameka siphakeme kune-SA, kepha isivuno sombala esibonakalayo kanye nokuqina kwesitoreji kweHecmc kuphansi kune-SA.

5.2 Izincomo

Kusuka kumphumela wohlelo lokusebenza lwe-5.1 cellulose ether pate kungatholakala, i-cellulose ether pate ingasetshenziswa ekusebenzeni

I-Dye yokuphrinta u-pastes, ikakhulukazi izithambiso ze-anionic cellulose. Ngenxa yokwethulwa kwe-hydrophilic group carboxymetyl yeqembu, ama-six-ilingane

Ukuvuselelwa kwemvume ye-hydroxyl ye-Priment ku-Ring, futhi inkokhiso engemihle ngemuva kwe-ionization ngasikhathi sinye, ingakhuthaza ukudaya imicu ngodayi osebenzayo. Kodwa-ke, kukho konke,

Umphumela wohlelo lokusebenza lwe-cellulose ether ukuphrinta ukunamathisela akukuhle kakhulu, ikakhulukazi ngenxa yezinga lokufaka esikhundleni noma isikhundla sokufakwa esikhundleni se-molar of cellulose ether.

Ngenxa yezinga eliphansi lokufaka esikhundleni, ukulungiswa kwe-cellulose izithathekisa nge-degree ephezulu noma degree ephezulu ye-molar efakwayo kudinga ukutadisha okwengeziwe.