Ni ubuhe buryo bwa hydroxyproppopyl methyl selile na hydroxyAythyl selile?

1.RydroxyPropyl Methyl Cellulose

Hydroxypropyl methylcellseNubwoko butandukanye bwa selile Ibisohoka no kurya biriyongera vuba. Nibintu bitari uonic bivanze ether bikozwe mu ipamba inoze nyuma ya alkaliation, ukoresheje ibyatsi bya proplene na methyl chloride nkabakozi bashya, binyuze mu ruhererekane. Urwego rwo gusimbuza ni 1.2 ~ 2.0. Imitungo yayo iratandukanye bitewe na memoti yibirimo kuri hydroxyProppopyle.

. Ariko ubushyuhe bwa pelale mumazi ashyushye burenze ivya methyl selile. Kudakemura mumazi akonje nabyo birateye imbere cyane ugereranije na methyl selile.

(2). Ubushyuhe bugira ingaruka kandi ku rubyiruko, uko ubushyuhe bwiyongera, vicosity igabanuka. Ariko, ingaruka za viscosity, ubushyuhe buri munsi ya methyl selile. Igisubizo cyacyo kirahagaze mugihe kibitswe mubushyuhe bwicyumba.

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. Amazi ya Caustic Soda namazi ntabwo afite ingaruka nke kubikorwa byayo, ariko alkali irashobora kwihutisha igipimo cyimiseke yacyo kandi yongera urujijo. HydroxyPropyl Methylcellse irahamye muminyuhuri isanzwe, ariko iyo kwibanda ku gisubizo cyumunyu hejuru, viscogity ya hydroxyPropyl methylcellse igisubizo gikunda kwiyongera.

. Nka Polyvinyl Inzoga, ibikatsi bya Ether, gum yimboga, nibindi

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2. HydroxyEthyyl selile

Ikozwe muri pamba yatunganijwe yavuwe na Alkali, kandi yifatanije na Ethylene okiside ya Ethyne nkumukozi wa hantu hataha imbere ya ISOPROPOL. Impamyabumenyi yacyo muri rusange 1.5 ~ 2.0. Ifite hydrofilire ikomeye kandi biroroshye gukuramo ubushuhe.

(1) Hydroxyyethyll selile irashonje mumazi akonje, ariko biragoye gusesa mumazi ashyushye. Igisubizo cyacyo kirahamye ku bushyuhe burebure nta na umwelle. Irashobora gukoreshwa igihe kirekire munsi yubushyuhe bwo hejuru muri minisiteri, ariko kugumana amazi biri hasi kurenza ibya methyl selile.

(2)Hydroxyyeryl selileihamye na aside rusange na alkali, kandi alkali irashobora kwihutisha iseswa ryayo kandi ryongera ubushyuhe. Gutagira nabi mumazi birababaje gato kurenza ibya Methyl Celllease na HydroxyPropyl Methyl Cellulose.

(3) Hydroxyyethyl selile ifite imikorere myiza yo kurwanya minisiteri, ariko ifite igihe kirekire cyo kuditana.

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. Ku bushyuhe bugera kuri 40 ° C, Lowew irashobora kubaho mugihe cyiminsi 3 kugeza 5, bizagira ingaruka kumikorere yayo.