Nibihe bikorwa bigize ibiryo bigize selile ya ether

Sobanura ：

Ibiryo birimoselile ethers

Umwanya wa tekiniki ：

Ubuvumbuzi bwa none bujyanye nibiryo birimo selile ya selile.

Ubuhanga bwibanze ：

Kuva kera bizwiho kwinjiza ethers ya selile mubigize ibiryo, cyane cyane ibiribwa bitunganijwe, kugirango bitezimbere imitungo itandukanye nko guhagarika ubukonje no / cyangwa imiterere, cyangwa kunoza gushikama mugihe cyo gukora, gutunganyirizwa imashini cyangwa gukaranze. Porogaramu y’Ubwongereza isaba GB 2 444 020 igaragaza ibiribwa bigizwe na selile idafite selile nka methylcellulose, hydroxypropyl selulose, cyangwa hydroxypropyl methylcellulose. Methylcellulose na hydroxypropyl methylcellulose bifite "thermos reversible gelling properties". Byasobanuwe byumwihariko ko iyo igisubizo cyamazi ya methylcellulose cyangwa hydroxypropyl methylcellulose gishyushye, itsinda rya hydrophobique methoxy iri muri molekile riba umwuma, hanyuma rikaba gele y'amazi. Ku rundi ruhande, iyo gel yavuyemo imaze gukonjeshwa, amatsinda ya hydrophobique ya mikorobe ya hydrophobique, aho gel igaruka kumuti wambere wamazi.

Patent yu Burayi EP I 171 471 igaragaza methylcellulose ifite akamaro kanini mubigize ibiryo bikomeye nk'imboga zikomeye, inyama, hamwe na soya kubera imbaraga za gel nyinshi. Methylcellulose itanga imbaraga hamwe no guhuriza hamwe ibiryo bikomeye, bityo bigatanga ibyokurya byiza kubaguzi barya ibiryo bitunganijwe. Iyo ushonga mumazi akonje (urugero, 5 ° C cyangwa munsi) mbere cyangwa nyuma yo kuvanga nibindi bintu bigize ibiryo, soya ya methylcellulose igera mubushobozi bwayo bwose kugirango itange ibiryo bikomeye bihamye kandi bihamye. ubushobozi.

Ariko rero, hamwe na hamwe, gukoresha amazi akonje ntibiborohera uwukora ibiribwa. Kubera iyo mpamvu, byaba byiza utanze selile ya selile itanga ibiryo bikomeye hamwe nubukomezi bwiza ndetse no guhuzagurika kabone niyo ether ya selile yashonga mumazi afite ubushyuhe bwicyumba.

Hydroxyalkyl methylcellulose nka hydroxypropyl methylcellulose (nayo izwiho kuba ingirakamaro mubigize ibiryo) izwiho kugira modulus nkeya ugereranije na methylcellulose. Hydroxyalkyl methylcellulose yerekana modulus nkeya ntabwo ikora gele ikomeye. Kwibanda cyane birakenewe kuri geles nkeya (Haque, A; Richardson; Morris, ER, Gidley, MJ na Caswell, DC muri Carbohydrate Polymers22 (1993) p.175; na Haque, A na Morris, ER1nCarbohydrate Polymers22 (1993) p.161).

Iyo hydroxyalkyl methylcellulose nka hydroxypropyl methylcellulose (yerekana ububiko buke bwo kubika) ishyirwa mubiribwa bikomeye, ubukana bwabo hamwe nubufatanye ntibuba hejuru bihagije kubisabwa bimwe.

Nibintu byavumbuwe muri iki gihe cyo gutanga hydroxyalkyl methylcellulose, cyane cyane hydroxypropyl methylcellulose, igereranywa na hydroxyalkyl methylcellulose izwi nka hydroxypropyl methylcellulose Ibinyuranye, ibihimbano bikomeye byibiribwa bitangwa hamwe no gukomera no / cyangwa guhuriza hamwe.

Ikintu cyatoranijwe muri iki gihe cyavumbuwe ni ugutanga hydroxyalkyl methylcellulose, cyane cyane hydroxypropyl methylcellulose, itanga ibiryo bihamye hamwe nubukomezi bwiza hamwe na / cyangwa guhuriza hamwe nubwo hydroxyalkyl methylcellulose Niko bimeze no gushonga mumazi afite ubushyuhe bwicyumba.

Igitangaje ni uko byagaragaye kohydroxyalkyl methylcellulose, cyane cyane hydroxypropyl methylcellulose, irashobora gukoreshwa mugutegura Ugereranije nibiryo bikomeye, ibiryo bizwi bizwi bifite ubukana bwinshi kandi / cyangwa guhuriza hamwe.

Igitangaje kandi, byagaragaye ko hydroxyalkyl methylcellulose, cyane cyane hydroxypropyl methylcellulose, idakenera gushonga mumazi akonje kugirango itange ibiribwa bikomeye hamwe no gukomera hamwe / cyangwa guhuriza hamwe.