Yeyiphi imisebenzi yokwakheka kokutya kwe-cellulose ether?

Dbhala:

Ukwakhiwa kokutya okubandakanya ii-ether ze-cellulose

Tintsimi yezobugcisa:

Ukwenziwa kwangoku kunxulumene nokwakheka kokutya okuqulethe i-cellulose ethers.

Ubuchule bokungasemva:

Kudala yaziwa ngokubandakanya i-cellulose ethers kwiziqulatho zokutya, ngakumbi ukwakheka kokutya okucutshungulweyo, ukuphucula iipropathi ezahlukeneyo ezifana nokuzinza kwe-freeze-nyibilikityho kunye/okanye ukuthungwa, okanye ukuphucula ukuqina ngexesha lokwenziwa, ukusetyenzwa ngoomatshini okanye ukuqhotyiswa.Isicelo selungelo elilodwa lomenzi waseBritani i-GB 2 444 020 idiza ukwakheka kokutya okunjalo okubandakanya i-nonionic cellulose ether efana ne-methylcellulose, i-hydroxypropyl cellulose, okanye i-hydroxypropyl methylcellulose.I-Methylcellulose kunye ne-hydroxypropyl methylcellulose zine "thermos reversible gelling properties".Kuchazwa ngokuthe ngqo ukuba xa isisombululo se-aqueous se-methylcellulose okanye i-hydroxypropyl methylcellulose sishushu, iqela le-hydrophobic methoxy elibekwe kwi-molecule liphuma emanzini, kwaye liba yi-gel enamanzi.Ngakolunye uhlangothi, xa i-gel ephumayo ipholile, amaqela e-hydrophobic methoxy abuyiselwa emanzini, apho ijeli ibuyela kwisisombululo sokuqala samanzi.

I-European Patent EP I-171 471 idiza i-methylcellulose eluncedo kakhulu ekuhlanganiseni ukutya okuqinileyo njengemifuno eqinileyo, inyama, kunye neepatties zesoya ngenxa yokonyuka kwamandla ejeli.I-methylcellulose inikezela ukuqina okuphuculweyo kunye nobumbano ekubunjweni kokutya okuqinileyo, ngaloo ndlela ibonelela ngemvakalelo elungileyo yokuluma kubathengi abatya ukubunjwa kokutya okucutshungulweyo.Xa uchithwa emanzini abandayo (umzekelo, i-5 ° C okanye ephantsi) ngaphambi okanye emva kokudibanisa nezinye izithako zokubunjwa kokutya, i-soy methylcellulose ifikelela kumandla apheleleyo okubonelela ngeengqungquthela zokutya okuqinileyo kunye nokuqina okulungileyo kunye nokubambisana.isakhono.

Nangona kunjalo, kwezinye iimeko, ukusetyenziswa kwamanzi abandayo akulula kumvelisi wokubunjwa kokutya.Ngokufanelekileyo, kuya kuba yinto enqwenelekayo ukubonelela ngee-cellulose ethers ezibonelela ngokwakhiwa kokutya okuqinileyo kunye nobunzima obuhle kunye nokubambisana naxa i-cellulose ethers inyibilika emanzini amalunga nobushushu begumbi.

IHydroxyalkyl methylcellulose efana ne-hydroxypropyl methylcellulose (ekwaziwa ngokuba luncedo ekuhlanganiseni ukutya) yaziwa ngokuba nemodyuli ephantsi yokugcina xa kuthelekiswa ne-methylcellulose.I-Hydroxyalkyl methylcelluloses ebonisa imodyuli yokugcina ephantsi ayenzi iijeli ezinamandla.Ugxininiso oluphezulu lufunekayo nakwiigels ezibuthathaka (iHaque, A; Richardson; Morris, ER, Gidley, MJ kunye neCaswell, DC kwiCarbohydrate Polymers22 (1993) p.175; kunye noHaque, A noMorris, ER1nCarbohydrate Polymers22 (1993) p. 161).

Xa i-hydroxyalkyl methylcelluloses efana ne-hydroxypropyl methylcellulose (ebonisa imodyuli yokugcina ephantsi) ifakwe kwiingqungquthela zokutya okuqinileyo, ukuqina kwazo kunye nokubambisana akuphezulu ngokwaneleyo kwezinye izicelo.

Yinto yokwenziwa kwangoku ukubonelela nge-hydroxyalkyl methylcellulose, ngakumbi i-hydroxypropyl methylcellulose, efaniswa ne-hydroxyalkyl methylcelluloses eyaziwayo, njenge-hydroxypropyl methylcellulose Ngokwahlukileyo, ukubunjwa kokutya okuqinileyo kubonelelwa ngokuqiniswa okuphuculweyo kunye / okanye ukubambisana.

Into ekhethwayo yokwenziwa kwangoku kukubonelela nge-hydroxyalkyl methylcellulose, ngakumbi i-hydroxypropyl methylcellulose, enika ukwakheka kokutya okuqinileyo kunye nokuqina okulungileyo kunye / okanye ukudibanisa naxa i-hydroxyalkyl methylcellulose Kuyafana xa inyibilika emanzini aneqondo lokushisa kwegumbi.

Okumangalisayo kukuba, kuye kwafunyaniswa ukuba i-hydroxyalkyl methylcellulose, ngakumbi i-hydroxypropyl methylcellulose, ingasetyenziselwa ukulungiswa xa kuthelekiswa nokuqulunqwa kokutya okuqinileyo, ukwakheka kokutya okuqinileyo okwaziwayo kunobunzima obuphezulu kunye / okanye ukudibanisa.

Kwakhona ngokumangalisayo, kuye kwafunyaniswa ukuba i-hydroxyalkyl methylcelluloses, ngakumbi i-hydroxypropyl methylcellulose, ayifuni ukuchithwa emanzini abandayo ukubonelela ngeengoma zokutya okuqinileyo kunye nokuqina okulungileyo kunye / okanye ukudibanisa.