Qhov sib txawv tseem ceeb ntawm hydrogel thiab hydrocolloid yog hydrogel tsis yaj hauv dej, hos hydrocolloid tsim cov gel thaum sib xyaw nrog dej.
Hydrogel yog ib qho crosslinked hydrophilic polymer uas tsis tuaj yeem yaj hauv dej. Hydrocolloid yog ib yam khoom uas tsim cov gel hauv dej.
Hydrogel yog dab tsi?
Hydrogel yog ib qho crosslinked hydrophilic polymer uas tsis tuaj yeem yaj hauv dej. Txawm hais tias hydrogels yog absorbent heev, cov ntaub ntawv no kuj zoo li yuav tswj tau tus qauv zoo. Peb tuaj yeem npaj cov ntaub ntawv no siv cov polymers sib txawv uas tuaj yeem yog ntuj lossis hluavtaws. Ntawm lawv, cov khoom siv ntuj tsim rau hydrogel suav nrog hyaluronic acid, chitosan, heparin, alginate, thiab fibrin, thaum cov khoom siv hluavtaws muaj xws li polyvinyl cawv, polyethylene glycol, sodium polyacrylate, acrylate polymers thiab lawv copolymer.
Daim duab 01: Gelatin yog Hom Hydrogel
Muaj ntau qhov sib txawv ntawm kev siv hydrogel: kev tsim cov lo ntsiab muag, scaffolds hauv cov ntaub so ntswg engineering, muaj txiaj ntsig zoo rau cov kab lis kev cai ntawm tes, ua cov khoom siv tshuaj, muaj txiaj ntsig zoo li biosensors, tsim cov ntaub so ntswg pov tseg, dej gel explosives, mis cog, thiab lwm yam.
Hydrocolloid yog dab tsi?
Hydrocolloid yog ib yam khoom uas tsim cov gel hauv dej. Peb feem ntau siv cov khoom siv no ua ib qho hnav khaub ncaws hydrocolloid, uas yog ib qho opaque lossis pob tshab hnav khaub ncaws rau qhov txhab. Cov khaub ncaws hnav no yog biodegradable, breathable thiab tuaj yeem ua raws li daim tawv nqaij, uas ua kom ntseeg tau tias tsis tas yuav tsum muaj kev sib cais.
Hydrocolloid yog lub kaw lus colloid, qhov twg cov colloid hais yog hydrophilic polymer cov ntaub ntawv uas tau tawg hauv dej. Muaj cov khoom colloids uas kis thoob plaws hauv dej, thiab cov ntsiab lus ntawm colloid yog nyob ntawm seb muaj pes tsawg tus dej muaj tshwm sim nyob rau hauv ntau theem xws li gel lossis sol. Tsis tas li ntawd, hydrocolloid tuaj yeem thim rov qab lossis hloov tsis tau. Piv txwv li, agar yog ib qho reversible hydrocolloid vim tias nws tuaj yeem muaj nyob rau hauv gel thiab solid-state, uas tuaj yeem hloov pauv ntawm theem thaum tshem tawm cov cua sov.
Feem ntau, feem ntau hydrocolloids tsim los ntawm cov khoom ntuj polysaccharide. Piv txwv li, agar-agar sib tov, gelatin khoom qab zib, xanthan gum, Arabic cov pos hniav, guar gum, locust taum pos hniav, cellulose derivatives, thiab lwm yam, yog cov ntaub ntawv ntawm hydrocolloids.
Qhov txawv ntawm Hydrogel thiab Hydrocolloid yog dab tsi?
Hydrogel yog ib qho crosslinked hydrophilic polymer uas tsis tuaj yeem yaj hauv dej. Hydrocolloid yog ib yam khoom uas tsim cov gel hauv dej. Yog li, qhov sib txawv tseem ceeb ntawm hydrogel thiab hydrocolloid yog hydrogel tsis yaj hauv dej, thaum hydrocolloid tsim cov gel thaum sib xyaw nrog dej. Ntxiv mus, hydrogels muaj nyob rau hauv ib nrab (gel) theem, thaum hydrocolloid tshuaj feem ntau yog cov khib nyiab uas tuaj yeem tsim cov gel thaum sib xyaw nrog dej.
Hydrogel yog siv rau hauv kev tsim cov tshuaj tiv thaiv lo ntsiab muag, scaffolds hauv cov ntaub so ntswg engineering, rau cov kab lis kev cai ntawm tes, ua cov khoom siv tshuaj, ua biosensors, hauv kev tsim cov ntaub qhwv, dej gel explosives, mis cog, thiab lwm yam. Hydrocolloid, on lwm yam, yog siv los ua kom cov khoom noj sib xws, txhim kho cov nyhuv gelling, tswj cov dej noo, kev ntxhib los mos, tsw, thiab txee lub neej, thiab lwm yam. Hydrogels tuaj yeem yog los ntawm tej yam ntuj tso los yog hluavtaws; natural sources muaj xws li hyaluronic acid, chitosan, heparin, alginate, thiab fibrin. Lub caij no, cov khoom siv hluavtaws muaj xws li polyvinyl cawv, polyethylene glycol, sodium polyacrylate, acrylate polymers thiab copolymer ntawm no. Ntawm qhov tod tes, hydrocolloids feem ntau yog muab los ntawm ntuj polysaccharides xws li agar-agar sib tov, gelatin khoom qab zib, xanthan pos hniav, Arabic cov pos hniav, guar gum, locust taum gum, cellulose derivatives, thiab lwm yam.
Cov lus hauv qab no qhia txog qhov sib txawv ntawm hydrogel thiab hydrocolloid.
Summary – Hydrogel vs Hydrocolloid
Hydrogel yog ib qho crosslinked hydrophilic polymer uas tsis tuaj yeem yaj hauv dej. Hydrocolloid yog ib yam khoom uas tsim cov gel hauv dej. Qhov sib txawv tseem ceeb ntawm hydrogel thiab hydrocolloid yog tias hydrogel tsis yaj hauv dej, hos hydrocolloid tsim cov gel thaum sib xyaw nrog dej.
