I-Hydroxypropyl methylcellulose, ekwaziwa ngokuba yi-HPMC, yi-nonionic cellulose ether efumaneka kwikotoni ecociweyo, izinto ze-polymer zendalo, ngokusebenzisa uthotho lweenkqubo zeekhemikhali. Yipowder emhlophe okanye etyheli kancinci enyibilikayo lula emanzini. Masithethe ngendlela yokunyibilikisa i-hydroxypropyl methylcellulose.
1. I-Hydroxypropyl methylcellulose isetyenziswa kakhulu njengesongezelelo kwi-putty powder, mortar kunye neglue. Xa idityaniswe kwi-samente mortar, ingasetyenziswa njenge-arhente yokugcina amanzi kunye ne-retardant yokwandisa ukufuthwa; xa idityaniswe kwi-putty powder kunye neglue, ingasetyenziswa njenge-binder. Ukuze kuphuculwe ukusasazeka kunye nokwandisa ixesha lokusebenza, sithatha i-Qinngquan Cellulose njengomzekelo ukuchaza indlela yokunyibilikisa i-hydroxypropyl methylcellulose.
2. I-hydroxypropyl methylcellulose eqhelekileyo ixutywa kuqala ize isasazwe ngamanzi ashushu, emva koko yongezwe ngamanzi abandayo, ixutywe ize ipholiswe ukuze inyibilike;
Ngokukodwa: thabatha i-1/5-1/3 yamanzi ashushu afunekayo, uvuselele de imveliso eyongeziweyo idumbe ngokupheleleyo, uze wongeze inxalenye eseleyo yamanzi ashushu, enokuba ngamanzi abandayo okanye amanzi abandayo, uze uvuselele kubushushu obufanelekileyo (10°C) ude unyibilike ngokupheleleyo.
3. Indlela yokumanzisa isinyibilikisi sendalo:
Gxobhoza i-hydroxypropyl methylcellulose kwi-organic solvent okanye uyithambise nge-organic solvent, uze wongeze okanye wongeze amanzi abandayo ukuze uyinyibilikise kakuhle. I-organic solvent ingaba yi-ethanol, i-ethylene glycol, njl.
4. Ukuba ukuhlanganiswa okanye ukusonga kwenzeka ngexesha lokunyibilika, kungenxa yokuba ukuxuba akwanelanga okanye imodeli eqhelekileyo yongezwa ngqo emanzini abandayo. Ngeli xesha, xuba ngokukhawuleza.
5. Ukuba amaqamza enziwa ngexesha lokunyibilika, angashiywa iiyure ezi-2-12 (ixesha elithile lixhomekeke ekuqineni kwesisombululo) okanye asuswe ngokutshiza nge-vacuum, ngokucinezela, njl.njl., okanye ngokongeza isixa esifanelekileyo se-agent yokuxovula.
Ukulumkela
I-hydroxypropyl methylcellulose yahlulwe yaba ziintlobo ezinyibilikayo kancinci kunye neentlobo ezinyibilikayo ngoko nangoko. I-hydroxypropyl methylcellulose ekhawulezileyo inokunyibilikiswa ngqo emanzini abandayo.
Ixesha lokuthumela: Feb-06-2024