Focus on Cellulose ethers

Ngaba uyayazi i-hydroxypropyl methylcellulose?

IHydroxypropyl methylcellulose isetyenziswa kakhulu kushishino lokwakha.Namhlanje, ndiza kwazisa indlela yokuchithwa kwe-hydroxypropyl methylcellulose kunye nendlela yokugweba umgangatho we-hydroxypropyl methylcellulose.

Indlela yokunyibilikisa i-hydroxypropyl methylcellulose:

Zonke iimodeli zingongezwa kwizinto eziphathekayo ngokuxuba okomileyo;

Xa kufuneka yongezwe ngokuthe ngqo kwisisombululo se-aqueous yobushushu obuqhelekileyo, kungcono ukusebenzisa uhlobo lokusasazwa kwamanzi abandayo, kwaye lunokuqina ngaphakathi kwemizuzu eyi-10-90 emva kokongeza;

Emva kokuphazamisa kunye nokusabalalisa ngamanzi ashushu kuhlobo oluqhelekileyo, yongeza amanzi abandayo kwaye ugxobhoze ukuze uchithe;

Ukuba kukho i-agglomeration kunye ne-coating ngexesha lokuchithwa, kubangelwa ukuvuselela okunganeleyo okanye ukongezwa ngokuthe ngqo kwamanzi abandayo kwiiprofayili eziqhelekileyo.Ngeli xesha, kufuneka ixutywe ngokukhawuleza;

Ukuba ama-bubbles aveliswa ngexesha lokuchithwa, banokushiywa ukuba bame iiyure ezingama-2-12 (zinqunywe ngokuhambelana nesisombululo) okanye zisuswe ngokukhutshwa, ukunyanzeliswa, njl., kunye nemali efanelekileyo ye-defoamer nayo inokongezwa.

Ungawugweba njani umgangatho we-hydroxypropyl methylcellulose ngokulula nangokucacileyo

Ubumhlophe: Ngokobumhlophe, akunakwenzeka ukugqiba ukuba i-HPMC ingasetyenziswa ngokuqhelekileyo, kwaye ukuba ii-agent ezimhlophe zongezwa kwinkqubo yokuvelisa, iya kuchaphazela nomgangatho wayo.Nangona kunjalo, iimveliso ezinobumhlophe obuhle zilungile.

Ukulunga: I-HPMC iqhelekile yi-80 mesh, i-100 mesh, i-120 mesh, i-finere icolile ingcono.

Ugqithiso: faka i-HPMC emanzini ukwenza i-colloid ecacileyo, kwaye ijonge ukuhanjiswa kwayo.Okukhona ukuhanjiswa okukhulu, kokukhona kuncinci okunganyibilikiyo emanzini.Ngokubanzi, ugqithiso lungcono kwiireactors ezithe nkqo nakwireactors ezithe tyaba.Kubi kakhulu kwi-reactor ethe nkqo, kodwa ayinakucacisa ukuba umgangatho wemveliso eveliswe yi-reactor ethe nkqo ungcono kunowo wereactor ethe tye.

Ubunzima obuthile: Ngokuqhelekileyo, ngenxa yomxholo ophezulu we-hydroxypropyl, umphumo wokugcina amanzi ulungile.


Ixesha lokuposa: Nov-17-2022
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