Indlela elula yokuchonga i-hydroxypropyl methylcellulose

I-Cellulose isetyenziswa kakhulu kwi-petrochemical, amayeza, ukwenza amaphepha, izinto zokuthambisa, izixhobo zokwakha, njl. Sisongezelelo esisebenziseka lula kakhulu, kwaye ukusetyenziswa okwahlukeneyo kuneemfuno ezahlukeneyo zokusebenza kwiimveliso ze-cellulose.

Eli nqaku lizazisa kakhulu indlela yokusetyenziswa kunye nokuchonga umgangatho we-HPMC (hydroxypropyl methylcellulose ether), uhlobo lwe-cellulose olusetyenziswa kakhulu kwi-putty powder eqhelekileyo.

I-HPMC isebenzisa umqhaphu ocoliweyo njengezinto eziphambili zokwenza imveliso. Isebenza kakuhle, ixabiso liphezulu kwaye inokumelana ne-alkali. Ifanelekile kwi-putty eqhelekileyo engangeni manzi kunye nodaka lwe-polymer olwenziwe ngesamente, i-calcium yelayimu kunye nezinye izinto ezinamandla ze-alkaline. Uluhlu lwe-viscosity yi-40,000-200000S.

Nazi iindlela ezahlukeneyo zokuvavanya umgangatho we-hydroxypropyl methylcellulose ezichazwe nguXiaobian. Yiza ufunde ngeXiaobian~

1. Ubumhlophe:

Kakade ke, into ebalulekileyo ekumiseleni umgangatho we-hydroxypropyl methylcellulose ayinakuba bubumhlophe nje kuphela. Abanye abavelisi baya kongeza izinto zokwenza mhlophe kwinkqubo yemveliso, kule meko, umgangatho awunakugwetywa, kodwa ubumhlophe be-hydroxypropyl methylcellulose ekumgangatho ophezulu bulungile ngokwenene.

2. Ubuhle:

I-hydroxypropyl methylcellulose idla ngokuba nobukhulu obuyi-80 mesh, i-100 mesh kunye ne-120 mesh. Ubukhulu bezinto ezincinci bulungile kakhulu, kwaye ukunyibilika kunye nokugcinwa kwamanzi nako kulungile. Le yi-hydroxypropyl methylcellulose ekumgangatho ophezulu.

3. Ukuhanjiswa kokukhanya:

Faka i-hydroxypropyl methylcellulose emanzini uze uyinyibilikise emanzini kangangexesha elithile ukuze ujonge i-viscosity kunye nokucaca kwayo. Emva kokuba ijeli yenziwe, jonga indlela edlulisa ngayo ukukhanya, kokukhona idlulisa ukukhanya ngcono, kokukhona i-insolved matter kunye nobunyulu bayo buphezulu.

4. Ubunzima obuthile:

Okukhona ubukhulu bomxhuzulane othile bukhula, kokukhona kungcono, kuba okukhona ubunzima bomxhuzulane othile bukhula, kokukhona umxholo we-hydroxypropyl methyl kuyo uphezulu, kokukhona ukugcinwa kwamanzi kuphucuka.