Ukusetyenziswa okuphambili kwe-hydroxypropyl methylcellulose

1. Yintoni eyona nto isetyenziswayo ye-hydroxypropyl methylcellulose (HPMC)?

I-HPMC isetyenziswa ngokubanzi kwizinto zokwakha, iingubo, ii-resin zokwenziwa, iiseramikhi, amayeza, ukutya, amalaphu, ezolimo, izithambiso, icuba kunye namanye amashishini.I-HPMC inokohlulwa ibe yibakala lokwakha, ibakala lokutya kunye nebakala lamayeza ngokwenjongo.Okwangoku, uninzi lweemveliso zasekhaya zikumgangatho wokwakha.Kwibakala lokwakha, i-putty powder isetyenziswe kwisixa esikhulu, malunga ne-90% isetyenziselwa i-putty powder, kwaye intsalela isetyenziselwa udaka lwesamente kunye neglue.

2. Kukho iintlobo ezininzi ze-hydroxypropyl methylcellulose (HPMC), kwaye yintoni umahluko ekusebenziseni kwabo?

HPMC inokohlulwa ibe uhlobo olukhawulezileyo kunye nohlobo eshushu-ukuchithwa.Imveliso yohlobo olukhawulezayo isasazeka ngokukhawuleza emanzini abandayo kwaye iyanyamalala emanzini.Ngeli xesha, ulwelo akukho viscosity kuba HPMC isasazwe kuphela emanzini ngaphandle ukunyibilika real.Malunga nemizuzu emi-2, i-viscosity yolwelo iyanda ngokuthe ngcembe, yenze i-colloid ebonakalayo ebonakalayo.Iimveliso ezincibilikisiweyo ezishushu, xa zidibene namanzi abandayo, ziyakwazi ukusasazeka ngokukhawuleza emanzini ashushu kwaye zinyamalale emanzini ashushu.Xa iqondo lobushushu lehla ukuya kwiqondo elithile lobushushu, i-viscosity iya kubonakala kancinane ide yenze i-colloid ebonakalayo ebonakalayo.Uhlobo lwe-hot-melt lunokusetyenziswa kuphela kwi-putty powder kunye nodaka.Kwiglue yolwelo kunye nepeyinti, kuya kubakho i-grouping phenomenon kwaye ayinakusetyenziswa.Uhlobo olukhawulezileyo lunoluhlu olubanzi lwezicelo.Ingasetyenziselwa kwi-putty powder kunye nodaka, kunye neglue yamanzi kunye nepeyinti, ngaphandle kokuchasana.

3. Ziziphi iindlela zokuchithwa kwe-hydroxypropyl methylcellulose (HPMC)?

Indlela yokuchithwa kwamanzi ashushu: Ekubeni i-HPMC inganyibiliki emanzini ashushu, i-HPMC inokusasazwa ngokulinganayo emanzini ashushu kwinqanaba lokuqala, kwaye emva koko inyibilike ngokukhawuleza xa ipholile.Iindlela ezimbini eziqhelekileyo zichazwa ngolu hlobo lulandelayo:

1) Beka umlinganiselo ofunekayo wamanzi ashushu kwisikhongozeli kwaye ufudumale ukuya kuma-70°C.I-hydroxypropyl methylcellulose yongezwa ngokuthe ngcembe phantsi kokuvuselela okucothayo, ekuqaleni i-HPMC yadada phezu kwamanzi, kwaye ngokuthe ngcembe yenze i-slurry, eyapholiswa phantsi kokuvuselela.

2), yongeza i-1/3 okanye i-2/3 yomthamo ofunekayo wamanzi kwisitya, kwaye ushushu ube ngu-70 ° C, usasaze i-HPMC ngokwendlela ye-1), kwaye ulungiselele udaka lwamanzi ashushu;uze udibanise umlinganiselo oseleyo wamanzi abandayo kwi-slurry yamanzi ashushu, umxube wapholiswa emva kokuvuselela.

Indlela yokuxuba umgubo: xuba i-HPMC yomgubo kunye nesixa esikhulu sezinye izinto ezinomgubo, xuba ngokucokisekileyo kunye nomxube, uze wongeze amanzi ukuze unyibilike, emva koko i-HPMC inokunyibilika ngeli xesha ngaphandle kokudityaniswa, kuba kukho i-HPMC encinci kuphela kuyo yonke into encinci. ikona Powder, iya kunyibilika ngokukhawuleza xa udibana namanzi.——Umgubo weputty kunye nabavelisi bodaka basebenzisa le ndlela.[I-Hydroxypropyl methylcellulose (HPMC) isetyenziswa njenge-thickener kunye ne-arhente yokugcina amanzi kwi-putty powder mortar.]

4. Indlela yokugweba umgangatho we-hydroxypropyl methylcellulose (HPMC) ngokulula kunye ne-intuitively?

(1) Ubumhlophe: Nangona ubumhlophe bungenakucacisa ukuba i-HPMC ilula ukuyisebenzisa, kwaye ukuba i-agent emhlophe yongezwa ngexesha lenkqubo yokuvelisa, iya kuchaphazela umgangatho wayo.Nangona kunjalo, uninzi lweemveliso ezilungileyo zinobumhlophe obuhle.

(2) Ukulunga: Ukulunga kwe-HPMC ngokubanzi kune-80 mesh kunye ne-100 mesh, kunye ne-120 mesh ingaphantsi.Uninzi lwe-HPMC eveliswe eHebei yi-80 mesh.Okukhona ukucoleka, xa sithetha ngokubanzi, kungcono.

(3) Ukuhanjiswa kokukhanya: faka i-hydroxypropyl methylcellulose (HPMC) emanzini ukwenza i-colloid ebonakalayo, kwaye ujonge ukukhanya kwayo.Okukhona ukuhanjiswa kokukhanya, kungcono, kubonisa ukuba kukho izinto ezinganyibilikiyo kangako kuyo..Ukungena kwereactors ezithe nkqo kulungile, kwaye oko kwereactors ezithe tyaba kubi kakhulu, kodwa ayithethi ukuba umgangatho wereactors eme nkqo ungcono kunowo wereactors othe tye, kwaye umgangatho wemveliso umiselwa yimiba emininzi.

(4) Umxhuzulane okhethekileyo: Okukhona umkhulu umxhuzulane othile, kokukhona unzima ngakumbi.Ubuncinci bukhulu, ngokuqhelekileyo ngenxa yokuba umxholo weqela le-hydroxypropyl kuwo uphezulu, kwaye umxholo weqela le-hydroxypropyl liphezulu, ukugcinwa kwamanzi kungcono.