Ukusetyenziswa kwe-hydroxypropyl methylcellulose HPMC

1. Yintoni eyona njongo ye-hydroxypropyl methyl cellulose (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 lezonyango ngokwenjongo yalo.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 iindidi ezininzi ze-hydroxypropyl methyl cellulose (HPMC).Uthini umahluko phakathi kokusetyenziswa kwazo?

HPMC inokohlulwa ibe uhlobo ngoko nangoko kunye nohlobo hot-nyibilika.Iimveliso zohlobo olukhawulezayo zihlakazwa ngokukhawuleza emanzini abandayo kwaye zinyamalale emanzini.Ngeli xesha, i-liquid ayinayo i-viscosity, kuba i-HPMC ihlakazekile kuphela emanzini ngaphandle kokuchithwa kwangempela.Malunga nemizuzu emi-2, i-viscosity ye-liquid yanda ngokuthe ngcembe, yenza i-colloid ebonakalayo ebonakalayo.Imveliso eshushu-encibilikayo, xa idibana namanzi abandayo, inokusasazeka ngokukhawuleza emanzini ashushu kwaye ilahleke emanzini ashushu.Xa amaqondo obushushu ehla ukuya kwiqondo elithile lobushushu, i-viscosity ibonakala kancinane de i-viscous colloid ecacileyo yenziwe.Uhlobo lwe-hot-melt lunokusetyenziswa kuphela kwi-putty powder kunye nodaka.Kwiglue yolwelo kunye nepeyinti, i-clumping iyenzeka kwaye ayinakusetyenziswa.Uhlobo olukhawulezileyo lunoluhlu olubanzi lwezicelo.Ingasetyenziswa kwi-putty powder kunye nodaka, kunye nakwiglue elulwelo kunye nepeyinti.Akukho contraindication.

3. Ziziphi iindlela zokuchithwa kwe-hydroxypropyl methylcellulose HPMC?

Indlela yokuchithwa kwamanzi ashushu: Ekubeni i-HPMC ayinyibiliki emanzini ashushu, i-HPMC inokuchithwa ngokufanayo emanzini ashushu kwinqanaba lokuqala, kwaye ngokukhawuleza ichithe ngexesha lokupholisa.Iindlela ezimbini eziqhelekileyo zichazwa ngolu hlobo lulandelayo:

1).Yongeza i-1/3 okanye i-2/3 yomlinganiselo ofunekayo wamanzi kwisikhongozeli kwaye uyifudumeze ukuya kuma-70°C.ukusasaza i-HPMC ukulungiselela udaka lwamanzi ashushu;uze ungeze inani eliseleyo lamanzi abandayo kumanzi ashushu Kwi-slurry, pholisa umxube emva kokuvuselela.

Indlela yokuxuba umgubo: Xuba i-HPMC yomgubo kunye nenani elikhulu lezinye izinto zomgubo, xuba ngokucokisekileyo kunye ne-blender, uze udibanise amanzi ukuze unyibilike, emva koko i-HPMC inokunyibilika ngeli xesha ngaphandle kwe-clumping kunye ne-agglomerating, ngenxa yokuba ikona nganye encinci, kukho into encinci. ye-HPMC Umgubo uya kuchithwa ngokukhawuleza xa udibana namanzi.-I-putty powder kunye nabavelisi bodaka basebenzisa le ndlela.[I-Hydroxypropyl methyl cellulose (HPMC) isetyenziswa njenge-thickener kunye ne-agent egcina amanzi kwi-putty powder mortar.

Beka umlinganiselo ofunekayo wamanzi ashushu kwisikhongozeli kwaye ufudumale ukuya kuma-70°C.Ngokuthe ngcembe yongeza i-hydroxypropyl methylcellulose ngokushukumisa kancinane, qalisa i-HPMC edadayo phezu kwamanzi, kwaye ngokuthe ngcembe wenze i-slurry, kwaye upholise uludaka ngokushukumisa.