Hydroxypropyl Methyl Cellulose waa la khamiiray

Hydroxypropyl methylcellulose waxaa loo isticmaalaa sida alaabta ceeriin si loo soo saaro saliid, kaas oo dhamaystiri kara isticmaalka sonkorta, hagaajinta heerka isticmaalka ee alaabta ceeriin, la yareeyo qadarka haraaga substrate ee maraq halsano, la yareeyo kharashka daaweynta biyaha wasakhda ah, iyo samaynta formula sifo. of hydroxypropyl methylcellulose faa'iido leh Waa faa'iido u leh hagaajinta dufcaddii, dufcaddii iyo hababka halsano ee joogtada ah, ka hortagga khalkhalgelinta unugyada iyo dhibaatooyinka la xiriira dhaqanka milanka;sidoo kale faa'iido u leh wax ka qabashada hababka halsano.

Hydroxypropyl methylcellulose, cellulose ceeriin, waa la safayn karaa suuf, ama waxay noqon kartaa saxarka alwaax.Waxay u baahan tahay in la miiro ka hor ama inta lagu jiro alkalization.Waxaa lagama maarmaan ah in la burburiyo alaabta ceeriin ee cellulose tamar farsamo si loo yareeyo kristalinity iyo polymerization degree, kordhiyo aagga ay korkiisa, ka dibna hagaajin heerka trihydroxyl iyo awoodda falcelinta kiimikada falcelin on giraanta gulukooska ee polymer cellulose ah.

Inkasta oo isku-dhafka hydroxypropyl methylcellulose uusan ahayn mid adag, alkali, alaabta ceeriin waa la miiray oo alkalized.Etherification, soo kabashada dareeraha, kala-soocidda centrifugal, dhaqidda iyo qalajinta ee deegaanno kala duwan, laakiin waxay ku lug leedahay tignoolajiyada muhiimka ah iyo aqoonta hodanka ah.Noocyada kala duwan ee alaabooyinka, deegaan kastaa wuxuu leeyahay xaaladaha ugu dambeeyay ee xakamaynta, sida heerkulka, wakhtiga, cadaadiska iyo xakamaynta socodka tas-hiilaadka kaalmada iyo qalabka xakamaynta ayaa ah dammaanadda tayada badeecada deggan, nidaamka wax soo saarka ee lagu kalsoonaan karo, iyo wanaagsan.

Maaddaama waxqabadka hydroxypropyl methylcellulose uu la mid yahay kan ethers-ka kale ee biyaha-milmi kara, waxaa loo isticmaali karaa sida wakiilka filim-samaynta, dhumucdiisuna, emulsifier iyo stabilizer ee rinji cinjir ah iyo halabuurka daahan biyo-milmi leh, caabbinta abrasion, daahan Uniform iyo adhesion, iyo kacsanaanta dusha sare leh, xasilloonida asiidhyada iyo saldhigyada, iyo waafaqsanaanta midabada macdan.Hydroxypropyl methylcellulose waxay leedahay saameyn wanaagsan sida dhumuc weyn oo loogu talagalay rinjiga polyvinyl acetate ee biyaha ku salaysan.Heerka beddelka etherka cellulose waa la wanaajiyey, caabbinta bakteeriyada ayaa sidoo kale la wanaajiyey.