Wararka
-
Waa maxay sababta ether-ka cellulose si weyn loogu isticmaalo ka-faa'iideystayaasha daawada?
Maaddooyinka dawooyinka lagu kariyo ayaa ah dawooyinka iyo waxyaalaha lagu daro ee loo isticmaalo soo saarista dawooyinka iyo dawooyinka, waana qayb muhiim ah oo ka mid ah diyaarinta dawooyinka.Maaddaama polymer-ka dabiiciga ah laga soo saaray, ether cellulose waa biodegradable, aan sun ahayn, iyo raqiis ah, sida sodium carboxymethyl cellu ...Akhri wax dheeraad ah -
Ma ogtahay wax ku saabsan geedka hydroxypropyl methylcellulose kaabsoosha jilicsan iyo warshadeeda kolloid?
Waqtigan xaadirka ah, alaabta ceeriin ee bislaaday ee kaabsoosha dhirta ayaa u badan hydroxypropyl methylcellulose (HPMC) iyo pullulan, iyo istaarijka hydroxypropyl sidoo kale waxaa loo isticmaalaa sida alaabta ceeriin.Tan iyo bilowgii 2010-meeyadii, HPMC waxaa lagu dabaqay warshadda wax soo saarka kaabsoosha ee Shiinaha, oo ku saleysan...Akhri wax dheeraad ah -
Ma garanaysaa waxqabadka hydroxypropyl methylcellulose?
Hydroxypropyl methylcellulose waa nooc ka mid ah cellulose aan ionic ahayn oo isku qasan.Si ka duwan ionic methyl carboxymethyl cellulose ether qasan, kuma falceliso biraha culus.Sababtoo ah saamiga kala duwan ee maadada methoxyl iyo ka kooban hydroxypropyl ee hydroxypropyl methylcellulose iyo viscos kala duwan...Akhri wax dheeraad ah -
Sidee bay urta hydroxypropyl methylcellulose u saamaysaa tayada?
Waa maxay saamaynta cabbirka urta ee hydroxypropyl methylcellulose: Synthesis of hydroxypropyl methylcellulose: Ku daawee cellulose suuf la safeeyey oo leh lye at 35-40 ° C nus saac, riix, burburin cellulose, iyo da'da si habboon 35 ° C, si celceliska heerka polymerization ee la helay ...Akhri wax dheeraad ah -
Waa maxay faa'iidooyinka isticmaalka hydroxypropyl methylcellulose kaabsal godan?
Alaabtani waa 2-hydroxypropyl ether methyl cellulose, taas oo ah wax soo saarka semi-synthetic.Waxaa lagu soo saari karaa laba hab: (1) Ka dib marka lagu daweeyo suufka suufka ah ama fiilooyinka saxarka alwaax leh soodhaha caustic, waxaa lagu qasaa chloromethane iyo epoxy Propane falcelin, la safeeyey oo la miiray si loo helo;(2)...Akhri wax dheeraad ah -
Qalabkee ka soo jeeda dhirta ayaa ku habboon soo saarista kaabsal adag oo godan?
Taariikhda qarniga jir ah ee kaabsoosha, jelatin ayaa had iyo jeer sii xajistay booskeeda sida walxaha kaabsal ee caadiga ah sababtoo ah ilo kala duwan oo kala duwan, sifooyinka jireed iyo kiimikaad deggan, iyo wax qabad heer sare ah.Iyada oo ay korodhay doorbidka dadku u qabaan kaabsoosha, hollo...Akhri wax dheeraad ah -
Sidee Hypromellose (HPMC) loogu isticmaalaa kiniiniyada matrix-ka sii-daynta dheer?
Warshadaha dawooyinka, hypromellose (HPMC, METHOCEL ™) waxaa loo isticmaali karaa buuxinta, binder, polymer dahaarka kiniiniga iyo kacsiga muhiimka ah si loo xakameeyo sii deynta daroogada.Hypromellose waxaa loo isticmaali jiray kiniinnada in ka badan 60 sano waana qayb muhiim ah oo si weyn loogu isticmaalo kiniinnada matrixka gel hydrophilic.Qaar badan oo...Akhri wax dheeraad ah -
Waa maxay codsiga hydroxypropyl methylcellulose ether ee hoobiye qarxinta mashiinka?
Dhismaha makaanikada ee madaafiicda ayaa sanado badan lagu tijaabiyay laguna dalacsiiyay gudaha Shiinaha, laakiin wax horumar ah oo la taaban karo lagama gaarin.Marka laga soo tago shakiga ay dadku ka qabaan isbeddellada qaran-dumiska ah ee dhismaha makaanikada ah uu u keeni doono hababka dhismooyinka dhaqameed, sababta ugu weyn ...Akhri wax dheeraad ah -
Saamayn noocee ah ayay ether-ka cellulose ku leedahay walxaha sibidhka ku salaysan?
1. Kulaylka fuuqbaxa Marka loo eego qalooca sii deynta kulaylka fuuqbaxa waqti ka dib, habka fuuq-celinta ee sibidhka waxaa badanaa loo qaybiyaa shan marxaladood, kuwaas oo ah, xilliga fuuq-celinta bilowga ah (0 ~ 15min), muddada soo-saarka (15min ~ 4h) , dardargelinta iyo dejinta muddada (4h ~ 8h), hoos u dhaca ...Akhri wax dheeraad ah -
Ka warran hydroxypropyl methylcellulose 400 viscosity sida hoobiyeyaasha is-mijaa?
Hoobiyeyaasha is-beddelka ah waa walxo budo ah oo qallalan oo qallalan oo ka kooban noocyo kala duwan oo maaddooyin firfircoon ah, kuwaas oo la isticmaali karo ka dib marka lagu qaso biyaha goobta.Ka dib markii wax yar lagu faafiyo xoqan, dusha sare ee salka fidsan ayaa la heli karaa.Xawaaraha adkaanta waa degdeg, waxaadna ku socon kartaa 24 saac gudahood...Akhri wax dheeraad ah -
Ma fahantay doorka muhiimka ah ee ether cellulose ee hoobiye-isku-dhafka ah ee diyaarsan?
Hoobiye diyaarsan oo isku dhafan, qadarka dheeriga ah ee ether cellulose waa mid aad u hooseeya, laakiin waxay si weyn u wanaajin kartaa waxqabadka hoobiye qoyan, waana wax lagu daro ugu weyn oo saameeya waxqabadka dhismaha ee hoobiye.Xulasho macquul ah oo ah ethers cellulose oo noocyo kala duwan ah, muuqaal kala duwan ...Akhri wax dheeraad ah -
Maxay yihiin arrimaha saameeya dhumucda etherka cellulose?
Saamaynta dhumucda ether-ka cellulose waxay kuxirantahay: heerka polymerization of ether cellulose, xoojinta xalka, heerka dhogorta, heerkulka iyo xaaladaha kale.Hantida gelling-ka ee xalku waxay gaar u tahay alkyl cellulose iyo asalkeeda wax laga beddelay.Guryaha gelation-ka waa r...Akhri wax dheeraad ah
