Hydroxypropyl bylulose bylulose hpmc waa unug-ilkeed oo aan lahayn oo isku-dhafan oo ether ah oo ah noocyo kala duwan oo methymymethhelyl sether-ka la isku daro, kama falcelin bir bir ah. Hal cajaa'ibyo oksijiin ah sababta oo ah hydroxypropyl bluelulose-ka blueropyl iyo pethoxyl-ka-ka-baxa, tusaale ahaan, wax-qabadku wuxuu ku dhow yahay bykroxypropyl noocyada methyl-ka iyo methoxyk-ka hooseeya Waxyaabaha ay ka kooban tahay iyo waxa ku jira sare ee hydroxypropyl noocyo ah, oo ay wax qabad ku tahay waxa ku dhow in ay ku jirto by butyl melulose bylulose. Laakiin nooc kasta oo kala duwan, in kasta oo ay ka kooban tahay qadar yar oo ah hydroxypropyl ama qadar yar oo ka mid ah chothoxy, xadhigga xargaha dareeraha dabiiciga ah ama heerkulka fidsan ee xalka digaaga ama heerkulka fidsan ee xalka aqueous, waxaa jira farqi weyn.
1, hydroxypropyl methyl bylulose conube
Beerta bydroxypyl bylule oo ku jirta xoolaha biyaha ee biyaha hydroxyprose bylule (methyl oxide ocel), sidaa darteed waxay wali la mid tahay unugyada methyl ee kacaanka biyaha oo jilicsan iyo astaamaha biyaha kulul. Si kastaba ha noqotee, heerkulka gelitaanka ee hydroxy wax laga beddelay propyl ayaa aad uga sarreeya kan methyl cellulose biyaha kulul. Tusaale ahaan, dib-u-dhaca cudurka hydroxypropylylrcelrcellesese xalka aqueous xalka aqueous ee ah 2% choxroxypypropyl ms = 0.46 waa 500 MPA 20 ℃. Heerkulka geeska ee geeska ah ee Shed-ka ayaa ku dhow 100 ℃, halka kan methyl cellyl oo isku heerku uu yahay qiyaastii 55 ℃. Sida ay xalihiisa ku jirto biyaha, sidoo kale si weyn loo wanaajiyey, tusaale ahaan, ka dib burburka hyroxypropyl methylrcellellase (qaab hadhuudh ah 0.2%) Piscosity of thes-ka 2pa? .
(2) hydroxypropylylul bylulose ee miraha solyroxpropyl clubyluse methyluse, ayaa sidoo kale ka sareeya hydroxypropyls ms = 1.5 ~ 1.8 iyo Methoxy DS = 0.2 ~ 1.0, viscorty presexypropylylul clutyl clianole oo ka sarreeya 1.8 wuxuu ku milmayaa xalka methanol iyo itmolol methoplast iyo salka heerka xoolaha. Waxay sidoo kale ku milmaysaa hydrocarbons-ka chlororiyons sida Dichloromethane iyo Trichloromethane iyo Trichloromethane, iyo solvents dabiici ah sida acetone, isopropyl aalkolo, iyo aalkolo diletone ah. Xaraashkeeda xariga dabiiciga ah ayaa ka sarreeya jilitaanka biyaha.
2, hydroxypropyl by melulose celcosity ee sababaha saameynta leh
Hydroxypropyl metylcelrellese Waxyaabaha ay ku jiraan hyroxypropyl metylcelrelose placescosis placescosity, iyo unugyada kale ee cellit-ka waa isku mid, waxay leeyihiin 20% xalka aqueous ee heerka caadiga ah. Muuqaalka isla badeecada isla ah, oo la kordhiyo feejignaanta iyo kororka, isku mid ah isku mid ah ee miisaanka miisaanka molikalar, miisaanka molikalular ee sheyga waa viscosity. Xiriirkeeda uu ku leeyahay heerkulka wuxuu la mid yahay kan methyl bylulose. Marka heerkulku kor u kaco, muuqaalku wuxuu bilaabmayaa inuu hoos u dhaco, laakiin marka ay gaarto heerkul gaar ah, viscosity si lama filaan ah ayaa kor u kacda iyo gubashada ayaa dhaca. Heerkulka gelitaanka ee badeecadaha hooseysa ayaa ka sarreeya kan badeecada leh viscosity sare. Heerka ugu hooseeya ee galka, ka sokow aragtida sare iyo kan hoose ee ether, laakiin sidoo kale leh chiech methoxy iyo saamiga heyroxypropyl group-ka iyo heerka guud ee beddelka ayaa laxiriira. Waa in la ogaadaa in hyroxypropyl methylcelrelose ay sidoo kale tahay pudoudoplastic; Xalkeeda waa xasilloon tahay markii lagu keydiyo heerkulka qolka oo uusan muujin wax xaalufinaya oo ah viscosity marka laga reebo suurtagalnimada nabaad-guurka dhalada.
3, hydroxypropyl bylulose playl acid iyo iska caabbinta alkaline
@Droxypropyl methylcelrellose acid acid acidproxyllrcelrellose acid by methypelrcelrellose acid bykylrcelrcelrellase acid by methypelrcelrellase acid by methypelrcelrellase acid 'meth2 ~ Acid', sida aashitada iftiinka, acid acid, acid-ka aashitada, sunta rasaasta, phosphoric. Aashitada, boric acid, iwm. Laakiin aashitada urursan ayaa leh saameynta yareynta viscosity. Alkali sida soodhada, caustic potassium iyo lime wax saameyn kuma laha, laakiin saamaynta wax yar oo kordhaysa ayaa si tartiib tartiib ah u yaraanaya mustaqbalka.
4, hydroxypropyl byluyl bylulose waa la isku qasi karaa
Xalka unugyada ee hydroxyprose miraha kaadida ee metyl waxaa lagu qasi karaa xeryahooda polymer-ku-dhaca biyaha, oo waxay noqon kartaa xalka iskuxiran oo isku mid ah oo leh viscosity. Xeryadahan molikal-ka ee sareeya waa polyeretylen glycol, polyvinyl acetate, polysilicone, polymethyl vinylldose iyo busylyl sildhis iyo buskulka dabiiciga ah, xanjada geeridka dabiiciga ah, ee taayirku sidoo kale waa isku dar wanaagsan xalka. Hydroxypropyl bylulose waxaa sidoo kale lagu qasi karaa assica acid ama palmitic acid, estarol, laakiin sidoo kale glycerol, sortol, kornitol, xeryahaas waxaa loo istcimaali karaa sida hyroxyprose cellyl.
5, hydroxypropyl bylule plululose plululose-ka dib u milmay
Hydroxypropyl bylulose bylulose blulules-ka-Bullule Ether, wuxuu noqon karaa isku xirka dusha sare ee isku xirka aldehydes, oo ay ka dhigi karaan biyo-milicsiga. Oo samee biyo hydroxypropyl metylcelrellose sullulub aldehyde, forlcaldehyde, gellcal, steeccaldehyde, oo ah falcelinta foosha ee xalka, sidaa darteed waxsoosaarka garsoorka ee loo isticmaalo glyxox sida iskutallaabta -Qaar wakiilka wakiilka. Qiyaasta wakiilkan iskutallaabta ah ee xalka ah waa 0.2% ~ 10% ee Ether, waxa ugu fiican waa 7% ~ 10%, sida isticmaalka geltiomal leh 3.3% ~ 6% waa kuwa ugu habboon. Heerkulka guud ee daaweynta waa 0 ~ 30 ℃, waqtigu waa 1 ~ 120min. Fal-celinta iskutallaabta isku xirka ayaa loo baahan yahay in lagu qaado shuruudaha aashitada. Guud ahaan, inortanic acid adag ama shey dabiici ah oo dabiici ah ayaa lagu daray xalka lagu hagaajinayo PH-ga xalka xalka xalka xalka illaa 2 ~ 6, ka dibna u dhaxaysa 4 ~ 6, ka dibna aldehydes ayaa lagu daraa falcelin isku xira. Acids-ka loo adeegsado waa hydrochloric acid, sulfuric acid, acid phosphoric, acid acid, acid acid, oo aashito aashito ama aashito acid ah ama acetic acid ayaa ah kan ugu fiican. Acids iyo aldehydes sidoo kale waa lagu dari karaa isla waqtiga si loo oggolaado in xalka lagu xiriiriyo tirada shaxanka PH ee la doonayo. Fal-celintaan waxaa badanaa loo isticmaalaa geedi socodka ugu dambeeya ee hannaanka digirta ee cell ee celler, si unugyada unugyada ay ether ether aysan u milmin, fududahay in la isticmaalo 20 ~ 25 ℃ biyo si loo maydho oo loo nadiifiyo. Marka badeecada la isticmaalo, walxaha alkaline lagu dari karo xalka sheyga si loo habeeyo pH ee xalka xalka, iyo sheyga si dhakhso leh ayaa loo kala diri doonaa xalka. Qaabkan ayaa sidoo kale loo istcimaali karaa marka unugyada chet-ka ah ee loo isticmaalo in lagu sameeyo filim ka dibna filimka waxaa lagu daaweeyaa si uu u sameeyo filim aan ka dhigin.
6, hydroxypropyl methyl bylulose byzyme
Hydroxypropyl bylulose cell byzyme cellcice of celle of beluloseme ee aragtida unugyada ah sida ay u nugul yihiin infekshanka, laakiin dhab ahaantii sheyga la dhammeeyay si loo beddelo qiimaha in ka badan 1, Sidoo kale sharafdarro Enzzyme, kani waa sharaxaadda koox kasta oo ka mid ah silsiladda unugyada unugyada unugyada lagu beddelo, microorganism-ka ayaa ku dhici kara kooxaha gulukooska ee jahwareerka ee aan la eegayn si ay u sameeyaan sonkorta, taas oo microryaninass sida cuntada. Sidaa darteed, haddii heerka heerka shahaadada ee loo yaqaan 'Ethel-ga' ee cudurka cellulose uu kordhayo, iska caabinta unugyada unugyada ether ee nabaad-guurka ehering ayaa la xoojin doonaa. Waxaa lagu soo waramayaa in ku xusan xaaladaha la xakameeyay, haraaga haraaga ah ee hydroxypropyl bylule (ds = 1.93), celyl bluelose (DS = 1.86), iyo @droxytyl cellulose (1.7%) wuxuu ahaa 13.2%, 7% ,3% , 3.8%, iyo 1.7%, siday u kala horreeyaan. Hydroxypropyl byluleylure waxay leedahay awood anti-enzyme ah oo xoog leh. Sidaa darteed hydroxypropyl methylrcelrelose methylrcelrellase metzyme aad u fiican, oo ay weheliso kala firidhkeeda wanaagsan, sameynta qaro weyn, oo lagu dabaqay dharkaaga emulsion, iwm. Guud ahaan uma baahna inay ku darto waxyaabaha lagu keydiyo. Si kastaba ha noqotee, si looga hortago kaydinta muddada-dheer ee xalka ama faddarayn suurtagal ah ee adduunka ka baxsan, waxaa lagu dari karaa waxyaabaha ka baxsan, kuwaas oo xulasho lagu go'aamin karo iyadoo loo eegayo shuruudaha ugu dambeeya ee xalka. Phenylmercicceerceric acetate iyo manganese waa kuwa wax ku ool ah oo wax ku ool ah, laakiin waa sun sunna waana in si taxaddar leh loo shaqeeyaa. Guud ahaan, 1 ~ 5mg phenylmerciccececuric acetate ayaa lagu dari karaa hal litir kasta oo xalka ah.
7, Hydroxypropyl bylule plulose membranrane
Hydroxypropyl platyl plueluse ee kalkaalida ah ee hydroxypropyl bylulose methyl bylule, xalka aquafed ama xalka qalooca ee dabiiciga ah, ka dib qalajinta muraayadda muraayadda, ka dib wuxuu noqdaa filim aan midab lahayn, oo ah mid adag oo adag. Waxay leedahay iska caabin qoyan oo wanaagsan oo weli ku adag heerkulka sare. Sida ku darista xargaha hygroscopizer, waxay kor u qaadi kartaa dalaggiisa iyo dabacsanaanta, si loo hagaajiyo dabacsanaanta, glycerol iyo sortoll iyo balastar kale ee ugu habboon. U fiirsashada xalka guud waa 2% ~ 3%, qiyaasta daawada balaastiquusku waa 10% ~ 20% ee celther celther. Haddii nuxurka caaga-balaastikada uu yahay mid aan badnayn, ifafaalaha kala-goynta fuuqbaxa ee isku dhaca ayaa ku dhici kara huurka badan. Awoodda khafiifka ah ee filimka lagu daray balaastikada ayaa aad uga weyn kan aan lagu darin, waxayna kordhisaa kororka qaddarka lagu daray, maadaama hygrobopicicity-ka filimka ay sidoo kale kordhayso kororka qaddarka balaastikada.
Waqtiga Post: Sep-08-2022