Hydroxypropyl methyl cellulose iyo saamiga sibidhka

Waa maxay HPMC Hydroxypropyl methyl cellulose iyo saamiga sibidhka?

Hoobiyaha dahaarka ah ee injineernimada biyuhu, astaamihiisa waxay ku xiran tahay miisaanka saafiga ah ee soo socda ee alaabta ceeriin ee la sameeyay: La taaban karo 30-340, dhismaha dhismaha qashinka budada leben 40-50, lignin fiber 20-24, calcium formate 4-6, hydroxypropyl methyl cellulose 7-9, silicon carbide budada 40-45, budada kalsiyum hydroxide 10. 10-12, qalalan budada ciidda weyn ee magaalada 30-35, Ciidda magaalada Datong 40-45, aluminium sulfate 4-6, carboxymethyl Base istaarijka 20-24, alaabta wax laga beddelay nanotechnology budada kaarboon 4-6, biyaha 600-650; Hoobiyaha dahaarka ee injineernimada biyuhu waxay leedahay dahaarka kulaylka xooggan, caabbinta dabka wanaagsan, isku-xidhka adag ee gidaarka, xoogga cadaadiska, waxqabadka jilicsanaanta, caabbinta gabowga wanaagsan, ilaalinta deegaanka wanaagsan, qoyaanka aadka u fiican, iska caabinta dillaaca, ka hortagga hoos u dhaca. Maanta waxaan ka hadli doonaa oo ku saabsan viscosity of hydroxypropyl methyl cellulose xal aqueous waa dhammaan dhinacyada? Aynu si dhab ah u baranno.

1. Miisaanka molecular ee qaraabada ah, heerkulka xalka aqueous, heerka goynta iyo habka tijaabada ah ee ether cellulose; 2. Heerkulka kala-guurka dhalada ee sarreeya, waa ka weyn yahay miisaanka molecular qaraabada, viscosity ee xalku si dabiici ah ayuu u sarreeyaa; 3. Maaddada sare ee ether cellulose, waxay sare u kacdaa viscosity ee xalka, sidaas darteed hirgelinta codsiga waa in aan fiiro gaar ah u leenahay qadarka ku habboon ee isku-dhafka, ka hortagga isku-dhafka waa mid aad u sarreeya, oo si toos ah u saameeya sifooyinka dhoobada sibidhka iyo shubanka sibidhka; 4. Sida inta badan xalka, viscosity ayaa sidoo kale hoos u dhigi doona kororka heerkulka, oo lagu daray heerka sare ee etherka cellulose, way sii weyn tahay waxyeelada heerkulka; Intaa waxaa dheer, saameynta dhumucda dhabta ah waxay sidoo kale ku kala duwan tahay qiyaasta biyaha loo isticmaalo sibidhka epoxy.

Hydroxypropyl methyl cellulose viscosity xal aqueous sidoo kale u adeegi kartaa sida link a muhiimka ah ee comments on sifooyinka ether cellulose, sare viscosity of xal aqueous, dhumucdiisuna waxay ka mid ah alaabta cement epoxy yihiin, ka wanaagsan, on dhabarka ee guryaha gelling saxan, laakiin haddii viscosity waa mid aad u weyn, waxyeellayn doonaa sibidhka epoxy inforce isla markiiba dareeraha. Marka loo eego qaar ka mid ah hoobiyeyaasha is-heereeya ee leh dareere sarreeya, viscosity ee etherka cellulose ayaa lagu qeexi doonaa inuu hooseeyo.

Xalka aqueous cellulose ether waa jir pseudoplastic ah, annagu marxaladda dambe ee ogaanshaha heerka xiirid waa ka weyn yahay, viscosity waa yar yahay.

Sidaa darteed, si loo soo koobo waa: isku dhafka ah ee hoobiye cement waa la dhimi doonaa by xoog dibadda, taas oo faa'iido u ah dhismaha injineernimada ka dambeeya, laakiin cellulose ether xal aqueous kiiska qiimaha fiirsashada aad u hooseeya, dhici doona sifooyinka dareeraha non-Newtonian, liddi ku ah, marka qiimaha fiirsashada la kordhiyo, xal biyaha ku dhici doona sifooyinka dareere pseudoplastic.

Haysashada biyaha ee hydroxypropyl methyl cellulose waa mid ka mid ah sifooyinka muhiimka ah ee hydroxypropyl methyl cellulose. Heerarka uumiga biyaha ee ku jira hoobiye isku dhafan iyo alaabta ku salaysan balastarrada waxaa saameeya heerkulka gaaska, heerkulka iyo heerka cadaadiska. Sidaa darteed, xilliyo kala duwan, oo lagu daray hydroxypropyl methyl cellulose isla qadarka waxtarka biyaha badeecada ayaa leh kala duwanaansho.

Guud ahaan, marka uu sareeyo viscosity of hydroxypropyl methyl cellulose waa, si ka wanaagsan saamaynta dhabta ah ee haysashada biyuhu noqon doonaa, laakiin waxyeellada ku haysashada viscosity ee biyaha waa la dhimi doonaa ka dib markii viscosity ka badan 100,000 Mpa. s. Marka viscosity of HYDROXYpropyl methyl cellulose ka badan yahay 100,000, heerka haynta biyaha si weyn loo hagaajin karaa iyadoo la kordhinayo cadadka hydroxypropyl methyl cellulose.

Habka dhismaha ee faahfaahsan, saamaynta xajinta biyaha ee slurry waxaa lagu hagaajin karaa iyadoo la hagaajinayo qadarka hydroxypropyl methyl cellulose. Badeecadaha taxanaha ah ee Hydroxypropyl methyl cellulose waxay si wax ku ool ah u xalin karaan dhibaatada haynta biyaha ee heerkul sare oo joogto ah. Xilliga heerkulka sare ee joogtada ah, gaar ahaan meelaha kulul iyo caajiska ah iyo dhismaha chromatography ee dhinaca qorraxda, tayada sare ee HYDROXYpropyl methyl cellulose ayaa loo baahan yahay si loo horumariyo xajinta biyaha ee slurry.

Tayada sare ee hydroxypropyl methyl cellulose, waxa uu leeyahay dheelitirnaan wanaagsan, ay butyl iyo hydroxypropyl oxygen kooxaha functional oo ay weheliyaan qaybinta qaab-dhismeedka silsilad molecular fiber wadajirka ah, waxay horumarin kartaa kooxda methyl aldehyde iyo oxygen ah, iyo tayada biyaha ee bonds covalent qaab digital, noqon kartaa biyo xidhxidhan iyo biyaha ee kala firidhsan, ka dibna si wax ku ool ah loo xakameeyo heerkulka biyaha sare.

Tayada sare ee hydroxypropyl methyl cellulose ku haboon karaa dabacsan iyo dhul ganacsi in hoobiye isku qasan iyo alaabta malaastaan, iyo dhammaan qaybaha adag cyst, qoyan, qabow, iyo samaynta lakabka ah ee filimka, qoyaan in muddo dheer dhexdhexaad ah si tartiib ah u sii daayo salka, la bilawga ee admixture organic falcelinta fuuqbaxa, ka dibna dammaanad isku-duubnida alaabta ceeriin xoog cadaadis iyo xoog adkaysi. In geeddi-socodka dhismaha xagaaga sare joogto ah, sidaas darteed, si ay u gaaraan saamaynta biyaha, waa in ay ahaataa si waafaqsan recipe qadar gaar ah iyo tayada alaabta cellulose hydroxypropyl methyl, haddii kale, tusi doonaa caajis aad u degdeg ah oo keenaya fuuq aan ku filnayn, la yareeyo xoogga cadaadis, kala qaybsanaan, soo baxay tayada sida durbaan madhan metope iyo shaki, sidoo kale lagu daray shaqaalaha dhismaha adag coefficient. Marka heerkulku hoos u dhaco, qadarka hydroxypropyl methyl cellulose si tartiib ah ayaa loo dhimi karaa waxaana la gaari karaa saameyn la mid ah haynta biyaha.

Haddii ether cellulose aan lagu darin, chromatography ee hoobiye cement cusub si deg deg ah u engejin doonaa, samaynta shubka aan la fuuqayn karaa si caadi ah, taasoo keentay in hoobiye cement ma noqon kartaa mid adag primed iyo heli adhesion ka wanaagsan. Isla mar ahaantaana, ku darida ether cellulose waxay ka dhigaysaa hoobiye sibidhka inay leeyihiin ductility iyo dabacsanaan wanaagsan, waxayna wanaajisaa isku-xidhka xoogga isku-xidhka ee hoobiye sibidhka.

1, hydroxypropyl methyl cellulose cabbirka walxaha

Baaxadda walxaha ether-ka cellulose waxay dhaawacaysaa milmaheeda. Eter-ka cellulose-ka aadka u yar waa, sida ugu dhakhsaha badan heerka burburka ee biyaha iyo sare u qaadida sifooyinka biyaha. Sidaa darteed, xajmiga qaybta etherka cellulose waa in lagu daraa baaritaanka mid ka mid ah sifooyinkeeda. Guud ahaan, cabbirka walxaha ether cellulose ee 80 mesh oo ku salaysan.

2, hydroxypropyl methyl cellulose engegan oo aan heerka cuf

Manic qalalan oo aan lahayn cuf-jiid, waxaa loola jeedaa heerkul gaar ah oo ether manic cellulose ether qalalan, luminta tayada kiimikaad ayaa lagu xisaabtamay boqolkiiba tayada saamiga asalka ah ee halabuurka. Waayo, tayada qaar ka mid ah ether cellulose ee ether qalalan oo aan heerka cuf aad u sarreeya, hoos u dhigi doonaa qaybaha khuseeya ee ether cellulose, waxyeelo saamaynta dhabta ah ee isticmaalka shirkadaha hoose, laakiin sidoo kale hagaajin qiimaha iibka. Caadiyan ether-ka cellulose eter-ka qalalan ee aan lahayn heerka cuf-jiidadu waa inaanu ka badnayn 5.0%.

3, hydroxypropyl methyl cellulose potassium thiocyanate ash

Waayo, tayada qaar ka mid ah ether cellulose in content ash waa mid aad u sarreeya, hoos u dhigi doonaa ether cellulose ee qaybaha la xiriira, waxyeelo saamaynta dhabta ah ee isticmaalka shirkadaha hoose, cellulose ether potassium thiocyanate content ash waa tixgelinta ugu weyn ee sifooyinka gaarka ah qiimaha index.

4, hydroxypropyl methyl cellulose viscosity

Hydroxypropyl methyl cellulose biyaha haynta iyo saamaynta dhumucdiisuna waa furaha lagu daro sibidhka hoobiye cellulose ether in ay viscosity iyo isku darka u gaar ah.

5, hydroxypropyl methyl cellulose PH qiimaha

Viscosity ee alaabta hydroxypropyl methyl cellulose si tartiib tartiib ah hoos ugu heerkulka sare ama ka dib kaydinta muddo dheer, gaar ahaan alaabta viscosity sare, sidaas darteed qiimaha pH waa in la xaddido. Guud ahaan waxaa lagu qeexay in qaybta qiimaha PH ee etherka cellulose ay tahay in loo shaqeeyo sida 5-9.

6. Gudbinta hydroxypropyl methyl cellulose

Faa'iidooyinka iyo khasaaraha gudbinta hydroxypropyl methyl cellulose waxay si toos ah u saameyn kartaa saameynta dhabta ah ee isticmaalka qalabka dhismaha. Qodobbada asaasiga ah ee waxyeelleeya gudbinta etherka cellulose waa1) tayada alaabta ceeriin; (2) saamaynta dhabta ah ee dhimashada; (3) Diyaarinta farsamada farsamaynta; (4) diyaarinta dareeraha organic; (5) Saamaynta dhabta ah ee zhonghe.

Marka loo eego saameynta codsiga dhabta ah, gudbinta ether cellulose waa inaysan ka yarayn 80%.

7, hydroxypropyl methyl cellulose heerkul la tuhunsan yahay

Hydroxypropyl methyl celluloseqaybaha sibidhka oo ah furaha lagu kordhinayo xabagta, viscosity iyo wakiilka biyaha, sidaas darteed viscosity iyo heerkulka jel waa qiimaha index muhiimka ah ee hydroxypropyl methyl cellulose. Heerkulka waxaa loo isticmaalaa in lagu xukumo nooca iyo qeexida ether cellulose, iyo heerka beddelka etherka cellulose ayaa la xidhiidha.

8. Intaa waxaa dheer, milix iyo haraaga ayaa sidoo kale waxyeeleyn doona heerkulka xabagta. Marka heerkulka xalka aqueous kor u kaco, polymer fiber si tartiib ah biyo la'aan, iyo viscosity ee xal aqueous hoos u dhaco. Marka barta koollada la gaaro, polymer si buuxda ayaa loo engejiyey oo koollada ayaa la soo saaraa. Sidaa darteed, heerkulka hawlgalka ee xubnaha sibidhka ayaa inta badan ka hooseeya heerkulka asalka ah. Marka la eego heerkan, heerkulku wuu hooseeyaa, waa uu kordhaa viscosity-ku, iyo waxa ka sii muhiimsan saamaynta dhabta ah ee muuqashada iyo haysashada biyaha.