1. Waa maxay isticmaalka ugu weyn ee hydroxypropyl methyl cellulose?
HPMCwaxaa si weyn loogu isticmaalaa agabka dhismaha, dahaarka, resin-ka synthetic-ga, dhoobada, daawada, cuntada, dharka, beeraha, qurxinta, tubaakada iyo warshadaha kale. HPMC waxaa loo qaybin karaa heerka warshadaha, heerka cuntada iyo heerka caafimaadka iyadoo loo eegayo isticmaalka.
2. Hydroxypropyl methyl cellulose waxa loo qaybiyaa dhowr nooc, waa maxay faraqa u dhexeeya?
HPMC waxaa loo qaybin karaa si degdeg ah (sumcad "S") iyo kuwa kulul ee milma, kuwa degdega ah, biyaha qabow si dhakhso ah u kala firdhiya, biyaha ku baaba'a, waqtigan dareeruhu ma laha dheellitir, sababtoo ah HPMC wuxuu ku kala firdhisan yahay biyaha, ma jiro dheellitir dhab ah. Qiyaastii 2 daqiiqo, dheellitirka dareeruhu si tartiib tartiib ah ayuu u kordhaa, isagoo samaynaya jel cad oo dhegdheg leh. Kuleyli walxaha milma, oo ku urursan biyo qabow, si dhakhso ah ayuu ugu kala firdhi karaa biyaha kulul, ku baaba'aan biyaha kulul, sida heerkulku hoos ugu dhaco heerkul gaar ah (sida waafaqsan heerkulka jelka ee badeecada), dheellitirka ayaa si tartiib tartiib ah u soo muuqda, ilaa uu ka sameysmo kolloid hufan oo hufan.
3. Sidee si fudud oo dareen leh loogu go'aamin karaa tayada hydroxypropyl methyl cellulose?
1) caddaanka, inkastoo caddaanku uusan go'aamin karin in HPMC uu wanaagsan yahay iyo in kale, haddii lagu daro habka wax soo saarka, wuxuu saameyn doonaa tayadiisa, laakiin, badeecadaha wanaagsan inta badan caddaanku waa wanaagsan yahay.
2) fineness: fineness HPMC guud ahaan waa 80 mesh iyo 100 mesh, 120 ujeedo ka yar, fineness ayaa ka fiican.
3) Gudbinta iftiinka: HPMC biyaha ku jirta, oo sameysanaysa colloid hufan, arag gudbinta iftiinka, weynaanta gelitaanka wanaagsan, sharxi aan milmi karin gudaha, kettle falcelinta toosan darajo ahaan wanaagsan, waxay soo diri doontaa qaar ka mid ah kettle falcelinta toosan, laakiin ma sharxi karo tayada wax soo saarka kettle toosan waxay ka fiican tahay wax soo saarka kettle been, waxaa jira arrimo badan oo go'aamiya tayada badeecada.
4) saamiga: saamiga weyn, ayaa ka culus, ka wanaagsan kan weyn, guud ahaan sababtoo ah maaddada sare ee hydroxypropyl ee gudaha ku jirta, maaddada hydroxypropyl waa sareysaa, haysashada biyuhu way ka fiican tahay.
4. Waa maxay hababka kala dirista ee hydroxypropyl methyl cellulose?
1) Dhammaan moodooyinka waxaa lagu dari karaa walxaha iyadoo la adeegsanayo habka isku darka qalalan;
2) Waxaa loo baahan yahay in si toos ah loogu daro xalka biyaha heerkulka caadiga ah, waxaa fiican in la isticmaalo kala firdhinta biyaha qabow, ka dib marka guud ahaan lagu daro 10-90 daqiiqo gudahood si loo qaro (walaaq walaaq)
3) Moodooyinka caadiga ah waa la milmi karaa ka dib marka la isku qaso oo lagu kala firdhiyo biyo kulul oo lagu daro biyo qabow ka dib marka la walaaqo oo la qaboojiyo;
4) Marka la milmo, haddii dhacdada isku-darka ay dhacdo, waxaa sabab u ah in walaaqku uusan ku filnayn ama qaabka caadiga ah si toos ah loogu daro biyaha qabow. Waqtigan, waa in si dhakhso ah loo walaaqo.
5) Haddii xumbo dhacdo inta lagu jiro kala dirida, waxaa laga saari karaa iyadoo la istaago 2-12 saacadood (waqtiga gaarka ah wuxuu ku xiran yahay isku dheelitirka xalka) ama iyadoo la faakiyuumeynayo oo la cadaadinayo, ama iyadoo lagu darayo xaddi ku habboon oo ah walax ka saarta wasakhda.
5 hydroxypropyl methyl cellulose oo ku jira mugga budada putty?
HPMC marka la eego isticmaalka dhabta ah ee xaddiga, iyadoo loo eegayo jawiga cimilada, heerkulka, tayada calcium-ka cawlan ee maxalliga ah, qaacidada budada putty iyo shuruudaha macaamiisha ee tayada kala duwan, waxaana jira kala duwanaansho ku xeeran, guud ahaan inta u dhaxaysa 4-5 kiilogaraam.
6. Waa maxay dheellitirka ku habboon ee cellulose hydroxypropyl methyl?
Budada Putty guud ahaan waa 100000 qasacad, shuruudaha hoobiyaha ayaa ka sarreeya, ilaa 150000 waa fiican yihiin, HPMC-na door muhiim ah ayay ka ciyaartaa haynta biyaha, waxaana ku xiga dhumuc. Budada Putty, ilaa inta haynta biyuhu ay wanaagsan tahay, dheellitirku uu hooseeyo (7-8), dabcan, dheellitirku wuu ka weyn yahay, haynta biyaha ee qaraabada ah ayaa ka wanaagsan, marka dheellitirku uu ka badan yahay 100,000, dheellitirka haynta biyuhu ma badna.
7. Waa maxay walxaha ugu muhiimsan ee ceeriin ee hydroxypropyl methyl cellulose?
HPMCwalxaha ugu muhiimsan ee ceeriin: suuf la safeeyey, chloromethane, propylene oxide, walxo kale oo ceeriin ah, kiniin alkali ah, acid toluene.
8. Hydroxypropyl methyl cellulose marka la isticmaalayo budada putty, doorka ugu muhiimsan, ma kiimiko baa?
Budada putty, dhumucda, haynta biyaha iyo dhismaha saddex shaqo. Dhumucaynta, cellulose-ka waa la qari karaa ilaa la sudho, si xalku u ahaado mid isku mid ah kor iyo hoos doorka ka hortagga socodka. Haynta biyaha: ka dhig budada putty-ga mid si tartiib ah u qallaji, calcium cawlan oo kaalshiyam ah oo ku jira ficilka falcelinta biyaha. Dhismaha: saliidaynta cellulose, waxay ka dhigi kartaa budada putty-ga inay leedahay qaab wanaagsan. HPMC kama qayb qaadato wax falgal kiimiko ah, laakiin waxay ciyaartaa door taageero ah oo keliya.
9.hydroxypropyl methyl cellulose waa cellulose aan ionic ahayn ether, markaa waa maxay non-ionic?
Marka loo eego dadka caadiga ah, walxaha aan firfircoonayn kama qaybqaataan falcelinta kiimikada.
CMC (carboxymethyl cellulose) waa cellulose cationic, sidaa darteed kalsiyum cawlan wuxuu noqon doonaa haraaga digirta.
10. Waa maxay tilmaamayaasha farsamada ee ugu muhiimsan ee hydroxypropyl methyl cellulose?
Waxyaabaha ku jira Hydroxypropyl
Waxyaabaha ku jira methyl
dhumucda
dambas
Miisaan lumis qalalan
11. Maxaa la xiriira heerkulka jelka ee hydroxypropyl methyl cellulose?
Heerkulka jelka ee HPMC wuxuu la xiriiraa maadada methoxyl, heerka methoxyl ee hooseeya, heerkulka jelka oo sarreeya.
12 budada budada putty iyo xiriirka cellulose hydroxypropyl methyl?
Haddii HPMC ay biyuhu ku yar yihiin, waxay sababi doontaa budada.
13 hydroxypropyl methyl cellulose marka la isticmaalayo budada putty, budo putty ah maxaa sabab u ah?
HPMC ee budada putty, dhumucda, haynta biyaha iyo dhismaha saddex door, sababta xumbo:
1.) Biyo aad u badan ayaa lagu daraa.
2.) Lakabka hoose ma engegan yahay, ka dibna lakab xoqan, kaas oo sidoo kale si fudud u fiiqmi kara.
14. Waa maxay faraqa u dhexeeya cellulose-ka hydroxypropyl methyl ee biyaha qabow ee si dhakhso leh u milma iyo kan kulaylka ku milma ee habka wax soo saarka?
Nooca xalka degdega ah ee biyaha qabow ee HPMC waa ka dib daaweynta dusha sare ee glyoxal, lagu shubo biyo qabow si dhakhso ah ayuu u kala firdhiyaa, laakiin si dhab ah uma milmo, viscosity-gu wuu kordhaa, waa la milmaa. Nooca kuleylku ku milmo laguma daweyn dusha sare ee glyoxal. Qadarka glyoxal waa weyn yahay, kala firdhistu waa dhakhso, laakiin viscosity-gu waa gaabis, qaddarku waa yar yahay, liddi ku ah.
15. Maxaa ka jira urta hydroxypropyl methyl cellulose?
HPMC oo lagu soo saaro habka dareeraha waxaa laga sameeyaa toluene iyo isopropyl alcohol. Haddii dhaqiddu aanay aad u fiicnayn, waxaa jiri doona dhadhan haraaga ah. (Soo kabashada dhexdhexaadintu waa habka ugu muhiimsan ee urta)
16. Sidee loo doortaa hydroxypropyl methyl cellulose ku habboon isticmaalka kala duwan?
Budada Putty: shuruudaha haynta biyaha oo sarreeya, iswaafajin wanaagsan oo dhismaha ah (heerka lagu taliyay: 75AX100000)
Hoobiye caadi ah oo ku salaysan sibidhka: haynta biyaha oo sareysa, iska caabin heerkul sare, dheellitir degdeg ah (heerka lagu taliyay: 75AX150000)
Isticmaalka xabagta dhismaha: alaabada degdegga ah, dheellitirka sare. (Lambarka summada lagu taliyay: 75AX200000S)
Hoobiyaha Gypsum: haynta biyaha oo sareysa, dheellitir dhexdhexaad ah iyo mid hooseeya, dheellitir degdeg ah (heerka lagu taliyay: 75AX75000)
17. Waa maxay naanaysta loo yaqaan hydroxypropyl methyl cellulose?
HPMC ama MHPC oo loo yaqaan hydroxypropyl methyl cellulose, cellulose hydroxypropyl methyl ether.
18. Waa maxay faraqa u dhexeeya hydroxypropyl methyl cellulose iyoMC?
MC waa methyl cellulose, waa suuf la safeeyey ka dib daaweynta alkali, methane chloride waa wakiilka etherifying, iyada oo loo marayo taxane falcelin ah waxaana laga sameeyay cellulose ether, heerka guud ee beddelka waa 1.6-2.0, heerka kala duwan ee milanka beddelka sidoo kale waa ka duwan yahay, wuxuu ka tirsan yahay cellulose ether-ka aan ionic ahayn.
(1) Haysashada biyaha ee methyl cellulose waxay ku xiran tahay xaddiga lagu daray, viscosity, slimming-ka walxaha iyo heerka kala dirista. Guud ahaan, xaddiga lagu daray waa weyn yahay, slimming-ku waa weyn yahay, heerka haysashada biyuhu waa sarreeyaa, xaddiga lagu daray wuxuu saameyn weyn ku leeyahay heerka haysashada biyaha, viscosity-ga iyo heerka haysashada biyuhu ma aha mid ka hooseeya xiriirka, heerka kala dirista waxay inta badan ku xiran tahay heerka wax ka beddelka dusha sare iyo slimming-ka walxaha ee walxaha cellulose. Methyl cellulose iyo hydroxypropyl methyl cellulose ee ku jira dhowrka ether ee cellulose ee kor ku xusan waxay leeyihiin heer haysashada biyaha oo sarreeya.
(2) Methyl cellulose waxaa lagu milmi karaa biyo qabow, biyaha kulul way adkaan doontaa in la milmo, xalka biyaha ee pH = 3-12 waa mid aad u deggan, istaarijka, iwm., iyo surfactants badan ayaa leh iswaafajin wanaagsan, marka heerkulku gaaro heerkulka gelation-ka, waxaa jiri doona ifafaale gelation ah.
(3) Isbeddellada heerkulka ayaa si weyn u saameyn doona heerka haynta biyaha ee methyl cellulose, guud ahaan, marka heerkulku sarreeyo, ayaa ka sii dari doona haynta biyaha. Haddii heerkulka hoobiyaha uu ka bato 40 darajo, haynta biyaha ee methyl cellulose aad ayay uga sii dari doontaa, taas oo si weyn u saamaysa dhismaha hoobiyaha.
(4)Methyl cellulosewaxay saameyn cad ku leedahay dhismaha iyo ku dhegganaanta hoobiyaha. Ku dhegga halkan waxa uu tilmaamayaa xoogga dhejiska ee uu shaqaaluhu dareemo inta u dhaxaysa qalabka iyo derbiga, taas oo ah, iska caabbinta xiirashada hoobiyaha. Ku dheggaagu waa weyn yahay, iska caabbinta xiirashada hoobiyaha waa weyn tahay, xoogga ay shaqaaluhu u baahan yihiin inta lagu jiro habka isticmaalka sidoo kale waa weyn yahay, dhismaha hoobiyahana waa liitaa.
Waqtiga boostada: Abriil-25-2024