Asalka iyo Dulmarka
Cilmiga chet-ka ayaa ah mid si weyn loo isticmaalo polymer si weyn loo isticmaalo shey kiimiko ah oo laga sameeyay by polymer polymer dabiiciga ah oo loo maro daaweynta kiimikada. Soosaarista unugyada unugyada unugyada ka dib iyo cellulose waxay asaasay qarnigii 19aad, farmashiistaha ayaa sameeyay taxane muuqaal ah oo ka kooban unugyada unugyada unugyada unugyada ah ee keli ah, iyo meelaha cusub ee arjiga ayaa si isdaba joog ah loo helay, oo ay ku lug leeyihiin waaxyo badan oo warshadeed. Cellulose Ether-ka Ether ah sida sodium Carborborykyl byrose (ECC), hydroxytyl cellylyl (HICCyl hydroxyll (MHPYL Hydroxylyprose (MHPC) iyo metryl hydroxylyplus (MHPC) iyo anshaxa kale ee keli ah ayaa loo yaqaan "warshadeed Monosodium glutamate "oo si ballaaran loogu adeegsaday qoditaanka saliida, dhismaha, xaashiyaha, cuntada, dawada iyo kiimikooyinka maalinlaha ah.
Bydroxyetylylyl bylulose (MHPC) waa ur, dhadhan la'aan, budo cad oo aan sun lahayn oo lagu kala diri karo biyo qabow si loo sameeyo xalka viscous ee hufan si loo sameeyo xalka viscous ee hufan si loo sameeyo xal vispare Waxay leedahay astaamaha dhumucda, kuna firidhsan, kala firidhsan, emulsing, sameynta filimka, oo laga joojinayo, xaraashka, dusha sare, oo kacsan, sii wadida qoyaan iyo ilaalinta codka. Sababo la xiriira sagxadaha firfircoon ee xalka aqueous, waxaa loo isticmaali karaa inay tahay wakiilka kahortaga qulqulka, emulsifier iyo kala firidhsan. Hydroxyetylcellcellelrcellersose xalka aquophicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicication uuna yahay wakiilka haynta biyaha ee hufan. Sababtoo ah hydroxyetylylrcelrelolose waxaa ku jira kooxaha hydroxytyletyl, waxay leedahay awood-wax-hayeenka wax-hayeeya, xasilloonida muuqaalka muuqaalka ah iyo iska caabin dhexdhexaad ah iyo iska caabbinta muddada-dheer.
@Droxyetylylylrcellellenose (hemc) waxaa lagu diyaariyey iyada oo la soo bandhigo Ethelineent Ovide (Ms 0.4 ~ 0.4) oo ku dhex jira methylrcellulose (MC), iyo caabbigiisa milixda ayaa ka fiican kuwa pomoom-ka aan la qaban. Heerkulka gelitaanka ee methylcellosuse sidoo kale wuu ka sarreeyaa kan MC.
Qaab
Muujinta
Astaamaha ugu weyn ee hydroxyetylylrcylrcellersose (hemc) waa:
1. Xabsi: Ku milatari biyo iyo qaarlo dabiici ah oo dabiici ah. Hemc waxaa lagu kala diri karaa biyo qabow. U fiirsashada ugu sarreysa waxaa lagu go'aamiyaa kaliya viscosity. Xalaashku waxay ku kala duwan tahay viscosity. Hoos u dhaca cod-galka, kuwa kor u qaadida jilitaanka.
2. Cilmiga milixda: Alaabada hemc waa anshax-gacmeedyo aan caadi ahayn, sidaa darteedna waxay ku xasilloon yihiin xalka milixda aqueol ah ama isku-darka badan ee tamarta leh, laakiin isku-darka xad-dhaafka ah ee electrolytes ayaa sababi kara grace iyo roobab.
3. Firfircoonaanta dusha sare
4. Qulqulka kuleylka ah
5. Xirfadaha dheef-shiid kiimikaad iyo ur hooseeya iyo udgoon: HEMC waxaa si weyn loogu adeegsadaa cuntada iyo dawada maxaa yeelay lama qaadan doono lacag iyo ur hooseeya iyo ur.
6. Cadaadiska cafiska ah: hemc wuxuu leeyahay iska caabin cafiska ah oo wanaagsan iyo xasilloonida aragga ee wanaagsan inta lagu jiro kaydinta muddada-dheer.
7. PH Deganaansho
Isticmaal
Hydroxyetylylcellellalose waxaa loo isticmaali karaa wakiilka kahortaga qulqulka, emulsifier iyo kala firidhsan oo ku aadan shaqadiisa ugu firfircoon ee xalka aquous. Tusaalooyinka codsigeeda waa sida soo socota:
1. Saamaynta hydroxyetylylylylkyl methylrcellellase ee ku saabsan waxqabadka sibidhka. Hydroxytylylcellcellellalose ma metylcelrenose waa ur, dhadhan la'aan, budo cad oo aan sun lahayn oo lagu kala diri karo biyo qabow si ay u sameeyaan xalka viscous ee hufan si ay u sameeyaan xalka viscous ee hufan si loo sameeyo xalka viscous ee hufan si loo sameeyo xalka viscous ee hufan si loo sameeyo xalka viscous ee hufan si loo sameeyo xalka viscous ee hufan. Waxay leedahay astaamaha dhumucda, kuna firidhsan, kala firidhsan, emulsing, sameynta filimka, oo laga joojinayo, xaraashka, dusha sare, oo kacsan, sii wadida qoyaan iyo ilaalinta codka. Maaddaama xalka aqueous uu leeyahay wax qabad leh oo firfircoon, waxaa loo isticmaali karaa inuu yahay wakiilka kahortaga qulqulka, emulsifier iyo kala firidhsan. Hydroxyetylcellcellelrcellersose xalka aquophicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicicication uuna yahay wakiilka haynta biyaha ee hufan.
2. Rinjiyeynta gargaarka sare ee dabacsan ayaa loo diyaariyey, oo ka samaysan waxyaabaha soo socda ee qaybaha ceyriinka ah miisaanka miisaanka: 150-200 g oo ah biyo damacsan; 60-70 g oo ah emulsion saafi ah; 550-650 g oo ah kaalshiyam culus; 70-90 g oo ah budada 'talcum'; Xalka keydka ee salka ku salka ku haysa 30-40g; ligmocelluose xalka aqueous 10-20g; Filimka-sameynta gargaarka 4-6g; antiseptic iyo sunta lagu dilo 1.5-2.5g; kala firidhsan 1.8-2.2g; Wakiilka qoynta 1.8-2.2g; 3.5-4.5g; Ethylene glycol 9-11g; @Droxytylkylkylkyllcellellese xalka aquous waxaa lagu sameeyaa iyada oo lagu kala diro 2-4% hydroxyetyl methylcellulose biyaha; Xalka aquekocellus ee aquecocelse wuxuu ka kooban yahay 1-3% lighellosuse waxaa lagu sameeyaa iyada oo lagu diro biyaha.
Diyaar garoow
Habka diyaarinta ee hydroxytylylyl bylulose bylule, habka loo safeeyey suufka lagu safeeyey waxaa loo isticmaalaa sida shey ceyriin ah, iyo ethelinenenenene-ka waxaa loo istcimaalay si loo diyaariyo meherka byroxyetyl. Qeybaha culeyska ee ashyaa'da ceyriinka ah ee loogu diyaariyo hydroxytylylrcellellase waa sida soo socota: 700-800 qaybo ka mid ah biyaha, 80-80 qaybo ka mid ah ethedyt, 80-90 qaybood oo ka mid ah methyl chloride, 16-19 qaybood oo ka mid ah acetic acetic aashitada; Tallaabooyinka gaarka ah waa:
Tallaabada ugu horreysa, ee jeblaadka falcelinta, ku dar isku dar ah iyo isopropropanol, biyo, iyo sodium hydroxide, kuleyl ilaa 60-80 ° C, oo ku hay 20-40 daqiiqo;
Tallaabada labaad, alantasization: Ku qabooji qalabka kor ku xusan ilaa 30-50 ° C, oo ku dar suuf oo la safeeyey, kuna buuxiso ka dib marka loo eego 'alantation', oo heerkulka alkalization waa 2 saacadood, iyo heerkulka alantasization waa 30 ° C illaa 50 ° C ilaa 50 ° C.
Tallaabada saddexaad, xirashada: ka dib markii la dhammeeyo ka dib markii wax lagu xumaado, soo noqnoqodku wuxuu u daadgureeyay 0.05-0.07mpa, iyo methyne oxide iyo methyl chloride-ka ayaa lagu daray 30-50 daqiiqo; Marxaladda koowaad ee xirashada: 40-60 ° C, 1.0-2.0 saacadood, cadaadiska waxaa lagu xakameynayaa inta u dhexeysa 0.15 iyo 0.3mpa; Marxaladda labaad ee xirashada: 60 ~ 90 ℃, 2.0 ~ 2.5 saacadood, cadaadiska ayaa la xakameynayaa inta u dhexeysa 0.4 iyo 0.8MPA;
Tallaabada afraad, ka-tirsanaanta: Ku dar acid filarial oo nadiif ah oo ka hor kabaarka roobka, heerkulka kor u kacaya 102 ° C. Taangiga qurxinta ayaa ka buuxsamay biyo tuubbo lagu daaweeyo aaladda osmosis-ka dib-u-soo-noqoshada 90 ° C illaa 100 ° C.
Tallaabada shanaad, carada centrifugal: maaddada tallaabada afraad waxay ku jirtaa Centrifuge Securt Securt Securt Securt Securr Securrit, oo agabka kala-goynta waxaa loo wareejiyaa haanta lagu dhaqo oo ka buuxaan biyo kulul.
Tallaabada lixaad, qalajinta centrifugal: sheyga la maydhay waxaa lagu gaadhsiiyaa qalajiyaha iyada oo loo marayo centrifeed daboolka toosan, iyo maaddada ayaa la qalajiyey 150-170 ° C, iyo maaddada qalalan ayaa la burburiyey oo xirxiran.
Marka la barbar dhigo tikniyoolajiyada soosaarka ee Ether Ether ee jira, oo ah wax-abuurka hadda jira wuxuu adeegsadaa Ethylineene Ovide inuu yahay wakiil saliideed oo u diyaarinaya hyroxytyl by byelyl bylule, kaas oo leh kooxo-cafiska wanaagsan ee ay ka mid yihiin kooxaha hydroxytyl. Waxay leedahay xasillooni muuqaal ah oo muuqaal ah iyo iska caabbinta qallalan inta lagu jiro kaydinta muddada-dheer. Waxaa loo isticmaali karaa halkii laga isticmaali lahaa ee kantaroolka kale ee keli ah.
Waqtiga Post: Mar-10-2023