Hydroxethyl Ceyulose (Hec) e sebelisoa haholo indasteri ea eona e ikhethang e kang thepa ea eona e ikhethang, bokhoni ba ho hlaka. Ho utloisisa botsitso ba eona tlas'a maemo a fapaneng a PH bo bohlokoa bakeng sa kopo ea eona e sebetsang.
Hydroxethyl cellulosese (Hec) ke motlatsi ba cellulose, ka tlhaho ba etsahala polymer e fumanehang ka har'a marako a Cel. Hec o hlokometse tlhokomelo e kholo indasteri, litlolo, litlolo, ho kenyelletsa le sekhahla se etsang mekhahlelo, le biocondisatical. Leha ho le joalo, botsitso ba Hec tlasa maemo a fapaneng a PH bo bohlokoa bakeng sa ts'ebeliso ea eona e atlehileng ea liforomo tse fapaneng.
Ho tsitsa ha HC ho ka susumetsoa ke lintlha tse 'maloa, ka pH e be e' ngoe ea maemo a bohlokoa ka ho fetisisa. PH e ama inization boemo ba lihlotšoana tse sebetsang teng ka Hc, ka hona ke tšusumetso ea eona, pono le thepa e meng. Ho utloisisa boits'oaro ba Hec libakeng tse fapaneng tsa PH bo bohlokoa bakeng sa manale a ho ntlafatsa ts'ebetso ea eona lits'ebetsong tse fapaneng.
1 Sebopeho sa 1.chemical of hydroxethyl cellulase:
Hec o kenya letsoho ka tsela ea cellulose ka karabelo ea mllylene Tekanyo ea sebaka (DS) ea li-hydroxethyl litsie li etsa qeto ea thepa ea hec, ho kenyeletsoa le bokhoni ba bona ba alili. Sebopeho sa lik'hemik'hale sa Hec se fana ka litšobotsi tse ikhethang tse etsang hore e be e loketseng likopo tse fapaneng tsa indasteri.
Lihlopheng tsa mantlha tsa Stec ke Hydroxyl (-oh) le lihlopha (- tse phethang karolo ea bohlokoa tšebelisanong ea eona ka metsi le limolek'hule tse ling. Ho ba teng ha hydroxethyl Likhokahano tsa Ether e fana ka botsitso ho limolek'hule tsa hec, ho thibela litšila tsa bona tlasa maemo a tloaelehileng.
2. 2.
Ho tsitsa litsietsi tsa IC libakeng tse fapaneng tsa PH li susumetsoa ke inization ea lihlopha tsa eona tse sebetsang. Maemong acid (ph <7), lihlotšoana tsa hydroyl li ka ba teng ho HEC li ka ba kotsing, 'me li lebisa ho fokotseha ha alloubility le pono. Ka lehlakoreng le leng, ka har'a maemo a Alkaline (PH> 7), ho nyenyefatsa lihlopha tsa hydroxyl ho ka hlaha, tse amang thepa ea Polymerl.
Ha a le ka theko e tlase, ho fana ka litlhaloso tsa lihlopha tsa hydroxy ho ka senya tšebetso ka har'a li-hydrogen tsa hydrogen Ntho ena e phatlalalitsoeng e bitsoa haholo likhato tse phahameng tsa sebaka, moo ho na le palo e kholo ea lihlopha tsa hydroyl e fumanehang bakeng sa protonation. Ka lebaka leo, liketsahalo tsa ntoa tsa Hec li ka fokotsa maemo acidi acidic hantle, li ama ts'ebetso ea eona e le moemeli oa ho holisa.
Ka lehlakoreng le leng, maemong a alkaline, ho nyenyefatsa lihlopha tsa hydroxyl ho ka eketsa tharollo ea hec ka lebaka la ho theha li-Ion tsa alkox. Leha ho le joalo, Malkalinity e ngata e ka etsa hore ho nyenyefatse polymer ka hydrolysis ea ether-e kopantsoeng le likhokahano tsa ether, e bakang ho fokotseha ha viscosity le thepa e 'ngoe. Ka hona, ho boloka boitlamo nakong e loketseng ho hlokahala ho netefatsa botsitso ba maqhubu a Alkaline.
Maikutlo a 3.PoRactical:
Bofokoli ba HC libakeng tse fapaneng tsa PH bo na le litlamorao tse sebetsang bakeng sa tšebeliso ea eona indastering e fapaneng. Indastering ea meriana, hec e sebetsa e le moemeli oa ho holisa ka molomo o kang ho thibela, osinations le gels. Mahla a makhathera ana a tlameha ho laoloa ka hloko ho boloka pono le botsitso ba hec.
Ka mokhoa o ts'oanang, indastering ea litlolo, Hec e sebelisoa lihlahisoa tse kang shampoos, lisele, le litlolo tsa thepa ea eona e matlafatsang. PH ea likhahla tsena e ka fapana haholo ho latela litlhoko tsa sehlahisoa se ikhethang le ka mokhoa o hlakileng oa Hec e nang le metsoako e meng. Ma-fordilator o tlameha ho nahana ka tšusumetso ea PH bothaleng le ts'ebetsong ea Hec ho netefatsa hore katleho ea sehlahisoa le khotsofalo ea bareki.
Indastering ea lijo, hec e sebelisoa e le mohlophisi oa lijo, o sebelisa moemeli maemong a fapaneng, ho kopanyelletsa lesene, liaparo le linotsi. PH ea liforomo tsa lijo e ka ba ea ho tloha acidic ho ea alkaline, ho latela metsoako le maemo a ts'ebetso. Ho utloisisa boitšoaro ba Hec ho libaka tse fapaneng tsa PH Ho hlokahala bakeng sa ho fihlela puo e lakatsehang, molomo le botsitso ho lihlahisoa tsa lijo.
Indastering ea kaho, hec e sebetsa lits'ebetsong tse kang ea maqeba, ho tsoaloa le ho litloafatsa motheo oa ho bolokoa ha eona metsi le li-ruological tsa taolo ea limela tsa metsi. PH ea likhahla tsena e ka fapana ho latela maemo a kang maemo a hop le ho ba teng ha li-advicesitive. Ho ntlafatsa botsitso ba HC ba HC ho bohlokoa bakeng sa ho netefatsa ts'ebetso le ho tšoarella ha thepa ea kaho.
Ho tsitsipana ha hydroxethyl celdroulseyyl celdoulose Ho utloisisa boits'oaro ba Hec tlasa maemo a fapaneng a PH ho bohlokoa bakeng sa manane ho ntlafatsa ts'ebetso ea ona lits'ebetsong tse fapaneng. Ho hlokahala lipatlisiso tse ling ho hlasimolla mecha ea meralo e laolang mecha ea li-hec ebe e hlahisa maano a ho ntlafatsa maemo a eona a ph.
Poso: Feb-18-2025