Naphthalene sulfonate formaldehyde Condensate(FDN) yi-anionic surfactant ene-water-phobic structure eyenziwe nge-methylene edibeneyo yokuvalwa kweringi kunye ne-water-philic structure kunye neqela le-sulfonic acid. Isetyenziswa ngokubanzi njenge-arhente yokunciphisa amanzi kwikhonkrithi, i-disperant yedayi kunye ne-slurry dispersant yamanzi amalahle ngenxa yenkqubo yayo yokwenziwa ekhulile kunye nokusebenza kakuhle kwe-dispersant. I-FDN ilungiselelwe kwi-naphthalene yezoshishino nge-sulfonation, i-hydrolysis, i-condensation kunye ne-neutralization kunye ne-concentrated sulfuric acid.
Kwiminyaka yakutshanje, ngexabiso le-naphthalene yoshishino, elithatha i-petroleum kunye namalahle njengezinto eziluhlaza, ukunyuka, kuzisa iindleko eziphezulu kwimveliso ye-FDN. Kubaluleke kakhulu kwezoqoqosho ukuqhubela phambili ukuphucula iipropathi ze-FDN ngokuguqulwa komzimba kunye neekhemikhali okanye ukufumana izinto ezintsha zokutshintsha i-naphthalene yezoshishino ukudibanisa i-FDN ukunciphisa iindleko zemveliso.CAS:36290-04-7
I-Naphthalene Sulfonate okwangoku idityaniswe njengoko imveliso ye-FDN i-Condensate ibonelela ngaxeshanye idigri yokuhlanganiswa kweemolekyuli, ukuhanjiswa kobunzima bemolekyuli ebanzi kunye nezinye iimpawu, ukuhlangabezana neemfuno zesicelo sobunjineli, eli phepha, ngeendlela zomzimba ultrafiltration iya FDN ngokwemolekyuli. ubunzima (okwaziwa ngokuba yidigri yepolymerization) buqhubekile kuhlelo, nge-mass spectrometry, i-elemental analyser characterization yeempawu zesakhiwo inqanaba lemolekyuli eyahlukileyo ye-FDN, kwaye yafunda i-FDN eyahlukileyo kwinqanaba lemolekyuli Ukuze ufumane ukusebenza kakuhle kokusasazwa kwebakala le-FDN.I-Sulfonated Naphthalene Condensate/ Ityuwa yeSodium.
Ukuze uphonononge umahluko weendawo ezahlukeneyo zobunzima bemolekyuli ye-FDN ekusebenzeni kwesicelo sokusasazeka kwesamente, eli phepha lifunde ukuziphatha kwe-adsorption ye-FDN kumphezulu wamasuntswana esamente, kubandakanywa amandla e-electrokinetic, amandla e-adsorption, ubukhulu be-adsorption layer, kunye nangemolekyuli. self-assembly, yafumana impembelelo yobunzima bemolekyuli, iityuwa ze-inorganic kunye ne-hydrogen bond force kwi-adsorption ye-FDN. Ukwengeza.
Ixesha lokuposa: May-31-2022