Icandelo elisisiseko lesodium lignosulfonateI-benzyl propane derivative.Iqela le-asidi ye-sulfonic inquma ukuba inokunyibilika kakuhle kwamanzi, kodwa ayinyibiliki kwi-ethanol, i-acetone kunye nezinye i-solvents eziphilayo.I-softwood eqhelekileyo i-lignosulfonate inokubonakaliswa ngolu hlobo lwemichiza elandelayo C9H8.5O2.5 (OCH3) 0.55 (SO3H) 0.4.
Iimpawu zesakhiwo kunye nokusabalalisa ubunzima bemolekyuli ye-lignosulfonate inquma ukuba ihluke kwezinye izinto ezixutywayo zokwenziwa kwiinkalo ezininzi.Inomphezulu weempawu zomzimba kunye neekhemikhali zilandelayo:
I-1.I-surface esebenzayo ye-lignosulfonate molekyuli inamaqela amaninzi e-hydrophilic kwaye ayikho i-alkyl chain linear, ngoko ke ukunyibilika kwayo kwe-oyile kubuthathaka kakhulu, i-hydrophilicity yayo yomelele kakhulu, kwaye i-hydrophobic skeleton yayo ingqukuva, kwaye ayinakuba ne-interface yesigaba esicocekileyo njengesiqhelo. ii-surfactants ezisezantsi zemolekyuli.Ngoko ke, nangona inokunciphisa ukunyanzeliswa komphezulu wesisombululo, inokulawula okuncinci kwi-tension surface kwaye ayiyi kubumba i-micelles.
I-2.I-viscosity ye-slurry ingancitshiswa ngokongeza inani elincinci le-lignosulfonate kwi-viscous slurry ngokusebenzisa i-adsorption kunye ne-dispersion;Xa ifakwe kwi-thinner suspension, isantya sokumisa iinqununu ezimisiweyo sinokuncitshiswa.Oku kungenxa yokuba i-lignosulfonate ine-hydrophilicity eyomeleleyo kunye ne-electronegativity.Yenza amaqela e-anionic kwisisombululo samanzi.Xa i-adsorbed kwiintlobo ezahlukeneyo ze-organic or inorganic particles, iinqununu zigcina i-stable dispersion state ngenxa yokunyathelana phakathi kwamaqela e-anionic.Olunye uphando lukwabonisa ukuba i-adsorption kunye nokusasazwa kwe-lignosulfonate kubangelwa amandla okugxothwa kwe-electrostatic kunye nokuthambisa amaqamza amancinci, Ukuthambisa kwamaqamza amancinci sesona sizathu sokusasazeka kwayo: isiphumo sokusasazeka kwe-lignosulfonate siyahluka kubunzima bayo bemolekyuli kunye nokunqunyanyiswa. inkqubo.Ngokubanzi, amaqhezu anobunzima bemolekyuli ukusuka kwi-5000 ukuya kwi-40,000 inesiphumo esingcono sokusasazeka.
I-3.chelation lignosulfonate iqulethe ngaphezulu kwe-phenol hydroxyl, i-alcohol hydroxyl, i-carboxyl kunye namaqela e-carbonyl, apho izibini ze-electron ekwabelwana ngazo kwi-athomu ye-oksijini zingenza iibhondi zokulungelelanisa kunye nee-ion zetsimbi, okukhokelela kwi-chelation, ukwenza i-metal chelates ye-lignin, ngaloo ndlela ibe neempawu ezintsha. .Ngokomzekelo, i-chelation ye-lignosulfonate ene-iron ion, i-ion ye-chromium, njl.
4.Umsebenzi wokudibanisa ukwizityalo zendalo.Njenge-adhesive, i-lignin isasazwa ngeenxa zonke kwi-fiber kunye naphakathi kweentsinga ezincinci ngaphakathi kwefiber, ezifakwe kwi-fibers kunye ne-fibers encinci, iyenza ibe yi-skeleton structure eyomeleleyo.Isizathu sokuba imithi ingakwazi ukuwela amashumi eemitha okanye amakhulu eemitha ngenxa yokunamathela kwe-lignin.I-Lignosulfonate eyahlulwe kutywala obumnyama inokuguqulwa ukubuyisela amandla okunamathela okuqala, kunye neswekile kunye nezinto eziphuma kuyo kwi-alcohol enkunkuma inokunceda ukunyusa amandla abo okunamathela ngokusebenzisa i-synergistic effect.
I-5.Ukusebenza kwegwebu Ukusebenza kwe-lignosulfonate egwebu kufana naleyo ye-polymer surfactants jikelele, eneempawu zomthamo ophantsi we-foam, kodwa uzinzo oluhle lwe-foam, kunye nokusebenza kwe-lignosulfonate kuya kuba nefuthe elithile ekusebenzeni kwayo kwesicelo.Ngokomzekelo, xa isetyenziswe njengento yokunciphisa amanzi ekhonkrithi, kwelinye icala, ngenxa ye-lubrication ye-bubbles eveliswa yi-lignosulfonate, i-fluidity yekhonkrithi iya kwanda kwaye ukusebenza kuya kuba ngcono;Ngakolunye uhlangothi, ipropati ye-foaming iya kwandisa ukungena komoya kunye nokunciphisa amandla ekhonkrithi.Xa isetyenziswe njenge-ejenti yokunciphisa amanzi yokungenisa umoya, kunenzuzo ukuphucula ukuxhathisa kweqabaka kunye nokuqina kwekhonkrithi.
Ixesha lokuposa: May-08-2023