Karolo ea motheo easodium lignosulfonatee tsoa ho benzyl propane. Sehlopha sa sulfonic acid se etsa qeto ea hore se na le ho qhibiliha ha metsi hantle, empa ha se qhibilihe ka har'a ethanol, acetone le metsoako e meng ea tlhaho. E tloaelehileng ea softwood lignosulfonate e ka hlalosoa ka mokhoa o latelang oa lik'hemik'hale C9H8.5O2.5 (OCH3) 0.55 (SO3H) 0.4.
Litšobotsi tsa sebopeho le kabo ea boima ba limolek'hule tsa lignosulfonate li etsa qeto ea hore e fapane le li-surfactants tse ling tsa maiketsetso maemong a mangata. E na le litšobotsi tse latelang tsa 'mele le lik'hemik'hale:
1.Molek'hule e sebetsang ea lignosulfonate e na le lihlopha tse ngata tsa hydrophilic 'me ha e na ketane ea alkyl e melang, kahoo ho qhibiliha ha oli ea eona ho fokola haholo, hydrophilicity ea eona e matla haholo,' me skeleton ea eona ea hydrophobic e chitja, 'me ha e khone ho ba le tlhophiso ea sehokelo se makhethe joaloka se tloaelehileng. lihlahisoa tse tlase tsa limolek'hule. Ka hona, le hoja e ka fokotsa tsitsipano ea holim'a tharollo, e na le taolo e fokolang holim'a tsitsipano ea holim'a metsi 'me e ke ke ea theha li-micelles.
2.The viscosity ea slurry e ka fokotsoa ka ho eketsa palo e nyenyane ea lignosulfonate ka har'a li-viscous slurry ka ho adsorption le ho hasana; Ha e eketsoa ho ho emisoa ho fokolang, lebelo la ho lokisa la likaroloana tse emisitsoeng li ka fokotsoa. Sena ke hobane lignosulfonate e na le hydrophilicity e matla le electronegativity. E theha lihlopha tsa anionic ka tharollo ea metsi. Ha e khabisoa ka likaroloana tse sa tšoaneng tsa tlhaho kapa tse sa tloaelehang, likaroloana li boloka boemo bo tsitsitseng ba ho hasana ka lebaka la ho hanyetsana pakeng tsa lihlopha tsa anionic. Liphuputso tse ling li boetse li bontša hore ho khabisoa le ho hasana ha lignosulfonate ho bakoa ke matla a electrostatic repulsion le lubrication ea li-bubble tse nyenyane, Ho tlotsoa ha li-bubble tse nyenyane ke lebaka le ka sehloohong la ho hasana ha eona: phello ea ho hasana ea lignosulfonate e fapana le boima ba molek'hule le ho emisoa. tsamaiso. Ka kakaretso, likaroloana tse nang le boima ba limolek'hule ho tloha ho 5000 ho isa ho 40,000 li na le phello e ntle ea ho hasana.
3.chelation lignosulfonate e na le ho feta phenol hydroxyl, joala hydroxyl, carboxyl le carbonyl lihlopha, moo un kopanetsweng lipara tsa elektronike ka athomo ea oksijene ka theha maqhama coordination le ions tšepe, ho fella ka chelation, ho etsa chelates tšepe ea lignin, kahoo ho ba le litšobotsi tse ncha. . Ka mohlala, chelation ea lignosulfonate e nang le ion ea tšepe, chromium ion, joalo-joalo e ka sebelisoa ho lokisa seretse sa ho cheka oli, 'me chelation e boetse e etsa hore e be le liphello tse itseng tsa ho senya le ho thibela sekhahla, tse ka sebelisoang e le moemeli oa phekolo ea metsi.
4.Mosebetsi oa ho kopanya o limela tsa tlhaho. Joaloka sekhomaretsi, lignin e ajoa ho potoloha fiber le pakeng tsa likhoele tse nyenyane ka hare ho fiber, tse kentsoeng ka likhoele le likhoele tse nyenyane, e leng se etsang hore e be sebopeho se matla sa skeleton. Lebaka leo ka lona lifate li ke keng tsa oela fatše bakeng sa limithara tse mashome kapa esita le limithara tse makholo ke ka lebaka la ho khomarela lignin. Lignosulfonate arohaneng le joala ba batsho ka fetoloa ho tsosolosa matla a sekhomaretsi ea pele, 'me tsoekere le derivatives lona ka litšila joala ka thusa ho ntlafatsa matla a bona a sekgomaretsi ka ho thusana synergistic e le hantle.
5.Ts'ebetso ea foaming Ts'ebetso ea foaming ea lignosulfonate e tšoana le ea li-polymer surfactants tse akaretsang, tse nang le litšobotsi tsa matla a fokolang a foaming, empa botsitso bo botle ba foam, le ts'ebetso ea foam ea lignosulfonate e tla ba le phello e itseng ts'ebetsong ea eona ea kopo. Ka mohlala, ha e sebelisoa e le ho fokotsa metsi ka konkreite, ka lehlakoreng le leng, ka lebaka la ho tlotsoa ha li-bubble tse hlahisoang ke lignosulfonate, metsi a konkreite a tla eketseha 'me ho sebetsa ho tla ntlafala; Ka lehlakoreng le leng, thepa e foaming e tla eketsa ho kenngoa ha moea le ho fokotsa matla a konkreite. Ha e sebelisoa e le moemeli oa ho fokotsa metsi a kenang moeeng, ho molemo ho ntlafatsa ho hanyetsa serame le ho tšoarella ha konkreite.
Nako ea poso: May-08-2023
