Chigawo choyambirira chasodium lignosulfonateamachokera ku benzyl propane. Gulu la sulfonic acid limatsimikiza kuti lili ndi kusungunuka kwamadzi kwabwino, koma sikusungunuka mu Mowa, acetone ndi zosungunulira zina organic. Chitsanzo softwood lignosulfonate akhoza kufotokozedwa ndi zotsatirazi mankhwala chilinganizo C9H8.5O2.5 (OCH3) 0.55 (SO3H) 0.4.
The structural makhalidwe ndi maselo kulemera kugawa lignosulfonate kudziwa kuti ndi wosiyana ndi ena kupanga surfactants ambiri mbali. Lili ndi zinthu zotsatirazi zakuthupi ndi zamankhwala:
1. Molekyulu yogwira ntchito ya lignosulfonate ili ndi magulu ambiri a hydrophilic ndipo ilibe unyolo wa alkili wofananira, kotero kusungunuka kwake kwamafuta kumakhala kofooka kwambiri, hydrophilicity yake ndi yolimba kwambiri, ndipo mafupa ake a hydrophobic ndi ozungulira, ndipo sangathe kukhala ndi mawonekedwe owoneka bwino ngati wamba. otsika maselo surfactants. Choncho, ngakhale kuti ikhoza kuchepetsa kugwedezeka kwapamtunda kwa yankho, imakhala ndi mphamvu zochepa pazovuta zapamtunda ndipo sizipanga micelles.
2.The mamasukidwe akayendedwe a slurry akhoza kuchepetsedwa powonjezera pang'ono lignosulfonate mu viscous slurry kudzera adsorption ndi kubalalitsidwa; Pamene anawonjezera wochepa thupi kuyimitsidwa, yokhazikika liwiro la inaimitsidwa particles akhoza kuchepetsedwa. Ichi ndi chifukwa lignosulfonate ali wamphamvu hydrophilicity ndi electronegativity. Amapanga magulu a anionic mu njira yamadzimadzi. Pamene adsorbed pa zosiyanasiyana organic kapena inorganic particles, ndi particles kukhala khola kubalalikana boma chifukwa mwagwirizana kunyansidwa pakati anionic magulu. Kafukufuku wina amasonyezanso kuti kutengeka ndi kubalalitsidwa kwa lignosulfonate kumayambitsidwa ndi mphamvu ya electrostatic repulsion ndi kudzoza kwa thovu ting'onoting'ono, Kupaka thovu laling'ono ndilo chifukwa chachikulu cha kubalalitsidwa kwake: kupezeka kwa lignosulfonate kumasiyana ndi kulemera kwake kwa maselo ndi kuyimitsidwa. dongosolo. Nthawi zambiri, tizigawo tomwe timalemera timaselo toyambira 5000 mpaka 40,000 tili ndi zotsatira zabwino zobalalika.
3.chelation lignosulfonate lili kwambiri phenol hydroxyl, mowa hydroxyl, carboxyl ndi carbonyl magulu, imene un nawo awiriawiri elekitironi pa atomu mpweya akhoza kupanga mgwirizano zomangira ndi ayoni zitsulo, chifukwa chelation, kupanga zitsulo chelates wa lignin, motero kukhala ndi makhalidwe atsopano. . Mwachitsanzo, chelation wa lignosulfonate ndi ayoni chitsulo, chromium ion, etc. angagwiritsidwe ntchito pokonza mafuta pobowola matope woonda, ndi chelation kumapangitsanso zina dzimbiri ndi sikelo chopinga zotsatira, amene angagwiritsidwe ntchito ngati wothandizira madzi.
4.Ntchito yogwirizanitsa ili muzomera zachilengedwe. Mofanana ndi zomatira, lignin imagawidwa mozungulira ulusi ndi pakati pa ulusi waung'ono mkati mwa ulusi, wokutidwa ndi ulusi ndi ulusi ting'onoting'ono, kuti ukhale wolimba kwambiri wa mafupa. Chifukwa chomwe mitengo siyingagwere mamita makumi kapena ngakhale mazana a mita ndi chifukwa cha kumamatira kwa lignin. Lignosulfonate wosiyana ndi mowa wakuda akhoza kusinthidwa kubwezeretsa choyambirira zomatira mphamvu, ndi shuga ndi zotumphukira zake mu mowa zinyalala zingathandize kumapangitsanso zomatira mphamvu mwa mogwirizana synergistic kwenikweni.
5.Foaming ntchito The thobvu ntchito lignosulfonate ndi ofanana ndi ambiri polima surfactants, amene ali makhalidwe a otsika thobvu mphamvu, koma kukhazikika kwa thovu, ndi thobvu ntchito lignosulfonate adzakhala ndi zotsatira zina pa ntchito yake ntchito. Mwachitsanzo, ikagwiritsidwa ntchito ngati chochepetsera madzi konkire, pa dzanja limodzi, chifukwa chamafuta a thovu opangidwa ndi lignosulfonate, kuchuluka kwa konkriti kumawonjezeka komanso kugwira ntchito kudzakhala bwino; Kumbali inayi, katundu wotulutsa thovu adzawonjezera kulowetsedwa kwa mpweya ndikuchepetsa mphamvu ya konkire. Mukagwiritsidwa ntchito ngati mpweya wochepetsera madzi, ndizothandiza kukonza kukana kwa chisanu komanso kulimba kwa konkriti.
Nthawi yotumiza: May-08-2023
