Ainihin bangaren nasodium lignosulfonateshine tushen benzyl propane. Ƙungiyar sulfonic acid ta ƙayyade cewa yana da kyakkyawar solubility na ruwa, amma ba shi yiwuwa a cikin ethanol, acetone da sauran kaushi na kwayoyin halitta. Lignosulfonate na al'ada softwood ana iya bayyana ta hanyar dabarar sinadarai C9H8.5O2.5 (OCH3) 0.55 (SO3H) 0.4.
Halayen tsari da rarraba nauyin kwayoyin halitta na lignosulfonate sun ƙayyade cewa ya bambanta da sauran surfactants na roba ta fuskoki da yawa. Yana da abubuwa masu zuwa na zahiri da sinadarai:
1.The surface aiki lignosulfonate kwayoyin yana da yawa hydrophilic kungiyoyin kuma babu mikakke alkyl sarkar, don haka ta man solubility ne sosai rauni, da hydrophilicity ne da karfi, da hydrophobic kwarangwal ne mai siffar zobe, kuma ba zai iya samun m lokaci dubawa tsari kamar talakawa. ƙananan kwayoyin surfactants. Sabili da haka, ko da yake yana iya rage girman yanayin maganin, yana da ƙananan iko akan tashin hankali kuma ba zai haifar da micelles ba.
2.The danko na slurry za a iya rage ta ƙara karamin adadin lignosulfonate a cikin danko slurry ta hanyar adsorption da watsawa; Lokacin da aka ƙara zuwa mafi ƙarancin dakatarwa, za a iya rage saurin daidaitawar barbashi da aka dakatar. Wannan shi ne saboda lignosulfonate yana da karfi hydrophilicity da electronegativity. Yana haifar da ƙungiyoyin anionic a cikin maganin ruwa mai ruwa. A lokacin da aka adsorbed a kan daban-daban kwayoyin ko inorganic barbashi, da barbashi kula da wani barga watsawa jihar saboda da juna repulsion tsakanin anionic kungiyoyin. Wasu karatu kuma sun nuna cewa adsorption da watsawar lignosulfonate ana haifar da su ta hanyar ƙarfi na repulsion na electrostatic da lubrication na ƙananan kumfa, Lubrication na ƙananan kumfa shine babban dalilin tarwatsawa: tasirin watsawar lignosulfonate ya bambanta da nauyin kwayoyin sa da dakatarwa. tsarin. Gabaɗaya, ɓangarorin da ke da nauyin kwayoyin halitta daga 5000 zuwa 40,000 suna da mafi kyawun tasirin watsawa.
3.chelation lignosulfonate ya ƙunshi ƙarin phenol hydroxyl, barasa hydroxyl, carboxyl da carbonyl kungiyoyin, a cikin abin da un shared electron nau'i-nau'i a kan oxygen zarra iya samar da daidaituwa bonds da karfe ions, sakamakon chelation, forming karfe chelates na lignin, don haka samun sabon halaye. . Misali, chelation na lignosulfonate da iron ion, chromium ion, da dai sauransu za a iya amfani da su shirya mai hakowa laka thinner, da kuma chelation kuma yana sa shi da wasu lalata da sikelin hana illa, wanda za a iya amfani da a matsayin ruwa magani wakili.
4.The bonding aiki ne a cikin halitta shuke-shuke. Kamar manne, ana rarraba lignin a kusa da fiber da tsakanin ƙananan zaruruwa a cikin fiber, wanda aka sanya shi da zaruruwa da ƙananan zaruruwa, yana mai da shi tsarin kwarangwal mai ƙarfi. Dalilin da ya sa bishiyoyi ba za su iya fadowa ba har tsawon dubun mita ko ma ɗaruruwan mita shine saboda mannewar lignin. Lignosulfonate da aka ware daga barasa baƙar fata za a iya canza su don dawo da ƙarfin mannewa na asali, kuma sukari da abubuwan da suka samo asali a cikin sharar giya na iya taimakawa wajen haɓaka ƙarfin ɗanɗanonsu ta hanyar tasirin haɗin gwiwa.
Ayyukan 5.Foaming Ayyukan kumfa na lignosulfonate yana kama da na gabaɗaya polymer surfactants, wanda ke da halaye na ƙananan ƙarfin kumfa, amma kyakkyawan kwanciyar hankali na kumfa, kuma aikin kumfa na lignosulfonate zai sami wani tasiri a kan aikace-aikacensa. Alal misali, lokacin da aka yi amfani da shi azaman mai rage ruwa na kankare, a gefe guda, saboda lubrication na kumfa da aka samar ta hanyar lignosulfonate, yawan ruwa na kankare zai karu kuma aikin zai zama mafi kyau; A gefe guda, kadarar kumfa za ta ƙara haɓakar iska kuma ta rage ƙarfin siminti. Lokacin amfani da iska entraining ruwa rage wakili, yana da amfani don inganta sanyi juriya da karko na kankare.
Lokacin aikawa: Mayu-08-2023
