Qaybta aasaasiga ah eesodium lignosulfonatewaa benzyl propane derivative. Kooxda sulfonic acid ayaa go'aamisa in ay leedahay biyo nadiif ah oo wanaagsan, laakiin waa mid aan milmi karin ethanol, acetone iyo dareerayaasha kale ee dabiiciga ah. Lignosulfonate softwood caadiga ah waxaa lagu muujin karaa qaacidada kiimikada ee soo socota C9H8.5O2.5 (OCH3) 0.55 (SO3H) 0.4.
Sifooyinka qaabdhismeedka iyo qaybinta miisaanka kelli ee lignosulfonate ayaa go'aamiya in ay ka duwan tahay surfactants kale ee synthetic dhinacyo badan. Waxay leedahay sifooyinka soo socda ee jirka iyo kiimikaad:
1.The dusha firfircoon lignosulfonate molecule waxa uu leeyahay kooxo badan oo hydrophilic ah oo aan lahayn silsilad alkyl toosan, si ay milanka saliidda waa mid aad u daciif ah, ay hydrophilicity waa mid aad u xoog badan, iyo ay hydrophobic qalfoof waa wareegsan, oo ma waxay yeelan kartaa habayn interface nadiif ah sida caadiga ah. surfactants molecular hoose. Sidaa darteed, inkasta oo ay yarayn karto xiisadda dusha sare ee xalka, waxay leedahay xakameyn yar oo ku saabsan xiisadda dusha sare mana samayn doonto miceles.
2. Viscosity of slurry waxaa lagu yarayn karaa iyada oo lagu daro xaddi yar oo lignosulfonate galay slurry viscous iyada oo adsorption iyo kala firdhiso; Marka lagu daro hakinta khafiifka ah, xawliga dejinta ee walxaha laalaa waa la dhimi karaa. Tani waa sababta oo ah lignosulfonate waxay leedahay hydrophilicity iyo electronegativity xooggan. Waxay ku samaysaa kooxo anionic xal aqueous ah. Marka lagu dhajiyo qaybo kala duwan oo organic ama aan noolaha ahayn, qaybuhu waxay ilaaliyaan xaalad kala firidhsan oo deggan sababtoo ah iska-caabbinta labada kooxood ee anionic. Daraasadaha qaarkood ayaa sidoo kale muujinaya in xayeysiinta iyo kala firdhinta lignosulfonate ay sababto xoogga dib-u-celinta elektrostatic iyo sifeynta goobooyin yaryar, Saliideynta goobooyin yaryar ayaa ah sababta ugu weyn ee ay u kala firidhsan tahay: saameynta kala-baxa ee lignosulfonate waxay ku kala duwan tahay culeyskeeda kelli iyo hakinta. nidaamka. Guud ahaan, jajabyada leh miisaanka molecular ee u dhexeeya 5000 ilaa 40,000 waxay leeyihiin saameyn fidinta wanaagsan.
3.chelation lignosulfonate waxaa ku jira phenol hydroxyl badan, khamriga hydroxyl, carboxyl iyo carbonyl kooxaha, taas oo aan la wadaago lammaane elektaroonik ah atamka oxygen samayn karaa bonds isuduwidda leh ions biraha, taasoo keentay in chelation, samaynta chelates biraha of lignin, sidaas darteed isagoo leh astaamo cusub . Tusaale ahaan, chelation of lignosulfonate oo leh ion birta, chromium ion, iwm ayaa loo isticmaali karaa in lagu diyaariyo dhoobada qodista saliidda khafiifka ah, iyo chelation waxay sidoo kale ka dhigtaa inay yeelato daxal gaar ah iyo saamaynta xannibaadda miisaanka, taas oo loo isticmaali karo wakiilka daaweynta biyaha.
4.Shaqada isku xidhka ayaa ku jirta dhirta dabiiciga ah. Sida xabagta, lignin waxa loo qaybiyaa hareeraha fiber-ka iyo inta u dhaxaysa fiilooyinka yaryar ee gudaha fiber-ka, oo lagu dhejiyay fiilooyinka iyo fiilooyinka yaryar, taas oo ka dhigaysa qaab-dhismeedka qalfoofka xooggan. Sababta aysan geeduhu u dhici karin tobanaan mitir ama xitaa boqolaal mitir ayaa ah sababtoo ah adhesion of lignin. Lignosulfonate oo ka soocay khamriga madow waa la beddeli karaa si loo soo celiyo xoogga koollada ee asalka ah, iyo sonkorta iyo waxyaabaha ka soo baxa ee khamriga qashinka ah waxay gacan ka geysan karaan kor u qaadida awooddooda dhejiska iyada oo loo marayo saameyn wadajir ah.
Waxqabadka 5.Foaming Waxqabadka xumbada ee lignosulfonate waxay la mid tahay kuwa guud ee surfactants polymer, kaas oo leh sifooyinka awoodda xumbo hooseysa, laakiin xasilloonida wanaagsan ee xumbo, iyo waxqabadka xumbo ee lignosulfonate waxay saameyn gaar ah ku yeelan doontaa waxqabadkeeda codsi. Tusaale ahaan, marka loo isticmaalo sida biyo-yaraynta biyaha la taaban karo, dhinaca kale, sababtoo ah sifaynta goobooyin ay dhaliso lignosulfonate, dareeraha shubka ayaa kordhin doona shaqadana way fiicnaan doontaa; Dhanka kale, hantida xumbada ayaa kordhin doonta hawo-gelinta hawada waxayna yareyneysaa xoogga shubka. Marka loo isticmaalo sida hawo entraining biyaha wakiilka yareeya, waxaa faa'iido leh in la hagaajiyo caabbinta dhaxan iyo adkeysiga ee shubka.
Waqtiga boostada: Meey-08-2023
