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Abubuwan da aka samo asali na alkyl polyglycoside.

Don bayyana kaddarorin abubuwan da suka samo asali na alkyl polyglycoside, an yi rikodin tashin hankali / karkatar da hankali da mahimmancin micelle (cmc) da ƙimar tashin hankali saman tudu sama da cmc daga gare su.An binciko tashin hankali na tsaka-tsakin a kan abubuwa biyu na samfur: octyl dodecanol da decane-an bincika su azaman ƙarin sigogi.Ana nuna ƙimar cmc da aka samu daga waɗannan maƙallan a hoto na 8. bayanan da suka dace don C12 alkyl monoglycoside da kuma aC 12/14An haɗa alkyl polyglycoside don kwatanta.Ana iya ganin cewa alkyl polyglycoside glycerol ethers da carbonates suna da ƙimar cmc mafi girma fiye da alkyl polyglycosides na tsayin sarkar daidai yayin da ƙimar cmc na monobutyl ethers sun ɗan yi ƙasa da na alkyl polyglycosides.

Hoto8, ƙimar cmc na abubuwan da suka samo asali na polyglycoside

An gudanar da ma'aunin tashin hankali na tsaka-tsakin fuska tare da ɗigowar tensiometer na Kri.iss.Don daidaita yanayin aiki, an yi ma'aunin a cikin ruwa mai wuya (270 ppm Ca: Mg = 5: ll a cikin ƙwayar surfactant na 0.15 g / l kuma a SO Hoto 9 yana nuna kwatancen tashin hankali na interfacial na C.12Abubuwan da aka samo asali na alkyl polyglycoside akan octyl dodecanol.The C12mono[1]butyl ether yana da mafi girman tashin hankali na tsaka-tsaki kuma saboda haka mafi ƙarancin ayyukan tsaka-tsakin yayin da C.12monoglycerol ether yana da mahimmanci a matakin C12polybutyl ether.The C12alkyl polyglycoside an haɗa don kwatanta ta'allaka ne a matakin ƙarshe na biyu na alkyl polyglycoside da aka ambata.Gabaɗaya, ƙimar tashin hankali na tsaka-tsaki a kan octyl dodecanol suna da girma sosai.Wannan yana nufin cewa, don aikace-aikace masu amfani, yana da mahimmanci don tabbatar da cewa gaurayawan surfactant da aka yi amfani da su suna da haɗin kai ga mai.

Hoto na 9, Rage tashin hankali tsakanin octyl dodecanol

Sakamakon gwajin kumfa kamar Hoto 10. An auna halayen kumfa na alkyl polyglycoside monoglycerol ethers da monocarbonates ta hanyar kwatanta da C.12alkyl polyglycoside don ƙimar taurin ruwa guda biyu idan babu ƙasa mai kitse.An gudanar da ma'auni daidai da DIN 53 902. C10kuma C12alkyl polyglycoside monoglycerol ethers ya samar da ƙarar kumfa mafi girma fiye da C12alkyl polyglycoside.Kwanciyar kumfa yana da girma sosai a yanayin C12monoglycerol ether fiye da na C10 wanda aka samu a 16°dH.The C14Alkyl polyglycoside monoglycerol ether ba ya kwatanta da C10kuma C12 Abubuwan da aka samo a cikin ikon kumfa kuma, gabaɗaya, ƙima sun fi C12alkyl polyglycoside.Mono-carbonates tare da tsayin sarkar alkyl n na 8 da 12 an bambanta su da ƙananan kumfa, kamar yadda za a yi tsammani daga abin da aka samu na hydrophobic alkyl polyglycoside.

Hoto na 10, ƙimar kumfa na abubuwan da aka samo asali na alkyl polyglycoside


Lokacin aikawa: Afrilu-26-2021