Mfundo Yogwirira Ntchito ya Scouring Agent

Scouring ndondomeko ndi zovuta physicochemical ndondomeko, kuphatikizapo ntchito kulowa, emulsifying, kubalalitsa, kutsuka ndi chelating, etc.scouring wothandiziramu scouring ndondomeko makamaka monga mbali zotsatirazi.

 1.Kunyowa ndikulowa.

Kulowa ndikofunikira pakukolopa.Choyamba, mu ndondomeko yathonjekukula, asidi galacturonic wa pectin pang'onopang'ono kuphatikiza Ca²⁺ndi Mg²⁺m'madzi apansi kupanga mchere wa pectin womwe susungunuka m'madzi komanso wovuta kuumitsa.Pectin imagawidwa pakhoma loyamba la cellulose pamwamba ndipo imalepheretsa hygroscopicity ya khoma lamkati lachiwiri, lomwe limapanga 98% ya cellulose.Zinthu za waxy mu ulusi wa thonje ndi dothi lamafuta muzotsalira za saizi zimapangitsa kuti zikhale zovuta kuti scouring alowe mu ulusi.ulusimipata yokhala ndi ma capillaries olumikizana amitundu yosiyanasiyana.Kachiwiri, scouring ndondomeko ikuchitika mu njira ya caustic koloko pa ndende inayake.Chifukwa kupsinjika kwamadzi a caustic soda solution ndikwambiri, ndikovuta kuti scouring agent alowe.Pofuna kupanga scouring bwino, m'pofunika kupaka ulusi ndi kukonza mawonekedwe katundu pakati pa yankho ndi CHIKWANGWANI, amene ayenera kuwonjezera surfactant woyenera amene angathe kuchepetsa mavuto padziko yankho ndi interfacial kukangana pakati pa yankho ndi CHIKWANGWANI.Kotero kuti CHIKWANGWANI chikhoza kukhudzana ndi scouring agent mokwanira komanso bwino, kufulumizitsa kunyowetsa ndikulowa.

Malinga ndi chiphunzitso choyambirira cha kunyowetsa ndi kulowa, mwa kutsatsa pa mawonekedwe, ma surfactants amatha kuchepetsa kwambiri γLG ndi γLS, kupangitsa kunyowetsa kukhala kosavuta.Panthawi imodzimodziyo, imatha kuonjezera kuthamanga kwa madzi m'kati mwa capillary kukwera, komwe kumapindulitsa kuti scouring alowe mkati mwa ulusi.Ubwino wa scouring agent umadalira kwambiri mphamvu yake yochepetsera kugwedezeka kwa pamwamba ndi kulowera.

2.Kutsuka zotsukira.

Ntchito yotsuka zotsukira mu scouring ndizovuta kwambiri.Choyamba, iyenera kufooketsa mphamvu yomatira pakati pa zinthu za waxy saponified ndi zinthu zamafuta ndi nsalu ndikuchepetsa mawonekedwe pang'onopang'ono.Kenako imachotsa mafuta pansalu pogwiritsa ntchito makina ndikuyika mu emulsion yamadzi amafuta kuti isadetsedwenso.Ma surfactants osagwiritsa ntchito ma ionic nthawi zambiri amakhala ma emulsifiers abwino kwambiri.Ngakhale anionic surfactants adzapanga awiri elekitirodi wosanjikiza pa mawonekedwe a sera / madzi kuteteza particles mafuta clumping pamodzi, kuti n'kopindulitsa kupanga khola emulsion dongosolo.Kachiwiri, imayenera kumwaza kuwonongeka kwa alkaline kuti zisawonongeke, zomwe zingagwiritse ntchito ntchito yobalalitsa ya surfactants, komanso ntchito ya zinthu zina za inorganic kapena organic chelating dispersing agents.

Mtundu umodzi kapena kapangidwe ka surfactant ndizovuta kukwaniritsa zomwe zili pamwambazi panthawi imodzi, chifukwa chake ndikofunikira kusakaniza mitundu yoposa iwiri yosiyana ndi mapangidwe osiyanasiyana a surfactants.Ikhoza kusintha bwino mitundu yawo, mapangidwe ake ndi malamulo ake kuti apereke Hydrophile Lipophilic Balance (HLB) kuti akwaniritse zofunikira za emulsifying dothi lamafuta, ndipo ali ndi micellar voliyumu yokwanira ndi CMC yotsika komanso kupsinjika kwapamwamba (γCMC).Zidzapangitsa dongosolo la scouring kuti likhalebe ntchito yabwino kwambiri yonyowetsa komanso emulsification yabwino, kufalikira ndi kuyeretsa katundu.

Yogulitsa 11025 Degreasing & Scouring Wothandizira Wopanga ndi Wopereka |Zatsopano (textile-chem.com)