Iindidi ze-Silicone yeoli ye-Textile Auxiliaries

Ngenxa yokusebenza kakuhle kolwakhiwo lwe-organicioli ye-silicone, isetyenziswe ngokubanzi kwi-textile softening finishing.Iindidi zayo eziphambili zezi: isizukulwana sokuqala ioli ye-silicone ye-hydroxyl kunye neoli ye-silicone ye-hydrogen, isizukulwana sesibini i-amino silicone oil, ukuya kwisizukulwana sesithathu i-oyile ye-silicone ye-block.Njengoko imfuno yabantu yokubamba iye yaphucuka, ioli ye-silicone ye-organic iye yadlula amashumi eminyaka yokuphucula.

I-1.Hydroxyl ioli ye-silicone

Isakhiwo esiphambili se-oyile ye-silicone ye-hydroxyl yi-polymer ehambelanayo kunye namaqela e-hydroxyl kuzo zombini iziphelo kunye ne-silicon ye-silicon njengekhonkco eliphambili.Indlela eqhelekileyo yokudibanisa yileyo yenziwa yi-hydrolyzing polycondensation ye-dimethyl dichlorosilane.Ngenxa yamandla ayo aphantsi komhlaba, i-polarity ebuthathaka kunye ne-adsorption ebuthathaka kwi-substrate surface, ukusetyenziswa okuqhelekileyo kweoli ye-silicone ye-hydroxyl kufuna ubunzima obuphezulu be-molecular ukuba ibe nefuthe elihle lesicelo.Ke ngoko, ngokubanzi ioli ye-silicone ye-hydroxyl esetyenziswa njengokugqibaisithambisiyipolima enobunzima obuphezulu bemolekyuli.Kuvela i-drawback yokuba njenge-oyile ye-silicone, ngenxa yamandla aphantsi komhlaba kunye ne-dispersibility embi kakhulu yamanzi, umlinganiselo ophezulu we-emulsifiers kunye nomatshini wokucheba kunye nokusabalalisa okuphakamileyo kuyafuneka ukuze kufakwe kwaye kuyisasaze kwii-microemulsions ezingcono.Kodwa phezu kwako nje oku, ukuzinza kwayo ukwaluphala kusekubi.Kuza kubakho i-emulsion stratification phenomenon emva kwexesha elide ibekwe.

I-2.Ioli ye-silicone ye-Hydrogen

Isakhiwo esiphambili se-hydrogen ioli ye-silicone i-polysiloxane ene-silicon-hydrogen bond isasazwe ngokulinganayo kwiqela le-silicon oxygen chain.Iindlela eziqhelekileyo zokudibanisa ziquka i-hydrolytic polycondensation ye-methyl hydrodichlorosilane kunye ne-ring-opening polymerization ye-hydrosiloxane ring body.Ngenxa yokuba uzinzo lwe-silicon-hydrogen bond ihlwempuzekile, kulula ukuyikhupha kwaye ngoko kulula ukuyibhengeza ngamaqela e-polar kwizinto ezilukiweyo.Ke inepropathi ye-adsorptive engcono.Inokusebenza kakuhle kwesicelo kwiifiber ze-cellulose kunye neeprotheni zeprotheyini, ngelixa impembelelo embi kwimicu yekhemikhali.Ngokufanayo neoli ye-silicone ye-hydroxyl, ukusebenza kwayo kwe-emulsifying ayilungile kwaye ukuzinza kwayo kubi.Ukuba umxholo we-hydrogen uphezulu kakhulu ngexesha lokusetyenziswa, kulula ukukhokelela ekubeni umxholo we-hydrogen onemigca uphezulu kakhulu, onobungozi kwindawo yokushisa ephezulu xa ubeka.

3.Amino ioli ye-silicone

Ulwakhiwo oluphambili lweioli ye-amino silicone isa i-polysiloxane equlethe iqela le-amino emacaleni emva kwe-polymerization ngokongeza i-amino silane yokudibanisa i-agent.Ukuthamba kunye ne-dispersibility yamanzi ye-polysiloxane iphuculwe kakhulu ngenxa ye-adsorption efanelekileyo kunye nokukwazi ukubopha iqela le-amino kwilaphu kunye ne-polarity efanelekileyo.Ngokukodwa kumalaphu e-cellulose fibers, inesiphumo esihle kakhulu sokusetyenziswa.Ngokulungelelanisa ixabiso le-ammonia, uhlobo lwe-amino silane yokudibanisa kunye nesisindo se-molecular yeoli ye-amino silicone inokulungiswa.Oko kunokulungiselela iziphumo ezityebileyo zesicelo.Nangona kunjalo, ngenxa yokuba ikhonkco layo eliphambili lisesisakhiwo se-siloxane, ngoko ke ifuna i-emulsifying agent engaphezulu ukufezekisa isiphumo esingcono se-emulsifying.Kwangaxeshanye, kuba umsebenzi we-amino we-amino silicone oyile uphezulu kwaye ikwakwithambo elisecaleni.Ngoko ke kunzima ukuyisusa kwilaphu emva kwe-adsorption.Oko kuya kuba nzima ukususa kwi-textile yokudaya kunye nenkqubo yokugqiba xa ifuna ukuguqula umbala, ukuphelisa imibimbi okanye amabala e-silicone.Kwakhona ukuxhathisa kumanzi anzima okanye amanzi e-alkali ye-emulsion yawo zombini buthathaka.

4.Vimba ioli ye-silicone

Isakhiwo esiphambili se-oyile ye-silicone ye-block kukuba kwikhonkco ephambili ye-polysiloxane ifakwe, ifakwe kwaye ifakwe i-polymerized kunye namacandelo athile e-hydrophilic polyether chain.Ngendlela yokuthintela, ukukhwabanisa kunye ne-polymerizing kunye necandelo le-amino chain, eliphucula ukusebenza kwe-hydrophilic kunye nepropati ye-emulsifying ye-siloxane.Ngokulungelelanisa umlinganiselo, iintlobo kunye nobunzima be-molecular yamacandelo amathathu ekhonkco, kunokulungiselela iimveliso ezininzi.Ukugqithiswa kwayo okungcono kwe-hydrophilic, ifaneleke ngakumbi ukuthomalalisa ukugqiba imicu yemichiza, kunye nokusebenza okungcono kokuguqula umbala kunye nokususa.Kuba iqela le-amino lele-ammonia, i-tertiary ammonia kunye ne-quaternary ammonia, akukho lula ukuba tyheli.Kwakhona sisithambiso esidumileyo kuphando lohlengahlengiso kule mihla.

 

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