Iintlobo ezityebileyo kunye neempawu
I-Cellulosic thickeners ine-high-thiening esebenzayo, ngakumbi ukujiya kwesigaba samanzi; banezithintelo ezincinci kwiifom zokugcoba kwaye zisetyenziswa ngokubanzi; zingasetyenziswa kuluhlu olubanzi lwe-pH. Nangona kunjalo, kukho izinto ezingeloncedo ezinje ngomgangatho ongemhle, ukutshiza ngakumbi ngexesha lokutyabeka ngerola, uzinzo olulambathayo, kunye nokuba semngciphekweni wokuthotywa kwe-microbial. Ngenxa yokuba ine-viscosity ephantsi phantsi kwe-shear ephezulu kunye ne-viscosity ephezulu phantsi kwe-static kunye ne-shear ephantsi, i-viscosity iyanda ngokukhawuleza emva kokugquma, oko kunokuthintela ukugoba, kodwa kwelinye icala, kubangela ukulinganisa okungahambi kakuhle. Uphononongo lubonise ukuba njengoko ubunzima be-molecular ye-thickener bunyuka, ukutshiza kwepeyinti ye-latex nako kuyanda. I-Cellulosic thickeners ithanda ukutshiza ngenxa yobunzima bayo obukhulu bemolekyuli. Kwaye ngenxa yokuba i-cellulose ingaphezulu kwe-hydrophilic, iya kunciphisa ukuxhathisa kwamanzi kwifilimu yepeyinti.
i-cellulosic thickener
Izityebi zeasidi yePolyacrylic zinokuqina okuqinileyo kunye neempawu zokulinganisa, kunye nokuzinza okuhle kwebhayoloji, kodwa zibuthathaka kwi-pH kwaye zinokumelana namanzi okulambathayo.
polyacrylic thickener
Isakhiwo esihlangeneyo se-associative polyurethane thickener sichithwa phantsi kwesenzo se-shear force, kwaye i-viscosity iyancipha. Xa i-shear force iyanyamalala, i-viscosity inokubuyiselwa, enokuthintela i-phenomenon ye-sag kwinkqubo yokwakha. Kwaye ukubuyiswa kwayo kwe-viscosity kune-hysteresis ethile, ehambelana nomgangatho wefilimu yokugqoka. Ubunzima bemolekyuli (amawaka ukuya kumashumi amawaka) ye-polyurethane thickeners ingaphantsi kakhulu kunobunzima bemolekyuli (amakhulu amawaka ukuya kwizigidi) zeentlobo ezimbini zokuqala ze-thickeners, kwaye aziyi kukhuthaza ukutshiza. Iimolekyuli ze-polyurethane thickener zinamaqela amabini e-hydrophilic kunye ne-hydrophobic, kwaye amaqela e-hydrophobic anobudlelwane obuqinileyo kunye ne-matrix yefilimu yokugqoka, enokuphucula ukuxhathisa kwamanzi kwifilimu yokugqoka.
Ixesha lokuposa: Mar-24-2023