Uburyo bwo kubyimba bwahydroxyethyl selileni ukongera ubukonje binyuze mu gushiraho imiyoboro ya hydrogène intermolecular na intramolecular, kimwe na hydration hamwe nuruhererekane rwiminyururu ya molekile. Kubwibyo, uburyo bwo kubyibuha bwa hydroxyethyl selile irashobora kugabanywamo ibice bibiri: kimwe ninshingano za hydrogène intermolecular na intramolecular. Inzira nyamukuru ya hydrophobique ihuza na molekile zamazi zikikije binyuze mumigozi ya hydrogène, itezimbere ubwiza bwa polymer ubwayo. Ingano yibice bigabanya umwanya wo kugenda kubuntu kubuntu, bityo bikongerera ubwiza bwa sisitemu; icya kabiri, binyuze mu kwizirika no gufunga iminyururu ya molekile, ingoyi ya selile iri muburyo butatu bwimiterere y'urusobekerane muri sisitemu yose, bityo bikazamura ubwiza.
Reka turebe uburyo selile igira uruhare mukubika neza kwa sisitemu: icya mbere, uruhare rwimigozi ya hydrogène igabanya umuvuduko wamazi yubusa, igira uruhare mukubungabunga amazi, kandi ikagira uruhare mukurinda gutandukanya amazi; icya kabiri, imikoranire yumunyururu wa selulose Kwizirika kumurongo bigizwe numuyoboro uhuza cyangwa ahantu hatandukanye hagati yibibara, ibyuzuza nuduce twa emulsiyo, birinda gutura.
Nibihuza byuburyo bubiri bwibikorwa byavuzwe haruguruhydroxyethyl selilekugira ubushobozi bwiza cyane bwo kuzamura ububiko. Mu gukora amarangi ya latex, HEC yongeyeho mugihe cyo gukubita no gutatanya yiyongera hamwe no kwiyongera kwingufu zo hanze, umuvuduko wa shear umuvuduko ukabije, molekile zitondekanye muburyo butondekanye bujyanye nicyerekezo gitemba, kandi sisitemu yo guhinduranya lap hagati yiminyururu ya molekile irasenyuka, byoroshye kunyerera hamwe, sisitemu yo kugabanuka iragabanuka. Kubera ko sisitemu irimo ibintu byinshi bindi bigize ibice (pigment, yuzuza, emulisiyo), iyi gahunda itondekanye ntishobora kugarura imiterere ifatanye yo guhuza no guhuzagurika kabone niyo yashyizwe mugihe kirekire nyuma yo gusiga irangi. Muri uru rubanza, HEC yishingikiriza gusa kuri hydrogen. Ingaruka zo gufata amazi no kubyimba bigabanya ubukana bwaHEC, nintererano yiyi dispersion leta mububiko bwa sisitemu nayo igabanuka uko bikwiye. Nyamara, HEC yasheshwe yakwirakwijwe kimwe muri sisitemu ku muvuduko muke mu gihe cyo gucika intege, kandi imiterere y'urusobe rwakozwe no guhuza iminyururu ya HEC ntabwo yangiritse cyane. Gutyo rero kwerekana ububobere buke no kubika neza. Ikigaragara ni uko icyarimwe ibikorwa byuburyo bubiri aribwo buryo bwo kubyimba neza kwa selile no kwemeza ububiko. Mu yandi magambo, imiterere ya selile yasheshwe kandi itatanye mu mazi bizagira ingaruka zikomeye ku ngaruka zabyo ndetse n’uruhare rwayo mu kubika neza.
Igihe cyo kohereza: Apr-25-2024