Ukudla okunamakamenti okuphansi okuvuthiwe kubhekisele ekudleni okusemathinini ngenani le-PH kukhulu kune-4.6 nomsebenzi wamanzi omkhulu kune-0.85 ngemuva kokuthola okuqukethwe. Imikhiqizo enjalo kumele ihlanzwe yindlela enenani elikhulu kakhulu kune-4.0, njengokufaka inzalo eshisayo, izinga lokushisa livame ukusetshenziselwa inzalo ephezulu kakhulu (izinga lokushisa eliphakeme lesikhathi) ngaphezulu kwe-100 ° C. Ukudla okwenziwe ngenani le-PH yenani elingaphansi kuka-4,6 kungukudla okusemathinini. Uma kufakwa inzalo ngokushisa, izinga lokushisa livame ukudinga ukufinyelela ku-100 ° C ethangini lamanzi. Uma i-monomer ekheniwe ingahle igingqiwe ngesikhathi sokubulala inzalo, izinga lokushisa lamanzi lingaba ngaphansi kuka-100 ° C, futhi okuthiwa okushiwo okuphansi kuthathwe. Indlela eqhubekayo yokubulala inzalo. Amaphethili ajwayelekile ahleliwe, ama-citrus ahlanganisiwe, uphayinaphu ekheniwe, njll. Ungowokudla kwe-acid ekheniwe, nazo zonke izinhlobo zemfuyo ekheniwe, izinkukhu, imikhiqizo ekheniwe eluhlaza (ubhontshisi ohlaza okotshaniwe, ubhontshisi ohlaza okotshaniwe, njll.) Ungowokudla okunamakheni akopishiwe. Amazwe amaningi nezifunda emhlabeni zinamazinga noma izimiso zokucaciswa kokukhiqizwa kokudla kwamakhemikhali. Ngo-2007, izwe lami likhiphe i-GB / T20938 2007 "Umkhuba omuhle wokudla okusemathinini", okubeka imigomo nezincazelo zamabhizinisi okudla asemathinini, ukuqeqeshwa kwekhwalithi, ukugcinwa kwenqubo, ukugcinwa komkhiqizo, ukugcinwa kwamarekhodi, ukuphathwa kwezikhalazo kanye nokuphendula komkhiqizo kanye nokuphendula komkhiqizo kanye nokuphendula komkhiqizo. Ngaphezu kwalokho, izidingo zobuchwepheshe zohlelo lokufaka inzalo lokudla okuphansi kwe-acid kuchazwe ngokukhethekile.
Isikhathi sePosi: Jun-02-2022