胶粘剂的化学分析方法（Methods for chemical analysis of adhesives）.doc

胶粘剂的化学分析方法（Methods for chemical analysis of adhesives） Adhesives - chemical analysis - square discussion - Weldon adhesive forum adhesives, adhesives, adhesives formulations, free formulations, coating formulations, ink formulations, national standards, US patents, papers, papers, downloads - Powered, by, Discuz! Enter your search term and submit the search form Web Cjk539 quit message, member search tag, my control panel invites registration props, help Weldon adhesive forum raquo, square discussion raquo, chemical analysis method of adhesive ? ? a | a ? ? new topic released poll published commodity reward launches Chemical analysis of printing adhesive recommended for information collection subscription This topic is moved by admin at 10:51 2007-9-3 Weldon77 Weldon77 Super Moderator Post 1291, essence 28 points 316 gold coins, 10219 engaged in industry adhesives, online time 179 hours, personal space short message, plus friends, current offline 1# large and medium-sized Published in 2007-7-9 08:45, see only the author Chemical analysis of adhesives Chemical analysis is easy to operate, time consuming, quick to react, and immediate results are known. Therefore, the method can be used for the simple determination of the category of the adhesive and when the requirement is not high. Polyvinyl acetate emulsion adhesive A small amount of glue or glue film is placed on the plate, plus 6% lanthanum nitrate solution and 1 drops of 0.01mol/L iodine ethanol solution, plus 1 drops of concentrated ammonia water. If acetic acid is present, the color is shown. It can be proved to be polyvinyl acetate emulsion. Take a small amount of glue dipped in 1% resorcinol concentrated hydrochloric acid solution, take it out in a few minutes, and then compress between the filter paper. After 10 ~ 15min, if there is rose color, then it can be found that vinyl acetate exists. Takes a little glue or adhesive film in a test tube, add iodine boric acid solution (potassium iodide and iodine 0.1