陰離子型水性PU與聚丙烯酸酯乳液摻合之電著 塗裝研究

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Title:	陰離子型水性PU與聚丙烯酸酯乳液摻合之電著塗裝研究
Authors:	張育誠;陳幹男
Contributors:	淡江大學化學學系
Keywords:	聚氨基甲酸酯;聚丙烯酸酯;電化學反應;電著塗裝膜;交聯反應;電極沈積;Polyurethane;Polyacrylate;Electrochemical Reaction;Electrodeposited Film;Crosslinking Reaction;Electrodeposition
Date:	1991-06
Issue Date:	2013-04-09 11:40:07 (UTC+8)
Publisher:	新竹市 : 清華大學化學工程研究所
Abstract:	在製備之陰離子水性PU分散液及分別加入線型或可加熱架橋型之聚丙烯酸酯在不同直流電壓下進行電著塗裝的電化學反應。將聚合物之薄膜塗裝在鍍鋅之鋼片上,並在 120.degree.C之烘箱加熱30分鐘,此乾燥的薄膜利用霍氏紅外光譜,全反射式紅外光,微差熱卡計,電子顯微鏡及吸水性等方式評估觀察。從試驗的結果顯示電著塗裝的塗膜量隨著使用電壓、電流以及聚合物離子當量而改變,並發現電著塗裝的過程中發生若干不同的電化學反應。DSC ,電子顯微鏡和吸水性質等證實此電化學反應過程,其中產生某些程度的架橋反應。 The prepared aqueous dispersions of anionic polyurethanes were mixed with polyacrylates latex (both linear and thermal curable) which are commercially available. Each of individual and the blends of each were carried out the processes of electrodeposited polymeric films on atinplated steel and baked in the oven at 120.degree.C for 30 minutes. The dried films were evaluated with FT-IR, ATR-IR, DSC , and SEM. Water absorptions both in pure water and alkaline solution. The testing results showed that the quantities of electrodeposited films were depended upon the applied voltages and current, as well as the equivalents of polymeric ionmers. There were some degrees of cross-linking reactions Kolbe reaction took place during the electrochemical reaction.
Relation:	第十四屆高分子研討會論文專輯(第七卷第一冊)=Proceedings of the 14th ROC Polymer Symposium 1991 (I)，頁438-441
Appears in Collections:	[Graduate Institute & Department of Chemistry] Proceeding

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