%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp; 隨著石化工業(yè)的迅速發(fā)展，聚苯乙烯泡沫塑料（FPS）被大規(guī)模地生產(chǎn)及應(yīng)用，從而造成了廢FPS污染環(huán)境的問題。近年來，人們對廢FPS進(jìn)行回收利用的研究有了很大的進(jìn)展，其中有：用其制建筑用密封膠、涂飾劑、生產(chǎn)隔音保溫磚等。我們以廢FPS為主要原料制備出一種建材用膠粘劑，其性能較好。%26nbsp;
?。?）原料及試劑%26nbsp;
廢FPS、甲苯、乙酸乙酯、鄰苯二甲酸二丁酯、順丁烯二酸酐、丙烯酸、正丁醇、OP乳化劑。%26nbsp;
?。?）儀器%26nbsp;
電磁攪拌器、NDJ-7型旋轉(zhuǎn)式粘度劑、WXJ-1型強(qiáng)度測定儀、501超級恒溫槽、破碎機(jī)。%26nbsp;
?。?）制備方法%26nbsp;
將一定量的廢FPS破碎至粒度為0.5~1cm，置于250毫升燒杯中，加入一定量的水，再加入適量的清洗劑，攪拌清洗，然后用水反復(fù)漂洗干凈，在烘箱中烤干，備用。%26nbsp;
取100毫升乙酸乙酯、50毫升甲苯于250毫升的三頸燒瓶中，加入102克烘干后的廢FPS，同時開動攪拌器，使廢FPS全部溶解，此時溶液呈無色透明狀。將三頸燒瓶移入76~78度的恒溫槽中水浴，加熱攪拌30分鐘，然后加入10毫升鄰苯二甲酸二丁酯反應(yīng)一小時。稱取2.5克順丁烯二酸酐，溶于50毫升水中配成溶液，將其緩慢加入到三頸燒瓶中，待溫度升至78度后加速攪拌，再逐滴加入4毫升丙烯酸，70分鐘后加入7毫升OP乳化劑，加熱攪拌20分鐘，加入10毫升正丁醇，繼續(xù)攪拌30分鐘，冷至室溫即得膠粘劑。%26nbsp;
膠粘劑的性能指標(biāo)如下：%26nbsp;
外觀%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;淡黃色粘稠狀液體%26nbsp;
固含量%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;23%%26nbsp;
粘度過難關(guān)%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26gt;10000cP%26nbsp;
pH%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;5.0~6.0%26nbsp;
干燥時間%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;30分鐘%26nbsp;
耐水試驗%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;8天無變化%26nbsp;
耐10%HCl試驗%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp; 8天無變化%26nbsp;
耐10%NaOH試驗%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp; 8天無明顯變化%26nbsp;
粘合強(qiáng)度%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;%26nbsp;最大為18N/cm2%26nbsp;
回收廢FPS制建材用膠粘劑，不僅可解決環(huán)境污染問題，又可產(chǎn)生很好的經(jīng)濟(jì)效益。
