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http://muchong.com/bbs/viewthread.php?tid=4643031 In a typical synthesis, powdery GO and UHMWPE (6 g) were firstly added into toluene solvent (290 ml). After ultrasonic treatment using an ultrasonic pole at 600 W for 1 h in an ice bath, the homogeneous mixture was placed into a round bottomed flask in a oil bath, heated up to 130¡æ, and kept at this temperature for 3 h under stirring to accelerate mixing. Then, the mixture was dried at 70C in vacuum for 12 h to remove the toluene. Ñõ»¯Ê¯Ä«Ï©ºÍUHMWPE»ìºÏÖÆ±¸¸´ºÏ²ÄÁÏ£¬ÎÒ¼¸¸öÎÊÌâÏëѧϰÏ 1.ÈܼÁtolueneµÄ×÷Ó㬾ÍÊÇΪÁË·ÖÉ¢Âð£¬ÆäËûÈܼÁÐв»ÐÐ 2. ³¬ÉùΪʲôҪÔÚ in an ice bath£¬ 3.³¬ÉùºóΪʲôÓÖÒªÔÚ oil bathÖмÓÈȵ½130¡æ Õâ¸öÄ¿µÄ²»¾ÍÊÇΪÁË»ìºÏÂð£¬Ö±½ÓÔÚÈܼÁ½Á°è»ìºÏ£¬¸ÉÔï²»¾ÍÐÐÁËÂð£¬Ð»Ð»Ö¸µ¼ |
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2012-06-19 18:58
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