Oxidized W ax M odified by Amidation SONG Lei ~, ZH ANG Jian—yu , CH EN M ing—qiang , XU Bin。 (1.Department of Chemical Engineering,Anhui Uninersity of Science and Technology,Huainai 232001, China;2.Department of Energy Chemical Engineering,East China University of Science and Technology,Shanghai 200237,China) Abstract:0xidized wax is modified by amidation reaction to produce acylamide with better physical and chemical properties. The effect of ratio of raw materials and temperature of reaction on product’S properties was studied. The properties of product reach to the requirements that penetration degree at 25。C (ASTM D一5—52) should be less than 4 and acid number is not more than 6 mg/g while (hexamethylendiamine) (hardening agent): (oxidized wax)= 29:94.7:78.Temperature of reaction and range of time in first stage are 1 50 。C and 3 h,and then temperature increased to 1 90 。C and another 3 h of reaction is needed Acylamide functional group is found in infrared spectrum. Key words:oxidized wax;hexamethylendiamine;acylamide;penetration number;hardening agent