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鎽樿锛氶珮鑱氱墿鐨勬€ц兘鍙栨焙浜庣祼(ji茅)妲�(g貌u)銆傛湰鏂囦互鍏╃ó鑻箼鐑�- 涔欑儻- 涓佺儻- 鑻箼鐑祵娈靛叡鑱氱墿(SEBS)鐐虹爺绌跺皪璞�锛岄€氶亷绱呭銆佹牳纾�銆佸樊绀烘巸鎻忛噺鐔辨硶鍜屽嫊鎱�(t脿i)鍔涘(xu茅)鍒嗘瀽灏嶅叾绲�(ji茅)妲�(g貌u)閫茶浜嗗墫鏋�锛屽苟灏嶅叾鍒跺倷鐨勫ぇ杓告恫鑶滃埗鍝佺殑褰㈣矊鍜屾€ц兘閫茶浜嗚〃寰�銆傜祼(ji茅)鏋滆〃鏄�锛�SEBS 涓‖娈靛惈閲�銆佽粺娈垫垚鍒嗗強涓嶉＝鍜屽害閮芥渻灏嶅叾鍒跺搧鎬ц兘鐢�(ch菐n)鐢熷奖闊�銆�
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鍏�銆�SEBS鏀规€х€濋潚鐨勫埗鍌欒垏鎬ц兘鐮旂┒1651锛�
Preparation and properties of SEBS modified asphalt
WANG Ming1,YU Hongwei 1,MA Haihua2,WEI Zhen1
(1.Department of Chemistry and Material,Naval University of Engineering,Wuhan 430033,China;2.Pingdingshan Environmental Monitoring Centre Station , Pingdingshan 467000 , China)
Abstract:Modified asphalt was successfully prepared based on 70# bitumen with polymer SEBS prepared by the selective hydrogenation of thermoplastic elastomer SBS as asphalt modifier,the effects of polymer SEBS content and the shear temperature on the modified asphalt of low temperature ductility,softening point and penetration were investigated.And the optimum shear temperature and additive content of SEBS also were determined.Finally,through the change in the microstructure observed by SEM,the mechanism of modified asphalt was explained.Results of the trial indicated that modified asphalt has the best comprehensive perbance and the lowest cost of economic when shear temperature was 170鈩�and the content of polymer SEBS was 5%.
Key words:SBS;asphalt;shear temperature;SEM
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