The comparison of FD catalyst with the oversea commercial catalysts shows that FD catalyst has good initial activity and excellent thermal aging resistance.
将FD三效催化剂与国外现有的商品催化剂进行了比较，结果表明FD催化剂具有良好的初活性和优异的高温耐老化性能。
Based on asphalt, some structural modifiers were used to develop the sealing agent for the enhancement of the thermal stability, cohesion and aging resistance.
本文以沥青为基料，采用结构改性剂，研制了具有优良热稳定性、粘着力及耐老化性能好的封口剂。
Based on asphalt, some structural modifiers were used to develop the sealing agent for the enhancement of the thermal stability, cohesion and aging resistance.
本文以沥青为基料，采用结构改性剂，研制了具有优良热稳定性、粘着力及耐老化性能好的封口剂。
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