Experiments showed organic acid catalysis could increase TI-PS fraction content of modified pitches and the same result could be get by changing component and structure of pitches.
实验表明，有机酸催化可提高沥青ti - PS组份的含量，而改变原料沥青的组成与结构也可得到同样效果。
Esterification is a common organic reaction, usually with the catalysis of acid carboxylic acid and alcohol produce ester.
酯化反应是常见的有机反应，通常是在酸催化作用下由羧酸与醇反应生成酯。
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