pour point depressant

常見例句

At the delivery of crude oil process, the main research of the pour point depressant for crude oil the role of low-temperature fluidity.
在原油的輸送過程中，主要研究了降凝劑對原油低溫流動性的作用。
The working principle of pour point depressant and the influencing factors on its effect are introduced, as well as the main types of domestic products and their application situation.
介紹了降凝劑的作用機理、降凝效果的影響因素，以及目前中國使用的主要國產(chǎn)降凝劑品種及應(yīng)用現(xiàn)狀。
The characteristic groups of polymeric pour point depressant(PPD)were analyzed by FT-IR and NMR techniques. The crystallization properties of various types of wax and PPD were measured by XRD.
采用紅外光譜儀、核磁共振波譜儀對聚合物的合成特征基團進行了表征，并采用X射線衍射儀對不同型號蠟及降凝劑的結(jié)晶性能進行了分析測試。