a chemical agent capable of reducing the surface tension of a liquid in which it is dissolved 同义词：wetting agent, wetter, surface-active agent,
Surfactants are compounds that lower the surface tension of a liquid, the interfacial tension between two liquids, or that between a liquid and a solid. Surfactants may act as detergents, wetting agents, emulsifiers, foaming agents, and dispersants.
例句与用法
1.
No colloid, surfactants or emulsifying agents are employed in the process . 本法不使用胶、表面活化剂或乳化剂。
2.
Surfactant is the name given to the lipid secretions that lie in the alveoli . 表面作用剂是指肺泡上的脂质分泌物。
3.
The large secretory type 2 cell is responsible for the secretion of the surfactant . 较大的型分泌细胞负责分泌表面作用剂。
4.
Development of detergents has required optimization of the surfactants structure . 发展洗涤剂时，要求使用最恰当的表面活性剂结构。
5.
The nonpolar segments of surfactants include straight-chain and branched alkyl groups . 非极性表面活性剂链段包括直链和支链的烷基。
6.
Nonsurfactant additives known as "builders" have long been used to improve detergent action of surfactants . 非表面活性剂的添加剂称作助洗剂，长期以来用以改进表面活性剂的去污作用。
7.
The particle number increased with surfactant and initiator concentration though the data are insufficient for evaluating the nature of these relationships . 粒子数随表面活性剂和引发剂的浓度而增加，虽然数据还不足以评价这些关系的本质。
8.
The quality of the surfactant is also very important 表面活性剂的品质同样重要。
9.
The synthesis and application of mixed surfactant 混合型表面活性剂的合成及应用
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