润滑油抗泡剂的类型和机理探讨.pdf

2010 6 25 3 Jun. 2010 LUBR ICAT ING O IL V o .l 25, No. 3 : 1002-3119 ( 20 10 03-004 1-02 , , ( , 1160 32 : , , , : ; ; ; : TE624. 82 : A D iscuss io n o n the Typ e a nd M e chan ism o f An tifo am e r fo r Lub ric a ting O ils DENG Guang- yong, LIU Hong- hu,i LIChun- Lu ( PetroChni a Dalai n Lubricatni g O ilRD Institute, Dalai n 116032, China) Abstrac t: ccording to the determ ination method of foam ni g characteristci s for lubricating oils and the principel s of surfac- tant, thedefoam ing andantifoam ingmechanism ofantifoamer for lubricatni g oils is descrbi ed. The authordoesnct think that the mechanism of antifoamer for lubrciating oils isdebasni g the surface tensoi n of the interfaceof lqi uidand air. It is pointed out that theantifoamer for lubricating oils should possess the abilitei s of enhancing tensionordebasni g ni tensity and tenacity of foam surface. nd itsprinciple is described indetai.l Finally, the propertiesof organic siliconeantifoamer, non siliconean- tifoamerand compounded antifoamerare presented brei fly also. K ey words: antifoamer; surfactant; mechanism; type 0 , , , , , , 1 , , , , , , [ 1] A STM D 892 , GB /T 1257956 , : 5 m in, , 10 m in, , , , , , ( ,