| WANG Jue,ZHU Kong-hao,ZHENG Wen-fang.Research on Applications of PVP in Degreaser for Metal Cleaning[J],37(6):91-93 |
| Research on Applications of PVP in Degreaser for Metal Cleaning |
| Received:September 17, 2008 Revised:December 10, 2008 |
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| DOI： |
| KeyWord:Phosphorus-free degreaser Polyvinylpyrrolidone (pvp) Surfactants Deoil rate Cleaning |
| Author | Institution |
| WANG Jue |
Sutor Group Changshu Huaye Steel Strio Co. ,Ltd, Changshu , China |
| ZHU Kong-hao |
Sutor Group Changshu Huaye Steel Strio Co. ,Ltd, Changshu , China |
| ZHENG Wen-fang |
Sutor Group Changshu Huaye Steel Strio Co. ,Ltd, Changshu , China |
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| Abstract: |
| The property of cleaning the smeary surface of metal phosphorus-free degreaser consists of polyvinylpyrrolidone(PVP)/nonionic surfactants was studied. The results show that PVP combined with nonionic surfactants has lower surface tension and high deoil rate. An environment friendly phosphorus-free degreaser is obtained. The components of the degreaser: EDTA tetrasodium salt:3g/L , hydrous sodium silicate:9g/L, sodium carbonate:6g/L, sodium hydroxide:9g/L, End-modified polyether CR6 :lg/L,LW20:primary hydroxyl end polyether lg/L, pure water: rest. The degreaser is high efficiency and litter pollution. The deoil rate can reach 99. 82% at about 50℃. |
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