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醇溶性无机富锌涂料改性的研究 被引量:4
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作者 蒋培泽 《涂料技术与文摘》 2003年第2期22-23,26,共3页
醇溶性无机富锌涂料具有干燥迅速、施工简便等优点,但漆膜较厚时容易龟裂,后续涂层配套困难。采用带NCO基团的高分子有机化合物进行改性,可克服以上缺点。本文重点讨论了改性过程中的合成丁艺、水解介质及溶液的贮存稳定性等。
关键词 醇溶性无机富锌涂料 改性 高分子有机化合物 合成工艺 贮存稳定性
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Study on Preparation and Application of Ti/Si Complex Zeolite
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作者 Zhang Baoji Wang Xieqing(SINOPEC Research Institute of Petroleum Processing, Beijing 100083) 《China Petroleum Processing & Petrochemical Technology》 SCIE CAS 2003年第3期49-52,共4页
A Ti/Si complex zeolite has been prepared. X-ray diffraction and infrared spectrometry study has shown that two structures, namely the ZSM-5 and MCM-41, exist in the sample. BET tests have revealed that the complex ze... A Ti/Si complex zeolite has been prepared. X-ray diffraction and infrared spectrometry study has shown that two structures, namely the ZSM-5 and MCM-41, exist in the sample. BET tests have revealed that the complex zeolite contains regular mesopores of 2.6 nm. Ultraviolet spectrometry analysis has shown that the Ti species exist in the zeolite skeleton in the form of tetra-coordinate valence. The Ti/Si complex zeolite (TS-1/Ti-MCM-41) has apparently improved catalytic activity with respect to the macromolecular organic compound oxidation as compared to individual components of either Ti or Si containing zeolites (TS- 1 and Ti-MCM-41). 展开更多
关键词 Ti/Si zeolite COMPLEX macromolecular organic compound CATALYSIS OXIDATION
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