教師資料查詢 | 類別: 會議論文 | 教師: 張朝欽 Chang, Chao-Ching (瀏覽個人網頁)

標題:Thermal analyses of dye disperse red 1 grafted onto silica nanoparticles
學年103
學期1
發表日期2014/09/25
作品名稱Thermal analyses of dye disperse red 1 grafted onto silica nanoparticles
作品名稱(其他語言)
著者Chang, Chao-ching; Hwang, Feng-hsi; Lin, Zi-min; Cheng, Liao-ping
作品所屬單位
出版者
會議名稱2nd TKU-OPU and 4th TKU-ECUST-OPU-KIST International Symposium
會議地點台灣台北; Taipei, Taiwan
摘要Dye-grafted silica nanoparticles (GSiO2) were synthesized via a dual-step process involving, first, attachment of the organic dye Disperse Red 1 (DR1) to the coupling agent, 3-isocyanatopropyltriethoxysilane, by means of urethane bonds, and then grafting of the silylated-DR1 onto silica nanoparticles (~6 nm) prepared by hydrolysis and condensation of tetraethoxysilane in a sol–gel process. Dye-adsorbed silica nanoparticles (DSiO2) were also prepared for comparison, for which DR1 was bound only physically to silica instead of covalent bonds. The thermal behaviors of the formed GSiO2 and DSiO2 were examined by means of differential scanning calorimetry and thermal gravimetric analysis. The results showed that both the particle size and silica content have significant effects on the thermal behaviors of the dye-adsorbed and dye-grafted silica. Moreover, crystalline DR1 lost significantly its crystallinity after being adsorbed on silica, and became virtually amorphous after being grafted onto silica. The formed particles were UV-cured with a multifunctional acrylic monomer to yield color coatings on glass substrates. UV–visible spectra indicated that brightness and color saturation of the coating comprising GSiO2 could be maintained better than that comprising DSiO2 after heat treatment at 280°C.
關鍵字Dye;Silica;Thermal behavior;Thermal stability;Crystallinity;Degradation
語言英文(美國)
收錄於
會議性質國際
校內研討會地點
研討會時間20140925~20140927
通訊作者Cheng, Liao-ping
國別中華民國
公開徵稿
出版型式
出處Journal of Coatings Technology and Research 12(4), pp.731-738
相關連結
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