發(fā)布時間：2019-06-15 08:18

【摘要】：采用明膠為原料,以甲基丙烯酸縮水甘油酯和亞硫酸氫鈉為改性劑,在明膠分子鏈上引入極性基團(tuán)磺酸基,制得新型磺化明膠水凝膠。采用紅外光譜(FT-IR)、X射線光電子能譜(XPS)和掃描電鏡(SEM)對其組成和結(jié)構(gòu)進(jìn)行了表征。通過動態(tài)黏彈譜儀(DMA)測定水凝膠的儲能模量,探討不同外加電場作用下該水凝膠的電場響應(yīng)性能。隨著明膠水凝膠中S元素的原子百分比的增大,在外加電場下,膠體的電場響應(yīng)能力增強(qiáng)。當(dāng)外加電場為1.6kV/mm、明膠水凝膠中S的原子百分比為1.59%時,水凝膠對電場作用的響應(yīng)最明顯,儲能模量的增加率為31.86%。
[Abstract]:Using gelatin as raw material, glycidyl methacrylate and sodium bisulfite as modifiers, a new sulfonated gelatin hydrogel was prepared by introducing polar group sulfonic acid group into gelatin molecular chain. The composition and structure were characterized by infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS) and scanning electron microscope (SEM). The storage modulus of the hydrogel was measured by dynamic Viscoelastic spectrometer (DMA), and the electric field response performance of the hydrogel under different applied electric fields was discussed. With the increase of the atomic percentage of S element in gelatin hydrogel, the electric field response ability of colloid increases under the applied electric field. When the applied electric field is 1.6 kV 鈮，

本文編號：2500085