本文選題：季銨化殼聚糖 + 層析硅膠�。� 參考：《材料科學(xué)與工程學(xué)報(bào)》2017年04期

【摘要】：以季銨化殼聚糖(QCS)和層析硅膠為原料,制備了不同硅膠含量的多孔膜。用傅里葉變換紅外(FTIR)和掃描電鏡(SEM)對(duì)多孔膜的結(jié)構(gòu)和形貌進(jìn)行表征。同時(shí),考察了層析硅膠的用量對(duì)多孔膜的含水率(WU)、溶脹度(SR)、機(jī)械性能和電導(dǎo)率的影響。結(jié)果表明,隨著層析硅膠含量的增加,多孔膜的含水率、溶脹度和電導(dǎo)率均升高,但機(jī)械性能下降。當(dāng)層析硅膠的用量為40%時(shí),多孔膜的含水率高達(dá)816%,但是膜的溶脹度僅為189%,拉伸強(qiáng)度為5.6MPa,斷裂伸長(zhǎng)率為4.2%;在測(cè)試溫度為70℃時(shí),不同層析硅膠含量多孔膜的電導(dǎo)率數(shù)值分布在2.4~3.9×10~(-2)S/cm的范圍內(nèi),且隨硅膠含量的增加而增加。
[Abstract]:Porous membranes with different content of silica gel were prepared by using quaternary ammonium chitosan (QCS) and chromatographic silica gel as raw materials. The structure and morphology of porous films were characterized by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). At the same time, the effects of the amount of silica gel on the moisture content, swelling degree, mechanical properties and electrical conductivity of porous membrane were investigated. The results showed that the moisture content, swelling degree and conductivity of the porous membrane increased with the increase of silica gel content, but the mechanical properties decreased. When the amount of silica gel was 40, the water content of porous membrane was up to 816%, but the swelling degree of membrane was only 189.The tensile strength was 5.6 MPA, the elongation at break was 4.2%, and at 70 鈩，

本文編號(hào)：1813102