摘要
以无机黏土为物理交联剂,通过原位自由基聚合制备甲基丙烯酸羟基乙酯/丙烯酰胺/黏土(HEMA/AM/clay)纳米复合水凝胶.通过傅里叶红外光谱(FT-IR)分析,证明制备的纳米复合水凝胶具有预期的化学组成;通过差示扫描量热仪(DSC)分析了水凝胶中水的存在状态.研究结果表明,凝胶的溶胀度随AM投料量的增加而增大,且随着AM投料量的增加,凝胶的力学性能随之提高,在溶胀度为350%时,水凝胶的断裂伸长率和抗拉强度分别达到400%和0.5MPa.
Poly （ 2 -hydroxyethyl methacrylate）/acrylamid/clay （ HEMA/AM/clay ） nanocomposite hydrogel was synthesized via in situ free radical aqueous polymerization using inorganic clay as a physical crosslinker. The chemical structure of the hydrogels was confirmed by Fourier transform infrared spectroscopy （FT-IR）. The states of the water in swelling hydrogels were analyzed by differential scanning calorimetry （DSC）. The swelling ratio increased with the increment of AM content in the hydrogels. The hydrogels with higher AM content showed higher mechanical properties. The elongation and tensile strength could reach at 400% and 0.5 MPa respectively while the swelling ratio was 350%.
出处
《东华大学学报（自然科学版）》
CAS
CSCD
北大核心
2012年第6期665-670,共6页
Journal of Donghua University(Natural Science)
关键词
纳米复合水凝胶
甲基丙烯酸羟乙酯
黏土
溶胀度
力学性能
nanocomposite hydrogel
2-hydroxyethylmethacrylate
clay
swelling ratio
mechanicalproperties
