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首页> 外文会议>Fifth International Conference on Ion Exchange Processes held on 5-9 July 1998 at Plas Coch College, The North East Wales Institute, Wrexham, UK >Physicochemical characterization of metal-alginate gels
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Physicochemical characterization of metal-alginate gels

机译：金属藻酸盐凝胶的理化特性

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摘要

The gelling and physical properties of alginate gels depend on the conditions under which alginate gels are formed. A wide range of sodium alginate and calcium nitrate concentrations were used to study how some physicochemical properties of calcium alginate gels depend on the alginate and calcium concentration, and also on the ionic strength of the gelling solution. The kinetic of sol/gel transformation was a process controlled by the diffusion of metal ions into alginate spheres. It was described by the unreacted core model assuming an average particle radius, and by the modified unreacted core model allowing for the variation of the bead size.
机译：藻酸盐凝胶的胶凝和物理性质取决于形成藻酸盐凝胶的条件。海藻酸钠和硝酸钙的浓度范围很广，用于研究海藻酸钙凝胶的某些理化性质如何取决于海藻酸和钙的浓度以及胶凝溶液的离子强度。溶胶/凝胶转变的动力学是受金属离子扩散到藻酸盐球中控制的过程。它由假设平均颗粒半径的未反应核模型和允许珠大小变化的改进未反应核模型描述。

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