高吸水性树脂蓄冷材料配方研究

发布时间：2019-04-13 14:13

【摘要】：由高吸水性树脂和无机盐组成的蓄冷材料具有良好的实用性，适用于物理降温、冷敷理疗，现在已成为医疗卫生机构降温冷敷的首选产品。但目前市面上的这种蓄冷材料冷敷袋存在反应后是液体状态，易于流动，且制冷时间也相对较短，不能重复使用，消耗量大等问题，为医护人员提供的便利有限。本研究以高吸水性树脂为主要原料，优化出一种冷量释放均匀且缓慢，保冷时效佳等特点的蓄冷材料。本研究通过测量经过冷冻的树脂在同一室温下温度随时间的变化关系来测量四种高吸水性树脂材料的蓄冷效果，对四种不同生产厂家的高吸水性树脂A、B、C和D的水溶液进行浓度优化研究。结果表明，在0.2%——1.0%浓度范围内，优化浓度分别为：树脂A为0.8%、树脂B为0.4%、树脂C为0.6%、树脂D为0.8%；在0.8%——4.5%浓度范围内，优化浓度分别为：树脂A为2.5%、树脂B为0.8%、树脂C为1.5%、树脂D为1.5%。综合比较四种树脂的蓄冷效果发现1.5%的树脂C溶液的蓄冷效果最佳。在树脂A水溶液中分别添加NaCl、Na2SO4和Na2CO3发现由于溶解平衡的影响，，反而使树脂的蓄冷效果变差。此外，从树脂本身的性质分析，探究不同吸水倍率和粒径大小对树脂蓄冷效果的影响。研究结果表明吸水倍率对同种浓度下树脂溶液的蓄冷效果影响规律不显著；而树脂粒径小对树脂蓄冷效果有利，但具体的规律还有待进一步研究。
[Abstract]:The cold storage material composed of super absorbent resin and inorganic salt has good practicability and is suitable for physical cooling and cold compress physiotherapy. Now it has become the first choice of cooling cold compress in medical and health institutions. But at present, the cold dressing bag of this kind of cold storage material on the market has a liquid state after reaction, is easy to flow, and the refrigeration time is relatively short, can not be reused, and the consumption is large, so the convenience for medical and medical personnel is limited. In this paper, the superabsorbent resin was used as the main raw material to optimize a cold storage material with the characteristics of uniform and slow cold release, good cold retention aging and so on. The cold storage effects of four kinds of super absorbent resin materials were measured by measuring the relationship between temperature and time of the frozen resin at the same room temperature, and the cold storage effects of four kinds of super absorbent resins A, B, B were measured by measuring the relationship between the temperature and the time of the frozen resin at the same room temperature. The concentration optimization of aqueous solution of C and D was carried out. The results showed that the optimum concentration was 0.8% for resin A, 0.4% for resin B, 0.6% for resin C and 0.8% for resin D in the concentration range of 0.2% / 1.0%. In the range of 0.8% / 4.5%, the optimum concentration was 2.5% for resin A, 0.8% for resin B, 1.5% for resin C and 1.5% for resin D, respectively. A comprehensive comparison of the cold storage effects of four resins shows that 1.5% resin C solution has the best cold storage effect. The addition of NaCl,Na2SO4 and Na2CO3 to the aqueous solution of resin A showed that the cold storage effect of the resin became worse due to the influence of dissolution equilibrium. In addition, from the analysis of the properties of the resin itself, the effects of different water absorption rates and particle sizes on the cold storage efficiency of the resin were investigated. The results show that the water absorption ratio has no significant effect on the cold storage effect of the resin solution at the same concentration, but the small particle size of the resin is beneficial to the cold storage effect of the resin, but the specific law needs to be further studied.
【学位授予单位】：武汉工程大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TQ324.8;R318.08

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