甘露醇复合相变蓄冷材料的制备及性能研究  

Preparation and Properties of Mannitol Composite Phase Change Cold Storage Materials

作　　者：董月霞 何少勇 刘笛 盛金飞 李晓凤 孙志利 刘娥玉[4] 金蕊 王允直 刘浩威 李蕾 胡佳乐[3] Dong Yuexia;He Shaoyong;Liu Di;Sheng Jinfei;Li Xiaofeng;Sun Zhili;Liu Eyu;Jin Rui;Wang Yunzhi;Liu Haowei;Li Lei;Hu Jiale(Hebei University of Science and Technology,Shijiazhuang,050018,China;Hangzhou Kaili Stainless Steel Kitchen Equipment Co.Ltd.,Zhejiang,310018,China;Tianjin University of Commerce,Tianjin,300134,China;Western Airport Group Qinghai Airport Co.Ltd.,Xining,810007,China)

机构地区：[1]河北科技大学,石家庄050018 [2]杭州凯利不锈钢厨房设备有限公司,浙江310018 [3]天津商业大学,天津300134 [4]西部机场集团青海机场有限公司,西宁810007

出　　处：《冷藏技术》2024年第1期26-32,共7页Journal of Refrigeration Technology

基　　金：于田县葡萄深加工装备的关键技术研究与应用示范(22ZYCGSN00030)。

摘　　要：为满足南美白对虾微冻贮藏保鲜温度的要求,研制了一种低温复合相变蓄冷材料,该材料以甘露醇水溶液为主储能剂,以氯化钾水溶液为降温剂,以高吸水树脂为增稠剂。测试复合相变蓄冷材料的相变温度、相变潜热、导热性能、腐蚀性和热循环稳定性,确定最终配比。结果显示:当甘露醇质量分数为3%,氯化钾质量分数为2%,高吸水树脂质量分数为1.8%,复合相变蓄冷材料的相变温度为-5.5℃,相变潜热为295.7 J/g,无过冷度,导热系数为5.065 W/(m.K)。对铜片和铝片基本无腐蚀,50次循环实验表明复合材料稳定性好。In order to meet the requirements of micro-frozen storage and preservation temperature of Penaeus vannamei,a low-temperature composite phase change cold storage material was developed.The material is mainly stored with mannitol aqueous solution,potassium chloride aqueous solution as cooling agent,and superabsorbent resin as thickener.The phase change temperature,latent heat of phase change,thermal conductivity,corrosivity and thermal cycling stability of the composite phase change cold storage material are tested to determine the final ratio.The results show that when the mass fraction of mannitol is 3%,the mass fraction of potassium chloride is 2%,the mass fraction of super absorbent resin is 1.8%,the phase change temperature of the composite phase change cold storage material is-5.5℃,the latent heat of phase change is 295.7 J/g,there is no supercooling degree,and the thermal conductivity is 5.065 W/(m.K).There is basically no corrosion on copper and aluminum sheets,and 50 cycle experiments show that the composite material has good stability.

关 键 词：蓄冷材料 甘露醇 相变温度 相变潜热 

分 类 号：TB34[一般工业技术—材料科学与工程]