包膜型乙酸钙抗凝冰剂的制备及其融冰雪能力测试  

Preparation of Coated Calcium Acetate Anticoagulant and Test of Its Ice and Snow Melting Ability

作　　者：刘博[1] 赵苏[1] LIU Bo;ZHAO Su(Shenyang Jianzhu University,Shenyang Liaoning 110168,China)

机构地区：[1]沈阳建筑大学材料科学与工程学院,辽宁沈阳110168

出　　处：《辽宁化工》2023年第8期1117-1121,共5页Liaoning Chemical Industry

摘　　要：选取电石渣作为原材料,经粉碎、研磨、煅烧、水溶、中和、过滤、蒸发浓缩和干燥等一系列操作制得乙酸钙,该成品具备一定的融冰化雪性能,可以作为新型环保非氯盐融雪剂使用。借鉴农药、化肥包膜技术,分别采用正硅酸乙酯、环氧树脂、酚醛树脂对乙酸钙进行包膜,制得乙酸钙抗凝冰剂。采用DDS-11A数显电导率仪分别测试不同有机物包膜乙酸钙后乙酸根离子的释放量,并对3种包膜的乙酸钙进行抗凝冰试验及缓释效果比较。结果显示:在对乙酸钙进行包膜时,正硅酸乙酯与乙醇稀释比例为3∶20,浸泡均匀后包膜两层时缓释性能最佳;环氧树脂与环己酮的稀释比例为4∶1时,均匀浸泡后包两层膜时缓释性能最佳;酚醛树脂与乙醇的稀释比例为3∶1,均匀浸泡包膜一层时缓释性能最好。通过抗凝冰试验及缓释结果对比,环氧树脂和酚醛树脂较正硅酸乙酯包膜的乙酸钙性能更优。采用环氧树脂、酚醛树脂对乙酸钙进行包膜制得的抗凝冰剂具有环保、长效的性质,因而具有较为广阔的应用前景。Calcium acetate was produced by a series of operations including crushing,grinding,calcination,water solubilisation,neutralisation,filtration,evaporation and concentration and drying,etc.The finished product has certain performance of melting ice and snow,and can be used as a new environmentally friendly non-chlorinated salt snow melting agent.Drawing on pesticide and fertilizer coating technology,ethyl orthosilicate,epoxy resin and phenolic resin were used to coat calcium acetate to produce calcium acetate anti-condensation agent.The DDS-11A digital conductivity meter was used to test the release of acetate ions after coating calcium acetate with different organic substances,and to compare the anti-icing test and slow release effect of the three types of coated calcium acetate.The results showed that the best slow release performance was achieved when the calcium acetate was wrapped with a dilution ratio of ethyl orthosilicate/ethanol of 3∶20 and soaked uniformly in two layers;the best slow release performance was achieved when the epoxy resin was soaked uniformly in two layers with a dilution ratio of 4∶1 with cyclohexanone;the best slow release performance was achieved when the phenolic resin was soaked uniformly in one layer with a dilution ratio of 3∶1 with ethanol.By comparing the results of the anti-icing test and the slow release results,the epoxy and phenolic resins performed better than the ethyl orthosilicate wrapped calcium acetate.The anti-icing agent produced by using epoxy resin and phenolic resin to coat calcium acetate is environmentally friendly and long-lasting,and therefore it has a broader application prospect.

关 键 词：乙酸钙 包膜技术 抗凝冰剂 缓释性能 

分 类 号：U414[交通运输工程—道路与铁道工程]