甲醛捕捉剂效率的研究
|
摘要
制备甲醛捕捉剂乙烯脲,并研究其在不同条件下清除甲醛的效率.实验中以乙二胺和尿素在回流条件下反应制备了乙烯脲,采用高温蒸发冷凝结晶的方法对制得的固体产物提纯.对提纯后的产物进行熔点测试,乙烯脲的理论熔点133℃,测得产物的熔程132—133℃,与理论值相仿;对产物进行红外光谱分析,谱图表明产物确系为乙烯脲.实验对该产物进行了模拟除醛效率测试,测试发现,常温下质量百分浓度为8%的乙烯脲在4h内对甲醛吸收率为86.5%,效果明显.
A conventional formaldehyde scavenger was prepared in this study, and the formaldehyde-eliminating efficiency of ethyleneurea under varied conditions was determined. The experiment carried out by reacting ethanediamine with urea unde r refluxing for the preparation of ethyleneurea, and purifying the solid product prepared in this experiment by high temperature evaporating-congealing crystallization. The purified product has been tested on melting point, and it came out that the melting range was 132-133℃,which get closed to the theoretical value 133℃.The infrared spectra analysis confirmed that the product was ethyleneurea. In this experiment, the formaldehyde-removing simulation efficiency test on the product was executed, and the result showed that ethyleneurea with a concentration of 8% absorbed formaldehyde with the simulate concentration at a ratio of86.5%at room temperature in 4 hours, so the effect was conspicuous.
A conventional formaldehyde scavenger was prepared in this study, and the formaldehyde-eliminating efficiency of ethyleneurea under varied conditions was determined. The experiment carried out by reacting ethanediamine with urea unde r refluxing for the preparation of ethyleneurea, and purifying the solid product prepared in this experiment by high temperature evaporating-congealing crystallization. The purified product has been tested on melting point, and it came out that the melting range was 132-133℃,which get closed to the theoretical value 133℃.The infrared spectra analysis confirmed that the product was ethyleneurea. In this experiment, the formaldehyde-removing simulation efficiency test on the product was executed, and the result showed that ethyleneurea with a concentration of 8% absorbed formaldehyde with the simulate concentration at a ratio of86.5%at room temperature in 4 hours, so the effect was conspicuous.
引文
[1]高伟,罗建举,屈春意.甲醛捕捉剂在胶合板涂饰中的应用[J].林业技术开发,2013,27(1):89-93.
[2]贡雪芃,黄丽华,施春阳.分光光度法测定甲醛甲酚溶液中甲醛的含量[J].医药导报,2011,30(11):1493-1496.
[3]任龙芳,王学川.蛋白质类甲醛捕获剂除醛效果的对比研究[J].皮革科学与工程,2010,20(4):15-17.
[4]吴鑫德,刘动钢,梁送香.乙酰丙酮法测定甲醛反应的产物[J].分析化学研究简报,2012,30(12),1463-1465.
[5]崔俊,陆浩浩.纳米银的制备及其甲醛去除效果研究[J].科技视界,2012,1(30):48-50.
[6]孙权,李飞,张勇.室内甲醛污染控制技术研究进展[J].工业催化,2012,20(10):128.
[2]贡雪芃,黄丽华,施春阳.分光光度法测定甲醛甲酚溶液中甲醛的含量[J].医药导报,2011,30(11):1493-1496.
[3]任龙芳,王学川.蛋白质类甲醛捕获剂除醛效果的对比研究[J].皮革科学与工程,2010,20(4):15-17.
[4]吴鑫德,刘动钢,梁送香.乙酰丙酮法测定甲醛反应的产物[J].分析化学研究简报,2012,30(12),1463-1465.
[5]崔俊,陆浩浩.纳米银的制备及其甲醛去除效果研究[J].科技视界,2012,1(30):48-50.
[6]孙权,李飞,张勇.室内甲醛污染控制技术研究进展[J].工业催化,2012,20(10):128.