| 磷酸铵盐法制聚磷酸铵工艺研究 |
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| 引用本文： | 崔益顺.磷酸铵盐法制聚磷酸铵工艺研究[J].四川理工学院学报(自然科学版),2013,26(1):6-8. |
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| 作者姓名： | 崔益顺 |
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| 作者单位： | 四川理工学院材料与化学工程学院,四川自贡,643000 |
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| 基金项目： | 自贡市重点科技计划项目(2011G052) |
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| 摘 要： | 以磷酸二氢铵和尿素为原料,采用缩合法合成聚磷酸铵,探讨原料配比(尿素与磷酸二氢铵摩尔比)、反应温度和反应时间等因素对产品聚合度的影响。通过单因素和正交实验得到较优工艺条件为:尿素与磷酸二氢铵的摩尔配比1∶1,反应温度150～170℃,反应时间180 min。在此条件下,产品平均聚合度为91,P2O5含量72.04%,溶解度3.3 g/100 mL水,阻燃率55.76%。通过X射线衍射仪分析得出产品为I-型APP。
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| 关 键 词： | 磷酸二氢铵 尿素 聚磷酸铵 聚合度 |
Study on Preparation of Ammonium Polyphosphate by Ammonium Phosphate Process |
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| CUI Yi-shun.Study on Preparation of Ammonium Polyphosphate by Ammonium Phosphate Process[J].Journal of Sichuan University of Science & Engineering:Natural Science Editton,2013,26(1):6-8. |
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| Authors: | CUI Yi-shun |
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| Institution: | CUI Yi-shun(School of Material and Chemical Engineering,Sichuan University of Science & Engineering,Zigong 643000,China) |
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| Abstract: | By the method of condensation, ammonium polyphosphate is synthesized with ammonium dihydrogen phosphate and urea as materials. The effect of material ratio, reaction temperature, time are discussed on the polymerization degree of products. By using single factor and orthogonal experiments, the optimal conditions are obtained as follows： the molar ratio of urea and ammonium dihydrogen phosphate is 1： 1, temperature is 150-170 ℃, polymerization time is 180min. Under these conditions, the average polymerization degree of APP is 91, the content of P2O5 is 72.04%, the solubility of product is 3.3g/100mL H2O,the retardant rate is 55.76%. It is found by X-ray diffraction that the structure of optimization product is APP- I . |
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| Keywords: | ammonium dihydrogen phosphate urea ammonium polyphosphate polymerization degree |
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