| CaCO_3/PVC体系灰分含量测定方法的改进 |
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| 引用本文： | 牛建华,李荣顺,黄建立.CaCO_3/PVC体系灰分含量测定方法的改进[J].聚氯乙烯,2014(7):30-32. |
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| 作者姓名： | 牛建华 李荣顺 黄建立 |
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| 作者单位： | 华之杰塑料建材有限公司,浙江德清313200 |
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| 摘 要： | 采用二步法灼烧CaCO3/PVC体系,对其灰分的组成和灼烧过程中发生的反应进行了研究,并与一步法灼烧进行了对比。结果表明:①二步法灼烧过程中,CaCO3与HCl发生了复分解反应,且CaCO3的分解温度会降低,灰分含量的测量结果离散度较大;②采用一步法灼烧CaCO3/PVC体系,得到的灰分含量离散度较小,且与CaCO3含量呈一次函数关系,比二步法灼烧更合理,更具实用性。
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| 关 键 词： | PVC 碳酸钙 灰分 灼烧 测定方法 含量 |
Improvement of determination method of ash content of CaCO3/PVC system |
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| NIU Jianhua,LI Rongshun,HUANG Jianli.Improvement of determination method of ash content of CaCO3/PVC system[J].Polyvinyl Chloride,2014(7):30-32. |
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| Authors: | NIU Jianhua LI Rongshun HUANG Jianli |
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| Affiliation: | ( Huazhijie Plastic Building Materials Co. , Ltd. , Deqing 313200, China) |
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| Abstract: | The CaCO3/PVC systems were burned by two-step method. The composition of the ash and the reactions during the burning were studied. The two-step method was compared with one-step method. The results showed that： （1） during the burning by two-step method, CaCO3 and HC1 occurred double decomposition reaction, and the decomposition temperature of CaCO3 reduced, so the dispersion of measurement results of ash content was high; （2） when the CaCO3/PVC system was burned by one-step method, the dispersion of measurement results of ash content was low, and ash content was a linear function of CaCO3 content, so the one-step method was more reasonable and practical than the two-step method. |
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| Keywords: | PVC calcium carbonate ash burning determination method content |
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