摘要
目的研究不同种类合成纤维以及不同厂家生产的同种类合成纤维的鉴别方法。方法应用功率补偿型差示扫描量热仪测定涤纶、腈纶、锦纶、丙纶、氨纶、氯纶等6种常见合成纤维和10个厂家生产的涤纶纤维的DSC曲线,并对热学参数进行计算和分析。结果涤纶、腈纶、锦纶、丙纶、氨纶、氯纶的DSC曲线明显不同,10个厂家生产的涤纶纤维的DSC曲线虽然非常相近,但对其熔融温度Tm、熔融峰顶温度Tmp、熔融焓变ΔHm、结晶温度Tc、结晶峰顶温度Tcp和结晶焓变ΔHc等热学参数的计算结果显示,10个涤纶纤维的参数并不完全相同。结论差示扫描量热法不但能对不同种类的合成纤维进行鉴别,也可区分不同厂家生产的同种类纤维,从而为案件侦破提供更为准确的方向、线索和证据。
Six kinds of synthetic fiber and terylene fibers collected from ten manufacturers were analyzed by using Differential Scanning Calorimetry.The DSC curve and thermal parameters,such as melting temperature and heat flow were compared.The results showed six kinds of synthetic fiber can be identified by the DSC curves and ten terylene fibers can be identified by thermal parameters.
出处
《刑事技术》
2011年第2期20-22,共3页
Forensic Science and Technology
