摘要
建立了近红外和红外光谱法联合用于识别聚乙烯再生塑料,防止再生塑料的滥用。采用熔融压膜法制备样品,分别建立了近红外一致性模型和以羰基指数为指标的红外光谱识别方法,并进行了样品测试。近红外一致性模型准确率达92%,基本可以准确识别;再生塑料红外羰基指数整体上大于新料瓶壁压膜的羰基指数。近红外模型与红外羰基指数相结合可以有效识别聚乙烯再生塑料,相互佐证可有效减少误判。
A method which combined near infrared （NIR） consistency model with infrared （IR） carbonyl index was established for the identification of recycled polyethylene （PE）, in order to prevent the abuse of recycled polyethylene. Hot-pressed samples were used to establish the NIR consistency model and the IR method with carbonyl index as identification index, and followed with the sample test. By means of NIR consistency model, recycled polyethylene was identified with the accuracy rate of 92 %. Generally, carbonyl indexes of recycled materials were greater than that of the new materials. The combination method of NIR model and IR carbonyl index could effectively identify recycled polyethylene and decrease the possible misiud^ments corroborating with each other.
出处
《中国医药工业杂志》
CAS
CSCD
北大核心
2015年第6期614-619,共6页
Chinese Journal of Pharmaceuticals
基金
国家质量监督检验检疫总局公益性行业科研专项"双打"研究专项(2012104008-1)
关键词
聚乙烯再生塑料
熔融压膜
近红外一致性模型
红外羰基指数
识别
recycled polyethylene
hot-pressed method
near infrared consistency model
infrared carbonyl index
indentification
