液体闪烁计数法鉴别生物质基泡沫材料

doi:10.3969/j.issn.0253-2417.2016.01.007

Abstract

Abstract: The ¹⁴C content in the bio-based foam was determined by liquid scintillation based on ASTM D6866 method.Identification of the bio-based and petroleum based foam was based on the different biobased content.In this experiment, the sample quality is determined by the elemental analysis.The temperature of the ignition experiment is dependent on TG.After combustion, the sample was converted to carbon dioxide.Through a series of chemical reactions, it was synthesised to be liquid benzene.Through the determination of radioactive carbon isotope, content of ¹⁴C in benzene was used to identify biomass based foams and petroleum based foam.The background coal and standard substance sugar carbon were detected simultaneously.The results showed that the ¹⁴C radioactivity values of sugar carbon were the standard value, and the results of biobased content result is in agreement with that of the American Beta laboratory by using accelerator mass spectrometry (AMS) method.The bio-based content of four kinds of foam samples are 18.77%, 23.51%, 5.39% and 11.13%, respectively.They all are bio-based foam.It indicates that the bio-based foam and the petroleum based foam can be identified by this method.

Key words: bio-based foam, benzene synthesis, radiocarbon, liquid scintillation counter

CLC Number:

TQ35

DENG Kun-ming, MA Yan, WANG Hong-xiao, SHEN Juan-zhang, TAN Wei-hong. Identification of the Bio-based and Petroleum Based Foam[J]. Chemistry and Industry of Forest Products, 2016, 36(1): 49-54.

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Identification of the Bio-based and Petroleum Based Foam

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