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英翻汉,要尽可能的能通!Fouriertransforminfraredanalysisofpartiallypyrolyzedcompositesamplesindicatesthatthepyrolysisofphenolicresinincarbon/phenoliccompositesoccursinthreemajorstages.Thepyrolysisbeginswiththeformation

题目详情
英翻汉,要尽可能的能通!
Fourier transform infrared analysis of partially
pyrolyzed composite samples indicates that the pyrolysis
of phenolic resin in carbon/phenolic composites
occurs in three major stages.The pyrolysis begins
with the formation of additional intermolecular crosslinks
between aromatic rings.In the reaction range
investigated by FTIR analysis,it is clear that this
initial stage is followed by a second stage in which
crosslinks begin to break and disappear.
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答案和解析
1.对一部分热解聚合材料样品进行傅里叶变换式红外线分析,
从而表明了酚树脂在酚碳合成物中的高温分解出现3种阶段.
高温分解伴随着芳环中附加的分子间交链构造编排而开始进行.
通过傅里叶红外光谱分析侦测的反应范围里,很明显发现初期阶段后紧随而至的是二阶,
这种二阶段中,开始进行交链,并打破逐渐消失.
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