论文部分内容阅读
将生物质资源淀粉在硫酸作用下水解,进而替代甲醛与苯酚进行缩聚反应生成淀粉基树脂,然后以六次甲基四胺交联固化,在反应前后进行了IR、XRD与SEM表征,并研究了产物的耐热性能。IR、XRD与SEM表明淀粉完全参加反应,凝胶反应时间随反应温度的升高而减小,制备所得淀粉基树脂具有较好的耐热性能,两种淀粉基树脂分别在550.3℃与551.4℃下具有50%的质量残留,热降解反应表观活化能分别为12.50kJ/mol和13.39kJ/mol。
The biomass resource starch was hydrolyzed under the action of sulfuric acid to replace the condensation reaction of formaldehyde and phenol to produce starch-based resin. Then the crosslinked starch was cured with hexamethylenetetramine and characterized by IR, XRD and SEM before and after the reaction The product of the heat resistance. IR, XRD and SEM showed that the starch completely participated in the reaction and the gel reaction time decreased with the increase of the reaction temperature. The obtained starch-based resin had good heat resistance. The two kinds of starch-based resins were respectively at 550.3 ° C. and 551.4 ° C. With a residual mass of 50%, the apparent activation energy of the thermal degradation reaction are 12.50kJ / mol and 13.39kJ / mol, respectively.