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本文详细探讨了由聚糠醇和酚醛聚合物热解生产玻璃炭的过程。通过对用甲醛改性了的聚糠醇的研究及其与氧化的苯乙醚的比较显示出聚合物中交联键的影响。与原料无关的相似收缩行为表明玻璃炭的孔隙率基本类似,约为30%。这些孔隙有着相同的尺寸,在2200℃热处理后直径为25(?),在3000℃热处理后直径为35(?)。大多数孔隙的入口介于4~5(?)之间。由热处理温度决定的玻璃炭强度在2000℃热处理后达到最大值。由此在室温下可测得抗折强度为15,000psi,扬氏模量为4.5~5psi。
In this paper, the process of producing glassy carbon from pyrolysis of polyfurfural alcohol and phenolic polymer is discussed in detail. The effect of cross-linkages in the polymer is demonstrated by the investigation of formaldehyde-modified polyfurfural alcohol and its comparison with the oxidized phenethyl ether. The similar shrinkage behavior unrelated to the raw materials shows that the porosity of glassy carbon is approximately similar, about 30%. These pores have the same dimensions and have a diameter of 25 (?) After heat treatment at 2200C and a diameter of 35 (?) After heat treatment at 3000C. The entrance to most pores is between 4 and 5 (?). The glass-carbon intensity determined by the heat treatment temperature reaches the maximum after heat treatment at 2000 ° C. As a result, a flexural strength of 15,000 psi and a Young’s modulus of 4.5 to 5 psi were measured at room temperature.