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以含磷单体、三聚氰胺、苯酚和甲醛为原料,合成了一种含磷含氮酚醛树脂(NP-PF)。将NP-PF进行固化,通过红外、热重分析比表面及电镜分析考察了固化物的成炭过程和炭化物的结构。结果表明:含氮酚醛树脂炭化物表面粗糙疏松,孔洞结构丰富,比表面达到971.25 m~2/g。随着含磷组分的引入,NP-PF炭化物表面的孔洞变少,主体结构较为致密。由于磷氮的共同作用,NP-PF固化物的残炭率提高至57.5%,与PF固化物的残炭率相近。NPPF可以作为一种高强度炭的前驱体。
A phosphorus-containing nitrogen-containing phenolic resin (NP-PF) was synthesized from phosphorus-containing monomers, melamine, phenol and formaldehyde. The NP-PF was cured. The structure of carbonized material and the carbonization process of the cured product were investigated by IR, TG-MS and SEM. The results show that the surface of nitrogen - containing phenolic resin is loose and rough with rich hole structure, and the specific surface area reaches 971.25 m 2 / g. With the introduction of phosphorus-containing components, the pores on the surface of NP-PF carbide become less and the main structure is more compact. Due to the combined action of phosphorus and nitrogen, the residual char yield of NP-PF cured products increased to 57.5%, which is similar to that of PF cured products. NPPF can be used as a precursor of high-strength carbon.