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Effect of Phenolic Resin on Micropores Development in Carbon Foam with High Performance

机译：酚醛树脂对高性能碳泡沫微孔发展的影响

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A novel high-performance carbon foam (CF) was fabricated through the addition of phenolic resin (PR) into a coal tar pitch (CTP) based precursor. The effects of mass fraction of a PR additive on the crystalline structures, morphologies, compressive strength (σ) and thermal conductivity (λ) of resultant CF material were investigated systematically. Characterization showed a strong dependence of CF’s performance from the composition and optical texture of the precursor, which were mainly depending on the polycondensation and polymerization reactions between PR and raw CTP. Comparing with the strength of pristine CF at 6.5 MPa, the σ of mCF-9 (13.1 MPa) was remarkably enhanced by 100.1%. However, the λ of mCF-9 substantially reduced to 0.9 m−1K−1 compared with 18.2 W m−1K−1 of pristine CF. Thus, this modification strategy to produce microporous CF materials from raw CTP provides a new protocol for the fabrication of high-performance carbon based materials.
机译：通过将酚醛树脂（PR）添加到基于煤焦油沥青（CTP）的前驱物中，制造了一种新型的高性能碳泡沫（CF）。系统地研究了PR添加剂的质量分数对所得CF材料的晶体结构，形貌，抗压强度（σ）和热导率（λ）的影响。表征表明，CF的性能强烈依赖于前体的组成和光学结构，这主要取决于PR和原始CTP之间的缩聚和聚合反应。与6.5 MPa的原始CF强度相比，mCF-9（13.1 MPa）的σ明显提高了100.1％。然而，与18.2 W m -1 K 相比，mCF-9的λ基本上降低至0.9 m -1 K -1 原始CF的-1 。因此，这种从粗制CTP生产微孔CF材料的改进策略为制造高性能碳基材料提供了新的协议。

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