CAJ | 학술논문

针对柔性石墨材料抗拉伸强度低、抗氧化性能差等问题，利用正交试验方法确定钼酸铵改善柔性石墨材料性能的最佳工艺条件，研究了钼酸铵对柔性石墨材料性能的影响，并初步探讨了钼酸铵的作用机理。结果表明，钼酸铵改善柔性石墨材料性能的最佳工艺条件为可膨胀石墨质量与钼酸铵溶液体积比1∶30（g/mL），反应时间2 h，反应温度20℃；钼酸铵可显著提高柔性石墨材料的抗氧化性能，并使抗拉强度也有所提高。随着钼酸铵溶液质量分数的增加，抗拉强度先增大后减小，抗氧化性显著提高后略有降低。钼酸铵溶液质量分数为7%时，抗拉强度最大，抗氧化性能最高。
침대유성석묵재료항랍신강도저、항양화성능차등문제，이용정교시험방법학정목산안개선유성석묵재료성능적최가공예조건，연구료목산안대유성석묵재료성능적영향，병초보탐토료목산안적작용궤리。결과표명，목산안개선유성석묵재료성능적최가공예조건위가팽창석묵질량여목산안용액체적비1∶30（g/mL），반응시간2 h，반응온도20℃；목산안가현저제고유성석묵재료적항양화성능，병사항랍강도야유소제고。수착목산안용액질량분수적증가，항랍강도선증대후감소，항양화성현저제고후략유강저。목산안용액질량분수위7%시，항랍강도최대，항양화성능최고。
Aiming at the problems of low tensile strength and poor oxidation resistance of graphite materials, ammonium molybdate can improve the performance of lfexible graphite and the conditions for preparing the lfexible graphite was optimized by an orthogonal test method, the inlfuence of ammonium molybdate on the tensile strength and antioxidant activity of flexible graphite was investigated and its mechanism was discussed preliminarily. The results showed that optimum process condition: the ratio of mass of expandable graphite to volume of ammonium molybdate solution is 1∶30(g/mL), the reaction time is 2 h at 20℃. The addition of ammonium molybdate could signiifcantly improve the antioxidant activity of lfexible graphite materials and increase the tensile strength. With the increase of ammonium molybdate content, the tensile strength increased ifrst and then decreased, while the antioxidant activity increased quickly and then decreased slightly. When the dosage of ammonium molybdate was 7%, the tension strength and the antioxidant activity of lfexible graphite showed the best value.