CAJ | 학술논문

以萘为原料，采用AlCl3催化合成和热转化处理二步法制备了高软化点、低QI含量的优质萘系中间相沥青。通过分析表征不同条件下合成的萘沥青经热转化后所得中间相沥青的性质和中间相织构形态，重点研究了萘沥青的合成条件与其中间相热转化行为间的内在关系，以确定合成萘沥青的最佳工艺参数。结果表明，在合成温度240℃、合成时间6 h、催化剂用量10%的条件下合成的萘沥青在390℃恒温8 h后能得到100%的广域流线型的体中间相沥青，其软化点为244.6℃，QI含量仅为10.32%。
이내위원료，채용AlCl3최화합성화열전화처리이보법제비료고연화점、저QI함량적우질내계중간상력청。통과분석표정불동조건하합성적내력청경열전화후소득중간상력청적성질화중간상직구형태，중점연구료내력청적합성조건여기중간상열전화행위간적내재관계，이학정합성내력청적최가공예삼수。결과표명，재합성온도240℃、합성시간6 h、최화제용량10%적조건하합성적내력청재390℃항온8 h후능득도100%적엄역류선형적체중간상력청，기연화점위244.6℃，QI함량부위10.32%。
A high quality naphthalene-based mesophase pitch with high softening point and low QI content was prepared by a two-step method of AlCl3 catalytic synthesis and thermal conversion treatment using naphthalene as the raw material. The properties and mesophase textures of the mesophase pitches obtained by the thermal conversion of naphthalene-based pitch synthesized at different synthesis conditions were characterized in order to investigate the effects of synthesis conditions on its mesophase thermal conversion behavior and further determine the optimal synthesis parameters of naphthalene-based pitch. The experimental results showed that a bulk mesophase pitch with 100%anisotropic content and long flow texture was obtained by thermal conversion of naphthalene-based pitch at 390℃for 8 h, which was synthesized under the conditions of synthesis temperature of 240℃, reaction time of 6 h and cat-alyst amount of 10%. The softening point was 244.6℃but the QI content was only 10.32%.