CAJ | 학술논문

以催化油浆重质芳烃为原料,苯甲醛为交联剂,在浓硫酸作催化剂条件下,合成沥青树脂。采用FTIR探究了反应机理,采用TGA考察了合成树脂的热重反应性能。通过单因素实验,考察了合成条件对沥青树脂软化点、残炭量、收率的影响。结果表明,反应机理为质子催化下的缩聚反应；合成树脂的工艺条件为：交联剂用量70%,反应时间为5 h,反应温度为130℃,催化剂用量为6%。合成树脂的收率为83.2%,残炭量为27.6%,软化点为76.5℃。
이최화유장중질방경위원료,분갑철위교련제,재농류산작최화제조건하,합성력청수지。채용FTIR탐구료반응궤리,채용TGA고찰료합성수지적열중반응성능。통과단인소실험,고찰료합성조건대력청수지연화점、잔탄량、수솔적영향。결과표명,반응궤리위질자최화하적축취반응；합성수지적공예조건위：교련제용량70%,반응시간위5 h,반응온도위130℃,최화제용량위6%。합성수지적수솔위83.2%,잔탄량위27.6%,연화점위76.5℃。
Asphalt resin has been synthesized using heavy aromatic as monomer and benzaldehyde as cross-linking agent in the presence of concentrated sulfuric acid. FTIR was used to study the reaction mechanism. The thermal weight loss behavior of the synthesized resin was characterized by TGA. The effects of synthesis conditions on the softening point and carbon residue of the pitch resin as well as its yield were investigated by single factor experiments. The results showed that the reaction of heavy aromatic and benzaldehyde is a positive ion-typed condensation polymerization catalyzed by acid. The suitable con-ditions for synthesizing the asphalt resin were:the usage of crosslinkers 70%,the reaction time of 5 h, the reaction temperature of 130 ℃ and the usage of catalyst 6%. Under the optimal conditions, the asphalt resin exhibits the yield of 83. 2%,the carbon residue of 27. 6% and the softening point of 76. 5 ℃.