CAJ | 학술논문

采用1％稀碱溶液在回转式密封炉下对按木片进行抽提预处理，获得稀碱抽提固形物（AES）和稀碱抽提木质素（AEL）．利用热重分析和热裂解‐气相色谱／质谱联用分析等对AES和A EL进行了热解特性分析．结果表明，A ES中含有的酯类和糖类等物质是其最大失重峰峰值温度低的原因之一；此外，AES中的Na盐对有机物大分子的热分解起到了催化促进作用，亦降低了其受热分解的峰值温度．AES和AEL主要的热解产物均是酚类物质，但AES的热解产物较AEL复杂．
채용1％희감용액재회전식밀봉로하대안목편진행추제예처리，획득희감추제고형물（AES）화희감추제목질소（AEL）．이용열중분석화열렬해‐기상색보／질보련용분석등대AES화A EL진행료열해특성분석．결과표명，A ES중함유적지류화당류등물질시기최대실중봉봉치온도저적원인지일；차외，AES중적Na염대유궤물대분자적열분해기도료최화촉진작용，역강저료기수열분해적봉치온도．AES화AEL주요적열해산물균시분류물질，단AES적열해산물교AEL복잡．
Eucalyptus grandis chips were pretreated under 1% NaOH solution with a sealed helicoid furnace to get solid alkali extractives(AES) and lignin from alkali extraction(AEL) . TG and Py‐GC/MS experiments were designed to explore the pyrolysis properties of AES and AEL .The results showed that the peak temperature of maximum weight loss of AES was lower than that of AEL .On one aspect carbohydrates and esters in AES caused this phe‐nomenon .The catalysis of Na salt was the other main reason ,which lowered the peak tem‐perature of maximum weight loss .Phenols were the main pyrolysis products of both AES and AEL ,but pyrolysis products of AES were more complex than those of AEL .