CAJ | 학술논문

研究1053有机硅浸渍漆改性酚醛树脂。通过建立正交试验对其制备工艺的最佳合成方法进行了探讨，得到最佳工艺为：酚醛物质的量比为1：1.7，有机硅用量25 mL，时间为180 min，温度为80℃；各种因素的影响程度依次为反应时间、苯酚/甲醛比值、反应温度及有机硅用量。根据TGA热失重分析其热稳定性。结果表明，用1053有机硅浸渍漆对酚醛树脂进行改性较未改性的酚醛树脂热分解温度达到了525℃，在氮气中820℃烧蚀残炭率达到70%。
연구1053유궤규침지칠개성분철수지。통과건립정교시험대기제비공예적최가합성방법진행료탐토，득도최가공예위：분철물질적량비위1：1.7，유궤규용량25 mL，시간위180 min，온도위80℃；각충인소적영향정도의차위반응시간、분분/갑철비치、반응온도급유궤규용량。근거TGA열실중분석기열은정성。결과표명，용1053유궤규침지칠대분철수지진행개성교미개성적분철수지열분해온도체도료525℃，재담기중820℃소식잔탄솔체도70%。
This paper is concerned with the synthesis of 1053 silicone varnish modified phenolic resins. The orthogonal tests for optimal preparation process of silicone-modified phenolic resins were discussed, and the best process was as follows: P / F (mol) of 1: 1.7, silicone of 25 ml, reaction time of 180 min, reaction temperature of 80℃. The influence extent of various factors was followed in sequence by the reaction time, the phenol/formaldehyde ratio, the reaction temperature and the siliconeamount. According to TGA test the thermal stability results showed that the silicone modified phenolic resin was more stable than the unmodified phenolic resin.The decomposition temperature was significantly increased, reaching 525 ℃and the carbon ablation rate at 820℃in nitrogen reached 70%.