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到目前为止,联苯系物质是已知的最好的合成导热油的原料。国外在这方面的研究工作做的比较多,因此已经研制生产出了一些性能较好的导热油,联苯醚和联苯混合制成的导热油就是其中之一,但是这其中有一个比较严重的问题,就是联苯本身的凝点比较高,这一性质很大程度影响了导热油的正常使用。本文就是在这样一种研究背景和状况下,通过联苯的苄基化反应来合成大量的取代产物,成功降低了导热油的凝点。
To date, biphenyl materials are the best known sources of synthetic heat-conducting oils. Foreign research work in this area to do more, it has developed a number of good performance of the HTF, diphenyl ether and biphenyl mixed heat-conducting oil is one of them, but one of them is more serious The problem is that biphenyl itself is relatively high freezing point, which greatly affects the normal use of HTF. This article is in such a research background and conditions, through the benzylation of biphenyls to synthesize a large number of substitution products, successfully reducing the pour point of heat-conducting oil.