| 熊艳玲,李博,熊勇,金雷,赵燕超,董栋.两种联苯二酚化合物的制备及其在天然橡胶中的应用[J].橡胶科技,2016,14(11):25-29. |
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| 两种联苯二酚化合物的制备及其在天然橡胶中的应用 |
| Preparation of Two Kinds of Diphenol Compounds and Their Application in NR |
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| DOI： |
| 中文关键词: 联苯二酚化合物 防老剂 天然橡胶 热稳定性 |
| 英文关键词: diphenol compound antioxidant natural rubber thermal stability |
| 基金项目: |
| 中图分类号:TQ330.38＋2；TQ332 |
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| 摘要点击次数: 1060 |
| 全文下载次数: 559 |
| 中文摘要: |
| 制备3，3′，5，5′-四叔丁基-2，2′-联苯二酚和5，5′-二叔丁基-2，2′-联苯二酚，并研究其在天然橡胶（NR）中的应用。结果表明，以2，4-二叔丁基苯酚为单体、氯化铜和四甲基乙二胺为催化剂、甲醇为溶剂合成3，3′，5，5′-四叔丁基-2，2′-联苯二酚，再以 3，3′，5，5′-四叔丁基-2，2′-联苯二酚为原料、氯化铝和硝基甲烷为催化剂、苯为溶剂制备5，5′-二叔丁基-2，2′-联苯二酚（为易于溶剂回收，后处理的重结晶采用四氯化碳单组分溶剂）是可行的；将3，3′，5，5′-四叔丁基-2，2′-联苯二酚和5，5′-二叔丁基-2，2′-联苯二酚作为防老剂用于NR中，胶料的抗硫化返原性能、耐热老化性能和热稳定性优于防老剂BHT胶料。 |
| 英文摘要: |
| In this study，3，3′，5，5′-tetra-tert-butyl-2，2′-biphenyldiol and 5，5′-di-tert-butyl-2，2′-biphenyldiol were prepared and their applications in natural rubber（NR） compound were experimentally investigated.The results showed that 3，3′，5，5′-tetra-tert-butyl-2，2′-biphenyldiol was prepared by using 2，4-di-tert-butylphenol as starting material，copper chloride and tetramethylethylenediamine as catalysts，and methanol as solvent，then 5，5′-di-tert-butyl-2，2′-biphenyldiol was produced from 3，3′，5，5′-tetra-tert-butyl-2，2′-biphenyldiol by using aluminum chloride and nitromethane as catalysts，and benzene as solvent.In order to recover solvent efficiently，carbon tetrachloride was used as solvent in recrystallization.It was found that with these diphenol compounds in the NR compounds，the anti-reversion performance，heat aging resistance and thermal stability of the compounds were better than that of the compound with antioxidant BHT. |
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