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首页> 外文期刊>Journal of Applied Polymer Science >Carbon black modified with 4-hydroxymethylbenzenediazonium salt as filler for phenol-formaldehyde resins and abrasive tools
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Carbon black modified with 4-hydroxymethylbenzenediazonium salt as filler for phenol-formaldehyde resins and abrasive tools

机译：用4-羟甲基苯齐氮鎓盐作为剥酚醛树脂和磨料工具的炭黑改性炭黑

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Although phenol-formaldehyde (PF) resins possess excellent properties, they emit toxic substances during the decomposition of the crosslinking agent. Therefore, studies are being carried out on the fillers, which can reduce the amount of crosslinking agent. In this article, the synthesis of diazonium-modified carbon black was conducted. Diazonium modification allows the effective incorporation of hydroxymethyl groups, which are responsible for the crosslinking of PF resins. Modified materials were used as active fillers in the PF composites and abrasive tools. Due to carbon modification, flexural strength increases 26% for PF resin composite and 1100% for abrasive tools. The increase is related to the resulting covalent bonds between the resin and the modified filler. Therefore, it can be stated that application of active filler improves the properties of novolac composites and abrasive tools. The use of this type of fillers may affect the reduction of the amount of crosslinking agent in the future. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48160.
机译：虽然酚醛 - 甲醛（PF）树脂具有优异的性能，但它们在交联剂的分解过程中发出有毒物质。因此，正在填料上进行研究，这可以减少交联剂的量。在本文中，进行了重氮改性炭黑的合成。重氮修饰允许有效地掺入羟甲基，其负责PF树脂的交联。改性材料用作PF复合材料和研磨工具中的活性填料。由于碳改性，PF树脂复合材料的弯曲强度增加了26％，磨料工具1100％增加。增加与树脂和改性填料之间的所得共价键有关。因此，可以说，活性填料的施加改善了酚醛清漆复合材料和磨料工具的性质。这种类型的填料的使用可能会影响未来交联剂量的减少。 （c）2019 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2020,137,48160。

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