MODIFIZIERTE PTFE-FESTSCHMIERSTOFFE UND VERFAHREN ZU IHRER HERSTELLUNG UND VERWENDUNG

    公开(公告)号:EP3230418A1

    公开(公告)日:2017-10-18

    申请号:EP15820451.1

    申请日:2015-12-09

    Inventor: LEHMANN, Dieter

    Abstract: The invention concerns the field of polymer chemistry and relates to modified PTFE solid lubricants which can be used as additives, for example. The problem addressed by the present invention is to provide modified PTFE solid lubricants which are easier to handle and dispense. The problem is solved by a method, in which PTFE micro-powder, comprising groups which are at least functional and/or can be thermally activated, is mixed with at least one low molecular weight and/or oligomer compound, comprising at least one NH group that is reactive or thermally reactable and/or can be activated by a catalyst, in a ratio of 100 g PTFE micro-powder to

    Abstract translation: 本发明涉及聚合物化学领域,并涉及例如可用作添加剂的改性PTFE固体润滑剂。 本发明解决的问题是提供更易于处理和分配的改性PTFE固体润滑剂。 该问题通过一种方法解决,其中包含至少官能团和/或可以热活化的基团的PTFE微粉与至少一种低分子量和/或低聚物化合物混合,所述低分子量和/或低聚物化合物包含至少一个NH 以100gPTFE微粉至<100mmol低分子量和/或低聚物化合物的比例反应或热反应和/或可通过催化剂活化,并且在热应力和机械应力下反应性转化的基团或 在机械应力下停留时间<10分钟。 该问题进一步通过改性的PTFE固体润滑剂来解决,其中包含功能性和/或可热活化基团的PTFE微粉末通过以下方式与包含NH基团的低分子量和/或低聚物化合物共价偶联: 化学键合。

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