Oxymethylencopolymerisat-Formmassen mit verminderter Formaldehyd-Emission bei der thermoplastischen Verarbeitung
申请人:Degussa Aktiengesellschaft
公开号:EP0202530A1
公开(公告)日:1986-11-26
Die Formaldehyd-Emission bei der thermoplastischen Verarbeitung von bereits ein Antioxidans enthaltenden Oxymethylencopolymerisat-Formmassen wird beträchtlich vermindert, wenn diese Formmassen zusätzlich an der Oberfläche oder homogen eingemischt mindestens eine näher definierte Formaldehyd bindende Substanz enthalten, die im Molekül mindestens zwei 4,6-Diamino-1,3,5-triazin-2- ylreste aufweist. Dadurch werden Geruchsbelästigungen und Formbeläge vermieden.
Multifunctional curing agents and their use in improving strength of composites containing carbon fibers embedded in polymeric matrix
申请人:UT-Battelle, LLC
公开号:US10240011B2
公开(公告)日:2019-03-26
A functionalized carbon fiber having covalently bound on its surface a sizing agent containing epoxy groups, at least some of which are engaged in covalent bonds with crosslinking molecules, wherein each of said crosslinking molecules possesses at least two epoxy-reactive groups and at least one free functional group reactive with functional groups of a polymer matrix in which the carbon fiber is to be incorporated, wherein at least a portion of said cros slinking molecules are engaged, via at least two of their epoxy-reactive groups, in crosslinking bonds between at least two epoxy groups of the sizing agent. Composites comprised of these functionalized carbon fibers embedded in a polymeric matrix are also described. Methods for producing the functionalized carbon fibers and composites thereof are also described.
Ssidorenko, Zhurnal Russkago Fiziko-Khimicheskago Obshchestva, 1904, vol. 36, p. 898
作者:Ssidorenko
DOI:——
日期:——
MULTIFUNCTIONAL CURING AGENTS AND THEIR USE IN IMPROVING STRENGTH OF COMPOSITES CONTAINING CARBON FIBERS EMBEDDED IN A POLYMERIC MATRIX
申请人:UT-BATTELLE, LLC
公开号:US20160102180A1
公开(公告)日:2016-04-14
A functionalized carbon fiber having covalently bound on its surface a sizing agent containing epoxy groups, at least some of which are engaged in covalent bonds with crosslinking molecules, wherein each of said crosslinking molecules possesses at least two epoxy-reactive groups and at least one free functional group reactive with functional groups of a polymer matrix in which the carbon fiber is to be incorporated, wherein at least a portion of said crosslinking molecules are engaged, via at least two of their epoxy-reactive groups, in crosslinking bonds between at least two epoxy groups of the sizing agent. Composites comprised of these functionalized carbon fibers embedded in a polymeric matrix are also described. Methods for producing the functionalized carbon fibers and composites thereof are also described.
MULTIFUNCTIONAL CURING AGENTS AND THEIR USE IN IMPROVING STRENGTH OF COMPOSITES CONTAINING CARBON FIBERS EMBEDDED IN POLYMERIC MATRIX
申请人:UT-Battelle, LLC
公开号:US20170166712A1
公开(公告)日:2017-06-15
A functionalized carbon fiber having covalently bound on its surface a sizing agent containing epoxy groups, at least some of which are engaged in covalent bonds with crosslinking molecules, wherein each of said crosslinking molecules possesses at least two epoxy-reactive groups and at least one free functional group reactive with functional groups of a polymer matrix in which the carbon fiber is to be incorporated, wherein at least a portion of said cros slinking molecules are engaged, via at least two of their epoxy-reactive groups, in crosslinking bonds between at least two epoxy groups of the sizing agent. Composites comprised of these functionalized carbon fibers embedded in a polymeric matrix are also described. Methods for producing the functionalized carbon fibers and composites thereof are also described.