The invention relates to single-component thermosetting epoxy resin adhesives, comprising: a) at least one epoxy resin having, on average, more than one epoxy group per molecule; b) at least one latent hardener for epoxy resins; and c) 2-7 wt% aerogel particles, relative to the total weight of the single-component thermosetting epoxy resin adhesive, wherein the epoxy resin adhesive has a viscosityof 1000-4000 Pas, in particular 1000-3500 Pas, at 25 degrees, wherein the viscosity is oscillographically determined by means of a rheometer having a heatable plate (MCR 301, AntonPaar) (gap 1000 um,measurement plate diameter: 25 mm (plate/plate), deformation 0.01 at 5 Hz, temperature: 25 degrees). The epoxy resin adhesives are characterized in that they can be easily applied in the temperaturerange from 40 degrees to 70 degrees and are scouring-resistant, even at higher temperatures.
本发明涉及单组分热固化环氧树脂粘合剂,所述环氧树脂粘合剂包含a)至少一种环氧树脂,所述环氧树脂平均每个分子具有大于一个环氧基团;b)用于环氧树脂的至少一种潜在的固化剂;以及c)相对于所述单组分热固化环氧树脂粘合剂的总重量计,2‑7重量%的气凝胶颗粒,其中所述环氧树脂粘合剂在25℃下具有1000‑4000Pas、尤其1000‑3500Pas的粘度,其中所述粘度借助于具有可加热板的流变计(MCR 301,AntonPaar)(间隙1000μm,测量板直径:25mm(板/板),在5Hz下变形0.01,温度:25℃)以振荡方式测定。所述环氧树脂粘合剂的特征在于,它们在40℃至70℃的温度范围内可以良好施用并且即使在更高温度下也耐洗出。
SINGLE-COMPONENT THERMOSETTING EPOXY RESIN HAVING HIGH SCOURING RESISTANCE
具有高洗出耐受性的单组分热固化环氧粘合剂
2020-04-17
Patent
Electronic Resource
Chinese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge / C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / C09J ADHESIVES , Klebstoffe |
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