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CRASH-DURABLE ADHESIVE WITH ENHANCED STRESS DURABILITY
CRASH-DURABLE ADHESIVE WITH ENHANCED STRESS DURABILITY
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机译:耐疲劳的粘合剂,具有增强的应力耐久性
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摘要
A heat-curable structural adhesive includes a non-rubber-modified epoxy resin, a reaction product of a carboxyl-or amine-terminated butadiene polymer or copolymer and a bisphenol F-based epoxy resin, a elastomeric toughener containing capped isocyanate groups, one or more epoxy curing agents a moisture scavenger and a heat activatable catalyst comprising a mixture of a solid or liquid tertiary amine compound that has a boiling temperature of at least 130° C. and a novolac resin. The structural adhesive develops excellent bonding properties when cured at moderate temperatures, especially from 120 to 170° C., and in addition performs very well in environmental aging stress testing. The adhesive is particularly good for bonding aluminum to another metal, or bonding aluminum to aluminum.
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