| 摘要 |
PURPOSE:To provide a two-pack reactive adhesive which gives a composite panel of high quality in a short time does not cause bubbling, wrinkling and cracking, by dispersing short glass fiber having a specified length in the main component and/or the hardener component of a two-pack reactive adhesive. CONSTITUTION:Not more than 10wt% (based on the combined quantity of main component and hardener component) short glass fiber having a length of less than 20mm is added to the main component and/or the hardener component of a two-pack reactive adhesive (e.g., a urethane adhesive). Said main component is obtd. by mixing a polyol such as a polyether polyol obtd. by addition-polymerizing propylene oxide to propylene glycol, etc. as an initiator with a catalyst (e.g. triethylamine) and optionally, an extender, a dispersant, a thickener, etc. and said hardener component is composed of a polyisocyanate having an NCO content of 3-15%. Mixing is then carried out to disperse the fiber.
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