Adhesion agent for aluminum cellular composite board and method of producing the same

Abstract

The invention relates to a glue adhesive used for an aluminum beehive composite board and a preparation method thereof; wherein, the glue adhesive consists of a component A and a component B; the weight percentage composition of the materials of the component A is as follows: 45 to 55 percent of epoxide resin, 2 to 5 percent of thinner, 30 to 42 percent of functional pigment filler, 1.5 to 2.5 percent of KH-560 coupling agent, 6 to 20 percent of kiss toughening agent and 2 to 3 percent of thickening and anti-sinking agent of gas phased silicon dioxide; the weight percentage composition of the materials of the component B is as follows: 60 to 80 percent of phenolic aldehyde modified amine curing agent, 8 to 15 percent of curing accelerator and 10 to 20 percent of plasticizer; and both the weight percentage sum of the materials of the component A and the weight percentage sum of the materials of the component B are 100 percent. The glue adhesive used for the aluminum beehive composite board has the advantages of normal temperature curing, good acid and alkaline resistance, low curing retraction rate, no pollution, high sticking intensity after curing, higher temperature resistance and lower price.

Description

Technical field: [0001] The invention relates to the field of adhesives for chemical products, in particular to an adhesive for composite boards such as aluminum honeycomb cores and aluminum, glass fiber reinforced plastics, silicon-calcium boards, and a preparation method thereof. technical background: [0002] In recent years, the composite structure of honeycomb panels has been widely used in aerospace industry and building decoration. Honeycomb composite panels not only have a gorgeous appearance, but also have the characteristics of light weight, high strength, sound insulation and earthquake resistance. Therefore, the glue used to bond the honeycomb core and the panel is becoming more and more important. Many companies use unsaturated polyester, polyurethane and other adhesives for bonding, but there are many defects in the process of compounding: unsaturated polyester type The adhesive is not resistant to aging, and the bonding strength begins to decrease after a few ...

AI Technical Summary

Problems solved by technology

Therefore, the glue used to bond the honeycomb core and the panel is becoming more and more important. Many companies use unsaturated polyester, polyurethane and other adhesives for bonding, but there are many defects in the process of compounding: unsaturated polyester type The adhesive is not resistant to aging, and the bonding strength begins to decrease after a few months; and the unsaturated polyester adhesive cures rapidly, and the curing is completed in a few minutes, so the adjustment and application of the glue are not easy to control, and the actual operation is difficult; the unsaturated polyester adhesive It also contains a certain amount of solvent, which will cause toxicity and irritation when the solvent volatilizes. At the same time, the volatilization of the solvent will cause volume shrinkage, and it will cause large shrinkage stress during curing shrinkage, which will affect the bonding strength of the composite material.

Solvent-free polyurethane adhesives are not resistant to high temperatures. The general use temperature is -40°C-70°C. The boiling water resistance is poor, and the tensile bond strength and peel strength of the honeycomb plane are low. and the price is higher