Today HORSE summarizes the properties of high-quality carbon fiber glue for everyone. After reading it, you will know which aspects to choose a good glue.

Mechanical properties of "composite materials"

Experiments in the article "Research on the Mechanical Properties of Carbon Cloth Composite Materials" have proved that stress is transferred through the bonding bond between the resin and the reinforcing material. If the bond between the resin and the reinforcing material is not strong, the stress transfer area is only a part of the total area of the reinforcing material. Especially for multi-layer paving carbon fiber cloth, there is no fiber connection between the layers, and the interlayer fracture is more likely to occur when the resin performance is not good and the amount is insufficient.

It can be seen that the mechanical properties of the carbon cloth carbon adhesive composite material greatly affect the bearing capacity of the reinforced structure. So when choosing carbon glue, in addition to considering the properties of the carbon glue itself, it is also necessary to consider the composite mechanical properties of the carbon cloth carbon glue material. The carbon cloth and carbon glue that are compatible with each other can ensure its mechanical properties.

Good adaptability and permeability increase the bonding area between composite materials, make the strength utilization rate higher, and ensure the reinforcement effect. Moreover, there is no need to repeatedly apply glue and soak during construction, which can save the owner about 15% of the amount of glue.

Use performance

When considering the performance of carbon glue, two aspects should be considered: construction performance and long-term performance.

01 Construction performance

For reinforcement companies, more attention is paid to construction performance. When using carbon glue, there are several points of concern:

1) The viscosity should be low to facilitate mixing and stirring;

2) Good fluidity, easy to roll coating and concrete surface to be reinforced;

3) It has a certain degree of thixotropy, and there is as little dripping as possible on the construction site during rolling coating;

4) Non-toxic, harmless and less allergic. Ethylenediamine, benzene, toluene + xylene, and total volatile organic matter in the glue may become allergens for workers and endanger their health.

02 Long-term performance

For owners, they are more concerned about long-term performance. The specification stipulates that with concrete as the base material, the long-term performance of structural adhesives needs to be identified in the following aspects:

1) Resistance to damp and heat aging;

2) Resistance to heat aging;

3)  Freeze-thaw resistance;

4)  Ability to withstand long-term stress;

5)  Resistance to fatigue stress;

At the same time, it must meet the corrosion resistance of the medium-salt spray resistance, seawater immersion resistance, alkali resistance, and acid resistance.