Adhesives
aflatex
Figure 1. Peel strength test two leather pieces
Figure 2. Shear strength test using a carpet backing and plywood
Two green adhesives are being produced using AFLatex technologies:
- AFLatex Office and Home Glue with a 35% rubber content, and
- AFLatex Industrial Adhesive with 60% rubber content.
We performed a peel strength test on both adhesives using ASTM F2256 standard.
We also performed a shear strength test on the AFlatex Industrial Adhesive using the ASTM D6004 standard.
1.
AFLatex Office and Home Glue with 35% Dry Rubber Content DRC
The specimens were cut from natural grain cow leather sheets to a width (W) of 2.54 cm (1”). The AFLatex Office and Home Glue peel strength was compared to a commercially available polyvinyl acetate glue, as shown in FIG. 18. It can be seen that the AFLatex Office and Home Glue has a significantly higher peel strength than the commercial adhesive, which exhibited a peel strength of 6.29 N/cm.
2.
AFLatex Industrial Adhesive with 60% Dry Rubber Content DRC
The peel strength of the AFLatex Industrial Adhesive with a 60% dry rubber content was compared to a commercially available ammoniated natural rubber cement and two commercially available ethyl acetate and solvent-based leather adhesives. As can be seen, the solventless AFlatex Industrial Adhesive was stronger than the two solvent-based adhesives and the ammoniated rubber adhesive.
The shear strength of the AFLatex Industrial Adhesive with 60% rubber content was also compared to a commercially available solvent-based flooring and carpet adhesive, using tests conducted according to ASTM Standard D6004.
The figure on the left compares the shear strength of the AFLatex Industrial Adhesive and the solvent-based flooring and carpet adhesive. It is clear that the solventless AFLatex Industrial Adhesive with 60% dry rubber content has a higher strength than its commercially available solvent-based carpet adhesive counterpart.
