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Cyanoacrylate Adhesives
Published in Gerald L. Schneberger, Adhesives in Manufacturing, 2018
Both methyl 2-cyanoacrylate and ethyl 2-cyanoacrylate adhesives are marketed with and without thickening agents. Without a thickening agent, cyanoacrylates are water-thin liquids with viscosities of approximately 1–3 cP. In some formulations, thickening agents have been added to give viscosities ranging from 20 to 200 cP. These thickened adhesives are easier to use, as they tend to run less on and drip less from the bonding area. However, the unthickened, or water-thin, adhesives will spread more rapidly and will form a thinner film than the thickened formulations, and as a result, they form bonds more rapidly.
Substrate temperature effects on the peel behavior of temporary pavement marking tapes
Published in The Journal of Adhesion, 2023
Hyeyoung Son, Kendra A. Erk, Chelsea S. Davis
The dynamic mechanical properties of PSAs were measured in a double lap shear geometry. Figure 2(a) shows the custom-built double lap shear fixture used to measure the dynamic mechanical properties of the PSA. Tapes were cut into 12 mm by 8 mm specimens and the PSA side was attached to both sides of the center portion of the fixture as shown in the inset of Figure 2(a). The top layer was fixed to the outer supports of the fixture with ethyl cyanoacrylate glue (Loctite, Henkel). The double lap shear fixture was assembled with screws. In order to apply shear to the TPM tapes’ PSA layers, these rigid supports were clamped to the tensile oscillator of the dynamic mechanical analysis (DMA, Q850, TA Instrument) instrument. Subsequently, a simple uniaxial tensile configuration of the DMA was used to measure the dynamic mechanical properties of the top layer of each TPM. These DMA tensile samples were prepared by cutting 12 mm by 30 mm specimens after carefully removing the PSA and reinforcing fabrics.
Preparation techniques of thin cyanoacrylate adhesive films for interface analysis
Published in The Journal of Adhesion, 2022
Philipp Moritz, Friedrich Bürger, Lienhard Wegewitz, Wolfgang Maus-Friedrichs
For the different deposition techniques in this work, Si (100)-wafers (polished and n-doped, Crystec, Berlin, Germany) with a size of 10 × 10 x 0.625 mm3 were used as substrate. They have a root mean squared roughness of <1 nm and are therefore well suited to deposit homogenous adhesive films with a thickness of a few nanometers. The wafers were previously cleaned in isopropanol (Sigma-Aldrich, Taufkirchen, Germany) in an ultrasonic bath for 10 minutes each, shaken out in distilled water and allowed to dry. A commercial instant adhesive (Loctite 401, Henkel, Dusseldorf, Germany) was used for all experiments. According to the manufacturer’s specifications, it contains ethyl-cyanoacrylate as the main component.
Fuel Particle Heat Transfer Part 2: Radiation and Convection during Spreading Laboratory Fires
Published in Combustion Science and Technology, 2023
The 1 mm and 12 mm fuel particles were mounted horizontally to the top of the two “comb” tines nearest each end of the particle (Figure 5a). The particles were fastened to the tines with methyl-ethyl cyanoacrylate adhesive (“super glue”). The tines between the ends were shortened to less than one-half the particle mounting height. The 1 mm and 12 mm particles were located immediately adjacent to and on either side of the radiometer whose center was 0.13 m to one side of the 2.44 m wide fuel bed center line in the experimental wind tunnel burning facility at the MFSL (Figures 3 and 5a).