Evaluation of the oligomeric epoxy silane as coupling agent on thermal and mechanical properties of water‐based acrylate adhesives

To improve the thermal and mechanical properties of water‐based acrylate adhesives, epoxy functional silane oligomer (EFS) was investigated as a crosslinking agent at different curing temperatures from 100 to 140°C. Water‐based acrylate adhesives with different EFS concentrations (0.0–2.0 wt%) were...

Full description

Saved in:
Bibliographic Details
Published in:Polymer engineering and science 2022-10, Vol.62 (10), p.3310-3322
Main Authors: Romão, Eduardo Gouveia Martins, Oliveira, Maurício Pinheiro, Guerrini, Lília Müller
Format: Article
Language:English
Subjects:
Adhesives
Chemical properties
Coupling agents
Crosslinking
crosslinking acrylate adhesive
Curing
Curing agents
Dynamic mechanical analysis
Epoxysilanes
Fiber composites
formaldehyde‐free
Fourier transforms
functional epoxy silane
Impact analysis
Infrared spectroscopy
Mechanical properties
one‐component adhesive
Particle board
Silane
Tensile strength
Tensile tests
Thermodynamic properties
Thermogravimetric analysis
Water absorption
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:To improve the thermal and mechanical properties of water‐based acrylate adhesives, epoxy functional silane oligomer (EFS) was investigated as a crosslinking agent at different curing temperatures from 100 to 140°C. Water‐based acrylate adhesives with different EFS concentrations (0.0–2.0 wt%) were prepared and characterized by Fourier transform infrared spectrometry (FT‐IR), colloidal stability, water absorption, mechanical and thermal properties. The thermal and mechanical properties of samples were investigated by means of differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), tensile testing, Izod impact, and dynamic mechanical analysis. The amount of EFS had a significant influence on the crosslinking process and curing temperature. FT‐IR and TGA analysis revealed successful crosslinking of EFS with the water‐based acrylate adhesive at 100°C temperature. The use of EFS after different curing processes showed higher tensile strength and lower water absorption. Among the percentage of EPS studied, the use of 1.0 wt% presented the most promising results for the improvement thermal and mechanical properties. In addition, the results obtained in this study provide new insights into the use of EFS as a coupling agent of water‐based acrylate adhesives for wood‐fiber composites, as well as in the particleboard panels industry. EFS (epoxy functional silane)
ISSN:0032-3888
1548-2634
DOI:10.1002/pen.26105