PENETRATION DEPTH OF ADHESIVE DEPENDING ON APPLIED PRESSURE DURING GLUING PROCESS
Published: 2 Jun 2014
Abstract: Wood is one of the key raw materials that are used in constructions. The research of the adhesive joint properties is important to characterize the overall design of the wood construction. To achieve good joint performance and durability it is important to adhesive penetrate into wood substrate deep enough. Adhesive penetration is influenced by many factors such as wood, adhesive and process factors. The objective of the present paper is comparison of the polyurethane (PU) glues penetration depth into Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies) wood depending on applied pressure. Penetration depth of cured adhesive was determined using fluorescence microscopy. Obtained results of the bond-line width had the good correlation with applied pressure value.
Keywords: softwood, polyurethane glue, applied pressure, penetration, fluorescence microscopy
Download full text
Back to the contents of the volume
© 2019 The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/3.0/
, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. This permission does not cover any third party copyrighted material which may appear in the work requested.