Micro-CT Applications for Analysis of Adhesive Bonds in Wood

April 2018: Micro-CT Applications for Analysis of Adhesive Bonds in Wood

CREDIT: Showing polyurethane distribution in Southern pine wood samples: fluorescence micrograph shown in cross-section view (RT plane) of parallel laminated wood. F. Kampke, et al, Dept. Wood Science & Engineering, Oregon State University.

Micro X-ray computed tomography study of adhesive bonds in wood

Micro-CT was used in this study to investigate whether adhesive penetration influences stress transfer from one substrate to the next. The researchers developed a numerical model to simulate wood-composite joint performance that quantitatively accounts for the role of adhesive penetration.

READ MORE on using micro-CT to study adhesive bonds in wood, from SWST (International Society of Wood Science and Technology) meeting presentation.

Visualization and numerical analysis of adhesive distribution in particleboard using X-ray micro-computed tomography

Micro-CT scanning is being used to visualize the distribution of melamine–urea–formaldehyde adhesive in particleboard, and to examine changes in adhesive distribution on wood flakes before and after pressing. The study demonstrates how adhesive migrates under pressure and is mainly aligned in the same xy direction as wood flakes, thus forming an anisotropic discontinuous network.

READ MORE on using micro-CT to study adhesives in wood composites from the International Journal of Adhesion and Adhesives.

Characterization of PVAc adhesive penetration and its effect on wood properties

The penetration of adhesive into wood is an important factor that may enhance the durability of adhesive bonds. In this study, the diffusion of adhesive polyvinyl acetate (PVAc) into the cell walls of various types of wood was evaluated by micro-CT. As the penetration of PVAc increased, the variation in the observed bond strengths was not substantial. Some correlations were found between glue penetration and glue line thickness measured using micro-CT.

READ MORE about PVAc adhesive penetration in wood from Advanced Materials Research.

Quantitative wood-adhesive penetration with X-ray computed tomography

For non-destructive insight into wood-adhesive penetration, micro-CT is a valuable tool. In this study, the 3D adhesive penetration behavior of three different wood-adhesive bondlines was analyzed: a phenol formaldehyde (PF), a polymeric diphenylmethane diisocyanate (pMDI), and a hybrid polyvinyl acetate (PVA). Clear penetration differences were observed between each adhesive type as well as between wood species bonded with both the PF and pMDI adhesives. 3D views of segmented 3D adhesive phases offered unique, in-situ views of the cured adhesive structures.

READ MORE about micro-CT quantification of wood-adhesive penetration, from the International Journal of Adhesion and Adhesives.

Related Products

Related Articles

Call Now Button

Coming Soon:

Customer access to tips and instructional videos, method notes, tutorials, application notes, and other content to support your research.


While we are not currently looking to fill a specific position at Micro Photonics, if helping others advance their research is something you are passionate about, then feel free to send us your resume so that we can keep it for further considerations when a position does become available.

Please submit resumes to: info@microphotonics.com

Micro Photonics Inc.
1550 Pond Road, STE 110
Allentown, PA 18104


Due to Covid-19 restrictions, we will not be attending tradeshows in the near future. We are participating in webinars and virtual tradeshows and will post links to those as they are available.

Privacy Policy

What information do we collect? We collect information from you when you register on our site, place an order, subscribe to our newsletter or fill out a form. When ordering or registering on our site, as appropriate, you may be asked to enter your: name, e-mail address, mailing address, phone number or credit card information. You may, however, visit our site anonymously.
What do we use your information for? Any of the information we collect from you may be used in one of the following ways:

; To personalize your experience (your information helps us to better respond to your individual needs).

; To improve customer service (your information helps us to more effectively respond to your customer service requests and support needs).

; To process transactions. Your information, whether public or private, will not be sold, exchanged, transferred, or given to any other company for any reason whatsoever, without your consent, other than for the express purpose of delivering the purchased product or service requested.

; To send periodic emails .The email address you provide for order processing, will only be used to send you information and updates pertaining to your order.Note: If at any time you would like to unsubscribe from receiving future emails, we include detailed unsubscribe instructions at the bottom of each email.

Terms and Conditions

Terms of Service for www.microphotonics.com

Introduction. Welcome to www.microphotonics.com. This website is owned and operated by Micro Photonics Inc. By visiting our website and accessing the information, resources, services, products, and tools we provide, you understand and agree to accept and adhere to the following terms and conditions as stated in this policy (hereafter referred to as ‘User Agreement’), along with the terms and conditions as stated in our Privacy Policy (please refer to the Privacy Policy section below for more information).

This agreement is in effect as of October 25, 2018.

We reserve the right to change this User Agreement from time to time without notice. You acknowledge and agree that it is your responsibility to review this User Agreement periodically to familiarize yourself with any modifications. Your continued use of this site after such modifications will constitute acknowledgment and agreement of the modified terms and conditions.

Responsible Use and Conduct. By visiting our website and accessing the information, resources, services, products, and tools we provide for you, either directly or indirectly (hereafter referred to as ‘Resources’), you agree to use these Resources only for the purposes intended as permitted by (a) the terms of this User Agreement, (b) the terms of any applicable confidentiality, non-disclosure, or other agreement between you and a third party, and (c) applicable laws, regulations and generally accepted online practices or guidelines.

US Partner Form