The tensile properties of a polymer material quantifies; how much stress will the material endure before suffering permanent deformation. This is very important in applications that rely upon a polymer's physical strength or durability. In general, tensile strength increases with polymer chain length and crosslinking of polymer chains. I need to measure the Young's modulus of an electrospun single polymer nanofiber. Is there any issue for sample preparation? Which instruments would be helpful for this?
My suspicion is that a UTM may not have sufficient sensitivity to detect the modulus of a single or even 2-3 polymer nanofiber (I am assuming that the fiber has nano-micrometer scale dimensions). If however, you are using the nanofiber in the form of a macroscopic braid of some sort, it may work. You will have to form a mechanical model of the structure of such a composite material and back out the value for a nano-fiber.
Direct measurement of single fiber may need an AFM or a calibrated glass micropipet depending on the force regime. There exist many good references on such measurements. You may find some useful information in Chung et al, 2009, and Tan et al, 2003. You should be able to find the papers in my profile. Best of luck - Kiran
Try to analyse samples using a universal testing machine( UTM). Fix two three fibers together in the clamps if strength is too low to detect. Check ASTM D3822-07 for detailed information.
My suspicion is that a UTM may not have sufficient sensitivity to detect the modulus of a single or even 2-3 polymer nanofiber (I am assuming that the fiber has nano-micrometer scale dimensions). If however, you are using the nanofiber in the form of a macroscopic braid of some sort, it may work. You will have to form a mechanical model of the structure of such a composite material and back out the value for a nano-fiber.
Direct measurement of single fiber may need an AFM or a calibrated glass micropipet depending on the force regime. There exist many good references on such measurements. You may find some useful information in Chung et al, 2009, and Tan et al, 2003. You should be able to find the papers in my profile. Best of luck - Kiran
The Young's modulus was measured by my group for a new biopolymer of methacrylic to be used as Bone cements for vertebroplasty. I suggest you to read experimental conditions plus equipment in our publication:
"A highly radiopaque vertebroplasty cement using tetraiodinated o-carborane additive"
Author(s): Pepiol, A (Pepiol, Ariadna)[ 2 ] ; Teixidor, F (Teixidor, Francesc)[ 2 ] ; Saralidze, K (Saralidze, Ketie)[ 1 ] ; van der Marel, C (van der Marel, Cees)[ 3 ] ; Willems, P (Willems, Paul)[ 4 ] ; Voss, L (Voss, Laura)[ 4 ] ; Knetsch, MLW (Knetsch, Menno L. W.)[ 1 ] ; Vinas, C (Vinas, Clara)[ 2 ] ; Koole, LH (Koole, Leo H.)[ 1 ]
Source: BIOMATERIALS Volume: 32 Issue: 27 Pages: 6389-6398 DOI: 10.1016/j.biomaterials.2011.05.056 Published: SEP 2011
Write me ([email protected]) in the case you want a reprint.
Thanks Prof. Clara for your suggestion. Your publications could provide a new incite to my research work.
Hallo
I can measure mechanical properties of polymer fibres wit diameter about 1 micron using UTM Ti150 from Agilent (today Keysight).
Please find in my profile the recommendation for an article related with your problem. AFM for Youngs Module measurement
DOI: 10.2174/187221011794474985
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