Hi! I am trying to make tensile dog bones of PVA for mechanical testing using compression molding but I am having some issues.
At first, I am just trying to make films using the hot press before moving on to the dogbone mold. I cannot get the PVA to start melting until about 230C. At that point, the PVA yellows quite a bit, likely due to thermal degradation. Additionally, there are still a lot of bubbles in the film that I cannot seem to get out.
What is the best way to make tensile dogbones of PVA for mechanical testing?
Thanks!
Dear sir, please read useful to you
1.Article Behaviour of engineered cementitious composites and hybrid e...
2.https://www.tandfonline.com/doi/abs/10.1080/24705314.2020.1823558?journalCode=tstr20
3. https://www.mdpi.com/2073-4360/13/6/949/htm
4. https://www.ias.ac.in/article/fulltext/sadh/046/0109
Respected Sir,
I suggest you to go for Fused Deposition Modeling (FDM) technique to prepare dog bone shaped specimens of PVA.
Refer the link for more details:
https://doi.org/10.1016/j.compscitech.2019.01.004
Hope this information is useful.
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