Hole Formation Films: Difference between revisions
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When analysing damage to [[Thermoplastic Material|thermoplastic]] products (see: [[Failure Analysis – Basics|failure analysis – basics]]), damage caused by faulty design, processing and material selection, as well as defects (see also: [[Errors|errors]]) in the matrix material and additives, or even defects that occur during use, are analysed using [[Polymer Testing|polymer testing]] and [[Polymer Diagnostic|diagnostic]] methods (see also: [[Failure Analysis Plastics Products, VDI Guideline 3822|damage analysis of plastic products, VDI Guideline 3822]]). | When analysing damage to [[Thermoplastic Material|thermoplastic]] products (see: [[Failure Analysis – Basics|failure analysis – basics]]), damage caused by faulty design, processing and material selection, as well as defects (see also: [[Errors|errors]]) in the matrix material and additives, or even defects that occur during use, are analysed using [[Polymer Testing|polymer testing]] and [[Polymer Diagnostic|diagnostic]] methods (see also: [[Failure Analysis Plastics Products, VDI Guideline 3822|damage analysis of plastic products, VDI Guideline 3822]]). | ||
Damage that occurs during the use of plastic products can cause a variety of damage patterns. In the context of the ‘[[ | Damage that occurs during the use of plastic products can cause a variety of damage patterns. In the context of the ‘[[Lexicon Polymer Testing & Diagnostics|Wiki-lexicon Polymer Testing & Diagnostics]]’, the damage phenomenon ‘[[Hole Formation Plastics|Hole formation plastics]]’ is examined using examples from the evaluation of the [[Deformation|deformation]] and [[Fracture Behaviour|fracture behaviour]] of [[Fibre-reinforced Plastics|fibre-reinforced plastics]], particularly at the fibre/matrix [[Fibre-Matrix Adhesion|interface]]. Two examples of this are listed under | ||
* [[Fibre-Matrix Adhesion|Fibre–matrix adhesion]] and | * [[Fibre-Matrix Adhesion|Fibre–matrix adhesion]] and | ||
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* [[Instrumented Adhesion Test|Instrumented adhesion test]] | * [[Instrumented Adhesion Test|Instrumented adhesion test]] | ||
==References== | |||
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Hole formation films
General information
When analysing damage to thermoplastic products (see: failure analysis – basics), damage caused by faulty design, processing and material selection, as well as defects (see also: errors) in the matrix material and additives, or even defects that occur during use, are analysed using polymer testing and diagnostic methods (see also: damage analysis of plastic products, VDI Guideline 3822).
Damage that occurs during the use of plastic products can cause a variety of damage patterns. In the context of the ‘Wiki-lexicon Polymer Testing & Diagnostics’, the damage phenomenon ‘Hole formation plastics’ is examined using examples from the evaluation of the deformation and fracture behaviour of fibre-reinforced plastics, particularly at the fibre/matrix interface. Two examples of this are listed under
Hole formation in a biopolymer film
Another example of the damage phenomenon ‘Hole formation’ as a result of artificial weathering is shown in Figure 1 [1]. A conventionally available biopolymer film (see also: bio-plastics) with the trade name Mater-Bi® (mulch film), a starch blend based on corn starch, with a thickness of 15 µm was subjected to 30 hours of artificial weathering.
| Fig. 1: | Hole formation in a Mater-Bi® mulch film after 30 hours of artificial weathering |
Figure 1 shows a surface damaged by artificial weathering. Holes have begun to form, and it is clear that damage to the surface of the biopolymer film is beginning.
See also
- Hole formation plastics
- Film testing
- Fracture behaviour
- Hybrid methods, example
- Instrumented adhesion test
References
| [1] | Monami, A., Langer, B., Grellmann, W.: Modern Methods of Polymer Testing for Material Development and Testing of Components. Werkstoffprüfung 2016, Fortschritte in der Werkstoffprüfung für Forschung und Praxis 1. and 2.12.2016, Neu-Ulm, Proceedings pp. 119–124 (ISBN 978-3-514-00830-4) |