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Influence of topographical features on the surface appearance measurement of injection moulded components

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10.1016/j.polymertesting.2020.106968
 
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Gamonal Repiso, PabloMés informació
Abt, Tobias MartinMés informacióMés informacióMés informació
Sánchez Soto, MiguelMés informacióMés informacióMés informació
Santos Pinto, Soledad
Maspoch Rulduà, Mª LluïsaMés informacióMés informacióMés informació
Document typeArticle
Defense date2021-01
PublisherElsevier
Rights accessOpen Access
Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
Abstract
Adding textures to surfaces is known to improve the external appearance of injection moulded components. However, when high surface quality is required, normally a paint coating is applied on top of the moulded textured surface. In this work, an alternative to painting for obtaining high quality surfaces is proposed, following an environmental-friendly process and having low production cost. Three different surface textures obtained by injection moulding have been characterized and compared with a painted one. Alternative topographical parameters such as the absolute functional height (AFH), the functional height distribution (FHD), texture slope (TS) or texture aperture angle (TAA) besides to the traditional roughness parameters such as the arithmetical mean height (Sa) and the root mean square height (Sq) have been utilized to characterize the random surface textures. The relationships between these parameters and the surface quality appearance represented by gloss and reflectivity contrast have been established using a new total appearance measurement (TAM) apparatus. It was found that by applying secondary operation on the textured mould cavity, such as adding micro roughness features or coatings, equal apparent quality to the ones obtained by painting can be reached.
CitationGamonal, P. [et al.]. Influence of topographical features on the surface appearance measurement of injection moulded components. "Polymer testing", Gener 2021, vol. 93, p. 106968:1-106968:11. 
URIhttp://hdl.handle.net/2117/335407
DOI10.1016/j.polymertesting.2020.106968
ISSN0142-9418
Publisher versionhttps://www.sciencedirect.com/science/article/pii/S0142941820321978?via%3Dihub
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