Dimensional Stability and Process Capability of an Industrial Component Injected with Recycled Polypropylene
| Autor: | Daniel Elduque, Carlos Javierre, Isabel Clavería, José Eduardo Galve, R. Acero, Carmelo Pina, Ángel Fernández |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Polymers and Plastics Process capability 02 engineering and technology 010402 general chemistry medicine.disease_cause Coordinate-measuring machine 01 natural sciences Stability (probability) Article lcsh:QD241-441 chemistry.chemical_compound lcsh:Organic chemistry Mold Component (UML) warpage medicine Process engineering Shrinkage chemistry.chemical_classification Polypropylene dimensional business.industry process capability General Chemistry Polymer 021001 nanoscience & nanotechnology recycled 0104 chemical sciences shrinkage chemistry injection 0210 nano-technology business polypropylene |
| Zdroj: | Polymers Polymers, Vol 11, Iss 6, p 1063 (2019) Volume 11 Issue 6 Zaguán. Repositorio Digital de la Universidad de Zaragoza instname |
| Popis: | The usage of recycled polymers for industrial purposes arises as one of the most promising methods of reducing environmental impact and costs associated with scrapping parts. This paper presents a systematic study of the dimensional stability of a raw and 100% recycled polypropylene subjected to realistic environmental conditions occurring along its working life. The component studied is an internal part of an induction hob assembly. Industrial samples manufactured with both materials, in the same mold, and in the same injection machine, are subjected to ejection conditions, storage conditions (50 ° C), and extreme performance conditions (80 ° C). Induced dimensional changes are registered and analyzed using a coordinate measuring machine, and a tactile sensing probe. To verify the process capability of the samples manufacturing, Cp and Cpk values are calculated to evaluate the suitability of the recycled material as an alternative. Results conclude that, although the use of recycled material implies slight differences in terms of dimensional stability due to the changes induced in the polymer structure, these differences are not significant enough to affect the injection process capability. Therefore, recycling arises as one effective method to reduce both overruns associated with the consumption of raw polypropylene material and its environmental impact. |
| Databáze: | OpenAIRE |
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