Chemical studies about the durability of polypropylene geotextiles

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2010

Autores

Valente, IM (Autor) Outra; Carneiro, JR (Autor) Outra; Almeida, PJ (Autor) FCUP; Lopes, ML (Autor) Outra

Ata de Conferência Internacional

Título: 9th International Conference on Geosynthetics - Geosynthetics: Advanced Solutions for a Challenging World, ICG 2010

Páginas: 785-788

9th International Conference on Geosynthetics - Geosynthetics: Advanced Solutions for a Challenging World, ICG 2010

Guaruja, 23 May 2010 through 27 May 2010

Indexação

ISI Web of Knowledge

Scopus - 5 Citações

Classificação Científica

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia civil

Outras Informações

ID Authenticus: P-009-SB4

Abstract (EN): The exposition to solar radiation (mainly due to ultraviolet radiation) can lead to a premature failure of many polymeric materials, including the geotextiles. An extended exposure to ultraviolet radiation may cause damages in the polymeric structure of the geotextiles, shortening their useful lifetime. In this work, a needle-punched nonwoven geotextile (stabilised with 0.4% of Chimassorb 944) was exposed to ultraviolet radiation, both under natural and artificial conditions. The photo-degradation suffered by the exposed samples was evaluated by infrared spectroscopy. Simultaneously, the level of Chimassorb 944 was monitored by high performance liquid chromatography with ultraviolet detection.

Idioma: Inglês

Tipo (Avaliação Docente): Científica