Chemical studies about the durability of polypropylene geotextiles

• Type: Article in International Conference Proceedings Book
• Date: 2010

Authors

Valente, IM (Author) Other; Carneiro, JR (Author) Other; Almeida, PJ (Author) FCUP; Lopes, ML (Author) Other

Conference proceedings International

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

Pages: 785-788

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

Guaruja, 23 May 2010 through 27 May 2010

Indexing

ISI Web of Knowledge

Scopus - 5 Citations

Scientific classification

CORDIS: Technological sciences > Engineering > Civil engineering

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific