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'Tamarins Road' project using TOTAL polypropylene
04 Feb '08
4 min read
Metallocenes achieve a very narrow molecular weight distribution in a highly controlled way, resulting in polymer chains with very uniform length and nature. Total Petrochemicals metallocene grades are specially formulated to suit the spunbond process used to produce nonwovens.
Their narrow molecular weight distribution results in low elongational viscosity, which makes them ideal for the fast drawing of continuous filaments forced by an airflow.
Their low gel content and high product consistency prevent fiber breaks, which tend to disrupt production and weaken nonwovens. Total Petrochemicals metallocene resins are an ideal choice for geotextile applications requiring very strong nonwovens, because of the much higher filament tenacity they allow.
This fiber strength is directly transmitted to the nonwovens through the bonding process used by TenCate in producing its Bidim geogrid. Sustainable development Stronger nonwovens mean higher-performance geotextile, and they can also help reduce product weight while still meeting mechanical requirements.
This downgauging reduces the environmental footprint of the nonwovens left in the ground as part of construction. Production processes are cleaner too: at TenCate's plant, the fumes that are usually emitted by the high-temperature spunbond process are reduced by a factor of 4 to 5 thanks to the use of more environment-friendly metallocene grades.
A high-tech solution, and aesthetic too! Given the shape and dimensions of the embankments required for the new road, project engineers opted for a geotextile with elongation resistance of 95 kN/meter.
Between them, the two structures required several thousand square meters of geotextile. The embankments are made from layers of landfill (crushed local basalt) interspersed with layers of geotextile.
Then to avoid disfiguring the landscape, stonemasons are cladding the embankment walls with volcanic stone that is typical of the island landscape. A happy marriage between technical innovation and aesthetic quality.
Their narrow molecular weight distribution results in low elongational viscosity, which makes them ideal for the fast drawing of continuous filaments forced by an airflow.
Their low gel content and high product consistency prevent fiber breaks, which tend to disrupt production and weaken nonwovens. Total Petrochemicals metallocene resins are an ideal choice for geotextile applications requiring very strong nonwovens, because of the much higher filament tenacity they allow.
This fiber strength is directly transmitted to the nonwovens through the bonding process used by TenCate in producing its Bidim geogrid. Sustainable development Stronger nonwovens mean higher-performance geotextile, and they can also help reduce product weight while still meeting mechanical requirements.
This downgauging reduces the environmental footprint of the nonwovens left in the ground as part of construction. Production processes are cleaner too: at TenCate's plant, the fumes that are usually emitted by the high-temperature spunbond process are reduced by a factor of 4 to 5 thanks to the use of more environment-friendly metallocene grades.
A high-tech solution, and aesthetic too! Given the shape and dimensions of the embankments required for the new road, project engineers opted for a geotextile with elongation resistance of 95 kN/meter.
Between them, the two structures required several thousand square meters of geotextile. The embankments are made from layers of landfill (crushed local basalt) interspersed with layers of geotextile.
Then to avoid disfiguring the landscape, stonemasons are cladding the embankment walls with volcanic stone that is typical of the island landscape. A happy marriage between technical innovation and aesthetic quality.
Total Petrochemicals USA Inc
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