Why geotextile has different color of black and white?
Why geotextile has different color of black and white?
Each type of geotextile has its own characteristics. Geotextiles are used in a wide range of applications, but they are not generalized in every field.For example, a thicker black (carbon black) or geotextile with an anti-aging (antioxidant, light stabilizer, etc.) additive should be used for the unprotected or thinner protective layer.In areas where penetrating plants such as reeds require drainage under the membrane and improve the stability of the protective layer, geotextiles may be laid under geotextiles or HDPE geotextiles may be used.
Since there is black, there will be white geotextiles. Here is a brief introduction to the difference between the two:
1. Different raw materials: black geotextiles are mostly HDPE (high density polyethylene) geotextiles, and white geotextiles are mostly LDPE (low density polyethylene) geotextiles.The two are mainly different in density and performance. The former has a higher density and the latter has a lower density. The former is mostly used as a geotechnical engineering material, and the latter is used as a film product.
2. The masterbatch is different: the reason why the geotextile cloth is black is because the geotextile is added with a black color masterbatch during the production. This masterbatch pellet is added to the geotextile production process proportionally. Usually, a small amount The color masterbatch can process a large amount of geotextiles, and the geotextile masterbatch particles are easy to process, and it does not affect the quality of the geotextile.
3. Different densities: Because the density of HDPE black geotextiles is greater than that of LDPE white geotextiles, the two or two uses will be different. The overall quality comparison needs to be compared according to the application of the two in the same type of construction. To compare (unmatched). The two will be used differently in different constructions, and sometimes they will be substitutes for each other.
4. Different ductility: white LDPE geotextile has better ductility than black HDPE geotextile, and its flexibility is stronger than black HDPE geotextile. White LDPE geotextile which meets engineering specifications is also a new generation of geotechnical anti-seepage material. The ability is also stronger than the black HDPE geotextile in the same project, and now many products can also see the product.
