Polypropylene non-woven geotextile-丙纶无纺土工布

Introduction to polypropylene geotextile:

Polypropylene geotextile mainly includes woven geotextile, non-woven geotextile, geomembrane, and composite geotextile. Weaving geotextile is further divided into machine woven geotextile and woven geotextile.

Characteristics of polypropylene geotextile:

1-Polypropylene woven geotextiles are produced on wide shuttle looms or shuttle less looms such as grippers and rapiers.

Polypropylene woven geotextile is more suitable for its reinforcement and reinforcement function, so it can generally be used for separation, reinforcement, and erosion control applications.

2-Non woven polypropylene geotextile

Non woven geotextiles are generally produced on a continuous production line. Polypropylene nonwoven geotextiles are mainly divided into two types according to production processes: spunbond method and short fiber needle punching method.

Production method of polypropylene geotextile:

1. Spunbonded method

Melt polymer particles or powders, then enter an extruder and spin them into continuous long bundles through one or a series of spinnerets. By rotating the spinneret or controlling the airflow, changing the speed of the conveyor belt, and applying current, the filaments are arranged irregularly and laid on the conveyor belt to form a fiber network. The bonding of fiber mesh is the process of using hot pressing or adhesive bonding, or mechanical reinforcement with needles, to form a continuous and uniform geotextile before the filament has solidified. It can be used in various projects such as reinforcement, separation, filtration, and drainage.?

2-Short fiber puncture method

Short fibers are formed into a cotton web by a carding machine or waste cotton opening mechanism, and then laid in a cross layer or directly arranged by an air flow forming mechanism to achieve isotropy during fabric formation. Then, a group or groups of needle plates composed of a large number of needles are used to needle the fiber web, causing the fibers to entangle and squeeze together, forming a non-woven fabric. This method is suitable for producing thick geotextiles, which are characterized by high density, fluffy structure, thicker thickness, good water absorption and permeability, and strong deformation resistance. It is particularly suitable for filtration and drainage engineering.