Long silk spunbond needle punched nonwoven geotextile

Description

Continuous Filament Needle Punched Nonwoven Geotextile is produced from polyester (PET) or polypropylene (PP) continuous filaments through needle punching processes, forming a three-dimensional structure. Long silk spunbond needle punched nonwoven geotextile exhibits excellent mechanical and hydraulic properties, making it widely applicable in civil engineering, water conservancy projects, and road and railway constructions for functions such as reinforcement, separation, filtration, drainage, and protection.

Key Specifications

Features

- UV Resistance

- High-Temperature Resistance (up to 230°C), maintaining structural stability and original physical properties.

- High In-Plane Drainage and Vertical Permeability

- Excellent Creep Resistance

- Resistance to Chemical Corrosion in Soil, as well as Gasoline and Diesel

- High Elongation Under Stress**, enabling adaptation to uneven and irregular substrates.

Function

• Permeability & Filtration: Geotextiles provide excellent breathability and water permeability, allowing efficient drainage while preventing soil erosion and sand/gravel loss.
• High Hydraulic Conductivity: Forms effective drainage channels to remove excess liquids and gases through evaporation.
• High Permeability Under Pressure : Maintains superior water permeability even under soil and hydraulic pressure.
• Stress Distribution:Effectively disperses, transfers, or decomposes concentrated stresses to protect soil from external damage.
• Layer Separation : Prevents intermixing of adjacent sand, soil, and concrete layers.
• Chemical Resistance: Made from polypropylene (PP) or polyester (PET) fibers, offering resistance to acids, alkalis, corrosion, oxidation, and heat.
• Lightweight & Easy Installation: Reduces construction time, lowers costs, and improves economic efficiency.
• Soil Reinforcement: Enhances soil tensile strength and deformation resistance, improving structural stability and soil quality.

Purpose

• Filtration Material for Soil Layer Separation.
• Drainage Material， for reservoirs, mineral processing, and high-rise building foundations.
• Erosion Control Material，for river embankments and slope protection.
• Reinforcement Material，for roadbeds (railways, highways, airport runways) and swamp road construction.
• Frost & Freeze Protection Insulation Material.
• Anti-Cracking Material， for asphalt pavements.

Application scenarios