The
high quality PET non woven geotextile should be protected from damage before installation. The geotextile rolls should be stacked in a place where there is no water accumulation, the height of the pile should not exceed four rolls, and the identification piece of the roll can be seen. Resistance strain gauge measurement is commonly used in strain measurement of geosynthetic materials. In this method, the strain gauge is attached to the surface of the object to be tested, and the strain change process of the measured point is recorded by the principle that the resistance of the strain gauge changes with the mechanical deformation of the object to be measured.
The
wholesale long fibre filament needle punched geotextile has the advantages of lightweight, low cost, corrosion resistance, anti-filtering, drainage, isolation, reinforcement, etc. The following is a high quality PET non woven geotextile production method. The short-fiber needle-punched short-fiber combing machine or the waste cotton opening machine is used to make a cotton net.
Then, the air mesh is arranged in a cross-stack, or directly formed by an air-laid machine to achieve the isotropic property of the cloth, and then a set of needles or a plurality of sets of needles are used to perform the needle-punched fiber web. The fibers are entangled with each other and pressed together to form a nonwoven fabric. This method is suitable for the production of thick geotextiles. It is characterized by high density, fluffy structure, thick, good water absorption and water permeability, and high resistance to deformation. It is especially suitable for filtration and drainage projects.
The spunbond process melts the particles or powder of the polymer and then enters the extruder and is spun into a continuous filament bundle through one or a series of spinnerets. The filaments are then irregularly arranged by rotating the spinneret or by controlling the air flow, changing the speed of the conveyor belt, passing current, etc., and laying them on a conveyor belt to form a fiber web. The bonding of the web is carried out by hot pressing or bonding with a binder, or by needle punching, to form a continuous uniform high quality PET non woven geotextile. It can be used in various projects such as reinforcement, separation, filtration, and drainage.
