Applications of geotextiles made of PET-filament-based nonwoven fabrics

Abstract

Climate change has been occuring in recent years. The extraordinary changes lead to high temperatures, floods, and typhoons that become a significant threat to people's lives and property. Therefore, engineering methods have become important, as they decrease the level of people's loss caused by natural disasters. Synthetic fibers have been commonly used in geotechnical engineering field since their invention, and are now widely available. Whether geotextiles are made using fabrics or nonwoven fabrics, water permeability and appropriate strength are their indispensable properties in reinforcement, separation, filtration, drainage, and protection. In this study, polyester (PET) filaments and nonwoven fabrics are combined using hot pressing, during which different weight amounts of filament are used. The composites are tested for delamination strength, tensile strength, tear strength, burst strength, and puncture strength to characterize the filament-based geotextiles. The experimental results show that a high needle punching depth has a negative influence on the strengths of geotextiles. Moreover, the geotextiles exhibit the optimal tensile and tearing strength when they are hot pressed at 170 o C, and optimal burst strength and puncture strength when they are hot pressed at 180 o C.

Facile Preparation of PET/PA6 Bicomponent Microfilament Fabrics with Tunable Porosity for Comfortable Medical Protective Clothing

“…Additionally, when comparing all samples, there is a substantial variation in the tensile strength of the samples along the MD and CD due to the increased number of fibers along the MD. This finding contradicts prior expectations. , Figure d indicates the stress–strain curves of the treated and untreated samples. Compared with the untreated sample, the treated sample had a more significant increase in stress and strain.…”

“…This finding contradicts prior expectations. 38,39 Figure 5d indicates the stress−strain curves of the treated and untreated samples. Compared with the untreated sample, the treated sample had a more significant increase in stress and strain.…”

A Review of Sustainable Approaches in Geo Textiles for Environment Conservation

“…One major drawback of aramid fibers is their high production cost, and it limited the use of these fibers in geotextiles. In their stead, recycled Kevlar® fibers were employed for soil reinforcements in various geotextiles: as fiber in hybrid fibers [71,72], as a component in complex structures such as needle-punched nonwoven geotextiles, in combination with PET and PP fibers or PET and nylon fibers, in epoxy-or PET-based composites as a reinforcing component and in hybrid woven-nonwoven sandwich structures where nylon fabric was employed as an interlayer [73][74][75][76]. Other aramid fibers, such as Twaron® and Technora®, were also considered for geotextiles, as tridimensional nonwoven composites with epoxy resin as the polymer matrix [77].…”

Tensile, electromagnetic, and far‐infrared properties of stainless steel/far‐infrared polyester composite materials

“…Textiles, in accordance with their manufacturing process, can be divided into several types such as woven fabrics, knitted fabrics, and nonwoven fabrics . Textiles possess many advantages such as light weight, fast manufacturing process, and a variety of materials, and thus play an important role in our daily life.…”