Papers by Author: Wen Hao Hsing

Abstract: In this study the experiment used the two kinds of fibers, respectively are the recycled far-infrared polyethylene terephthalate (RFPET) fibers and the low melting temperature polyethylene terephthalate (LPET) fibers. Needle punching and compare with laminated in different layers, through hot pressing to make the fabric thin, observation and testing , surface observation, air permeability test, stiffness test, and far infrared emissivity test. The study shows the far-infrared radiation rate and will not increase because of the laminate, but is a relationship with a thickness comparison.

Abstract: Geotextile has been commonly used in civil and geotechnical engineering applications, and the majority of geotextiles is made of nonwoven fabrics. Therefore, this study combines crimped polyester (PET) fibers, recycled Kevlar unidirectional selvage fibers, and low-melting-point PET (LPET) fibers to form PET/Kevlar/LPET nonwoven geotextiles, and then examines how various neelde-punch depths influence mechanical properties of the resulting nonwoven geotextiles. The tensile strength, tearing strength, bursting strength, and static puncture resistance of the nonwoven fabrics increase as a result of an increase of 0.3 cm to 0.5 cm in needle-punch depth. However, an increase of 0.5 cm to 0.7 cm causes a slight decrease in all aforementioned properties.

Abstract: Non-woven textile industry in an emerging field, with the process short, high yield, low cost and wide source of raw materials, but also has excellent performance of many functions on, making non-woven over the past half century gained textiles attention and consumers of all ages. The proportion of the world of non-woven fiber material used in the product, 85% in rayon ,and the other 15% in natural fibers, polyester fibers which accounted for the largest proportion of use. The experiment uses a low melting point polyester fiber (LPET) 20%, three-dimensional hollow curly polyester fiber (TPET) and recycled far infrared fiber (REPET) 40% each as the basic conditions change pressing temperature 100 °C-140 °C, in order to observe and compare the effects of temperature on the non-woven fabric, this experiment tests including air permeability, tensile strength testing, infrared testing and SEM, respectively in different hot pressing temperature, each of the non-woven hot pressing temperatures sample go through microscopic to analysis for non-woven with the hot temperatures strong reason to improve or decline with hot temperature of air permeability.

Abstract: Heat energy plays a significant role in resources and industries, which makes the development of energy-saving and thermal retention materials important to environment protection. This study combines three-dimensional hollow Polyethylene Terephthalate (TPET) fibers, recycled far-infrared polyethylene terephthalate (RFPET) fibers, and low melting temperature polyethylene terephthalate (LPET) fibers at various ratios to make the RFPET/TPET hybrid nonwoven fabric. The tensile strength, tearing strength, air permeability, and far infrared emissivity of the fabrics are evaluated. With a blending ratio of 8:0:2, the hybrid nonwoven fabrics have the optimum tensile strength of 145 N, tear strength of 184 N, and air permeability of 205 cm³/cm²/s.

Abstract: Geotextiles have been commonly used globally, making the control of material selection to influence geotextiles properties an important research topic. This study aims to explore the effects of the ratio of high-strength polyethylene terephthalate (HPET) fiber to Kevlar fiber on hybrid geotextiles. At the first stage, HPET and polyethylene terephthalate (PET) fiber are combined to make HPET/PET hybrid geotextile and then tested for porosity and water permeability, determining the optimum HPET/PET ratio. At the second stage, with a content of 60 % PET fibers, HPET fibers and Kevlar fibers are mixed with various ratios to form Kevlar/HPET/PET hybrid geotextiles. The experimental results show that with an increase in the content of HPET fibers, the porosity and water permeability of the Kevlar/HPET/PET hybrid geotextile decrease.

Abstract: This study produces composite geotextile, and evaluates its effectiveness of being used for soil protection. Kevlar fibers, high strength polyethylene terephthalate (HPET) fibers, recycled polyethylene terephthalate (RPET) fibers, and nylon grids are made into Kevlar/PET/Nylon composite geotextiles, which are then tested for air permeability, and tensile, tearing, and bursting strength. The experimental results show that when the ratio of Kevlar fibers to HPET is 0/40, the resulting composite geotextile has the optimum mechanical properties, where the tensile strength is approximately 990 N, tearing strength is approximately 890 N, bursting strength is approximately 3700, and an air permeability is around 35 cm³/cm²/s.

Abstract: The successive civilengineering disasters in recent years make the use of geomaterial for disaster prevention popular. Geogrids, one type of geo-material, function as soil reinforcement. This study uses polypropylene (PP) fibers to wrap high strength polyester (HSPET) fibers, forming the PP/HSPET fasciated yarn. PP fibers are acid-resistant and alkali-resistant, and thus serve as the skin of the fasciated yarn. HSPET fibers, the core of the fasciated yarn, protect and prolong the service life of the resulting geo-material products. Finally, the influence of mechanical parameters on the appearance and strength of the fascinated yarn is explored.

Abstract: This study uses Far-infrared fiber (FIR), PET fiber, and Low-Tm PET fiber to prepare FIR/PET/Low-Tm PET composite nonwoven. In the processing, the FIR fiber was constant as 10 wt%, and low-Tm PET fiber was varied from 10, 30, 50, 70 and 90 wt% in order to understand thermo-bonding effect on nonwovens. After being hot-pressed, the FIR/PET Low-Tm PET composite nonwoven was evaluated in terms of tensile strength, bursting strength, air permeability, stab resistance and FIR emissivity. The study shows that tensile strength along cross machine (CD) is higher than that along machine direction (MD), and stronger with increase of low-Tm PET fiber. However, the bursting strength and stab resistance generates the weak property only at 50 wt% of low-Tm PET fibers. The air permeability and far-infrared emissivity display optimal when the low-Tm PET fiber contained 90 wt%.

Abstract: Recently environmental protection have been responded to by people. In this experiment, nonwoven selvages were smashed and then secondary used to prepare water-retaining geotextiles for achieving recovery effect. The geotextiles consisted of 6D recycled high-strength PET (RPET) fibers taken from nonwoven selvages. The RPET composite geotextiles were prepared after the 1000 D high-strength PET was blended with different ratios of the RPET fibers. Afterwards, their busting strength, air permeability and porosity were mainly discussed to acquire the best blending ratio. The result shows that, the bursting strength is reinforced but the air permeability is decreased with addition of high-strength PET. The optimal blending ratio of 1000 D high-strength PET and 6D RPET is 40 %/60 % on account of comparison with strength of commercially available geotextiles.

Abstract: This Research Is to Study the High Strength Polyester Fabric Pre-treatment by Oxygen Plasma and Far-infrared, in the Rfl Chemical Solid Composition and Methylenediphenylisocyanate Concentration of 4% for Adding. Analysis Adhesion Strength between Fabric to Fabric and Fabric to Rubber of the Conveyor Belt, and the Effect of Pet Fabric Mechanical Properties. from the Result, the Best Treatment Condition Is Oxygen Plasma Treated 1min 120w and Add 4% Methylenediphenylisocyanate(mdi). in the Adhesion Strength of Fabric and Fabric Layer Compared with the Untreated Has Raised up to 21.5kgf (25.0%), and Fabric and Rubber Layer Has Raised up to 23.7kgf (55.9%). Heating 20 Seconds, after Stop 10 Seconds and then Heat 20 Seconds and Add 4% Methylenediphenylisocyanate(mdi) Fabric-fabric Adhesion Strength Is 13.4 Kgf, Fabric-rubber Adhesion Strength Is 15.8 Kgf, Fabric-fabric and Fabric-rubber Adhesion Strength that Improve 24.1%, 43.6%.