Study on the Processing Technology and Mechanical Properties of Nonwoven Fabric Composited by Recycled PP Selvedges

2011 ◽  
Vol 287-290 ◽  
pp. 2748-2751 ◽  
Author(s):  
Jia Horng Lin ◽  
Chia Chang Lin ◽  
Jin Mao Chen ◽  
Ting Ting Li ◽  
Ming I Lin ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Mass Production ◽  
Protective Clothing ◽  
Low Cost ◽  
Nonwoven Fabric ◽  
Raw Material ◽  
Building Structure ◽  
Needle Punching ◽  
Short Processing Time ◽  
High Output

Functional nonwoven products have superiority such as quick mass-production, short processing time, wide sources for raw material, low cost and high output etc. They have been widely studied and promoted in advanced countries. However, comparing with selvedge processing, they brings considerable burden to environment. So in this paper, we chose low cost polyester (LPE) and low melting point fiber (LMPE) respectively blending by 50 wt% through the process of mixing, blowing, carding, laying, and needle punching etc. to form nonwoven fabric in which the needle density was adjusted. Finally it is found that 103 needles/cm2 was optimal after mechanical testing. And then different proportions of PP selvedges were placed in the middle of two optimal nonwoven layers by sandwich structure, and mechanical properties of PET/LMPET/PP fabric produced after thermo bonding and cooling was tested. According to the optimal production evaluation for functionality, these products may apply to reinforced interlayer in general protective clothing, protective glove, reinforcement in simple building structure and stiffening geotextiles in the future.

scholarly journals Preparation and Chemical Protective Clothing Application of PVDF Based Sodium Sulfonate Membrane

Membranes ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 190
Author(s):  
Yue Zhao ◽  
Xinbo Wang ◽  
Deyin Wang ◽  
Heguo Li ◽  
Lei Li ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Polyvinylidene Fluoride ◽  
Protective Clothing ◽  
Low Cost ◽  
Chemical Warfare Agents ◽  
Contact Angles ◽  
Protective Material ◽  
Sodium Sulfonate ◽  
Vapor Permeation ◽  
Chemical Protective Clothing

Chemical protective clothing (CPC) is major equipment to protect human skin from hazardous chemical warfare agents (CWAs), especially nerve agents and blister agents. CPC performance is mainly dominated by the chemical protective material, which needs to meet various requirements, such as mechanical robustness, protective properties, physiological comfort, cost-effectiveness, and dimensional stability. In this study, polyvinylidene fluoride (PVDF) based sodium sulfonate membranes with different ion exchange capacities (IECs) are prepared simply from low-cost materials. Their mechanical properties, contact angles, permeations, and selectivities have been tested and compared with each other. Results show that membranes with IEC in the range of 1.5–2 mmol g−1 have high selectivities of water vapor permeation over CWA simulant vapor permeation and good mechanical properties. Therefore, PVDF-based sodium sulfonate membranes are potential materials for CPC applications.

Research on Applied of CBF Composite Material in Engineering

2013 ◽  
Vol 838-841 ◽  
pp. 137-141
Author(s):  
Sheng Ji Jin ◽  
Zi Xin Liu ◽  
Zhong Liang Li ◽  
Yan Ling Wang
Keyword(s):  
Mechanical Properties ◽  
Composite Material ◽  
Low Cost ◽  
Engineering Application ◽  
Building Structure ◽  
Fire Retardancy ◽  
Reinforcement Effect ◽  
Cold Region ◽  
Underground Engineering ◽  
Application Characteristics

Based on the consequences of abundant relevant literatures, this essay expounded the latest mechanical properties research results of the concrete reinforced with CBF and its application on building structure reinforcement studied by the domestic and foreign scholars. Research suggests that the new composite material of concrete reinforced with CBF has many excellent engineering application characteristics such as good crack resistance, durability, permeability resistance, high temperature resistance and fire retardancy. CBF is a kind of good reinforcement materials with so many advantages including simple construction, favorable reinforcement effect and low cost. We can infer that CBF can be widely used in underground engineering port, deep-water wharf, cross-sea bridges and tunnels, cold region and other fields based on the good mechanical properties and durability of the concrete reinforced with CBF in the future.

Mechanical and Electrical Properties of the Polyaniline (PANI)/Polylactic Acid (PLA) Nonwoven Fabric

2013 ◽  
Vol 365-366 ◽  
pp. 1074-1077 ◽  
Author(s):  
Chin Mei Lin ◽  
Ching Hui Lin ◽  
Yu Tien Huang ◽  
Ching Wen Lou ◽  
Jia Horng Lin
Keyword(s):  
Mechanical Properties ◽  
Electromagnetic Wave ◽  
Melting Point ◽  
Polylactic Acid ◽  
Nonwoven Fabric ◽  
Consumer Products ◽  
Layer Number ◽  
Nonwoven Fabrics ◽  
Mechanical And Electrical Properties ◽  
Needle Punching

Technical development and rapid telecommunication create convenient consumer products, but produce electromagnetic radiation that hurts the human body, which makes the development of antistatic and electromagnetic-wave-resistant textiles important. This study combines polylactic acid (PLA) fibers and low melting point polylactic (LPLA) fibers by needle punching to make PLA nonwoven fabrics. The lamination layer number is then changed to explore its influence on the mechanical properties of the PLA nonwoven fabrics. Next, the nonwoven fabrics are spray-coated with polyaniline (PANI) to form the PANI/PLA nonwoven fabrics. The PANI/PLA nonwoven fabric with a lamination layer number of 5 has the optimum tensile and tear strength. A coating of PANI can reduce the surface resistivity.

scholarly journals Comparison of different microstructure scaffolds for tissue regeneration

2016 ◽  
Author(s):  
Andžela Šešok ◽  
Deividas Mizeras ◽  
Algirdas Vaclovas Valiulis ◽  
Julius Griškevičius ◽  
Mangirdas Malinauskas
Keyword(s):  
Mechanical Properties ◽  
Tissue Regeneration ◽  
Low Cost ◽  
Testing Machine ◽  
Raw Material ◽  
Bending Tests ◽  
Universal Testing Machine ◽  
Universal Testing ◽  
3D Printed

In this work we aim to determine the mechanical properties of 3D printed PLA objects having various orientation woodpile microarchitectures. In this work we chose three different 3D microarchitectures: woodpile BCC (each layer consists of parallel logs which are rotated 90 deg every next layer), woodpile FCC (every layer is additionally shifted half of the period in respect to the previous parallel log layer) and a rotating woodpile 60 deg (each layer is rotated 60 deg in respect to the previous one). Compressive and bending tests were carried out TIRAtest2300 universal testing machine. We found that 60 deg rotating woodpile geometry had the highest values which was approximately 3 times than the BCC or FCC log arrangements. Thus we prove that employing low-cost equipment and applying the same raw material one can create objects of desired rigidity.

scholarly journals Influence of electron radiation on the physical and mechanical properties of a nonwoven fabric made using Spunlace technology

2021 ◽  
Vol 2124 (1) ◽  
pp. 012015
Author(s):  
R Yu Galimzyanova ◽  
M S Lisanevich ◽  
Yu N Khakimullin
Keyword(s):  
Mechanical Properties ◽  
Ionizing Radiation ◽  
Relative Elongation ◽  
Physical And Mechanical Properties ◽  
Nonwoven Fabric ◽  
Breaking Load ◽  
Raw Material ◽  
Radiation Sterilization ◽  
Electron Radiation ◽  
Surgical Gowns

Abstract The effect of electron radiation on the physical and mechanical properties of Sontara nonwoven fabric produced using spunlace technology has been studied. The initial raw material for the manufacture of materials using this technology, as a rule, are viscose, polyester, polypropylene and cellulose fibers. Such nonwovens are highly breathable and are therefore used in disposable surgical gowns and suits. Since radiation can be used to sterilize disposable surgical gowns, it is important to assess the resistance to ionizing radiation. It was found that the Sontara brand material is resistant to the effects of ionizing radiation - the physical and mechanical characteristics of the material (breaking load and relative elongation) in the longitudinal and transverse directions of the web do not significantly change when irradiated with absorbed doses up to 60 kGy. It should also be noted that a cloth with a basis weight of 68 g/m2 has a significant smell of strength after radiation sterilization.

scholarly journals Mechanical properties of polyester composite reinforced fibers hybrid bamboo - Musa acuminata stem fiber as raw material of rear bumper vehicle

2021 ◽  
Vol 8 (3) ◽  
pp. 001-007
Author(s):  
Sujita Darmo Darmo ◽  
Rudy Sutanto Sutanto
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Elasticity Modulus ◽  
Low Cost ◽  
Testing Machine ◽  
Musa Acuminata ◽  
Bamboo Fiber ◽  
Raw Material ◽  
Polyester Composite ◽  
Polyester Composites

In the present study fiber hybrid (bamboo fiber and Musa acuminata stem fibers (MASF) were reinforced polyester composite, for enhancing mechanical properties. The natural fibers composite has gained its importance due to its low cost, substitute for artificial fiber, low price, able to reduce sound, environmentally friendly, has a low density, good fit and ability to absorb impact energy. It’s possible to use it as a vehicle accessory such as a rear bumper vehicle. This study aims to investigate the tensile stress-strain, elasticity modulus and the microstructure of fracture of polyester fiberglass composite reinforced bamboo fiber and MASF hybrid. Polyester matrix type 157 is used BQTN and G3253T, MEKPO catalyst. The mechanical properties test was carried out by universal testing machine (UTM) test instrument, observing the microstructure of the occurrence of fracture by using scanning electron microscope (SEM). The test specimens produced the vacuum infusion method. The results of this study indicate that the addition of more MASF and the outer layer content can increase the tensile strength, elasticity modulus of polyester composites reinforced MASF with woven, random arrangement is better than that of polyester composites reinforced bamboo fiber. So that in the manufacture of polyester composites reinforced hybrid fiber the use of more MASF than bamboo fiber can provide better tensile strength and elasticity modulus. The configuration with the outer MASF layer can also increase the value of tensile strength, elasticity modulus on the specimen compared to the configuration with bamboo fiber outside. The microstructure of fracture for fiber for each configuration of MASF content there are long fibers and also in bamboo fibers there are fibers that are pulled out. The diameter of the bamboo fiber reinforcement is larger so that the load transfer is not as effective as MASF.

Processing Technique and Impact Resistance of Kevlar/FPET/LPET Protective Nonwoven Fabrics

2014 ◽  
Vol 910 ◽  
pp. 174-177 ◽  
Author(s):  
Ching Wen Lou ◽  
Shih Yu Huang ◽  
Jia Horng Lin
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Melting Point ◽  
Impact Resistance ◽  
Nonwoven Fabric ◽  
Processing Technique ◽  
Raw Material ◽  
Nonwoven Fabrics ◽  
Material Sources ◽  
Wide Range

Nonwoven fabric technique has been extensively used because nonwoven fabrics can uses both filaments and staple fibers and have ease of processing, a wide range of raw material sources, and a short production. This study makes protective nonwoven fabrics with Kevlar fibers, flame retardant polyester (FPET) fibers, and low-melting-point polyester (LPET) fibers. The number of lamination layers of the nonwoven fabric is varied and examined to determine their influence on the mechanical properties of the protective nonwoven fabrics. The results of test show that tensile strength and bursting strength of the protective nonwoven fabrics increase as a result of the increased number of lamination layer.

Manufacturing Technique and Mechanical Properties of Environment-Protective Composite Nonwoven Fabrics

2011 ◽  
Vol 287-290 ◽  
pp. 2673-2676 ◽  
Author(s):  
Jia Horng Lin ◽  
An Pang Chen ◽  
Jan Yi Lin ◽  
Ting An Lin ◽  
Ching Wen Lou
Keyword(s):  
Mechanical Properties ◽  
Nonwoven Fabric ◽  
Ecological Environment ◽  
International Economy ◽  
Nonwoven Fabrics ◽  
Needle Punching ◽  
Recycled Fiber ◽  
Lyocell Fiber ◽  
Composite Nonwoven ◽  
Manufacturing Parameters

Ecological environment deteriorates drastically and rapidly, which can be ascribed to the fast advancement of international economy and technique. Hence, people become green consumers, using green products. The series of lyocell fiber, called as recycled fiber, has been pervasively used. This study used Tencel® fiber, Polylactic Acid (PLA) fiber and high absorbent fiber as well as nonwoven manufacturing, creating Tencel®/PLA/HAF composite nonwoven fabrics. Among the manufacturing parameters, an increase in Tencel® fiber ratio, needle-punching density and basis weight all contributed to heighten the mechanical properties of nonwoven fabrics. In particular, the Tencel®/PLA/HAF composite nonwoven fabric exhibited an optimum tensile strength of 68.8 N and bursting strength of 193.7 N when Tencel® fiber ratio was over 80 wt%, basis weight was 200 g/m2 and needle-punching density was 300 needle/cm2.

scholarly journals High-Density Ceramics Obtained By Andesite Basalt Sintering

2021 ◽  
Author(s):  
Vladimir Pavkov ◽  
Gordana Bakić ◽  
Vesna Maksimović ◽  
Ivana Cvijović-Alagić ◽  
Marija Prekajski Đorđević ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Low Cost ◽  
Environmentally Friendly ◽  
Processing Parameters ◽  
Industrial Applications ◽  
Cold Isostatic Pressing ◽  
High Density ◽  
Raw Material ◽  
Andesite Basalt

Abstract Modern industrial requirements include not only the usage of constructive materials with good mechanical properties but also materials obtained through environmentally friendly and low-cost processing procedures. Basalt, as a low-cost raw material, is regarded as a good candidate for industrial constructive parts production. In the present study, andesite basalt originated from the deposit site "Donje Jarinje", Serbia, was examined as a potential raw material for high-density ceramics production. The production of high-density ceramics included dry milling, homogenization, cold isostatic pressing, and sintering in the air. To determine the optimal processing parameters the sintering was conducted at 1040, 1050, 1060, 1070, and 1080 °C, and afterward the sintering duration was varied from 30 to 240 min at the optimal sintering temperature of 1060 °C. Characterization of the starting and sintered materials included the estimation of particle size distribution, density, hardness, and fracture toughness complemented with X-ray diffraction, light optical microscopy, scanning electron microscopy, and energy dispersive spectroscopy analysis. Phase transformations did not occur during processing in the investigated temperature range from 1040 to 1080 °C. The obtained research results showed that 99.5% of relative density and the highest hardness and fracture toughness values of 6.7 GPa and 2.2 MPaÖm, respectively, were achieved for the andesite basalt sintered at 1060 °C for 60 min in the air. The results of the presented study confirmed that the sintered andesite basalt can be used as a high-density ceramic material for various industrial applications since this environmentally friendly material shows satisfactory mechanical properties.

Mechanical behavior of flax/polypropylene commingled nonwoven at dry scale: Influence of process parameters

2018 ◽  
Vol 89 (5) ◽  
pp. 791-800 ◽  
Author(s):  
Imen Gnaba ◽  
Fatma Omrani ◽  
Peng Wang ◽  
Damien Soulat ◽  
Manuela Ferreira ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Mechanical Behavior ◽  
Nonwoven Fabric ◽  
Material Surface ◽  
Light Weight ◽  
Influence Of Process Parameters ◽  
Bending Tests ◽  
Nonwoven Fabrics ◽  
Reinforced Composite ◽  
Needle Punching

Currently, nonwoven fabrics made with natural and thermoplastic commingled fibers have been extensively used in the composite industry due to their light weight and low processing and material costs. As two key parameters in the manufacturing of nonwoven fabrics, the needle-punching and material surface densities influence strongly the mechanical properties of nonwoven fabrics and their reinforced composite parts. Compared to most studies focused on the composite stage, the present experimental investigation is performed at the dry fabric stage, and the influence of the needle-punching and material surface densities on the mechanical behavior of nonwoven fabrics will be analyzed through tensile and bending tests. The results show that increasing the material surface of the nonwoven fabric leads to a better mechanical behavior, but that such variations do not modify the phenomenon of anisotropy of nonwoven fabrics. By contrast, increasing the needle-punching density can strengthen generally the homogeneity of nonwoven fabrics.

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