Wear Resistance and Mechanical Properties of Polymeric Fibers Filled with Inorganic Fillers

2006 ◽  
Vol 977 ◽  
Author(s):  
Toshihira Irisawa ◽  
Masatoshi Shioya ◽  
Haruki Kobayashi ◽  
Junichi Kaneko
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Tensile Modulus ◽  
Nylon 6 ◽  
Polymeric Fibers ◽  
Poly Ethylene Terephthalate ◽  
The Matrix ◽  
Pet Fibers ◽  
Inorganic Fillers ◽  
Poly Ethylene

AbstractThe wear resistance and the mechanical properties of polymer matrix composite fibers filled with inorganic fillers have been investigated in order to find out the way to increase the wear resistance of the fibers without losing tensile modulus and strength. Nylon 6 and poly(ethylene terephthalate) have been used as the matrix polymer and aluminum borate whisker and carbon nanotube have been used as the fillers. The wear resistance of the fibers has been evaluated by observing the fiber cross section after the side of the fiber was worn using a rotating drum covered with abrasive paper. The wear resistance of the nylon 6 and PET fibers was increased by the addition of these fillers without the loss of tensile modulus and strength. The effects of the addition of the fillers on the wear resistance have been compared with the effects of stretching and heat treatment of the fibers.

scholarly journals Melt-Spun Fibers from Bio-Based Polyester–Fiber Structure Development in High-Speed Melt Spinning of Poly(ethylene 2,5-furandicarboxylate) (PEF)

Materials ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1172
Author(s):  
Wataru Takarada ◽  
Kenichi Sugimoto ◽  
Hajime Nakajima ◽  
Hendrikus A. Visser ◽  
Gert-Jan M. Gruter ◽  
...  
Keyword(s):  
High Speed ◽  
Melt Spinning ◽  
Tensile Modulus ◽  
Structural Development ◽  
Poly Ethylene Terephthalate ◽  
Pet Fibers ◽  
Fossil Resource ◽  
Poly Ethylene ◽  
Induced Crystallization ◽  
Spun Fibers

Poly(ethylene 2,5-furandicarboxylate) (PEF) is regarded as a bio-based alternative or complementary polyester for the widely used fossil resource-based polyester, poly(ethylene terephthalate) (PET). High-speed melt spinning of PEF of low and high molecular weight (L-PEF, H-PEF) was conducted, and the structure and properties of the resultant as-spun fibers were investigated. The occurrence of orientation-induced crystallization was confirmed for the H-PEF at the take-up velocity of 6.0 km/min, the highest speed for producing PET fibers in the industry. Molecular orientation and crystallinity of the as-spun fibers increased with the increase of take-up velocity, where the H-PEF fibers always showed a higher degree of structural development than the L-PEF fibers. The tensile modulus of the high-speed spun H-PEF fibers was relatively low at 5 GPa, whereas a sufficiently high tensile strength of approximately 500 MPa was measured. These values are adequately high for the application in the general semi-engineering fiber field.

scholarly journals Mechanical properties of composites based on unsaturated polyester resins obtained by chemical recycling of poly(ethylene terephthalate)

2013 ◽  
Vol 67 (6) ◽  
pp. 913-922 ◽  
Author(s):  
Aleksandar Marinkovic ◽  
Tijana Radoman ◽  
Enis Dzunuzovic ◽  
Jasna Dzunuzovic ◽  
Pavle Spasojevic ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Ethylene Terephthalate ◽  
Unsaturated Polyester ◽  
Tensile Modulus ◽  
Polyester Resins ◽  
Poly Ethylene Terephthalate ◽  
Cloisite 30B ◽  
Poly Ethylene ◽  
Properties Of Composites

Composites based on unsaturated polyester (UPe) resins and fumed silica AEROSIL? RY 50, NY 50, RX 50 and NAX 50, as well as graphite, TiO2 or organically modified clay CLOISITE 30B were prepared in order to investigate the influence of reinforcing agents on the mechanical properties of composites. Unsaturated polyester resins were synthesized from maleic anhydride and products of glycolysis, obtained by depolymerization of poly(ethylene terephthalate) with dipropylene glycol (UPe1 resin) and triethylene glycol (UPe2 resin) in the presence of tetrabutyl titanate catalyst. The obtained unsaturated polyesters were characterized by FTIR spectroscopy, acid and hydroxyl values, and their mechanical properties were also examined. Significant increase of the tensile modulus, tensile strength and decrease of the elongation at break was observed for composites prepared after addition of 10 wt.% of graphite or 10 wt.% of TiO2 to the UPe resins, indicating strong interaction between matrix and filler particles. On the other hand, nanocomposites prepared using UPe2 and hydrophobically modified silica nanoparticles showed lower tensile strength and tensile modulus than polymer matrix. The presence of CLOISITE 30B had no significant influence on the mechanical properties of UPe1, while tensile strength and tensile modulus of UPe2 increased after adding 10 wt.% of clay.

Study of braiding commingled self-reinforced PET composites

2018 ◽  
Vol 32 (19) ◽  
pp. 1840086
Author(s):  
C. M. Wu ◽  
W. Y. Hsieh ◽  
S. T. Su ◽  
K. B. Cheng ◽  
K. C. Lee ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Ethylene Terephthalate ◽  
Impact Behavior ◽  
Processing Conditions ◽  
Poly Ethylene Terephthalate ◽  
The Matrix ◽  
Poly Ethylene ◽  
Commingled Yarns

This work examines the flexural and impact behavior of self-reinforced poly(ethylene terephthalate) (srPET) composites, which were produced by film stacking from fabrics composed of braiding commingled yarns with high-tenacity PET (serving as the reinforcements) and copolymerized PET (mPET) (serving as the matrix). The influence of the hybrid yarns, fabric architectures, and processing conditions on the mechanical properties of srPETs were studied.

scholarly journals Influence of Spin Finish on Degradation, Functionalization and Long-term Storage of Polyethylene Terephthalate Fabrics Dedicated to Ligament Prostheses

2020 ◽  
Author(s):  
Tuan Ngoc Nguyen ◽  
Andre Rangel ◽  
David W. Grainger ◽  
Véronique Migonney
Keyword(s):  
Mechanical Properties ◽  
Surface Functionalization ◽  
Ethylene Terephthalate ◽  
Fiber Surface ◽  
Oil Removal ◽  
Anionic Polymer ◽  
Poly Ethylene Terephthalate ◽  
Pet Fibers ◽  
Poly Ethylene ◽  
Storage Times

Abstract Spin finish oil applied to poly(ethylene terephthalate) (PET) fibers is shown to alter the surface properties of commercial PET fibers in storage over extended storage times. Oil removal by solvent extraction as required for their applications is shown to be changed; fiber surface chemistry, particularly surface functionalization with anionic polymer grafts, is altered, and surface mechanical properties are altered. Spin finish oxidation in storage is proposed to produce these fiber changes in storage important to their biomedical performance. Background: Poly(ethylene terephthalate) (PET) fabrics surface-functionalized using anionic polymer grafts to enhance their biocompatibility, cell adhesion, proliferation and functional performance as PET ligament prostheses have been developed for medical application in vascular and ligament prostheses. Here, we provide new evidence for deleterious effects of uncontrolled storage times and conditions on the final properties of PET medical fabrics and devices, specifically alteration and degradation of applied spin finish oil and fabric fiber surface properties, and limits to surface functionalization of PET fibers important to for medical uses.Results: Textile spin finish oil effects from 2- to 25-year storage times on PET fiber degradation and surface functionalization with anionic polymers were analyzed using FTIR, DSC and by quantitative AFM nano-mechanical profiling. Degradation of the spin-finish oil/fiber interface reduced oil Soxhlet extraction efficiency due to oil solubility changes in diethyl ether or n-hexane extraction solvents. However, solvent tetrahydrofuran was shown to be the most efficient extraction solvent even after long fabric storage times, facilitating further efficient surface functionalization of PET fabrics. Surface mechanical properties of PET fibers and fabrics over storage times spanning 2 to 25 years were investigated by using AFM-Peakforce QNM. Results showed significant and dramatic reduction of the surface elastic modulus of degraded PET fiber surfaces, with surface stiffness decreasing from 2.3 GPa for optimal (2-year) conditions of storage (PET 2018) to 50-85 MPa for extended storage (to 25 year) periods (PET2009 and PET1993). Conclusion: The ambient aging of textile spin finish oil with PET surfaces was shown to induce PET surface degradation, limiting oil removal, limiting further PET fiber surface graft functionalization, and compromising mechanical properties. Moreover, residual degraded finishing oils likely contained oxidation products from extended storage that alter PET fabrics.

scholarly journals Mechanical Properties of Poly(ethylene-co-methacrylic acid) Reinforced with Carbon Fibers

Polymers ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 165
Author(s):  
Tatjana Haramina ◽  
Daniel Pugar ◽  
Darko Ivančević ◽  
Ivica Smojver
Keyword(s):  
Mechanical Properties ◽  
Carbon Fibers ◽  
Methacrylic Acid ◽  
Mass Fraction ◽  
Tensile Modulus ◽  
Tensile Tests ◽  
Mechanical Analysis ◽  
Double Layers ◽  
The Matrix ◽  
Poly Ethylene

The capability of poly(ethylene-co-methacrylic acid) (E/MAA) to self-heal is well known, however, its mechanical properties are weak. In this study, composites with single and double layers of unidirectional (UD) carbon fibers were prepared by compression molding. Even a low mass fraction of fibers substantially improved the polymer. The flexural and tensile properties were tested at 0°, 45° and 90° fibers direction and compared to those of the matrix. The mechanical properties in the 0° direction proved superior. Flexural properties depended on the reinforcement distance from the stress neutral plane. The tensile modulus in the 0° direction was 13 times greater despite only a 2.5% mass fraction of fibers. However, both tensile modulus and strength were observed to degrade in the 90° direction. Dynamic mechanical analysis showed the dependence of both structure and properties on the thermal history of E/MAA. Tensile tests after ballistic impact showed that the modulus of the self-healed E/MAA was not affected, yet the strength, yield point, and particularly the elongation at break were reduced. A composite with higher fiber content could be prepared by mixing milled E/MAA particles in fibers prior to compression.

scholarly journals Influence of PET Waste on Mechanical Properties of Concrete

2019 ◽  
Vol 9 (1) ◽  
pp. 2605-2607
Keyword(s):  
Mechanical Properties ◽  
Ethylene Terephthalate ◽  
Fine Aggregate ◽  
Concrete Compressive Strength ◽  
Pet Waste ◽  
Poly Ethylene Terephthalate ◽  
Strength Tests ◽  
Pet Fibers ◽  
Hardened Properties ◽  
Poly Ethylene

Recycling of plastic is one of the major issues in the today’s world .In this paper, study is carried on properties on concrete using poly ethylene terephthalate waste fibers (PET). PET fibers are replaced with fine aggregate by 10,15,20,25 and 30%. Concrete is tested for fresh and hardened properties. Slump test is conducted to find out the workability of concrete. To check the mechanical properties of concrete compressive strength, flexural strength tests are conducted on concrete specimens.

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