Polyamide 6 and thermoplastic polyurethane recycled hybrid Fibres via twin-screw melt extrusion

Kunchimon, Siti Zaharah; Tausif, Muhammad; Goswami, Parikshit; Cheung, Vien

doi:10.1007/s10965-019-1827-0

Cited by 23 publications

(16 citation statements)

References 39 publications

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“…However, compared with rubber materials, TPU materials can be recycled and reused, which will greatly reduce the environmental pollution of waste tires [21][22][23]. Meanwhile, due to the simple processing technology of TPU materials, low rolling resistance, excellent wear resistance, and high mechanical properties [1,6], tires made of TPU materials will have the advantages of low energy consumption, large carrying capacity, and long service life [23,24]. In addition, due to the shortcomings of pneumatic tires, such as poor puncture resistance, easy puncture, low safety factor, and short service life during use, the research of non-pneumatic tires has gradually become one of the research hotspots in the tire field [25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Research of TPU Materials for 3D Printing Aiming at Non-Pneumatic Tires by FDM Method

et al. 2020

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3D printing technology has been widely used in various fields, such as biomedicine, clothing design, and aerospace, due to its personalized customization, rapid prototyping of complex structures, and low cost. However, the application of 3D printing technology in the field of non-pneumatic tires has not been systematically studied. In this study, we evaluated the application of potential thermoplastic polyurethanes (TPU) materials based on FDM technology in the field of non-pneumatic tires. First, the printing process of TPU material based on fused deposition modeling (FDM) technology was studied through tensile testing and SEM observation. The results show that the optimal 3D printing temperature of the selected TPU material is 210 °C. FDM technology was successfully applied to 3D printed non-pneumatic tires based on TPU material. The study showed that the three-dimensional stiffness of 3D printed non-pneumatic tires is basically 50% of that obtained by simulation. To guarantee the prediction of the performance of 3D printed non-pneumatic tires, we suggest that the performance of these materials should be moderately reduced during the structural design for performance simulation.

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Section: Introductionmentioning

confidence: 99%

Research of TPU Materials for 3D Printing Aiming at Non-Pneumatic Tires by FDM Method

et al. 2020

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“…It was possible that CuCNPs loaded in PA6 played heterogeneous nucleation catalyst in crystallization, resulting in acceleration of the crystallization of composites. 4,21 Thermogravimetric analysis (TGA) was employed to test the thermal stability of the PA6/CuCNP segmented-pie microfibers. Figure 6(c,d) shows the TGA and differential thermogravimetric (DTG) curves of pure PA and composites.…”

Section: Resultsmentioning

confidence: 99%

“…incorporated functionalized graphene (FGO) with PA6 by melt-spinning and found that the FGO/PA6 nanocomposite fibers exhibited multi-functional characteristics, such as high strength, UV resistance, and good antibacterial properties. 19 In addition, polyamide composite fibers with segmented-pie cross-section have been used previously to obtain splittable ultrafine fibers and nonwovens, 21–23 which could also load functional nanoparticles to impart antibacterial property.…”

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confidence: 99%

Development of novel segmented-pie microfibers from copper-carbon nanoparticles and polyamide composite for antimicrobial textiles application

Jin

Zhou

et al. 2021

Textile Research Journal

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Development of novel antibacterial fibers with mass production is urgently required in the technical textiles industry. In this paper, a series of segmented-pie composite microfibers based on polyamide 6 (PA6) and different amounts of copper–carbon nanoparticles (CuCNPs) were fabricated by utilizing a melt-spinning apparatus with twin-screw extruders. The encapsulation of CuCNPs and the formation of segmented-pie structure of as-prepared PA6/CuCNP microfibers were confirmed. The CuCNPs or their agglomeration with an average diameter of approximately 200 nm exhibited a uniform distribution in PA6/CuCNP segmented-pie microfibers. Compared with the pure PA6 microfibers, the PA6/CuCNP segmented-pie microfibers showed obviously enhanced crystallinity, thermal stability as well as UV resistance. As the CuCNP content increased to 1.0 wt%, the tensile strength and initial modulus increased to 3.79 cN/dtex and 22.4 cN/dtex, respectively. Importantly, the PA6/CuCNP segmented-pie microfibers presented excellent antimicrobial activities to both Escherichia coli and Staphylococcus aureus (antimicrobial efficiency around 99%) and great antifungal activity to Candida albicans (antimicrobial efficiency around 82%). Taken together, our present study demonstrated that the PA6/CuCNP segmented-pie microfibers show great prospects in the fabrication of technical textiles for healthcare applications.

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“…The blend composition of the component polymers has an effect on the morphology of the resultant fibers. Our previous study shows that the blending of two partially miscible polymers; PA6 and thermoplastic polyurethane produced interconnected multiporous hybrid fibers structures [12]. Limited literature in this subject area reports that PA6 forms the disperse phase and PP forms the matrix phase in fibers where the PA6 component is less than 50 wt% of the hybrid fibers [5,[7][8][9].…”

Section: Fiber Morphologymentioning

confidence: 99%

From hybrid fibers to microfibers: The characteristics of polyamide 6/polypropylene blend via one‐step twin‐screw melt extrusion

Kunchimon

Tausif

Goswami

et al. 2020

Polymer Engineering & Sci

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Multimaterial textiles are frequently employed to attain a certain function or aesthetic effect. The multimaterial assemblies face recycling limitations due to challenges to sort and separate the component materials. A one‐step melt extrusion approach to process two mixed common textile polymers, polyamide 6 (PA6), and polypropylene (PP), into PA6:PP hybrid fibers is reported in this study. PA6:PP hybrid fibers were produced in four different configurations; PA6‐50 (50 wt% PA6), PA6‐60 (60 wt% PA6), PA6‐65 (65 wt% PA6), and PA6‐80 (80 wt% PA6). The PP component was sacrificially removed from the hybrid fibers and the resultant PA6 fiber structure was analyzed. The SEM images show the development of PA6 microfibers in PA6‐50 and PA6‐60 hybrid fibers with mean diameters of 0.76 μm and 1.13 μm upon fiber drawing, respectively. In PA6‐65 hybrid fibers, the PA6 microfibers were found along with areas where PA6 was encapsulating the PP. Thermal and mechanical properties of the untreated and treated hybrid fibers were also investigated. PA6‐60 hybrid fibers were processed into single jersey knitted fabrics and treated to obtain PA6 microfibers fabrics. The bursting strength and wicking properties of the fabric, before and after treatment, were comparatively studied. POLYM. ENG. SCI., 60:690–699, 2020. © 2020 Society of Plastics Engineers

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Polyamide 6 and thermoplastic polyurethane recycled hybrid Fibres via twin-screw melt extrusion

Abstract: This is a repository copy of Polyamide 6 and thermoplastic polyurethane recycled hybrid Fibres via twin-screw melt extrusion.

Cited by 23 publications

References 39 publications

Research of TPU Materials for 3D Printing Aiming at Non-Pneumatic Tires by FDM Method

Research of TPU Materials for 3D Printing Aiming at Non-Pneumatic Tires by FDM Method

Development of novel segmented-pie microfibers from copper-carbon nanoparticles and polyamide composite for antimicrobial textiles application

From hybrid fibers to microfibers: The characteristics of polyamide 6/polypropylene blend via one‐step twin‐screw melt extrusion

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