scholarly journals Electrospinning of Polymer Fibres Using Recycled PET

2019 ◽  
Vol 2 (1) ◽  
pp. 19-26
Author(s):  
Attila Gergely ◽  
József Kántor ◽  
Enikő Bitay ◽  
Domokos Biró
Keyword(s):  
Polymer Materials ◽  
Polymer Fibers ◽  
Free Standing ◽  
Recycled Pet ◽  
Fiber Mats ◽  
Alternative Method ◽  
Pet Fibers

Abstract The effective recycling of polymer materials remains unresolved to this day, and this has had a devastating effect on the environment. This study examines an alternative method to PET recycling that is the generation of polymer fibers and fiber mats for filtration applications. The electrospinning instrumentation used in this study had to be designed and built in order to carry out the research. We have managed to produce PET fibers with 200-600 nm diameter, and free-standing fiber mats that could potentially be used in filtration applications.

Air Driven Electrospinning of CNT Doped Conductive Polymer Fibers for Electronics

MRS Advances ◽  
2020 ◽  
Vol 5 (52-53) ◽  
pp. 2693-2700
Author(s):  
Emily A. Kooistra-Manning ◽  
Lane G. Huston ◽  
Jack L. Skinner ◽  
Jessica M. Andriolo
Keyword(s):  
Polyethylene Oxide ◽  
Electrospun Fiber ◽  
Conductive Polymer ◽  
Weight Percent ◽  
Polymer Materials ◽  
Polymer Fibers ◽  
Polymer Fiber ◽  
Fiber Mats ◽  
Multi Walled Carbon Nanotube ◽  
Deposition Electrode

AbstractAn electrostatic and air driven (EStAD) electrospinning device was used to achieve deposition of polymer fiber mats that carry electrical charge. The EStAD device does not require the polymer stream to contact a deposition electrode, thereby allowing enhanced control and processing versatility over production of conductive polymer materials. Direct current (DC) conductivity in the fiber mats was enabled through the use of a composite multi-walled carbon nanotube-polyethylene oxide (MWCNT-PEO) blend for electrospinning (ES). The electrospun fiber mats contained three different concentrations of MWCNTs. Conductivity and resistance were measured for each concentration as an electrospun fiber mat and compared to that of a drop-cast thin film. Results showed that at 7.51 wt% MWCNTs, conductivity in the electrospun fiber mats began to approach that of the drop-cast thin films at 1.76E-01 S/cm. At the lowest weight percent tested (3.37 wt%), conductivity was still measurable at approximately 8.48E-05 S/cm and was comparable to results reported previously using traditional ES methods.

The nanoscale dimension determines the carbonization outcome of electrospun lignin/recycled-PET fibers

2019 ◽  
Vol 202 ◽  
pp. 26-35 ◽  
Author(s):  
Efstratios Svinterikos ◽  
Ioannis Zuburtikudis ◽  
Mohamed Al-Marzouqi
Keyword(s):  
Recycled Pet ◽  
Pet Fibers

Tinctorial Response of Recycled PET Fibers to Chemical Modifications during Saponification and Aminolysis Reactions

2014 ◽  
Vol 53 (43) ◽  
pp. 16652-16663 ◽  
Author(s):  
Vasilica Popescu ◽  
Augustin Muresan ◽  
Ovidiu Constandache ◽  
Gabriela Lisa ◽  
Emil Ioan Muresan ◽  
...  
Keyword(s):  
Chemical Modifications ◽  
Recycled Pet ◽  
Pet Fibers

The Thermal Effect on PLA And PLA / Curcumin Composite Properties under Positron Annihilation Lifetime Spectroscopy

2021 ◽  
pp. 3407-3416
Author(s):  
Saygin M. Nuri ◽  
Shanay Rajab Hasan ◽  
Hussein Ali Mohammed
Keyword(s):  
Positron Annihilation ◽  
Polylactic Acid ◽  
Free Volume ◽  
Composite Films ◽  
Positron Annihilation Lifetime Spectroscopy ◽  
Polymer Materials ◽  
Free Standing ◽  
Positron Annihilation Lifetime ◽  
Mechanical Stirring ◽  
Sensitive Parameters

     In this study, pure polylactic acid (PLA) and composite polylactic acid/ curcumin (PLA / Cur) were prepared by a suspension of ultrasonically agitated micrometer-sized curcumin powder, which was mixed with chloroform solvent  under slow mechanical stirring and incorporated into the PLA. The resulting suspension was used to cast free-standing PLA / Cur composite films. The filler content was chosen to be 2.0 wt % curcumin. Physical properties (glass transition, temperature, mechanical and thermodynamic) were analyzed by Positron Annihilation Lifetime Spectroscopy (PALS), which is a unique tool for analyzing the defects of polymer materials. The free volume and holebility of PLA and PLA / Cur were studied  in vacuum and temperature range of 283 to 353 K. Ortho-positronium (o Ps), life ,  and intensity were measured as more sensitive parameters to determine free volume dimensions. The results of the thermodynamic property of PLA, examined with PALS technique, revealed a phase change of around  58 ºC. Also, an improvement was observed in the PLA / Cur structure with the addition of curcumin, by reducing nano-size defects.

Omnidirectionally stretchable electrodes based on wrinkled silver nanowires through the shrinkage of electrospun polymer fibers

2020 ◽  
Vol 8 (47) ◽  
pp. 16798-16807
Author(s):  
Chen Ding ◽  
Qingsong Li ◽  
Yong Lin ◽  
Xinzhou Wu ◽  
Zeyu Wang ◽  
...  
Keyword(s):  
Silver Nanowires ◽  
Polymer Fibers ◽  
Fiber Mats ◽  
Stretchable Electrode

An omnidirectionally stretchable electrode has been developed by utilizing wrinkled Ag NWs through the controllable shrinkage of electrospun fluoroelastomer fiber mats.

Tensile performance of sustainable Strain-Hardening Cementitious Composites with hybrid PVA and recycled PET fibers

2018 ◽  
Vol 107 ◽  
pp. 110-123 ◽  
Author(s):  
Jing Yu ◽  
Jie Yao ◽  
Xiuyi Lin ◽  
Hedong Li ◽  
Jeffery Y.K. Lam ◽  
...  
Keyword(s):  
Strain Hardening ◽  
Cementitious Composites ◽  
Recycled Pet ◽  
Tensile Performance ◽  
Pet Fibers

scholarly journals Study of flame retardancy, thermal and physical properties of rigid polyurethane foam based on recycled poly(ethylene terephthalate) using non-halogen flame retardant

2021 ◽  
Vol 5 (2) ◽  
pp. first
Author(s):  
Hà Tuyết Minh Nguyễn ◽  
DongQuy Hoang ◽  
Thị Chi Phạm
Keyword(s):  
Flame Retardant ◽  
Ethylene Terephthalate ◽  
Polyurethane Foams ◽  
Polymer Materials ◽  
Rigid Polyurethane Foam ◽  
Recycled Pet ◽  
Foam Structure ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Thermal Stability Of

Bis(2-hydroxyethyl) terephthalate (BHET) obtained from waste poly(ethylene terephthalate) bottles was used to synthesize polyurethane foams (B-PUF) and the fireproof B-PUF in the presence of nonhalogen flame retardant, namely, aluminum hydrogen phosphonate (AHP). Loading of 25 php AHP was needed for B-PUF/AHP to achieve UL-94 V-0 rating. The thermal stability of B-PUF was improved with the addition of AHP through the thermogravimetric analysis (TGA) results. In addition, other properties such as density and foam structure were also investigated. The outcomes of this study also confirmed that the B-PUF prepared from recycled PET not only were composed of a high percentage of waste poly(ethylene terephthalate), which could help reduce the amount of recycled polymer materials and improved waste management but also met the high demands for the fire safety of polymer applications.

Sign in / Sign up

Export Citation Format

Share Document