scholarly journals Green Composites Based on Unsaturated Polyester Resin from Recycled Poly(Ethylene Terephthalate) with Wood Flour as Filler—Synthesis, Characterization and Aging Effect

Polymers ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 2966
Author(s):  
Przemysław Pączkowski ◽  
Andrzej Puszka ◽  
Barbara Gawdzik
Keyword(s):  
Ethylene Terephthalate ◽  
Wood Flour ◽  
Unsaturated Polyester ◽  
Flexural Modulus ◽  
Xenon Lamp ◽  
Green Composites ◽  
Poly Ethylene Terephthalate ◽  
Before And After ◽  
Poly Ethylene ◽  
Pure Resin

The paper investigates the synthesis of green composites and their properties before and after the laboratory accelerated aging tests. Materials were made of unsaturated polyester resins (UPRs) based on recycled poly(ethylene terephthalate) (PET) and wood flour (WF). The effect of dibenzylideneacetone (dba) addition on mechanical and thermomechanical properties was also determined. Green composites were obtained using environment friendly polymeric cobalt as an accelerator. Before and after exposition to the xenon lamp radiation, the UPRs physically modified by WF were characterized only by a greater flexural modulus compared with the analogous composites based on the pure resin. Addition of dba caused the increase of flexural modulus, flexural strength, strain at break and mechanical loss factor compared to the non-modified material. After aging only the last mentioned parameter took on lower values compared to the pure resin analogues.

Effects of Halloysite Nanotubes on Mechanical and Thermal Stability of Poly(Ethylene Terephthalate)/Polycarbonate Nanocomposites

2015 ◽  
Vol 735 ◽  
pp. 8-12
Author(s):  
Nurul Ain Jamaludin ◽  
Azman Hassan ◽  
Norhayani Othman ◽  
Mohammad Jawaid
Keyword(s):  
Thermal Stability ◽  
Ethylene Terephthalate ◽  
Flexural Modulus ◽  
Halloysite Nanotubes ◽  
Mechanical And Thermal Properties ◽  
Poly Ethylene Terephthalate ◽  
Twin Screw ◽  
Poly Ethylene ◽  
The Impact ◽  
Thermal Stability Of

The objective of this study is to investigate the effect of halloysite nanotubes (HNTs) loading on mechanical and thermal properties of poly(ethylene terephthalate)/polycarbonate (PET/PC) nanocomposites. Nanocomposites containing 70PET/30PC and 2-8 phr HNTs were prepared by twin screw extruder followed by injection moulding. As the percentage of HNTs increased, the flexural modulus increased. However, the flexural strength decreased with increasing HNTs content. The impact strength also decreased when HNTs increased. Thermogravimetry analysis of PET/PC/HNTs nanocomposites showed higher thermal stability at high HNTs content. However, on further addition of HNTs up to 8 phr, thermal stability of the nanocomposites decreased due to the poor dispersion of HNTs.

scholarly journals Thermal, mechanical, and viscoelastic properties of recycled poly(ethylene terephthalate) fiber-reinforced unsaturated polyester composites

2016 ◽  
Vol 39 (5) ◽  
pp. 1682-1693 ◽  
Author(s):  
Wided Dehas ◽  
Melia Guessoum ◽  
Abdelmalek Douibi ◽  
José Antonio Jofre-Reche ◽  
José Miguel Martin-Martinez
Keyword(s):  
Viscoelastic Properties ◽  
Ethylene Terephthalate ◽  
Unsaturated Polyester ◽  
Fiber Reinforced ◽  
Poly Ethylene Terephthalate ◽  
Polyester Composites ◽  
Poly Ethylene
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