scholarly journals RECYCLED PET FOR RICE HUSK/POLYESTER COMPOSITES

2017 ◽  
Vol 22 (4) ◽  
pp. 345 ◽  
Author(s):  
I. Ahmad ◽  
D. R. Abu Bakar ◽  
S. N. Mokhilas ◽  
A Ramli
Keyword(s):  
Mechanical Properties ◽  
Rice Husk ◽  
Soft Drink ◽  
Unsaturated Polyester ◽  
Filler Loading ◽  
Rice Husks ◽  
Recycled Pet ◽  
Poly Ethylene Terephthalate ◽  
Polyester Composites ◽  
Poly Ethylene

Rice husks were combined with unsaturated polyester resin, synthesized from glycolysed product of poly (ethylene terephthalate) (PET) waste to form rice husk (RH)/polyester composites. PET from post-consumer soft drink bottles was recycled through glycolysis, followed by polyesterified with maleic anhydride and then cross-linked with styrene to producea formulation for the resin. Characterizations of the synthesized resin were performed byhydroxyl, acid values and Fourier Transform InfraRed (FTIR) techniques. The effect of filler loading and surface modification of rice husks on the mechanical properties of the composites were also investigated. It has been observed that the increasing filler loading resulted in reduction of tensile strength, elongation at break and impact strength but increased tensilemodulus and hardness. At similar filler loading, alkalized filler composites have higher mechanical properties. 

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

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.

Microcellular injection molding of recycled poly(ethylene terephthalate) blends with chain extenders and nanoclay

2014 ◽  
Vol 34 (1) ◽  
pp. 5-13 ◽  
Author(s):  
Yottha Srithep ◽  
Lih-Sheng Turng
Keyword(s):  
Mechanical Properties ◽  
Injection Molding ◽  
Ethylene Terephthalate ◽  
Average Cell Size ◽  
Recycled Pet ◽  
Average Cell ◽  
Poly Ethylene Terephthalate ◽  
Microcellular Injection Molding ◽  
Chain Extenders ◽  
Poly Ethylene

Abstract Poly(ethylene terephthalate) (PET) resin is one of the most widely used thermoplastics, especially in packaging. Due to thermal and hydrolytic degradations, recycled PET (RPET) exhibits poor mechanical properties and lacks moldability. The effects of adding chain extender (CE) and nanoclay to RPET were investigated. Melt blending of RPET with CE was performed in a thermokinetic mixer (K-mixer). The blended materials were then prepared via solid and microcellular injection molding processes. The effects of CE loading levels and the simultaneous addition of nanoclay on the thermal and mechanical properties and cell morphology of the microcellular components were noted. The addition of 1.3% CE enhanced the tensile properties and viscosity of RPET. The higher amount of CE (at 3%) enhanced the viscosity, but the margin of improvement in mechanical properties diminished. While the solid RPET and CE blends were fairly ductile, the samples with nanoclay and all microcellular specimens showed brittle fractural behavior. Finally, nanoclay and the increase of CE content decreased the average cell size and enlarged the cell density of the microcellular samples.

scholarly journals Numerical Analysis of the Mechanical Properties of Rice Husk-Polyester Composites

2002 ◽  
Vol 11 (4) ◽  
pp. 096369350201100
Author(s):  
R. Salgado-Delgado ◽  
S. Vasquez ◽  
E. Garcia ◽  
R. Lopez-Castanares ◽  
A. Alvarez-Castillo ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Numerical Analysis ◽  
Rice Husk ◽  
Polyester Resin ◽  
Unsaturated Polyester ◽  
Correlation Equation ◽  
Unsaturated Polyester Resin ◽  
Polyester Composites

The production of hot-pressed composite materials based on unsaturated polyester resin reinforced with rice husk is described. A correlation equation relating the tensile and compressive mechanical properties as a function of both rice husk concentration and the pressure applied to the mold was obtained.

Physical and mechanical properties of unsaturated polyester resin matrix from recycled PET (based PG ) with corn straw fiber

2021 ◽  
pp. 51305
Author(s):  
Nora Abigail Wilson García ◽  
Jorge Luis Almaral Sánchez ◽  
Ramón Álvaro Vargas Ortiz ◽  
Abel Hurtado Macías ◽  
Nelly Flores Ramírez ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Polyester Resin ◽  
Unsaturated Polyester ◽  
Physical And Mechanical Properties ◽  
Unsaturated Polyester Resin ◽  
Resin Matrix ◽  
Corn Straw ◽  
Recycled Pet
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