Potential of using polyester reinforced coconut fiber composites derived from recycling polyethylene terephthalate (PET) waste

Abdullah, Nor Liza; Ahmad, Ishak

doi:10.1007/s12221-013-0584-7

Cited by 41 publications

(22 citation statements)

References 23 publications

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“…The encouragement of PET waste recycling is due to its easy sorting, collection, and recovery from municipal solid wastes . A sufficient supply of recycled PET (rPET) resin (mainly from bottles) has attracted investment for its mechanical recycling, because this is a straightforward and convenient method with a lower toxicity than chemical recycling and so not only reduces the amount of PET waste going into landfills but also supports the conservation of raw petrochemical products and energy . However, owing to the contamination and hydrolytic and thermal–mechanical degradation that occurred during the manufacturing process, rPET is not suitable for the manufacture of water or beverage bottles.…”

Section: Introductionmentioning

confidence: 99%

Effects of poly(butylene adipate‐co‐terephthalate) and ultrafined wollastonite on the physical properties and crystallization of recycled poly(ethylene terephthalate)

Chuayjuljit

Chaiwutthinan

Raksaksri

et al. 2015

Vinyl Additive Technology

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Recycled poly(ethylene terephthalate) (rPET), obtained mainly from postconsumer bottles, was melt-mixed with either poly(butylene adipate-co-terephthalate) (PBAT) or PBAT plus ultrafine wollastonite (5 lm) at different weight ratios on a twin-screw extruder and then injection-molded. Among the five rPET/PBAT blends (10-50 wt% PBAT) evaluated, the 80/20 wt% rPET/PBAT blend exhibited the highest tensile strength and degree of crystallinity, a slight increase in the tensile strain, and a remarkable increase in the melt flow index, but a lower tensile modulus and thermal stability with respect to the neat rPET. This blend was subsequently filled with four loading levels of wollastonite (10-40 wt%), where the tensile properties (modulus, strain at break, and strength) and thermal stability of the blend were all improved by the addition of wollastonite in a dose-dependent manner. Based on differential scanning calorimetry analysis, the crystallinity of rPET in the rPET/PBAT/wollastonite composites decreased in the presence of wollastonite, accompanied with a noticeable increase in the glass transition, cold crystallization, and crystallization temperatures, but only a slight change in the melting temperature was noted compared with those of the neat 80/20 wt% blend. Moreover, the addition of wollastonite at 30 wt% or higher showed a strong reduction in the melt dripping of the composites during combustion. J. VINYL ADDIT. TECHNOL., 00:000-000, 2015.

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Section: Introductionmentioning

confidence: 99%

Effects of poly(butylene adipate‐co‐terephthalate) and ultrafined wollastonite on the physical properties and crystallization of recycled poly(ethylene terephthalate)

Chuayjuljit

Chaiwutthinan

Raksaksri

et al. 2015

Vinyl Additive Technology

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“…In addition, glycolysis leads to the formation of undesired cyclic oligomers [128]. The monomers and low molecular weight oligomers obtained from glycolysis of PET were generally used for impaired ap- [175] plications, such as modifiers for PVC or other polymer composites [183,190,208,222]. Further, these glycolyized products were applied for synthesis of co-polymers of undefined composition [174,179,181,182,194,219].…”

Section: Glycolysismentioning

confidence: 99%

Recycling of poly(ethylene terephthalate) – A review focusing on chemical methods

Geyer¹,

Lorenz²,

Kandelbauer³

2016

Express Polym. Lett.

197

120

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Abstract.Recycling of poly(ethylene terephthalate) (PET) is of crucial importance, since worldwide amounts of PETwaste increase rapidly due to its widespread applications. Hence, several methods have been developed, like energetic, material, thermo-mechanical and chemical recycling of PET. Most frequently, PET-waste is incinerated for energy recovery, used as additive in concrete composites or glycolysed to yield mixtures of monomers and undefined oligomers. While energetic and thermo-mechanical recycling entail downcycling of the material, chemical recycling requires considerable amounts of chemicals and demanding processing steps entailing toxic and ecological issues. This review provides a thorough survey of PET-recycling including energetic, material, thermo-mechanical and chemical methods. It focuses on chemical methods describing important reaction parameters and yields of obtained reaction products. While most methods yield monomers, only a few yield undefined low molecular weight oligomers for impaired applications (dispersants or plasticizers). Further, the present work presents an alternative chemical recycling method of PET in comparison to existing chemical methods.

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“…They are due mainly to the air entrapment during the composite manufacturing and to the moisture absorbed when the material is stored and processed. Higher void content usually means high susceptibility to water penetration in addition to both increased variation and poor strength properties of composites [1,26]. In particular, a good composite should have less than 1 % voids, whereas a poorly made composite can have up to 5 % void content [3].…”

Section: Void Contentmentioning

confidence: 99%

The durability of basalt fibres reinforced polymer (BFRP) panels for cladding

et al. 2015

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The study focuses on two basalt composite laminate panels for cladding, produced by means of vacuum bagging technique. In particular, unidirectional and random basalt fabrics, with different areal weights, using epoxy resin as matrix, were used. According to the ISO 15686 methodology for the evaluation of durability, samples were subjected to cycles of artificial aging in climatic chamber and outdoor exposure, carrying out mechanical (i.e. quasi-static and dynamic) and calorimetric tests. The results show the effectiveness over time of produced basalt composite laminates and the initial increase of the mechanical performances after the first steps of accelerated aging

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Potential of using polyester reinforced coconut fiber composites derived from recycling polyethylene terephthalate (PET) waste

Cited by 41 publications

References 23 publications

Effects of poly(butylene adipate‐co‐terephthalate) and ultrafined wollastonite on the physical properties and crystallization of recycled poly(ethylene terephthalate)

Effects of poly(butylene adipate‐co‐terephthalate) and ultrafined wollastonite on the physical properties and crystallization of recycled poly(ethylene terephthalate)

Recycling of poly(ethylene terephthalate) – A review focusing on chemical methods

The durability of basalt fibres reinforced polymer (BFRP) panels for cladding

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