Lightweight composites from long wheat straw and polypropylene web

Zou, Yi; Huda, Shah; Yang, Yiqi

doi:10.1016/j.biortech.2009.10.042

Cited by 103 publications

(50 citation statements)

References 23 publications

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“…Poly (l-Lactic acid) reinforced ramie fiber shows the sound absorption coefficients of 0.089 to 0.353 in the frequency range of 250 to 1600 Hz (Chen et al 2010). Polypropylene reinforced with wheat straw had higher sound absorption coefficients (0.03 to 0.2) within the range of 0.3 to 1.8 kHz than that of composites reinforced with jute fiber reinforced polypropylene composites (Zou et al 2010). Sound absorption coefficients of zein-jute composites showed higher sound absorption (0.06 to 0.8) compared with polypropylene-jute composites between frequency ranges of 1 and 5 kHz (Reddy and Yang 2011).…”

Section: Introductionmentioning

confidence: 95%

Processing and Characterization of Epoxy/Luffa Composites: Investigation on Chemical Treatment of Fibers on Mechanical and Acoustical Properties

et al. 2014

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This study focuses on the development of epoxy/luffa composites and the investigation of their mechanical and acoustical properties. The fibers underwent an alkalization treatment, and its effects on the mechanical and sound absorption properties of the composites were measured utilizing a universal testing machine and two-microphone transfer function impedance tube methods. The effects of chemical modifications on the fibers were studied using a scanning electron microscope (SEM). The thermal analyses of composites were conducted using thermo-gravimetric analysis (TGA). The composite's functional group was identified and evaluated using Fourier transform infrared spectroscopy (FTIR). The sound absorption coefficient of untreated and treated composites across a range of frequencies was very similar. Untreated composites appeared to perform better than those that were treated. Compared with untreated fiber composites, there was an improvement in the tensile strength of the treated fiber composites. The SEM characterization showed that the alkaline treatment changed the morphology of the fibers, resulting in a decrease in the sound absorption coefficients of the composites. The thermal characterization of composites showed that dehydration and degradation of lignin occurred in a temperature range of 40 to 260 °C, and the maximum percentage of cellulose was found to decompose at 380 °C.

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Section: Introductionmentioning

confidence: 95%

Processing and Characterization of Epoxy/Luffa Composites: Investigation on Chemical Treatment of Fibers on Mechanical and Acoustical Properties

et al. 2014

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“…Whole and split wheat straws (WS) with polypropylene (PP) webs to make lightweight composites with properties superior to jute-PP composites with the same density were investigated (19) . The effect of WS concentration, WS length, split configuration, and mechanically split on flexural and tensile properties of the composites has been investigated.…”

Section: Polypropylene (Pp) and Polyethylene (Pe)mentioning

confidence: 99%

Review on the Manufacture of Particleboard from Agro-Wastes Using Different Adhesives

2014

Egypt. J. Chem.

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HE RISING concern towards environmental issues and on the other hand, the need for more versatile polymer-based materials has led to increasing interest about polymer composites filled with natural-organic fillers coming from renewable and biodegradable sources. This review illustrates the main paths and results of researches for manufacturing of particleboard from agro wastes using different synthetic and natural adhesives,as well as appropriate references for further in-depth studies.

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“…The voids between PP and reinforcements are considered as defects to decrease the mechanical performance of composites, thus the volume of these voids is calculated as void content. However the volume of the other two types of voids has not been calculated, because the volume of inner voids in the molten PP is negligible [37,38] and the micro inner voids in the reinforcements (SG and jute) have much little influence on the mechanical properties compared to those large voids between reinforcement and matrix material [39,40]. The densities of lightweight composites and PP are 0.47 and 0.90 g/cm 3 .…”

Section: Void Content Calculationmentioning

confidence: 99%

Lightweight Polypropylene Composites Reinforced by Long Switchgrass Stems

Zou

Yang

2010

J Polym Environ

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Switchgrass (SG) stems with lengths up to 10 cm have been used as reinforcement to make lightweight composites with polypropylene (PP) webs. The long SG stems, with simple cut or split and without chemical treatment, were used directly in the composites. Utilizing SG stems for composites not only increases the values of SG but also provides a green, sustainable and biodegradable material for the composites industry. Lightweight composites are preferred, especially for automotive applications due to the potential saving in energy. In this research, the effects of manufacturing parameters on the properties of composites have been studied. Although the tensile properties of SG stem are significantly worse than jute fiber, SG stem with low bulk density is found to better reinforce the lightweight composites. Compared with the jute-PP composites of the same density (0.47 g/cm 3 ), composites reinforced by the split SG stems have 56% higher flexural strength, 19% higher modulus of elasticity, 15% higher impact resistance, 63% higher Young's modulus, 52% lower tensile strength, and similar sound absorption property. The SG-PP composites with optimized properties have the potential to be used for industrial applications such as the support layers in automotive interiors, office panels and ceiling tiles.

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Lightweight composites from long wheat straw and polypropylene web

Cited by 103 publications

References 23 publications

Processing and Characterization of Epoxy/Luffa Composites: Investigation on Chemical Treatment of Fibers on Mechanical and Acoustical Properties

Processing and Characterization of Epoxy/Luffa Composites: Investigation on Chemical Treatment of Fibers on Mechanical and Acoustical Properties

Review on the Manufacture of Particleboard from Agro-Wastes Using Different Adhesives

Lightweight Polypropylene Composites Reinforced by Long Switchgrass Stems

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