Recycling of poly(propylene)-based car bumpers as carrier resin for short glass fiber composites

Hajj, Nemr El; Seif, Sylvain; Zgheib, Nancy

doi:10.1007/s10163-020-01128-w

Cited by 7 publications

(3 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the crystallization thermograms of analyzed samples, only two exothermic peaks were observed, which may be attributed to PP’s very low content and the fact that its crystallization occurred at very similar temperatures to HDPE and led to the overlapping of peaks [ 62 ]. Similar effects related to the temperature positions of crystallization peaks of PE and PP were noted by Hajj et al [ 63 ]. It can be seen that the crystallization temperature of both PE types, determined as the temperature position of the peak, is the highest for sample M1, indicating faster crystallization due to the presence of impurities, as suggested by the FTIR analysis.…”

Section: Resultssupporting

confidence: 84%

Wastes from Agricultural Silage Film Recycling Line as a Potential Polymer Materials

et al. 2021

View full text Add to dashboard Cite

The recycling of plastics is currently one of the most significant industrial challenges. Due to the enormous amounts of plastic wastes generated by various industry branches, it is essential to look for potential methods for their utilization. In the presented work, we investigated the recycling potential of wastes originated from the agricultural films recycling line. Their structure and properties were analyzed, and they were modified with 2.5 wt % of commercially available compatibilizers. The mechanical and thermal performance of modified wastes were evaluated by tensile tests, thermogravimetric analysis, and differential scanning calorimetry. It was found that incorporation of such a small amount of modifiers may overcome the drawbacks caused by the presence of impurities. The incorporation of maleic anhydride-grafted compounds enhanced the tensile strength of wastes by 13–25%. The use of more ductile compatibilizers—ethylene-vinyl acetate and paraffin increased the elongation at break by 55–64%. The presence of compatibilizers also reduced the stiffness of materials resulting from the presence of solid particles. It was particularly emphasized for styrene-ethylene-butadiene-styrene and ethylene-vinyl acetate copolymers, which caused up to a 20% drop of Young’s modulus. Such effects may facilitate the further applications of analyzed wastes, e.g., in polymer film production. Thermal performance was only slightly affected by compatibilization. It caused a slight reduction in polyethylene melting temperatures (up to 2.8 °C) and crystallinity degree (up to 16%). For more contaminated materials, the addition of compatibilizers caused a minor reduction in the decomposition onset (up to 6 °C). At the same time, for the waste after three washing cycles, thermal stability was improved. Moreover, depending on the desired properties and application, materials do not have to go through the whole recycling line, simplifying the process, reducing energy and water consumption. The presented results indicate that it is possible to efficiently use the materials, which do not have to undergo the whole recycling process. Despite the presence of impurities, they could be applied in the manufacturing of products which do not require exceptional mechanical performance.

show abstract

Section: Resultssupporting

confidence: 84%

Wastes from Agricultural Silage Film Recycling Line as a Potential Polymer Materials

et al. 2021

View full text Add to dashboard Cite

show abstract

“…However, the optical method did not show any significant SEA change. El Haji et al [ 153 ] fabricated the GFRP composite using post-consumer polypropylene car bumper waste (PP–CBW) and short glass fiber using melt processing and enhanced the interfacial bonding by coupling agents such as Retain and maleic anhydride-grafted linear low-density polyethylene (LLDPE–g–MA). They have shown that the Retain resulted in a higher impact property than LLDPE–g–MA.…”

Section: Polymer Composite For Automotive Bumper Beammentioning

confidence: 99%

Lightweight Glass Fiber-Reinforced Polymer Composite for Automotive Bumper Applications: A Review

et al. 2022

View full text Add to dashboard Cite

The enhancement of fuel economy and the emission of greenhouse gases are the key growing challenges around the globe that drive automobile manufacturers to produce lightweight vehicles. Additionally, the reduction in the weight of the vehicle could contribute to its recyclability and performance (for example crashworthiness and impact resistance). One of the strategies is to develop high-performance lightweight materials by the replacement of conventional materials such as steel and cast iron with lightweight materials. The lightweight composite which is commonly referred to as fiber-reinforced plastics (FRP) composite is one of the lightweight materials to achieve fuel efficiency and the reduction of CO2 emission. However, the damage of FRP composite under impact loading is one of the critical factors which affects its structural application. The bumper beam plays a key role in bearing sudden impact during a collision. Polymer composite materials have been abundantly used in a variety of applications such as transportation industries. The main thrust of the present paper deals with the use of high-strength glass fibers as the reinforcing member in the polymer composite to develop a car bumper beam. The mechanical performance and manufacturing techniques are discussed. Based on the literature studies, glass fiber-reinforced composite (GRP) provides more promise in the automotive industry compared to conventional materials such as car bumper beams.

show abstract

“…Instead, more complex structures, e.g., glass fiber-reinforced composites, are used for advanced applications [ 13 , 14 , 15 , 16 ]. However, they are, compared with polymer blends, heavier in weight and not easy to recycle [ 14 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

The Multiple Uses of Polypropylene/Polyethylene Terephthalate Microfibrillar Composite Structures to Support Waste Management—Composite Processing and Properties

et al. 2021

View full text Add to dashboard Cite

Composite processing and subsequent characterization of microfibrillar composites (MFC) were the focus of this work. Compression molding of wound MFC filaments was used to fabricate MFC composites. The MFC composites were composed of polypropylene (PP) as matrix materials and polyethylene terephthalate (PET) as reinforcement fibers. The PP/PET blends were mixed with PET contents ranging from 22 wt% to 45 wt%. The effect of processing parameters, pressure, temperature, and holding time on the mechanical properties of the MFCs was investigated. Tensile tests were conducted to optimize the processing parameter and weight ratio of PET. Tensile strength and modulus increased with the increase in PET content. PP/45 wt% PET MFC composites properties reached the value of PP/30 wt% GF. Falling weight tests were conducted on MFC composites. The MFC composites showed the ability to absorb the impact energy compared to neat PP and PP/30 wt% GF.

show abstract

Recycling of poly(propylene)-based car bumpers as carrier resin for short glass fiber composites

Cited by 7 publications

References 20 publications

Wastes from Agricultural Silage Film Recycling Line as a Potential Polymer Materials

Wastes from Agricultural Silage Film Recycling Line as a Potential Polymer Materials

Lightweight Glass Fiber-Reinforced Polymer Composite for Automotive Bumper Applications: A Review

The Multiple Uses of Polypropylene/Polyethylene Terephthalate Microfibrillar Composite Structures to Support Waste Management—Composite Processing and Properties

Contact Info

Product

Resources

About