Evaluation of mechanical and thermal properties and creep behavior of micro- and nano-CaCO3 particle-filled HDPE nano- and microcomposites produced in large scale

Sepet, Harun; Aydemir, Bülent; Tarakçıoğlu, Necmettin

doi:10.1007/s00289-019-02922-9

Cited by 17 publications

(11 citation statements)

References 32 publications

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“…The behavior of polymer composite melts depends not only on the molecular weight, molecular distribution, and chain branching of the polymer [ 31 ] but also on the size and morphology of the filler. [ 1 ] The MFR results in Figure 6 shows that the melt mass flow rate of the ESO–G–OA modified CaCO 3 /reHDPE composite is higher than that of the unmodified CaCO 3 /reHDPE composite.…”

Section: Resultsmentioning

confidence: 99%

“…Nanometer and micron CaCO 3 materials are often used as fillers in thermoplastic polyethylene, polypropylene, and polyvinyl chloride because of their small size effect and high specific surface area. [1,2] However, the presence of several polar groups, such as hydroxyl groups, makes the CaCO 3 surface hydrophilic and oleophobic. This results in poor compatibility with the non-polar thermoplastic matrix of polymers, leading to the development of a two-phase structure that affects the mechanical properties of the composites.…”

Section: Introductionmentioning

confidence: 99%

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Bio‐based compatibiliser enhancing the interface properties of CaCO₃/recycled high‐density polyethylene composites

Liu

et al. 2023

Vinyl Additive Technology

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The fabrication of composites of two or more materials with different polarities requires the use of compatibilisers to improve interface properties. However, most compatibilisers used for industrial production are derived from the cracking products of petroleum, which is a limited resource susceptible to price fluctuations and pollutes the environment. In this study, a new compatibiliser derived from renewable plant‐oil‐based products, ESO–G–OA, was designed and synthesized using epoxy soybean oil, oleic acid, and glycerol. Scanning electron microscopy results showed that ESO–G–OA can effectively improve the dispersion of CaCO3 in a recycled high‐density polyethylene (reHDPE) matrix and reduce the interfacial gap between the two phases. The analysis of the mechanical properties showed that the ESO–G–OA‐modified composite has higher tensile and impact strength than unmodified samples. The ESO–G–OA modification improved the thermal stability and melt flow of the composite and reduced the energy consumption during processing. Moreover, the excellent compatibility of ESO–G–OA can improve the comprehensive properties of CaCO3/reHDPE composites, compensating for the performance reduction caused by the multiple processing steps necessary to obtain reHDPE. This confirmed that ESO–G–OA has promising application prospects in the production of composites requiring compatibilisers.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Bio‐based compatibiliser enhancing the interface properties of CaCO₃/recycled high‐density polyethylene composites

Liu

et al. 2023

Vinyl Additive Technology

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“…3 Fillers are divided into two categories as functional fillers and cavity fillers (mainly to reduce cost). [28][29][30] Friction modifiers are of particular importance among functional filling materials. Friction modifiers have various roles in increasing or changing friction and mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Optimization and assessment of brake pad production parameters and organic Juniperus drupacea cone powder additive ratio using the Taguchi method

Aras¹,

Tarakçıoğlu

2021

Journal of Composite Materials

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In this study, an organic brake pad content was created to increase the overall tribological performance of the automobile brake system. Brake lining samples were obtained by hot molding method using juniperus drupacea cones powder which is not found in the literature in addition to barite, phenolic resin, fiber types (glass, carbon and basalt) and coke in the lining content. In order to determine the most ideal production conditions and content ratios, parameter combinations based on the L18(21 × 35) Taguchi orthogonal index were used according to the density, hardness, wear rate, friction coefficient objective functions. The density and hardness of the samples produced based on the orthogonal design were measured. A wear test was performed on a pin-on-disc type tribometer and the wear rate and friction coefficients were calculated according to the obtained values. Signal to noise ( S/N) ratio and ANOVA analysis were performed to determine the brake pad composition with the most ideal tribological properties. According to the results, the mixing time is 15 min., the molding temperature is 160 °C, the molding pressure is 100 MPa and the molding time is 15 min., have been found to be the optimum production conditions. In addition, it was observed that the density and hardness decreased as the amount of juniperus drupacea cone powder was increased. For this reason, it has been observed that the juniperus drupacea cone powder used for the first time in the brake lining composition can be used in lining content up to 25%, preferably up to 10% by weight.

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“…Fillers are added to polymer composites to improve several desired properties [20][21][22] . Fillers can improve the dimensional stability, enhance the thermal and electrical insulation and modify the mechanical performance of the filled polymer composites [23][24][25] .…”

Section: Introductionmentioning

confidence: 99%

Thermal Analysis of Oil Shale Ash-filled High-density Polyethylene Composites

2021

JJC

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Thermal analysis was performed to evaluate the impact of the addition of oil shale ash (OSA) to high-density polyethylene (HDPE) polymer matrix using differential scanning calorimetry (DSC) and thermo-gravimetric analysis (TGA). Extrusion and press molding processes were used to compound the OSA-filled HDPE polymer composites containing 0, 5, 15 and 25 wt% OSA, for which the thermal properties and the characteristics of the composites were studied. Investigation of the thermal properties of the OSA-HDPE composite is necessary for selecting processing conditions and the appropriate application field. The DSC results demonstrated that OSA addition only marginally affected the glass transition temperature Tg of the composite formulations. The melting temperature Tm showed a decreasing trend with increased OSA fraction, while the crystallization temperature Tcryst showed an increasing trend. The heat of fusion ∆Hm, the heat of crystallization ∆Hcryst and the percentage of crystallinity decreased on the addition of OSA filler. The TGA results demonstrated that the thermal stability of the polymer composite matches that of the neat polymer behavior up to 350 °C after which the thermal stability of the filled polymer composite increases with increased filler content. Above 360 °C, the weight loss of the neat polymer as well as of the polymer composite is accelerated up to 480 °C where all tested samples become fully degraded.

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Evaluation of mechanical and thermal properties and creep behavior of micro- and nano-CaCO3 particle-filled HDPE nano- and microcomposites produced in large scale

Cited by 17 publications

References 32 publications

Bio‐based compatibiliser enhancing the interface properties of CaCO₃/recycled high‐density polyethylene composites

Bio‐based compatibiliser enhancing the interface properties of CaCO₃/recycled high‐density polyethylene composites

Optimization and assessment of brake pad production parameters and organic Juniperus drupacea cone powder additive ratio using the Taguchi method

Thermal Analysis of Oil Shale Ash-filled High-density Polyethylene Composites

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Evaluation of mechanical and thermal properties and creep behavior of micro- and nano-CaCO3 particle-filled HDPE nano- and microcomposites produced in large scale

Cited by 17 publications

References 32 publications

Bio‐based compatibiliser enhancing the interface properties of CaCO3/recycled high‐density polyethylene composites

Bio‐based compatibiliser enhancing the interface properties of CaCO3/recycled high‐density polyethylene composites

Optimization and assessment of brake pad production parameters and organic Juniperus drupacea cone powder additive ratio using the Taguchi method

Thermal Analysis of Oil Shale Ash-filled High-density Polyethylene Composites

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Bio‐based compatibiliser enhancing the interface properties of CaCO₃/recycled high‐density polyethylene composites

Bio‐based compatibiliser enhancing the interface properties of CaCO₃/recycled high‐density polyethylene composites