The influence of adding marble and granite dust on the mechanical and physical properties of PP composites

Awad, Ahmed H.; Abdel-Ghany, Ahmed W.; El-Wahab, Ayman A. Abd; El-Gamasy, Ramadan; Abdellatif, Mohamed Mehawed

doi:10.1007/s10973-019-09030-w

Cited by 26 publications

(14 citation statements)

References 24 publications

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“…From this test, it was observed that the PP has lower thermal expansion than that of HDPE and this is in agreement with Awad et al [16,17]. This can be related to the interatomic forces.…”

Section: Tmasupporting

confidence: 90%

Mechanical and Physical Properties of PP and HDPE

Awad¹,

Gamasy²,

Wahab³

et al. 2019

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The properties of these polymers, as in the case of any materials, depending on the molecular weight of the polymer and the structure of the polymer chains. The main objective of this work is to study the mechanical and physical properties of pure PP and HDPE. To obtain a full characterization of pure polymer, samples were produced using a compression molding technique. Polymeric samples successfully filled the cavity of the die. The mechanical properties of PP and HDPE were determined using three-point bending, compression, hardness and impact test. While the physical properties were studied through density and water absorption. Also, the thermal analysis behavior was determined by thermogravimetric analysis, differential scanning calorimetry and thermomechnical analysis. Results showed the structure affects the properties. The PP showed better elastic modulus and strength due to the methyl attached to the carbon that prevents the chain rotation and hence makes the material stronger but inflexible. On the other hand, the absorbed energy of PP is less than that of HDPE. The thermogravimetric analysis results show a single weight-loss event with a degradation temperature of 310°C for HDPE and 255°C for PP. The differential scanning calorimetry shows that the crystallinity of PP (≅51) is less than that for HDPE (≅68) due to the difference in the specific heat. The coefficient of thermal expansion of HDPE is higher than that of PP due to the stronger interatomic forces.

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“…From this test, it was observed that the PP has lower thermal expansion than that of HDPE and this is in agreement with Awad et al [16,17]. This can be related to the interatomic forces.…”

Section: Tmasupporting

confidence: 90%

Mechanical and Physical Properties of PP and HDPE

Awad¹,

Gamasy²,

Wahab³

et al. 2019

View full text Add to dashboard Cite

show abstract

“…It was observed that the density of pure PP slightly decreased with an increase in molding temperature and the density of MP-PP composites increased with the increment in the concentration of the filler [ 16 , 46 ]. For the composites fabricated with 60 wt.…”

Section: Resultsmentioning

confidence: 99%

“…% filler concentrations showed water absorptions of 0.013, 0.034, 0.024, and 0.022%, respectively. The results indicated that with an increase in filler concentration up to 40%, the water absorption increases, and beyond 40% filler concentration, this decreases in the case of all the injection molding temperatures of 160, 180, and 200 °C [ 33 , 46 ]. The water absorption of the MP-PP composite was a minimum of 0.006% at a 180 °C molding temperature with 80 wt.…”

Section: Resultsmentioning

confidence: 99%

Transforming Marble Waste into High-Performance, Water-Resistant, and Thermally Insulative Hybrid Polymer Composites for Environmental Sustainability

et al. 2020

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Marble waste is generated by marble processing units in large quantities and dumped onto open land areas. This creates environmental problems by contaminating soil, water, and air with adverse health effects on all the living organisms. In this work, we report on understanding the use of calcium-rich marble waste particulates (MPs) as economic reinforcement in recyclable polypropylene (PP) to prepare sustainable composites via the injection molding method. The process was optimized to make lightweight and high-strength thermally insulated sustainable composites. Physicochemical, mineralogical, and microscopic characterization of the processed marble waste particulates were carried out in detail. Composite samples were subsequently prepared via the injection molding technique with different filler concentrations (0%, 20%, 40%, 60%, and 80%) on weight fraction at temperatures of 160, 180, and 200 °C. Detailed analysis of the mechanical and thermal properties of the fabricated composites was carried out. The composites showed a density varying from 0.96 to 1.27 g/cm3, while the water absorption capacity was very low at 0.006%–0.034%. Marble waste particulates were found to considerably increase the tensile, as well as flexural, strength of the sustainable composites, which varied from 22.06 to 30.65 MPa and 43.27 to 58.11MPa, respectively, for the molding temperature of 160 °C. The impact strength of the sustainable composites was found to surge with the increment in filler concentration, and the maximum impact strength was recorded as 1.66 kJ/m2with 20% particulates reinforcement at a molding temperature of 200 °C. The thermal conductivity of the particulates-reinforced sustainable composites was as low as 0.23 Wm−1K−1 at a 200 °C molding temperature with 20% and 40% filler concentrations, and the maximum thermal conductivity was 0.48 Wm−1K−1 at a 160 °C molding temperature with 80% filler concentration. Our findings have shown a technically feasible option for manufacturing a lightweight composite with better mechanical and thermal properties using marble waste particulates as a potential civil infrastructural material.

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“…Polypropylene has excellent properties such as dimensional stability, thermal stability, optical properties, flame retardancy and high deformation temperature. The addition of granite powder to polypropylene was found to reduce the thermal expansion coefficient and improve heat resistance of the composite material [55].…”

Section: Composite Materialsmentioning

confidence: 99%

Recent Advances in the Reutilization of Granite Waste in Various Fields

Wang

Zhan

et al. 2021

J. Mater. Sci. Technol. Res.

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Quarrying and processing of granite produce large amounts of waste residues. Besides being a loss of resources, improper disposal of these wastes results in pollution of the soil, water and air around the dumpsites. The main components of granite waste are quartz, feldspars and a small amount of biotite. Due to its hard and dense texture, high strength, corrosion resistance and wear resistance, granite waste may be recycled into building materials, composite materials and fine ceramics, effectively improving their mechanical properties and durability. By using the flotation process, high value-added products such as potash feldspar and albite may be retrieved from granite waste. Also, granite waste has the potential for application in soil remediation and sewage treatment. This review presents recent advances in granite waste reutilization, and points out the problems associated with its use, and the related countermeasures, indicating the scale of high value-added reutilization of granite waste.

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The influence of adding marble and granite dust on the mechanical and physical properties of PP composites

Cited by 26 publications

References 24 publications

Mechanical and Physical Properties of PP and HDPE

Mechanical and Physical Properties of PP and HDPE

Transforming Marble Waste into High-Performance, Water-Resistant, and Thermally Insulative Hybrid Polymer Composites for Environmental Sustainability

Recent Advances in the Reutilization of Granite Waste in Various Fields

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