Production and Characterization of Polyethylene/Calcium Carbonate Composite Materials by Using Calcium Carbonate Dry and Wet Coated with Different Fatty Acids

Özen, İlhan; Şimşek, Süleyman; Eren, Feride

doi:10.1177/096739111302100310

Cited by 5 publications

(3 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…19 Most plastic industries use stearic acid as a compatibilizer for the polyolefin/CaCO 3 blends, where Ca-mineral is coated first with the fatty acid before blending with polyolefins. [29][30][31][32] Like other fillers, the presence of CaCO 3 increases polymer matrix rigidity, increasing melt-viscosity of the composites, [33][34][35] and thus induces melt-processing difficulties. Interestingly, OPE has unique low-viscosity properties and good thermal stability at high temperatures.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the thermoplastic behavior and mechanical performance of recycledHDPE/CaCO₃composites using oxidized polyethylene

Ghosh

2023

J of Applied Polymer Sci

View full text Add to dashboard Cite

There is a growing interest in sustainable materials based on recycled or natural feedstocks for the circular economy. Ideally, thermoplastic materials are anticipated to show appropriate melt-flow behavior for thermo-mechanical recycling, good melt stability, and mechanical performance. Thermoplastic polyolefins such as polyethylenes are used as single-use packaging materials and generate environmental concerns. This article reports the melt-processing and characterization of composite materials based on recycled high-density polyethylene (rHDPE) and naturally abundant calcium carbonate (CaCO 3 ) mineral at various mass ratios such as 70/30, 50/50, and 30/70. Oxidized polyethylene (OPE) is used as an additive, with 20 wt% replacement of rHDPE, to improve the materials' mechanical performance and thermoplastic behavior. Various characteristics such as tensile, viscoelastic, melt-flow, phase morphology, and thermomechanical recyclability of the materials are analyzed. It reveals that composites with high CaCO 3 content compatibilized with OPE show improved tensile strength and modulus. For example, the composite based on 10/70/20 (wt%) of rHDPE/CaCO 3 /OPE shows an average tensile strength of 27.4 MPa and Young's modulus of 4.5 GPa, in contrast to the rHDPE sample, which shows an average tensile strength of 12.4 MPa and Young's modulus of 967 MPa. Notably, adding OPE decreases the melt-viscosity of the rHDPE/ CaCO 3 materials, thus improving the composites' melt-flow and thermoplastic behavior. This study indicates the possibility of developing natural CaCO 3 -rich polymer composites with thermoplastic behavior for real-life applications with superior mechanical and melt-flow properties suitable for thermomechanical recycling.

show abstract

Section: Introductionmentioning

confidence: 99%

Enhancing the thermoplastic behavior and mechanical performance of recycledHDPE/CaCO₃composites using oxidized polyethylene

Ghosh

2023

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…But HDPE filled with CaCO 3 particles stay very brittle if interface adhesion between the HDPE matrix and the CaCO 3 filler is not good. To improve the interaction between HDPE and CaCO 3 it is necessary, either chemically modify the HDPE, or provide a surface graft treatment to the filler [3,[11][12][13][14]. The addition of CaCO 3 to HDPE can increase the crystallization and decrease the melting temperature and crystallization temperature using treated CaCO 3 .…”

Section: Introductionmentioning

confidence: 99%

The Effects of Calcium Carbonate Filler on HDPE Pipe

Kherici¹,

Benouali²,

Nouredine³

2022

Adv. Sci. Technol. Res. J.

View full text Add to dashboard Cite

The objective of this work is the preparation and the characterization of high density polyethylene /calcium carbonate (HDPE/CaCO 3 ) composites. Polyethylene composites, containing 10-35 wt.% of CaCO 3 and HDPE with MFI (Melt Flow index) (0.550 g/10 mn) were prepared with co-extrusion process using extruder type Cincinati 90D. Thermal and mechanical studies were made in order to determine the parameters for obtaining a material (corrugated pipe) with optimal properties. The composite viscosity increased with filler content, suggesting the formation of filler agglomerates. Thermal analysis shows that addition of 30% CaCO 3 increased the thermal stability of HDPE around 32°C, decreasing the processing temperature of composites in 15°C. Regarding to the mechanical tests, the ring stiffness of the composites decreased with the addition of CaCO 3 above 35 wt.%. According to the obtained results, we suggest that HDPE/CaCO 3 composites could be used in the pipe production where tensile strengths higher than 25 MPa are not required and for service temperatures between 30°C and 70°C.

show abstract

“…Calcium carbonate (CaCO3) is one of the most abundant materials in nature and main material of cement (Ozen et al 2013;Jeong et al 2017). It is massively used for cement-based materials like concrete and mortar because of its remarkable durability (Chunxiang et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Short communication: The diversity of ureolytic bacteria isolated from limestone in East Java, Indonesia based on amino acid sequences encoded by ureC

et al. 2019

View full text Add to dashboard Cite

Abstract. Zulaika E, Utomo MAP, Alami NH, Kuswytasari ND, Shovitri M, Bayuaji R, Prasetyo EN. 2019. Short communication: The diversity of ureolytic bacteria isolated from limestone in East Java, Indonesia based on amino acid sequences encoded by ureC. Biodiversitas 20: 2316-2320. Ureolytic bacteria isolated from limestone are capable to produce urease enzyme which can breaks down urea into carbonate (CO32), has been utilized for various building material bioremediation and restoration. In this present study, we figured out the diversity and genetic relationship of α sub-unit ureC gene among six ureolytic bacteria (JA1, JB2, JB3, JA4, AK4, and SU1) which were isolated from limestone area in East Java province. PCR was conducted to detect the gene which encoded active site of urease, ureC. Followed by sequences translation using BLAST-X (Basic Local Alignment Search Tool) based on the name and function of formed proteins and then aligned to the conserved domain database. Furthermore, the functions and characters of formed proteins were described. Based on PCR results, all isolates showed 340 bp DNA band which indicate the presence of ureC gene. The results of BLAST-X, JB2 isolates showed 100% similarity with the α sub-unit ureC gene from Lysinibacillus sphaericus B1-CDA (WP_054549252.1). Whereas, JA1 isolates showed 88% similarity (lowest) with the α sub-unit ureC gene from Bacillus cihuensis FJAT-14515 (WP_028391929.1). The present study reveals that ureC phylogeny can be used in order to investigate ureolytic bacteria species which isolated from calcareous area in East Java province.

show abstract

Production and Characterization of Polyethylene/Calcium Carbonate Composite Materials by Using Calcium Carbonate Dry and Wet Coated with Different Fatty Acids

Cited by 5 publications

References 3 publications

Enhancing the thermoplastic behavior and mechanical performance of recycledHDPE/CaCO₃composites using oxidized polyethylene

Enhancing the thermoplastic behavior and mechanical performance of recycledHDPE/CaCO₃composites using oxidized polyethylene

The Effects of Calcium Carbonate Filler on HDPE Pipe

Short communication: The diversity of ureolytic bacteria isolated from limestone in East Java, Indonesia based on amino acid sequences encoded by ureC

Contact Info

Product

Resources

About

Production and Characterization of Polyethylene/Calcium Carbonate Composite Materials by Using Calcium Carbonate Dry and Wet Coated with Different Fatty Acids

Cited by 5 publications

References 3 publications

Enhancing the thermoplastic behavior and mechanical performance of recycledHDPE/CaCO3composites using oxidized polyethylene

Enhancing the thermoplastic behavior and mechanical performance of recycledHDPE/CaCO3composites using oxidized polyethylene

The Effects of Calcium Carbonate Filler on HDPE Pipe

Short communication: The diversity of ureolytic bacteria isolated from limestone in East Java, Indonesia based on amino acid sequences encoded by ureC

Contact Info

Product

Resources

About

Enhancing the thermoplastic behavior and mechanical performance of recycledHDPE/CaCO₃composites using oxidized polyethylene

Enhancing the thermoplastic behavior and mechanical performance of recycledHDPE/CaCO₃composites using oxidized polyethylene