Development of environmentally friendly high-density polyethylene and turmeric spent composites: Physicomechanical, thermal, and morphological studies

2010 ◽  
pp. n/a-n/a ◽  
Author(s):  
Murtuza Ali Syed ◽  
B. Ramaraj ◽  
Sania Akhtar ◽  
Akheel Ahmed Syed
Keyword(s):  
High Density Polyethylene ◽  
Environmentally Friendly ◽  
High Density ◽  
Morphological Studies

Morphological Studies of Oriented Crystallization of High-Density Polyethylene

1978 ◽  
Vol 11 (6) ◽  
pp. 1210-1215 ◽  
Author(s):  
Takeji Hashimoto ◽  
Satoshi Ishido ◽  
Hiromichi Kawai ◽  
Andrzej Ziabicki
Keyword(s):  
High Density Polyethylene ◽  
High Density ◽  
Morphological Studies ◽  
Oriented Crystallization

Studi Karakteristik Stabilitas dan Konstruksi Kapal Berbahan High Density Polyethylene (HDPE)

2021 ◽  
Vol 12 (2) ◽  
pp. 315-323
Author(s):  
Muammar Kadhafi ◽  
◽  
Sunardi Sunardi ◽  
Agus Triono ◽  
Wahida Kartika Sari ◽  
...  
Keyword(s):  
High Density Polyethylene ◽  
Environmentally Friendly ◽  
High Density ◽  
International Maritime Organization ◽  
Loading Conditions ◽  
Marine Tourism ◽  
Design Software ◽  
The Stability ◽  
Naval Architect ◽  
Main Material

The development of fishing and marine tourism requires the support of naval architecture, especially in small boat. The use of wood as the main material for shipbuilding has recently become a problem considering the decreasing availability of wood, while the use of fiber is classified as less environmentally friendly because it uses chemical resin and difficult to repair when it breaks and cannot be recycled. The aim of this research is to design the High-Density Polyethylene (HDPE) boat. The design was carried out by using naval architect design software. The stability of boat was calculated by using three loading conditions such as when leaving the port, in the sea and when returning to the port. The International Maritime Organization (IMO) safety criteria was using to evaluation of boat stability where the three loading conditions have met the IMO standard. The construction of HDPE boat was carried out by using DNV rules.

scholarly journals Pengaruh mikroplastik polietilen dan oxo-degradable (Oxium) pada pertumbuhan Mikroalga Tetraselmis Chuii

2021 ◽  
Vol 19 (2) ◽  
pp. 211-218
Author(s):  
Adian Khoironi ◽  
Khoirul Huda ◽  
Imron Hambyah ◽  
Inggar Dianratri
Keyword(s):  
Growth Rate ◽  
Optical Density ◽  
Aquatic Environment ◽  
High Density Polyethylene ◽  
Negative Impact ◽  
Environmentally Friendly ◽  
High Density ◽  
Density Measurements ◽  
Tetraselmis Chuii ◽  
Plastic Bags

Salah satu cara yang digunakan di Indonesia dalam menanggulangi berlimpahnya jumlah sampah plastik di lingkungan perairan adalah dengan menggantikan kantong plastik berbahan polimer polietilen (PE) dengan plastik oxodegradable yang disebut oxium. Penelitian ini dilakukan dengan tujuan untuk melihat pengaruh mikroplastik polietilen jenis HDPE (High Density Polyethylene) dengan plastic oxodegradable oxium. Penelitian dilakukan dengan menggunakan mikroalga Tetraselmis chuii sebagai mikroorganisme yang akan mendapat perlakuan mikroplastik dengan konsentrasi yang berbeda. Dari Hasil pengukuran optical density untuk menentukan laju pertumbuhan mikroalga Tetraselmis Chuii menunjukkan bahwa laju pertumbuhan Tetraselmis  dengan perlakuan mikroplastik polietilen mengalami penurunan yang signifikan dibandingkan dengan mikroplastik oxium. Konsentrasi mikroplastik ikut berperan dalam menentukan laju pertumbuhan Tetraselmis chuii di mana pada perlakuan mikroplastik oxium terjadi penurunan hingga 37,66% pada konsentrasi mikroplastik 300mg/500mL dan 81,70% pada perlakuan mikroplastik polietilen dengan konsentrasi 200mg/500mL. Mikroplastik polietilen dan oxium memberikan dampak negatif pada organisme tingkat rendah disebabkan oleh kemampuannya dalam melepas bahan aditif yang bersifat toksik sehingga diperlukan solusi yang lebih baik untuk menggantikan fungsi plastik dengan bahan yang lebih ramah bagi lingkungan hidup.  ABSTRACTOne of the methods used in Indonesia in tackling the abundance of plastic waste in the aquatic environment is to replace plastic bags made of polyethylene (PE) polymer with oxodegradable plastic called oxium. This research was conducted with the aim of examining the effect of HDPE (High Density Polyethylene) microplastic polyethylene with oxodegradable oxium plastic. The research was conducted using the microalgae Tetraselmis chuii as microorganisms that will receive microplastic treatment with different concentrations. From the results of optical density measurements to determine the growth rate of Tetraselmis chuii microalgae, it was shown that the growth rate of Tetraselmis with polyethylene microplastics treatment decreased significantly compared to oxium microplastics. The concentration of microplastics played a role in determining the growth rate of Tetraselmis chuii where in the oxium microplastic treatment there was a decrease of up to 37.66% at the microplastic concentration of 300mg/500mL and 81.70% at the polyethylene microplastic treatment with a concentration of 200mg/500mL. Polyethylene and oxyum microplastics have a negative impact on low-level organisms due to their ability to release toxic additives so that better solutions are needed to replace the function of plastics with materials that are more environmentally friendly.

scholarly journals Effects of heat energy on morphology and properties of selective inhibition sintered high density polyethylene

2019 ◽  
Vol 13 (1) ◽  
pp. 4403-4414 ◽  
Author(s):  
Rajamani D ◽  
E Balasubramanian
Keyword(s):  
High Density Polyethylene ◽  
Structural Integrity ◽  
Threshold Level ◽  
Selective Inhibition ◽  
Heat Energy ◽  
High Density ◽  
Selective Inhibition Sintering ◽  
Morphological Studies ◽  
Property Evaluation ◽  
The Impact

This study provides an account of comprehensive experimentation and mechanical characterisation of high density polyethylene (HDPE) parts that are fabricated through an additive manufacturing process called selective inhibition sintering (SIS). In this study, test specimens are fabricated by selective fusing of HDPE particles through controlled heating. Morphological studies and mechanical property evaluation of these specimens are carried out to assess the impact of energy on sintering of HDPE particles and structural integrity. Results indicate that, heat energy up to a threshold level of 28.48 J/mm2 results in superior fusion of the HDPE particles, and further increase causes degradation of the structure. Surface roughness, tensile and flexural properties of SIS parts are compared with those of injection moulded parts for assessing their suitability to engineering applications.

Sign in / Sign up

Export Citation Format

Share Document