Modification of low-density polyethylene based activated carbon using titanium dioxide for carbon monoxide and hydrocarbon adsorption

2019 ◽  
Author(s):  
Yuliusman ◽  
Mega Puspita Sari ◽  
Azmia Rizka Nafisah
Keyword(s):  
Carbon Monoxide ◽  
Titanium Dioxide ◽  
Activated Carbon ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Hydrocarbon Adsorption

Nano-titanium dioxide/basic magnesium hypochlorite-containing linear low-density polyethylene composite film on food packaging application

2020 ◽  
Vol 10 (6) ◽  
pp. 771-779
Author(s):  
Jing Deng ◽  
Qi Jue Chen ◽  
Ding Jie Chen ◽  
Luo Jie Zheng ◽  
Wen Li ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Titanium Dioxide ◽  
Composite Film ◽  
Food Packaging ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Nano Composite ◽  
Sensory Score ◽  
Nano Titanium Dioxide

The aim of this research was to probe the potential application of nano-titanium dioxide (TiO2)/basic magnesium hypochlorite (BMH)-containing linear low-density polyethylene (LLDPE) composite film in grape fresh-keeping. Mechanical properties, transparency, barrier performance and antibacterial activity of the nano-composite membrane were measured, and results showed that the antibacterial zone diameter of TiO2/BMH on pathogen-Aspergillus niger was 31.4 mm, with mixing ratio of BMH/TiO2 to 2:1. It was clearly shown that the synthesized nano-composite films decreased mechanical properties and transparency of the membrane, and also had a significant impact on sensory score, mass loss rate, decay rate, ascorbic acid (Vc) content and titratable acid content compared with LLDPE films. Moreover, the results revealed that the LLDPE antibacterial film can be effectively used for storing grapes, preserving the flavor of grapes and had an obviously effect in prolonging grapes’ shelf life.

scholarly journals Preparation and properties of low density polyethylene-activated carbon composite foams

2017 ◽  
Author(s):  
Darunee Aussawasathien ◽  
Kotchaporn Jariyakun ◽  
Thongchai Pomrawan ◽  
Kittipong Hrimchum ◽  
Rungsima Yeetsorn ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Carbon Composite ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Composite Foams

A novel production of phase-divided jet-fuel-range hydrocarbons and phenol-enriched chemicals from catalytic co-pyrolysis of lignocellulosic biomass with low-density polyethylene over carbon catalysts

2020 ◽  
Vol 4 (7) ◽  
pp. 3687-3700
Author(s):  
Dengle Duan ◽  
Yayun Zhang ◽  
Hanwu Lei ◽  
Moriko Qian ◽  
Elmar Villota ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Lignocellulosic Biomass ◽  
Jet Fuel ◽  
Douglas Fir ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Carbon Catalysts ◽  
First Time

The catalytic co-pyrolysis of Douglas fir and low-density polyethylene with commercial activated carbon catalysts was investigated for the first time.

Characterization of Solidified Radioactive Waste Due to the Incorporation of High-and Low-Density Polyethylene Granules and Titanium Dioxide in Mortar Matrices

1996 ◽  
Vol 465 ◽  
Author(s):  
Aleksandar Perić
Keyword(s):  
Titanium Dioxide ◽  
Radioactive Waste ◽  
Average Diameter ◽  
Weight Percent ◽  
Low Density Polyethylene ◽  
Accelerated Ageing ◽  
Low Density ◽  
Leach Rate ◽  
Leaching Experiments ◽  
Mortar Matrix

ABSTRACTThe rutile form of titanium dioxide (TiO2) and granules of high density polyethylene (PEHD) and low density polyethylene (PELD) were used to prepare mortar matrices for immobilization of radioactive waste materials containing ‘137Cs. PELD,PEHD and TiO2 were added to mortar matrix preparations with the objective of improving physico-chemical characteristics of the radwaste-mortar matrix mixtures, in particular the leach-rate of the immobilized radionuclide. The diameters of the PELD and PEHD used varied from 0.2 to 2.0 mm. One type of PELD and two types of PEHD were used to replace 50 weight percent of stone granules, average diameter of 2 mm, normally used in the matrix, in order to decrease the porosity and density of the mortar matrix and to avoid segregation of the stone particles at the bottom of the immobilized radioactive waste cylindrical form. TiO2 was also added to the mortar formulation, replacing 5 and 8 weight percent of the total cement weight, for each PEHD and PELD formulation. Cured samples were investigated under temperature stress conditions, where the temperature extremes were: Tmill = -20°C,Tmax= +70°C. Samples were periodically immersed in distilled water at the ambient room temperature, after each freezing and heating treatment. Results of accelerated leaching experiments for these samples and samples prepared exclusively with polyethylenes replacing 100 percents of the stone granules and TiO2, treated in nonaccelerated leaching experiments, were compared. Even using an accelerated ageing leach test that overestimates 137Cs leach rates, it can be deduced, that radionuclide leach rates from the radioactive waste mortar mixture forms were improved. Leach rates decreased from 5 percent, for the material prepared with stone aggregate, to 3.1 to 4.0 percent, for the materials prepared solely with PEHD, PELD or TiO2, and to about 3 percents for all six types of the TiO2-PEHD and TiO2-PELD mixtures tested.

Surface Treatment on Low Density Polyethylene with TiO2 Nano-Particles for Packaging Printing

2012 ◽  
Vol 506 ◽  
pp. 615-618 ◽  
Author(s):  
D. Phokhaphaiboonsuk ◽  
Lerpong Jarupan ◽  
Chiravoot Pechyen ◽  
C. Nandhivajrin
Keyword(s):  
Titanium Dioxide ◽  
Surface Energy ◽  
Epoxy Resin ◽  
Film Surface ◽  
Nano Particles ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Epoxide Group ◽  
Ldpe Film ◽  
Coated Film

The surface of low density polyethylene (LDPE) film was modified by coating with titanium dioxide (TiO2) nano-particles in epoxy resin in order to increase the surface energy. Epoxy/TiO2 yielded a bridging effect between TiO2 particles and polymer matrix, while epoxide group played a role as dispersant. The surface energy of coated film and uncoated film were compared. The modification of LDPE surface used different two TiO2 nano-particles in size (100 and 150 nm) and weight loadings (0.5, 1.0, 2.0 and 4.0 %wt/wt). The results showed that the surface energy of LDPE films were raised up after the coating but it was still lower than the commercial film. Changes in colors and the agglomeration of TiO2 particles caused by non-homogeneity to the epoxy resin were detected on the film surface. To this end, it can be concluded that the TiO2 coating improves the printability on LDPE film.

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