Thermal decomposition of low-density polyethylene in the presence of chlorine-containing polymers

In this article, calcium carbonate filled linear low density polyethylene (LLDPE) was prepared and the influences of particle size and size distribution on the rheological and mechanical properties of the composites were investigated. The results showed that the glass transition and thermal decomposition temperatures of LLDPE phase in LLDPE/CaCO3composites were shifted toward higher temperatures by the restriction of CaCO3particles on the segmental and long-range chain mobility of the LLDPE phase. The composites showed shear thinning behaviors and the viscosity decreased with the rational size and size distribution. Additionally, the elongation at break notably improved to some extent.

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A factorial experimental design for oxidative thermal decomposition of low-density polyethylene waste

Journal of Analytical and Applied Pyrolysis ◽

10.1016/j.jaap.2004.07.008 ◽

2004 ◽

Vol 72 (2) ◽

pp. 309-315 ◽

Cited By ~ 9

Author(s):

Adil Koç ◽

Ali Y. Bilgesü ◽

Rafig Alibeyli ◽

M. Çetin Koçak

Keyword(s):

Thermal Decomposition ◽

Experimental Design ◽

Low Density Polyethylene ◽

Low Density ◽

Factorial Experimental Design

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THE EFFECT OF FISH BONE ON THE DEVELOPMENT OF DENDRITES IN POLYETHYLENE AT BREAKDOWN VOLTAGE

EurasianUnionScientists ◽

10.31618/esu.2413-9335.2021.5.82.1229 ◽

2021 ◽

Vol 5 (1(82)) ◽

pp. 42-45

Author(s):

E. Gojayev ◽

Sh. Aliyeva ◽

V. Salimova ◽

Sh. Mekhtiyeva

Keyword(s):

Thermal Decomposition ◽

Electric Field ◽

Induction Period ◽

Breakdown Voltage ◽

Strong Electric Field ◽

Local Heating ◽

Fish Bone ◽

Low Density Polyethylene ◽

Low Density ◽

Optimal Amount

The paper presents the results of a study of the effect of fish bone additives on the development of dendrites in low-density polyethylene during its breakdown. It was found that with the introduction of additives from fish bone in an optimal amount it promotes an increase in the induction period of the appearance of dendrites in lowdensity polyethylene, due to a slowdown in the process of the appearance of local heating near the tip in a strong electric field and the appearance of an initial defect due to thermal decomposition of the polymer.

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Thermal Behavior and Kinetic Study of the Effects of Zinc-Modified Biochar Catalyst on Lignin and Low-Density Polyethylene (LDPE) Co-Pyrolysis

Transactions of the ASABE ◽

10.13031/trans.12968 ◽

2018 ◽

Vol 61 (6) ◽

pp. 1783-1793 ◽

Cited By ~ 2

Author(s):

Quan Bu ◽

Kun Chen ◽

Hervan Marion Morgan ◽

Jianghui Liang ◽

Xiaodong Zhang ◽

...

Keyword(s):

Thermal Decomposition ◽

Reaction Kinetics ◽

Reaction Rate ◽

Decomposition Analysis ◽

Order Reaction ◽

Low Density Polyethylene ◽

Low Density ◽

Second Order Reaction ◽

Third Order ◽

Modified Biochar

Abstract. The effects of low-density polyethylene (LDPE) and a zinc-modified biochar catalyst on lignin pyrolysis were analyzed by thermogravimetric analysis (TGA). Thermal decomposition analysis disclosed that lignin and LDPE co-pyrolysis was more complicated than pyrolysis of lignin alone, addition of the catalyst caused a decrease in reaction temperature and a slight increase in the conversion rate, and most of the compounds decomposed at 260°C for lignin alone and at about 450°C for the lignin/LDPE blend. The synergistic effect between lignin and LDPE in co-pyrolysis with the catalyst was also analyzed. The kinetic parameters indicated that lignin pyrolysis was a third-order reaction, while lignin/LDPE co-pyrolysis was a second-order reaction. Addition of LDPE to lignin during pyrolysis lowered the activation energy from 49.10 to 30.26 kJ mol-1. Analysis of the reaction kinetics revealed that the reaction rate improved with addition of the catalyst. Keywords: Biochar catalyst, LDPE, Lignin co-pyrolysis/pyrolysis, Reaction kinetics, Thermal decomposition.

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