Improvement in volume resistivity and morphology of a blend of polyolefin elastomer with linear low-density polyethylene

Dana, Mehri; Zohuri, Gholamhossein; Asadi, Saeid

doi:10.1007/s13726-019-00725-3

Cited by 6 publications

(1 citation statement)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These regions fill the charge gaps, thereby increasing the resistivity. 30 It is also interesting to note that, with the increase in dose, i.e., degree of crosslinking, the resistivity is increasing. The formed crosslinks act as charge traps, preventing the movement of electrons.…”

Section: Measurement Of Volume Resistivitymentioning

confidence: 99%

Effect of electron beam radiation on the mechanical, electrical, heat shrinkable and morphological properties of linear low-density polyethylene/polyolefin elastomer blends

Agarwal,

Singh,

Ray Chowdhury

et al. 2023

Progress in Rubber, Plastics and Recycling Technology

View full text Add to dashboard Cite

The blending of polymers is an efficient means for developing new materials in a less hazardous and more economical way compared to the synthetic route. Polymers with different properties are blended to obtain a new material with combined properties. In this study, a thermoplastic elastomer blend is prepared by melt mixing a metallocene-based polyolefin elastomer (Engage 8003, abbreviated as EN) with linear low-density polyethylene (LLDPE, abbreviated as LL) using a twin-screw extruder in various compositions. To investigate the effect of the electron beam on the properties, LL, EN and their blends are irradiated in the 50–250 kGy dose range. The samples are subjected to gel fraction, mechanical, dynamic mechanical, hardness, heat shrinkability, volume resistivity and morphological studies. The % gel fraction, hardness and heat shrinkability of a sample increase with an increase in the irradiation dose. With increasing LL content, Young’s modulus and ultimate tensile strength of the blends are increased, maintaining the % elongation at break in an attractive region. LE64 (60 wt% LL and 40 wt% EN) and LE46 (40 wt% LL and 60 wt% EN) blends show optimized mechanical and dynamic mechanical properties. Irradiation further increases the tensile strength and Young’s modulus of LE64 up to 150 kGy and LE46 up to 200 kGy. The volume resistivity of the LE64 blend increases tenfold and quadruples for LE46 compared to non-irradiated blends when irradiated at 200 kGy. The morphological structures of the non-irradiated and crosslinked blends support the outcome of the obtained properties nicely.

show abstract

Section: Measurement Of Volume Resistivitymentioning

confidence: 99%

Effect of electron beam radiation on the mechanical, electrical, heat shrinkable and morphological properties of linear low-density polyethylene/polyolefin elastomer blends

Agarwal,

Singh,

Ray Chowdhury

et al. 2023

Progress in Rubber, Plastics and Recycling Technology

View full text Add to dashboard Cite

show abstract

Interaction of common cocatalysts in Ziegler–Natta‐catalyzed olefin polymerization

Fallah

Bahri‐Laleh

Didehban

et al. 2019

Applied Organom Chemis

View full text Add to dashboard Cite

In this study, density functional theory (DFT) molecular modeling studies were performed to explore mechanisms underlying the interactions of cocatalysts in Ziegler–Natta olefin polymerization using a range of commercially available cocatalysts, namely, trimethylaluminum (in monomeric and dimeric form, Al2Me6), dimethylaluminum chloride (in monomeric and dimeric form, Al2Me4Cl2), and triisobutylaluminum. In this regard, after exploring structural and electronic features of cocatalysts, by steric maps and conceptual DFT, their interaction with possible impurities in hydrocarbon solvents and monomer feeds such as NH3, CH3OH, H2O, H2S, CO2, and O2 was considered. Then, activation of Ti species, adsorbed on the (110) and (104) surfaces, with the assistance of cocatalysts was studied as well. In this aspect, two possible reactions were investigated: (i) formation of first vacancy on Ti center and (ii) formation of first Ti–C bond by transalkylation reaction with cocatalysts. Finally, the effect of cocatalysts on the stereospecificity of Ti center adsorbed on the (110) surface was also taken into account by DFT calculations.

show abstract

Synthesis and evaluation of a new three-metallic high-performance Ziegler–Natta catalyst for ethylene polymerization: experimental and computational studies

et al. 2021

View full text Add to dashboard Cite

Improvement in volume resistivity and morphology of a blend of polyolefin elastomer with linear low-density polyethylene

Cited by 6 publications

References 13 publications

Effect of electron beam radiation on the mechanical, electrical, heat shrinkable and morphological properties of linear low-density polyethylene/polyolefin elastomer blends

Effect of electron beam radiation on the mechanical, electrical, heat shrinkable and morphological properties of linear low-density polyethylene/polyolefin elastomer blends

Interaction of common cocatalysts in Ziegler–Natta‐catalyzed olefin polymerization

Synthesis and evaluation of a new three-metallic high-performance Ziegler–Natta catalyst for ethylene polymerization: experimental and computational studies

Contact Info

Product

Resources

About