Vitrimers of polyolefin elastomer with physically cross-linked network

2021 ◽  
Vol 28 (6) ◽  
Author(s):  
Wei-Yu Wang ◽  
Xiang-Jun Zha ◽  
Rui-Ying Bao ◽  
Kai Ke ◽  
Zheng-Ying Liu ◽  
...  
Keyword(s):  
Polyolefin Elastomer

scholarly journals Structure and Properties of Polyoxymethylene/Silver/Maleic Anhydride-Grafted Polyolefin Elastomer Ternary Nanocomposites

Polymers ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 1954
Author(s):  
Yang Liu ◽  
Xun Zhang ◽  
Quanxin Gao ◽  
Hongliang Huang ◽  
Yongli Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Maleic Anhydride ◽  
Ag Nanoparticles ◽  
Decomposition Temperature ◽  
Melt Mixing ◽  
Elongation At Break ◽  
Maximum Value ◽  
Polyolefin Elastomer ◽  
Local Defects

In the present study, silver (Ag) nanoparticles and maleic anhydride-grafted polyolefin elastomer (MAH-g-POE) were used as enhancement additives to improve the performance of the polyoxymethylene (POM) homopolymer. Specifically, the POM/Ag/MAH-g-POE ternary nanocomposites with varying Ag nanoparticles and MAH-g-POE contents were prepared by a melt mixing method. The effects of the additives on the microstructure, thermal stability, crystallization behavior, mechanical properties, and dynamic mechanical thermal properties of the ternary nanocomposites were studied. It was found that the MAH-g-POE played a role in the bridging of the Ag nanoparticles and POM matrix and improved the interfacial adhesion between the Ag nanoparticles and POM matrix, owing to the good compatibility between Ag/MAH-g-POE and the POM matrix. Moreover, it was found that the combined addition of Ag nanoparticles and MAH-g-POE significantly enhanced the thermal stability, crystallization properties, and mechanical properties of the POM/Ag/MAH-g-POE ternary nanocomposites. When the Ag/MAH-g-POE content was 1 wt.%, the tensile strength reached the maximum value of 54.78 MPa. In addition, when the Ag/MAH-g-POE content increased to 15wt.%, the elongation at break reached the maximum value of 64.02%. However, when the Ag/MAH-g-POE content further increased to 20 wt.%, the elongation at break decreased again, which could be attributed to the aggregation of excessive Ag nanoparticles forming local defects in the POM/Ag/MAH-g-POE ternary nanocomposites. Furthermore, when the Ag/MAH-g-POE content was 20 wt.%, the maximum decomposition temperature of POM/Ag/MAH-g-POE ternary nanocomposites was 398.22 °C, which was 71.39 °C higher than that of pure POM. However, compared with POM, the storage modulus of POM/Ag/MAH-g-POE ternary nanocomposites decreased with the Ag/MAH-g-POE content, because the MAH-g-POE elastomer could reduce the rigidity of POM.

Effect of Functionalized MWCNTs with Surfactant and Coupling Agent on Properties of LDPE/POE Blends

2011 ◽  
Vol 43 (6) ◽  
pp. 543-558 ◽  
Author(s):  
Z. Chen ◽  
S. Chen ◽  
J. Zhang
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Tensile Strength ◽  
Multiwalled Carbon Nanotubes ◽  
Crystallization Behavior ◽  
Low Density Polyethylene ◽  
Favorable Effect ◽  
Low Density ◽  
Multiwalled Carbon ◽  
Polyolefin Elastomer

The surfactant, sodium dodecylbenzenesulfonate (NaDDBS) and coupling agents, γ-aminopropyltriethoxy sliane (KH550) and isopropyl dioleic(dioctylphosphate) titanate (NDZ101) were used to treat multiwalled carbon nanotubes in this work. The effects of surface modification of multiwalled carbon nanotubes on crystallization behavior, mechanical properties, and electrical properties of low density polyethylene/polyolefin elastomer/multiwalled carbon nanotubes composites were studied. The results showed that NaDDBS, KH550, and NDZ101 had a favorable effect of improving the dispersion of multiwalled carbon nanotubes, but it cannot improve the interfacial interactionbetween multiwalled carbon nanotubes and the matrix. The improvement in dispersion favored the crystallization behavior and mechanical properties. Modified multiwalled carbon nanotubes had a better acceleration nucleation effect than raw multiwalled carbon nanotubes on low density polyethylene/polyolefin elastomer blends at low content (≤1 wt%). The tensile strength of low density polyethylene/polyolefin elastomer/multiwalled carbon nanotubes composites with modified multiwalled carbon nanotubes increased with lower multiwalled carbon nanotubes content (≤1 wt%), and KH550 and NDZ101 led low density polyethylene/polyolefin elastomer/multiwalled carbon nanotubes composites to possess a higher tensile strength than that of NaDDBS with 1 wt% content. NaDDBS, KH550, and NDZ101 had a minor influence on the dielectric properties of the composites and even caused a decrease in the dielectric loss of composites with 10 wt% multiwalled carbon nanotubes content.

scholarly journals STUDY ON AGEING RESISTANCE OF POLYPROPYLENE/NANO-SCALE RUTILE TITANIUM DIOXIDE/POE POLYOLEFIN ELASTOMER COMPOSITES

2006 ◽  
Vol 006 (2) ◽  
pp. 219-224 ◽  
Author(s):  
Gang GUO ◽  
Jie YU ◽  
Zhu LUO ◽  
Zhiyong QIAN ◽  
Wanxia HUANG ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Nano Scale ◽  
Polyolefin Elastomer ◽  
Elastomer Composites ◽  
Rutile Titanium Dioxide

Double yielding behavior of in situ microfibrillar polyolefin elastomer/poly(lactic acid) composites: Effect of microfibrillar morphology

2020 ◽  
Vol 60 (7) ◽  
pp. 1676-1685
Author(s):  
Jing Sun ◽  
Shanshan Luo ◽  
Anrong Huang ◽  
Min Shi ◽  
Heng Luo ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Poly Lactic Acid ◽  
Polyolefin Elastomer ◽  
Yielding Behavior

Effect of Compatibilizer and Flexibilizer on the Mechanical Properties of Acrylonitrile-Butadiene-Styrene)/Poly(Methyl Methacrylate) Blends

2014 ◽  
Vol 496-500 ◽  
pp. 317-321
Author(s):  
Shou Hai Wang ◽  
Jun Gao ◽  
Gu Ren Fei ◽  
Ping Zhang ◽  
Jun Huang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Maleic Anhydride ◽  
Methyl Methacrylate ◽  
Acrylonitrile Butadiene Styrene ◽  
Screw Extruder ◽  
Polyolefin Elastomer ◽  
Twin Screw ◽  
Orthogonal Tests ◽  
Butadiene Styrene

Acrylonitrile-butadiene-styrene (ABS) / polymethyl methacrylate (PMMA) with the addition of maleic anhydride grafted polystyrene (KT-5) and polyolefin elastomer (POE) were melt processed in a co-rotating twin-screw extruder. The effect of KT-5 and POE content on the mechanical properties of ABS/PMMA was investigated. Experiment results indicate that KT-5 can improve the tensile strength and the composites are toughened effectively as the addition of POE. According to Orthogonal tests, it demonstrates that POE ha a greater effect on the blends than KT-5, and there exist no obvious interactivity between the two components.

Sign in / Sign up

Export Citation Format

Share Document