Shape memory behavior of carbon nanotube‐reinforced trans ‐1,4‐polyisoprene and low‐density polyethylene composites

2019 ◽  
Vol 31 (1) ◽  
pp. 107-113 ◽  
Author(s):  
Lin Xia ◽  
Hao Wu ◽  
Guixue Qiu
Keyword(s):  
Carbon Nanotube ◽  
Shape Memory ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Shape Memory Behavior ◽  
Polyethylene Composites

scholarly journals Shape Memory Behavior of Carbon Black-reinforced Trans-1,4-polyisoprene and Low-density Polyethylene Composites

Polymers ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 807 ◽  
Author(s):  
Lin Xia ◽  
Han Gao ◽  
Weina Bi ◽  
Wenxin Fu ◽  
Guixue Qiu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Black ◽  
Shape Memory ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Shape Memory Behavior ◽  
Blending Method ◽  
Shape Memory Properties ◽  
Shape Memory Composites ◽  
Properties Of Composites

Shape memory composites of trans-1,4-polyisoprene (TPI) and low-density polyethylene (LDPE) with easily achievable transition temperatures were prepared by a simple physical blending method. Carbon black (CB) was introduced to improve the mechanical properties of the TPI/LDPE composites. The mechanical, cure, thermal and shape memory properties of the TPI/LDPE/CB composites were investigated in this study. In these composites, the crosslinked network generated in both the TPI and LDPE portions acted as a fixed domain, while the crystalline regions of the TPI and LDPE portions acted as a reversible domain in shape memory behavior. We found the mechanical properties of composites were promoted significantly with an increase of CB content, accompanied with the deterioration of shape memory properties of composites. When CB dosage was 5 parts per hundred of rubber composites (phr), best shape memory property of composites was obtained with a shape fixity ratio of 95.1% and a shape recovery ratio of 95.0%.

The preparation of carbon nanotube/linear low density polyethylene composites by a water-crosslinking reaction

2007 ◽  
Vol 61 (13) ◽  
pp. 2744-2748 ◽  
Author(s):  
Chen-Feng Kuan ◽  
Hsu-Chiang Kuan ◽  
Chen-Chi M. Ma ◽  
Chia-Hsun Chen ◽  
Han-Lang Wu
Keyword(s):  
Carbon Nanotube ◽  
Low Density Polyethylene ◽  
Crosslinking Reaction ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Polyethylene Composites

scholarly journals Shape Memory Behavior of Natural Eucommia ulmoides Gum and Low-Density Polyethylene Blends with Two Response Temperatures

Polymers ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 580 ◽  
Author(s):  
Lin Xia ◽  
Shuai Chen ◽  
Wenxin Fu ◽  
Guixue Qiu
Keyword(s):  
Shape Memory ◽  
Thermal Response ◽  
Low Density Polyethylene ◽  
Eucommia Ulmoides ◽  
Low Density ◽  
Shape Memory Behavior ◽  
Blending Method ◽  
Shape Memory Properties ◽  
Different Temperatures ◽  
Eucommia Ulmoides Gum

A series of shape memory blends of natural Eucommia ulmoides gum (EUG) and low-density polyethylene (LDPE) with a bicontinuous cross-linked structure were prepared by a physical blending method, which could be used in the field of thermal response with two different temperatures. We report the shape memory properties of these blended materials with two response temperatures for the first time. The mechanical, curing, thermal and shape memory properties of the blends were studied in this manuscript. Schematic diagrams are proposed to illustrate the dual shape memory behaviors of the EUG/LDPE blends. Our study focused on observing the relationship between the shape memory behavior and the microscopic crystalline phase states in the blends. In the blends, both the cross-linked network and the LDPE crystalline regions could act as fixed domains, while the crystalline regions of LDPE or EUG could act as the reversible domain. The shape memory properties were mainly determined by the components of the fixed and reversible domains. We focused on the shape memory behavior of blends at 60 °C and 130 °C in this manuscript. The results showed that when the peroxide dicumyl peroxide (DCP) dosage was 1.0 phr, the blends exhibited acceptable shape behavior at 60 °C (R1f = 74.8%, R1r = 63.3%). At the same time, when DCP dosage was 0.4 phr, the shape memory behavior of the blends at 130 °C was good and much better than that at 60 °C (R2f = 91.1%, R2r = 89.4%).

Chemical modification of waste oil fly ash for improved mechanical and thermal properties of low density polyethylene composites

2011 ◽  
Vol 18 (6) ◽  
pp. 2275-2284 ◽  
Author(s):  
Muhammad J. Khan ◽  
Abdulhadi A. Al-Juhani ◽  
Reyad Shawabkeh ◽  
Anwar Ul-Hamid ◽  
Ibnelwaleed A. Hussein
Keyword(s):  
Thermal Properties ◽  
Fly Ash ◽  
Chemical Modification ◽  
Low Density Polyethylene ◽  
Mechanical And Thermal Properties ◽  
Low Density ◽  
Waste Oil ◽  
Oil Fly Ash ◽  
Polyethylene Composites

Effect of chemical modification of oil fly ash and compatibilization on the rheological and morphological properties of low-density polyethylene composites

2011 ◽  
Vol 122 (4) ◽  
pp. 2486-2496 ◽  
Author(s):  
Muhammad J. Khan ◽  
Abdulhadi A. Al-Juhani ◽  
Anwar Ul-Hamid ◽  
Reyad Shawabkeh ◽  
Ibnelwaleed A. Hussein
Keyword(s):  
Fly Ash ◽  
Chemical Modification ◽  
Morphological Properties ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Oil Fly Ash ◽  
Polyethylene Composites

Effect of fillers on mechanical properties of recycled low density polyethylene composites under weathered condition

2020 ◽  
Vol 15 (3) ◽  
pp. 44-49
Author(s):  
Ibiyemi A. Idowu ◽  
Olutosin O. Ilori
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Pure Water ◽  
Mechanical Tests ◽  
Filler Loading ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Hardness Property ◽  
Recycled Low Density Polyethylene ◽  
Polyethylene Composites

The study examined the effect of fillers on the mechanical properties of the recycled low density polyethylene composites under weathered condition with a view of managing the generation and disposal of plastic wastes. Discarded pure water sachets and fillers (glass and talc) were sourced and recycled. Recycled low density polyethylene (RLDPE) and preparation of RLDPE/glass, RLDPE/talc and RLDPE/glass/talc composites were carried out using a furnace at compositions of 0 – 40% in steps of 10% by weight. The mixtures were poured into hand-laid mould. The samples produced were exposed to sunlight for eight (8) weeks and their mechanical properties were studied. The results of mechanical tests revealed that tensile strength decreased with increasing filler loading while impact strength and hardness property increased marginally and considerably with increasing filler loading for all the composites respectively. The study concluded that glass and talc were able to reinforce recycled low density polyethylene under weathered condition. Keywords: Recycled Low Density Polyethylene (RLDPE); Fillers; Glass, Talc; Weathering condition; Sunlight; and Mechanical properties; Tensile strength, Impact and hardness

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