Development of hemp fiber composites with recycled high density polyethylene grocery bags

2021 ◽  
Author(s):  
Carlos Angulo ◽  
Siddhartha Brahma ◽  
Alejandra Espinosa‐Dzib ◽  
Robert Peters ◽  
Katherine M. E. Stewart ◽  
...  
Keyword(s):  
High Density Polyethylene ◽  
Fiber Composites ◽  
High Density ◽  
Hemp Fiber

Distinct positive temperature coefficient effect of polymer–carbon fiber composites evaluated in terms of polymer absorption on fiber surface

2016 ◽  
Vol 18 (11) ◽  
pp. 8081-8087 ◽  
Author(s):  
Xi Zhang ◽  
Shaodi Zheng ◽  
Xiaofang Zheng ◽  
Zhengying Liu ◽  
Wei Yang ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Temperature Coefficient ◽  
High Density Polyethylene ◽  
Fiber Surface ◽  
Fiber Composites ◽  
Positive Temperature Coefficient ◽  
High Density ◽  
Carbon Fiber Composites ◽  
Positive Temperature ◽  
Ptc Effect

The positive temperature coefficient (PTC) effect for high-density polyethylene (HDPE)/carbon fiber (CF) composites was studied.

Investigation on the uniformity of high-density polyethylene/wood fiber composites in a twin-screw extruder

2009 ◽  
Vol 113 (4) ◽  
pp. 2081-2089 ◽  
Author(s):  
Jingjing Zhang ◽  
Chul B. Park ◽  
Ghaus M. Rizvi ◽  
Hanxiong Huang ◽  
Qingping Guo
Keyword(s):  
High Density Polyethylene ◽  
Wood Fiber ◽  
Fiber Composites ◽  
High Density ◽  
Twin Screw Extruder ◽  
Screw Extruder ◽  
Twin Screw

Thermal Properties of High Density Polyethylene/Poly(Vinyl Alcohol) Fiber Composites Prepared Using Laboratory Mixing Extruder

2021 ◽  
Vol 315 ◽  
pp. 114-119
Author(s):  
Achmad Chafidz M.S. ◽  
Dewi Selvia Fardhyanti ◽  
Megawati ◽  
Prima Astuti Handayani ◽  
Muhammad Rizal
Keyword(s):  
Thermal Properties ◽  
Vinyl Alcohol ◽  
High Density Polyethylene ◽  
Crystallinity Index ◽  
Fiber Composites ◽  
High Density ◽  
Poly Vinyl Alcohol ◽  
Scanning Calorimetry ◽  
Pva Fiber ◽  
Melting And Crystallization

This paper focuses on the preparation of High Density Polyethylene/Poly (Vinyl Alcohol) Fiber composites which was fabricated via melt blending/compounding method using a Laboratory Mixing Extruder (LME). The effect of PVA fiber concentrations (i.e. 0, 5, 10, 20, 30 wt%) on the thermal properties (i.e. melting and crystallization) of the composites was investigated. The thermal properties of the composites were analysed using a Differential Scanning Calorimetry (DSC). The DSC analysis results exhibited that the presence of PVA fiber did not considerably change the melting and crystallization properties of the composites. The melting temperature (Tm) of all the composites samples were similar, which was in the range of 130 - 131 °C. The highest Tm was belong to sample PVAC-20 (i.e. 20 wt% PVA fiber). In the other hand, the crystallinity index (Xc) of the HPDE/PVA fiber composites decreased with the increase of PVA fiber concentrations. The Xc of the composites decreased from 56.7 % for PVAC-0 to 49.8 % for PVAC-20. Additionally, in term of crystallization behavior of the composites, the effect of PVA loadings on the crystallization temperature (Tc) of the composites was also not significant. The Tc of all composites samples were similar, which was about 115 °C. It can be suggested that the addition of PVA fiber did not affect the crystallization process of the matrix.

Effect of Salicylic Acid / Ethanol Treatment on Tensile Properties and Morphology Analysis of Recycled High Density Polyethylene / Wood Fiber Composites

2014 ◽  
Vol 554 ◽  
pp. 17-21
Author(s):  
M.P.M. Hanif ◽  
A.G. Supri ◽  
Z. Firuz
Keyword(s):  
Salicylic Acid ◽  
Tensile Properties ◽  
High Density Polyethylene ◽  
Wood Fiber ◽  
Fiber Composites ◽  
High Density ◽  
Rotor Speed ◽  
Elongation At Break ◽  
Morphology Analysis ◽  
Lower Elongation

The effect of salicylic acid as a coupling agent on the tensile properties, and morphology analysis of recycled high density polyethylene/wood fiber (rHDPE/WF) composites were studied. Both composites rHDPE/WF and rHDPE/WFM (treatment with salicylic acid) were prepared using Brabender Plasticorder at temperature of 160°C and rotor speed of 50 rpm. The result indicated that rHDPE/WFM composites with salicylic acid exhibit higher tensile strength and modulus of elasticity but lower elongation at break than rHDPE/WF composites. The SEM micrographs showed that the wood fiber was more widely dispersed in the rHDPE matrix with addition of ethyl salicylate than rHDPE/WFM.

Effects of Ramie Fiber Treatment on Thermo-Oxidative Properties of High-Density Polyethylene/Ramie Fiber Composites

2010 ◽  
Vol 146-147 ◽  
pp. 542-545
Author(s):  
Wen Lei ◽  
Chao Ren
Keyword(s):  
Coupling Agent ◽  
High Density Polyethylene ◽  
Color Stability ◽  
Fiber Composites ◽  
High Density ◽  
Flexural Properties ◽  
Ramie Fiber ◽  
Oxidative Aging ◽  
Aging Test ◽  
Melting Properties

On the investigations on the flexural properties,color stability and melting properties,the effects of treating ramie fiber with silane coupling agent on the anti-thermo-oxidative aging properties of high density polyethylene(HDPE)/ ramie fiber composites were studied.The results show that,treating the fiber with 3% coupling agent can improve the flexural strength and modulus of the composites before the aging test by 15.9% and 21.7% respectively,and also it can improve the flexural properties of the composites after the aging test;the modified composites will be more color stable,less color difference,and less disminish of the color during the aging test;the peak melting temperatures of the modified composites when aged for 0,500,1000,1500 and 3000h will be increased by 0.6，0.2， 0.5,2.3 and 3.8 oC from those of the unmodified composites;the flexural properties,color stability and melting properties of HDPE / ramie fiber composites during thermo-oxidative aging tests all indicate that treating ramie fiber with coupling agent can improve the anti-thermo-oxidative properties of the composites.

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