The dynamical viscoelasticity and tensile property of new highly filled charcoal powder/ultra-high molecular weight polyethylene composites

You, Zhipei; Li, Dagang

doi:10.1016/j.matlet.2013.09.013

Cited by 20 publications

(9 citation statements)

References 9 publications

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“…It also can be seen from Figure 7 that the loss factor tan δ of the composite material increases with the increase of temperature, but the difference in the tan δ curves of each composite material was not obvious, indicating that the interfacial interaction forced between rice husk powder and polyethylene matrix was similar. It can be seen from Figure 8 that the composite had two mechanical relaxation peaks in the tested temperature range, namely αand β-transformations [41,42]. Relaxation peaks can reveal the molecular interactions between rice husk fibre and high-density polyethylene [43].…”

Section: Effect Of Interface Modification On Dynamic Thermomechanicalmentioning

confidence: 99%

“…This improved the molecular motion ability and the segment mobility, thus exhibiting a weaker stiffness at low temperatures. It can be seen from Figure 8 that the composite had two mechanical relaxation peaks in the tested temperature range, namely α-and β-transformations [41,42]. Relaxation peaks can reveal the molecular interactions between rice husk fibre and high-density polyethylene [43].…”

Section: Effect Of Interface Modification On Dynamic Thermomechanicalmentioning

confidence: 99%

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Improvement of Rice Husk/HDPE Bio-Composites Interfacial Properties by Silane Coupling Agent and Compatibilizer Complementary Modification

et al. 2019

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Composites using agricultural and forestry residues as raw materials with potentially high-performance, multifunctional and biodegradable ecological advantages, are viewed as very promising for new-generation lightweight and low-cost bio-based sustainable building materials. At present, the research on wood-plastic composite materials is relatively mature. However, it is still a challenge to effectively use other biomass and improve the interface of the high-polymer compound system. Herein, we proposed a simple and effective method to enhance the interfacial adhesion properties of rice husk fibre and High Density Polyethylene (HDPE) composites by the silane coupling agent KH-550 and compatibilizer Maleic anhydride grafted polyethylene (MAPE) with complementary modification. It was found that the coupling agent KH-550 cross-linked with the hydroxyl group on the husk fibre surface and solidified with the high polymer by –NH–, –C=O– functional group generation. Compatibilizer MAPE strengthened the two phases by covalently bonding with an ester linkage and lowered the roughness of the cross-section of the composites. Meanwhile the modification enhanced the dispersibility, and mechanical properties of the husk-high polymer compound system, the bending and flexural strength were improved by 11.5% and 28.9% with KH-550, and MAPE added, respectively. The flexural strength of the composites increased by 40.7% after complementary modification. Furthermore, the complementary modification treatment reduced the hydrophilic hydroxyl groups and increased the molecular chain to improve the water-resistance, elastic modulus and toughness of the composite. This study prepared a bio-composite, which is expected to expand the use of agricultural and forestry residues as an extension of wood-plastic composites.

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Section: Effect Of Interface Modification On Dynamic Thermomechanicalmentioning

confidence: 99%

Section: Effect Of Interface Modification On Dynamic Thermomechanicalmentioning

confidence: 99%

Improvement of Rice Husk/HDPE Bio-Composites Interfacial Properties by Silane Coupling Agent and Compatibilizer Complementary Modification

et al. 2019

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“…Biochar can increase the degradation rate of the polymeric materials in soil, which is of great significance for environmental protection [56]. In 2013, You et al used charcoal powder to modify ultra-high molecular weight polyethylene (UHMWPE), and 104.7 MPa of tensile strength was obtained in 70% loading of the biochars in composites [57].…”

Section: Biochar Applicationsmentioning

confidence: 99%

Biocomposites from Organic Solid Wastes Derived Biochars: A Review

Zhang

Cai

et al. 2020

Materials

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The replacement of natural fiber with biochars to prepare biocomposites has attracted widespread attention recently. Biochar has unique properties, including the porous structure, large specific surface area, high thermal stability, good conductivity, renewable and abundant feedstock source, and environmental friendliness, which provide excellent properties, environmental benefits, and low production costs for biochar-based composites. Biocomposites from organic solid waste-derived biochars show good prospects worldwide in terms of positive social, environmental, and economic impacts. This paper reviews current biochars, elucidates the effects of biochars on the characteristics and performance of biochar composites, and points out the challenges and future development prospects of biochar composites.

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“…5, г). В области 70C тангенс механических потерь для всех систем демонстрирует переход, соответствующий -релаксации [30][31][32] что соответствует отсутствию изменений температуры плавления у композитов. Êак видно, при температуре плавления в композитах с индивидуальными наполнителями наблюдается появления пика потерь с увеличением содержания наполнителя.…”

Section: результаты и их обсуждениеunclassified

Electrophysical and Thermomechanical Properties of the Segregated Polymeric Systems Containing Carbon Fillers

2018

Nanosist. Nanomater. Nanotehnol.

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Исследованы электрические и механические свойства полимерных композитов с карбоновым микро-(антрацит-А), нано-(графен-Гр) и гибридным наполнителем (графен/антрацит-Гр/А) со статистическим и сегрегированным распределением наполнителя в полимерной матрице. Показано, что величина порога перколяции для сегрегированной системы на порядок ниже, чем в случае статистического распределения, а для систем, содержащих наноразмерный наполнитель, значительно ниже, чем для композита с микронаполнителем. Гибридный наполнитель графенантрацит (Гр/А) демонстрирует порог перколяции ниже рассчитанного по правилу смеси. Синергизм влияния микро-и нанонаполнителей объясняется бриджинг-эффектом, который обусловлен расположением наночастиц в промежутках между микрочастицами наполнителя. Тангенс механических потерь в области температуры плавления образует пик при увеличении концентрации наполнителя в композитах с индивидуальным наполнителем, что можно объяснить возрастанием потерь, связанных с трением частиц. В композиции с гибридным наполнителем этот эффект ослаблен ввиду того, что чередование микро-и наночастиц в стенке каркаса снижает взаимное механическое воздействие соседних частиц. Досліджено електричні та механічні властивості полімерних композитів з карбоновим мікро-(антрацит-А), нано-(графен-Гр) та гібридним наповнювачем (графен/антрацит-Гр/А) зі статистичним і сеґ

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The dynamical viscoelasticity and tensile property of new highly filled charcoal powder/ultra-high molecular weight polyethylene composites

Cited by 20 publications

References 9 publications

Improvement of Rice Husk/HDPE Bio-Composites Interfacial Properties by Silane Coupling Agent and Compatibilizer Complementary Modification

Improvement of Rice Husk/HDPE Bio-Composites Interfacial Properties by Silane Coupling Agent and Compatibilizer Complementary Modification

Biocomposites from Organic Solid Wastes Derived Biochars: A Review

Electrophysical and Thermomechanical Properties of the Segregated Polymeric Systems Containing Carbon Fillers

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