Segregated conductive CNTs/HDPE/UHMWPE composites fabricated by plunger type injection molding

Zhai, Wei; Sun, Ruizhou; Sun, Hongling; Ren, Miaoning; Dai, Kun; Zheng, Guoqiang; Liu, Chuntai; Shen, Changyu

doi:10.1016/j.matlet.2018.06.114

Cited by 32 publications

(12 citation statements)

References 10 publications

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“…The injection molding method has the characteristics of processing complicated shapes, accurate dimensions or products with inserts, and high production efficiency. [138] 1-template; 2-mold template; 3-plasticizing unit; 4-drive device; 5-plunger; 6-nozzle; 7-cavity Fig. 6 Micron injection machine principle, with permission from [138] (Copyright © 2020 Elsevier B.V).…”

Section: The Development and Application Of Micron Injection Molding And Related Technologies 41 Micron Injection Moldingmentioning

confidence: 99%

Overview of Injection Molding Technology for Processing Polymers and Their Composites

Fu¹,

Xu²,

Liu³

et al. 2020

ES Mater.Manuf.

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Injection molding technology has been in development for almost 150 years. Injection molding is a molding technology that melts the material with the aid of a screw and an external heating device and then injects it into a mold to form the corresponding product as the mold cools. At present, many types of materials can be used to mold products by injection molding. Many requirements and problems in the processing of different materials have also caursed the birth of many molding processes. At present, injection molding has been applied in many fields, from daily necessities that are closely related to our lives to parts and components in the aerospace field. At present, injection molding still faces the challenges of processing new materials, and the continuous improvement of the existing equipment technology is required for the continuous development of injection molding.

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Section: The Development and Application Of Micron Injection Molding And Related Technologies 41 Micron Injection Moldingmentioning

confidence: 99%

Overview of Injection Molding Technology for Processing Polymers and Their Composites

Fu¹,

Xu²,

Liu³

et al. 2020

ES Mater.Manuf.

View full text Add to dashboard Cite

show abstract

“…Several parameters are also present that can be tuned to optimize the injection molding process; however, we are not mentioning those factors in this review. In a recent work, it was realized that plunger‐type injection molding produced segregated conductive CNTs/high density polyethylene (HDPE)/ultra‐high molecular weight polyethylene (UHMWPE) composites, which have shown much shorter production time (by at least 45%) than that of the CNTs/HDPE/UHMWPE composites fabricated by conventional hot compression . Figure shows the CNTs dispersion in CNTs/HDPE/UHMWPE composites by microscopic studies.…”

Section: Dispersion Of Cnts Within Polymer Matricesmentioning

confidence: 99%

“…Optical images of CNTs/HDPE/UHMWPE composites perpendicular to the flowing direction with CNTs contents of (A) 0.23 vol%, (B) 1.37 vol%, and (C) 2.3 vol%. (D‐F) SEM images showing the fractured surface of CNTs/HDPE/UHMWPE composite having a CNTs content of 2.3 vol% . Reproduced with permission from Elsevier [Color figure can be viewed at wileyonlinelibrary.com]…”

Section: Dispersion Of Cnts Within Polymer Matricesmentioning

confidence: 99%

Melt‐mixed carbon nanotubes/polymer nanocomposites

Banerjee

Dutta

2019

Polymer Composites

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This article reviews the recent development in performance and fabrication of carbon nanotubes (CNTs)‐based polymer nanocomposites synthesized by melt‐mixed process. CNTs have attracted enormous attention, since its presence (even in low concentration) causes drastic improvements in the mechanical and electrical properties of several polymer composites. It is suggested that the dispersion state of CNTs within polymer matrices is dictated by the cohesive strength of the CNTs “agglomerates.” Based on this suggestion, this review involves an in‐depth investigation on the origin of this CNTs “agglomerates” when present within polymer matrices. Attempts have also been done to investigate and correlate the varying extent of CNTs “agglomerates” in different polymer matrices. It is considered that the extent of dispersion of CNTs “agglomerates” depends on the interfacial interaction between the two phases, difference in their melt viscosities, and types of CNTs, compatibilizer and modifier used. A comprehensive study has been done on the effect of processing parameters used during melt‐mixing process; functionalization of CNTs, and the effect of compatibilizers and modifier on the final properties and morphology. Herein, an attempt has been done to study the correlation between the synthetic procedure, developed structure, and observed properties of nanocomposites of polymers and CNTs.

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“…This makes it possible to expand the applications of UHMWPE in medicine, mechanical engineering, mining, oil and gas, and chemical industries, as well as agriculture and other areas of technology [13][14][15][16][17]. For example, UHMWPE-based composites loaded with fibrous fillers as reinforcing components possess improved mechanical and tribological properties [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Increasing Wear Resistance of UHMWPE by Loading Enforcing Carbon Fibers: Effect of Irreversible and Elastic Deformation, Friction Heating, and Filler Size

et al. 2020

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The aim of the study was to develop a design methodology for the UltraHigh Molecular Weight Polyethylene (UHMWPE)-based composites used in friction units. To achieve this, stress–strain analysis was done using computer simulation of the triboloading processes. In addition, the effects of carbon fiber size used as reinforcing fillers on formation of the subsurface layer structures at the tribological contacts as well as composite wear resistance were evaluated. A structural analysis of the friction surfaces and the subsurface layers of UHMWPE as well as the UHMWPE-based composites loaded with the carbon fibers of various (nano-, micro-, millimeter) sizes in a wide range of tribological loading conditions was performed. It was shown that, under the “moderate” tribological loading conditions (60 N, 0.3 m/s), the carbon nanofibers (with a loading degree up to 0.5 wt.%) were the most efficient filler. The latter acted as a solid lubricant. As a result, wear resistance increased by 2.7 times. Under the “heavy” test conditions (140 N, 0.5 m/s), the chopped carbon fibers with a length of 2 mm and the optimal loading degree of 10 wt.% were more efficient. The mechanism is underlined by perceiving the action of compressive and shear loads from the counterpart and protecting the tribological contact surface from intense wear. In doing so, wear resistance had doubled, and other mechanical properties had also improved. It was found that simultaneous loading of UHMWPE with Carbon Nano Fibers (CNF) as a solid lubricant and Long Carbon Fibers (LCF) as reinforcing carbon fibers, provided the prescribed mechanical and tribological properties in the entire investigated range of the “load–sliding speed” conditions of tribological loading.

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Segregated conductive CNTs/HDPE/UHMWPE composites fabricated by plunger type injection molding

Cited by 32 publications

References 10 publications

Overview of Injection Molding Technology for Processing Polymers and Their Composites

Overview of Injection Molding Technology for Processing Polymers and Their Composites

Melt‐mixed carbon nanotubes/polymer nanocomposites

Increasing Wear Resistance of UHMWPE by Loading Enforcing Carbon Fibers: Effect of Irreversible and Elastic Deformation, Friction Heating, and Filler Size

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