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Zhang, Xiangwu; Pan, Yi; Jianfeng, Cheng; Yi, Xiaosu

doi:10.1023/a:1004845426786

Cited by 16 publications

(8 citation statements)

References 8 publications

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“…Figure 6 shows that the max torque increases as the filler content increased, indicating that the viscosity of the composite increases due to addition of Sn-Zn30/Al fiber. On the contrary, in the previous study of Zhang et al [23], viscosity was decreased while LMA content was increasing in polystyrene/ Sn-Pb30 (Sn 70 wt% and lead (Pb) 30 wt%). In case of polystyrene/Sn-Pb30 composites, LMA was entirely liquid at the processing temperature of 190°C.…”

Section: Max Torque During Compounding Ofmentioning

confidence: 61%

Novel method of polymer/low-melting-point metal alloy/light metal fiber composite fabrication

Park¹,

Shin²

2016

Express Polym. Lett.

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Abstract.A novel method of polymer/low-melting-point metal alloy (LMA)/light metal fiber composite fabrication is proposed to solve problems of polymer/metal composites. The first step is mixing light metal particles with LMA at a temperature above the melting point of the LMA. The second step is cold extrusion of the LMA/light metal particles to fabricate LMA/light metal fibers. Thus, the LMA/light metal fibers with a density of ~4.5 g/cm 3 were obtained. The last step is compounding a polymer with the LMA/light metal fibers at the processing temperature of the polymer above the melting points of the LMA. The effects of the length and the cross-sectional shape of light metal fiber on the morphology of the LMA/light metal fibers in the polymer matrix were studied, as were electrical conductivities and mechanical properties of the composites. As the length and/or the cross-sectional aspect ratio of the fibers was increased, the domains of LMA/light metal fibers formed more networks so that the electrical conductivity increased, and specific surface area of the domains increased so that notched Izod impact strength was improved. Thus, the polymer/LMA/light metal fiber composites were fabricated without degrading processability even at 60 vol% loading and the electrical conductivities over 10 3 S/cm were achieved.

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Section: Max Torque During Compounding Ofmentioning

confidence: 61%

Novel method of polymer/low-melting-point metal alloy/light metal fiber composite fabrication

Park¹,

Shin²

2016

Express Polym. Lett.

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“…The material is made from unidirectional T300/QY8911 carbon fiber/epoxy preimpregnated tape by ECS0020.10 in 180°C.The ply-sequence of the plate is [(0/90/45/90/0) 2 ] S . The dimension of specimens is 89mm× 55mm×3mm [4]. Experiment tests are performed using a drop weight impact test facility.…”

Section: Methodsmentioning

confidence: 99%

Acoustic Emission Analysis of Composite Laminates under Low Velocity Impact

Chen

Tong

Zheng

et al. 2010

AMR

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One of the problems preventing the industrial application of composites is the lack of an efficient method to detect and discriminate among types of damage occurring during service. To solve this problem, low velocity impact experiments are carried out on T300/QY8911 composite laminates. And synchronously, the acoustic emission (AE) technique and impact monitoring systems were used to record the AE signals and the impact force. The damage evolution, damage modes and acoustic emission (AE) activity were easily detected and evaluated by the analysis of both AE waveform and impact load. In this way, the damage development process containing matrix cracking, delamination and fibers breakage is investigated. The energy release of damage are theoretically approximated and correlated with the AE energy. By the theory, the “high energy damage zone” is defined in the scatter diagrams of amplitude-frequency. It is easily to prove that the primary damage mode of “high energy damage zone” is delamination.

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“…Compared with solid particles, LMTM fillers would be more beneficial to the processing of polymer composites. Zhang et al [21] investigated the rheological properties of polymer/LMTM and found that the LMTM filler decreases the melt viscosity at temperatures above the melting point. Until now, most of the studies on Polymer/LMTM composites concentrated on enhancing the electrically conductive property [1][2][3][4][5].…”

Section: Y C Jia H He * P Yu J Chen X L Laimentioning

confidence: 99%

Synergistically improved thermal conductivity of polyamide-6 with low melting temperature metal and graphite

Jia¹,

He²,

Yu³

et al. 2016

Express Polym. Lett.

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Abstract. Low melting temperature metal (LMTM)-tin (Sn) was introduced into polyamide-6 (PA6) and PA6/graphite composites respectively to improve the thermal conductivity of PA6 by melt processing (extruding and injection molding). After introducing Sn, the thermal conductivity of PA6/Sn was nearly constant because of the serious agglomeration of Sn. However, when 20 wt% (5.4 vol%) of Sn was added into PA6 containing 50 wt% (33.3 vol%) of graphite, the thermal conductivity of the composite was dramatically increased to 5.364 versus 1.852 W·(m·K) -1 for the PA6/graphite composite, which suggests that the incorporation of graphite and Sn have a significant synergistic effect on the thermal conductivity improvement of PA6. What is more, the electrical conductivity of the composite increased nearly 8 orders of magnitudes after introducing both graphite and Sn. Characterization of microstructure and energy dispersive spectrum analysis (EDS) indicates that the dispersion of Sn in PA6/graphite/Sn was much more uniform than that of PA6/Sn composite. According to Differential Scanning Calorimetry measurement and EDS, the uniform dispersion of Sn in PA6/graphite/Sn and the high thermal conductivity of PA6/graphite/Sn are speculated to be related with the electron transfer between graphite and Sn, which makes Sn distribute evenly around the graphite layers.

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Untitled

Cited by 16 publications

References 8 publications

Novel method of polymer/low-melting-point metal alloy/light metal fiber composite fabrication

Novel method of polymer/low-melting-point metal alloy/light metal fiber composite fabrication

Acoustic Emission Analysis of Composite Laminates under Low Velocity Impact

Synergistically improved thermal conductivity of polyamide-6 with low melting temperature metal and graphite

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