Preparation of polypropylene-based thermally conductive composites via multiple injection compression molding method

Li, Chenglin; Du, Qingyuan; Ru, Yue; Zhang, Hao; An, Yi; Liu, Jiaming; Wu, Dezhen; Gao, Dali; Sun, Jingyao

doi:10.1016/j.coco.2022.101331

Cited by 16 publications

(9 citation statements)

References 34 publications

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“…The filling density of 3D printed composites affected not only the mechanical properties but also the specific surface area and texture roughness, which is of great help for the thermal conduction of SCF/PP composite samples. , The 3D printed disc was designed as a structure with a bottom and no cover, which is beneficial for absorbing heat and dissipating heat from the hot platform, as shown in Figures and A. During the sample endothermic process, the temperature changes of PPCF50 samples with different filling densities (20–100%) were 50.5, 38.6, 38.4, 28.5, and 14.8 °C, respectively.…”

Section: Resultsmentioning

confidence: 99%

Mechanical, Thermal, and Electrical Properties on 3D Printed Short Carbon Fiber Reinforced Polypropylene Composites

Zhan,

Su,

Tuo

et al. 2024

ACS Appl. Polym. Mater.

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Carbon fiber-reinforced polymer-matrix composites have been an important research topic due to their high performance and versatility. In this study, we investigated the mechanical, thermal, and electrical properties of short carbon fiberreinforced polypropylene (SCF/PP) composites prepared using the fused deposition modeling (FDM)-3D printing technique. PP was selected as the matrix for 3D printed composites to overcome the processing problems caused by the high content of SCFs. The addition of SCFs also effectively mitigated the warping problem during the PP cooling process. Compared to pure PP, the tensile strength increased by up to 35%, and the bending strength exhibited an approximate 40% enhancement. With increasing SCF content, the thermal conductivity exhibited a linear growth, reaching 0.266 W/(m • K) at 70 °C for the PPCF50 sample, simultaneously demonstrating excellent electrical conductivity. The material also displayed significant potential in electromagnetic protection applications, achieving a maximum shielding effectiveness of 29.8 dB. The texture direction and filling density in 3D printing settings have also been proven to play important roles in adjusting the performance of composite samples. The attempt of this study is beneficial for promoting the widespread application of polyolefin polymers as a consumable matrix material for 3D printed SCF-reinforced composite products.

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Section: Resultsmentioning

confidence: 99%

Mechanical, Thermal, and Electrical Properties on 3D Printed Short Carbon Fiber Reinforced Polypropylene Composites

Zhan,

Su,

Tuo

et al. 2024

ACS Appl. Polym. Mater.

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“…[18][19][20] However, the main problem faced by thermally conductive polymer composites is the difficulty of complete separation between matrix and fillers, and the recycling of matrix materials and filler skeleton after separation is also hard. 5,[21][22][23] Because most of the matrix materials are nondegradable polymers, they can survive in the environment for decades or even centuries after their functional life. [24][25][26] These nondegradable polymer particles will be widely distributed in animals, water, soil, and other natural resources, and even found in infants' bodies.…”

Section: Introductionmentioning

confidence: 99%

Recyclable thermally conductive poly(butylene adipate‐co‐terephthalate) composites prepared via forced infiltration

Han

et al. 2023

SusMat

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With the rapid development of electronic equipment and communication technology, the demand for polymer composites with high thermal conductivity and mechanical properties has increased significantly. However, its nondegradable polymer matrix will inevitably bring more and more serious environmental pollution. Therefore, it is urgent to develop biodegradable thermally conductive polymer composites. In this work, biodegradable poly(butylene adipate-coterephthalate) (PBAT) is used as the matrix material, and vacuum-assisted filtration technology is employed to prepare carbon nanotube (CNT) and cellulose nanocrystal (CNC) networks with high thermal conductivity. Then CNT-CNC/PBAT composites with high thermal conductivity and excellent mechanical properties are prepared by the ultrasonic-assisted forced infiltration method. Both experiment and simulation methods are used to systematically investigate the thermally conductive and dissipation performances of the CNT-CNC/PBAT composites. Above all, a simple alcoholysis reaction is applied to realize the separation of the PBAT matrix and functional fillers without destroying the conductive network skeleton, which makes it possible for the recycling of thermally conductive polymer composites. K E Y W O R D Sforced infiltration, poly(butylene adipate-co-terephthalate) matrix, recyclable thermal interface material Chenglin Li, Yi Han, and Qingyuan Du contribute equally.

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“…This IBM is a composite material for electrically generated thermal bonding, so it needs to have excellent electrical and thermal conductivity. Highly electrically conductive fillers include carbon fillers (graphene, [13][14][15][16] carbon fiber [17,18] and carbon nanotubes (CNTs) [19,20] etc. ), metal fillers (Al, [21] Ag [22] and Cu [23] etc.).…”

Section: Introductionmentioning

confidence: 99%

Preparation and Application of Flexible Ethylene Vinyl Acetate Adhesive Composites by Ultrasonic‐Assisted Forced Infiltration

Liu

et al. 2023

Adv Eng Mater

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Herein, carbon nanotubes (CNTs)–cellulose nanocrystals (CNCs)/ethylene‐vinyl acetate (EVA) composite are prepared with excellent bonding properties, electrical conductivity, and thermal conductivity using an ultrasonic‐assisted forced infiltration (UAFI) method. The CNTs–CNCs (10:1)/EVA composite had the highest shear (82.9 N) and strip (12.2 N) forces at the interface when bonding leather to fabric as an interface bonding material (IBM). Different mass ratios of CNTs to CNCs in the composites lead to different electrical and thermal conductivity properties. When the mass ratio of CNTs to CNCs is 10:1, the CNTs–CNCs(10:1)/EVA composites reach an electrical and thermal conductivity of 158.37 S m−1 and 6.351 W (m·K)−1, respectively. In addition, the CNTs–CNCs(10:1)/EVA composite shows excellent thermal stability, mechanical properties, thermal performance, and electromagnetic shielding. The prepared EVA composite has a broad application prospect in IBM.

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Preparation of polypropylene-based thermally conductive composites via multiple injection compression molding method

Cited by 16 publications

References 34 publications

Mechanical, Thermal, and Electrical Properties on 3D Printed Short Carbon Fiber Reinforced Polypropylene Composites

Mechanical, Thermal, and Electrical Properties on 3D Printed Short Carbon Fiber Reinforced Polypropylene Composites

Recyclable thermally conductive poly(butylene adipate‐co‐terephthalate) composites prepared via forced infiltration

Preparation and Application of Flexible Ethylene Vinyl Acetate Adhesive Composites by Ultrasonic‐Assisted Forced Infiltration

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