3D printing-enabled self-assembling β-nucleating agent alignment: Structural evolution and mechanical performances

Han, Rui; Yang, Qinjie; Wang, Zhongzui; Cao, Dan; Li, Guangzhao; Zheng, Lang; Bi-you, Peng; Gao, Xiaoyan; Chen, Gang

doi:10.1016/j.polymer.2022.124736

Cited by 7 publications

(10 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The fuzzy-phase interface and craze-shear band of β-crystals can absorb a great deal of energy. The 3Dprinted honeycomb materials also confirm this view [184]. The compound with the highest β-crystal count has the strongest impact.…”

Section: Toughening Mechanism Of Compositessupporting

confidence: 61%

β-Nucleated Polypropylene: Preparation, Nucleating Efficiency, Composite, and Future Prospects

Xiulin

et al. 2023

Polymers

View full text Add to dashboard Cite

The β-crystals of polypropylene have a metastable crystal form. The formation of β-crystals can improve the toughness and heat resistance of a material. The introduction of a β-nucleating agent, over many other methods, is undoubtedly the most reliable method through which to obtain β-PP. Furthermore, in this study, certain newly developed β-nucleating agents and their compounds in recent years are listed in detail, including the less-mentioned polymer β-nucleating agents and their nucleation characteristics. In addition, the various influencing factors of β-nucleation efficiency, including the polymer matrix and processing conditions, are analyzed in detail and the corresponding improvement measures are summarized. Finally, the composites and synergistic toughening effects are discussed, and three potential future research directions are speculated upon based on previous research.

show abstract

Section: Toughening Mechanism Of Compositessupporting

confidence: 61%

β-Nucleated Polypropylene: Preparation, Nucleating Efficiency, Composite, and Future Prospects

Xiulin

et al. 2023

Polymers

View full text Add to dashboard Cite

show abstract

“…Based on layer-by-layer manufacturing principles, fused deposition modeling (FDM) can create advanced geometries and has been started to be used more frequently for the fabrication of thermally conductive composites. It has been well accepted that FDM involves strong flow fields such as shear fields and tensile fields, which helps to achieve precise control of filler orientation and distribution state from micro to macro levels [ 29 , 30 , 31 , 32 ]. For example, Jia et al used FDM to fabricate graphite/polyamide six composites, achieving an orientation of flake graphite along the through-plane direction by regulating the building direction [ 33 ].…”

Section: Introductionmentioning

confidence: 99%

Fused Deposition Modeling of Isotactic Polypropylene/Graphene Nanoplatelets Composites: Achieving Enhanced Thermal Conductivity through Filler Orientation

Wang,

Yang,

Zheng

et al. 2024

Polymers

Self Cite

View full text Add to dashboard Cite

High-performance thermally conductive composites are increasingly vital due to the accelerated advancements in communication and electronics, driving the demand for efficient thermal management in electronic packaging, light-emitting diodes (LEDs), and energy storage applications. Controlling the orderly arrangement of fillers within a polymer matrix is acknowledged as an essential strategy for developing thermal conductive composites. In this study, isotactic polypropylene/GNP (iPP/GNP) composite filament tailored for fused deposition modeling (FDM) was achieved by combining ball milling with melt extrusion processing. The rheological properties of the composites were thoroughly studied. The shear field and pressure field distributions during the FDM extrusion process were simulated and examined using Polyflow, focusing on the influence of the 3D printing processing flow field on the orientation of GNP within the iPP matrix. Exploiting the unique capabilities of FDM and through strategic printing path design, thermally conductive composites with GNPs oriented in the through-plane direction were 3D printed. At a GNP content of 5 wt%, the as-printed sample demonstrated a thermal conductivity of 0.64 W/m · K, which was 1.5 times the in-plane thermal conductivity for 0.42 W/m · K and triple pure iPP for 0.22 W/m · K. Effective medium theory (EMT) model fitting results indicated a significantly reduced interface thermal resistance in the through-plane direction compared to the in-plane direction. This work shed brilliant light on developing PP-based thermal conductive composites with arbitrarily-customized structures.

show abstract

“…Unlike traditional manufacturing techniques, AM methods are more useful due to advantages such as reducing costs, enabling rapid prototyping, and checking the suitability of parts for fabrication before mass production. [1][2][3][4][5][6] Although there are many various techniques including stereolithography, polyjet, laminated object manufacturing, selective laser sintering, laminated engineered net shaping, and electron beam melting in AM technology, fused deposition modeling (FDM) is the most used. The FDM method has become indispensable for end users in recent years, as it enables economical parts to be manufactured easily with cheap machinery and cheap materials and does not require additional processes such as resin curing or chemical finishing processes as in other methods.…”

Section: Introductionmentioning

confidence: 99%

“…Since single and unique parts can be printed in a layer‐by‐layer fashion from 3D architectures created in CAD software with low cost and material consumption, without post‐manufacturing operations and molds, in a short time, the usage areas of the AM method have started to expand with an increasing momentum in recent years, parallel to the researchers' interest in developing the method. Unlike traditional manufacturing techniques, AM methods are more useful due to advantages such as reducing costs, enabling rapid prototyping, and checking the suitability of parts for fabrication before mass production 1–6 …”

Section: Introductionmentioning

confidence: 99%

Comprehensive characterization of 3D‐printed bamboo/poly(lactic acid) bio composites

Yilmaz

Gül

Eyri

et al. 2023

Polymer Engineering & Sci

View full text Add to dashboard Cite

In recent years, the use of additive manufacturing technologies especially fused deposition modeling (FDM), 3D printing, have been raised popularity. Poly(lactic acid) (PLA) is one of the most widely used materials in FDM because it is suitable for biodegradation due to environmental problems. Therefore, to improve the properties of PLA and extend its lifespan, the material to be added to its structure must be of natural origin. In this study, mechanical, thermal, thermo‐mechanical, tribological, and morphological properties of composite materials manufactured using bamboo filled PLA filament by FDM method were investigated. The thermal properties of the samples were investigated by differential scanning calorimeter analysis, thermomechanical properties by dynamic mechanical thermal analysis, mechanical properties by tensile and three‐point bending test, and surface hardness by Shore D test. Since there are few studies in the literature examining the effects of 3D printing parameters on tribological properties, in this study, various layer thicknesses, top/bottom pattern, specimen face, and build plate surface type on the wear behavior were examined. Worn surfaces and fractured surfaces were investigated by SEM.

show abstract

3D printing-enabled self-assembling β-nucleating agent alignment: Structural evolution and mechanical performances

Cited by 7 publications

References 41 publications

β-Nucleated Polypropylene: Preparation, Nucleating Efficiency, Composite, and Future Prospects

β-Nucleated Polypropylene: Preparation, Nucleating Efficiency, Composite, and Future Prospects

Fused Deposition Modeling of Isotactic Polypropylene/Graphene Nanoplatelets Composites: Achieving Enhanced Thermal Conductivity through Filler Orientation

Comprehensive characterization of 3D‐printed bamboo/poly(lactic acid) bio composites

Contact Info

Product

Resources

About