Thermal and mechanical properties of 3D printed boron nitride – ABS composites

To improve mechanical and thermal properties of a hexagonal boron nitride platelet filled polymer composites, maleic anhydride was studied as a coupling agent and compatibilizer. Injection molded blends of acrylonitrile butadiene styrene (ABS), high-density polyethylene (HDPE), and maleic anhydride with boron nitride filler were tested for thermal conductivity and impact strength to determine whether adding maleic anhydride improved interfacial interactions between matrix and filler and between the polymers. Adding both HDPE and maleic anhydride to ABS as the matrix of the composite resulted in a 40% improvement in impact strength without a decrease in thermal conductivity when compared to an ABS matrix. The best combination of thermal conductivity and impact strength was using pure HDPE as the matrix material. The effective medium theory model is used to help explain how strong filler alignment helps achieve high thermal conductivity, greater than 5 W/m K for 60 wt % boron nitride.

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“…Impact strength of HDPE with increasing proportions of BN and previous results using ABS . [Color figure can be viewed at wileyonlinelibrary.com]…”

Section: Resultsmentioning

confidence: 83%

The impact of polymer matrix blends on thermal and mechanical properties of boron nitride composites

Zhou

Smith

Berenguer

et al. 2019

J of Applied Polymer Sci

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“…Using both melt mixing on a twin‐screw compounder, BN/ABS composites were prepared by Tyler J. Quill and coworkers. [ 172 ] The composites were fabricated using both injection molding techniques and fused deposition modeling (FDM) 3D printing method. It was found that compared to pure ABS, the two processed specimens showed greater flexural moduli.…”

Section: Polymer/boron Nitride Nanocomposites: Classificationsmentioning

confidence: 99%

An overview of boron nitride based polymer nanocomposites

Joy

George

Haritha

et al. 2020

Journal of Polymer Science

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Recently, boron nitride (BN) based materials have received significant attention in both academic and industrial sectors due to its interesting properties like large energy band gap, good resistance to oxidation, excellent thermal conductivity, thermal stability, chemical inertness, significant mechanical property and widespread applications. This review article deals with the preparation and properties of boron nitride and its nanocomposites with various polymers. Diverse polymers have been explored for the preparation of boron nitride filled polymer nanocomposites by adopting different mixing methods. Properties of the resulting polymer nanocomposites mainly depend up on filler size and dispersion, mixing conditions and type of interaction between polymer matrix and the filler. Herein, the structure, preparation and properties of various boron nitride based polymer nanocomposites are reviewed in detail along with a brief overview of different classes of BN nanomaterials.

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“…Thermal properties of 3D printable materials have also been altered to suit a particular 3D printing application. Boron nitride was added to ABS material to increase the thermal conductivity by about 3-4 times with a boron nitride weight ratio of 40% [14]. The goal of this composite material was to increase thermal conductivity to be able to 3D print a heat dispersive device.…”

Section: Introductionmentioning

confidence: 99%

Development and Mechanical Properties of Basalt Fiber-Reinforced Acrylonitrile Butadiene Styrene for In-Space Manufacturing Applications

et al. 2019

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A new basalt fiber reinforced acrylonitrile butadiene styrene (ABS) filament has been developed for fused filament fabrication (FFF, 3D printing) to be used in Mars habitat construction. Building habitats on Mars will be expensive, especially if all material must be shipped from earth. However, if some materials can be used from Mars, costs will dramatically decrease. Basalt is easily mined from the surface of Mars. This study details the production process of the material, experimental results from mechanical testing, and preliminary X-ray shielding characteristics. The addition of chopped 3 mm basalt fibers to standard FFF material, ABS, increased strength and stiffness of the composite material. By adding 25% (by weight) basalt fiber to ABS, tensile strength improved nearly 40% by increasing from 36.55 MPa to 50.58 MPa, while Modulus of Elasticity increased about 120% from 2.15 GPa to 4.79 GPa. Flexural strength increased by about 20% from 56.94 MPa to 68.51 MPa, while Flexural Modulus increased by about 70% from 1.81 GPa to 3.05 GPa. While compression results did not see much strength improvements, the addition of fibers also did not decrease compressive strength. This is important when considering that basalt fibers provide radiation shielding and the cost of adding basalt fibers to construction materials on Mars will be negligible compared to the cost of shipping other materials from earth. In preliminary digital radiography testing, it was shown that 77% of X-rays were shielded with 25% basalt fiber added (as compared to neat ABS). In small-scale 3D printing applications, the 25% fiber ratio seems to be the highest ratio that provides reliable FFF printing.

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Thermal and mechanical properties of 3D printed boron nitride – ABS composites

Cited by 79 publications

References 35 publications

The impact of polymer matrix blends on thermal and mechanical properties of boron nitride composites

The impact of polymer matrix blends on thermal and mechanical properties of boron nitride composites

An overview of boron nitride based polymer nanocomposites

Development and Mechanical Properties of Basalt Fiber-Reinforced Acrylonitrile Butadiene Styrene for In-Space Manufacturing Applications

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