Synthesis of boron nitride nanotubes from boron oxide by ball milling and annealing process

This work aimed to investigate the effects of boron nitride nanotubes (BNNTs) on the mechanical and thermal properties of BNNT-polycaprolactone (PCL) nanocomposites. BNNTs were synthesized via co-precipitation and annealing process by using amorphous boron powder as a precursor. PCL-BNNT nanocomposites were prepared by using sonication and thermal curing. Their morphology, thermal and tensile properties were characterized. Morphological observation revealed that BNNTs were arbitrarily and evenly dispersed within the PCL which indicated a good dispersion of the nanotubes in polymer matrix. Both the thermal stability and mechanical properties of neat PCL were enhanced with the addition of BNNTs to polymer matrix, in particular the tensile strength of PLC was increased by 101% with the addition of 5 wt% nanofillers.

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Boron Nitride Nanotubes and Nanoribbons Produced by Ball Milling Method

Nanotubes and Nanosheets ◽

10.1201/b18073-6 ◽

2015 ◽

pp. 52-77

Keyword(s):

Boron Nitride ◽

Ball Milling ◽

Boron Nitride Nanotubes ◽

Milling Method

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Synthesis of boron nitride nanotubes at low temperatures using reactive ball milling

Chemical Physics Letters ◽

10.1016/s0009-2614(98)01252-4 ◽

1999 ◽

Vol 299 (3-4) ◽

pp. 260-264 ◽

Cited By ~ 207

Author(s):

Y. Chen ◽

J. Fitz Gerald ◽

J.S. Williams ◽

S. Bulcock

Keyword(s):

Boron Nitride ◽

Ball Milling ◽

Low Temperatures ◽

Boron Nitride Nanotubes

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Synthesis and formation mechanism of BN nanotubes catalyzed by Mg through ball milling and annealing process

E3S Web of Conferences ◽

10.1051/e3sconf/202126003027 ◽

2021 ◽

Vol 260 ◽

pp. 03027

Author(s):

Yanjiao Li ◽

Jianfeng Guo ◽

Xinfeng Wang ◽

Han Wang ◽

Xuan He

Keyword(s):

Boron Nitride ◽

Ball Milling ◽

High Purity ◽

Large Scale ◽

Stable Process ◽

Good Method ◽

Boron Nitride Nanotubes ◽

High Yield ◽

Uniform Size ◽

Bn Nanotubes

In order to improve the yield of BN nanotubes prepared by ball milling annealing method, a small amount of magnesium was used as catalyst to synthesized boron nitride nanotubes. The results showed that boron nitride nanotubes with high yield, high purity and uniform size were synthesized. The morphology of the synthesized BNNTs is bamboo-like and cylinder-shaped. The diameter of them is about 50 to 150 nm and most of them are 100nm. The length of them is dozens of microns. The existence of end particles indicates that the growth mechanism of BNNTs can be attributed to a gas-liquid-solid growth model. The magnesium catalyzed preparation of boron nitride nanotubes has stable process, high yield and high purity, which is expected to be a good method for large-scale preparation of boron nitride nanotubes.

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