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Thermally Conductive Poly(lactic acid) Composites with Superior Electromagnetic Shielding Performances via 3D Printing Technology
Ist Teil von
Chinese journal of polymer science, 2022-03, Vol.40 (3), p.248-255
Ort / Verlag
Singapore: Springer Singapore
Erscheinungsjahr
2022
Link zum Volltext
Quelle
SpringerLink (Online service)
Beschreibungen/Notizen
This work proposes a facile fabrication strategy for thermally conductive graphite nanosheets/poly(lactic acid) sheets with ordered GNPs (o-GNPs/PLA)
via
fused deposition modeling (FDM) 3D printing technology. Further combinations of o-GNPs/PLA with Ti
3
C
2
T
x
films prepared by vacuum-assisted filtration were carried out by “layer-by-layer stacking-hot pressing” to be the thermally conductive Ti
3
C
2
T
x
/(o-GNPs/PLA) composites with superior electromagnetic interference shielding effectiveness (EMI SE). When the content of GNPs was 18.60 wt% and 4 layers of Ti
3
C
2
T
x
(6.98 wt%) films were embedded, the in-plane thermal conductivity coefficient (
λ
||
) and EMI SE (EMI SE
||
) values of the thermally conductive Ti
3
C
2
T
x
/(o-GNPs/PLA) composites significantly increased to 3.44 W·m
–1
·K
–1
and 65 dB (3.00 mm), increased by 1223.1% and 2066.7%, respectively, compared with
λ
||
(0.26 W·m
–1
·K
–1
) and EMI SE
||
(3 dB) of neat PLA matrix. This work offers a novel and easily route for designing and manufacturing highly thermally conductive polymer composites with superior EMI SE for broader application.