The effect of nanoparticle fillers on glass fiber/poly‐ether‐ether‐ketone prepreg laser absorbance, thermal conductivity and interlayer performance

Abstract

Aiming at the use of glass fiber reinforced poly‐ether‐ether‐ketone (GF/PEEK) with low laser absorbance in laser assisted tape winding/placement (LATW/LATP), a method for dyeing GF/PEEK prepreg with nanoparticle fillers (NFs) is presented. First, the effects of carbon black (CB) and graphite (G) NFs on composites laser absorbance and reflection pattern were quantified, and the complex refractive index model was derived. Next, the effects of NFs on composites transverse thermal conductivity were tested, and the accuracy of four thermal conductivity prediction models were compared. Finally, the effects of NFs on composites interlayer performance were studied. The optical test results showed that NFs could improve laser absorbance while not changing reflection pattern, and the increase rate of absorbance for CB was higher than for G. As calculated by complex refractive index model, GF/PEEK with 1‐layer thickness could achieve complete laser absorption by addition of either 2.74%CB or 3.78%G. The thermal conductivity test results showed that NFs could improve composites transverse thermal conductivity. The increase rate of thermal conductivity for G was higher than for CB. Among the four prediction model, the Lewis‐Nielsen model had correct prediction regularity and was within 10% predict deviation. Based on this model, the transverse thermal conductivity of GF/PEEK/2.74%CB was 0.557 W/m K, and of GF/PEEK/3.78%G was 0.592 W/m K. The mechanical test results showed that the CB loading ≤4% had little effect on interlayer performance, while the G decreased interlayer performance. Consequently, adding CB at a low loading is a better way to realize GF/PEEK application in LATW/LATP.

Dimension effect on thermal conductivity of hexagonal boron nitride/titanium dioxide reinforced hybrid PEEK composites developed with a scalable compounding approach

“…For instance, Shtein et al, manufactured graphene nanoplatelet/epoxy composites by utilizing a centrifugal mixing approach and obtained a thermal conductivity value of 12.4 W/(m.K), an enhancement of 6800% at a filler loading of 20 vol% when compared to neat polymer 7 . Similarly, Li et al, demonstrated that the addition of graphite at a loading of 7 wt% in PEEK/glass fiber composites leads to an increment of 11.8% in through‐plane thermal conductivity 5 . In addition to graphene and its species, other inorganic fillers, including alumina, 8 aluminum nitride, 9 and boron nitride, 4,10–12 have also been reported for developing thermally conductive polymer composites.…”

“…To address this bottleneck of low κ, traditionally, metallic, ceramic-based inorganic fillers, or carbon-based fillers with a high intrinsic thermal conductivity and high aspect ratio are incorporated in the host polymer to enhance its heat dissipation properties. [3][4][5][6] For instance, Shtein et al, manufactured graphene nanoplatelet/epoxy composites by utilizing a centrifugal mixing approach and obtained a thermal conductivity value of 12.4 W/(m.K), an enhancement of 6800% at a filler loading of 20 vol% when compared to neat polymer. 7 Similarly, Li et al, demonstrated that the addition of graphite at a loading of 7 wt% in PEEK/glass fiber composites leads to an increment of 11.8% in through-plane thermal conductivity.…”

“…7 Similarly, Li et al, demonstrated that the addition of graphite at a loading of 7 wt% in PEEK/glass fiber composites leads to an increment of 11.8% in through-plane thermal conductivity. 5 In addition to graphene and its species, other inorganic fillers, including alumina, 8 aluminum nitride, 9 and boron nitride, 4,[10][11][12] have also been reported for developing thermally conductive polymer composites.…”

Theoptical‐thermalmodeling of carbon black filled glass fiber reinforced poly‐ether‐ether‐ketone in laser assisted tape winding

“…C p , ρ , and k ∥ are calculated by mixture rule, as shown in (Equation , , ), where Φ is the volume fraction. The relevant measurements and calculations of all data were performed in previous work of 40 …”

Development of a Quartz-Based Photo-Mobile Polymer Film for Controlled Motion Triggered by Light or Heat

“…The field of composite materials research is extensive and encompasses several relevant applications in science and technology [1][2][3][4][5][6][7]. As a specific type of composite material, photoresponsive polymers have the ability to change physical, chemical, or optical properties when exposed to light [8,9].…”