Predicting non-Fickian moisture diffusion in EMCs for application in micro-electronic devices

Barink, M.; Mavinkurve, A.; Janssen, J.H.J.

doi:10.1016/j.microrel.2016.03.016

Cited by 19 publications

(10 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Of particular importance is the Langmuir model [32], which has been recently extended to the three-dimensional, anisotropic hindered diffusion model (HDM) [38,39]. The Langmuir-type absorption model and the HDM were reported to be very accurate in describing the non-Fickian absorption [6,33,40], and were successful in predicting this anomalous behavior in thermoset-based adhesives, composites and molding compounds [6,10,32,33,[40][41][42][43][44][45].…”

Section: Moisture Absorption Theorymentioning

confidence: 99%

“…Due to these enhanced properties and their low density, nanocomposites have been used in a wide variety of industries, including aerospace [1,2], automotive [2,3], and energy [4,5]. In particular, thermosets contain nanoscale fillers or additives at different concentrations to reduce cost or to enhance electrical [3,6] mechanical [7][8][9] and/or barrier [8,[10][11][12][13] properties. The type (i.e., nanofibers, nanotubes, and nano-glass spheres) and the amounts of nanofillers used usually determine the extent of property enhancement.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Moisture Absorption of Carbon/Epoxy Nanocomposites

Guloglu

Altan

2020

J. Compos. Sci.

View full text Add to dashboard Cite

Moisture absorption of composites with nanoscale carbon additives such as carbon nanotubes, carbon nanofibers, graphite nanoplatelets, and carbon black is investigated using thermogravimetric data and a non-Fickian hindered diffusion (Langmuir-type) model. The moisture absorption parameters are determined using this model for six different types of carbon/epoxy nanocomposites. The absorption behaviors obtained at different humidity levels and thermal environments are recovered by minimizing the error between the experimental data and model predictions, thus enabling the accurate determination of the moisture equilibrium level. The absorption behavior and the weight gain of all nanocomposites are shown to be accurately represented by this model over the entire absorption period. The presence of carbon nanomaterials is found to induce varying levels of non-Fickian behavior, governed by the nondimensional hindrance coefficient. This behavior is enhanced with the nanomaterial content and separate from the slight non-Fickian behavior of all neat epoxy samples. The molecular bonding during diffusion, as well as the interfacial moisture storage, could be among the reasons for non-Fickian behavior and should be included in the absorption models for accurate characterization of carbon/epoxy nanocomposites.

show abstract

Section: Moisture Absorption Theorymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Moisture Absorption of Carbon/Epoxy Nanocomposites

Guloglu

Altan

2020

J. Compos. Sci.

View full text Add to dashboard Cite

show abstract

“…Epoxy resin is widely employed in the insulation of electronic packaging due to its excellent heat resistance, outstanding manufacturability, and superior electrical insulation performance 1–4 . The development of miniaturized and high‐power density electronic devices necessitates higher requirements on epoxy resin insulating materials.…”

Section: Introductionmentioning

confidence: 99%

Improving the insulating performance of epoxy resin in humid environments byHTPDMSmodification

Gong

Zhao

Zhang

et al. 2021

J of Applied Polymer Sci

View full text Add to dashboard Cite

The rapid development of the electronic packaging industry imposes stringent requirements on epoxy resin insulation materials for lower water absorption and higher insulation properties. Here, hydroxy‐terminated polydimethylsiloxane (HTPDMS) was grafted on the molecular chain of the epoxy resin for enhanced waterproof and insulating properties of the epoxy resin. The HTPDMS‐modified epoxy resin specimens were prepared and subjected to water absorption and water absorption insulation performance tests. The experimental results indicated that the water absorption rate of the modified epoxy resin was reduced by 34.2%, resulting in a 25.2% reduction of the dielectric loss, an 11.6% increase of the breakdown strength, and a 98.3% increase of the volume resistivity. The satisfactory performance of the HTPDMS‐modified epoxy resin insulation material is attributed to the low surface energy and flexible SiO bond of the introduced HTPDMS. Simultaneously, the reduction of surface defects is also conducive to the epoxy resin insulation performance. Thus, HTPDMS‐modified epoxy resin insulation materials can maintain excellent insulation properties in humid environments, making them a promising application in the field of electronic packaging.

show abstract

“…Moreover, the Langmuir model which was proposed by Cater et al [ 20 ] considers the probability of free and bound water molecules. This model has been adopted by various researchers when characterizing the non-Fickian moisture absorption behavior of FM300 epoxy adhesive [ 21 ], DGEBA-based epoxy adhesives [ 22 ], Fiberite ANC3K/948A1 graphite/epoxy composites [ 23 ], EC 2216 epoxy adhesive [ 24 ], Hysol EA9360 adhesive and T-300 plain weave reinforced epoxy composites [ 25 ], and biphenyl epoxy molding compounds [ 26 ]. The parallel Fickian model is another common model employed for non-Fickian behavior, where the moisture absorption is described by the summation of two Fickian models.…”

Section: Introductionmentioning

confidence: 99%

“…The parallel Fickian model is another common model employed for non-Fickian behavior, where the moisture absorption is described by the summation of two Fickian models. This model has been employed in a rubber toughened epoxy adhesive (Araldite 2007) [ 27 ] and epoxy molding compounds (EMCs) [ 26 , 28 , 29 ]. Nevertheless, the abovementioned non-Fickian models are limited to the specific experimental conditions designed by the authors.…”

Section: Introductionmentioning

confidence: 99%

An Extended Thickness-Dependent Moisture Absorption Model for Unidirectional Carbon/Epoxy Composites

et al. 2021

View full text Add to dashboard Cite

Moisture absorption tests for materials that exhibit non-Fickian behavior generally require a relatively long period to reach saturation. Therefore, it would be beneficial to establish a relationship between the moisture content and the thickness to minimize the experimental time and cost. This research characterizes the moisture absorption behavior of AS4/8552 carbon/epoxy composites. Specimens were prepared at 4, 8, and 16 plies and immersed in distilled water at 60 °C. The relationship between the non-Fickian parameters (Fickian to non-Fickian maximum moisture content ratio ϕ, non-Fickian diffusivity per square thickness α, and non-Fickian initiation time to) and thickness was characterized using a thickness-dependent model. A comparison with other materials revealed that all three non-Fickian parameters are able to be fitted using a power law. Nevertheless, the upper boundary for the applicability of this model was not determined in this study. The Weibull distribution plots indicate that the probability of non-Fickian moisture absorption is influenced by ϕ and α at approximately 62% within a normalized thickness range of 2–3. In regards to to, it is 82% at a normalized thickness of 6. Therefore, the Weibull distribution is proposed for the assessment of non-Fickian moisture absorption based on the material’s thickness.

show abstract

Predicting non-Fickian moisture diffusion in EMCs for application in micro-electronic devices

Cited by 19 publications

References 8 publications

Moisture Absorption of Carbon/Epoxy Nanocomposites

Moisture Absorption of Carbon/Epoxy Nanocomposites

Improving the insulating performance of epoxy resin in humid environments byHTPDMSmodification

An Extended Thickness-Dependent Moisture Absorption Model for Unidirectional Carbon/Epoxy Composites

Contact Info

Product

Resources

About