Using thickness-shear mode quartz resonator for characterizing the viscoelastic properties of PDMS during cross-linking, from the liquid to the solid state and at different temperatures

Monta, Amaury Dalla; Razan, Florence; Cam, Jean‐Benoît Le; Chagnon, Grégory

doi:10.1016/j.sna.2018.07.003

Cited by 14 publications

(3 citation statements)

References 20 publications

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“…One of the most promising elastomers is the polydimethylsiloxane (PDMS). It is a highly used silicon-based polymer with good chemical and thermal stability [ 4 , 15 , 16 , 17 ], biocompatibility [ 18 , 19 , 20 ], corrosion resistance [ 21 , 22 ], flexibility [ 23 , 24 , 25 ], repeatability [ 26 ], a low cost [ 27 ], ease of use, chemically inertia, hyperplastic characteristics, and gas permeability [ 3 , 28 ]. Thus, PDMS has been used in several fields and systems (see Figure 1 ), such as microfluidics and nanofluidics [ 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 ], biomodels [ 38 , 39 ], organ-on-a-chip platforms [ 40 , 41 ], blood analogues [ 42 , 43 , 44 , 45 , 46 ], electronic components [ 47 ], membranes for filtering and pervaporation [ 48 , 49 , 50 ], sensors [ 51 , 52 , 53 ], optical and thermal devices [ 54 , 55 , 56 ], coatings [ 57 , 58 , 59 ], etc.…”

Section: Introductionmentioning

confidence: 99%

Polydimethylsiloxane Composites Characterization and Its Applications: A Review

et al. 2021

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Polydimethylsiloxane (PDMS) is one of the most promising elastomers due its remarkable proprieties such as good thermal stability, biocompatibility, corrosion resistance, flexibility, low cost, ease of use, chemically inertia, hyperplastic characteristics, and gas permeability. Thus, it can be used in areas such as microfluidic systems, biomedical devices, electronic components, membranes for filtering and pervaporation, sensors, and coatings. Although pure PDMS has low mechanical properties, such as low modulus of elasticity and strength, it can be improved by mixing the PDMS with other polymers and by adding particles or reinforcements. Fiber-reinforced PDMS has proved to be a good alternative to manufacturing flexible displays, batteries, wearable devices, tactile sensors, and energy harvesting systems. PDMS and particulates are often used in the separation of liquids from wastewater by means of porosity followed by hydrophobicity. Waxes such as beeswax and paraffin have proved to be materials capable of improving properties such as the hydrophobic, corrosion-resistant, thermal, and optical properties of PDMS. Finally, when blended with polymers such as poly (vinyl chloride-co-vinyl acetate), PDMS becomes a highly efficient alternative for membrane separation applications. However, to the best of our knowledge there are few works dedicated to the review and comparison of different PDMS composites. Hence, this review will be focused on PDMS composites, their respective applications, and properties. Generally, the combination of elastomer with fibers, particles, waxes, polymers, and others it will be discussed, with the aim of producing a review that demonstrates the wide applications of this material and how tailored characteristics can be reached for custom applications.

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Section: Introductionmentioning

confidence: 99%

Polydimethylsiloxane Composites Characterization and Its Applications: A Review

et al. 2021

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“…This wide range of applications is justified by the desirable properties presented by this polymer, PDMS, a silicone based on organic polymers that is non-toxic, non-flammable, and known as a material for which processing is simple with good repeatability and low cost. It is also an optically transparent material [11,25], biocompatible [26][27][28], highly flexible [29,30], waterproof [31], viscoelastic, and chemically and thermally stable [32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Composite Material of PDMS with Interchangeable Transmittance: Study of Optical, Mechanical Properties and Wettability

et al. 2021

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Polydimethylsiloxane (PDMS) is a polymer that has attracted the attention of researchers due to its unique properties such as transparency, biocompatibility, high flexibility, and physical and chemical stability. In addition, PDMS modification and combination with other materials can expand its range of applications. For instance, the ability to perform superhydrophobic coating allows for the manufacture of lenses. However, many of these processes are complex and expensive. One of the most promising modifications, which consists of the development of an interchangeable coating, capable of changing its optical characteristics according to some stimuli, has been underexplored. Thus, we report an experimental study of the mechanical and optical properties and wettability of pure PDMS and of two PDMS composites with the addition of 1% paraffin or beeswax using a gravity casting process. The composites’ tensile strength and hardness were lower when compared with pure PDMS. However, the contact angle was increased, reaching the highest values when using the paraffin additive. Additionally, these composites have shown interesting results for the spectrophotometry tests, i.e., the material changed its optical characteristics when heated, going from opaque at room temperature to transparent, with transmittance around 75%, at 70 °C. As a result, these materials have great potential for use in smart devices, such as sensors, due to its ability to change its transparency at high temperatures.

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“…In viscoelastic materials, the rapid-deforming response is observed in the material with elasticdominant behaviour. Therefore, tanδ, representing the ratio of G to G , is employed to anticipate the dominant behaviour of PDMS and PEDOT:PSS-mixed PDMS films [10,11]. The low value of tanδ indicates the elastic-dominant material, whereas the high value of tanδ refers to the viscous-dominant material.…”

Section: Viscoelastic Mechanical Properties Of Pdms and Pedot:pss MIXmentioning

confidence: 99%

Enhancement of sensing characteristics of Polydimethylsiloxane‐based capacitive force sensor by introducing conductive polymer to dielectric layer

Siangkhio

Rangkasikorn

Tammarugwattana

et al. 2020

Electronics Letters

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A capacitive force sensor is one of the electronics components used in several electronic devices and applications. An improvement of sensing characteristics of the sensor, for example sensitivity and response time, becomes an interesting research topic. The alternative approach to enhance the sensitivity and response time of polydimethylsiloxane‐based capacitive force sensors is proposed by introducing poly(3,4‐ethylenedioxythiophene) polystyrene sulphonate, a conductive polymer, into polydimethylsiloxane active layer. Two sensors using different active layers, (i) polydimethylsiloxane (conventional sensor) and (ii) poly(3,4‐ethylenedioxythiophene) polystyrene sulphonate mixed polydimethylsiloxane (modified sensor), were fabricated and characterised to reveal the sensing enhancement. Interestingly, the modified sensor shows the significant increase in the sensitivity from 0.7 to 1.14 kPa–1 (+62.86%) and the shortening response time from 1.55 to 0.43 s (−72.26%) with respect to the conventional sensor. In addition, the deterioration in elastic behaviour and the faster charge–discharge behaviour observed from the poly(3,4‐ethylenedioxythiophene) polystyrene sulphonate mixed polydimethylsiloxane film indicate the better deformation and charge transport than that from polydimethylsiloxane film. Therefore, it can be concluded that the conductive poly(3,4‐ethylenedioxythiophene) polystyrene sulfonate additive plays the role of mechanical and electrical modification of the polydimethylsiloxane active layer leading to the enhancement in sensitivity and response time of the polydimethylsiloxane‐based capacitive force sensor.

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Using thickness-shear mode quartz resonator for characterizing the viscoelastic properties of PDMS during cross-linking, from the liquid to the solid state and at different temperatures

Cited by 14 publications

References 20 publications

Polydimethylsiloxane Composites Characterization and Its Applications: A Review

Polydimethylsiloxane Composites Characterization and Its Applications: A Review

Composite Material of PDMS with Interchangeable Transmittance: Study of Optical, Mechanical Properties and Wettability

Enhancement of sensing characteristics of Polydimethylsiloxane‐based capacitive force sensor by introducing conductive polymer to dielectric layer

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