Anticorrosive properties of PDMS-Silica coatings: effect of methyl, phenyl and amino groups

Salazar-Hernández, Carmen; Salazar-Hernández, Mercedes; Carrera-Cerritos, R.; Mendoza-Miranda, Juan Manuel; Elorza-Rodríguez, Enrique; Miranda-Avilés, Raúl; Mocada-Sánchez, Cristina Daniela

doi:10.1016/j.porgcoat.2019.105220

Cited by 26 publications

(15 citation statements)

References 47 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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“…Nowadays, polymers and elastomers have been attracting the attention of many researchers with its performance in the daily and environmental life of the planet due to their wide range of chemical and physical properties and excellent characteristics such as flexibility and corrosion resistance [1]. Among polymers, there is an increasing interest in the study of polydimethylsiloxane (PDMS) for applications such as mechanical and civil engineering, electronic devices, and in biomedical fields [2][3][4][5][6][7].…”

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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“…2c, an intensity peak can be observed at 284.8 eV, which belongs to Si-CH 3 . 10 As depicted in Fig. 2d, an intense peak can be observed at 103.9 eV, proving the presence of the O-Si-O bond.…”

Section: Resultsmentioning

confidence: 68%