Modified silicone oil types, mechanical properties and applications

Aziz, T.; Fan, Hong; Khan, Farman Ullah; Haroon, Muhammad; Cheng, Li

doi:10.1007/s00289-018-2471-2

Cited by 59 publications

(34 citation statements)

References 50 publications

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“…They have fast curing property and excellent modulus, which assist in fabricating composites having wide variety applications [3]. Epoxy resins, commonly have been used as thermosetting materials, especially in ber manufacturing materials [4,5]. However, relatively high content of hydroxyl groups shows high surface energy, attracting their application in some areas, such as anti-fouling coating [6,7].…”

Section: Introductionmentioning

confidence: 99%

Enhancement in Adhesive and Thermal Properties of Bio‐based Epoxy Resin by Using Eugenol Grafted Cellulose Nanocrystals

Aziz

Zheng

Jamil

et al. 2021

J Inorg Organomet Polym

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Bio-based epoxy resins are being used due to their green chemistry. They have better properties than petroleum-based epoxy resins. Recently, environment friendly nanomaterials have been used for different industrial applications. Cellulose nanocrystals (CNCs) are among the best naturally occurring materials.Therefore, the surface of cellulose nanocrystals are modi ed by eugenol-based silane coupling agent (EBSCA). Chemical composition and surface morphologies of CNCs were analyzed and characterized by FTIR, AFM, SEM, TEM and 1 H-NMR. The SEM and AFM results con rmed eugenol-based silane coupling agent was successfully grafted on cellulose nanocrystals. Modi ed CNCs demonstrated an excellent tensile strength (2190 MPa) and modulus (16.00 MPa), as well as storage modulus (1622 MPa) exhibited by 1wt% modi ed cellulose nanocrystals composites. Additionally, modi ed CNCs displayed hydrophobic behavior (CA=102 ± 2°). The corresponding modi ed CNCs have signi cant applications in combination of high stiffness and strength to the epoxy resins. This study lays a foundation towards full bio-based, environment friendly polymers fabrication and consumptions most desirable in adhesive and mechanical industrial elds.

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Section: Introductionmentioning

confidence: 99%

Enhancement in Adhesive and Thermal Properties of Bio‐based Epoxy Resin by Using Eugenol Grafted Cellulose Nanocrystals

Aziz

Zheng

Jamil

et al. 2021

J Inorg Organomet Polym

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“…As a consequence of their thermal stability, these polymers are used as thermal fluids, and in LEDs, etc., in elastomeric form. [3][4][5] The aromatic groups also convey much higher refractive indices to the polymers, typically 1.5 or higher. [6][7][8][9] In describing these polymers below, we will focus on two parameters: M n , and the ratio of phenyl groups to silicon atoms that are present in the polymer, expressed as Ph/Si.…”

Section: Introductionmentioning

confidence: 99%

“…The aromatic group conveys higher thermal stability (and higher T g ) to the already stable silicone chain. As a consequence of their thermal stability, these polymers are used as thermal fluids, and in LEDs, etc., in elastomeric form 3–5 . The aromatic groups also convey much higher refractive indices to the polymers, typically 1.5 or higher 6–9 .…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis of phenyl‐rich functional siloxanes from simple silanes

Schneider

et al. 2020

Journal of Polymer Science

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Phenyl-rich silicone polymers are used for their excellent thermal properties and high refractive indices. Traditional syntheses of these polymers utilize cationic or anionic equilibration, which limits the molecular weights that can be achieved due, in part, to the coproduction of cyclic monomers that must be removed. Kinetically controlled processes may reduce the impact of these limitations, but require high temperatures, alkyllithium initiators and an inert atmosphere; precise structures are difficult to access. The Piers-Rubinsztajn reaction, combined with hydrolysis, allows the synthesis of highly ordered, Si-H terminated, phenyl-rich silicone homo-and copolymers comprised of phenylmethyl, diphenyl and, dimethylsilicone monomers. The processes are mild and permit a high level of structural control, including alternating copolymers with different levels of phenyl content (Ph/Si = 0.3-1.5) with molecular weights up to 100 kDa. Yet higher molecular weights could be achieved-M n up to 300 kDa-when phenyl-rich siloxanes were incorporated into block copolymers with dimethylsilicones (Ph/Si = 0.4). Unlike kinetic processes in which cyclic byproducts are formed by redistribution or backbiting (particularly at high conversion), in this process cyclics form near the onset of the reaction and only with low molecular weight starting materials (< 4 siloxane units).

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“…Synthetic materials exhibit unique characteristics such as high elasticity, easy availability, and good biocompatibility [ 46 , 47 , 48 ]. Among synthetic materials, silicone elastomers are the most promising in terms of low toxicity, good biocompatibility, physiological inertness, excellent thermal and oxidative stability, and removability [ 49 , 50 , 51 , 52 ]. For anti-wrinkle treatment, Yu et al recently designed a cross-linked elastic artificial skin film based on a two-component polysiloxane consisting of a W/O emulsion of vinyl/hydrogen dimethicone and a catalyst.…”

Section: Introductionmentioning

confidence: 99%

“…Upon application to the skin and formation of the silicone-based elastic artificial skin film, physical and skin adhesive forces pull the applied skin, which results in reduction of wrinkles [ 53 ]. Elastic artificial skin is a highly convenient topical system because it can be quickly formulated via a cross-linking reaction by mixing two-components of A (vinyl dimethicone + Karstedt catalyst) and B (hydrogen dimethicone) [ 49 , 52 , 54 ].…”

Section: Introductionmentioning

confidence: 99%

Design and Characterization of Elastic Artificial Skin Containing Adenosine-Loaded Solid Lipid Nanoparticles for Treating Wrinkles

Yeo

Jung

Cho³

et al. 2020

Pharmaceutics

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Adenosine (AD), which is used for treating wrinkles, exhibits poor skin permeation. The aim of the present study was to develop a cross-linked silicone-based cellulose elastomer as an elastic artificial skin for the treatment of skin wrinkles, a biocompatible lipid-based nano-carrier for enhancing the skin permeation of AD, and a formulation consisting of the lipid-based carrier incorporated in the elastic artificial skin. AD-loaded solid lipid nanoparticles (SLNs) were prepared using a double-emulsion method. Particle characteristics and mechanical properties of SLNs and elastic artificial skin, respectively, were assessed. Skin permeation was evaluated using SkinEthic RHE tissue, a reconstructed human epidermis model. The mean particle size and zeta potential for SLNs ranged from 123.57 to 248.90 nm and −13.23 to −41.23 mV, respectively. The components of neither SLNs nor the elastic artificial skin were cytotoxic, according to cell- and tissue-viability assays and EU classification. SLNs and the elastic artificial skin exhibited sustained drug release for 48 h. The amount of AD released from SLNs and elastic artificial skin was approximately 10 times and 5 times higher, respectively, than that from AD solution. Therefore, elastic artificial skin incorporated with AD-loaded SLNs may serve as a promising topical delivery system for cosmeceutical treatment of skin wrinkles.

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Modified silicone oil types, mechanical properties and applications

Cited by 59 publications

References 50 publications

Enhancement in Adhesive and Thermal Properties of Bio‐based Epoxy Resin by Using Eugenol Grafted Cellulose Nanocrystals

Enhancement in Adhesive and Thermal Properties of Bio‐based Epoxy Resin by Using Eugenol Grafted Cellulose Nanocrystals

Facile synthesis of phenyl‐rich functional siloxanes from simple silanes

Design and Characterization of Elastic Artificial Skin Containing Adenosine-Loaded Solid Lipid Nanoparticles for Treating Wrinkles

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