Rational design of a functionalized silicone polymer for modifying epoxy-based composites

Shi, Yi-Cheng; Ma, Baoguo; Guan, Jipeng; Ye, Bei; Yu, Lichao; Wu, Zhi‐Min; Shen, Xiao‐Jun; Habaue, Shigeki

doi:10.1016/j.jmrt.2022.06.086

Cited by 11 publications

(7 citation statements)

References 32 publications

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“…This is caused by the more synergistic motion of polymer chains as the temperature rises, which results in energy loss. 35 It shows that the E' of the PSOL/CF/EP composites is below that of the unmodified composite at 35 C. The trend is the same as that of the elastic modulus obtained in the tensile test. The PSOL is a flexible chain with a small modulus.…”

Section: Dynamic Mechanical Properties Of Cf/ep Compositessupporting

confidence: 69%

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Modified mechanical properties of carbon fiber/epoxy composite by silicone polymer

Shi

Dang

et al. 2023

Polymer Composites

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In this work, silicone polymer (PSOL)/carbon fiber (CF)/epoxy (EP) composites were prepared by introducing PSOL as interfacial modifiers into CF/EP composites. The mechanical and dynamic mechanical properties of the composites were investigated, and the optimum content of the PSOL modification was obtained. The impact of EP on the wettability of CF was compared before and after adding PSOL. The micromorphology of CF/EP composites was also observed. The consequences demonstrate that the interfacial bonding ability between CF and matrix was improved after adding PSOL. The interlaminar shear strength, tensile strength, elongation at break and flexural strength of PSOL/CF/EP composites were increased by 23.28%, 18.49%, 38.45% and 11.23%, respectively. Furthermore, the original thermal stability of the composite was preserved after the modification of PSOL.

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Section: Dynamic Mechanical Properties Of Cf/ep Compositessupporting

confidence: 69%

“…The preparation of silylated PSOL is referred to our previous work. 35 The volume fraction of fibers and the density of composites are calculated according to our previous method. 36 The mechanical properties of samples were tested by a mechanical testing apparatus (AG-X Plus, Shimadzu, Japan).…”

Section: Characterizationmentioning

confidence: 99%

Modified mechanical properties of carbon fiber/epoxy composite by silicone polymer

Shi

Dang

et al. 2023

Polymer Composites

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“…In [84], a new type of functionalized silicone polymer was designed and synthesized. The DMA test showed that the functionalized silicon polymer preserved the heat resistance of the epoxy composite material to a certain extent while strengthening the epoxy.…”

Section: Applications Of Composite Materialsmentioning

confidence: 99%

“…The concentration of SMC-K has a significant impact on the performance of AAs, and AAs with SMC-K/PVA ratios of 1:1 or 2:1 exhibited hierarchical pore structures, low densities, good mechanical properties, and affinity/high absorption for water and organic liquids. In [101], the rational design of a functionalized silicone polymer for the modification of epoxy-based composites was carried out. The tensile strength of PSOL-(N-TMSPrVaC)/EP composites was improved by 8.9% compared to pure epoxy resin when the content of PSOL-(N-TMSPrVaC) was 0.5 phr.…”

Section: Applications Of Composite Materialsmentioning

confidence: 99%

A Review on Modified Polymers and Their Composites

et al. 2022

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The main objective of this paper is to realise a review on fundamental research regarding the development of new and efficient methods to determine the mechanical, thermal, tribological, and thermo-mechanical properties of composite materials, analysing the results obtained through various graphs and diagrams accompanied by demonstrations and explanations from the specialized literature. Developing new materials or improving the properties of existing materials has been and is a concern of researchers. The chemistry of complex combinations represents one of the most important fields of scientific research, both in terms of theoretical investigations and practical applications. The interest shown towards complex combinations is justified by the contribution brought by the accumulation of knowledge about inorganic chemicals, polymers as well as about epoxy resins and polyvinyl ester, of course also about the design, formation and analysis through mechanical tests (compression, tension, three-point bending), thermal, tribological of composite materials modified with various modifying agents.

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“…Moreover, the low polarized C-Si bond and cavity shape of HSiEP imparted the system with excellent dielectric properties, making it potentially promising for applications in electronic packaging. Shi et al [ 20 ] synthesized epoxy modifiers by grafting compounds prepared from aminopropyltrimethoxysilane and valeryl chloride onto silicone polymers. The cured thermosets significantly enhanced their tensile and impact properties while remaining heat resistant.…”

Section: Introductionmentioning

confidence: 99%

High-Branched Organosilicon Epoxy Resin with Low Viscosity, Excellent Toughness, Hydrophobicity, and Dielectric Property

Chen

et al. 2023

Molecules

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Rapidly developing technology places higher demands on materials, thus the simultaneous improvement of materials’ multiple properties is a hot research topic. In this work, a high-branched silicone epoxy resin (QSiE) was synthesized and applied to the curing system of bisphenol A epoxy resin (DGEBA) for modification investigations. When 6 wt% QSiE was added to the system, the viscosity dropped by 51.8%. The mechanical property testing results indicated that QSiE could significantly enhance the material’s toughness while preserving good rigidity. The impact strength was enhanced by 1.31 times when 6wt% of QSiE was introduced. Additionally, the silicon skeleton in QSiE has low surface energy and low polarizability, which could endow the material with good hydrophobic and dielectric properties. This work provided a new idea for the preparation of high-performance epoxy resin additives, and provided a broad prospect for cutting-edge applications of epoxy resins.

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Rational design of a functionalized silicone polymer for modifying epoxy-based composites

Cited by 11 publications

References 32 publications

Modified mechanical properties of carbon fiber/epoxy composite by silicone polymer

Modified mechanical properties of carbon fiber/epoxy composite by silicone polymer

A Review on Modified Polymers and Their Composites

High-Branched Organosilicon Epoxy Resin with Low Viscosity, Excellent Toughness, Hydrophobicity, and Dielectric Property

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