Improved interfacial properties of carbon fiber/unsaturated polyester composites through coating polyhedral oligomeric silsesquioxane on carbon fiber surface

Jiang, Dawei; Liu, Li; Zhao, Feng; Zhang, Qingbo; Sun, Shaofan; He, Jiaojie; Jiang, Bo; Huang, Yudong

doi:10.1007/s12221-014-0566-4

Cited by 22 publications

(6 citation statements)

References 36 publications

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“…The information of the shape, distribution and relative hardness of different phases (including interface phase) can be obtained from the FMAFM test to provide the basis for the mechanism analysis of interface modication. [41][42][43][44] The AFM images of the cross-section morphology and FMAFM images of the interface region between CFs and the UPR matrix are shown in Fig. S2 † and 6.…”

Section: Interfacial Property Testingmentioning

confidence: 99%

Interfacially reinforced unsaturated polyester composites by chemically grafting different functional POSS onto carbon fibers

et al. 2014

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Monofunctional (methacrylolsobutyl) and multifunctional (methacryl) polyhedral oligomeric silsesquioxane (POSS) were successfully grafted on a carbon fiber (CF) surface to enhance the interfacial strength of CF reinforced unsaturated polyester resin (UPR) composites. The silicon containing functional groups were obviously increased on the CFs after the successful grafting of POSS onto the CF surface. Both kinds of POSS were uniformly grafted on the CF surface and the surface roughness of the CFs grafted with methacryl POSS and methacrylolsobutyl POSS was almost the same (131.6 and 129.6 nm) but much higher than that of the as-received CFs (57.9 nm). Dynamic contact angle analysis of the CFs grafted with both POSS showed almost the same surface energy but higher than that of the as-received CFs.After being grafted with methacrylolsobutyl POSS, the interlaminar shear strength of the composites was 62 MPa, increased by 31.9%, however, in terms of methacryl POSS the value was 67 MPa, increased by 42.6% compared with that of the as-received CFs (47 MPa). The interfacial shear strength (IFSS) of the composites with methacryl POSS grafted CFs (93 MPa) was significantly increased by 102.2% compared with the composites with the as-received CFs (46 MPa) and is even higher than that of the composites with methacrylolsobutyl POSS grafted CFs (87 MPa). The impact energy of 1.72 J for the composites with methacryl POSS grafted CFs is higher than that of the composites with as-received CFs (1.00 J) and methacrylolsobutyl POSS grafted CFs (1.43 J).

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Section: Interfacial Property Testingmentioning

confidence: 99%

Interfacially reinforced unsaturated polyester composites by chemically grafting different functional POSS onto carbon fibers

et al. 2014

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“…19,20 Aliphatic polyesters are substantially resistant to oxidation by air or ozone under normal conditions, but are degraded rapidly by ammonia, hydrazine, warm alkali solutions, and primary or secondary amines, which cleave the ester linkage forming hydroxyl groups and the salt or amide derivatives of the carboxyl functionality. The addition of POSS hybride composite can improve the mechanical properties of the linear polyester such as strength, 21,22 modulus, 23,24 and rigidity 25,26 and can reduce its flammability, 27,28 heat evolution, 29,30 and viscosity 31,32 during processing. These developments have been investigated in a wide variety of commercial high-performance thermoset 33,34 and thermoplastic composites.…”

Section: Introductionmentioning

confidence: 99%

Polyhedral oligomeric silsesquioxane-based aliphatic polyester composites: Synthesis, characterization, and investigation of thermal properties

Saltan

Akat

2019

Journal of Thermoplastic Composite Materials

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In this article, polyhedral oligomeric silsesquioxane (POSS)-containing aliphatic polyester composites were synthesized using condensation polymerization. Firstly, a series of polyesters have been prepared from malonic acid, succinic acid, adipic acid, sebacic acid (diacids), and 1,4-butanediol. On the other step of this study, polyester composites were synthesized between 1,2-propanediolisobutyl POSS (POSS-Diol) and diacid. For comparison, the same reaction was repeated in the presence of 1,4-butanediol, POSS-Diol, and diacids. The resulting samples were characterized by proton nuclear magnetic resonance, X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared spectroscopy. Thermal behaviors of molecules were analyzed using thermogravimetry (TG) analysis. Molecular weights of synthesized polymers were determined with gel permeation chromatography (GPC). The XPS results indicate that the POSS hybrid molecule was successfully incorporated into the polyester structure. The characteristic binding energies of organic silicium atoms and Si–O were observed at 102 eV and 104 eV, respectively. According to the results from GPC, POSS-containing polyester composites (POSS-Diol + diacid + 1,4-butanediol) have higher molecular weight. The number-average molecular weights ( M n) of polyester composites b1,b2,b3, and b4 are found to be 6800 g/mol, 7050 g/mol, 7200 g/mol, and 7250 g/mol, respectively. TG results show that the resistance to thermal degradation of POSS-containing polymer bonds is not strong as expected. The results support that the synthesized POSS-based polyesters can be used as high-performance commercial polymers.

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“…Among these treatments, the oxidation with nitric acid (HNO 3 ) and treated with a coupling agent such as trimethoxy(propyl)silane (TMPS) is known to be a very efficient way to improve the interfacial interlocking between the matrix and reinforcement . Few researchers have focused on the effect of silane coupling agents on the surface of CF …”

Section: Introductionmentioning

confidence: 99%

Fabrication of hybrid matrix/silane modified carbon fabric composites and study of their mechanical properties

Latif

Prabhakar

Song

2019

J of Applied Polymer Sci

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Carbon fiber reinforced polymer composites are an extremely strong and light fiber‐reinforced plastics that contains carbon fiber. In the present study, carbon fabrics were treated with various weight percentages of silane and were confirmed by spectral analysis (Fourier transform infrared). The treated carbon fibers were reinforced in hybrid resin (a combination of vinyl ester and epoxy at a ratio of 80:20) by using vacuum‐assisted resin transfer mold technique. The composites were tested to know their tensile strength, modulus, flexural strength, modulus, and interlaminar shear strength. The hybrid matrix specimen was also prepared and tested for the mechanical properties and confirmed the miscibility by differential scanning calorimetry and X‐ray diffraction. The mechanical properties of hybrid matrix composites (HMCs) were studied by fracture surface morphology with scanning electron microscope. The mechanical properties of the HMCs increased with silane treatment. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47695.

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Improved interfacial properties of carbon fiber/unsaturated polyester composites through coating polyhedral oligomeric silsesquioxane on carbon fiber surface

Cited by 22 publications

References 36 publications

Interfacially reinforced unsaturated polyester composites by chemically grafting different functional POSS onto carbon fibers

Interfacially reinforced unsaturated polyester composites by chemically grafting different functional POSS onto carbon fibers

Polyhedral oligomeric silsesquioxane-based aliphatic polyester composites: Synthesis, characterization, and investigation of thermal properties

Fabrication of hybrid matrix/silane modified carbon fabric composites and study of their mechanical properties

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