Effects of Styrene-Acrylic Sizing on the Mechanical Properties of Carbon Fiber Thermoplastic Towpregs and Their Composites

Bowman, Sean; Memon, Hafeezullah; Liu, Wanshuang; Wei, Yi

doi:10.3390/molecules23030547

Cited by 30 publications

(17 citation statements)

References 63 publications

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“…[1][2][3] Carbon fiber (CF) has a high strength to weight ratio, and thus it can provide excellent strength and stiffness in CFRP. [4,5] However, due to the high temperature carbonization/ graphitization step in the manufacturing process of CF, its surface is a kind of chemically inert, non-polar surface with low surface energy. [6] The existence of this kind of non-polar surface greatly limits the bonding performance between CF and resin matrix, which makes the potential performance of CFRP unable to be fully utilized.…”

Section: Introductionmentioning

confidence: 99%

Waterborne epoxy sizing agent with hyperbranched structure to improve the interface performance of carbon fiber

et al. 2021

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The epoxy resin was modified by hyperbranched structure of hydroxyl terminated to obtain waterborne epoxy resin for using as the carbon fiber (CF) sizing agent. By mixing method of waterborne epoxy resin and water, the waterborne epoxy sizing agent can be fabricated directly. In the sizing process, free of volatile organic solvents ensure the safety of operators and environment. Moreover, the introduction of tertiary amine group in hyperbranched structure will promote the reaction between epoxy and hydroxyl groups, and thus enhance the bonding strength between CF and epoxy resin. Results showed that the introduction of sizing agent does not sacrifice the CF single fiber tensile strength. The structure of epoxy resin retained in sizing agent is beneficial to the good wettability between CF and epoxy resin according to surface energy results. Interfacial shear strength value increases from 51.75 to 72.34 MPa, and interlaminar shear strength value increases from 80.32 to 90.34 MPa. These mechanical properties show that hyperbranched epoxy resin sizing agent with a large amount of hydroxyl groups can effectively improving the interface adhesion between CF and epoxy resin, showing a broad application prospect in composite materials field.

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Section: Introductionmentioning

confidence: 99%

Waterborne epoxy sizing agent with hyperbranched structure to improve the interface performance of carbon fiber

et al. 2021

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“…12,[22][23][24] Jute fiber-reinforced polymer composites have a strong relationship between the fine structure of fibers and their thermo-mechanical and flexural properties. For example, various surface treatments of jute fibers (i.e., alkali, silane, and alkali/silane treatments) were used in jute fiber reinforced composites containing epoxy resin as a matrix [25][26][27] that was introduced by vacuum-assisted resin infusion. [28][29][30][31] Some researchers have applied finishing agents (e.g., fluorocarbon and micro-silicone) to textiles and enhanced the surface properties of jute fabric reinforced composites with polyester matrix and their flexural behaviors.…”

Section: Introductionmentioning

confidence: 99%

Study on Thermal, Thermo-Mechanical, and Flexural Properties of Jute Fiber Surface Modification and Its Reinforced Composite

Islam¹,

Alassod²,

Patoary³

et al. 2021

AATCC Journal of Research

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In recent years, reinforced composites from biodegradable and natural fibers have a worldwide scope for advanced applications. However, the core limitation of natural fiber reinforced composites are poor consistency among supporting fibers and the matrix. Therefore, optimal structural performance of fibers and matrix is desirable. In this study, chemical treatments (i.e., alkali pretreatment, acid pretreatment, and scouring) were applied to jute fibers for improvement of composite properties. Thermal, thermo-mechanical, and flexural properties, and surface morphology, of untreated and treated jute fibers were studied on the treated fibers. Jute fiber/epoxy composite properties were analyzed by thermogravimetric analysis (TGA), flexural strength and modulus, and dynamic mechanical analysis (DMA). The chemical treatments had a significant impact on the properties of jute fiber composites.

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“…Therefore, fiber-reinforced plastics have successfully replaced their heavy metal and ceramic as well as expensive engineering plastic counterparts. In general, fiber-reinforced plastics are either made up of thermosets or thermoplastic resin as a matrix, with either synthetic or natural fibers as a reinforcing material [5,6,7]. Due to the large amounts of debris they generate and the scarcity of fossil fuels, more and more attention has been paid to the use of sustainable, biodegradable, and green composites.…”

Section: Introductionmentioning

confidence: 99%

Effect of Jute Fiber Modification on Mechanical Properties of Jute Fiber Composite

et al. 2019

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Recently, the demand for reinforced plastics from natural, sustainable, biodegradable, and environmentally friendly fibers has been rising worldwide. However, the main shortcoming of natural fibers reinforced plastics is the poor compatibility between reinforcing fibers and the matrix. Hence, it is necessary to form a strong attachment of the fibers to the matrix to obtain the optimum performance. In this work, chemical treatments (acid pretreatment, alkali pretreatment, and scouring) were employed on jute fibers to modify them. The mechanical properties, surface morphology, and Fourier transform infrared spectra of treated and untreated jute fibers were analyzed to understand the influence of chemical modifications on the fiber. Then, jute fiber/epoxy composites with a unidirectional jute fiber organization were prepared. Basic properties of the composites such as the void fraction, tensile strength, initial modulus, and elongation at break were studied. The better interfacial adhesion of treated fibers was shown by scanning electron microscope (SEM) images of fractured coupons. Hence, the chemical treatment of jute fiber has a significant impact on the formation of voids in the composites as well as the mechanical properties of jute fiber composites.

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Effects of Styrene-Acrylic Sizing on the Mechanical Properties of Carbon Fiber Thermoplastic Towpregs and Their Composites

Cited by 30 publications

References 63 publications

Waterborne epoxy sizing agent with hyperbranched structure to improve the interface performance of carbon fiber

Waterborne epoxy sizing agent with hyperbranched structure to improve the interface performance of carbon fiber

Study on Thermal, Thermo-Mechanical, and Flexural Properties of Jute Fiber Surface Modification and Its Reinforced Composite

Effect of Jute Fiber Modification on Mechanical Properties of Jute Fiber Composite

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