Elastomeric sizings for glass fibers and their role in fiber wetting and adhesion in resin transfer molded composites

Barraza, Harry J.; Olivero, Kristian A.; Hamidi, Youssef K.; O’Rear, Edgar A.; Altan, M. Cengiz

doi:10.1163/15685540260494083

Cited by 11 publications

(4 citation statements)

References 55 publications

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“…55 Reinforcement of the RTMs was done in two ways. One by using glass fibers pulled out from the fiber tow and another by having four stacked layers of chopped strand mats.…”

Section: Use Of Admicellar-treated Glass Fibers In Resin-transfer Moldsmentioning

confidence: 99%

Admicellar Polymerization and Its Application in Textiles

Ulman

Shukla

2015

Adv. Polym. Technol.

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This article is an overview of a novel polymerization technique known as admicellar polymerization (ADPM).ADPM is known as a "surface analogue" of emulsion polymerization, and it consists of three main steps that include (1) admicelle formation, (2) adsolubilization, and (3) polymerization. This review encompasses all the applications of ADPM in the field of textiles. ADPM has been used mainly for finishing of textiles, e.g., for achieving flame retardancy, UV protection, water repellency, etc. It has also been used for improving the adhesion of natural fibers used for the reinforcement of polymer matrices. It was observed that though an extensive and constructive research work has been conducted at laboratory level to understand ADPM process and explore its applications, its industrial acceptance in textiles has not been reported yet. Scope for further research has also been discussed in this review article. C 2015 Wiley Periodicals, Inc. Adv Polym Technol 2015, 0, 21556; View this article online at wileyonlinelibrary.com.

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“…55 Reinforcement of the RTMs was done in two ways. One by using glass fibers pulled out from the fiber tow and another by having four stacked layers of chopped strand mats.…”

Section: Use Of Admicellar-treated Glass Fibers In Resin-transfer Moldsmentioning

confidence: 99%

Admicellar Polymerization and Its Application in Textiles

Ulman

Shukla

2015

Adv. Polym. Technol.

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“…Due to their light weight and high performance, composite materials are being increasingly used in structural applications in key industries such as aerospace, automotive, energy and infrastructure [1]. Predicting and characterizing the behavior of composite materials is a key problem in materials research and development.…”

Section: Introductionmentioning

confidence: 99%

Prediction of moisture saturation levels for vinylester composite laminates: A data-driven approach for predicting the behavior of composite materials

Hamidi¹,

Berrado²,

Altan³

2019

AIP Conference Proceedings

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This paper introduces a comprehensive, data-driven method to predict the properties of composite materials, such as thermo-mechanical properties, moisture saturation level, durability, or other such important behavior. The approach is based on applying data mining techniques to the collective knowledge in the materials field. In this article, first, a comprehensive database is compiled from published research articles. Second, the Random Forests algorithm is used to build a predictive model that explains the investigated material response based on a wide variety of material and process variables (of different data types). This advanced statistical learning approach has the potential to drastically enhance the design of composite materials by selecting appropriate constituents and process parameters in order to optimize the response for a specific application. This method is demonstrated by predicting the moisture saturation level for vinylester-based composite laminates. Using 90% of the available published data available as the training dataset, the Random Forests algorithm is used to develop a regression model for the moisture saturation level. Variables considered by the model include the manufacturing process, the fiber type and architecture, the fiber and void contents, the matrix filler type and content, as well as the conditioning environment and temperature. On this training data, the model proved to be a good fit with a prediction accuracy of R 2 training=94.96%. When used to predict the moisture saturation level for the remaining unseen 10% of the compiled data, the model exhibited a prediction accuracy of R 2 test=85.28%. Furthermore, the Random Forests model allows the assessment of the impact of the different variables on the moisture saturation level. The fiber type is found to be the most important determinant on the moisture saturation level in vinylester composite laminates.

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“…First, silk fabric is mostly used as received and surface treatment is seldom attempted to improve the silk/epoxy interface [31,32,33]. Generally, fiber sizing can be used to tune the bulk properties of composite laminates [34,35]. Surface treatment of natural fibers has been shown to significantly improve the properties of composite laminates [36,37,38,39].…”

Section: Introductionmentioning

confidence: 99%

Silk as a Natural Reinforcement: Processing and Properties of Silk/Epoxy Composite Laminates

et al. 2018

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With growing environmental awareness, natural fibers have recently received significant interest as reinforcement in polymer composites. Among natural fibers, silk can potentially be a natural alternative to glass fibers, as it possesses comparable specific mechanical properties. In order to investigate the processability and properties of silk reinforced composites, vacuum assisted resin transfer molding (VARTM) was used to manufacture composite laminates reinforced with woven silk preforms. Specific mechanical properties of silk/epoxy laminates were found to be anisotropic and comparable to those of glass/epoxy. Silk composites even exhibited a 23% improvement of specific flexural strength along the principal weave direction over the glass/epoxy laminate. Applying 300 kPa external pressure after resin infusion was found to improve the silk/epoxy interface, leading to a discernible increase in breaking energy and interlaminar shear strength. Moreover, the effect of fabric moisture on the laminate properties was investigated. Unlike glass mats, silk fabric was found to be prone to moisture absorption from the environment. Moisture presence in silk fabric prior to laminate fabrication yielded slower fill times and reduced mechanical properties. On average, 10% fabric moisture induced a 25% and 20% reduction in specific flexural strength and modulus, respectively.

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Elastomeric sizings for glass fibers and their role in fiber wetting and adhesion in resin transfer molded composites

Cited by 11 publications

References 55 publications

Admicellar Polymerization and Its Application in Textiles

Admicellar Polymerization and Its Application in Textiles

Prediction of moisture saturation levels for vinylester composite laminates: A data-driven approach for predicting the behavior of composite materials

Silk as a Natural Reinforcement: Processing and Properties of Silk/Epoxy Composite Laminates

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