An effective surface modification of UHMWPE fiber for improving the interfacial adhesion of epoxy resin composites

Ultra‐high molecular weight polyethylene (UHMWPE) is utilized in hip joints because of its high impact strength, outstanding fracture resistance, near‐zero moisture absorption, superior chemical inertness, and lower coefficient of friction than other polymers. However, because of the high melt viscosity of UHMWPE, the melt state approach gives unsatisfactory mechanical strength results. In this research, composite materials are fabricated by heat‐assisted compression molding having graphene nanoplatelets (GNPs) used as a filler material in a composition of (UHMWPE + 5 wt% hydroxyapatite nanoparticles) at three different wt% ages (i.e., 0, 1, 2, and 3 wt%). Here mechanical characteristics such as flexural, compression, and impact strength measurements according to ISO standards and SEM analysis are used to determine the aggregation of n‐HAp and GNP in UHMWPE. According to the authors' experimental results, biocomposite (with UHMWPE + 5 wt n‐HAp + 1 wt% GNP) has the lowest surface roughness value and excellent mechanical characterization compared to other compositions for hip joint. Flexural and compression strength improve by 25% and 40%, respectively, compared to pure UHMWPE. The multi‐objective optimization based on GRA‐AHP gives a better result at 5 wt% of hydroxyapatite nanoparticles and 1 wt% graphene nanoparticle reinforced in UHMWPE compared to other alternative materials.

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“…Smooth surfaces in hip joint bearing pairs generate less wear, increasing the life of implantation. [ 55 ]…”

Section: Resultsmentioning

confidence: 99%

Experimental analysis with grey relational analysis–analytic hierarchy process‐based hybrid optimization to analyze the effect of graphene nanoparticle reinforced ultra‐high molecular weight polyethylene/n‐HAp for hip joint

2022

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“…The large number of phenolic hydroxyl groups in the structure makes it easy for tannic acid to form stable nanofilms on substrates [43] . The adhesion of TA coating can improve the mechanical meshing ability, wettability and bonding force of UHMWPE fiber surface, thus improving the interface properties of composites [42] .…”

Section: Coatingmentioning

confidence: 99%

“…The tannic acid (TA) -Na + metal complex coating was used to modify UHMWPE fibers [42] . The large number of phenolic hydroxyl groups in the structure makes it easy for tannic acid to form stable nanofilms on substrates [43] .…”

Section: Coatingmentioning

confidence: 99%

Research progress on surface modification and application status of UHMWPE fiber

Wang

Hou

2022

J. Phys.: Conf. Ser.

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Ultrahigh molecular weight polyethylene (UHMWPE) fiber is a high-performance material with superior properties of high strength and modulus, low density, wear resistance and corrosion resistance. But the development of UHMWPE fiber reinforced polymers is hindered due to its inert inactive surface and poor interfacial adhesion with polymer matrix. This work presents the research progress on surface modification techniques, including ‘dry’ treatment, strong oxidant treatment, chemical grafting and coating, of UHMWPE fiber and the mechanisms of the improvement on surface properties and interfacial adhesion strength between the UHMWPE fiber and the polymer matrix. Application status of UHMWPE fiber such as aerospace, ocean engineering and individual protection is introduced.

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“…Wang et al demonstrated the use of a tannic acid-Na + coating to introduce reactive functional groups onto the surface of UHMWPE fibers to improve the interfacial shear strength (IFSS) of the UHMWPE composites by 43.3%, compared to untreated composites. [24] Mohammadalipour et al grafted glycidyl methacrylate (GMA) onto the UHMWPE fiber and embedded the fibers into a nano-clay/epoxy resin and demonstrated a 229% increase in IFSS measured using micro-droplet testing. [25] Ahmadi et al determined that the addition of multiwalled carbon nanotubes to a GMA and amino-thiol chemicaltreated fiber can yield a 336% improvement in IFSS.…”

Section: Introductionmentioning

confidence: 99%

Aramid Nanofiber Interphase for Enhanced Interfacial Shear Strength in Ultra‐High Molecular Weight Polyethylene/Epoxy Composites

Steinke

Sodano

2022

Adv Materials Inter

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Ultra-high molecular weight polyethylene (UHMWPE) has found widespread use as a reinforcement in polymer matrix composites in many ballistic applications due to their desirable mechanical properties such as high modulus, low density, high energy absorption, excellent abrasion, and fatigue resistance. [1][2][3] Additionally, the non-polar, inert, and chemical resistant surface properties allowing the UHMWPE fibers to be biocompatible make them an attractive choice in many medical device applications. However, the inert surface chemistry severely hinders the performance of UHMWPE fiber-reinforced composites in structural applications. [4,5] The performance of composite materials is primarily dependent on the choice of fiber, matrix, and their final properties are typically dictated by the interface between them. [6] Interfacial properties in composite materials are usually determined by chemical interactions, mechanical interlocking, and the size of the surface area between both interface constituents. [7,8] Due to the previously mentioned smooth and chemically inert nature of the fiber surface, interfacial debonding is a common failure mode observed in UHMWPE composites when used in structural applications. The chemically inert surface of the fibers can also result in poor resin wetting of the fibers during composite manufacturing, which can lead to poor interfacial properties. Therefore, it is important to tailor the UHMWPE fiber-matrix interface so that the structural performance of composites can be improved, and their potential applications expanded.To improve the fiber-matrix interface of UHMWPE fiberreinforced polymer composites, researchers have primarily investigated fiber-surface treatments to produce reactive functional groups. Chromic acid [9][10][11][12] and corona discharge [13][14][15][16] treatments are methods that impart micro-pits and introduce functional groups onto the surface of the fibers to improve bonding with the matrix. However, chromic acid treatments and longer corona discharge treatment periods lead to a reduction in the strength of the fiber. Another series of studies have shown that plasma treatments can improve the fiber-matrix interface of UHMWPE fiber-reinforced composites through increasing fiber surface roughness and the introduction of polar functional groups, while preserving the tensile properties. [17][18][19][20][21][22][23] Ultra-high molecular weight polyethylene (UHMWPE) fibers are used in ballistic composites due to their high tenacity; unfortunately, their use in structural composites remains limited due to their poor adhesion with polymer matrix materials. Interphase design to the fiber surface is a promising approach to improve the interfacial properties of composite materials. This work describes the use of an aramid nanofiber (ANF) dip-coating treatment of plasma-treated UHMWPE fibers that increases surface roughness and enhances mechanical interlocking with the matrix. The ANFs also populate the fibers with polar functional groups, specifically hydroxyl, amide, ke...

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An effective surface modification of UHMWPE fiber for improving the interfacial adhesion of epoxy resin composites

Cited by 48 publications

References 37 publications

Experimental analysis with grey relational analysis–analytic hierarchy process‐based hybrid optimization to analyze the effect of graphene nanoparticle reinforced ultra‐high molecular weight polyethylene/n‐HAp for hip joint

Experimental analysis with grey relational analysis–analytic hierarchy process‐based hybrid optimization to analyze the effect of graphene nanoparticle reinforced ultra‐high molecular weight polyethylene/n‐HAp for hip joint

Research progress on surface modification and application status of UHMWPE fiber

Aramid Nanofiber Interphase for Enhanced Interfacial Shear Strength in Ultra‐High Molecular Weight Polyethylene/Epoxy Composites

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