2021
DOI: 10.3390/polym13040567
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Effects of Alkyl-Substituted Polybenzoxazines on Tribological Properties of Non-Asbestos Composite Friction Materials

Abstract: A series of substituted polybenzoxazines was synthesized and studied as binders in non-asbestos friction composite materials. The structures of the polybenzoxazines were varied in a systemic fashion by increasing the number and position of pendant alkyl (methyl) groups and was accomplished using the respective aromatic amines during the polymer synthesis step. By investigating the key thermomechanical and tribological characteristics displayed by the composite materials, the underlying structure-properties rel… Show more

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Cited by 15 publications
(8 citation statements)
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“…However, one single component usually affects many different characteristics besides the targeted aspect: even reinforcing fibers play a critical role regarding tribological-friction and wear-properties [3]. Furthermore, even binders can modify friction behavior of composites, as was found by Wongpayakyotin et al [4], while Bijwe [5] stated that aromatic polyamide guarantees good wear properties and a stable coefficient of friction. Furthermore, copper turned out to be a component that improves all major properties of frictional materials in the investigations by Kumar et al [6].…”
Section: Introductionmentioning
confidence: 97%
“…However, one single component usually affects many different characteristics besides the targeted aspect: even reinforcing fibers play a critical role regarding tribological-friction and wear-properties [3]. Furthermore, even binders can modify friction behavior of composites, as was found by Wongpayakyotin et al [4], while Bijwe [5] stated that aromatic polyamide guarantees good wear properties and a stable coefficient of friction. Furthermore, copper turned out to be a component that improves all major properties of frictional materials in the investigations by Kumar et al [6].…”
Section: Introductionmentioning
confidence: 97%
“…Recently, polybenzoxazine has emerged as a promising alternative polymeric binder that is potentially capable of replacing conventional phenolic resins. With a similar chemical structure to phenolic resins, polybenzoxazine exhibits fascinating and innovative properties, making it a perfect candidate as a polymeric binder in friction materials [12,13]. The advantages of polybenzoxazine include a low melt viscosity at curing temperatures, excellent interfacial adhesion with organic and inorganic fillers, thermally activated catalyst-free and curing-agent-free ring-opening reactions, volatile-free polymerization, etc.…”
Section: Introductionmentioning
confidence: 99%
“…Polymer composite materials composed of different reinforcements and fillers into several engineering polymers to replace metallic and ceramics are currently used in structural applications such as automotive, construction, spacecraft, marine, etc. [ 1 , 2 , 3 ]. In automotive applications, friction polymer composites such as brake pads are a key brake part because they are the component that contacts and applies pressure and friction to a vehicle’s brake rotors, resulting in stopping the wheel; in consequence, the vehicles stop moving.…”
Section: Introductionmentioning
confidence: 99%