Evaluation of blue Cupressus Arizona cone in automotive brake pad biocomposite

Yavuz, Hicri

doi:10.15376/biores.18.3.5182-5197

Cited by 5 publications

(1 citation statement)

References 38 publications

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“…Biocomposites possess a range of specialized structures with different requirements on temperature and operating conditions, which depend on their applications in different areas (Mathias et al 2015;Noor Haris et al 2022;Yavuz 2023). Therefore, surface hydrophobic modification is usually performed by surface coating method (Huang et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Enhanced dimensional stability of straw-based biocomposites modified with UV light-cured coatings

Yuan,

Sun,

et al. 2024

BioRes

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This study demonstrated an effective method to enhance the dimensional stability of straw-based biocomposites with modified lignosulfonate as a binder. The ultraviolet (UV) light-curable nanosol was prepared by adding 3-(trimethoxysilyl)propyl methacrylate (MEMO) as sol–gel precursor into polyvinyl alcohol (PVA) solution. The MEMO/PVA coatings were generated using 2-hydroxy-2-methyl-1-phenylpropan-1-one (Darocur 1173) as radical photo-initiator and chitosan (CS) as additive, on straw-based biocomposites via UV-curing process. The effects of the crucial steps, such as the UV-curing process, hydrolysis time, Darocur 1173 dosage, and CS dosage on the dimensional stability of straw-based biocomposites, were evaluated. The optimum preparation parameters, obtained using the Box–Behnken design, were 31.9 min hydrolysis time, 4.5% Darocur 1173 dosage, and 2.7% CS dosage. Moisture resistance of minimum TS of CS-MEMO/PVA-coated straw-based biocomposites resulted in ~23.1% reduction in dimensional stability without significant decline in the mechanical properties when compared with those without UV curing. Moreover, the glossy spherical particles underwent arrangement in a fish-scale shape with scales closely linked with each other and no agglomeration occurred in CS-MEMO/PVA hybrid film. The CS promoted the cross-linking of MEMO/PVA coating on the biocomposite surface. The resulting biocomposites can be directly applied to public humid-environment applications such as bath furniture and bathroom partitions.

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Section: Introductionmentioning

confidence: 99%

Enhanced dimensional stability of straw-based biocomposites modified with UV light-cured coatings

Yuan,

Sun,

et al. 2024

BioRes

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An investigation on the performance of vehicle brake pads developed from Cortaderia selloana based biomass

Yavuz,

Bayrakçeken,

Çengelci

et al. 2024

Biomass Conv. Bioref.

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Nowadays, researchers are making intense efforts to develop biomass-based industrial products. This study developed low-metallic and asbestos-free samples based on Cortaderia selloana (12–15% and 18% ratios), a natural species, to contribute to the brake pad field. The developed samples’ friction coefficient and wear rate experiments were carried out on a brake pad test device with a load of 1 MPa and a disk rotation speed of 6 m/s, according to the TS555 standard. Scanning electron microscopy and electron-dispersive x-ray analysis were performed on the worn surfaces of the samples. According to the results obtained, the wear rate increased while the average friction coefficient decreased in the brake pad samples using 18% Cortaderia selloana content in the sample content. In scanning electron microscopy analysis, primary and secondary plateau formations were observed on the worn surfaces of all samples. At the same time, samples containing 15% and 18% Cortaderia selloana also showed signs of abrasive wear. High friction coefficient and low wear rate are expected for brake pads to be used in automobiles. In general, the friction of brake pads must be within the range, and it is always necessary to balance the friction to avoid driver discomfort. However, except for some racing applications, a high coefficient of friction is only sometimes desirable, which can cause rotor wear problems. As a result of this research, a consistent friction coefficient and low wear rate for the brake pads with the brake pad sample containing 12% Cortaderia selloana.

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Friction, wear, and hardness properties of hybrid vehicle brake pads and effects on brake disc roughness

Yavuz

2024

Materials Testing

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Considering the emerging importance of a sustainable green environment today, this study contributed to realizing resource sustainability by expanding the use of natural materials in the brake pad sector. Brake pads used in vehicle applications were developed using natural components, and their effects on brake performance properties were observed in brake pad samples containing four different amounts of natural components with additive rates of 0 %, 4 %, 8 %, and 12 %. Tests were conducted on the pad tester to determine the samples’ friction coefficient and wear rates. Hardness measurements were made with a Shore D measuring device. Average and maximum disc roughness were measured to determine the effect of brake pads on the brake disc. Microscopic analyses were performed with a scanning electron microscope. The results showed that using tamarind seed powder in the pad content created a synergy with alumina, brass powder, and graphite as friction modifiers, and the friction coefficient increased slightly. Considering the emerging importance of a sustainable green environment today, it has been determined that using natural materials contributes to realizing resource sustainability by expanding its application in the brake pad sector and positively affecting the brake system disc roughness.

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Evaluation of blue Cupressus Arizona cone in automotive brake pad biocomposite

Cited by 5 publications

References 38 publications

Enhanced dimensional stability of straw-based biocomposites modified with UV light-cured coatings

Enhanced dimensional stability of straw-based biocomposites modified with UV light-cured coatings

An investigation on the performance of vehicle brake pads developed from Cortaderia selloana based biomass

Friction, wear, and hardness properties of hybrid vehicle brake pads and effects on brake disc roughness

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