Study on Physical Properties of Polyphenylene Sulfide Composites with Variothermal Mold Temperatures

Um, Chanhyeok; Jung, Dohyun; Yu, Seung Yong; Lee, Sang Sun; Lee, Hyun‐Wook; Lee, Pyoung‐Chan; Ko, Younki; Kyoung, Jeoung Sun; Ha, Jin Uk

doi:10.7317/pk.2020.44.6.798

Cited by 3 publications

(1 citation statement)

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“…The crystallization behavior of PPS is significantly influenced by these processes. Although the crystallization and melting behaviors [12][13][14][15] of PPS have been extensively investigated, most of studies only focused on a single meltcooling cycle for PPS [16][17][18][19][20], ignoring the potential influence of multiple thermal cycles on the crystallization behavior of PPS. Self-nucleation (SN) is a distinctive nucleation mechanism observed in semi-crystalline polymers under specific conditions of repeated thermal cycling.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Thermal Parameters on the Self-Nucleation Behavior of Polyphenylene Sulfide (PPS) during Secondary Thermoforming

Ren,

Li,

et al. 2024

Materials

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During the secondary thermoforming of carbon fiber-reinforced polyphenylene sulfide (CF/PPS) composites, a vital material for the aerospace field, varied thermal parameters profoundly influence the crystallization behavior of the PPS matrix. Notably, PPS exhibits a distinctive self-nucleation (SN) behavior during repeated thermal cycles. This behavior not only affects its crystallization but also impacts the processing and mechanical properties of PPS and CF/PPS composites. In this article, the effects of various parameters on the SN and non-isothermal crystallization behavior of PPS during two thermal cycles were systematically investigated by differential scanning calorimetry. It was found that the SN behavior was not affected by the cooling rate in the second thermal cycle. Furthermore, the lamellar annealing resulting from the heating process in both thermal cycles affected the temperature range for forming the special SN domain, because of the refined lamellar structure, and expelled various defects. Finally, this study indicated that to control the strong melt memory effect in the first thermal cycle, both the heating rate and processing melt temperature need to be controlled simultaneously. This work reveals that through collaborative control of these parameters, the crystalline morphology, crystallization temperature and crystallization rate in two thermal cycles are controlled. Furthermore, it presents a new perspective for controlling the crystallization behavior of the thermoplastic composite matrix during the secondary thermoforming process.

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Section: Introductionmentioning

confidence: 99%

The Influence of Thermal Parameters on the Self-Nucleation Behavior of Polyphenylene Sulfide (PPS) during Secondary Thermoforming

Ren,

Li,

et al. 2024

Materials

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Polyphenylene sulfide-coated wrench composites by nanopinning effect

Liu

Meng

Huang

et al. 2021

Nanotechnology Reviews

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When using a wrench, the nut is easily damaged due to improper operation or impact. Although coating a polymer layer on the surface of the wrench can effectively solve the above problem, the layer is easy to be deboned due to the lack of adhesion between the polymer and the surface of the wrench. Herein, we implemented an anodizing treatment strategy on the surface of the wrench to obtain a porous oxide film. Interestingly, during the anodization process, micro-nanopores with a specific diameter can be obtained by adjusting the voltage, temperature, and electrolyte concentration. Furthermore, the ammonium fluoride/ethylene glycol electrolyte was used to etch the formed large hole to form the large hole sleeve small hole structure. In order to inject polyphenylene sulfide (PPS) molecules into multiscale holes to form a pinning effect, we also used nano molding technology to inject PPS into the metal surface. The results showed that the adhesion between PPS and the wrench was greatly improved compared with the commonly used dip coating method.

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Development of a Lightweight Brake Piston for Passenger Car

Jang,

Lee

2024

kspse

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Study on Physical Properties of Polyphenylene Sulfide Composites with Variothermal Mold Temperatures

Cited by 3 publications

References 0 publications

The Influence of Thermal Parameters on the Self-Nucleation Behavior of Polyphenylene Sulfide (PPS) during Secondary Thermoforming

The Influence of Thermal Parameters on the Self-Nucleation Behavior of Polyphenylene Sulfide (PPS) during Secondary Thermoforming

Polyphenylene sulfide-coated wrench composites by nanopinning effect

Development of a Lightweight Brake Piston for Passenger Car

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