Experimental study on the surface characteristics of Pd-based bulk metallic glass

Zhang, Xiang; Sun, Bingli; Zhao, Na; Li, Qian; Hou, Jianhua; Feng, Wen

doi:10.1016/j.apsusc.2014.09.189

Cited by 13 publications

(4 citation statements)

References 36 publications

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“…Contact angle analysis during wetting has been extensively studied and reviewed in literature with regards to static and dynamic spreading, solid surface tension and surface heterogeneities [4][5][6][7][8][9]. Specifically for wetting of molten polymers, studies have been done on glass substrates, bulk metallic glasses, tool steel surfaces, coatings and vulcanized rubbers by direct contact angle measurements to understand wetting behavior close-to-processing conditions [10][11][12][13][14]. When topographic heterogeneity applies, it is important that the molten polymer is able to fully wet the rough surface as this increases contact area promoting further physical or chemical adhesion mechanisms [4,13,15].…”

Section: Introductionmentioning

confidence: 99%

Reactive wetting of polyethylene on ethylene-propylene-diene terpolymer

Laing

Seveno

Keyzer

et al. 2021

Colloid and Interface Science Communications

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Section: Introductionmentioning

confidence: 99%

Reactive wetting of polyethylene on ethylene-propylene-diene terpolymer

Laing

Seveno

Keyzer

et al. 2021

Colloid and Interface Science Communications

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“…In our previous work, we investigated the surface characteristics of polymer melts and BMG to provide technical supports for the parameter optimization of micro‐molding of polymer part . We also systematically studied the micro‐molding process of a Zr‐based BMG with hot embossing (HE) .…”

Section: Introductionmentioning

confidence: 99%

Modeling and experimental investigation of polymer micropart demolding from a Zr‐based bulk metallic glass mold

Zhang

Wang

et al. 2019

Polymer Engineering & Sci

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Demolding is a necessary process in polymer micro molding, which requires energy for fracture of the bonds between the mold and the polymer. This often leads to structural defects due to an inappropriate combination of process parameters, including demolding temperature, embossing force or injection pressure, separation rate, and separation mode. In this article, we focus on the theoretical analysis and experimental optimization of the process parameters for polymer micro‐part demolding from a zirconium (Zr)‐based bulk metallic glass mold. We developed a theoretical model to predict the demolding work, in which we considered the effects of sidewall friction combined with deformation and adhesion. We also optimized the parameters for the demolding process based on the Taguchi method. The experimental results showed that the embossing force and the separation mode had significant effects on the demolding work of hot embossing. We determined the optimum process parameters and found that with these parameters the demolding work could be decreased to 10.36 mJ in this case. POLYM. ENG. SCI., 59:2202–2210, 2019. © 2019 Society of Plastics Engineers

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“…studied the effect of coatings in polymer processing using the same technique . A few studies also studied the wetting behavior of polymer melts on substrates to improve the replication in microinjection molding . Compared to other techniques like the solubility method, frequently used for testing compatibility in blends, this technique mirrors better the real injection molding process because of the high temperatures used .…”

Section: Introductionmentioning

confidence: 99%

Wetting measurements as a tool to predict the thermoplastic/thermoset rubber compatibility in two‐component injection molding

Bex

Seveno

Keyzer

et al. 2017

J of Applied Polymer Sci

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Recently a novel two-component injection molding process has been developed combining thermoplastics with thermoset rubbers. Since the adhesion strength between the two materials strongly depends on the combination of a specific thermoplastic and a thermoset rubber, there is a need to predict their compatibility, defined as the formation of a strong interface. In this study, the wetting behavior of molten thermoplastics on rubber substrates is used to predict their compatibility since wetting is an essential step in the formation of a strong interface. Contact angle measurements at high temperatures showed that the wetting of polypropylene and polyethylene is the best in combination with ethylene propylene diene monomer rubber while nitrile rubber is best wetted by polycarbonate. The subsequent two-component injection molding tests confirm that it is possible to combine these materials. Material combinations with a poor wetting behavior on the other hand are not suitable for two-component injection molding. V C 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46046.

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Experimental study on the surface characteristics of Pd-based bulk metallic glass

Cited by 13 publications

References 36 publications

Reactive wetting of polyethylene on ethylene-propylene-diene terpolymer

Reactive wetting of polyethylene on ethylene-propylene-diene terpolymer

Modeling and experimental investigation of polymer micropart demolding from a Zr‐based bulk metallic glass mold

Wetting measurements as a tool to predict the thermoplastic/thermoset rubber compatibility in two‐component injection molding

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