Polypropylene/silica micro‐ and nanocomposites modified with poly(styrene‐b‐ethylene‐co‐butylene‐b‐styrene)

Pustak, Anđela; Denac, Matjaž; Leskovac, Mirela; Švab, Iztok; Musil, Vojko; Šmit, Ivan

doi:10.1002/app.41486

Cited by 20 publications

(5 citation statements)

References 45 publications

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“…In recent years, much attention has been focused on polymer composites based on inorganic filler (including silica) [1][2][3] and lignin [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Nucleation ability of advanced functional silica/lignin hybrid fillers in polypropylene composites

Borysiak

Kłapiszewski

Bula

et al. 2016

J Therm Anal Calorim

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Novel advanced functional silica/lignin hybrid fillers were synthesized for the purpose of their application in composites with polypropylene. The use of lignin for the production of hybrid fillers is justified due to the advantages such as reduction in cost of products, improvement in biodegradability as well as antioxidant and antimicrobial properties. The study encompasses an analysis of the dispersive and morphological properties of the hybrid fillers, and investigations of phase transitions and the supermolecular structure of the composites by means of differential scanning calorimetry, polarized light microscopy, and X-ray diffractometry. The nucleation activity of the hybrid fillers was found to be strongly correlated with the chemical composition of the fillers, and their dispersive properties and porous structure characteristics. Furthermore, the particle size and area surface of the hybrid fillers play an important role in the development of polymorphic varieties of the polypropylene matrix. The study also discusses the mechanism of the formation of the b-PP variety and the transcrystalline structure in the context of the nucleation ability of the hybrid fillers. The investigations are very significant because they address the impact of the actual physicochemical parameters of the hybrid fillers on the nucleation ability and structure of composite materials.

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“…In recent years, much attention has been focused on polymer composites based on inorganic filler (including silica) [1][2][3] and lignin [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Nucleation ability of advanced functional silica/lignin hybrid fillers in polypropylene composites

Borysiak

Kłapiszewski

Bula

et al. 2016

J Therm Anal Calorim

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“…It seems that the incorporation of the BSP improves the tensile strength of iPP but reduces the toughness leading to poorer impact strength. 45 It is also noticed that iPP/2 wt% BSP composites were brittle compared to the composites with less BSP weight fraction or when compared with the neat iPP and iPP/D 2 W composites.…”

Section: Mechanical Properties Of Ipp Compositesmentioning

confidence: 98%

Thermal and mechanical properties of biodegradable isotactic polypropylene

Mubarak

2020

Journal of Thermoplastic Composite Materials

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In this study, the effects of two different biodegradable plastic additives on the thermal and mechanical properties of isotactic polypropylene were investigated, analyzed, and presented. Biosphere biodegradable plastic additive and another oxidative biodegradable plastic additive, D2W, were used in 0.25, 0.5, 1.0, 1.5, and 2.0 wt% to prepare two sets of isotactic polypropylene composites. Differential scanning calorimeter and optical polarized light microscope were used to analyze the obtained composites thermally while the mechanical properties of these composites were studied by conducting tensile and impact testing. The morphological results reveal that only monoclinic α spherulites were obtained when the polypropylene crystallizes isothermally from the melt, it was found that both biodegradable plastic additives used decreases the size of the spherulites and increases their densities per unit volume. The incorporation of the Biosphere within the polypropylene matrix raises the crystallization temperature while the existence of D2W within the matrix delays the crystallization process. The addition of 2 wt% of Biosphere allows polypropylene to crystallize at about 13°C higher than neat polypropylene. It has been found that the addition of the biosphere increases Young’s modulus, while decreases the yield strength, the elongation at break, and the impact strength. On the other hand, D2W as an oxidative biodegradable plastic additive increases the elongation at break and the impact strength while decreases the yield strength and Young’s modulus.

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“…As a typical thermoplastic elastomer (TPE), poly (styrene-ethylene-butylene-styrene) (SEBS) triblock copolymer is soft, nontoxic, transparent, and high elastic. 8,9 However, the strong entanglement of the SEBS molecular chain makes it have a higher viscosity, which affects its molding process. Polypropylene (PP) has the advantages of rich sources, simple synthesis process, low price, and good processability.…”

Section: Introductionmentioning

confidence: 99%

Injection molding and shear‐induced stress simulation of poly (styrene‐ethylene‐butylene‐styrene) and polypropylene blends

Chen

Yang

et al. 2022

J of Applied Polymer Sci

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In this article, the structure and rheological properties of poly (styrene‐ethylene‐butylene‐styrene) (SEBS) triblock copolymer blends are analyzed. The influence of polypropylene content on the three SEBS blends was discussed, the viscoelastic response and phase structure evolution during injection molding were studied. According to the capillary flow test data, the least square method is used to fit the viscosity parameters of the cross‐WLF model. The filling length of the spline was tested by adjusting the injection molding process parameters, and its accuracy was verified by comparing the filling simulation with the experimental results. Numerical simulation is used to predict the shear rate distribution of injection‐molded samples, and the shear sensitivity and residual stress of SEBS blends with different phase structures are analyzed. Based on the phase structure analysis and rheological properties, this article predicts the filling properties of triblock copolymer composites, which can be used to construct the flow‐induced structure–property relationship of complex polymer blends.

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Polypropylene/silica micro‐ and nanocomposites modified with poly(styrene‐b‐ethylene‐co‐butylene‐b‐styrene)

Cited by 20 publications

References 45 publications

Nucleation ability of advanced functional silica/lignin hybrid fillers in polypropylene composites

Nucleation ability of advanced functional silica/lignin hybrid fillers in polypropylene composites

Thermal and mechanical properties of biodegradable isotactic polypropylene

Injection molding and shear‐induced stress simulation of poly (styrene‐ethylene‐butylene‐styrene) and polypropylene blends

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