Effects of melt temperature and hold pressure on the tensile and fatigue properties of an injection molded talc-filled polypropylene

Zhou, Yuanxin; Mallick, P. K.

doi:10.1002/pen.20301

Cited by 34 publications

(28 citation statements)

References 16 publications

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“…However, increasing the holding pressure from 80 to 85 bar decreased tensile strength. It was found that the strength of talc-filled PP improved with increased holding pressure [27]. The highest tensile strength values were obtained at the highest injection pressure for virgin and recycled blends, especially for recycled samples-as injection pressure increased, tensile strength values also increased.…”

Section: S=n Analysismentioning

confidence: 85%

Influences of Injection Conditions on Strength Properties of Recycled and Virgin PBT/PC/ABS

Kuram

Timur

Özçelik

et al. 2014

Materials and Manufacturing Processes

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Effect of conditions on the rheological and mechanical properties of virgin and recycled poly(butylene terephthalate)/polycarbonate/ acrylonitrile-butadiene-styrene (PBT/PC/ABS) blends was investigated in injection molding by using Taguchi's experimental design. PBT, PC, and ABS polymers were compounded in an extruder to obtain ternary blends. Blend was recycled five times. Injection pressure, holding pressure, and injection temperature were taken into consideration as the input. Ratio of signal-to-noise (S/N) was employed to determine whether optimum conditions of control inputs could be used to achieve the highest properties. Analysis of variance was used to determine how inputs affect outputs.

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Section: S=n Analysismentioning

confidence: 85%

Influences of Injection Conditions on Strength Properties of Recycled and Virgin PBT/PC/ABS

Kuram

Timur

Özçelik

et al. 2014

Materials and Manufacturing Processes

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“…If there were mineral fillers, flow properties could be affected by the interaction between particles and the interaction between particles and polymer melt. The interaction between polymer melt and rough surface of particles at lower filler loadings played an important role in reduction of flow ability and increasing viscosity, so the flow ability decreased and viscosity increased . Although MFI values of PP composites filled with zeolite (average diameter 225 μm) modified with epoxy silane were higher than that of neat PP, these composites displayed lower MFI values compared to unmodified samples.…”

Section: Resultsmentioning

confidence: 99%

“…However, it is brittle at low temperatures and the lack of sufficient stiffness restricts its versatile applications. Inorganic fillers such as mica, talc, silica, and calcium carbonate are added to expand the engineering use and to improve its mechanical properties .…”

Section: Introductionmentioning

confidence: 99%

Effect of clinoptilolite filler on the physical and mechanical properties of polypropylene

Kodal

Demirhan

2013

Polymer Composites

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This study aims to investigate the mechanical and physical properties of polypropylene (PP) filled by natural zeolite. For this purpose, a natural zeolite (at 1–6 wt% filler loadings) with two different particle sizes was used. Two different kinds of silane coupling agents (3‐aminopropyltriethoxysilane, GAPTES and 3‐glycidoxypropyltrimethoxysilane, GPTMS) at three different volume ratios were used to improve the zeolite compatibility with PP and to improve the mechanical properties of composites. Fillers and PP were compounded with a twin screw extruder, and the composites were moulded with injection moulding press. The samples were subjected to mechanical tests (i.e., impact and tensile tests) and physical tests (i.e., hardness, density, and melt flow index, MFI). The physical test results showed that the levels of hardness and density of both unmodified and modified zeolite‐filled PP composites were higher compared with neat PP. The MFI values of composites were decreased by increasing zeolite loading level. Composites including GAPTES modified zeolite showed improved yield strength, impact strength and stiffness compared with composites filled with unmodified zeolite particles. POLYM. COMPOS. 34:1396–1403, 2013. © 2013 Society of Plastics Engineers

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“…For a given material (e.g., polypropylene, PP), the definition and combination of the molding parameters induce a specific morphology across the thickness and along the entire domain of the part [1][2][3][4][5][6]. Also, and as a result of the developed morphology, the molding parameters will determine the mechanical response of the material [7][8][9][10][11][12]. Under well-defined service conditions, namely temperature, load case and strain rate, the mechanical performance of an injection molded part is basically a result of the fundamental molecular nature plus the process induced morphology [13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Comprehensive study on the relationships between the processing, the microstructure, and mechanical properties of injection molded polypropylenes

Barbosa

Simões

Franzen

et al. 2017

Polymer Engineering & Sci

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The relationship between the morphologies of different injection molded polypropylenes and their tensile properties measured at high strain rate were investigated. A threefold systematic analysis is proposed by establishing the following relationships: (i) processing‐morphology; (ii) processing‐mechanical properties; and (iii) morphology‐mechanical properties. Experimental techniques were used to assess the structural heterogeneity of the moldings, namely: polarized light microscopy (skin thickness), wide‐angle X‐ray scattering (crystallinity, molecular orientation, and polymorphism of the skin layer), and differential scanning calorimetry (bulk crystallinity). High velocity tensile tests (1 m/s) were recorded by a high speed camera that runs 20k frames per second. The influence of multiple processing variables on the morphology and properties was studied adopting a structured statistical approach by means of two statistical tools: analysis of variance and response surface methodology. The most important molding variables and their interactions were identified. Straightforward relationships between the morphology and the tensile properties were established by fitting the experimental data to polynomial equations, using a least‐square minimization procedure. The melt temperature was identified as the most significant variable for the development of the morphologies and the mechanical response of the moldings. The skin thickness, its crystallinity and molecular orientation (flow direction) influence, to a certain degree, the tensile properties of the materials. POLYM. ENG. SCI., 58:E215–E225, 2018. © 2017 Society of Plastics Engineers

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Effects of melt temperature and hold pressure on the tensile and fatigue properties of an injection molded talc-filled polypropylene

Cited by 34 publications

References 16 publications

Influences of Injection Conditions on Strength Properties of Recycled and Virgin PBT/PC/ABS

Influences of Injection Conditions on Strength Properties of Recycled and Virgin PBT/PC/ABS

Effect of clinoptilolite filler on the physical and mechanical properties of polypropylene

Comprehensive study on the relationships between the processing, the microstructure, and mechanical properties of injection molded polypropylenes

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