Control of polymer properties by melt vibration technology: A review

Ibar, J. P.

doi:10.1002/pen.10161

Cited by 144 publications

(86 citation statements)

References 31 publications

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“…At low pressure poor transmission of energy takes place, and consequently, fabric color strength does not ability to the appropriate akin and the fiber acclimatization is as well not maintained due to abridgement of constraint. Under acceptable pressure, fibers are aseptic from shrinking and loosing acclimatization consequently, application the fiber strength and announcement able bonding [16]. …”

Section: Effect Of Pump Pressure On Color Strength (K/s)mentioning

confidence: 99%

A novel route to process rationalisation on cellulose dyeing

Pervez

Hoque

et al. 2017

MATEC Web Conf.

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Abstract. This research work presents an altercation on dyeing machine controlling parameters, particularly in terms of the relation between the effect of different factors i.e. reel speed (m min -1 ), cycle time (min), pump pressure (%) and nozzle position (%) on color strength (K/S) property of different type's cotton fabric, so only the process controlling parameters were varied; the material used for the study remained the aforementioned throughout. The optimum reel speed, cycle time, pump pressure and nozzle position were found to be 240 m min -1 , 2.5 min, 60% and 70% respectively for winch dyeing machine with respect to cellulose materials. This work is useful in selecting optimum values of various controlling parameters that would not alone approve the process rationalisation but as well reduce the fabric consumption and advance the superior of the dyed fabric on applied imminence.

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Section: Effect Of Pump Pressure On Color Strength (K/s)mentioning

confidence: 99%

A novel route to process rationalisation on cellulose dyeing

Pervez

Hoque

et al. 2017

MATEC Web Conf.

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“…With this problem in mind, the concept of vibration-assisted injection molding has been developed [1][2]. The main merit is enable theological behavior of polymer melt.…”

Section: Introductionmentioning

confidence: 99%

Effect of Vibration Parameters on Properties of Polypropylene in Dynamic Plasticizing Process

Liu¹,

Li²

2016

Proceedings of the 2016 3rd International Conference on Materials Engineering, Manufacturing Technology and Control

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Abstract. The Polypropylene samples were molded by novel hydraulic vibration injection molding machine. The effects of vibration amplitude and frequency on physical and mechanical properties of PP and power consumption in the plasticizing process were studied. The results show that in the case of imposing vibration under otherwise identical conditions, the tensile strength of PP sample increases by 9.8%, the impact strength increases by 13.8%, the density increases by 0.3%, while the power consumption of the injection molding machine decreases by 6.6%.

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“…A detailed review on various vibration technologies is given by Ibar. 24 It has been noted that the mixing in a vibration field could improve the homogeneity, and hence the mechanical properties of blends. 24,29 Among the extensive studies on PP as well as its blends, investigations on the blends of PP/ UHMWPE are meager.…”

mentioning

confidence: 99%

“…24 It has been noted that the mixing in a vibration field could improve the homogeneity, and hence the mechanical properties of blends. 24,29 Among the extensive studies on PP as well as its blends, investigations on the blends of PP/ UHMWPE are meager. In the present work, a novel internal mixer capable of vibration blending is introduced and is used to modify PP with UHMWPE.…”

mentioning

confidence: 99%

“…17,23 The type and the intensity of the flow in the mixing processes significantly influence the morphology of the blends. 20,24 It has been found that vibration affects diffusion and rate-sensitive processes 24 such as crystallization dynamics 25 and blending. 26 In polymer processing, many prospective vibration technologies such as ultrasonic vibration 27 or mechanical vibration 27,28 have been used.…”

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confidence: 99%

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Modification of polypropylene by melt vibration blending with ultra high molecular weight polyethylene

Wang¹,

Zhou

Zhang

et al. 2002

Adv Polym Technol

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ABSTRACT:A novel vibration internal mixer was used to prepare polypropylene/ultra high molecular weight polyethylene PP/UHMWPE blends with two additional adjustable processing parameters (vibration frequency and vibration amplitude) as compared with those prepared in the steady mode. Microscopy, mechanical tests, and differential scanning calorimetry showed that vibration influenced the blend morphology and the product properties. The good phase homogeneity of the blends might be due to the variation of shear rate either spatially or temporally in blending. Additionally, the vibration internal mixer could be used to analyze the dependency of viscosity on the shear rate. Vibration enhanced the interpenetration of UHMWPE into PP and vice versa. Subsequently, the formed crystals of two components were connected, and there was epitaxy MODIFICATION OF POLYPROPYLENE BY MELT VIBRATION BLENDINGbetween PP and UHMWPE crystals. Moreover, the crystalline aggregates, with the amorphous UHMWPE, formed a complex network-like continuous structure, which improved the elongation ratio at the break and the yield strength. The higher the vibration frequency and/or the larger the vibration amplitude at a fixed average rotation speed of the mixer, the more significant these effects were. The larger amount of the connected crystals, especially of ␤ form of PP in the bulk ␣ form PP as well as with the continuous phase structure, led to a higher tensile properties of PP/UHMWPE vibration blended. C 2002 Wiley Periodicals, Inc.

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Control of polymer properties by melt vibration technology: A review

Cited by 144 publications

References 31 publications

A novel route to process rationalisation on cellulose dyeing

A novel route to process rationalisation on cellulose dyeing

Effect of Vibration Parameters on Properties of Polypropylene in Dynamic Plasticizing Process

Modification of polypropylene by melt vibration blending with ultra high molecular weight polyethylene

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