Assessment of the Shrinkage and Ejection Forces of Reinforced Polypropylene Based on Nanoclays and Short Glass Fibre

In this study the influence of nanoclay and glass fibre in the shrinkage and ejection forces in polypropylene matrix in tubular parts moulded by injection moulding were analysed. An instrumented mould was used to measure the part surface temperature and ejection forces in tubular parts. The materials used were a polypropylene homopolymer Domolen 1100L nanoclay for polyolefin nanocomposites P-802 Nanomax in percentages of 2%, 6% and 10% and a polypropylene homopolymer with content of 10% of glass fibre Domolen P1-013-V10-N and 30% of glass fibre Domolen P1-102-V30-N with 2% of nanoclay. The shrinkage and ejection forces were analysed. The results show that the incorporation of nanoclays decreases the shrinkage and ejection forces whereas glass fibre decreases the shrinkage and increase ejection forces due to the increase of the elastic modulus. The nanoclays decrease the ejection force when compared with glass fibre and pure PP. The effects of nanoclays are less pronounced than those of glass fibre. The effect of the mould temperatures on the ejection forces in the mouldings produced with the mentioned materials were also analysed. The ejection force decreases with the increase of the temperature of the mould.

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Sepiolite as replacement of short glass fibre in polyamide composites for injection moulding applications

Applied Clay Science ◽

10.1016/j.clay.2018.06.006 ◽

2018 ◽

Vol 162 ◽

pp. 129-137 ◽

Cited By ~ 6

Author(s):

Manuel Herrero ◽

Karina Núñez ◽

Raúl Gallego ◽

Juan Carlos Merino ◽

José María Pastor

Keyword(s):

Glass Fibre ◽

Injection Moulding ◽

Short Glass Fibre ◽

Short Glass

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Ways of Comparation of the Fibre Orientation in Injection Moulding Parts

Research Papers Faculty of Materials Science and Technology Slovak University of Technology ◽

10.2478/rput-2014-0016 ◽

2014 ◽

Vol 22 (341) ◽

pp. 109-114 ◽

Cited By ~ 1

Author(s):

Lukáš Likavčan ◽

Maroš Martinkovič ◽

Jozef Bílik ◽

Miroslav Košík

Keyword(s):

Numerical Simulation ◽

Glass Fibre ◽

Experimental Verification ◽

Injection Moulding ◽

Fibre Orientation ◽

Simulation Software ◽

Experimental Result ◽

Short Glass Fibre ◽

Reinforced Thermoplastics ◽

Short Glass

Abstract The fibre orientation in short fibre reinforced thermoplastics depends on injection moulding technology parameters. The aim of this paper is to propose possibilities for comparing fibre orientation of the real sample and the result from simulation software. Fibre orientation of selected injection moulding part is simulated. In some selected points secondorder tensor of orientation was estimated. Stereological metallography was used for possibility of comparison these results with experimental ones. An experimental result of estimation of degree of fibre orientation is described. The use of stereological metallography allows very simple and effective experimental estimation of short glass fibre orientation, which can be used for experimental verification of numerical simulation model, which can be optimized to obtained coincidence with experiments.

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Possibilities of Evaluation of the Fibre Orientation in Injection Moulding Parts

Technological Engineering ◽

10.2478/teen-2013-0018 ◽

2013 ◽

Vol 10 (2) ◽

pp. 29-31

Author(s):

Maroš Martinkovič ◽

Lukáš Likavčan

Keyword(s):

Numerical Simulation ◽

Glass Fibre ◽

Injection Moulding ◽

Fibre Orientation ◽

Simulation Software ◽

Experimental Result ◽

Order Tensor ◽

Short Glass Fibre ◽

Reinforced Thermoplastics ◽

Short Glass

Abstract The fibre orientation in short fibre reinforced thermoplastics depends on injection moulding technology parameters. The aim of this paper is to propose possibilities for comparing fibre orientation of the real sample and the result from simulation software. Fibre orientation of selected injection moulding part is simulated. In some selected points second-order tensor of orientation was estimated. Stereological metallography was used for possibility of comparison these results with experimental ones. An experimental result of estimation of degree of fibre orientation is described. The use of stereological metallography allows very simple and effective experimental estimation of short glass fibre orientation, which can be used for experimental verification of numerical simulation model, which can be optimized to obtained coincidence with experiments.

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Fatigue failure of short glass fibre reinforced PA 6.6 structural pieces for railway track fasteners

Engineering Failure Analysis ◽

10.1016/j.engfailanal.2005.01.016 ◽

2006 ◽

Vol 13 (2) ◽

pp. 182-197 ◽

Cited By ~ 25

Author(s):

J.A. Casado ◽

I. Carrascal ◽

J.A. Polanco ◽

F. Gutiérrez-Solana

Keyword(s):

Fatigue Failure ◽

Glass Fibre ◽

Railway Track ◽

Short Glass Fibre ◽

Glass Fibre Reinforced ◽

Short Glass

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Effect of Hygrothermal Ageing on the Tensile Properties of Short Glass Fibre Reinforced Nylon 6.6

Polymers and Other Advanced Materials ◽

10.1007/978-1-4899-0502-4_14 ◽

1995 ◽

pp. 133-140 ◽

Cited By ~ 1

Author(s):

Z. A. Mohd Ishak ◽

U. S. Ishiaku ◽

C. P. Tan

Keyword(s):

Tensile Properties ◽

Glass Fibre ◽

Hygrothermal Ageing ◽

Short Glass Fibre ◽

Glass Fibre Reinforced ◽

Short Glass

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Behaviour of Short Glass Fibre Reinforced Plastics (GRP) Channels at Elevated Temperatures

Thin-Walled Structures ◽

10.1201/9781351077309-73 ◽

2018 ◽

pp. 643-649

Author(s):

P M H Wong ◽

Y C Wang

Keyword(s):

Glass Fibre ◽

Elevated Temperatures ◽

Reinforced Plastics ◽

Short Glass Fibre ◽

Glass Fibre Reinforced ◽

Short Glass ◽

Glass Fibre Reinforced Plastics

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Processing and Testing of Reinforced PA66 Based Composites

Materials ◽

10.3390/ma14237299 ◽

2021 ◽

Vol 14 (23) ◽

pp. 7299

Author(s):

Alejandro Pereira ◽

Alberto Tielas ◽

Teresa Prado ◽

Maria Fenollera ◽

José Antonio Pérez

Keyword(s):

Composite Materials ◽

Glass Fibre ◽

High Rate ◽

Injection Process ◽

Production Processes ◽

Short Glass Fibre ◽

The Matrix ◽

Plastic Injection ◽

Short Glass ◽

Resistance Tests

The new requirements in different sectors, such as aerospace, automotive and construction, for lightweight materials have led to an increase in demand for composite materials suitable for use in high rate production processes, such as plastic injection. This makes it necessary to look for matrices and reinforcements that, in addition to being compatible with each other, are also compatible with the injection process. It is in this area of research where the work presented here arises. To meet the two requirements mentioned above, this study contemplates a battery of composite materials obtained by combining PA66 and fiberglass, in different proportions and configuration, both for the preparation of the matrix and for reinforcement. For the elaboration of the matrix, two options have been evaluated, PA66 and PA66 reinforced at 35% with short glass fibre. To obtain reinforcement, six different options have been evaluated; two conventional fiberglass fabrics (each with different density) and four hybrid fabrics obtained from the previous ones by adding PA66 in different configurations (two over-stitched fabrics and two other fabrics). The different composite materials obtained were validated by means of the corresponding adhesion, peeling and resistance tests.

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