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Co‐injection Molding: Effect Of Processing On Material Distribution And Mechanical Properties Of A Sandwich Molded Plate

R. Seldén
Published 2000 · Materials Science

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The effect of molding parameters on material distribution and mechanical properties of co-injection molded plates has been studied using experimental design. The plates were molded with a polyamide 6 (PA 6) as skin and a 20% glass fiber-reinforced polybutyleneterephtalate (PBTP) as core. Five molding parameters—injection velocity, mold temperature, skin and core temperature, and core content—were varied in two levels. The statistical analysis of the results showed that three parameters—Injection velocity, core temperature, and core content—were the most significant in affecting skin/core distribution. A high core temperature was the most significant variable promoting a constant core thickness, while core content was the most significant factor influencing a breakthrough of the core. Mechanical properties, such as flexural and impact strength showed a high correlation with the skin/core distribution. The slight increase in falling weight impact strength of the sandwich molded plates, compared to similar plates molded from PBTP only, could be explained from the failure process, which initiates in the brittle core and propagates through the ductile skins.
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This paper is referenced by
10.1002/PEN.20852
Real-time diagnosis of co-injection molding using ultrasound
Chin-Chi Cheng (2007)
10.1007/s10965-013-0212-7
Cylindritic structures of isotactic polypropylene molded by sequential co-injection molding
G. Wang (2013)
10.1016/J.POLYMER.2011.06.004
Cylindritic structures of high-density polyethylene molded by multi-melt multi-injection molding
K. Zhang (2011)
10.1515/polyeng-2014-0339
Visualization and simulation of filling process of simultaneous co-injection molding based on level set method
Q. Liu (2015)
10.1002/MAME.201300189
Co-Injection Molded New Green Composites from Biodegradable Polyesters and Miscanthus Fibers
K. Zhang (2014)
10.1002/PC.20084
Study on mechanical properties and material distribution of sandwich plaques molded by co‐injection
D. A. Messaoud (2005)
10.1080/03602559.2011.578288
Effects of Process Parameters on the Skin/Core Distribution in Co-Injection: Experiments and Simulations Using a Simple Geometry
F. B. Vangosa (2011)
10.1002/PEN.23783
Shear field in the mold cavity of multimelt multi‐injection molding revealed by the morphology distribution of a model polymer blend
J. Wu (2014)
10.1002/PC.20149
Properties enhancement of short glass fiber‐reinforced thermoplastics via sandwich injection molding
S. Patcharaphun (2005)
10.1177/147776060602200302
In-Mould Painting by Spraying Thermoset Powder Coating into a Closed Mould, Followed by Standard Thermoplastic Injection Moulding: Part 1: Introducing the IN-SPIRE Process
V. Goodship (2006)
10.1515/polyeng-2014-0369
Experimental study of penetration interfaces in the overflow fluid-assisted co-injection molding process
Tangqing Kuang (2015)
10.1002/APP.42866
Experimental study on the penetration interfaces of pipes with different cross-sections in overflow water-assisted coinjection molding
Tangqing Kuang (2016)
10.1504/ijmpt.2016.073627
Numerical simulation and experimental study on physical mechanism in multiple component moulding
C. Huang (2015)
10.1081/MB-120013071
INSTRUMENTED FALLING WEIGHT IMPACT OF COINJECTION-MOLDED MULTIPOLYPROPYLENE SANDWICH PLAQUES CONTAINING β-PHASE POLYPROPYLENE CORE
J. Karger-Kocsis (2002)
10.4028/www.scientific.net/AMR.189-193.2939
Effect of Molding Parameters on the Interface Morphology of Metal Co-Injection Molding
Hao He (2011)
10.1007/978-3-030-10579-2_8
Advances in near net shape polymer manufacturing through microcellular injection moulding
G. Llewelyn (2019)
10.1002/PEN.24009
Numerical simulation of the sequential coinjection molding process based on level set method
Q. Liu (2015)
10.1007/s12588-017-9182-7
Improvement on the surface quality of microcellular injection molded parts using microcellular co-injection molding with the material combinations of PP and PP-GF
E. Suhartono (2017)
10.1016/J.POWTEC.2016.10.016
Interface development and numerical simulation of powder co-injection moulding. Part II. Numerical simulation and experimental verification
J. Lou (2017)
10.1002/APP.11948
Interface development and encapsulation in simultaneous coinjection molding of disk. II. Two-dimensional simulation and experiment
C. Li (2003)
10.3139/9783446433731.021
Co-injection Molding of Polyme
A. Isayev (2009)
10.1016/J.POWTEC.2016.10.015
Interface development and numerical simulation of powder co-injection moulding. Part. I. Experimental results on the flow behaviour and die filling process
J. Lou (2017)
10.3139/9783446433731.004
Non-Conventional Injection Molds
A. Cunha (2009)
10.3724/SP.J.1105.2011.10325
CRYSTAL MORPHOLOGY OF HDPE MOLDED BY MULTI-FLUID MULTI-INJECTION MOLDING: CRYSTAL MORPHOLOGY OF HDPE MOLDED BY MULTI-FLUID MULTI-INJECTION MOLDING
K. Zhang (2011)
10.1016/S0032-3861(03)00549-4
Development and design of double-layer co-injection moulded soy protein based drug delivery devices
C. Vaz (2003)
10.1007/s12588-017-9190-7
Improvements on the tensile properties of microcellular injection molded parts using microcellular co-injection molding with the material combinations of PP and PP-GF
Edward Suhartono (2017)
10.3390/polym12010024
Investigation on the Fiber Orientation Distributions and Their Influence on the Mechanical Property of the Co-Injection Molding Products
C. Huang (2019)
10.1179/174328906X146522
Polymeric materials for impact and energy dissipation
J. Viana (2006)
10.1179/174328907X171217
In mould painting using thermoset powder coating and thermoplastic substrate in closed tool injection moulding
V. Goodship (2007)
10.4028/www.scientific.net/AMR.97-101.1116
An Experimental Study of Metal Co-Injection Molding with Sequential Injection
Hao He (2010)
10.1002/APP.41278
Study of the effect of processing conditions on the co-injection of PBS/PBAT and PTT/PBT blends for parts with increased bio-content
Matthew Zaverl (2015)
10.1002/PEN.23871
Birefringence and interface in sequential co‐injection molding of amorphous polymers: Simulation and experiment
N. Kim (2015)
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