The Experts below are selected from a list of 39 Experts worldwide ranked by ideXlab platform
Manfred Pinnow - One of the best experts on this subject based on the ideXlab platform.
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high tenacity man made cellulose fibre reinforced thermoplastics injection moulding compounds with polypropylene and alternative matrices
Composites Part A-applied Science and Manufacturing, 2006Co-Authors: Johannes Ganster, H P Fink, Manfred PinnowAbstract:Abstract High-tenacity man-made cellulose filament Yarn (rayon tyre Cord Yarn) has been used to reinforce polypropylene (PP), polyethylene, high impact polystyrene (HIPS), and poly (lactic acid) (PLA) for injection moulding applications. Highly homogeneous composites are obtained with the pultrusion compounding method developed. For PP the influence of coupling agent, fibre weight fraction, fibre cut length and PP type on basic mechanical properties of the composites have been studied. For a fibre load of 30 wt%, typical values for tensile strength, modulus, Charpy unnotched and notched impact strength are 80 MPa, 3.5 GPa, 85 kJ/m2, and 12 kJ/m2, respectively. A high impact resistance level is maintained also at low temperatures where the matrix material becomes brittle. For the other matrix materials, similar reinforcing effects are observed, except for the impact behaviour of HIPS, where the reinforcing fibres interfere with the impact modification of the matrix polymer. In contrast, the impact characteristics of PLA are drastically improved increasing the unnotched and notched Charpy strengths by 380% and 200%, respectively. With the property level obtained, cellulose man-made fibre reinforced composites prove to be an alternative to short glass fibre reinforced plastics.
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High-tenacity man-made cellulose fibre reinforced thermoplastics – Injection moulding compounds with polypropylene and alternative matrices
Composites Part A: Applied Science and Manufacturing, 2006Co-Authors: Johannes Ganster, H P Fink, Manfred PinnowAbstract:Abstract High-tenacity man-made cellulose filament Yarn (rayon tyre Cord Yarn) has been used to reinforce polypropylene (PP), polyethylene, high impact polystyrene (HIPS), and poly (lactic acid) (PLA) for injection moulding applications. Highly homogeneous composites are obtained with the pultrusion compounding method developed. For PP the influence of coupling agent, fibre weight fraction, fibre cut length and PP type on basic mechanical properties of the composites have been studied. For a fibre load of 30 wt%, typical values for tensile strength, modulus, Charpy unnotched and notched impact strength are 80 MPa, 3.5 GPa, 85 kJ/m2, and 12 kJ/m2, respectively. A high impact resistance level is maintained also at low temperatures where the matrix material becomes brittle. For the other matrix materials, similar reinforcing effects are observed, except for the impact behaviour of HIPS, where the reinforcing fibres interfere with the impact modification of the matrix polymer. In contrast, the impact characteristics of PLA are drastically improved increasing the unnotched and notched Charpy strengths by 380% and 200%, respectively. With the property level obtained, cellulose man-made fibre reinforced composites prove to be an alternative to short glass fibre reinforced plastics.
Johannes Ganster - One of the best experts on this subject based on the ideXlab platform.
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Hybrid composites of jute and man-made cellulose fibers with polypropylene by injection moulding
Composites Part A-applied Science and Manufacturing, 2009Co-Authors: Mubarak Ali Khan, Johannes Ganster, H P FinkAbstract:Abstract A number of hybrid composites was made with jute, mercerised jute, and high tenacity man-made cellulose tyre Cord Yarn Cordenka of dissimilar ratios by a pultrusion process and subsequent injection moulding. Composites of jute, mercerised jute, and Cordenka were also made in order to compare the properties. The matrix material was a polypropylene/ethylene block copolymer (PP), and a maleic acid anhydride grafted PP (MAPP) was used as a coupling agent. The overall fiber contain was 25%. Mechanical properties such as tensile and bending strength, tensile and bending modulus, Charpy impact strength, and heat distortion temperature (HDT) were determined. High strength (>70 MPa) and excellent impact properties (>80 kJ/m 2 ) were achieved with pure Cordenka reinforcement. Partial substitution of jute instead of Cordenka leads to enhance stiffness properties of the composite as well as increased heat distortion temperature (HDT) values above 105 °C for all the tested compositions (25%, 50%, 75%, and 100% jute) and for an overall fiber load of 25%. On the other hand, impact strength decreases with increasing jute fraction down to 22 kJ/m 2 for pure jute. A good property balance is achieved for a composite with 25 wt.% jute and 75 wt.% Cordenka, maintaining impact strength of 79 kJ/m 2 . Mercerisation of the jute fibers gave moderate improvements in the composite properties. Very good fiber (both jute and Cordenka) matrix adhesion was observed by SEM.
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high tenacity man made cellulose fibre reinforced thermoplastics injection moulding compounds with polypropylene and alternative matrices
Composites Part A-applied Science and Manufacturing, 2006Co-Authors: Johannes Ganster, H P Fink, Manfred PinnowAbstract:Abstract High-tenacity man-made cellulose filament Yarn (rayon tyre Cord Yarn) has been used to reinforce polypropylene (PP), polyethylene, high impact polystyrene (HIPS), and poly (lactic acid) (PLA) for injection moulding applications. Highly homogeneous composites are obtained with the pultrusion compounding method developed. For PP the influence of coupling agent, fibre weight fraction, fibre cut length and PP type on basic mechanical properties of the composites have been studied. For a fibre load of 30 wt%, typical values for tensile strength, modulus, Charpy unnotched and notched impact strength are 80 MPa, 3.5 GPa, 85 kJ/m2, and 12 kJ/m2, respectively. A high impact resistance level is maintained also at low temperatures where the matrix material becomes brittle. For the other matrix materials, similar reinforcing effects are observed, except for the impact behaviour of HIPS, where the reinforcing fibres interfere with the impact modification of the matrix polymer. In contrast, the impact characteristics of PLA are drastically improved increasing the unnotched and notched Charpy strengths by 380% and 200%, respectively. With the property level obtained, cellulose man-made fibre reinforced composites prove to be an alternative to short glass fibre reinforced plastics.
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High-tenacity man-made cellulose fibre reinforced thermoplastics – Injection moulding compounds with polypropylene and alternative matrices
Composites Part A: Applied Science and Manufacturing, 2006Co-Authors: Johannes Ganster, H P Fink, Manfred PinnowAbstract:Abstract High-tenacity man-made cellulose filament Yarn (rayon tyre Cord Yarn) has been used to reinforce polypropylene (PP), polyethylene, high impact polystyrene (HIPS), and poly (lactic acid) (PLA) for injection moulding applications. Highly homogeneous composites are obtained with the pultrusion compounding method developed. For PP the influence of coupling agent, fibre weight fraction, fibre cut length and PP type on basic mechanical properties of the composites have been studied. For a fibre load of 30 wt%, typical values for tensile strength, modulus, Charpy unnotched and notched impact strength are 80 MPa, 3.5 GPa, 85 kJ/m2, and 12 kJ/m2, respectively. A high impact resistance level is maintained also at low temperatures where the matrix material becomes brittle. For the other matrix materials, similar reinforcing effects are observed, except for the impact behaviour of HIPS, where the reinforcing fibres interfere with the impact modification of the matrix polymer. In contrast, the impact characteristics of PLA are drastically improved increasing the unnotched and notched Charpy strengths by 380% and 200%, respectively. With the property level obtained, cellulose man-made fibre reinforced composites prove to be an alternative to short glass fibre reinforced plastics.
H P Fink - One of the best experts on this subject based on the ideXlab platform.
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Hybrid composites of jute and man-made cellulose fibers with polypropylene by injection moulding
Composites Part A-applied Science and Manufacturing, 2009Co-Authors: Mubarak Ali Khan, Johannes Ganster, H P FinkAbstract:Abstract A number of hybrid composites was made with jute, mercerised jute, and high tenacity man-made cellulose tyre Cord Yarn Cordenka of dissimilar ratios by a pultrusion process and subsequent injection moulding. Composites of jute, mercerised jute, and Cordenka were also made in order to compare the properties. The matrix material was a polypropylene/ethylene block copolymer (PP), and a maleic acid anhydride grafted PP (MAPP) was used as a coupling agent. The overall fiber contain was 25%. Mechanical properties such as tensile and bending strength, tensile and bending modulus, Charpy impact strength, and heat distortion temperature (HDT) were determined. High strength (>70 MPa) and excellent impact properties (>80 kJ/m 2 ) were achieved with pure Cordenka reinforcement. Partial substitution of jute instead of Cordenka leads to enhance stiffness properties of the composite as well as increased heat distortion temperature (HDT) values above 105 °C for all the tested compositions (25%, 50%, 75%, and 100% jute) and for an overall fiber load of 25%. On the other hand, impact strength decreases with increasing jute fraction down to 22 kJ/m 2 for pure jute. A good property balance is achieved for a composite with 25 wt.% jute and 75 wt.% Cordenka, maintaining impact strength of 79 kJ/m 2 . Mercerisation of the jute fibers gave moderate improvements in the composite properties. Very good fiber (both jute and Cordenka) matrix adhesion was observed by SEM.
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high tenacity man made cellulose fibre reinforced thermoplastics injection moulding compounds with polypropylene and alternative matrices
Composites Part A-applied Science and Manufacturing, 2006Co-Authors: Johannes Ganster, H P Fink, Manfred PinnowAbstract:Abstract High-tenacity man-made cellulose filament Yarn (rayon tyre Cord Yarn) has been used to reinforce polypropylene (PP), polyethylene, high impact polystyrene (HIPS), and poly (lactic acid) (PLA) for injection moulding applications. Highly homogeneous composites are obtained with the pultrusion compounding method developed. For PP the influence of coupling agent, fibre weight fraction, fibre cut length and PP type on basic mechanical properties of the composites have been studied. For a fibre load of 30 wt%, typical values for tensile strength, modulus, Charpy unnotched and notched impact strength are 80 MPa, 3.5 GPa, 85 kJ/m2, and 12 kJ/m2, respectively. A high impact resistance level is maintained also at low temperatures where the matrix material becomes brittle. For the other matrix materials, similar reinforcing effects are observed, except for the impact behaviour of HIPS, where the reinforcing fibres interfere with the impact modification of the matrix polymer. In contrast, the impact characteristics of PLA are drastically improved increasing the unnotched and notched Charpy strengths by 380% and 200%, respectively. With the property level obtained, cellulose man-made fibre reinforced composites prove to be an alternative to short glass fibre reinforced plastics.
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High-tenacity man-made cellulose fibre reinforced thermoplastics – Injection moulding compounds with polypropylene and alternative matrices
Composites Part A: Applied Science and Manufacturing, 2006Co-Authors: Johannes Ganster, H P Fink, Manfred PinnowAbstract:Abstract High-tenacity man-made cellulose filament Yarn (rayon tyre Cord Yarn) has been used to reinforce polypropylene (PP), polyethylene, high impact polystyrene (HIPS), and poly (lactic acid) (PLA) for injection moulding applications. Highly homogeneous composites are obtained with the pultrusion compounding method developed. For PP the influence of coupling agent, fibre weight fraction, fibre cut length and PP type on basic mechanical properties of the composites have been studied. For a fibre load of 30 wt%, typical values for tensile strength, modulus, Charpy unnotched and notched impact strength are 80 MPa, 3.5 GPa, 85 kJ/m2, and 12 kJ/m2, respectively. A high impact resistance level is maintained also at low temperatures where the matrix material becomes brittle. For the other matrix materials, similar reinforcing effects are observed, except for the impact behaviour of HIPS, where the reinforcing fibres interfere with the impact modification of the matrix polymer. In contrast, the impact characteristics of PLA are drastically improved increasing the unnotched and notched Charpy strengths by 380% and 200%, respectively. With the property level obtained, cellulose man-made fibre reinforced composites prove to be an alternative to short glass fibre reinforced plastics.
Parisa Teymouri - One of the best experts on this subject based on the ideXlab platform.
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Minimum reinforcement ratio in TRC panels for deflection hardening flexural performance
Construction and Building Materials, 2017Co-Authors: Mojdeh Zargaran, Nader Khajeh Ahmad Attari, Sakineh Alizadeh, Parisa TeymouriAbstract:The performance of textile reinforced concrete (TRC) was investigated with considering different parameters of fabric such as Yarn type, mesh size, and Yarn diameter. The fabric material was made of special Nylon Yarns called “tire Cord Yarn”. In addition, the effects of thickness and reinforcement ratio on the flexural performance and ultimate capacity of TRC composites were studied. Sixty-five specimens were tested under four point flexural tests and minimum reinforcement ratio to achieve deflection-hardening behavior was obtained experimentally. Analytical formulation was presented for minimum reinforcement ratio and verified with experimental results. The behavior of specimens indicated that ultimate strength of the reinforced composite with the same reinforcement ratio, increases with increasing Yarn Tex, and smaller mesh size improve the performance of samples with the deflection-hardening behavior. The experimental results showed that uncrack capacity of specimens raised by increasing reinforcement ratio, which could be due to shrinkage of Yarns in cement media that behave as pre-stressing for concrete. In addition, results showed that the effectiveness of twisted Yarns is about fifty percent lower than of the untwisted ones.
Mubarak Ali Khan - One of the best experts on this subject based on the ideXlab platform.
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Hybrid composites of jute and man-made cellulose fibers with polypropylene by injection moulding
Composites Part A-applied Science and Manufacturing, 2009Co-Authors: Mubarak Ali Khan, Johannes Ganster, H P FinkAbstract:Abstract A number of hybrid composites was made with jute, mercerised jute, and high tenacity man-made cellulose tyre Cord Yarn Cordenka of dissimilar ratios by a pultrusion process and subsequent injection moulding. Composites of jute, mercerised jute, and Cordenka were also made in order to compare the properties. The matrix material was a polypropylene/ethylene block copolymer (PP), and a maleic acid anhydride grafted PP (MAPP) was used as a coupling agent. The overall fiber contain was 25%. Mechanical properties such as tensile and bending strength, tensile and bending modulus, Charpy impact strength, and heat distortion temperature (HDT) were determined. High strength (>70 MPa) and excellent impact properties (>80 kJ/m 2 ) were achieved with pure Cordenka reinforcement. Partial substitution of jute instead of Cordenka leads to enhance stiffness properties of the composite as well as increased heat distortion temperature (HDT) values above 105 °C for all the tested compositions (25%, 50%, 75%, and 100% jute) and for an overall fiber load of 25%. On the other hand, impact strength decreases with increasing jute fraction down to 22 kJ/m 2 for pure jute. A good property balance is achieved for a composite with 25 wt.% jute and 75 wt.% Cordenka, maintaining impact strength of 79 kJ/m 2 . Mercerisation of the jute fibers gave moderate improvements in the composite properties. Very good fiber (both jute and Cordenka) matrix adhesion was observed by SEM.