Author: Society of Plastics Engineers. Polymer Modifiers and Additives Division
Publisher:
ISBN:
Category : Polymers and polymerization
Languages : en
Pages : 226
Book Description
Processing and Property Enhancement Utilizing Modifiers and Additives in Polymers
Author: Society of Plastics Engineers. Polymer Modifiers and Additives Division
Publisher:
ISBN:
Category : Polymers and polymerization
Languages : en
Pages : 226
Book Description
Publisher:
ISBN:
Category : Polymers and polymerization
Languages : en
Pages : 226
Book Description
Processing and Property Enhancement Utilizing Modifiers and Additives in Polymers
Author: Society of Plastics Engineers Staff
Publisher:
ISBN: 9780608171180
Category :
Languages : en
Pages : 226
Book Description
Publisher:
ISBN: 9780608171180
Category :
Languages : en
Pages : 226
Book Description
"Processing and Property Enhancement Utilizing Modifiers and Additives in Polymers"
Author:
Publisher:
ISBN:
Category : Polymeric composites
Languages : en
Pages : 226
Book Description
Publisher:
ISBN:
Category : Polymeric composites
Languages : en
Pages : 226
Book Description
Processing and Property Enhancement Utilizing Modifiers and Additives in Polymers
Processing and Property Enhancement Utilizing Modifers and Additives in Polymers
Author: Society of Plastics Engineers. Polymer Modifiers and Additives Division
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Polymer Modifiers and Additives
Author: Richard F. Grossman
Publisher: CRC Press
ISBN: 1482273756
Category : Technology & Engineering
Languages : en
Pages : 533
Book Description
"Outlines the benefits of using additives-individually or in combination-to modify the properties and processability of pure polymers, and discusses easy-to-understand theory and practical applications for immediate economic and performance improvements."
Publisher: CRC Press
ISBN: 1482273756
Category : Technology & Engineering
Languages : en
Pages : 533
Book Description
"Outlines the benefits of using additives-individually or in combination-to modify the properties and processability of pure polymers, and discusses easy-to-understand theory and practical applications for immediate economic and performance improvements."
Enhancing Polymers Using Additives and Modifiers II
Author:
Publisher: iSmithers Rapra Publishing
ISBN: 9781859570876
Category : Polymers
Languages : en
Pages : 64
Book Description
Publisher: iSmithers Rapra Publishing
ISBN: 9781859570876
Category : Polymers
Languages : en
Pages : 64
Book Description
High Modulus Polymers
Author: Zachariades
Publisher: CRC Press
ISBN: 1000103587
Category : Technology & Engineering
Languages : en
Pages : 542
Book Description
This book reflects understanding of property enhancement through development of molecular structure. It focuses on liquid crystalline and semicrystalline polymers that provide a state of the art knowledge of the molecular organizations.
Publisher: CRC Press
ISBN: 1000103587
Category : Technology & Engineering
Languages : en
Pages : 542
Book Description
This book reflects understanding of property enhancement through development of molecular structure. It focuses on liquid crystalline and semicrystalline polymers that provide a state of the art knowledge of the molecular organizations.
Polymer Modification with Multifunctional Additives and Unique Processing Methods
Author: Polina R. Ware
Publisher:
ISBN:
Category :
Languages : en
Pages : 159
Book Description
This dissertation describes the investigation of unconventional methods to enhance polymer properties either by using unique processing methods, such as solid-state deformation, or by using multifunctional additives that can simultaneously provide a number of property enhancements. The three main research areas of this dissertation are self-reinforced glassy thermosets, melt-processeable organic/inorganic thermoplastic elastomers and semi-crystalline thermoplastics with improved ductility due to a unique solid-state process treatment. Various thermosets, including epoxies, are used in systems with fibers or other additives to improve stiffness. However such systems are difficult to process due to increased viscosity. This work investigates a new method to reinforce thermoset materials with low molecular weight (LMW) crystallizable additives. Desoxyanisoin, which is a pre-cursor to a flame-retardant molecule 4,4'-bishydroxydesoxybenzoin that is engineered to promote char, is used as a LMW organic crystallizable compound. At processing temperatures, desoxyanisoin is miscible with the matrix/epoxy thereby lowering the process viscosity. Upon cooling or reaction, desoxyanisoin phase separates and crystallizes providing unique in-situ reinforced composites. The mechanical and flammability properties of these desoxyanisoin-epoxy thermoset composites are described. Another approach to enhancement of flammability properties is demonstrated by fabricating organic/inorganic thermoplastic elastomers (TPEs) based on isotactic polypropylene (iPP) and polydimethylsiloxane (PDMS) materials by reactive melt mixing in the presence of peroxides. These polyolefin based thermoplastic elastomers are similar to the dynamically vulcanized elastomer-thermoplastic blends of polyolefins with ethylene-propylene diene copolymer (EPDM). Herein PDMS is used as an EPDM equivalent. Furthermore, not only PDMS is dynamically cross-linked, but there are some cross-links with the amorphous iPP. Varying the content of PDMS allows for design of TPEs with a wide range of mechanical and physical properties. Lastly, an approach to enhance the toughness and ductility of semi-crystalline polymers by deforming the material in a solid state to a strain-softening regime is described. This treatment imposes changes in the post yield behavior by process of compression and shear in the solid state at low temperature, low pressures and unconfined geometry. Crystal-structure alteration due to orientation and fragmentation of the lamellae during this treatment leads to the enhancement in non-linear ductility. The fundamental principles governing this approach are investigated.
Publisher:
ISBN:
Category :
Languages : en
Pages : 159
Book Description
This dissertation describes the investigation of unconventional methods to enhance polymer properties either by using unique processing methods, such as solid-state deformation, or by using multifunctional additives that can simultaneously provide a number of property enhancements. The three main research areas of this dissertation are self-reinforced glassy thermosets, melt-processeable organic/inorganic thermoplastic elastomers and semi-crystalline thermoplastics with improved ductility due to a unique solid-state process treatment. Various thermosets, including epoxies, are used in systems with fibers or other additives to improve stiffness. However such systems are difficult to process due to increased viscosity. This work investigates a new method to reinforce thermoset materials with low molecular weight (LMW) crystallizable additives. Desoxyanisoin, which is a pre-cursor to a flame-retardant molecule 4,4'-bishydroxydesoxybenzoin that is engineered to promote char, is used as a LMW organic crystallizable compound. At processing temperatures, desoxyanisoin is miscible with the matrix/epoxy thereby lowering the process viscosity. Upon cooling or reaction, desoxyanisoin phase separates and crystallizes providing unique in-situ reinforced composites. The mechanical and flammability properties of these desoxyanisoin-epoxy thermoset composites are described. Another approach to enhancement of flammability properties is demonstrated by fabricating organic/inorganic thermoplastic elastomers (TPEs) based on isotactic polypropylene (iPP) and polydimethylsiloxane (PDMS) materials by reactive melt mixing in the presence of peroxides. These polyolefin based thermoplastic elastomers are similar to the dynamically vulcanized elastomer-thermoplastic blends of polyolefins with ethylene-propylene diene copolymer (EPDM). Herein PDMS is used as an EPDM equivalent. Furthermore, not only PDMS is dynamically cross-linked, but there are some cross-links with the amorphous iPP. Varying the content of PDMS allows for design of TPEs with a wide range of mechanical and physical properties. Lastly, an approach to enhance the toughness and ductility of semi-crystalline polymers by deforming the material in a solid state to a strain-softening regime is described. This treatment imposes changes in the post yield behavior by process of compression and shear in the solid state at low temperature, low pressures and unconfined geometry. Crystal-structure alteration due to orientation and fragmentation of the lamellae during this treatment leads to the enhancement in non-linear ductility. The fundamental principles governing this approach are investigated.
Blends and Alloys of Engineering Thermoplastics
Author: H.T.Van De Grampel
Publisher: iSmithers Rapra Publishing
ISBN: 9780080417448
Category : Composite materials
Languages : en
Pages : 142
Book Description
Publisher: iSmithers Rapra Publishing
ISBN: 9780080417448
Category : Composite materials
Languages : en
Pages : 142
Book Description