Semi-interpenetrating Polymer Networks of Poly(vinyl Chloride)/thermosetting Resin Blends PDF Download

Author: Xiaoming Xu
Publisher:
ISBN:
Category : Plastics
Languages : en
Pages : 512

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Author: Sabu Thomas
Publisher: Elsevier
ISBN: 032399475X
Category : Technology & Engineering
Languages : en
Pages : 646

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Book Description
Poly(vinyl chloride)-Based Blends, IPNs, and Gels brings together the latest research on the blending of PVC, covering processing, materials, properties, and applications. This book addresses these challenges and highlights the state-of-the-art in the field, such as the development of eco-friendly micro and nanostructured functional materials based on PVC and advances in experimental and theoretical studies of PVC based-polymer blends. This is a valuable resource for researchers and advanced students in polymer science, chemistry, composite science, and materials science and engineering, as well as R&D professionals, engineers, and scientists working with advanced PVC-based materials across a range of industries. Offers methodical, in-depth coverage of PVC-based blends, IPNs and gels with each polymer type Explains advanced methods for PVC-based materials with improved properties for a range of novel applications Provides avenues for improved sustainability, discussing PVC from biomass, lifecycle, recycling, and other environmental considerations

Author:
Publisher:
ISBN:
Category : Polymers
Languages : en
Pages : 280

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Author: P. M. Visakh
Publisher: Springer
ISBN: 3319034642
Category : Technology & Engineering
Languages : en
Pages : 250

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Book Description
This book delivers a deep insight into thermal polymer degradation features and put a particular emphasis on blends, composites and nanocomposites. It examines the thermal stability and the mechanism of degrading for every class of polymer substances and studies the effect on reinforcement to all classes. The book further explores the thermal stability when nano particles are added and summarizes the latest studies and application relevant results. This book offers a valuable reference source to graduate and post graduate students, engineering students, research scholars and polymer engineers from industry.

Author:
Publisher:
ISBN:
Category : Chemistry
Languages : en
Pages : 2540

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Author: David W. Gaibler
Publisher:
ISBN:
Category : Polymer networks
Languages : en
Pages : 368

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Book Description
The creation of new semi-interpenetrating polymer networks (semi-IPNs) was attempted using miscible blends of high molecular weight cellulose esters (CE) and low molecular weight polyvinylphenol (PVP) with various initiators for the crosslinking reaction. Blends of cellulose acetate (CA) or cellulose acetate butyrate (CAB), at 50/50, 70/30, and 90/10 wt%CE/wt% PVP were made. The PVP was reacted in the CAB systems with Hexamethylenetetramine (Hexa) at 190°C and in the CA systems with 1,3-Dioxolane (Diox) at 70°C. Thin films were formed and the thermal, mechanical, and structural properties of the blends and neat resins were evaluated using differential scanning calorimetry (DSC), tension tests, dynamic mechanical analysis (DMA) in tension, swelling tests, gel permeation chromotography (GPC), and pyrolysis molecular beam mass spectroscopy (py-MBMS). Multivariate analysis of the py-MBMS data and the GPC data revealed that reaction of the PVP increased with increasing initiator concentration at all compositions, but swelling tests showed that semi-IPNs were only formed at the CA/PVP 50/50 level. The glass transition temperatures (T [subscript g]) of the blends were unaffected by the reaction of the PVP, suggesting that the low molecular weight PVP was serving as a diluent of the high molecular weight CE. The tension tests showed no enhancement of mechanical properties. The DMA results indicated increased elastic characteristics at temperatures just above T[subscript g] as the amount of initiator was increased, which is consistent with a picture of chain extension of the PVP molecules, which in turn increased the number of trapped entanglements in the system, even when not forming a complete PVP network. In conclusion, all systems showed chain extension reaction of the PVP and some semi-IPN formation as detected by analytical methods, but these changes did not produce the desired increases in mechanical properties such as tensile modulus and strength.

Author: Daniel Klempner
Publisher:
ISBN:
Category : Language Arts & Disciplines
Languages : en
Pages : 664

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Book Description
Provides a comprehensive review of interpenetrating polymer networks. Opens with four review chapters by important workers in the field--Sperling, Klempner, Utracki, and Lipatov- and continues with an international penetration of current research. Covers synthesis and structure, miscibility and morphology, structure-property relationships, transport and permeability, and functionalized triglyceride oils.

Author: Chidchanok Mitupatham
Publisher:
ISBN: 9789746349680
Category : Polyurethanes
Languages : en
Pages : 288

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Book Description
Semi-Interpenetrating polymer networks (semi-IPN)of poly (vinyl chloride) (PVC) disperse phase and acontinuous matrix crosslinked polyurethane (PU) basedon polycaprolactone glycol (PCL), triethanolamine (TEA)and modified methylene diisocyanate (MMDI) was preparedusing either one-shot or prepolymer process. The lattergave completely phase compatibility while the formerincompatibility. The compatibility could be observedfrom the optically transparent, a homogeneous phase asobserved by SEM technique and a sharp T(,g) peak asobserved by DMA technique. It is attributed to thehydrogen-bonding between PVC hydrogen with PUprepolymer carbonyl and with PCL carbonyl. The value of T(,g) of PU (the equivalent ratios ofNCO/OH = 1.05 and of PCL:MMDI:TEA = 1:3:2) is reportedto be -7.0 degree C while that of the compatibleSemi-IPN be in the ranges of -4.0 degree C to 8.6degree C, dependent upon the amount of PVC presented. The mechanical properties including tensilestrength, elongation at break and hardness of PU andSemi-IPN prepared by those two processes were alsomeasured. In general the partially uncompatibledispersed phase PVC with the continuous matrix PU gavepoor mechanical properties than the completelycompatible Semi-IPN. The values of tensile strength,elongation at break and hardness (shore A) of theSemi-IPN are reported respectively in these studies inthe ranges of 3.46-6.10 N/mm('2), 385.4-557.3 %, and59.6-64.3, dependent upon the amount of PVC presented.In general, the larger the amount of PVC gave thebetter those mechanical properties except the hardnessof the materials was not significantly different eventhe variation of amount of PVC from 5 to 30 % byweight.

Author:
Publisher:
ISBN:
Category : Ceramic materials
Languages : en
Pages : 688

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Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 870

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