Paper Title:
Thermal and Mechanical Properties of Epoxy/Polyurethane Blend System Initiated by Cationic Latent Thermal Catalyst
  Abstract

In this work, the blend of diglycidylether of bisphenol A (DGEBA) and modified polyurethane (PU) was prepared and characterized the cure behavior and mechanical interfacial properties. The N-benzylpyrazinium hexafluoroantimonate was used as a cationic initiator for cure, and the content of PU was varied within 0~20 phr. The cure behavior and mechanical interfacial properties were studied by DSC and the critical stress intensity actor (KIC) measurements. Also thermal stabilities were carried out by TMA and TGA analyses. It is found that the cure activation energy (Ea) was slightly increased on increasing the PU content, and a maximum value was noted at 10 phr PU. The mechanical interfacial properties measured from KIC showed a similar behavior with the results of conversion. These results were probably due to the increase of the hydrogen bonding between the hydroxyl groups of DGEBA and isocyanate groups in PU.

  Info
Periodical
Solid State Phenomena (Volume 119)
Edited by
Chang Kyu Rhee
Pages
215-218
DOI
10.4028/www.scientific.net/SSP.119.215
Citation
S. J. Park, S. J. Seok, B. G. Min, "Thermal and Mechanical Properties of Epoxy/Polyurethane Blend System Initiated by Cationic Latent Thermal Catalyst", Solid State Phenomena, Vol. 119, pp. 215-218, 2007
Online since
January 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Chun Miao Han, Yu Yan Liu, Hui Feng Tan
Chapter 5: Metal Alloy Materials
Abstract:A series of hyperbranched polyester (HBPE) modified shape memory epoxies (SMEPs) were prepared for the first time. The materials’ toughness,...
851
Authors: Zhong Yi Xu, Lei Du, Li Qiang Wan, Fa Rong Huang
Chapter 7: New Materials and its Applications
Abstract:A novel linear benzoxazine-containing polytriazole was successfully synthesized via metal-free click reaction. Benefited from the advantages...
973
Authors: Nai Qiang Zhang, Jian Dong, Hong Yu Chen
Chapter 7: Elastomers & Polymers
Abstract:Polydimethylsiloxane/poly (methyl methacrylate) (PDMS/PMMA) blends were prepared by radical copolymerization of methyl methacrylate (MMA) and...
1193
Authors: Ji Wei Li, Xue Gang Luo, Xiao Yan Lin, Xian Hong Li
A. Environment Related Materials and Photocatalysts
Abstract:The blend films of ungelatinized and gelatinized starch/polyvinyl alcohol (PVA) were prepared by solution casting method. Their morphologies...
89
Authors: Nawapon Sukudom, Lerpong Jarupan
Chapter 1: Materials Science and Technology
Abstract:Effects on characteristics and mechanical properties of oil palm frond fiber (OPFF) as a reinforced element in poly vinyl alcohol (PVA) were...
3