scholarly journals Toughening of Epoxy Resin by Modification with Poly[poly(N-phenylmaleimide-alt-styrene)-graft-polyethylene oxide]Prepared by in situ Polymerization

2008 ◽  
Vol 65 (9) ◽  
pp. 562-572 ◽  
Author(s):  
Jun MISUMI ◽  
Toshiyuki OYAMA ◽  
Masao TOMOI ◽  
Akio TAKAHASHI
Keyword(s):  
Epoxy Resin ◽  
Polyethylene Oxide ◽  
In Situ Polymerization

Synthesis of conductive adhesives based on epoxy resin and polyaniline.DBSA using the in situ polymerization and physical mixing procedures

2010 ◽  
Vol 160 (17-18) ◽  
pp. 1981-1986 ◽  
Author(s):  
Bluma G. Soares ◽  
Micheli L. Celestino ◽  
Matheus Magioli ◽  
Viviane X. Moreira ◽  
Dipak Khastgir
Keyword(s):  
Epoxy Resin ◽  
In Situ Polymerization ◽  
Conductive Adhesives ◽  
Physical Mixing

Preparation of Epoxy Resin/Montmorillonite Composites by Monomer Insert In Situ Polymerization

2010 ◽  
Vol 178 ◽  
pp. 236-241
Author(s):  
Jing Xie ◽  
Shang Yue Shen ◽  
Yu Xia Luo ◽  
Meng Meng Zhang ◽  
Ying Chen
Keyword(s):  
Tensile Strength ◽  
Glass Transition ◽  
Transition Temperature ◽  
Epoxy Resin ◽  
In Situ Polymerization ◽  
Raw Materials ◽  
One Step ◽  
Polymerization Method ◽  
Intercalative Polymerization

Epoxy resin/ montmorillonite (EP/MMT) composite was prepared via monomer insert in-situ polymerization. It was shown that the EP/MMT composites could be successfully synthesized from the raw materials only by one step, making it simpler than traditional in-situ intercalative polymerization method. The d001 spacing of montmorillonite was tested by XRD and increased to 4.30nm. The results showed that tensile strength and impact strength were improved by 98.11 and 93.69%, respectively. The glass transition temperature was increased by 17.3 °C.

Toughening of Epoxy Resin Modified with In Situ Polymerized Acrylate Copolymer

2014 ◽  
Vol 910 ◽  
pp. 70-73
Author(s):  
Tao Wang ◽  
Jun Wang ◽  
Bin Zhang
Keyword(s):  
Mechanical Properties ◽  
Epoxy Resin ◽  
High Performance ◽  
In Situ Polymerization ◽  
Weight Ratio ◽  
Diglycidyl Ether ◽  
Resin System ◽  
Acrylate Copolymer ◽  
Modified Epoxy

P(BA-St), a good modifier for epoxy resin, was prepared by BA and St in situ polymerization. The modified resin system was based on diglycidyl ether of bisphenol and methyl tetrahydrophthalic anhydride, tris (dimethylaminomethyl) phenol. The influence of the copolymer on mechanical properties and thermal performance of the systems was studied. When 15 wt% of the BA/St with a weight ratio composition of 7.5/7.5 was added to epoxy, high performance modified epoxy resin was obtained.

Self-Healing Ability of Smart Coating for Anticorrosion of Reinforcing Steel

2013 ◽  
Vol 357-360 ◽  
pp. 680-683 ◽  
Author(s):  
Wei Wang ◽  
Li Kun Xu ◽  
Li Li
Keyword(s):  
Epoxy Resin ◽  
In Situ Polymerization ◽  
Reference Electrode ◽  
Self Healing ◽  
Reinforcing Steel ◽  
Isophorone Diisocyanate ◽  
Epoxy Resin Coating ◽  
Smart Coating ◽  
Electrode Technique

Self-healing materials offer tremendous potential for providing long-lived structural materials. In this study, isophorone diisocyanate (IPDI) microcapsules as self-healing materials were synthesized via in situ polymerization. Thermogravimetric analysis characterized the thermal ability of IPDI, microcapsules and microcapsule shells. The morphology of microcapsules and microcapsule shells were characterized by FE-SEM. Scanning micro-reference electrode technique demonstrated that epoxy resin coatings with IPDI microcapsules on the surface of reinforcing steel Q235 could cure the scratched crevice by immersion in 0.01 M NaCl solution after the coating was scratched. The self-healing epoxy resin coating could protect Q235 from corrosion.

In situ polymerization of functionalized multiwalled-carbon nanotubes/epoxy resin composite fibers using a non-solvent technique

2020 ◽  
pp. 096739112093523
Author(s):  
Mohammad Ebrahim Karkhanehchin ◽  
Morteza Maghrebi ◽  
Majid Baniadam ◽  
Ali Dashti ◽  
Maryam Mokhtarifar
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
Tensile Strength ◽  
Epoxy Resin ◽  
In Situ Polymerization ◽  
Syringe Pump ◽  
Composite Fibers ◽  
Multiwalled Carbon ◽  
Functionalized Multiwalled Carbon Nanotubes

The aim of this study was to produce carbon nanotubes (CNTs)/polymer composite fibers by wet spinning without any solvent. The functionalized multiwalled-carbon nanotubes (F-MWNTs)/epoxy resin was synthesized by in situ polymerization method. Epoxy resin, F-MWNTs, and curing agent were mixed and injected by a syringe pump. The effects of operating parameters including the percentage of CNTs and the extrusion velocity of the syringe pump on the dispersion and alignment of F-MWNTs in the cross-section of F-MWNTs/polymer composite fibers were investigated. The composite fibers were characterized by tensile strength analysis, scanning electron microscopy (SEM), and electrical conductivity analysis. The experimental results showed that a decrease (30 ml/h to 15 ml/h) in extrusion velocity increased the electrical conductivity of composite fibers by more than 3%. This behavior was attributed to the higher alignment of F-MWNTs and improved conducting pathways along the composite fiber axis, as observed by SEM. In addition, by reducing extrusion velocity (30 ml/h to 15 ml/h), the tensile strength of composite fibers was enhanced just over twofold due to the better arrangement of CNTs which can be attributed to the further retention time of composite fibers and the pressure of the walled-needle. Moreover, the higher the processing time of spinning, the lower electrical conductivity of the fibers is which might be due to the higher coagulation of fibers.

SPEEK/epoxy resin composite membranes in situ polymerization for direct methanol fell cell usages

2007 ◽  
Vol 165 (2) ◽  
pp. 708-716 ◽  
Author(s):  
Tiezhu Fu ◽  
Chengji Zhao ◽  
Shuangling Zhong ◽  
Gang Zhang ◽  
Ke Shao ◽  
...  
Keyword(s):  
Epoxy Resin ◽  
In Situ Polymerization ◽  
Resin Composite ◽  
Composite Membranes ◽  
Epoxy Resin Composite ◽  
Direct Methanol
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