Epoxy resin/liquid natural rubber system: secondary phase separation and its impact on mechanical properties

2010 ◽  
Vol 45 (7) ◽  
pp. 1769-1781 ◽  
Author(s):  
Viju Susan Mathew ◽  
Christophe Sinturel ◽  
Soney C. George ◽  
Sabu Thomas
Keyword(s):  
Mechanical Properties ◽  
Phase Separation ◽  
Natural Rubber ◽  
Epoxy Resin ◽  
Secondary Phase ◽  
Liquid Natural Rubber ◽  
Secondary Phase Separation

Investigation of secondary phase separation and mechanical properties of epoxy SBS-modified asphalts

2018 ◽  
Vol 165 ◽  
pp. 163-172 ◽  
Author(s):  
Ya Liu ◽  
Jing Zhang ◽  
Yongjia Jiang ◽  
Chenxuan Li ◽  
Zhonghua Xi ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Phase Separation ◽  
Secondary Phase ◽  
Secondary Phase Separation

Hydrodynamic Effect on Secondary Phase Separation in an Epoxy Resin Modified with Polyethersulfone

2004 ◽  
Vol 25 (15) ◽  
pp. 1419-1424 ◽  
Author(s):  
Xiaolin Tang ◽  
Linxia Zhang ◽  
Tao Wang ◽  
Yingfeng Yu ◽  
Wenjun Gan ◽  
...  
Keyword(s):  
Phase Separation ◽  
Epoxy Resin ◽  
Secondary Phase ◽  
Hydrodynamic Effect ◽  
Secondary Phase Separation

scholarly journals Water vapor induced self-assembly of islands/honeycomb structure by secondary phase separation in polystyrene solution with bimodal molecular weight distribution

2021 ◽  
Author(s):  
Maciej Łojkowski ◽  
Adrian Chlanda ◽  
Emilia Choińska ◽  
Wojciech Swieszkowski
Keyword(s):  
Molecular Weight ◽  
Phase Separation ◽  
Molecular Weight Distribution ◽  
Weight Distribution ◽  
Self Assembly ◽  
Secondary Phase ◽  
Honeycomb Structure ◽  
Polymer Chains ◽  
Molecular Weights ◽  
Secondary Phase Separation

<p>The formation of complex structures in thin films is of interest in many fields. Segregation of polymer chains of different molecular weights is a well-known process. However, here, polystyrene with bimodal molecular weight distribution, but no additional chemical modification was used. It was proven that at certain conditions, the phase separation occurred between two fractions of bimodal polystyrene/methyl ethyl ketone solution. The films were prepared by spin-coating, and the segregation between polystyrene phases was investigated by force spectroscopy. Next, water vapour induced secondary phase separation was investigated. The introduction of moist airflow induced the self-assembly of the lower molecular weight into islands and the heavier fraction into a honeycomb. As a result, an easy, fast, and effective method of obtaining island/honeycomb morphologies was demonstrated. The possible mechanisms of the formation of such structures were discussed.</p>

Evaporation-induced pattern formation in polymer films via secondary phase separation

2002 ◽  
Vol 57 (15) ◽  
pp. 2901-2905 ◽  
Author(s):  
Masato Yamamura ◽  
Takatoshi Nishio ◽  
Toshihisa Kajiwara ◽  
Kitaro Adachi
Keyword(s):  
Phase Separation ◽  
Pattern Formation ◽  
Polymer Films ◽  
Secondary Phase ◽  
Secondary Phase Separation

Recyclable Oil-Absorption Foams via Secondary Phase Separation

2018 ◽  
Vol 6 (11) ◽  
pp. 13834-13843 ◽  
Author(s):  
Yongtao Wang ◽  
Huige Yang ◽  
Zhihao Chen ◽  
Ning Chen ◽  
Xinchang Pang ◽  
...  
Keyword(s):  
Phase Separation ◽  
Secondary Phase ◽  
Oil Absorption ◽  
Secondary Phase Separation

Primary and Secondary Phase Separation in CdF2-LiF-AlF3-PbF2 Glasses

1988 ◽  
Vol 71 (12) ◽  
pp. 1134-1141 ◽  
Author(s):  
MICHAEL S. RANDALL ◽  
JOSEPH H. SIMMONS ◽  
OSAMA H. EL-BAYOUMI
Keyword(s):  
Phase Separation ◽  
Secondary Phase ◽  
Secondary Phase Separation

Mechanical Properties of Kenaf Core Sandwich Panel Toughened with Modified Epoxy

2015 ◽  
Vol 1115 ◽  
pp. 275-278
Author(s):  
J.N. Hasnidawani ◽  
Noor Azlina Hassan ◽  
H. Norita ◽  
Zahurin Halim ◽  
A. Zuraida
Keyword(s):  
Mechanical Properties ◽  
Natural Rubber ◽  
Sandwich Panel ◽  
Drop Impact ◽  
Main Element ◽  
Kenaf Fiber ◽  
Kenaf Core ◽  
Liquid Natural Rubber ◽  
Impact Modifier ◽  
Modified Epoxy

Kenaf-core sandwich panels were prepared by hand lay-up method with the optimum characteristics. The aim of this study is to determine the effects of modified epoxy on the mechanical properties of the sandwich panel. Mechanical test such as flexural, drop impact and tensile test were performed to investigate the optimum system of kenaf-core sandwich panel within 0-5wt% of kenaf fiber content. It revealed that the optimum loading of kenaf fiber was at 3wt%. Furthermore, this system was studied with the incorporation of liquid natural rubber (LNR) as impact modifier. All tests have been carried out according to the ASTM 365, C297, C393, and D1736. Each final data point is an average value that has been obtained based on a statistical sampling of four specimens. The main element of core structure is kenaf and the skin used in this study is aluminium type 1100. According to compression, flatwise tensile, three point bending and drop impact tests, 3wt% of LNR content exhibit as an excellent impact modifier, in modifying the mechanical properties due to rubber toughening. In addition of too much liquid natural rubber more than 5wt% was substantially interrupted the system.

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