scholarly journals X-ray Diffraction Analyses on Stress Transfer Through Polymer Composites Interface

2012 ◽  
Vol 48 (2) ◽  
pp. 48-57 ◽  
Author(s):  
Takashi NISHINO
Keyword(s):  
Polymer Composites ◽  
Stress Transfer ◽  
X Ray Diffraction ◽  
X Ray

Microstructure and Physical Properties of Clay-Polymer Composites

2000 ◽  
Vol 628 ◽  
Author(s):  
T.N. Blanton ◽  
D. Majumdar ◽  
S.M. Melpolder
Keyword(s):  
Composite Materials ◽  
Physical Properties ◽  
Polymer Composites ◽  
Basal Plane ◽  
X Ray Diffraction ◽  
X Ray ◽  
Layered Clay

ABSTRACTClay-polymer nanoparticulate composite materials are evaluated by the X-ray diffraction technique. The basal plane spacing provided information about the degree of intercalation and exfoliation of the 2: 1 layered clay structure. Both intercalation and exfoliation are controlled by the identity of the polymer and the clay:polymer ratio.

Experimental Investigation of Surface Modified Abaca Fibre

2020 ◽  
Vol 978 ◽  
pp. 291-295 ◽  
Author(s):  
Agnivesh Kumar Sinha ◽  
Harendra Kumar Narang ◽  
Somnath Bhattacharya
Keyword(s):  
Polymer Composites ◽  
Amorphous Materials ◽  
Crystallinity Index ◽  
Surface Modifications ◽  
Xrd Analysis ◽  
Natural Fibres ◽  
Ftir Analysis ◽  
X Ray Diffraction ◽  
X Ray ◽  
Surface Modified

Natural fibres have gained popularity due to their use in fabrication of biodegradable polymer composites which are not only non-polluting but are also light weight and inexpensive. Abaca fibres are known for their remarkable properties for which their polymer composites are used in automotive applications. However, hydrophilicity and compatibility with polymer matrices are the two major drawbacks of natural fibres which restrict their use as reinforcements in polymer composites. Therefore, present study deals with the surface modifications of abaca fibre using potassium permanganate and sodium hydroxide solutions to enhance crystallinity and reduce hydrophilicity of abaca fibres. Further, the surfaces of untreated and treated fibre were investigated with the help of Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) analysis. Surface treatment of abaca fibre led to the removal of unwanted wax, and other amorphous materials which was confirmed through FTIR analysis. Crystallinity index was found to be 57%, 59% and 61% for untreated, NaOH treated and KMnO4 treated abaca fibre respectively.

Spectroscopic and Electrical Studies of Ferrous Sulphate Doped Polyaniline

2012 ◽  
Vol 585 ◽  
pp. 224-227
Author(s):  
Anand Kumar ◽  
Ali Vazid ◽  
Sushil Kumar
Keyword(s):  
Polymer Composites ◽  
Structural Changes ◽  
Metal Salt ◽  
Potassium Dichromate ◽  
Ferrous Sulphate ◽  
Oxidative Polymerization ◽  
Dc Conductivity ◽  
X Ray Diffraction ◽  
X Ray ◽  
Uv Visible

Polyaniline (PANI) has been synthesized by chemical oxidative polymerization technique with potassium dichromate oxidant in aqueous hydrochloric acid medium. After polymerization, the polymer so prepared is doped with ferrous sulphate, a transition metal salt, with tetrahydrofuran and water as solvents. The undoped/doped samples were characterized by various techniques such as UV-visible spectroscopy, FTIR spectroscopy, X-ray diffraction and dc conductivity measurements. UV-visible absorption studies revealed the presence of cation/polaron transitions and the presence of direct optical transitions. FTIR studies provide information regarding structural changes in the backbone of PANI with doping concentration. X-ray diffraction patterns of powdered polymer composites showed amorphous nature as mostly conducting polymers exhibit. The dc conductivity of PANI-ferrous sulphate composites were measured by two probe method in pellet form at room temperature (300 K) and found to increase with temperature showing the semiconductor behavior of synthesized polymer composites

Analysis of Stress Transfer in Two-Phase Polymer Systems Using Synchrotron Microfocus X-ray Diffraction

2004 ◽  
Vol 37 (25) ◽  
pp. 9503-9509 ◽  
Author(s):  
Robert J. Young ◽  
Stephen J. Eichhorn ◽  
Yat-Tarng Shyng ◽  
Christian Riekel ◽  
Richard J. Davies
Keyword(s):  
Stress Transfer ◽  
X Ray Diffraction ◽  
Two Phase ◽  
Polymer Systems ◽  
X Ray

Determination of crystallite shapes in polymer composites using X-ray diffraction results

2017 ◽  
Author(s):  
Thejas G. Urs ◽  
Y. Sangappa ◽  
K. Byrappa ◽  
R. Somashekar
Keyword(s):  
Polymer Composites ◽  
X Ray Diffraction ◽  
X Ray
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