Improved Mechanical and Thermal Properties of Polypropylene Blends Based on Diethanolamine-Plasticized Corn Starch via in Situ Reactive Compatibilization

2013 ◽  
Vol 52 (46) ◽  
pp. 16232-16238 ◽  
Author(s):  
Lina Liu ◽  
Youming Yu ◽  
Ping’an Song
Keyword(s):  
Thermal Properties ◽  
Corn Starch ◽  
Mechanical And Thermal Properties ◽  
Reactive Compatibilization ◽  
Polypropylene Blends

scholarly journals 3C-SiC Nanowires In-Situ Modified Carbon/Carbon Composites and Their Effect on Mechanical and Thermal Properties

Nanomaterials ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 894 ◽  
Author(s):  
Hongjiao Lin ◽  
Hejun Li ◽  
Qingliang Shen ◽  
Xiaohong Shi ◽  
Tao Feng ◽  
...  
Keyword(s):  
Shear Strength ◽  
Thermal Properties ◽  
Sol Gel ◽  
Interlaminar Shear Strength ◽  
Mechanical And Thermal Properties ◽  
Initial Oxidation ◽  
Sic Nanowires ◽  
Out Of Plane ◽  
Interlaminar Shear

An in-situ, catalyst-free method for synthesizing 3C-SiC ceramic nanowires (SiCNWs) inside carbon–carbon (C/C) composites was successfully achieved. Obtained samples in different stages were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and Raman scattering spectroscopy. Results demonstrated that the combination of sol-gel impregnation and carbothermal reduction was an efficient method for in-situ SiCNW synthesis, inside C/C composites. Thermal properties and mechanical behaviors—including out-of-plane and in-plane compressive strengths, as well as interlaminar shear strength (ILLS) of SiCNW modified C/C composites—were investigated. By introducing SiCNWs, the initial oxidation temperature of C/C was increased remarkably. Meanwhile, out-of-plane and in-plane compressive strengths, as well as interlaminar shear strength (ILLS) of C/C composites were increased by 249.3%, 109.2%, and 190.0%, respectively. This significant improvement resulted from simultaneous reinforcement between the fiber/matrix (F/M) and matrix/matrix (M/M) interfaces, based on analysis of the fracture mechanism.

Microstructure, mechanical, and thermal properties of in situ-synthesized (ZrB2+SiC)/Zr2[Al(Si)]4C5 composites

2013 ◽  
Vol 39 (7) ◽  
pp. 8559-8563 ◽  
Author(s):  
D.D. Guo ◽  
J. Yang ◽  
L. Yu ◽  
L.M. Pan ◽  
T. Qiu ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Mechanical And Thermal Properties

Compatibilization of Polypropylene/Corn Starch Plasticized with Diethanol Amine

2012 ◽  
Vol 610-613 ◽  
pp. 475-479
Author(s):  
Jia Hao Qiu ◽  
Pin Gan Song ◽  
Shen Yuan Fu ◽  
Xian Xun Ge ◽  
Bing Huang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Corn Starch ◽  
Intermolecular Hydrogen Bonding ◽  
Starch Granules ◽  
Reactive Compatibilization ◽  
Hydrogen Bonding Interactions ◽  
Potential Applications ◽  
Plasticized Starch ◽  
Reduction Effect

In the presented paper, diethanol amine is employed to plasticize corn starch, and plasticized starch is incorporated into polypropylene to create semibio-based composites with the aid of compatibilizer, maleic anhydride-grafted PP (PPMA). Compared with PP/starch blend, the presence of diethanol amine changes the morphology and increases the plasticity of starch due to the reduction effect of intermolecular hydrogen bonding interactions. Adding PPMA could reduce the dispersed size of starch granules in the polymer matrix due to in situ reactive compatibilization. Addition of 30 wt% PPMA decreases the starch granules size from ~10 μm to ~5 μm, and increases the tensile strength from 16 MPa for PP/plasticized starch to 30 MPa, increased by 87.5%. Thus, as-created bio-composites with improved mechanical properties will find many potential applications such as packaging.

In-situ probing the electrical, mechanical, and thermal properties of individual carbon nanotubes and nanowires by using a TEM-SPM platform

2008 ◽  
Vol 14 (S2) ◽  
pp. 398-399
Author(s):  
J-Y Huang
Keyword(s):  
Carbon Nanotubes ◽  
Thermal Properties ◽  
New Mexico ◽  
Mechanical And Thermal Properties

Extended abstract of a paper presented at Microscopy and Microanalysis 2008 in Albuquerque, New Mexico, USA, August 3 – August 7, 2008

scholarly journals Investigation on the modification to solvent-containing two-component polyurethane coating by carbon nanotubes

2015 ◽  
Vol 44 (5) ◽  
pp. 300-305 ◽  
Author(s):  
X. Jiang ◽  
L. Lin ◽  
X. Bai ◽  
S. Wang ◽  
C. Wang
Keyword(s):  
Carbon Nanotubes ◽  
Thermal Properties ◽  
Composite Coating ◽  
Acid Treatment ◽  
Mechanical And Thermal Properties ◽  
Colour Properties ◽  
Content Type ◽  
Two Component ◽  
Appearance Properties

Purpose – The purpose of this paper is to investigate the effects of carbon nanotubes (CNTs) on the mechanical, thermal and colour properties of solvent-containing two-component polyurethane (PU) coating. Design/methodology/approach – Fourier transform infrared spectroscopy and observation of dispersion stability were used to assess the effects of acid treatment on CNTs. The CNTs and PU composite coating was synthesised by in situ polymerisation and bending polymerisation, and the mechanical, thermal and colour appearance properties of coating were characterised. Findings – It was found that desirable modifications to CNTs occurred after acid treatment; thus, mainly carboxylic acid groups were introduced onto the surface of CNTs. And the acid-treated CNTs could improve the mechanical and thermal properties of PU coating, and the properties of composite coating was improved more successfully by in situ polymerisation than by blending polymerisation. Practical implications – The investigation established a method to synthesise CNTs and PU composite coating. The mechanical and thermal properties of PU coating could be improved by the inclusion of CNTs. Originality/value – This study established a method to synthesise CNTs and PU composite coating by in situ polymerisation and blending polymerisation; the effects of CNTs on modifying mechanical, thermal and colour properties of PU coating were investigated and compared in detail.

Mechanical and thermal properties of hybrid nanocomposites prepared by in situ polymerization

Polimery ◽  
2016 ◽  
Vol 61 (03) ◽  
pp. 172-180 ◽  
Author(s):  
Sandra Paszkiewicz ◽  
Iwona Pawelec ◽  
Anna Szymczyk ◽  
Zbigniew Roslaniec
Keyword(s):  
Thermal Properties ◽  
In Situ Polymerization ◽  
Hybrid Nanocomposites ◽  
Mechanical And Thermal Properties
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