Investigation of the thermal, mechanical and morphological properties of poly(vinyl chloride)/polyhedral oligomeric silsesquioxane nanocomposites

2010 ◽  
Vol 59 (9) ◽  
pp. 1221-1225 ◽  
Author(s):  
Rodrigo Silva ◽  
Cléia Salles ◽  
Raquel Mauler ◽  
Ricardo Oliveira
Keyword(s):  
Vinyl Chloride ◽  
Polyhedral Oligomeric Silsesquioxane ◽  
Morphological Properties ◽  
Poly Vinyl Chloride ◽  
Oligomeric Silsesquioxane

scholarly journals Using Methacryl-Polyhedral Oligomeric Silsesquioxane as the Thermal Stabilizer and Plasticizer in Poly(vinyl chloride) Nanocomposites

Polymers ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 1711 ◽  
Author(s):  
Yu-Kai Wang ◽  
Fang-Chang Tsai ◽  
Chao-Chen Ma ◽  
Min-Ling Wang ◽  
Shiao-Wei Kuo
Keyword(s):  
Thermal Decomposition ◽  
Tensile Strength ◽  
Thermal Annealing ◽  
Vinyl Chloride ◽  
Polyhedral Oligomeric Silsesquioxane ◽  
Tensile Tests ◽  
Binary Blend ◽  
Thermal Stabilizer ◽  
Poly Vinyl Chloride ◽  
Oligomeric Silsesquioxane

In this study, we investigated the influence of methacryl-functionalized polyhedral oligomeric silsesquioxane (MA-POSS) nanoparticles as a plasticizer and thermal stabilizer for a poly(vinyl chloride) (PVC) homopolymer and for a poly(vinyl chloride)/dissononyl cyclohexane-1,2-dicarboxylate (PVC/DINCH) binary blend system. The PVC and the PVC/DINCH blend both became flexible, with decreases in their glass transition temperatures and increases in their thermal decomposition temperatures, upon an increase in MA-POSS content, the result of hydrogen bonding between the C=O groups of MA-POSS and the H–CCl units of the PVC, as determined using infrared spectroscopy. Furthermore, the first thermal decomposition temperature of the pure PVC, due to the emission of HCl, increased from 290 to 306 °C, that is, the MA-POSS nanoparticles had a retarding effect on the decomposition of the PVC matrix. In tensile tests, all the PVC/DINCH/MA-POSS ternary blends were transparent and displayed flexibility, but their modulus and tensile strength both decreased, while their elongation properties increased, upon an increase in MA-POSS concentration, both before and after thermal annealing. In contrast, the elongation decreased, but the modulus and tensile strength increased, after thermal annealing at 100 °C for 7 days.

Surface treatment of copper (II) oxide nanoparticles using citric acid and ascorbic acid as biocompatible molecules and their utilization for the preparation of poly(vinyl chloride) novel nanocomposite films

2016 ◽  
Vol 30 (9) ◽  
pp. 1267-1284 ◽  
Author(s):  
Shadpour Mallakpour ◽  
Atefeh Jarahiyan
Keyword(s):  
Ascorbic Acid ◽  
Citric Acid ◽  
Vinyl Chloride ◽  
Cuo Nanoparticles ◽  
Nanocomposite Films ◽  
Morphological Properties ◽  
Poly Vinyl Chloride ◽  
Blocking Effects ◽  
Solution Casting Method ◽  
Mechanical Tensile

In the present study, solution casting method was used for the preparation of nanocomposite films. Primarily, the surface of copper (II) oxide (CuO) nanoparticles was modified with biosafe molecules such as citric acid and ascorbic acid for better dispersion in the polymer matrix. Then novel nanocomposite films were fabricated by loading various percentages of modified CuO nanoparticles in the poly(vinyl chloride) matrix. The ultraviolet (UV)-blocking effects of nanocomposites and their optical properties were studied using UV-visible spectroscopy. Also, other analyses, including Fourier transform infrared spectroscopy, mechanical tensile test, thermogravimetric analysis, and X-microscopy, were performed for investigating thermal, mechanical, and morphological properties of the hybrid materials.

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