Physical and mechanical properties of chlorosulfonated pe(CSPE)/Organoclay nanocomposites compatibilized with epoxidized natural rubber

Abstract

The influences of organoclay on properties of chlorosulfonated polyethylene (CSPE) are scrutinized by loading different filler amounts to the polymeric matrix. In addition, cure characteristics of the prepared nanocomposites are determined by using rheometeric analysis. Although maximum and minimum torque values illustrate a slight increase with the organoclay incorporation, both scorch time and cure time of nanocomposites present a reduction in the presence of organoclay. The tensile strength and elongation at break of nanocomposites went through a maximum as a function of the organoclay content. As expected, the hardness, moduli at 100% and 300% elongations continuously increased along with increasing organoclay loading. The dispersion of organoclay in CSPE chaning was analyzed by X‐ray diffraction and FESEM, methods. The best clay dispersion was achieved at 6 phr lauding by adding ENR 50. This was also observed in the stiffness of nanocomposites derived from both dynamic mechanical thermal analysis (DMTA) and tensile tests. J. VINYL ADDIT. TECHNOL., 23:E180–E187, 2017. © 2016 Society of Plastics Engineers

Correlation of the morphology and thermooxidative degradation behavior of poly(ethylene terephthalate)–nitrile butadiene rubber–polycarbonate ternary blends

“…Similarly, the transesterification led to a proportional compatibility in the PC30 sample during the mixing process and the production of random copolymer. As a result, the component loss peaks were close to those of the blends . Although the change in the T g value and the closeness of the T g components indicated a proportional miscibility of these samples, the results of the dynamical mechanical tests for the ternary sample of P1 including NBR, PC, and PET presented two peaks: the first was at temperatures below zero and belonged to the loss component of NBR, whereas the other one was higher than the other curves belonging to the loss of PET and PC on the basis of the proper solubility and the production of a random copolymer during the melt‐mixing process.…”

“…Because of the presence of 10 wt % NBR, the occurrence of transesterification and an exchange reaction during the mixing process led to the production of a random copolymer, and the morphology of P1 was much more miscible than that of P3 with 30 wt % PC. As a result, the PC seemed to be soluble in the PET matrix . Transesterification was acknowledged to have experienced a reduction because of the addition of 10–30 wt % PC.…”

“…The layers of the char acted as an oxygen barrier for the following thermal degradation process and resulted in a reduction in the degradation rate of PC . The transesterification and exchange reactions during the melt‐blending process at high temperatures created a random copolymer, and there was a compatibilization reaction in the blends . The initial degradation temperature decreased at a conversion (α) under a value of 0.05 as the PC amount increased from 10 to 30 wt % (PC10, PC20, and PC30) in the blends.…”

Effect of particle–particle and polymer–particle interactions on nanosilica aggregation in polystyrene

“…Polymer nanocomposites (PNCs) are technologically an important class of materials, with structural, biomedical, and optoelectronic applications. The thermal, mechanical, and optical properties of PNCs can be altered even at low nanoparticle concentrations depending on the polymer host and nanoparticles functionality . The properties of PNCs are sensitive to their microstructural features, which are generally difficult to control, due to a complex interplay of entropic and enthalpic interactions in the system .…”