Polyvinyl chloride/ montmorillonite nanocomposites

Thermal and Mechanical Analysis of Silver/Carbon Nanoparticle—PMMA Nanocomposites Obtained by Miniemulsion Polymerization

“…Indeed Ash et al 18 reported a reduction of T g of 16 C for nanometric alumina/PMMA nanocomposites filled with 5 wt % of nanofiller; they suggested that the poor interfacial affinity of the nanocomposite produced large mobility in the polymer chains close to the nanoparticle surface, a lubrication effect, that in conjunction with an excellent nanoparticle dispersion produced the observed effect. Xu et al 19 in a similar context reported the reduction of PVC glass transition temperature, of some few centigrade degrees, in PVC/organo-montmorillonite nanocomposites.…”

Influence of Coupling Agent on the Properties and Structures of Poly(Vinyl Chloride)/Clay Nanocomposites

“…The glass transition temperature of PVC/Org-550 nanocomposite is close to that of virgin PVC. The reason is that PVC/Org-550 nanocomposites possess exfoliated structure and the exfoliated layer silicates may act as a plasticizer to increase the distance between PVC chains resulting in the decrease of the interaction between the PVC molecules and lead to the lower glass transition temperature of PVC/organoclay nanocomposites [11]. On the other hand, interaction between PVC chains and layered silicates, result in the decrease of T g of the PVC/Org-550 nanocomposite.…”

“…Polyvinyl chloride (PVC) is an important commercial thermoplastic polymer and has been studied and used widely in industrial fields for many years. To broaden PVC applications, PVC/clay nanocomposites were intensely studied [9,[11][12][13][14][15][16][17][18][19][20][21][22][23][24][25].…”

Influence of Organoclay Prepared by Solid State Method on the Morphology and Properties of Polyvinyl Chloride/Organoclay Nanocomposites

“…In this case, as the PVC blocks are physically linked to the clay plates, the movement of the PVC segments was limited and the T g of the PVC was increased. On the other hand, the layered silicates may act as a plasticizer to increase the distance between the PVC chains, resulting in the decrease of the interaction between the PVC molecules and the decrease of the T g of PVC/organoclay nanocomposites [23].…”

“…Chaoying et al [21,22] prepared PVC/MMT nanocomposites by melt blending of PVC with organically modified MMTs, and suggested MMTs content should be kept below 5 wt% in order to enhance the mechanical properties and improve the processing stability of the nanocomposites. Xu et al [23] also prepared PVC/MMT nanocomposites by melt intercalation and found that the glass transition temperatures (T g ) of PVC/organic-MMT nanocomposites were lower than that of neat PVC by DSC. Zhu-Mei et al [24] investigated properties of PVC/organic-MMT nanocomposites and the result showed the nanocomposites exhibited better mechanical, thermal, and flame retardant properties and lower degradation degree than neat PVC.…”