Preparing Exfoliated MMT/Polymer Nanocomposites by Combined Latex Compounding and Spray‐Drying

Abstract

A facile and easily industrialized approach for preparing highly dispersed MMT/polymer nanocomposites is developed by combining the latex compounding method and a spray‐drying process. Clay particles are successfully delaminated into layers, and layer re‐stacking is effectively prevented. HR‐TEM and XRD results confirm that MMT layers achieve exfoliated or nearly exfoliated dispersion in both MMT/styrene‐butadiene rubber and MMT/PS nanocomposites. Compared with melt‐blended MMT/SBR composites, MMT/SBR nanocomposites prepared by this new strategy exhibit extremely high dynamic modulus.magnified image

Transport performance in novel elastomer nanocomposites: Mechanism, design and control

“…Because most rubbers have corresponding latex forms in which discrete rubber particles with sizes of ~50 nm are stably suspended in aqueous medium, latex technology offers a wide platform for the preparation of rubber nanocomposites [96,97]. The preparation process involves the dispersion of fillers in an aqueous solution and mixing with rubber latex, followed by co-coagulation [98], freeze-drying [99] or spray-drying [100] to isolate the compounds.…”

NIR‐Mediated Antibacterial Clay Nanocomposites: Exfoliation of Montmorillonite Nanolayers by IR825 Intercalation

“…Figure c shows the X‐ray diffraction (XRD) patterns of pure MMT, C/IR825‐PVPS, and C/IR825‐PVPS:MMT = (99:1, 95:5, 90:10). The XRD peak of free MMT appeared at the 2 θ value 7°, which corresponds to an interlayer d(100) was 1.263 nm . However, incorporation of the NIR active polymer caused the disappearance of the crystalline peak without the appearance of a new peak in the 2 θ range.…”

“…However, incorporation of the NIR active polymer caused the disappearance of the crystalline peak without the appearance of a new peak in the 2 θ range. This might be due to a physical effect between the MMT layer and the C/IR825‐PVPS polymer, coinciding with the exfoliated MMT structure formation through the ionic interface of the quaternized zwitterionic structure . As thermal stability is an important parameter for hyperthermal agents, we therefore conducted a thermo gravimetric analysis (TGA) of the prepared MMT composite.…”

Effect of silane coupling agent on the structure and mechanical properties of nano‐dispersed clay filled styrene butadiene rubber

“…Recently, latex compounding combined with spray drying was developed in our group to prepare SBR/clay nanocompound, with successful nanoscale dispersion of inorganic clay in the SBR matrix. In this research, in order to enhance the reinforcing ability of inorganic nanoclay, silane coupling agent, Si‐69, was employed during the preparation of inorganic clay filled SBR nanocomposites.…”