Silane-modified sodium–aluminium silicates — fillers used in polyurethane elastomers

Abstract

Sodium-aluminium silicates of a high degree of dispersion were obtained. Studies on the surface modi cation of sodium-aluminium silicates using silane coupling agents are described. The best modi ers, which induced a change of the silicate surface from a hydrophilic to a hydrophobic one, were selected. Physicochemical analyses of the obtained silicates were performed. The methods of evaluating the degree of surface modi cation of the silicate are presented. Attempts were made to employ the unmodi ed and modi ed sodium-aluminium silicates as llers in polyurethane elastomers. The introduction of sodium-aluminium silicate into urethane elastomer induced increases in composite parameters such as tensile strength, relative elongation, and hardness. The most pronounced reinforcing effects were observed with urethane elastomers lled with sodium-aluminium silicate modi ed with an aminosilane (A-1120).

Application of Dual Silane Coupling Agent-Assisted Surface-Modified Quartz Powder in Epoxy Matrix for Performance Enhancement

“…Chemical modification grafts organic groups on the surface of fillers to enhance the interfacial compatibility between the two phases [17][18][19][20][21][22], and silane coupling agent (SCA) treatment is recognized as an efficient surface modification method extensively used in composites. Thus far, amino or epoxy SCAs are commonly used in an epoxy-amine cured system [23][24][25].…”

Synthesis and characterisation of precipitated CuO · SiO2 oxide composites

“…Literature on the synthesis of CuO · SiO 2 oxide composites (copper silicates) is rather modest, in contrast to previous publications on the oxide composites of MO · SiO 2 type, where M most often stands for aluminium, calcium, zinc, magnesium or titanium. Sodium‐aluminium silicates have been applied as polymer fillers (Jesionowski and Krysztafkiewicz, 1996; Upadhyay and Kale, 2001; Werner et al , 2001b) and as highly active adsorbents with selective activity. After surface modification, e.g.…”

Evaluation of Synthetic Magnesium Silicate as a New Polymer Filler

“…High quality of polymer composites products requires not only an appropriate polymer but also carefully chosen supplements, of which most important are silica and silicate fillers of different types [1,2]. The fillers include natural and synthetic magnesium silicates known to improve the performance parameters of the filled polymers.…”