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    • CommentAuthorqzz10011
    • CommentTimeDec 18th 2017
     

    Glass Fill Information Different Fillers on Water Glass Adhesives Performance Adhesives A typical formula for water glass adhesives, Table 2 shows the effect of different fillers on the mechanical properties of water glass adhesives. According to the selection principle of the filler, the five kinds of packing have the characteristics of linear expansion coefficient home depot clapboard composite siding close to the adhesive, good temperature resistance and high mechanical strength, and the raw materials are easy to obtain and the cost is low. That is, both of them are similar to the basic components of the water glass adhesive, so that the compatibility and miscibility between the matrix and the filler are excellent, and the water glass adhesive film does not appear to have voids or cracks, thereby effectively improving the room temperature folding of the adhesive Strength and high temperature Table 1 lists the typical formula of water glass adhesive, the effect of different fillers on the mechanical properties of water glass adhesive.

    According to the selection principle of the filler, the five kinds of packing have the characteristics of linear recycled plastic fence posts manufacturing expansion coefficient close to the adhesive, good temperature resistance and high mechanical strength, and the raw materials are easy to obtain and the cost is low. As the main chemical composition of the five kinds of filler are aluminosilicate, which are similar to the basic components of water glass adhesives, so the compatibility between the matrix and the filler and mixed, specifically in the water glass film is not There will be gaps or cracks, thus effectively improving the bending strength of the adhesive at room temperature and high temperature residual strength. Filler on the flexural strength of the adhesive at room temperature Different fillers enhanced water glass adhesive room temperature flexural strength of the order textured wood grain plastic sheeting of quartz powder system containing cast stone powder system> containing mica powder system> containing kaolin system refractory clay system, that filler SiO2 The higher the content, the greater the flexural strength of the adhesive at room temperature.

    This is because the higher the SiO2 content is, the stronger the hydrogen bonding bridging between the silicate framework in the water glass adhesive and the bending strength at room temperature of the corresponding adhesive are also larger and larger. Thus, water glass adhesive bending strength at room temperature and filler SiO2 content is closely related. Effect of Fillers on Remnant Rate of High Temperature Strength of Adhesives From Table 2 and Table 3, it can be seen that the residual strength at 600 �� C of different filler-reinforced water glass adhesives is, in order, the quartz powder containing powder & lt; containing mica powder & lt; Kaolin system & lt; The refractory clay system, i.e.

    the higher the Al2O3 content in the filler, the greater the residual strength at high temperature strength. This is because the Al2O3 skeleton is not easily damaged in high temperature environment and its temperature resistance is better than that of SiO2. Therefore, the residual external railings handrailing suppliers uk high temperature strength of the corresponding adhesive increases with the increase of Al2O3 content. The residual ratio of high temperature strength of the water glass adhesive to the Al2O3 Content is closely related.

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