Preparation method of weather-resistance tile adhesion agent for exterior wall ceramic tiles

Abstract

The invention discloses a preparation method for a weather-resistance tile adhesion agent for exterior wall ceramic tiles, and belongs to the technical field of tile adhesion agent preparation. The preparation method comprises the steps that a pressure treatment is conducted with saturated steam, so that acetic acid is formed by hydrolysis of ethanoyl contained in bagasse cellulose, under the condition of acid environment, the cellulose and hemicellulose in the materials are disintegrated, then the pressure is released rapidly, the cellulose is instantaneously swelled, broken and hydrolyzed, then is frozen with liquid nitrogen, and thus ice crystals are produced among the bagasse cellulose; the ice crystals are burst by ball milling, and thus bagasse cellulose whisker is formed; the bagasse cellulose whisker is mixed with nanosilicon dioxide for carbonization under nitrogen atmosphere, after the bagasse cellulose whisker is carbonized, silicon carbide whisker is grown on the surface of the bagasse cellulose whisker, and the modified bagasse whisker is prepared as a reinforcing agent, moreover, sticky rice is cooked and beaten into a pulp liquid as an adhesion agent; the reinforcing agent, the adhesion agent and portland cement are mixed and are subjected to ball milling, then the weather-resistance tile adhesion agent for the exterior wall ceramic tiles is prepared. The preparation method has the advantages that the prepared product has good weather resistance, and is free of cracks and tile spalling after use.

Description

technical field [0001] The invention relates to a preparation method of a weather-resistant tile adhesive for exterior wall tiles, and belongs to the technical field of tile adhesive preparation. Background technique [0002] The rapid development of architectural ceramics has made a significant contribution to the beautification of cities and home environments. The traditional tile paste method mostly uses cement mortar, which is to mix sand and cement on site to make simple cement mortar, apply this mortar on the back of pre-soaked or pre-wetted tiles, and press the mortar-coated tiles onto the pre-wetted surface on the tile, then tap the tile to ensure a consistent flatness of the tile. The main purpose is to compact the mortar so that the cement particles get into the interior of the porous back of the tile and into the porous substrate. The disadvantages of this kind of mortar are weak cohesion, poor durability, easy to peel off, and large amount of construction mater...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: Aiming at the disadvantages of poor weather resistance of current tile adhesives and being easily affected by sudden temperature changes, resulting in weakened bonding force between tiles and walls, cracking and peeling of tiles, a method of using saturated adhesives is provided. Water vapor pressurization treatment hydrolyzes the acetyl group contained in bagasse cellulose to generate acetic acid. Under acidic environmental conditions, the cellulose and hemicellulose in the material decompose, and then rapidly reduce the pressure to make the fiber instantly expand and break down. Then freeze with liquid nitrogen to make ice crystals between the bagasse fibers, break the ice crystals under the pressure of ball milling to form bagasse fiber whiskers, mix with nano silicon dioxide, and carbonize under nitrogen atmosphere to carbonize the bagasse fiber whiskers Finally, silicon carbide whiskers are grown on the surface, and modified bagasse whiskers are prepared as a reinforcing agent, and then the glutinous rice is boiled and beaten into a slurry as a binder, mixed with Portland cement, etc., and ball milled to obtain a weather-resistant tile for exterior walls. Type ceramic tile adhesive, the present invention effectively solves the problem of its poor weather resistance and weakens the bonding force between tiles and walls by adding self-prepared whiskers as added fibers