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Technology for preparing bamboo wood decorative plate with fly ash and product thereof
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The technology of fly ash and decorative board is applied in the field of bamboo and wood decorative board, which can solve the problems of high carbon content, high water absorption and high content, and achieve the effects of good flame retardant performance, low water absorption and high strength
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Problems solved by technology
The fly ash used in this patent application has not undergone decarbonization treatment and has high carbon content, but the excessively high carbon content makes the strength of the prepared boards low, which severely limits the actual use, and is highly water-absorbent and easy to corrode; Secondly, the adhesivesystem in the formula of the patent application is complex and the content is too high, resulting in high cost, which violates the original intention of environmental protection and green, and its adhesive is not suitable for the preparation of decorative panels
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Embodiment 1
[0053] In this embodiment, fly ash is used to manufacture bamboo and wood decorative panels, and the fly ash used is the fly ash of a circulating fluidized bed boiler, which is in the form of sponge floc. The fly ash includes: 48%-52% silicon dioxide, 6%-7% calciumoxide, 20%-28% aluminum oxide, 5%-7.2% ferricoxide, 1.8%- 2.1% magnesium oxide, 1%-1.25% sulfurtrioxide, the ignition loss is 6%-8%, and the carbon content is 10%-12%.
[0054] like figure 1 As shown, the present embodiment utilizes fly ash to prepare the steps of decorative panels as follows:
[0083] ②By weight, 45% of fly ash after decarburization, 45% of sawdust, and 10% of melamine binder are mixed;
[0084] ③ mixing the mixture obtained in step ②;
[0085] ④After paving the mixture stirred in step ③, pre-press with a pressure of 1.6MPa;
[0086] ⑤Hot press the mixture pre-pressed in step ④ at 210°C with a pressure of 1.3MPa to a density of 0.89g / cm 3 board;
[0087] ⑥ Carry out surface mounting on the hot-pressed board formed in step ⑤, that is, hot-press the melamine-impregnated film paper onto the board prepared in step ⑤.
[0088] Wherein, the particle size of the fly ash in step ① is 340 mesh, and the sawdust is 80 mesh.
[0089] The process of the fly ash decarburization treatment in step ① is the same as that in Embodiment 1, and will not be repeated here...
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Abstract
The invention discloses a technology for preparing bamboo wood decorative plate with fly ash. The technology comprises: (1) conducting decarburization treatment to a fly ashraw material; (2) mixing, by weight, 35%-60% of decarburized fly ash, 35%-60% of bamboo / wood chips, and 5%-20% of a melamineadhesive; (3) stirring the mixture obtained in step (2); (4) paving the stirred mixture from step (3) and then carrying out prepressing; (5) make the prepressed mixture of step (4) into a plate shape through hot pressing; (6) performing surface mounting to the plate molded through hot pressing in step (5). The technology of the invention first conduct decarburization treatment to fly ash to lower its carbon content, so that the prepared bamboo wood decorative plate can has low carbon content, small water absorption and high strength. The technology provided in the invention can manufacture large-size decorative plates and effectively make up the defect of small size of routine wood decorative plates.
Description
technical field [0001] The invention relates to the recycling utilization of fly ash, more specifically, the invention relates to a process for preparing bamboo wood decorative boards by using fly ash and the prepared bamboo wood decorative boards. Background technique [0002] Existing architectural decoration mostly uses marble decorative boards. Marble decorative boards are generally divided into two types. One is natural marble. Most of them are made of stone and additives, which consume a lot of stone resources, and the marble produced is soft, not resistant to high temperature, monotonous in color, poor in antifreeze and water seepage, and expensive. [0003] Fly ash is a by-product of coal-fired power plants. In the process of coal-fired heat supply and power generation, pulverized coal that has been ground to a certain fineness is burned in a boiler at high temperature, and is carried out by the flue gas and collected by a dust collector. Dust is a kind of solid wast...
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