Gypsum powder, preparation method thereof, and application of gypsum powder in sculptures and unfired pottery clay

Abstract

The invention discloses gypsum powder, a preparation method of the gypsum powder and application of the gypsum powder in sculptures and unfired pottery clay. The gypsum powder comprises the followingcomponents in parts by weight: 70-80 parts of gypsum powder, 15-20 parts of a filler, 0.2-0.5 part of a dispersing agent, 2-5 parts of dispersible latex powder, 5-10 parts of a retarder, 5-10 parts ofmodified starch, 8-12 parts of polyvinyl alcohol (PVA) powder, 1-10 parts of cellulose ether, and 1-2 parts of short glass fibers or 0.1-0.2 part of short chemical fibers. The gypsum powder providedby the invention is slow and adjustable in curing speed, and can be cured in 5-15 days; the cured gypsum powder still has high strength, can be used for shaping, and has good weather resistance and good compatibility with other materials; and the gypsum powder is used for sculptures and unfired clay, replaces sculpture clay and argil, is directly cured, does not need mold turnover, casting and high-temperature firing, protects the environment, reduces sculpture shaping procedures, greatly reduces process steps, shortens a sculpturing period and reduces sculpturing cost.

Description

technical field [0001] The invention relates to the technical field of gypsum powder, in particular to a gypsum powder, a preparation method thereof and an application in sculpture and unfired pottery clay. Background technique [0002] In the prior art, the specific production methods of clay sculpture include mud preparation processing, small sample drafting, building an inner skeleton, forming a large mud pile, in-depth shaping and shaping with gypsum, removing the mold, removing the mud, casting glass fiber reinforced plastic or Other casting materials and other steps. The above process needs to remove the mud, and the process steps are cumbersome; if gypsum is used instead of mud for sculpture, the shaping effect is good because of the high hardness of the gypsum, and there is no need to remove the gypsum, which can greatly reduce the process steps; however, the gypsum powder solidifies too fast It is not conducive to sculpture, so you cannot use gypsum powder for scul...

AI Technical Summary

Problems solved by technology

However, the general gypsum powder solidifies too fast, which is not conducive to kneading, and the bending toughness and weather resistance of gypsum powder are poor, so it is not suitable for making pottery.

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