Building ceramics formed from esterified starch and waste ceramic powder through wet pouring process and preparation method for building ceramics

A technology for esterifying starch and building ceramics is applied in the field of construction to achieve the effects of alleviating the problem of increasing shortage, high economic benefit and low cost

Inactive Publication Date: 2017-09-26
WUHU BAOYI AMUSEMENT EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional architectural ceramics mostly adopt dry pressing molding process. In the preparation process, not only large-tonnage presses, spray towers and other high-power equipment are required, but also dust, noise and other pollution will be generated during the production process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The architectural ceramics formed by wet casting using esterified starch and waste porcelain powder in this embodiment is prepared by the following steps:

[0017] (1) Preliminary crushing of waste ceramic tiles with a crusher, then wet ball milling, drying, crushing and sieving to obtain 200-mesh powder for use;

[0018] (2) Fully dry the wheat starch, add 10 times the weight of DMF, raise the temperature to 140°C under stirring, keep magnetic stirring at constant temperature for 5 hours, cool down to 65°C, add 1.1 times the weight of acetic anhydride and 4 Double the weight of pyridine, after the dropwise addition, raise the temperature to 100°C, stir and react at a constant temperature for 12 hours, cool, pour into 15°C water to precipitate, filter, wash until neutral, and dry to obtain starch acetate;

[0019] (3) Mix waste porcelain powder, sodium polyacrylate, sodium lignin sulfonate, sodium polynaphthaldehyde sulfonate and water at a mass ratio of 1:0.008:0.004:0...

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Abstract

The invention discloses building ceramics formed from esterified starch and waste ceramic powder through a wet pouring process. The building ceramics is characterized in that the building ceramics formed from the esterified starch and the waste ceramic powder through the wet pouring process is obtained by the following steps: first, crushing, wet ball-milling and drying a waste ceramic tile to obtain the waste ceramic powder; then, performing esterification reaction on wheat starch and acetic anhydride to obtain starch acetate; next, mixing and ball-milling the waste ceramic powder, an auxiliary and water according to a proportion, adding the starch acetate and gum Arabic as a coagulant, and continuing performing ball milling to obtain slurry; finally performing pouring forming, drying and two-stage high-temperature calcination on the slurry. According to the building ceramics, the problem of growing shortage of a conventional high-quality ceramic raw material such as clay is alleviated, the building ceramics is low in cost and environment-friendly, and a production process is simple.

Description

technical field [0001] The invention belongs to the field of construction, and in particular relates to construction ceramics formed by wet casting using esterified starch and waste porcelain powder and a preparation method thereof. Background technique [0002] Traditional architectural ceramics mostly adopt the dry pressing molding process, which not only requires the use of high-power equipment such as large-tonnage presses and spray towers, but also produces dust, noise and other pollution during the production process. [0003] The wet casting method uses a non-porous mold, and uses the chemical reaction inside the slurry or a small amount of admixture to solidify the ceramic slurry in situ to form a green body, and obtain a green body with good microscopic uniformity and high density, which can significantly Improve material reliability. This new molding process has controllability, low cost and wide application range. Contents of the invention [0004] The purpose...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/132C04B33/13B28B1/04B28B1/093B28B11/24
CPCB28B1/045B28B1/093B28B11/243C04B33/1305C04B33/1324C04B2235/6022C04B2235/6562C04B2235/6567C04B2235/661Y02P40/60
Inventor 张庆
Owner WUHU BAOYI AMUSEMENT EQUIP
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