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Inorganic artificial combining stone and preparation method thereof

A stone and inorganic technology, applied in the field of inorganic artificial synthetic stone and its preparation, can solve the problems of whitening, alkali resistance, anti-fouling, etc., and achieve good corrosion resistance of acid, alkali, salt and high temperature, strong anti-fouling and durability. excellent effect

Inactive Publication Date: 2012-07-11
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the problems of whitening and efflorescence and poor anti-fouling performance of the artificial synthetic stone prepared by using soil polymer as the inorganic cement during use, and adopts optimized decorative aggregates, stone particles, stone powder, and metakaolin The gradation of the powder forms a close accumulation of continuous particle sizes; the compactness of the stone is improved by increasing the pressure during compression molding; the early reaction degree is improved by heating and curing; and technical measures such as coating the surface with a protective agent are used to solve the problem.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Calcining industrial kaolin at 850°C for 15 minutes in an industrial rotary kiln, and grinding to obtain metakaolin powder (D 90 =8.32μm, activity index 30%);

[0036] Add 0.3% borax coagulant and 0.2% iron red inorganic pigment to 9% sodium silicate solution (modulus 1.0, mass concentration 30%), and stir evenly to obtain a mixed slurry;

[0037] Mix 6% metakaolin powder, 70% marble particles and powder, 15% mixed decorative aggregate of mosaic and shell fragments, and 0.2% polypropylene fiber to make a mixed dry material;

[0038] Add the above-mentioned mixed slurry to the mixed dry material, cover and seal it and start vacuuming to -0.100MPa, and stir under vacuum for 10 minutes; unload the material evenly into the mold, vacuumize to -0.090MPa in a sealed state, and then Vibrating and pressing for 6 minutes under vacuum to obtain artificial marble blocks;

[0039] Naturally cured the blocks with molds at room temperature for 3 days, and then kept them under airtig...

Embodiment 2

[0042] Calcining industrial kaolin at 750°C for 35 minutes in an industrial rotary kiln, and grinding to obtain metakaolin powder (D 90 =3.28μm, activity index 20%);

[0043] Add 0.6% chrome yellow inorganic pigment to 10% sodium silicate solution (modulus 1.6, mass concentration 40%) and stir evenly to make a mixed slurry;

[0044] Mix 8% metakaolin powder, 62% limestone and calcite mixed particles and powder, 20% glass and amber particle mixed decorative aggregate to make mixed dry material;

[0045] Add the above-mentioned mixed slurry to the mixed dry material, cover and seal it and start vacuuming to -0.085MPa, and stir under vacuum for 20 minutes; unload the material evenly into the mold, vacuumize to -0.100MPa in a sealed state, and then Vibrating and pressing for 3 minutes under vacuum to obtain artificial marble blocks;

[0046] The artificial marble blocks with molds are maintained for 1 day, and then placed in a sealed condition at 100 o C curing for 6 hours; then ...

Embodiment 3

[0049] Calcining industrial kaolin at 700°C for 45 minutes in an industrial rotary kiln, and grinding to obtain metakaolin powder (D 90 =9.56μm, activity index 26%);

[0050] Add 0.3% zinc oxide and 0.3% barium chloride coagulation regulator to 15% potassium silicate solution (modulus 1.4, mass concentration 38%), and stir evenly to make a mixed slurry;

[0051] Stir the mixed aggregate of 12% metakaolin powder, 45% quartz sand, quartz powder and granite evenly, and evenly cover the mixed decorative aggregate of 28% glass particles and lenses to obtain the mixed dry material;

[0052] Sprinkle the mixed slurry evenly on the surface of the mixed dry material layer, cover and seal it, stir for 3 minutes, spread the cloth, vacuumize to -0.100MPa under the sealed state, vibrate and press under vacuum for 3 minutes, and form the artificial quartz stone plate embryo body;

[0053] The artificial quartz stone slab body was naturally cured at room temperature for 1 day, then cured at...

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Abstract

The invention discloses inorganic artificial combining stone and a preparation method thereof. The artificial combining stone uses silicon acid-base solution to arouse metakaolin to react and generate geopolymer to serve as an inorganic cementing agent, and the artificial combining stone mainly contains the metakaolin, the silicon acid-base solution, natural stone aggregate, decoration aggregate, a thickening time control agent, inorganic pigment and fibers. The preparation method is firstly enabling the thickening time control agent and the inorganic pigment to be dissolved in the silicon acid-base solution to obtain mixed serous fluid, evenly blending the metakaolin, the natural stone aggregate, the decoration aggregate, the fibers and the mixed serous fluid, preparing the artificial combining stone through model entering or material distribution, vibration under the vacuum condition, molding in a pressing mode, maintaining, cutting, polishing, burnishing and surface protection. The artificial combining stone not only has decoration features which can be equal to that of resin artificial stone, but also is non-toxic, environment-friendly, low in cost, resisting in corrosion of most majority of acid-base salts, durable in high temperature and excellent in durable performance, obviously avoids whiting and saltpetering phenomena after a long time use, and is strong in pollution resisting capability.

Description

technical field [0001] The invention belongs to the field of artificial stone, and in particular relates to an inorganic artificial synthetic stone and a preparation method thereof. Background technique [0002] At present, artificial synthetic stones for decoration on the market mainly include artificial stones and quartz stones. Artificial stones generally use natural stone or stone powder whose main component is calcium carbonate minerals as aggregates; while quartz stones use quartz sand or quartz powder as aggregates. material. Both artificial stone and quartz stone use unsaturated polyester resin as the binder, so they are also called resin-type artificial stone or organic artificial stone. They have light weight, thin thickness, high strength, good processing performance, high gloss, uniform color, and more It can be widely used in interior decoration projects such as kitchen and bathroom, walls, and floors due to its characteristics of color, pattern, and good decor...

Claims

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Application Information

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IPC IPC(8): C04B28/26C04B28/00B28B1/52B28B1/087B28B3/02
CPCY02P40/10
Inventor 文梓芸殷素红晏锦叶门康
Owner SOUTH CHINA UNIV OF TECH
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