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A kind of inorganic coating with geopolymer material as film-forming substance

A technology of geopolymers and polymer materials, applied in the field of building decoration materials, can solve the problems of high content of organic matter, poor pollution resistance, easy aging, etc., and achieve the effects of simple preparation process, flexible use of space, and easy aging.

Inactive Publication Date: 2011-12-14
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of coating material with polymer as the main film-forming substance still has many shortcomings, such as poor water resistance and weather resistance, more organic volatile components, and easy aging; the most prominent problem is that as a putty layer, There is a problem with its combination with the wall mortar layer. When the surrounding environment of the putty layer is relatively humid, it is easy to absorb water and cause swelling. When the surrounding environment is dry, it is easy to dehydrate and cause shrinkage. peel and fall off
A kind of coating (patent application number: 2004100285869) with calcium hydroxide as the film-forming substance that has appeared at present has solved the shortcomings such as water resistance, non-toxic environmental protection, etc., but there are defects such as brittleness, non-pollution resistance, short shelf life, and hydrogen CaO and CO 2 The reaction is slow, the strength is low, the leveling is poor, and the amount of organic matter is still quite high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] This proportioning material can be used as a construction putty layer;

[0029] Raw material ratio:

[0030] The proportioning of parts by weight of the solid phase S component is as follows:

[0031] Metakaolin: 70 parts

[0032] Ground calcium carbonate powder: 20 parts

[0033] Stone powder: 10 parts

[0034] The parts by weight ratio of the liquid phase L component is as follows:

[0035] Potassium silicate (modulus 1.5): 60 parts

[0036] Water: 40 parts

[0037] Concrete preparation steps are as follows:

[0038] (1) Mix metakaolin, heavy calcium carbonate powder and stone powder additives according to the above ratio, stir and homogenize in a dry powder mixer for 30 minutes, and pack for use;

[0039] (2) Potassium silicate and water with a modulus of 1.5 are mixed uniformly in the upper proportion for use;

[0040] (3) Mix the solid phase S and the liquid phase L at a weight ratio of 1:1.5 before use, stir at high speed, age for 24 hours, and then disper...

Embodiment 2

[0042] This proportioning material can be used as the outer layer of building decoration surface;

[0043] Raw material ratio:

[0044] The parts by weight (by 100 parts) proportioning of the solid phase S component is as follows:

[0045] Metakaolin (whiteness greater than 90%, 1000 mesh or more): 75 parts

[0046] Heavy calcium carbonate powder (whiteness greater than 90%, 300 mesh or more): 15 parts

[0047] Quartz powder: 9.9 parts

[0048] Chopped polypropylene fiber: 0.1 parts

[0049] The parts by weight (by 100 parts) proportioning of the liquid phase L component is as follows:

[0050] Sodium silicate (modulus 2.0): 65 parts

[0051] Water: 35 parts

[0052] Concrete preparation process is as follows:

[0053] (1) Mix metakaolin, ground calcium carbonate powder, quartz powder and polypropylene fiber according to the above ratio, stir and homogenize in a dry powder mixer for 30 minutes, and pack for use;

[0054] (2) Sodium silicate and water with a modulus of ...

Embodiment 3

[0057] This proportioning material can be used as a construction putty layer;

[0058] Raw material ratio:

[0059] The proportioning of parts by weight of the solid phase S component is as follows:

[0060] Metakaolin (whiteness greater than 90%, more than 1000 mesh): 50 parts

[0061] Heavy calcium carbonate powder (whiteness greater than 90%, 300 mesh or more): 25 parts

[0062] Quartz powder: 20 parts

[0063] Stone powder: 5 parts

[0064] The parts by weight ratio of the liquid phase L component is as follows:

[0065] Sodium silicate (modulus 1.2): 50 parts

[0066] Water: 50 parts

[0067] Concrete preparation process is as follows:

[0068] (1) Mix metakaolin, kaolin, heavy calcium carbonate powder, lime calcium powder and stone powder according to the above ratio, stir and homogenize in a dry powder mixer for 30 minutes, and pack for use;

[0069] (2) Sodium silicate and water with a modulus of 1.2 are mixed uniformly according to the upper proportion and set a...

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Abstract

The invention discloses an inorganic coating using geopolymer material as a film-forming substance. It is a single-component water-based inorganic coating using alkali polymerized metakaolin geopolymer material as a film-forming substance. The coating is characterized in that It consists of solid phase S and liquid phase L. The solid phase S is metakaolin, heavy calcium carbonate powder, quartz powder, and anti-cracking additives; the liquid phase L is sodium or potassium water glass and water. The solid phase S and the liquid phase L are mixed in a weight ratio of 1:1.0 to 1.5. The invention eliminates many defects caused by organic polymer film formation. It has the characteristics of high strength, high hardness, water resistance, high temperature resistance, anti-aging, low cost, non-toxic and environmentally friendly, especially with good bonding force with cement mortar layer. It can be applied directly on the surface of buildings or products to provide decorative and protective properties.

Description

Technical field: [0001] The present invention relates to the field of building decoration materials and the field of protection. The content of the invention is metakaolin-based geopolymer as the main film-forming substance, which can be used in the interior and exterior wall putty layers, surface decoration layers or ground decoration layers, and protective layers in the construction field. One-component water-based inorganic coating. Background technique: [0002] At present, most of the coatings produced by domestic manufacturers and imported from foreign countries are organic coatings, which are roughly divided into water-based and oil-based coatings according to categories. However, no matter which coating has unresolved shortcomings, such as: no durability, easy to fall off, extremely Easy to produce chemical reactions with the external environment and other issues. [0003] Traditional architectural coating materials, including putty layers and surface coatings, most...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/26C04B14/10C04B14/28
CPCY02P40/10
Inventor 崔学民刘泗东隆忠良陈金玉刘海峰李新风
Owner GUANGXI UNIV
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