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Colored dry-mixed mortar and preparation method thereof

A dry-mixed mortar and color technology, applied in the field of titanium dioxide, can solve the problems of poor weather resistance, pan-alkali, etc., and achieve the effect of enhancing vividness and strong heating capacity

Active Publication Date: 2020-08-14
鑫统领建材集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to provide a colored dry-mixed mortar and its preparation method to solve the poor weather resistance of the colored mortar in the prior art. Alkali Technical Problems

Method used

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  • Colored dry-mixed mortar and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0095] To prepare colored dry mix mortar:

[0096] (1) Preparation of modified titanium dioxide:

[0097] Raw materials (by weight): 1 part of butyl titanate, 10 parts of water;

[0098] A1. Add butyl titanate into the reactor, at a temperature of 85°C, N 2 Gasification of butyl titanate under protection;

[0099] A2. Add water into the reactor; the reaction temperature is 525°C and the pressure is 1.01×10 5 Pa, N 2 Reaction under the protection of (nitrogen flow rate 1L / min, water vapor flow rate 1L / min, reaction time 30min) to obtain R818 type nano-TiO 2 ;

[0100] A3. The nano-TiO obtained in step A2 2 placed under inert gas CO 2 Cool down to 23°C in the atmosphere;

[0101] A4. The TiO obtained by cooling in step A3 2 Placed in a 45μm round-hole sieve to control TiO 2 The content is greater than 98%, the sieve residue is less than 0.01%, the volatile matter at 105°C is less than 0.05%, and the L value ranges from 98.5 to 100 to obtain the finished product of modi...

Embodiment 2

[0121] To prepare colored dry mix mortar:

[0122] (1) Preparation of modified titanium dioxide:

[0123] Raw materials (by weight): 1 part of butyl titanate, 15 parts of water;

[0124] A1. Add butyl titanate into the reactor, at a temperature of 60°C, N 2 Gasification of butyl titanate under protection;

[0125] A2. Add water into the reactor; the reaction temperature is 510°C and the pressure is 1.5×10 5 Pa, N 2 Reaction under the protection of (nitrogen flow rate 1L / min, water vapor flow rate 1L / min, reaction time 30min) to obtain R818 type nano-TiO 2 ;

[0126] A3. The nano-TiO obtained in step A2 2 placed under inert gas CO 2 Cool down to 22°C in the atmosphere;

[0127] A4. The TiO obtained by cooling in step A3 2 Placed in a 45μm round-hole sieve to control TiO 2 The content is greater than 98%, the sieve residue is less than 0.01%, the volatile matter at 105°C is less than 0.05%, and the L value ranges from 98.5 to 100 to obtain the finished product of modif...

Embodiment 3

[0147] To prepare colored dry mix mortar:

[0148] (1) Preparation of modified titanium dioxide:

[0149] Raw materials (by weight): 1 part of butyl titanate, 6 parts of water;

[0150] A1. Add butyl titanate into the reactor, at a temperature of 110°C, N 2 Gasification of butyl titanate under protection;

[0151] A2. Add water into the reactor; the reaction temperature is 530°C and the pressure is 0.5×10 5 Pa, N 2 Reaction under the protection of (nitrogen flow rate 1L / min, water vapor flow rate 1L / min, reaction time 20min) to obtain R818 type nano-TiO 2 ;

[0152] A3. The nano-TiO obtained in step A2 2 placed under inert gas CO 2 Cool down to 24°C in the atmosphere;

[0153] A4. The TiO obtained by cooling in step A3 2 Placed in a 45μm round-hole sieve to control TiO 2 The content is greater than 98%, the sieve residue is less than 0.01%, the volatile matter at 105°C is less than 0.05%, and the L value ranges from 98.5 to 100 to obtain the finished product of modif...

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Abstract

The invention provides colored dry-mixed mortar and a preparation method thereof, and solves the technical problems that colored mortar in the prior art is poor in weather resistance, and efflorescence easily occurs to dry-mixed mortar using Portland cement as a cementing material. The preparation method comprises the following steps: preparing the following components in parts by weight: 80 to 90parts of machine-made sand, 10 to 15 parts of a mixture W, 1 to 10 parts of stone powder and 1 to 5 parts of pigment; 0.1 to 1 part of redispersible latex powder; 0.2 to 1.2 parts of hydroxypropyl methyl cellulose ether; 10 to 15 parts of zeolite powder; the mixture W is prepared from white Portland cement, a modified mixture T-C and N, O carboxymethyl chitosan, and the modified mixture T-C is prepared from chitosan, isopropanol, ClCH2COOH and modified titanium dioxide. The prepared colored dry-mixed mortar is good in weather resistance, and efflorescence can be avoided as much as possible.

Description

technical field [0001] The invention relates to titanium dioxide, in particular to a colored dry-mixed mortar and a preparation method. Background technique [0002] Colored mortar is a kind of decorative mortar applied to the inner and outer walls of buildings. It is a kind of special mortar. It can resist the damage of external high temperature, low temperature and humidity changes. , fine aggregates, admixtures, additives, pigments, etc. These materials are mixed in a dry form and then mixed with water at the construction site before use. Because of its bright and durable color, it is widely used in industrial and civil buildings. [0003] With the increase of the pollution degree of the external environment and the change of the climate, the weather resistance of the colored mortar gradually decreases. Weather resistance is the ability of materials such as coatings, architectural plastics, rubber products, etc., to withstand the test of outdoor weather, such as compreh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/20
CPCC04B28/04C04B2201/50C04B2111/2023C04B2111/20C04B24/38C04B24/026C04B24/04C04B14/305C04B14/06C04B18/12C04B2103/54C04B2103/0057C04B24/383C04B14/047
Inventor 封培然张超于帅张旭东
Owner 鑫统领建材集团有限公司
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