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A two-component permeable acid-resistant cement surface hardener and its application method

An acid-resistant cement, permeable technology, applied in the field of building materials, can solve the problems of poor acid resistance and flexibility, and achieve the effect of improving flexibility, good water reduction effect, and avoiding cracking

Inactive Publication Date: 2021-06-11
MUDANJIANG NORTH CEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention is: Aiming at the problems of poor acid resistance and flexibility of traditional cement surface hardeners, a two-component permeable acid-resistant cement surface hardener and its application method are provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0026]According to the mass ratio of 1:10, mix gelatin with an isoelectric point of 6.0 and water into No. 1 beaker, stir and mix with a glass rod for 20 minutes, and let it stand for swelling at room temperature for 8 hours. After the swelling is completed, put No. 1 beaker Move the beaker into a magnetic stirrer with digital display speed measurement and constant temperature, and stir at a constant temperature and high speed for 60 minutes at a temperature of 55°C and a rotation speed of 1500r / min to obtain gelatin latex; The acid anhydride was added into the reaction kettle, and the pH was adjusted to 8.0 with a sodium hydroxide solution with a mass fraction of 6%, and then the temperature was 50°C, and the rotation speed was 800r / min, and the reaction was stirred at a constant temperature for 16 hours. During the reaction, by dropping Sodium hydroxide solution maintains the pH of the material in the reactor to be 8.0. After the reaction finishes, adjust the pH of the materi...

example 2

[0028] According to the mass ratio of 1:10, mix gelatin with an isoelectric point of 6.0 and water into No. 1 beaker, stir and mix with a glass rod for 20 minutes, and let it stand for swelling at room temperature for 8 hours. After the swelling is completed, put No. 1 beaker Move the beaker into a magnetic stirrer with digital display speed measurement and constant temperature, and at a temperature of 55°C and a rotation speed of 1500r / min, stir and disperse at a constant temperature and high speed for 60 minutes to obtain gelatin emulsion; Calcium hydrogen, at room temperature, stirred and mixed at a speed of 500r / min for 3 hours to obtain component A; in parts by weight, 50 parts of ethyl orthosilicate, 15 parts of phenyltrimethoxysilane, 8 parts of N , N-dimethylcyclohexylamine, 15 parts of dry oil, poured into the mixer, stirred and mixed with a stirrer at a speed of 800r / min for 4h, to obtain component B; then firstly add the components into the reactor Dehydrated alcoho...

example 3

[0030] According to the mass ratio of 1:10, mix gelatin with an isoelectric point of 6.0 and water into No. 1 beaker, stir and mix with a glass rod for 20 minutes, and let it stand for swelling at room temperature for 8 hours. After the swelling is completed, put No. 1 beaker Move the beaker into a magnetic stirrer with digital display speed measurement and constant temperature, and stir at a constant temperature and high speed for 60 minutes at a temperature of 55°C and a rotation speed of 1500r / min to obtain gelatin latex; The acid anhydride was added into the reaction kettle, and the pH was adjusted to 8.0 with a sodium hydroxide solution with a mass fraction of 6%, and then the temperature was 50°C, and the rotation speed was 800r / min, and the reaction was stirred at a constant temperature for 16 hours. During the reaction, by dropping Sodium hydroxide solution maintains the pH of the material in the reactor to be 8.0. After the reaction finishes, adjust the pH of the mater...

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Abstract

The invention discloses a two-component permeable acid-resistant cement surface hardener and an application method thereof, belonging to the technical field of building materials. The hardening agent that the present invention develops comprises component A and component B, wherein, component A comprises modified gelatin emulsion and calcium bicarbonate, and component B then comprises orthosilicate ethyl ester, phenyltrimethoxysilane, N ,N-Dimethylcyclohexylamine and dry oil, in the application process, first mix absolute ethanol and water and adjust the pH, then add component B dropwise, after constant temperature stirring reaction, adjust the pH to neutral, The hydrolyzate is obtained, and component A and the hydrolyzate are stirred and mixed evenly to obtain a two-component penetrating acid-resistant cement surface hardener. After curing for 24-36 hours, the application of the two-component permeable acid-resistant cement surface hardener can be completed. The two-component permeable acid-resistant cement surface hardener obtained in the invention has excellent acid resistance and flexibility.

Description

technical field [0001] The invention discloses a two-component permeable acid-resistant cement surface hardener and an application method thereof, belonging to the technical field of building materials. Background technique [0002] In parking lots, factory workshops, large supermarkets, logistics centers, squares, stadiums and other places, hardening of cement floors is often required to meet the requirements of wear resistance, high pressure resistance and easy cleaning. [0003] There are many ways to harden the surface of cement. The earliest method is to apply high-grade cement on the surface of ordinary cement to form a hardened thin layer, but the effect is general. Later, epoxy flooring appeared, which has the advantages of beautiful appearance, dustproof and chemical corrosion resistance, and is widely used. However, the cost of raw materials and construction is high, the hardness is low, it is easy to be damaged by vehicles, mechanical equipment, etc., and the ove...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/42C08H1/00
CPCC04B40/0039C08H1/00C04B24/14C04B22/10C04B24/42C04B24/121C04B24/045C04B24/08
Inventor 李长江刘伟杨帮燕许玉张烨
Owner MUDANJIANG NORTH CEMENT CO LTD
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