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A kind of low volatility environment-friendly building indoor concrete interface treatment agent and preparation method thereof

An interface treatment agent, low volatility technology, applied in the field of interface agent, can solve the problems of difficult to meet people's environmental protection needs, strict environmental protection standards, inability to meet, etc., to achieve strong adsorption, reduce VOCs, and uniform distribution.

Active Publication Date: 2020-06-09
MEICHAO GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Liquid interface agents are often used in architectural interior decoration, but volatile small molecular organic compounds inevitably exist in the emulsions and additives used in them, which makes the total content of volatile organic compounds (volatile organic compounds, VOCs) in the product higher, difficult to To meet people's environmental protection needs, but unable to meet increasingly stringent environmental protection standards, reducing VOCs content is the goal of current technological development, and it is also the main problem that needs to be solved urgently in scientific research and production in recent years

Method used

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  • A kind of low volatility environment-friendly building indoor concrete interface treatment agent and preparation method thereof
  • A kind of low volatility environment-friendly building indoor concrete interface treatment agent and preparation method thereof
  • A kind of low volatility environment-friendly building indoor concrete interface treatment agent and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] (1) Preparation of terminal maleate group and vinyl hyperbranched polyester:

[0052] Add 33.3 grams of trimethylolpropane into the reactor, raise the temperature to 140°C, add dimethylol propionic acid in three steps, first add 100 grams of dimethylol propionic acid, mix well and then add 0.7 grams of p-toluenesulfonate Acid, stir under reduced pressure and react until no bubbles are produced, add 200 grams of dimethylol propionic acid, mix well and then stir under reduced pressure until no bubbles are produced, add 400 grams of dimethylol propionic acid, mix well and reduce Stir under pressure until no bubbles are produced, add 700 grams of N,N-dimethylformamide, and after the solid intermediate product dissolves, add 48.7 grams of maleic anhydride, react at 80°C for 12 hours, then add 178.9 grams of acrylic acid, at 80°C React for 6 hours, after cooling down to room temperature, wash with water until the product is neutral, put it in a vacuum drying oven and dry at 6...

Embodiment 2

[0056] First add 8kg of water into the dissolution kettle, add 0.3kg of polyvinyl alcohol into the dissolution kettle under stirring to dissolve, then send the dissolved polyvinyl alcohol aqueous solution into the polymerization kettle, add 20g of emulsifier and stir evenly, then heat up to 70°C, Evenly add 20g ammonium persulfate and 1.41kg vinyl acetate dropwise to the polymerization kettle, the dropwise reaction time is 6 hours, after adding the attapulgite of 10g grafted end maleic acid ester group and vinyl hyperbranched polyester, continue React for 2 hours, after adding 15g of sodium bicarbonate, cool down to 50°C, add 10g of polyethyleneimine and 10g of trimethylolpropane-tris[3-(2-methyl aziridinyl) propionate], react After 2 hours, add 0.2kg plasticizer and 10g preservative, discharge after cooling down to room temperature, and obtain the interface treatment agent, the emulsifier is alkoxypolyethylene hydroxide ethanol, and the plasticizer is two Propylene glycol dib...

Embodiment 3

[0059] First add 8kg of water into the dissolution kettle, add 0.3kg of polyvinyl alcohol into the dissolution kettle under stirring to dissolve, then send the dissolved polyvinyl alcohol aqueous solution into the polymerization kettle, add 20g of emulsifier and stir evenly, then heat up to 70°C, Evenly add 20g ammonium persulfate and 1.41kg vinyl acetate dropwise to the polymerization kettle, the dropwise reaction time is 6 hours, after adding the attapulgite of 20g grafted end maleic acid ester group and vinyl hyperbranched polyester, continue React for 2 hours, after adding 15g of sodium bicarbonate, cool down to 50°C, add 20g of polyethyleneimine and 20g of trimethylolpropane-tris[3-(2-methyl aziridinyl) propionate], react After 2 hours, add 0.2kg plasticizer and 10g preservative, discharge after cooling down to room temperature, and obtain the interface treatment agent, the emulsifier is alkoxypolyethylene hydroxide ethanol, and the plasticizer is two Propylene glycol dib...

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Abstract

The invention provides a low-volatility environment-friendly building interior concrete interface treating agent. The low-volatility environment-friendly building interior concrete interface treating agent is prepared by carrying out a crosslinking reaction among attapulgite grafted with a maleic acid-terminated ester group and vinyl hyperbranched polyester, a vinyl acetate-ethylene copolymer emulsion, polyethyleneimine and trimethylolpropane-tris[3-(2-methylaziridinyl)propionate]. The low-volatility environment-friendly building interior concrete interface treating agent has low VOC (volatile organic compounds) content and good viscosity, and effectively solves the problems that the conventional interface treating agent is high in volatility and is not environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of interface agents, in particular to a low-volatility environmental protection building concrete interface treatment agent and a preparation method thereof. Background technique [0002] Concrete interface treatment agent is also called concrete interface adhesive, interface treatment agent, etc., referred to as interface agent. It is a surface treatment material used to enhance the surface performance of concrete, and it is a functional adhesive. Engineering practice has proved that the use of concrete interface treatment agent is an effective technical measure to prevent shelling, separation and peeling of the plaster layer and the base wall. The use and development of interface treatment agents has been rapid in recent years. In order to standardize product performance and ensure project quality, my country issued the building materials industry standard JC 907-2002 for concrete interface treatment agen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J3/24C08G83/00C08K5/3412C04B41/85C08L31/04C08L87/00C08L79/02
CPCC04B41/5024C04B41/85C08G83/001C08G83/005C08G83/006C08J3/246C08J2331/04C08J2479/02C08J2487/00C08K5/3412
Inventor 王兴元
Owner MEICHAO GROUP
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