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Preparation method of antiseepage waterproof mortar

A technology of anti-seepage waterproof and mortar, which is applied in the field of preparation of anti-seepage waterproof mortar, which can solve the problems of poor use effect, prone to mold, insufficient viscosity, etc., and achieve good economic and social benefits, low cost, and impermeability high level effect

Inactive Publication Date: 2017-03-15
CHANGZHOU DINGRI ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem mainly solved by the present invention is: in view of the traditional anti-seepage mortar in the process of preparation and use, the viscosity is not enough and easy to be damaged, especially in the humid building environment, the phenomenon of mildew is easy to appear, and the use effect is not good. The invention provides a preparation method of impermeable waterproof mortar. In the method, chlorella and sodium hydroxide solution are mixed and frozen and thawed repeatedly to obtain a cell lysate, and the supernatant and precipitate are collected by centrifugation, and the precipitate extract After mixing with the supernatant, remove the protein to obtain antibacterial polysaccharides, add fatty alcohol polyoxyethylene ether, polyethylene glycol, etc. into the beaker, add sodium methyl silicate after ultrasonic dispersion, and stir to obtain a waterproof emulsion. Add salt cement, borax, etc. into the mixer and stir the mixed slurry obtained by adding waterproof emulsion, guar gum, etc. to high-speed stirring to obtain impermeable waterproof mortar. The process of the invention is simple, and the prepared waterproof mortar has strong cohesive force. The compressive strength is high, and the building surface poured with the waterproof mortar of the present invention has excellent waterproof performance, which is suitable for large-scale popularization and application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0016] Weigh 50g of chlorella and add it to a beaker, then add 300mL of 4% sodium hydroxide solution, stir and mix for 2 minutes, put it in a freezer, and freeze it at -40°C for 20 minutes, take out the beaker and place it quickly Thaw in a water bath at 37°C for 10 minutes, repeat freezing and thawing 3 times to obtain chlorella cell lysate, put the cell lysate in a centrifuge, and centrifuge at 3000r / min for 20min, collect the supernatant and precipitate respectively; Put it in a beaker, add 200mL deionized water, heat it to boiling, keep it warm for 2h, filter after heating, collect the filtrate, and mix it with the above supernatant, then add 300mL absolute ethanol, stir for 10min, centrifuge Separate, collect the precipitate, and put it in a beaker, then add 200m mass fraction of 3% trichloroacetic acid solution, stir for 20min, then transfer to a centrifuge, centrifuge at 5000r / min for 10min, collect the supernatant, and place Spray-dry in a spray dryer to obtain a dried...

example 2

[0019]Weigh 60g of chlorella and add it to the beaker, then add 400mL of 4% sodium hydroxide solution, stir and mix for 4min, put it in the freezer, freeze at -30°C for 30min, take out the beaker and place it quickly Thaw in a water bath at 40°C for 15 minutes, repeat freezing and thawing 5 times to obtain chlorella cell lysate, put the cell lysate in a centrifuge, and centrifuge at 4000r / min for 30min, collect the supernatant and precipitate respectively; Put it in a beaker, add 300mL deionized water, heat it to boiling, keep it warm for 3h, filter after heating, collect the filtrate, mix it with the above supernatant, add 400mL absolute ethanol, stir for 20min, centrifuge Separate, collect the precipitate, and place it in a beaker, then add 300m mass fraction of 3% trichloroacetic acid solution, stir for 30min, then transfer to a centrifuge, centrifuge at 6000r / min for 20min, collect the supernatant, and place Spray-dry in a spray dryer to obtain a dried product for subseque...

example 3

[0022] Weigh 55g of chlorella and add it to a beaker, then add 350mL of 4% sodium hydroxide solution, stir and mix for 3 minutes, place in a freezer, freeze at -35°C for 25 minutes, take out the beaker and place it quickly Thaw in a water bath at 38°C for 13 minutes, repeat the freezing and thawing 4 times to obtain the chlorella cell lysate, put the cell lysate in a centrifuge, and centrifuge at 3500r / min for 25min, collect the supernatant and precipitate respectively; Put it in a beaker, add 250mL deionized water, heat it to boiling, keep it warm for 3h, filter after heating, collect the filtrate, and mix it with the above supernatant, then add 350mL absolute ethanol, stir for 15min, centrifuge Separate, collect the precipitate, and put it in a beaker, then add 250mM mass fraction of 3% trichloroacetic acid solution, stir for 25min, then transfer to a centrifuge, centrifuge at 5500r / min for 15min, collect the supernatant, and place Spray-dry in a spray dryer to obtain a drie...

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Abstract

The invention discloses a preparation method of an antiseepage waterproof mortar, and belongs to the technical field of waterproof mortar preparation. The preparation method comprises following steps: chlorella and a sodium hydroxide solution are mixed, and are subjected to repeated freezing and thawing so as to obtain a cell lysis solution, the cell lysis buffer is subjected to centrifugation so as to obtain a supernate and a precipitate; the precipitate is extracted, an obtained precipitate extracted solution is mixed with the supernate, and proteins are removed so as to obtain antibacterial polysaccharides; materials such as AEO and polyethylene glycol are delivered into a beaker respectively, and sodium methyl silicate is added after ultrasonic dispersion so as to obtain a waterproof emulsion via stirring; Portland cement, borax, and the like are delivered into a mixer for mixing so as to obtain a mixed slurry; the waterproof emulsion, guar gum, and the like are added for high speed stirring so as to obtain the antiseepage waterproof mortar. The preparation method is simple; the obtained antiseepage waterproof mortar is high in adhesion stress, and compressive strength; the surfaces of buildings obtained via pouring of the antiseepage waterproof mortar possess excellent water resistance; and the preparation method is suitable for large scale popularization and application.

Description

technical field [0001] The invention discloses a method for preparing anti-seepage and waterproof mortar, which belongs to the technical field of waterproof mortar preparation. Background technique [0002] Waterproof mortar is also called cationic neoprene latex waterproof and anticorrosion material. Cationic chloroprene latex is a polymer molecule modified base polymer waterproof and anticorrosion system. It is a high polymer latex composed of imported epoxy resin modified latex, domestic neoprene latex, polyacrylate, synthetic rubber, various emulsifiers, modified latex, etc. It is a polymer waterproof and anti-corrosion material made by adding base materials, appropriate amount of chemical additives and fillers, and adding them through mastication, mixing, calendering and other processes. Select imported materials and domestic high-quality auxiliary materials, high-quality products produced in accordance with the highest level of national industry standards, recommende...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/24C04B103/65
CPCC04B28/24C04B2103/65C04B2201/50
Inventor 周丽花孟中立赵玲玲
Owner CHANGZHOU DINGRI ENVIRONMENTAL PROTECTION TECH
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