Anti-seepage coating layer with heavy metal chelating function as well as composition and application thereof

An anti-seepage coating and heavy metal technology, applied in the field of environmental governance, can solve the problems of heavy metal pollution in groundwater, uplift and rupture of anti-seepage membrane, etc., and achieve the effect of increasing mechanical strength, high efficiency and lasting effect, and low cost

Inactive Publication Date: 2017-08-29
CHONGQING UNIV +1
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current anti-seepage membrane is mostly replaced by geomembrane. This kind of membrane adopts high-density polyethylene single-layer or double-layer anti-seepage membrane technology, which is brittle. During construction and use, cracks will occur due to induced stress, especially when groundwater When the supporting force of the membrane is greater tha

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Anti-seepage coating layer with heavy metal chelating function as well as composition and application thereof
  • Anti-seepage coating layer with heavy metal chelating function as well as composition and application thereof
  • Anti-seepage coating layer with heavy metal chelating function as well as composition and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0040] Such as figure 1 As shown, the method for preparing an impermeable coating with heavy metal chelating function provided by the embodiment of the present invention includes the following steps:

[0041] S101: Through active group siloxane, long-chain alkyl derivatives and polyamine structure compounds, all have a ring-opening reaction with the polyepoxy backbone molecule or the epoxy ring of the polyepoxy polymer;

[0042] S102: The polyether modified siloxane chain Rn and the long-chain alkyl group R f And polyamine structure R m Introduced into the polymer chain, polyepoxy main chain: polyether modified siloxane chain R n :Long chain alkyl R f :Polyamine chain R m The ratio is 5-50:1-10:1-10:1-10.

[0043] The present invention also provides an anti-seepage coating composition with heavy metal chelating function. The anti-seepage layer is combined with micro-nano particles, vinyl silicone oil, hydrogen-containing silicone oil and a catalyst to form an anti-seepage coating com...

Example Embodiment

[0058] Example 1

[0059] The anti-seepage coating with heavy metal chelating function provided by the embodiment of the present invention has the following structural characteristics:

[0060]

[0061] Wherein, x, y, z, g are all integers from 10-500;

[0062] R n Is aminosiloxane;

[0063] R f Is a hexyl hydroxy alcohol;

[0064] R m Is ethylenediamine;

[0065] The preparation method of the impermeable coating in the embodiment of the present invention is as follows: double parts of A epoxy resin 828, aminosiloxane, hexyl hydroxy alcohol, and ethylene diamine, with a molar ratio of 50:10:10:10, stirring and mixing uniformly, It is an impermeable layer with heavy metal chelating function.

[0066] The preparation method of the impermeable coating composition of the embodiment of the present invention is as follows: the impermeable coating, vinyl silicone oil, methyl silicone resin, diatomaceous earth, hydrogen-containing silicone oil, reaction inhibitor: chloroplatinic acid, molar rati...

Example Embodiment

[0069] Example 2

[0070] The anti-seepage coating with heavy metal chelating function provided by the embodiment of the present invention has the following structural characteristics:

[0071]

[0072] Wherein, x, y, z, g are all integers from 10-500;

[0073] R n Is a hydroxysiloxane;

[0074] R f Is dodecyl hydroxy alcohol;

[0075] R m Is diethylene triamine;

[0076] The preparation method of the impermeable coating in the embodiment of the present invention is: trimethylolpropane triglycidyl ether, hydroxysiloxane, lauryl hydroxy alcohol, diethylene triamine, and a molar ratio of 5:2:3:1 Mix and stir evenly to obtain the impermeable coating composition. .

[0077] The preparation method of the impermeable coating composition of the embodiment of the present invention is as follows: the impermeable coating, vinyl silicone oil, phenyl silicone resin, sepiolite, hydrogen-containing silicone oil, reaction inhibitor, caster catalyst, and molar ratio Mix the mixture at 50:30:10:10:5:1:...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention belongs to the technical field of environment control, and discloses an anti-seepage coating layer with a heavy metal chelating function as well as a composition and application thereof. The anti-seepage coating layer is provided with a plurality of heavy metal bonding sites, and integrates multiple functions, such as heavy metal chelating function, adhering function, hydrophobic function, and film forming function. The composition of the coating layer has the advantages that micro-nano particles and macromolecular film forming matters are wound and chemically bonded together, so as to form a stable hydrophobic anti-seepage macromolecular film; the usage amount is small, the cost is low, and the stabilizing effect of heavy metal is efficient and lasting.

Description

technical field [0001] The invention belongs to the technical field of environmental treatment, and in particular relates to an anti-seepage coating with heavy metal chelating function, its composition and application. Background technique [0002] In hazardous waste landfills, industrial waste dumps and other areas where heavy metals accumulate and have high concentrations of heavy metals, impermeable membranes are particularly important, especially when the groundwater level is higher than the disposal site, and the groundwater seeps and flows into the landfill along the pores. On the one hand, it increases sewage Treatment capacity and operating costs, on the other hand, harmful leachate, especially heavy metal ions redissolved, causing groundwater pollution. Therefore, in places such as hazardous waste landfills and industrial waste dumps, anti-seepage membranes are laid on the bottom, sides and even the top to prevent the penetration of harmful leachate. [0003] The c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C09D183/07C09D183/05C09D183/04C09D163/00C08G59/14C08G59/16
CPCC09D183/04C08G59/1433C08G59/1444C08G59/1455C08G59/1477C08G59/1483C08K2003/2296C08L2205/025C08L2205/035C09D163/00C08L83/04C08L63/00
Inventor 袁浩窦建军陈刚才肖定书叶姜瑜
Owner CHONGQING UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap