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Long-acting dust sealing agent and preparation method thereof

A sealing agent and dust technology, which is applied in the field of long-acting dust sealing agent and its preparation, can solve the problems of affecting soil properties, dust sealing effect, and short dust sealing cycle, so as to achieve enhanced bonding effect, prolong the dust sealing cycle, and good dust sealing effect Effect

Inactive Publication Date: 2020-03-06
山东朗森高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Construction sites, mining areas, and roads are high-incidence areas of dust pollution. There are many types of dust sealants, but there are still many shortcomings, such as bionanofilm dust suppression. The cycle is short, and it will be automatically degraded within two days; although the dust suppression agent can achieve a good dust suppression effect, it will cause soil agglomeration and seriously affect the soil properties; there are also some polymer dust sealants There are problems such as poor water permeability and dust sealing effect greatly affected by man-made environment and natural environment.

Method used

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  • Long-acting dust sealing agent and preparation method thereof
  • Long-acting dust sealing agent and preparation method thereof
  • Long-acting dust sealing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The long-acting dust sealant consists of the following raw materials in parts by weight: 30 parts of plant cellulose activated by dimethoxypropionic anhydride, 10 parts of polycaprolactone, 13 parts of sodium lignosulfonate, and a viscosity of 8000 mPa 10 parts of s alginate, 3 parts of polyfumaric acid with a molecular weight of 3800, 1 part of starch grafted acrylate, 2 parts of sodium carbonate, 5 parts of starch modified polyacrylamide, 1 part of carboxymethyl starch, 120 parts of ionized water.

[0023] The preparation method of described long-acting dust sealing agent, comprises the following steps:

[0024] (1) adding sodium lignosulfonate to deionized water and stirring evenly, then adjusting the pH value of the solution to 8;

[0025] (2) Add plant cellulose and polycaprolactone into the solution, stir and mix evenly, add alginate, stir and react for 3 hours, then add polyfumaric acid, starch grafted acrylate, sodium carbonate and starch-modified polyacrylamid...

Embodiment 2

[0029] The long-acting dust sealant consists of the following raw materials in parts by weight: 50 parts of plant cellulose activated by dimethoxypropionic anhydride, 30 parts of polycaprolactone, 18 parts of sodium lignosulfonate, and a viscosity of 10000mPa 15 parts of s alginate, 5 parts of polyfumaric acid with a molecular weight of 10000, 3 parts of starch grafted acrylate, 5 parts of sodium carbonate, 12 parts of starch modified polyacrylamide, 3 parts of carboxymethyl starch, 150 parts of ionized water.

[0030] The preparation method of described long-acting dust sealing agent, comprises the following steps:

[0031] (1) adding sodium lignosulfonate to deionized water and stirring evenly, then adjusting the pH value of the solution to 9;

[0032] (2) Add plant cellulose and polycaprolactone into the solution, stir and mix evenly, add alginate, stir and react for 4 hours, then add polyfumaric acid, starch grafted acrylate, sodium carbonate and starch-modified polyacryl...

Embodiment 3

[0036] The long-acting dust sealant consists of the following raw materials in parts by weight: 40 parts of plant cellulose activated by dimethoxypropionic anhydride, 20 parts of polycaprolactone, 15 parts of sodium lignosulfonate, and a viscosity of 9000 mPa 12 parts of s alginate, 4 parts of polyfumaric acid with a molecular weight of 5000, 2 parts of starch grafted acrylate, 3 parts of sodium carbonate, 8 parts of starch modified polyacrylamide, 2 parts of carboxymethyl starch, 140 parts of ionized water.

[0037] The preparation method of described long-acting dust sealing agent, comprises the following steps:

[0038] (1) adding sodium lignosulfonate to deionized water and stirring evenly, then adjusting the pH value of the solution to 8.5;

[0039] (2) Add plant cellulose and polycaprolactone into the solution, stir and mix evenly, add alginate, stir for 3.5 hours, then add polyfumaric acid, starch grafted acrylate, sodium carbonate and starch-modified polypropylene Am...

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Abstract

The invention discloses a long-acting dust sealing agent and a preparation method thereof, and belongs to the technical field of dust sealing agents. The problems that an existing dust sealing agent is short in dust suppression period, prone to destroying soil and the like are solved. The dust sealing agent is composed of 30-50 parts of plant cellulose, 10-30 parts of polycaprolactone, 13-18 partsof sodium lignin sulfonate, alginate, polyfumaric acid, starch grafted acrylate, sodium carbonate, starch modified polyacrylamide, carboxymethyl starch and deionized water. The preparation method comprises the steps: adding sodium lignin sulfonate into deionized water to adjust the pH value of the solution to 8-9; adding plant cellulose and polycaprolactone into the solution, sequentially addingpolyfumaric acid, starch grafted acrylate, sodium carbonate and starch modified polyacrylamide, uniformly mixing, adjusting the pH value to be neutral, and then adding carboxymethyl starch; and filtering the obtained solution by a microfiltration membrane, and carrying out spray drying. The long-acting dust sealing agent can be used for roads, mining areas and other places with serious dust raising.

Description

technical field [0001] The invention relates to a long-acting dust sealing agent and a preparation method thereof, belonging to the technical field of dust sealing agents. Background technique [0002] Dust pollution is one of the world's public hazards. It has many impacts on humans and the environment, such as poisoning and irritation to humans, reducing visibility, causing equipment wear and corrosion, causing harm to crops, grasslands, and livestock, and has a great impact on environmental sanitation. protrude. Dust reduction is a symbol of urban cleanliness, which not only affects the lives of ordinary people, but also directly affects the quality of the air environment. [0003] Construction sites, mining areas, and roads are high-incidence areas of dust pollution. There are many types of dust sealants, but there are still many shortcomings, such as bionanofilm dust suppression. The cycle is short, and it will be automatically degraded within two days; although the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D101/02C09D167/04C09D197/00C09D105/04C09D7/61C09K3/22
CPCC08K2003/262C08L2205/035C09D101/02C09K3/22C09D7/61C08L67/04C08L97/005C08L5/04C08K3/26
Inventor 李刚张振伟
Owner 山东朗森高分子材料有限公司
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