Environment-friendly dust covering agent and preparation method thereof

A covering agent and an environment-friendly technology, applied in the field of environment-friendly dust inhibitor and its preparation, can solve the problems of high processing requirements of straw and difficult product preservation, and achieve the effects of low cost and improved storage time.

Inactive Publication Date: 2012-02-15
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

ZL03121134.8 The dust suppressant prepared by using corn stalks, starch, lime powder and additives has the advantages of good dust suppression effect and low cost, but there are problems such as difficult preservation of the product and high requirements for straw processing. In order to solve these problems and further reduce the cost , special application for the invention patent

Method used

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  • Environment-friendly dust covering agent and preparation method thereof
  • Environment-friendly dust covering agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: put 2g of crushed corn stalks and straw leaves into 100g water according to 1:1 and stir; after the temperature of the solution rises to 30°C, add 3.5g of industrial starch and stir; after the temperature of the solution rises to 55°C, Add 0.1g of sodium hydroxide and continue stirring; when the temperature of the solution rises to 70°C, add 0.1g of polyvinyl alcohol and stir for 10 minutes, then stop stirring and let it cool naturally.

Embodiment 2

[0016] Example 2: Put 3g of crushed corn stalks and straw leaves into 100g of water at a ratio of 1:1; when the temperature of the solution rises to 35°C, add 4g of industrial starch; after the temperature of the solution rises to 55°C, add 0.2g Sodium hydroxide, continue to stir; after the temperature of the solution rises to 75°C, add 0.2g of polyvinyl alcohol, stir for 10 minutes, stop stirring, and let it cool naturally.

Embodiment 3

[0017] Example 3: Put 5g of crushed corn stalks and straw leaves into 100g of water and stir in 1:1; when the temperature of the solution rises to 35°C, add 5g of industrial starch and stir; after the temperature of the solution rises to 60°C, add 0.2g sodium hydroxide, keep stirring; after the temperature of the solution rises to 80°C, add 0.1g polyvinyl alcohol, stir for 10 minutes, stop stirring, and let it cool naturally.

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Abstract

An environment-friendly dust covering agent and a preparation method thereof belong to the field of dust-suppressing materials. The components of the environment-friendly dust covering agent include water, corn straw, industrial starch, alkaline substance and polyvinyl alcohol according to the weight ratio of 100:2 to 6:2 to 8:0.1 to 0.3:0.1 to 0.5. The preparation method includes the following steps: the ground corn straw is added into the water; after the water is heated until the temperature is increased to 30 DEG C to 35 DEG C, the industrial starch is added, and solution containing the starch and the straw is produced under heating and stirring conditions; after the temperature is increased to 50 DEG C to 60 DEG C, the alkaline substance is added, and stirring is constantly carried out; after the temperature is increased to 65 DEG C to 90 DEG C, the polyvinyl alcohol is added, stirring is carried out for 10 minutes and then stopped, and after natural cooling, the covering agent is prepared. The PH value of the covering agent is between 8 and 9; the viscosity number of the covering agent is between 160mPa.s and 442mPa.s, so the covering agent has higher stickiness; and the storage time of the covering agent is increased to 15 days, so the preservability of the product is effectively enhanced.

Description

technical field [0001] The invention relates to an environment-friendly dust suppressant and a preparation method thereof, belonging to the field of dust suppression materials. technical background [0002] With the development of society and the improvement of people's living standards, environmental protection and effective use of resources have become the focus of common attention of all countries in the world. Due to the environmental pollution caused by flying dust and the waste of resources brought by traditional dust suppression technology, as well as the secondary pollution caused by it, it has attracted more and more attention from people from all walks of life. my country is currently in a period of rapid economic development with many construction projects. The dust pollution caused by various municipal engineering sites, material sites, demolition sites and other open dust sites such as bare ground has greatly endangered people's normal life and health. destroyed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/22
Inventor 梁文俊马琳李坚张超
Owner BEIJING UNIV OF TECH
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