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Preparation method of environmentally-friendly degradable anti-haze dust suppressant

A technology of dust suppressant and photodegradant, which is applied in the field of preparation of environment-friendly and degradable anti-haze dust suppressant, can solve the problems of ineffective removal, poor haze removal effect, laborious and labor-intensive, etc., and achieves low cost, convenient preparation, Simple operation effect

Active Publication Date: 2017-07-11
成都大蓉新材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, sprinkler trucks and water spray pumps are used to spray water multiple times on the demolition of old houses in the renovation of old urban areas, dust in buildings, urban roads, wharf storage yards, coal collection areas in coal mines, etc., and absorb the hydrophilicity in the air through water Fine particles and hydrophobic aerosols cannot be effectively removed, and the effect of removing haze is poor, and waste of water is also labor-intensive

Method used

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  • Preparation method of environmentally-friendly degradable anti-haze dust suppressant
  • Preparation method of environmentally-friendly degradable anti-haze dust suppressant

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Example 1: Preparation of acrylic resin

[0025] (1) Preparation of oligomers: take 1 / 5 volume of monomer, deionized water, initiator and chain transfer agent into the reaction kettle, raise the temperature to 70℃ and react for 2.5h, adjust the concentration of the solution in the reaction kettle with sodium hydroxide. The pH value reaches 7 and is filtered, and the obtained solid is an oligomer; wherein, the weight ratio of the initiator, chain transfer agent, monomer and deionized water is 0.05:0.05:20:55;

[0026] (2) Preparation of pre-emulsion: add the remaining volume of monomer and deionized water to the reaction kettle, adjust the speed to 300r / min, and stir rapidly for 30min to obtain a pre-emulsion; wherein, the oligomer, monomer, cross-linking monomer The weight ratio of body and deionized water is 8:30:3:40;

[0027] (3) Preparation of acrylic resin: take 1 / 5 volume of the pre-emulsion, add 1 / 3 volume of the initiator solution, stir and heat up to 75 °C for...

Embodiment 2

[0029] Example 2: Preparation of acrylic resin

[0030] (1) Preparation of oligomers: take 2 / 5 volume of monomer, deionized water, initiator and chain transfer agent into the reaction kettle, raise the temperature to 80 ℃ and react for 3.5 hours, adjust the solution in the reaction kettle with sodium hydroxide. The pH value reaches 8 and is filtered, and the obtained solid is an oligomer; wherein, the weight ratio of the initiator, chain transfer agent, monomer and deionized water is 0.05:0.05:40:75;

[0031] (2) Preparation of pre-emulsion: add the remaining volume of monomers and deionized water to the reaction kettle, adjust the speed to 400 r / min, and stir rapidly for 60 minutes to obtain a pre-emulsion; wherein, the oligomer, monomer, cross-linking monomer The weight ratio of body and deionized water is 15:60:10:60;

[0032] (3) Preparation of acrylic resin: take 1 / 5 volume of the pre-emulsion, add 1 / 3 volume of the initiator solution, stir and heat up to 85°C for 1 hour...

Embodiment 3

[0034] Example 3: Preparation of acrylic resin

[0035] (1) Preparation of oligomer: take 3 / 10 volume of monomer, deionized water, initiator and chain transfer agent into the reaction kettle, heat up to 72 °C and react for 3 hours, adjust the pH of the solution in the reaction kettle with sodium hydroxide value to 7.5 and filtered, the obtained solid is an oligomer; wherein, the weight ratio of the initiator, chain transfer agent, monomer and deionized water is 0.05:0.05:23:57;

[0036](2) Preparation of pre-emulsion: add the remaining volume of monomer and deionized water to the reaction kettle, adjust the speed to 320r / min, and stir rapidly for 35min to obtain a pre-emulsion; The weight ratio of body and deionized water is 10:34:5:42;

[0037] (3) Preparation of acrylic resin: take 1 / 5 volume of the pre-emulsion, add 1 / 3 volume of the initiator solution, stir and heat up to 78 °C for 0.8 h, and drop the remaining 4 / 5 volume of the pre-emulsion for 3 h at this temperature A...

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Abstract

The invention discloses a preparation method of an environmentally-friendly degradable anti-haze dust suppressant, the anti-haze dust suppressant is composed of acrylic resin, a defoaming agent, polyvinyl alcohol, absolute ethanol, a leveling agent, an antimycotic antibacterial agent, a light degradation agent and deionized water, a crosslinking monomer is added into the acrylic resin in the formula in the preparation process, the formed acrylic resin has excellent film-forming properties, the acrylic resin as matrix resin is combined with the polyvinyl alcohol and other substances to prepared the anti-haze dust suppressant, the anti-haze dust suppressant has consolidation, wetting and coagulation three functions, overcomes the defects that commonly used adhesion dust suppressants in the prior art cannot meet the solid joint effects; a new soap-free emulsion technology is cooperated in the preparation method, the effect of an emulsifier on the environment is reduced, at the same time, stable dust suppression agent emulsion can be obtained by precise control, the process problem for preparation of super water absorbent resin is solved, and product stability is realized.

Description

technical field [0001] The invention belongs to the field of environmental protection materials, and in particular relates to a preparation method of an environmentally friendly and degradable anti-haze and dust suppressant. Background technique [0002] Haze is mainly composed of sulfur dioxide, nitrogen oxides, volatile meltable glue and inhalable dust suspended particles. Haze is also called smog. aerosol system composed of substances. It can also make the atmosphere turbid, especially the large-scale haze weather and large-scale haze environment that have occurred frequently and for a long time recently, causing environmental pollution and directly affecting people's health. With the continuous improvement of people's living standards and the increasing awareness of environmental protection and health care, higher technical requirements have also been put forward for the control of smog and air pollution. Today, air pollution is the biggest livelihood problem. In the k...

Claims

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Application Information

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IPC IPC(8): C09K3/22C08F220/06C08F222/02C08F220/28C08F222/14C08F220/18C08F218/08C08F220/14C08F220/48C08F212/10C08F220/58C08F216/34C08F216/36B01D49/00
CPCB01D49/00C09K3/22C08F216/36C08F220/06C08F220/14C08F220/18C08F220/58C08F222/06C08F220/48C08F212/10C08F216/34C08F222/02C08F222/102C08F220/1806C08F220/281C08F220/1808C08F218/08C08F220/1804
Inventor 曲艳斌吴念曲亮靓
Owner 成都大蓉新材料有限责任公司
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