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Polymer dust suppression emulsion preparing method and dust suppression pulp

A polymer and emulsion technology, applied in chemical instruments and methods, coatings, other chemical processes, etc., can solve the problems of wind erosion resistance, poor wiper resistance and durability, failure to effectively cover and lock the material surface, and lack of restoration Ecological long-term thinking and other issues, to achieve the effect of favorable hair growth, strong adaptability to temperature and climate, and low cost

Inactive Publication Date: 2019-03-29
王震勇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (2) The raw materials required for the production of dust suppressants are not easy to obtain, the cost is high, and the product market acceptance is low;
[0006] (3) It is inconvenient to use and relatively simple in performance;
[0007] (4) Poor wind erosion resistance, wiper resistance and durability;
[0008] (5) The implementation of existing dust suppressant products in the market is basically limited to treating the symptoms but not the root cause, and lacks a long-term idea of ​​restoring the ecology;
[0009] (6) The dust suppressant after spraying solidifies slowly, and fails to effectively cover and lock the surface of the material

Method used

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  • Polymer dust suppression emulsion preparing method and dust suppression pulp
  • Polymer dust suppression emulsion preparing method and dust suppression pulp
  • Polymer dust suppression emulsion preparing method and dust suppression pulp

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preparation example Construction

[0033] The preparation method of polymer dust-suppressing emulsion provided by the invention may further comprise the steps:

[0034] (1) Pre-emulsion preparation:

[0035] Mix the soft monomer, hard monomer and water-based monomer with an emulsifier solution, add NaOH particles, cover to reduce the overflow of irritating odor, raise the temperature to 40-60°C, and magnetically stir and mix for 20-30 minutes at the same time to obtain a uniform and non-layered product. The white monomer pre-emulsion.

[0036] In this step, the mass ratio of the soft monomer and the hard monomer is 6-8:4-2, the total amount of the two is M, and the quality of the water-based functional monomer is the total amount of the soft monomer and the hard monomer. 2-4% of the mass, that is, the mass of the water-based functional monomer is 2-4%×M, the mass of the emulsifier is 4-6%×M, and the mass of the NaOH is 0.5-1.0%×M.

[0037] Wherein, the soft monomer can be butyl acrylate, ethyl acrylate or iso...

Embodiment 1

[0070] (1) Pre-emulsion preparation:

[0071] Select 750g of butyl acrylate and 250g of methyl acrylate, the total mass of the two is 1000g, and store them in a sealed manner;

[0072] The lipophilic emulsifier is mixed with purified water to prepare a 3% emulsifier solution (the internal ratio of the emulsifier to mop-10 is 20%);

[0073] Put 750g of butyl acrylate, 250g of butyl acrylate, 30g of acrylamide, and 50g of an emulsifier solution with a concentration of 3% into the container, then add 8g of NaOH particles, cover it to reduce the overflow of irritating odor, heat up to 50°C, and magnetically Stir for 20 min to obtain the white monomer pre-emulsion that is uniform and non-layered.

[0074] (2) Seed emulsification:

[0075] In another container, add about 1 / 4 of the pre-emulsion prepared in the above steps, add 50g of glycerin, stir and control the stirring speed (about 300rpm), so that the system is further dispersed evenly, then heat up to 75°C, and then add pers...

Embodiment 2

[0087] (1) Pre-emulsion preparation:

[0088] Select 750g of ethyl acrylate and 250g of vinyl acetate, the total mass of which is 1000g, and store in a sealed manner;

[0089] The lipophilic emulsifier is mixed with purified water to prepare a 3% emulsifier solution (the internal ratio of the emulsifier to mop-10 is 20%);

[0090] Put 750g of butyl acrylate, 250g of butyl acrylate, 30g of acrylamide, and 50g of an emulsifier solution with a concentration of 3% into the container, then add 8g of NaOH particles, cover it to reduce the overflow of irritating odor, heat up to 50°C, and magnetically Stir for 30 min to obtain the white monomer pre-emulsion that is uniform and non-layered.

[0091] (2) Seed emulsification:

[0092] In another container, add about 1 / 3 of the mass of the pre-emulsion prepared in the above steps, add 40g of glycerin, stir and control the stirring speed (about 300rpm), so that the system is further dispersed evenly, then raise the temperature to 72°C, ...

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Abstract

A polymer dust suppression emulsion preparing method is provided, including mixing a soft monomer, a rigid monomer and an aqueous monomer with an emulsifier solution, adding NaOH particles, and heating and stirring the mixture to obtain a white monomer pre-emulsion; adding a small amount of the pre-emulsion and glycerin into a container, fully dispersing the mixture, then heating the mixture, andadding a small amount of an initiator for reaction to form a seed emulsion; adding dropwise the rest pre-emulsion, the initiator and glycerin into the seed emulsion, and cooling after the reaction isfinished to form a preliminarily emulsified solution; weighing acrylamide having a concentration of 10%, adding an initiator after heating, and stirring the mixture with a uniform speed to obtain a polyacrylamide graft product; and mixing the preliminarily emulsified solution with the polyacrylamide graft product, heating the mixture, and then adding an initiator to perform a secondary grafting reaction so as to form a finished product of the dust suppression emulsion. Dust suppression pulp can be formed by mixing the dust suppression emulsion and paper pulp. The dust suppression emulsion andpulp are low in raw material cost, high in water absorption and moisturization performance, and resistant to wind erosion, rain wash, acids and alkalis, and can meet environmental protection requirements.

Description

technical field [0001] The invention belongs to the technical field of dust suppression, and in particular relates to a preparation method of a polymer dust suppression emulsion and a dust suppression paper pulp. Background technique [0002] Synthetic polymer sand-fixing and dust-suppressing materials are a new type of dust-suppressing materials developed in recent years. In essence, they belong to water-oil two-soluble cements. The use of polymers to fix quicksand and dust has many excellent properties, so it has attracted widespread attention. With the rapid development of chemical products, various surfactants, superabsorbents, dust sticky agents and other polymer materials are widely used. , cost-effective and environmentally friendly direction. [0003] my country started the research on dust suppressants in the 1980s. Although some progress has been made, there are still many problems to be solved in the study of dust suppressants with large-scale use and promotion ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F285/00C08F220/56C09K3/22C09D101/02C09D7/65
CPCC08F285/00C09D7/65C09D101/02C09K3/22C08F220/56C08L51/003
Inventor 王震勇
Owner 王震勇
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