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Dispersible latex powder and preparation method thereof

A latex powder and dispersibility technology, applied in the field of building materials, can solve the problems of increased cost, normal production, pipeline blockage, etc., and achieve the effects of reducing viscosity, excellent fluidity, and prolonging storage period.

Active Publication Date: 2014-01-22
SHANXI JINDUN YUAN BUILDING MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Redispersible latex powder is widely used because of the above-mentioned properties. However, the redispersible latex powder on the market is prone to irreversible bonding, fusion and agglomeration. During production, pipelines are blocked and waste is produced. Especially many, and problems such as a large amount of adhesion on the wall surface of the spray dryer, resulting in increased costs and problems of normal production, and it is impossible to obtain redispersible latex powder with excellent fluidity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The dispersible latex powder in this embodiment consists of 1700 parts by weight of emulsion, 600 parts of glue, 800 parts of 707 acrylic blend emulsion, 100 parts of heavy calcium (heavy calcium carbonate), 6 parts of defoamer, and 200 parts of water , 2 parts of baking soda (sodium bicarbonate), the emulsion is made of 60 parts of high-strength structural adhesive (NJ-1), 1150 parts of vinyl acetate, 30 parts of polyvinyl alcohol, 80 parts of ethyl acrylate, 35 parts of kaolin, 50 parts of octyl acrylate, 3 parts of defoamer, 150 parts of butyl acrylate, 20 parts of emulsifier, 120 parts of phthalate dibutyl ester, 3 parts of sodium lauryl sulfate (K12), 1500 parts of water, ammonium persulfate 6 parts of sodium acetate, 15 parts of sodium acetate, and 2 parts of baking soda. The glue is made by mixing 600 parts of high-strength structural glue and 2400 parts of water.

[0024] The specific production steps are as follows:

[0025] 1. For the production of glue, put...

Embodiment 2

[0032] The dispersible latex powder in the present embodiment is mixed by weight: 1600 parts of emulsion, 650 parts of glue, 700 parts of 707 acrylic blend emulsion, 100 parts of heavy calcium, 6 parts of defoamer, 180 parts of water, and 2 parts of baking soda The emulsion consists of 60 parts of high-strength structural adhesive, 1100 parts of vinyl acetate, 30 parts of polyvinyl alcohol, 80 parts of ethyl acrylate, 35 parts of kaolin, 50 parts of octyl acrylate, 3 parts of defoaming agent, and 150 parts of butyl acrylate. 20 parts, 20 parts of emulsifier, 120 parts of phthalate, 3 parts of sodium lauryl sulfate, 1400 parts of water, 6 parts of ammonium persulfate, 15 parts of sodium acetate, and 2 parts of baking soda. The glue is made by mixing 700 parts of high-strength structural glue and 2450 parts of water.

[0033] The specific production steps are as follows:

[0034] 1. For the production of glue, put 2450 parts of water and 700 parts of high-strength structural gl...

Embodiment 3

[0040] The dispersible latex powder in the present embodiment is made of 1800 parts of emulsion, 700 parts of glue, 750 parts of 707 acrylic blend emulsion, 150 parts of heavy calcium, 6 parts of defoamer, 250 parts of water and 2 parts of baking soda by weight. The emulsion consists of 60 parts of high-strength structural adhesive, 1200 parts of vinyl acetate, 30 parts of polyvinyl alcohol, 80 parts of ethyl acrylate, 35 parts of kaolin, 50 parts of octyl acrylate, 3 parts of defoaming agent, and 150 parts of butyl acrylate. 20 parts of emulsifier, 120 parts of phthalate, 3 parts of sodium lauryl sulfate, 1600 parts of water, 6 parts of ammonium persulfate, 15 parts of sodium acetate, and 2 parts of baking soda. The glue is made by mixing 650 parts of high-strength structural glue and 2600 parts of water.

[0041] The specific production steps are as follows:

[0042] 1. For the production of glue, put 2600 parts of water and 650 parts of high-strength structural glue into t...

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PUM

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Abstract

The invention discloses a dispersible latex powder and a preparation method thereof. The latex powder is prepared through mixing of the following raw materials: emulsion, glue, 707 acrylic acid blending emulsion, heavy calcium, an antifoaming agent, water and sodium bicarbonate, wherein the emulsion is prepared through mixing of a high-strength structural adhesive, vinyl acetate, polyvinyl alcohol, ethyl acrylate, kaolin, n-octyl acrylate, an antifoaming agent, butyl acrylate, an emulsifier, dibutyl phthalate, sodium dodecyl sulfate, water, ammonium persulfate, sodium acetate and sodium bicarbonate, and the glue is prepared through mixing of water and the high-strength structural adhesive. The dispersible latex powder provided by the invention does not bond, fuse and cake in the process of application, has excellent fluidity and can ensure unique performance of building materials like concrete and cement mortar.

Description

technical field [0001] The present invention relates to a kind of construction material, more specifically, relates to a kind of redispersible latex powder used in construction industry. Background technique [0002] Redispersible latex powder, also known as redispersible resin powder, redispersible polymer powder, re-emulsifiable latex powder, etc., refers to the dehydration and pulverization of aqueous emulsion or solution containing polymer components by spray drying and other processes The polymer-based powder obtained after treatment can be redispersed in water after adding water to form a stable aqueous phase redispersion liquid, and has properties equivalent to the original polymer emulsion or solution. [0003] Redispersible latex powder is mainly used as an additive for concrete, cement mortar and other building materials. It can be used together with cement and other inorganic binders, which can significantly improve the flexural strength of the material, and can a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/00C08L33/00C08K13/02C08K3/26C08K3/34C04B26/04C04B24/26
Inventor 王涛
Owner SHANXI JINDUN YUAN BUILDING MATERIALS CO LTD
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