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Method for preparing water-resistant white emulsion

A technology of white latex and emulsifier, applied in the field of white latex, can solve the problems of poor environmental protection performance, insufficient environmental protection, poor comprehensive performance, etc., and achieve the effect of meeting strict requirements, improving environmental protection and excellent comprehensive performance.

Active Publication Date: 2015-06-03
海安县紫石涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The vinyl acetate used in this glue is highly toxic and not environmentally friendly
[0007] Chinese invention patent application 201410004735.1 (public date: April 16, 2014) discloses a water-resistant white latex. The glue includes: polyvinyl alcohol PVA, vinyl acetate VAC, acrylic acid AA, acrylamide AM, ammonium persulfate , anionic emulsifier A-102, alkyl polyoxyethylene ether LCN-287 nonionic emulsifier; corn starch, transparent powder, plasticizer, diethylene glycol dibenzoate DEDB, preservative KSG-201, hydroxide Sodium, and methanol; but this glue still uses toxic vinyl acetate, which has poor environmental performance
[0008] At the same time, the related glue disclosed in the prior art has poor comprehensive performance in terms of use effect and cannot meet the stringent demands of the market.

Method used

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  • Method for preparing water-resistant white emulsion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] This embodiment relates to a kind of whitening-resistant emulsion and its preparation method; the whitening-resistant latex comprises the following components in parts by weight:

[0021] Polyvinyl acetate 700,

[0022] Vinyl acetate 300,

[0023] polyvinyl alcohol 120,

[0024] Dibutyl phthalate 60,

[0025] Diethylene glycol dibenzoate 20,

[0026] Octanol 10,

[0027] Isopropanol 30,

[0028] Allyl methacrylate 10,

[0029] Ethylene glycol dimethacrylate 5,

[0030] Toluene diisocyanate 3,

[0031] Sodium bicarbonate 35,

[0032] water 1400,

[0033] Emulsifier 40, the emulsifier is sodium oleate (i.e. sodium octadecenoate);

[0034] Composite initiator 5,

[0035] Methylolacrylamide 20,

[0036] waxy cornstarch 10,

[0037] sodium hypochlorite 2,

[0038] The composite initiator is composed of the following components in weight ratio: potassium persulfate, ammonium persulfate, sodium bisulfite, sodium persulfate, and kaolin in a weight ratio of 3:1:2:1...

Embodiment 2

[0046] This embodiment relates to a kind of water whitening latex. The preparation method of water whitening latex refers to Example 1. Water whitening latex includes the following components in parts by weight:

[0047] Polyvinyl acetate 1050,

[0048] Vinyl acetate 350,

[0049] polyvinyl alcohol 145,

[0050] Dibutyl phthalate 100,

[0051] Diethylene glycol dibenzoate 40,

[0052] Octanol 15,

[0053] Isopropanol 45,

[0054] Allyl methacrylate 25,

[0055] Ethylene glycol dimethacrylate 10,

[0056] Toluene diisocyanate 7,

[0057] Sodium bicarbonate 50,

[0058] water 1500,

[0059] Emulsifier 50, the emulsifier is sodium dodecylbenzenesulfonate;

[0060] Composite initiator 9,

[0061] Methylolacrylamide 32,

[0062] waxy cornstarch 15,

[0063] Sodium hypochlorite 7,

[0064] The composite initiator is composed of the following components in weight ratio: potassium persulfate, ammonium persulfate, sodium bisulfite, sodium persulfate, and kaolin in a weight ...

Embodiment 3

[0066] This embodiment relates to a kind of water whitening latex. The preparation method of water whitening latex refers to Example 1. Water whitening latex includes the following components in parts by weight:

[0067] Polyvinyl acetate 800,

[0068] Vinyl acetate 315,

[0069] Polyvinyl alcohol 125,

[0070] Dibutyl phthalate 80,

[0071] Diethylene glycol dibenzoate 25,

[0072] Octanol 12,

[0073] Isopropanol 35,

[0074] Allyl methacrylate 15,

[0075] Ethylene glycol dimethacrylate 7,

[0076] Toluene diisocyanate 4,

[0077] Sodium bicarbonate 39,

[0078] water 1450,

[0079] Emulsifier 45, the emulsifier is sodium dodecylbenzenesulfonate;

[0080] Composite initiator 6,

[0081] Methylolacrylamide 25,

[0082] waxy cornstarch 12,

[0083] Sodium hypochlorite 4,

[0084] The composite initiator is composed of components in the following weight ratios: potassium persulfate, ammonium persulfate, sodium bisulfite, sodium persulfate, and kaolin in a weight ...

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Abstract

The invention provides a method for preparing a water-resistant white emulsion. The method comprises the following steps of: obtaining proper water and polyvinyl alcohol, mixing, increasing the temperature till polyvinyl alcohol is completely dissolved, and keeping the temperature to obtain solution A; obtaining proper emulsifier, adding the emulsifier and remained water into the solution A by stirring, slowly adding proper vinyl acetate and proper compound initiator, increasing the temperature, and keeping the temperature; cooling; then, slowly adding the remained vinyl acetate and the remained initiator; increasing the temperature, and keeping the temperature; adding proper emulsifier and polyvinyl acetate, keeping the temperature, and cooling; adding sodium bicarbonate, dibutyl phthalate, diethylene glycol dibenzoate, octyl alcohol and isopropyl alcohol, and uniformly mixing to obtain solution B; and adding the remained emulsifier and the like into the solution B, uniformly mixing, keeping the temperature, and cooling to room temperature so as to obtain the water-resistant white emulsion. The water-resistant white emulsion prepared by the method disclosed by the invention has excellent comprehensive properties.

Description

technical field [0001] The invention relates to the technical field of white latex, in particular to a preparation method of water-resistant white latex. Background technique [0002] At present, the threshold industry of doors and windows is relatively low, and the competition in the industry is relatively chaotic. In order to improve product quality and market competitiveness, continuous improvement is required. High-grade energy-saving wooden doors and windows widely used in building exterior windows include: pure wood doors and windows, aluminum-clad wood doors and windows, and wood-aluminum composite doors and windows. The wood-aluminum composite doors and windows are more suitable for the rainy, high temperature and humid climate conditions in the south because the outer side is made of heat-insulating aluminum alloy profiles and the inner side is made of wood decorative profiles. At present, the structure of wood-aluminum composite doors and windows processed and pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F263/04C08F220/18C08F222/14C08F220/54C08F118/08C08F2/26C09J151/00C09J11/08C09J11/06
Inventor 董德明
Owner 海安县紫石涂料有限公司
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