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Preparation method of white latex

A technology of white latex and emulsifier, applied in the direction of adhesives, graft polymer adhesives, adhesive types, etc., can solve the problems of poor environmental protection performance, insufficient environmental protection, poor comprehensive performance, etc., to meet strict requirements, improve Environmentally friendly and comprehensive performance

Inactive Publication Date: 2015-05-20
江苏中丽新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The vinyl acetate used in this white latex is highly toxic and not environmentally friendly.
[0006] Chinese invention patent application 201410004735.1 (public date: April 16, 2014) discloses an environmentally friendly white latex, which includes: polyvinyl alcohol PVA, vinyl acetate VAC, acrylic acid AA, acrylamide AM, Ammonium sulfate, anionic emulsifier A-102, alkyl polyoxyethylene ether LCN-287 nonionic emulsifier; corn starch, transparent powder, plasticizer, diethylene glycol dibenzoate DEDB, preservative KSG-201, Sodium hydroxide, and methanol; but this white latex still uses toxic vinyl acetate, which has poor environmental performance
[0007] At the same time, the relevant white latex disclosed in the prior art has poor overall performance in terms of use effect, and cannot yet meet the relevant requirements for the quality of high-grade energy-saving wooden doors and windows.

Method used

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  • Preparation method of white latex
  • Preparation method of white latex

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] This embodiment relates to a kind of white latex and preparation method thereof; White latex comprises each component of following parts by weight:

[0020] Polyvinyl acetate 700,

[0021] Vinyl acetate 300,

[0022] polyvinyl alcohol 120,

[0023] Dibutyl phthalate 60,

[0024] Diethylene glycol dibenzoate 20,

[0025] Octanol 10,

[0026] Isopropanol 30,

[0027] Allyl methacrylate 10,

[0028] Ethylene glycol dimethacrylate 5,

[0029] Toluene diisocyanate 3,

[0030] Sodium bicarbonate 35,

[0031] water 1400,

[0032] Emulsifier 40, the emulsifier is sodium oleate (i.e. sodium octadecenoate);

[0033] Initiator 5, the initiator is ammonium persulfate;

[0034] Methylolacrylamide 20,

[0035] waxy cornstarch 10,

[0036] Sodium hypochlorite 2.

[0037] All components involved in this example can be obtained through public commercial channels. The preparation method step of white latex in the present embodiment is as follows:

[0038] Step 1, under st...

Embodiment 2

[0044] This embodiment relates to a kind of white latex, the preparation method of white latex refers to embodiment 1, and white latex comprises each component of following parts by weight:

[0045] Polyvinyl acetate 1050,

[0046] Vinyl acetate 350,

[0047] polyvinyl alcohol 145,

[0048] Dibutyl phthalate 100,

[0049] Diethylene glycol dibenzoate 40,

[0050] Octanol 15,

[0051] Isopropanol 45,

[0052] Allyl methacrylate 25,

[0053] Ethylene glycol dimethacrylate 10,

[0054] Toluene diisocyanate 7,

[0055] Sodium bicarbonate 50,

[0056]water 1500,

[0057] Emulsifier 50, the emulsifier is sodium dodecylbenzenesulfonate;

[0058] Initiator 10, the initiator is ammonium persulfate;

[0059] Methylolacrylamide 32,

[0060] waxy cornstarch 15,

[0061] Sodium hypochlorite7.

Embodiment 3

[0063] This embodiment relates to a kind of white latex, the preparation method of white latex refers to embodiment 1, and white latex comprises each component of following parts by weight:

[0064] Polyvinyl acetate 800,

[0065] Vinyl acetate 315,

[0066] Polyvinyl alcohol 125,

[0067] Dibutyl phthalate 80,

[0068] Diethylene glycol dibenzoate 25,

[0069] Octanol 12,

[0070] Isopropanol 35,

[0071] Allyl methacrylate 15,

[0072] Ethylene glycol dimethacrylate 7,

[0073] Toluene diisocyanate 4,

[0074] Sodium bicarbonate 39,

[0075] water 1450,

[0076] Emulsifier 45, the emulsifier is sodium dodecylbenzenesulfonate;

[0077] Initiator 6, the initiator is potassium persulfate;

[0078] Methylolacrylamide 25,

[0079] waxy cornstarch 12,

[0080] Sodium hypochlorite4.

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Abstract

The invention provides a preparation method of white latex. The method comprises the following steps: taking water and vinol, mixing and increasing the temperature; taking an emulgator, adding the emulgator and residual water to the solution under the condition of stirring, then slowly adding vinyl acetate and an initiator, increasing the temperature and preserving heat; cooling; after that adding residual vinyl acetate and residual initiator; adding the emulgator and polyvinyl acetate; adding sodium bicarbonate, dibutyl phthalate, diethylene glycol dibenzoate, octanol and isopropanol; adding residual emulgator, allyl methacrylate, glycol dimethacrylate, toluene diisocynate, N-hydroxymethyl acrylamide, waxy maize starch and sodium hypochlorite to obtain the white latex. The content of vinyl acetate in the white latex prepared by the preparation method is greatly reduced, the environmental protection property of a product is improved fundamentally, and the white latex is superior in combination property.

Description

technical field [0001] The invention relates to the technical field of chemical materials, in particular to a preparation method of 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 produced in ...

Claims

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Application Information

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IPC IPC(8): C08F263/04C08F220/18C08F222/14C08F220/58C08F18/08C09J151/00C09J11/06C09J11/08
Inventor 胡浩
Owner 江苏中丽新材料有限公司
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