Washable anti-aging carboxy styrene-butadiene latex for carpet back coating as well as preparation method and application of latex

A technology of carboxylated styrene-butadiene latex and emulsifier, which is applied in the directions of coatings, adhesives, textiles and paper making, etc., can solve the problem of latex aging control and the control method of product washing resistance, not mentioned anionic emulsifier and other problems, to achieve the effect of good water resistance and good thickening

Active Publication Date: 2012-10-17
JIANGSU LITIAN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In the above two preparation methods of carboxylated styrene-butadiene latex, anionic emulsifiers and nonionic emulsifiers are used in combination, and the use of anionic emulsifiers alone is not mentioned.
At the same time, there is no mention of the aging problem control method of latex in the preparation process and the control method of product washing resistance.

Method used

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  • Washable anti-aging carboxy styrene-butadiene latex for carpet back coating as well as preparation method and application of latex
  • Washable anti-aging carboxy styrene-butadiene latex for carpet back coating as well as preparation method and application of latex
  • Washable anti-aging carboxy styrene-butadiene latex for carpet back coating as well as preparation method and application of latex

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 55.5 parts of main monomer butadiene, 40 parts of styrene; 1 part of auxiliary monomer methyl acrylate; 2 parts of functional monomer acrylic acid, 1.5 parts of methacrylic acid; anionic emulsifier 1.5 parts of sodium alkyl diphenyl ether disulfonate 0.5 parts of sodium dodecylbenzenesulfonate; 0.8 parts of molecular weight regulator tertiary dodecyl mercaptan; 0.16 parts of reactive anti-aging agent oxalamidodipropionate; 0.005 parts of electrolyte NaCl, chelating agent EDTA-2Na0 .004 parts, PH regulator NaHCO 3 0.005 parts, 0.01 parts of sodium thiram; 0.4 parts of thermal decomposition type initiator potassium persulfate, about 105 parts of desalted water.

[0026] Under vacuum, add an emulsifier aqueous solution (1.5 parts of sodium alkyl diphenyl ether disulfonate; all electrolytes, chelating agents, pH regulators; 12 parts of desalinated water), 76 parts of desalinated water, styrene 40 parts, 1 part of methyl acrylate, 0.16 parts of oxalamidodipropionate, 2 parts ...

Embodiment 2

[0028] Main monomer butadiene 45.5 parts, styrene 50 parts; auxiliary monomer methyl methacrylate 1 part; functional monomer acrylic acid 1.5 parts, itaconic acid 2.0 parts; anionic emulsifier alkyl diphenyl ether disulfonic acid 1.5 parts of sodium, 0.5 parts of sodium dodecylbenzenesulfonate; 0.6 parts of molecular weight regulator tertiary dodecyl mercaptan; 0.16 parts of reactive antioxidant oxalamidodipropionate; 0.005 parts of electrolyte NaCl, chelating agent EDTA -4Na 0.004 parts, PH regulator Na 2 CO 3 0.005 parts, 0.01 parts of thiram sodium; 0.4 parts of thermal decomposition type initiator potassium persulfate, and 105 parts of desalted water by weight.

[0029] Under vacuum, add an emulsifier aqueous solution (1.5 parts of sodium alkyl diphenyl ether disulfonate; all electrolytes, chelating agents, pH regulators; 12 parts of desalinated water), 76 parts of desalinated water, styrene 50 parts, 1 part of methyl methacrylate, 0.16 parts of oxalamidodipropionate, 1....

Embodiment 3

[0031] 60.5 parts of main monomer butadiene, 35 parts of styrene; 1 part of auxiliary monomer butyl acrylate; 3.5 parts of functional monomer acrylic acid; 1.6 parts of anionic emulsifier sodium alkyl diphenyl ether disulfonate, sodium benzenesulfonate 0.5 parts; 0.8 parts of molecular weight regulator tert-dodecyl mercaptan; 0.18 parts of reactive anti-aging agent tert-butylmethylphenol; 0.005 parts of electrolytic NaCl, 0.004 parts of chelating agent EDTA-2Na, pH regulator Na 2 CO 3 0.005 parts, 0.01 parts of sodium thiram; 0.6 parts of thermal decomposition initiator ammonium persulfate, about 105 parts of desalted water.

[0032] Under vacuum, add an emulsifier aqueous solution (1.6 parts of sodium alkyl diphenyl ether disulfonate; all electrolytes, chelating agents, pH regulators; 12 parts of desalinated water), 76 parts of desalinated water, styrene 3.5 parts, 1 part of butyl acrylate, 0.18 parts of butyl methylphenol, 3.5 parts of acrylic acid, 0.8 parts of tertiary do...

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Abstract

The invention belongs to the field of chemical industry and discloses washable anti-aging carboxy styrene-butadiene latex for carpet back coating as well as the preparation method and application of the latex. The carboxy styrene-butadiene latex is characterized by comprising the following components in parts by weight: 100 parts of monomers, 1-3 parts of emulsifier, 0.3-1 part of molecular weight regulator, 0.15-0.2 part of reactive anti-aging agent, 0.2-0.5 part of initiator and 90-120 parts of desalted water, wherein the monomers include main monomers consisting of 14-70 parts of butadiene and 30-85 parts of styrene, 0-5 parts of auxiliary monomers and 1-5 parts of functional monomers. An intermittent emulsion polymerization way and a method that the emulsifier, the initiator and the like are added in batches are adopted in the polymerization process, and a pH regulator, a stopping agent and the like are added after vacuum flashing and degassing for synthesis so as to prepare the carboxy styrene-butadiene latex. The carboxy styrene-butadiene latex is applied to the carpet back coating process to be used as an adhesive, and has better thickening property, dyeing property and cohesiveness if matched with pulp.

Description

technical field [0001] The invention belongs to the field of chemical industry, and relates to a carboxylated styrene-butadiene latex for washing and anti-aging carpet back coating, a preparation method and application thereof. Background technique [0002] Carpet is a special fabric variety that is divided into two categories: tufted and needlepunched, both of which must be back-coated with an adhesive. Its main purpose is to fix the fibers and prevent the fibers from falling off; keep the size of the carpet stable; make the carpet stiff and thick and improve the body of the product; prevent the carpet from slipping and improve grounding; prevent rolling during laying; improve the strength and service life of the carpet . As an adhesive for carpets, the necessary properties are: good adhesion, good operability, good thickening, good mechanical stability, good chemical stability, good aging resistance, good environmental protection, and good economy. In the carpet manufact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F236/10C08F236/06C08F212/08C08F2/26C09J109/08C09D109/08D06M15/693D06M101/06
Inventor 柳长玉张丽丽马怀祥
Owner JIANGSU LITIAN TECH
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