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Styrene-butadiene emulsion for carpets and preparation method thereof

A styrene-butadiene emulsion and carpet technology, applied in the direction of adhesive types, adhesive additives, non-polymer adhesive additives, etc., can solve the problems of poor softness, undurable carpets, poor strength, etc. Effect of cluster pull-out force and intermolecular force improvement

Active Publication Date: 2021-03-12
SHANGHAI CHANGFA NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current carboxylated styrene-butadiene emulsion for carpets has poor strength, resulting in undurable carpets, poor softness, and poor user comfort.
[0004] Chinese patent CN 106366977 A discloses a special high-strength carboxylated styrene-butadiene emulsion for carpets and a preparation method thereof. It is used as an adhesive for carpets, and the softness of carpets is relatively good. However, the tuft pullout force of the carpet is poor

Method used

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  • Styrene-butadiene emulsion for carpets and preparation method thereof
  • Styrene-butadiene emulsion for carpets and preparation method thereof
  • Styrene-butadiene emulsion for carpets and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0024] A kind of styrene-butadiene emulsion for carpet, comprises the component of following parts by weight:

[0025]

[0026] The preparation method of above-mentioned carpet styrene-butadiene emulsion, comprises the following steps:

[0027] The 2000ml pressurized reaction kettle is first evacuated, the vacuum degree is -0.095MPa, add 0.1g of sodium lauryl sulfate, 0.1g of potassium persulfate, and 59.2g of distilled water to completely dissolve into an aqueous solution, then add 2g of styrene, start stirring, and heat up to 60°C. At the same time, 1 gram of acrylic acid, 10 grams of butadiene, 88 grams of styrene, 0.2 grams of n-dodecanethiol and 0.5 grams of γ-(2,3-epoxypropoxy)propyltrimethoxysilane were added dropwise at 60°C. and 0.4 grams of sodium lauryl sulfate, 0.2 grams of polyoxyethylene (20) sorbitan monooleate, 0.4 grams of potassium persulfate, 0.2 grams of lauryl dimethylamine oxide and 10 g distilled water mixed water solution. The dropwise addition ti...

Embodiment 2

[0029] A kind of styrene-butadiene emulsion for carpet, comprises the component of following parts by weight:

[0030]

[0031]

[0032] The preparation method of above-mentioned carpet styrene-butadiene emulsion, comprises the following steps:

[0033] The 2000ml pressurized reaction kettle is first evacuated, vacuum degree-0.095MPa, adds 100 grams of 40wt% seed emulsion (particle diameter 40nm), 2 grams of sodium dodecyl naphthalene sulfonate, 1 gram of sorbitan monooleate, 1 gram of sodium persulfate and 447.5 grams of distilled water were completely dissolved into an aqueous solution, stirring was started, and the temperature was raised to 90°C. At the same time, 15 grams of methacrylic acid, 200 grams of butadiene, 110 grams of methylstyrene, 5 grams of tert-dodecylmercaptan and 5 grams of γ-methacryloxypropyl trimethoxysilane were added dropwise at 90 ° C. and 3 grams of sodium dodecyl naphthalene sulfonate, 1 gram of sorbitan monolaurate, 2 grams of lauryldimethy...

Embodiment 3

[0035] A kind of styrene-butadiene emulsion for carpet, comprises the component of following parts by weight:

[0036]

[0037]

[0038] The preparation method of above-mentioned carpet styrene-butadiene emulsion, comprises the following steps:

[0039] The 2000ml pressurized reaction kettle is first vacuumed, and the vacuum degree is -0.095MPa, and 30 grams of 20wt% seed emulsion (30nm in particle size) are added, 0.5 grams of dicyclohexyl-2-sodium sulfosuccinate, 0.5 grams of ammonium persulfate, 138.5 grams Distilled water, completely dissolved into an aqueous solution, started stirring, and raised the temperature to 80°C. Simultaneously, a mixed monomer of 10 grams of methacrylic acid, 100 grams of butadiene, 98 grams of styrene, 3 grams of n-dodecylmercaptan and 3 grams of γ-aminopropyltriethoxysilane was added dropwise at 80°C; and A mixed aqueous solution of 2 grams of sodium dialkyl-2-sulfosuccinate, 1.5 grams of polyoxypropylene stearate, 1 gram of lauryl dimet...

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Abstract

The invention discloses styrene-butadiene emulsion for carpets and a preparation method thereof. The styrene-butadiene emulsion comprises the following components in parts by weight: 0-100 parts of seed emulsion; 1-15 parts of a carboxylic acid monomer; 10-200 parts of butadiene; 90-110 parts of (methyl) styrene; 0.5-5 parts of silane; 0.2-5 parts of a molecular weight regulator; 0.5-5 parts of ananionic emulsifier; 0.2-2 parts of a nonionic emulsifier; 0.2-2 parts of dodecyl dimethyl amine oxide; 0.5-5 parts of an initiator; 1-15 parts of an alkaline substance; 0.1-1 part of an antioxidant;65-600 parts of water. According to the styrene-butadiene emulsion for the carpets, a small amount of silane and the antioxidant are added, the fluff cluster pulling-out force of the carpet can be obviously improved, the added small amount of silane can react with carpet fibers in the film forming process of the styrene-butadiene emulsion, meanwhile, the antioxidant is added to inhibit the oxidation reaction of the styrene-butadiene emulsion, and in the drying process, the intermolecular force between the carpet gum and carpet fibers is greatly improved; unexpectedly, due to the addition of silane and the antioxidant, the pile cluster pulling-out force of the carpet can be obviously improved.

Description

technical field [0001] The invention relates to the field of adhesives for coating carpet backings, in particular to a styrene-butadiene emulsion for carpets and a preparation method thereof. Background technique [0002] Carboxylated styrene-butadiene emulsion is a copolymer produced by emulsion polymerization with butadiene, styrene and a small amount of carboxylic acid and other additives. It is a milky white water dispersion with blue-purple luster, and the proportion of bound styrene is high. It has the advantages of high cohesive force and conjunctival strength, good mechanical and chemical stability, good fluidity and storage stability, and large filling capacity. The residual benzene monomer is very small, and it is an environmentally friendly product. [0003] Carboxylated styrene-butadiene emulsion is also used in adhesives for carpet backing coating to fix carpet piles, stabilize carpet dimensions, and make carpets have good durability during use. However, the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F212/08C08F220/06C08F236/10C08F212/12C08F222/02C09J109/08C09J11/06
CPCC08F212/08C08F236/10C09J109/08C09J11/06C08F220/06C08F212/12C08F222/02C08K5/13C08K5/5435C08K5/5425C08K5/1345C08K5/527C08K5/544C08K5/375
Inventor 施晓旦尹东华
Owner SHANGHAI CHANGFA NEW MATERIAL CO LTD
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