阅读说明：本技术 一种丙烯酸酯黏合剂及其制备方法 (Acrylate adhesive and preparation method thereof ) 是由 廖平湘 于 2020-12-23 设计创作，主要内容包括：本发明公开了一种丙烯酸酯黏合剂及其制备方法,丙烯酸酯黏合剂按照重量份的原料包括：2-丙烯酰胺基-2-甲基丙磺酸3-5份、壬基酚聚氧乙烯醚3-5份、N-丁氧基甲基丙烯酰胺2-4份、衣康酸单丁酯0.2-0.4份、乙酰乙酸基甲基丙烯酸乙酯0.5-1.5份、十二烷基硫酸钠0.5-1.5份、氢氧化钠0.08-0.12份、丙烯酸0.5-1.5份、乙酸乙烯酯1-2份、苯乙烯3-5份、丙烯酸酯25-35份、过硫酸铵0.4-0.6份、去离子水50-70份。本发明采用分步乳化的方法,减小了乳胶粒与水之间的界面能,增强了乳液的稳定性,利于乳液聚合,采用N-丁氧基甲基丙烯酰胺作为交联单体,克服了传统交联单体高温下不稳定的缺点,提高了产品的热尺寸稳定性,制备得到的丙烯酸酯黏合剂的耐沾污性好。(The invention discloses an acrylate adhesive and a preparation method thereof, wherein the acrylate adhesive comprises the following raw materials in parts by weight: 3-5 parts of 2-acrylamide-2-methylpropanesulfonic acid, 3-5 parts of nonylphenol polyoxyethylene ether, 2-4 parts of N-butoxy methacrylamide, 0.2-0.4 part of monobutyl itaconate, 0.5-1.5 parts of acetoacetoxy ethyl methacrylate, 0.5-1.5 parts of sodium dodecyl sulfate, 0.08-0.12 part of sodium hydroxide, 0.5-1.5 parts of acrylic acid, 1-2 parts of vinyl acetate, 3-5 parts of styrene, 25-35 parts of acrylate, 0.4-0.6 part of ammonium persulfate and 50-70 parts of deionized water. The invention adopts a step-by-step emulsification method, reduces the interface energy between emulsion particles and water, enhances the stability of the emulsion, is beneficial to emulsion polymerization, adopts N-butoxy methacrylamide as a crosslinking monomer, overcomes the defect that the traditional crosslinking monomer is unstable at high temperature, improves the thermal dimension stability of the product, and has good stain resistance of the prepared acrylate adhesive.)

1. The acrylate adhesive is characterized by comprising the following raw materials in parts by weight: 3-5 parts of 2-acrylamide-2-methylpropanesulfonic acid, 3-5 parts of nonylphenol polyoxyethylene ether, 2-4 parts of N-butoxy methacrylamide, 0.2-0.4 part of monobutyl itaconate, 0.5-1.5 parts of acetoacetoxy ethyl methacrylate, 0.5-1.5 parts of sodium dodecyl sulfate, 0.08-0.12 part of sodium hydroxide, 0.5-1.5 parts of acrylic acid, 1-2 parts of vinyl acetate, 3-5 parts of styrene, 25-35 parts of acrylate, 0.4-0.6 part of ammonium persulfate and 50-70 parts of deionized water.

2. The acrylate adhesive according to claim 1, characterized in that the raw materials in parts by weight comprise: 3.5-4.5 parts of 2-acrylamide-2-methylpropanesulfonic acid, 3.5-4.5 parts of nonylphenol polyoxyethylene ether, 2.5-3.5 parts of N-butoxymethyl acrylamide, 0.25-0.35 part of itaconic acid monobutyl ester, 0.8-1.2 parts of acetoacetoxy ethyl methacrylate, 0.8-1.2 parts of sodium dodecyl sulfate, 0.09-0.11 part of sodium hydroxide, 0.8-1.2 parts of acrylic acid, 1.2-1.8 parts of vinyl acetate, 3.5-4.5 parts of styrene, 28-32 parts of acrylic ester, 0.45-0.55 part of ammonium persulfate and 55-65 parts of deionized water.

3. The acrylate adhesive according to claim 1, characterized in that the raw materials in parts by weight comprise: 4 parts of 2-acrylamide-2-methylpropanesulfonic acid, 4 parts of nonylphenol polyoxyethylene ether, 3 parts of N-butoxymethylacrylamide, 0.3 part of monobutyl itaconate, 1 part of acetoacetoxy ethyl methacrylate, 1 part of sodium dodecyl sulfate, 0.1 part of sodium hydroxide, 1 part of acrylic acid, 1.5 parts of vinyl acetate, 4 parts of styrene, 30 parts of acrylic ester, 0.5 part of ammonium persulfate and 60 parts of deionized water.

4. The acrylate adhesive of any one of claims 1-3 wherein the acrylate is one or more of butyl acrylate, ethyl acrylate, and 2-ethylhexyl acrylate.

5. A method for preparing the acrylate adhesive according to any one of claims 1 to 3, characterized by comprising the following steps:

(1) weighing the raw materials in parts by weight;

(2) dissolving 2-acrylamide-2-methylpropanesulfonic acid in water, and adding sodium hydroxide to prepare a 2-acrylamide-2-methylpropanesulfonic acid sodium solution;

(3) dissolving ammonium persulfate in 5-7 parts of deionized water to serve as an initiator solution for later use;

(4) adding materials by a step method, namely dissolving sodium dodecyl sulfate in 20-30 parts of deionized water, adding into an emulsifying kettle, and quickly emulsifying for 8-12 min; adding nonylphenol polyoxyethylene ether, N-butoxy methacrylamide, itaconic acid monobutyl ester and acetoacetoxy ethyl methacrylate, and quickly emulsifying for 10-15 min; adding ethyl ester, acrylic acid, vinyl acetate, 2-acrylamide-2-methyl sodium propanesulfonate solution and styrene, quickly emulsifying for 10-15min, adding acrylic ester, quickly emulsifying for 15-20min, and emulsifying to obtain pre-emulsion;

(5) adding 10-20 parts of deionized water into a reaction kettle, heating to 85-95 ℃, adding a pre-emulsion accounting for 20-30% of the total mass of the pre-emulsion into the reaction kettle, adding 35-45% of the total mass of the initiator solution, and starting polymerization;

(6) after 20-40min, dropwise adding the rest of pre-emulsion and the rest of initiator solution into the reaction kettle for 3-5h, wherein the reaction temperature is 85-95 ℃;

(7) after the dropwise addition is finished, preserving heat and curing for 50-70min, cooling, adding the rest deionized water, and adjusting the mass fraction to 40% to obtain the final product.

Technical Field

The invention relates to an adhesive, in particular to an acrylate adhesive and a preparation method thereof.

Background

Pigment printing has the advantages of simple process, energy conservation, bright color, wide application range, small environmental pollution and the like, and is widely applied by printing and dyeing enterprises. At present, most of pigment printing adhesives are polymer emulsions, and emulsion adhesives used for textile printing can be classified into polyacrylates, butadienes, vinyl acetates and polyurethanes according to chemical structures, wherein the polyacrylate adhesives are most commonly used, preparation process conditions have obvious influence on application performance of the adhesives, and the emulsion stability is poor due to the fact that one-step emulsification is mostly adopted at present.

Disclosure of Invention

The invention aims to provide an acrylate adhesive with high efficiency, environmental protection and good stability and a preparation method thereof, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

an acrylate adhesive comprises the following raw materials in parts by weight: 3-5 parts of 2-acrylamide-2-methylpropanesulfonic acid, 3-5 parts of nonylphenol polyoxyethylene ether, 2-4 parts of N-butoxy methacrylamide, 0.2-0.4 part of monobutyl itaconate, 0.5-1.5 parts of acetoacetoxy ethyl methacrylate, 0.5-1.5 parts of sodium dodecyl sulfate, 0.08-0.12 part of sodium hydroxide, 0.5-1.5 parts of acrylic acid, 1-2 parts of vinyl acetate, 3-5 parts of styrene, 25-35 parts of acrylate, 0.4-0.6 part of ammonium persulfate and 50-70 parts of deionized water.

As a further scheme of the invention: the acrylate adhesive comprises the following raw materials in parts by weight: 3.5-4.5 parts of 2-acrylamide-2-methylpropanesulfonic acid, 3.5-4.5 parts of nonylphenol polyoxyethylene ether, 2.5-3.5 parts of N-butoxymethyl acrylamide, 0.25-0.35 part of itaconic acid monobutyl ester, 0.8-1.2 parts of acetoacetoxy ethyl methacrylate, 0.8-1.2 parts of sodium dodecyl sulfate, 0.09-0.11 part of sodium hydroxide, 0.8-1.2 parts of acrylic acid, 1.2-1.8 parts of vinyl acetate, 3.5-4.5 parts of styrene, 28-32 parts of acrylic ester, 0.45-0.55 part of ammonium persulfate and 55-65 parts of deionized water.

As a further scheme of the invention: the acrylate adhesive comprises the following raw materials in parts by weight: 4 parts of 2-acrylamide-2-methylpropanesulfonic acid, 4 parts of nonylphenol polyoxyethylene ether, 3 parts of N-butoxymethylacrylamide, 0.3 part of monobutyl itaconate, 1 part of acetoacetoxy ethyl methacrylate, 1 part of sodium dodecyl sulfate, 0.1 part of sodium hydroxide, 1 part of acrylic acid, 1.5 parts of vinyl acetate, 4 parts of styrene, 30 parts of acrylic ester, 0.5 part of ammonium persulfate and 60 parts of deionized water.

As a still further scheme of the invention: the acrylate is one or more than two of butyl acrylate, ethyl acrylate and 2-ethylhexyl acrylate.

The preparation method of the acrylate adhesive comprises the following specific steps:

(1) weighing the raw materials in parts by weight;

(2) dissolving 2-acrylamide-2-methylpropanesulfonic acid in water, and adding sodium hydroxide to prepare a 2-acrylamide-2-methylpropanesulfonic acid sodium solution;

(3) dissolving ammonium persulfate in 5-7 parts of deionized water to serve as an initiator solution for later use;

(4) adding materials by a step method, namely dissolving sodium dodecyl sulfate in 20-30 parts of deionized water, adding into an emulsifying kettle, and quickly emulsifying for 8-12 min; adding nonylphenol polyoxyethylene ether, N-butoxy methacrylamide, itaconic acid monobutyl ester and acetoacetoxy ethyl methacrylate, and quickly emulsifying for 10-15 min; adding ethyl ester, acrylic acid, vinyl acetate, 2-acrylamide-2-methyl sodium propanesulfonate solution and styrene, quickly emulsifying for 10-15min, adding acrylic ester, quickly emulsifying for 15-20min, and emulsifying to obtain pre-emulsion;

(5) adding 10-20 parts of deionized water into a reaction kettle, heating to 85-95 ℃, adding a pre-emulsion accounting for 20-30% of the total mass of the pre-emulsion into the reaction kettle, adding 35-45% of the total mass of the initiator solution, and starting polymerization;

(6) after 20-40min, dropwise adding the rest of pre-emulsion and the rest of initiator solution into the reaction kettle for 3-5h, wherein the reaction temperature is 85-95 ℃;

(7) after the dropwise addition is finished, preserving heat and curing for 50-70min, cooling, adding the rest deionized water, and adjusting the mass fraction to 40% to obtain the final product.

Compared with the prior art, the invention has the beneficial effects that:

the invention adopts a step-by-step emulsification method, reduces the interface energy between emulsion particles and water, enhances the stability of the emulsion, is beneficial to emulsion polymerization, adopts N-butoxy methacrylamide as a crosslinking monomer, overcomes the defect that the traditional crosslinking monomer is unstable at high temperature, improves the thermal dimension stability of the product, and has good stain resistance of the prepared acrylate adhesive.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Example 1

An acrylate adhesive comprises the following raw materials in parts by weight: 3 parts of 2-acrylamide-2-methylpropanesulfonic acid, 3 parts of nonylphenol polyoxyethylene ether, 2 parts of N-butoxymethylacrylamide, 0.2 part of monobutyl itaconate, 0.5 part of acetoacetoxy ethyl methacrylate, 0.5 part of sodium dodecyl sulfate, 0.08 part of sodium hydroxide, 0.5 part of acrylic acid, 1 part of vinyl acetate, 3 parts of styrene, 25 parts of acrylic ester, 0.4 part of ammonium persulfate and 50 parts of deionized water.

The preparation method of the acrylate adhesive comprises the following specific steps:

(1) weighing the raw materials in parts by weight;

(2) dissolving 2-acrylamide-2-methylpropanesulfonic acid in water, and adding sodium hydroxide to prepare a 2-acrylamide-2-methylpropanesulfonic acid sodium solution;

(3) dissolving ammonium persulfate in 5 parts of deionized water to serve as an initiator solution for later use;

(4) adding materials by a step method, namely dissolving sodium dodecyl sulfate in 20 parts of deionized water, adding the solution into an emulsifying kettle, and quickly emulsifying for 8 min; adding nonylphenol polyoxyethylene ether, N-butoxy methacrylamide, itaconic acid monobutyl ester and acetoacetoxy ethyl methacrylate, and quickly emulsifying for 10 min; adding ethyl ester, acrylic acid, vinyl acetate, 2-acrylamide-2-methyl sodium propanesulfonate solution and styrene, quickly emulsifying for 10min, adding acrylic ester, quickly emulsifying for 15min, and emulsifying to obtain pre-emulsion;

(5) adding 10 parts of deionized water into a reaction kettle, heating to 85 ℃, adding a pre-emulsion accounting for 20% of the total mass of the pre-emulsion into the reaction kettle, adding 35% of the total mass of the initiator solution, and starting a polymerization reaction;

(6) after 20min, dropwise adding the rest of pre-emulsion and the rest of initiator solution into the reaction kettle for 3h, wherein the reaction temperature is 85 ℃;

(7) after the dropwise adding is finished, preserving heat and curing for 50min, cooling, adding the rest deionized water, and adjusting the mass fraction to 40% to obtain a final product.

Example 2

An acrylate adhesive comprises the following raw materials in parts by weight: 3.5 parts of 2-acrylamide-2-methylpropanesulfonic acid, 3.5 parts of nonylphenol polyoxyethylene ether, 2.5 parts of N-butoxymethylacrylamide, 0.25 part of itaconic acid monobutyl ester, 0.8 part of acetoacetoxy ethyl methacrylate, 0.8 part of sodium dodecyl sulfate, 0.09 part of sodium hydroxide, 0.8 part of acrylic acid, 1.2 parts of vinyl acetate, 3.5 parts of styrene, 28 parts of acrylate, 0.45 part of ammonium persulfate and 55 parts of deionized water.

The preparation method of the acrylate adhesive comprises the following specific steps:

(1) weighing the raw materials in parts by weight;

(2) dissolving 2-acrylamide-2-methylpropanesulfonic acid in water, and adding sodium hydroxide to prepare a 2-acrylamide-2-methylpropanesulfonic acid sodium solution;

(3) dissolving ammonium persulfate in 5.5 parts of deionized water to serve as an initiator solution for later use;

(4) adding materials by a step method, namely dissolving sodium dodecyl sulfate in 22 parts of deionized water, adding the mixture into an emulsifying kettle, and quickly emulsifying for 9 min; then adding nonylphenol polyoxyethylene ether, N-butoxy methacrylamide, itaconic acid monobutyl ester and acetoacetoxy ethyl methacrylate, and quickly emulsifying for 11 min; adding ethyl ester, acrylic acid, vinyl acetate, 2-acrylamide-2-methyl sodium propanesulfonate solution and styrene, quickly emulsifying for 11min, adding acrylic ester, quickly emulsifying for 16min, and emulsifying to obtain pre-emulsion;

(5) adding 12 parts of deionized water into a reaction kettle, heating to 88 ℃, adding a pre-emulsion accounting for 22% of the total mass of the pre-emulsion into the reaction kettle, adding 38% of the total mass of the initiator solution, and starting a polymerization reaction;

(6) after 25min, dropwise adding the rest of pre-emulsion and the rest of initiator solution into the reaction kettle for 3.5h, wherein the reaction temperature is 88 ℃;

(7) after the dropwise addition is finished, preserving heat and curing for 55min, cooling, adding the rest deionized water, and adjusting the mass fraction to 40% to obtain a final product.

Example 3

An acrylate adhesive comprises the following raw materials in parts by weight: 4 parts of 2-acrylamide-2-methylpropanesulfonic acid, 4 parts of nonylphenol polyoxyethylene ether, 3 parts of N-butoxymethylacrylamide, 0.3 part of monobutyl itaconate, 1 part of acetoacetoxy ethyl methacrylate, 1 part of sodium dodecyl sulfate, 0.1 part of sodium hydroxide, 1 part of acrylic acid, 1.5 parts of vinyl acetate, 4 parts of styrene, 30 parts of acrylic ester, 0.5 part of ammonium persulfate and 60 parts of deionized water.

The preparation method of the acrylate adhesive comprises the following specific steps:

(1) weighing the raw materials in parts by weight;

(2) dissolving 2-acrylamide-2-methylpropanesulfonic acid in water, and adding sodium hydroxide to prepare a 2-acrylamide-2-methylpropanesulfonic acid sodium solution;

(3) dissolving ammonium persulfate in 6 parts of deionized water to serve as an initiator solution for later use;

(4) adding materials by a step method, namely dissolving sodium dodecyl sulfate in 25 parts of deionized water, adding the mixture into an emulsifying kettle, and quickly emulsifying for 10 min; then adding nonylphenol polyoxyethylene ether, N-butoxy methacrylamide, itaconic acid monobutyl ester and acetoacetoxy ethyl methacrylate, and quickly emulsifying for 12 min; adding ethyl ester, acrylic acid, vinyl acetate, 2-acrylamide-2-methyl sodium propanesulfonate solution and styrene, quickly emulsifying for 12min, adding acrylic ester, quickly emulsifying for 18min, and emulsifying to obtain pre-emulsion;

(5) adding 15 parts of deionized water into a reaction kettle, heating to 90 ℃, adding a pre-emulsion accounting for 25% of the total mass of the pre-emulsion into the reaction kettle, adding 40% of the total mass of the initiator solution, and starting a polymerization reaction;

(6) after 20-40min, dropwise adding the rest of pre-emulsion and the rest of initiator solution into the reaction kettle for 4h at the reaction temperature of 90 ℃;

(7) after the dropwise adding is finished, preserving heat and curing for 60min, cooling, adding the rest deionized water, and adjusting the mass fraction to 40% to obtain a final product.

Example 4

An acrylate adhesive comprises the following raw materials in parts by weight: 4.5 parts of 2-acrylamide-2-methylpropanesulfonic acid, 4.5 parts of nonylphenol polyoxyethylene ether, 3.5 parts of N-butoxymethylacrylamide, 0.35 part of itaconic acid monobutyl ester, 1.2 parts of acetoacetoxy ethyl methacrylate, 1.2 parts of sodium dodecyl sulfate, 0.11 part of sodium hydroxide, 1.2 parts of acrylic acid, 1.8 parts of vinyl acetate, 4.5 parts of styrene, 32 parts of acrylate, 0.55 part of ammonium persulfate and 65 parts of deionized water.

The preparation method of the acrylate adhesive comprises the following specific steps:

(1) weighing the raw materials in parts by weight;

(2) dissolving 2-acrylamide-2-methylpropanesulfonic acid in water, and adding sodium hydroxide to prepare a 2-acrylamide-2-methylpropanesulfonic acid sodium solution;

(3) dissolving ammonium persulfate in 6.5 deionized water to serve as an initiator solution for later use;

(4) adding materials by a step method, namely dissolving lauryl sodium sulfate in 28 parts of deionized water, adding the mixture into an emulsifying kettle, and quickly emulsifying for 11 min; then adding nonylphenol polyoxyethylene ether, N-butoxy methacrylamide, itaconic acid monobutyl ester and acetoacetoxy ethyl methacrylate, and quickly emulsifying for 14 min; adding ethyl ester, acrylic acid, vinyl acetate, 2-acrylamide-2-methyl sodium propanesulfonate solution and styrene, quickly emulsifying for 14min, adding acrylic ester, quickly emulsifying for 19min, and emulsifying to obtain pre-emulsion;

(5) adding 18 parts of deionized water into a reaction kettle, heating to 92 ℃, adding a pre-emulsion accounting for 28% of the total mass of the pre-emulsion into the reaction kettle, adding 42% of the total mass of the initiator solution, and starting a polymerization reaction;

(6) after 20-40min, dropwise adding the rest of pre-emulsion and the rest of initiator solution into the reaction kettle for 4.5h, wherein the reaction temperature is 92 ℃;

(7) after the dropwise adding is finished, preserving heat and curing for 65min, cooling, adding the rest deionized water, and adjusting the mass fraction to 40% to obtain a final product.

Example 5

An acrylate adhesive comprises the following raw materials in parts by weight: 5 parts of 2-acrylamide-2-methylpropanesulfonic acid, 5 parts of nonylphenol polyoxyethylene ether, 4 parts of N-butoxymethylacrylamide, 0.4 part of monobutyl itaconate, 1.5 parts of acetoacetoxy ethyl methacrylate, 1.5 parts of sodium dodecyl sulfate, 0.12 part of sodium hydroxide, 1.5 parts of acrylic acid, 2 parts of vinyl acetate, 5 parts of styrene, 35 parts of acrylic ester, 0.6 part of ammonium persulfate and 70 parts of deionized water.

The preparation method of the acrylate adhesive comprises the following specific steps:

(1) weighing the raw materials in parts by weight;

(2) dissolving 2-acrylamide-2-methylpropanesulfonic acid in water, and adding sodium hydroxide to prepare a 2-acrylamide-2-methylpropanesulfonic acid sodium solution;

(3) dissolving ammonium persulfate in 7 parts of deionized water to serve as an initiator solution for later use;

(4) adding materials by a step method, namely dissolving sodium dodecyl sulfate in 30 parts of deionized water, adding the solution into an emulsifying kettle, and quickly emulsifying for 12 min; then adding nonylphenol polyoxyethylene ether, N-butoxy methacrylamide, itaconic acid monobutyl ester and acetoacetoxy ethyl methacrylate, and quickly emulsifying for 15 min; adding ethyl ester, acrylic acid, vinyl acetate, acrylamide-sodium methyl propanesulfonate solution and styrene, quickly emulsifying for 15min, adding acrylic ester, quickly emulsifying for 20min, and emulsifying to obtain pre-emulsion;

(5) adding 20 parts of deionized water into a reaction kettle, heating to 95 ℃, adding a pre-emulsion accounting for 30% of the total mass of the pre-emulsion into the reaction kettle, adding 45% of the total mass of the initiator solution, and starting a polymerization reaction;

(6) after 40min, dropwise adding the rest of pre-emulsion and the rest of initiator solution into the reaction kettle for 5h, wherein the reaction temperature is 95 ℃;

(7) after the dropwise adding is finished, preserving heat and curing for 70min, cooling, adding the rest deionized water, and adjusting the mass fraction to 40% to obtain a final product.

The acrylate is one or more than two of butyl acrylate, ethyl acrylate and 2-ethylhexyl acrylate.

The invention adopts a step-by-step emulsification method, reduces the interface energy between emulsion particles and water, enhances the stability of the emulsion, is beneficial to emulsion polymerization, adopts N-butoxy methacrylamide as a crosslinking monomer, overcomes the defect that the traditional crosslinking monomer is unstable at high temperature, improves the thermal dimension stability of the product, and has good stain resistance of the prepared acrylate adhesive.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.