Method for preparing pigment printing binder from oxidized graphene modified polyacrylate

Abstract

A method for preparing a pigment printing binder from oxidized graphene modified polyacrylate comprises the following steps: dissolving ammonium persulfate in deionized water and placing the mixture in a reactor of 75-80 DEG C; adding an emulsion A and an initiator aqueous solution A, adding an emulsion B and an initiator aqueous solution B, keeping warm at 75-80 DEG C and reacting for 2 hours after dripping, cooling, adjusting pH to 4.0-6.5 by the use of an ammoniacal liquor, and discharging to prepare a polyacrylate emulsion; stirring an oxidized graphene aqueous solution and adding the oxidized graphene aqueous solution into the polyacrylate emulsion so as to obtain the pigment printing binder. The pigment printing binder is prepared by introducing oxidized graphene in modification of the polyacrylate emulsion. Under the condition of the same dosage of the binder, oxidized graphene is added to raise dry and wet rub fastness of a printed fabric, and softness and washing fastness of the fabric are basically unchanged.

Description

technical field

[0001] The invention relates to a preparation method of a pigment printing adhesive, in particular to a method for preparing a pigment printing adhesive from graphene oxide modified polyacrylate. Background technique

[0002] As a film-forming material, polyacrylate emulsion has been widely used as finishing agent, sizing agent, coating agent and coating in the fields of leather, papermaking, printing and dyeing, construction, etc. and other shortcomings. The main technologies for modifying the defects of polyacrylate emulsion include multi-component hybrid modification technology, such as epoxy resin, polyurethane modified acrylic emulsion; cross-linking modification, such as using diacetone acrylamide to prepare room temperature self-crosslinking type Polyacrylate emulsion; modified by inorganic nanomaterials, the generally selected nanomaterials are silica (Xuejun Cui, Shuangling Zhong, Jing Yan, et al.Synthesis and characterization of core–shell SiO 2 -...

Examples

Embodiment 1

[0024] 1) Preparation of polyacrylate emulsion:

[0025] According to the number of parts by mass, after dissolving 0.15 parts of ammonium persulfate in 25 parts of deionized water, place it in a three-necked flask at 75°C, and then add emulsion A and initiator aqueous solution A dropwise to it at the same time, and the dropping time is 1.0 hour, then add emulsion B and initiator aqueous solution B dropwise at the same time. The dropwise addition time is 2.0 hours. Adjust the pH to 5.0, and discharge to obtain a polyacrylate emulsion;

[0026] Among them, emulsion A is composed of 1.0 parts of sodium dodecyl sulfate (SDS), 0.4 parts of branched secondary alcohol polyoxyethylene ether (TMN-10), 20 parts of deionized water, and 0.7 parts of methacrylic acid Glycidyl ether (GMA), 13 parts of methyl methacrylate (MMA) and 24 parts of butyl acrylate (BA) were mixed and emulsified. The initiator aqueous solution A was dissolved in 0.35 parts of ammonium persulfate in 25 parts of M...

Embodiment 2

[0033] 1) Preparation of polyacrylate emulsion:

[0034] According to the number of parts by mass, after dissolving 0.30 parts of ammonium persulfate in 40 parts of deionized water, place it in a three-necked flask at 80 ° C, and then add emulsion A and initiator aqueous solution A dropwise to it at the same time, and the dropping time is After 1.5 hours, add emulsion B and initiator aqueous solution B dropwise at the same time. The dropping time is 2.0 hours. When the pH value reaches 4.0, the material is discharged to obtain a polyacrylate emulsion;

[0035] Among them, emulsion A is composed of 1.6 parts of sodium dodecyl sulfate (SDS), 1.0 parts of branched secondary alcohol polyoxyethylene ether (TMN-10), 35 parts of deionized water, and 1.0 parts of methacrylic acid Glycidyl ether (GMA), 16 parts of methyl methacrylate (MMA) and 30 parts of butyl acrylate (BA) were mixed and emulsified. The initiator aqueous solution A was dissolved in 0.45 parts of ammonium persulfate ...

Embodiment 3

[0042] 1) Preparation of polyacrylate emulsion:

[0043] According to the number of parts by mass, after dissolving 0.25 parts of ammonium persulfate in 35 parts of deionized water, place it in a three-necked flask at 77 ° C, and then drop emulsion A and initiator aqueous solution A to it at the same time, and the dropping time is After 1.0 hour, add emulsion B and initiator aqueous solution B dropwise at the same time. The dropwise addition time is 2.0 hours. Adjust the pH value to 6.5, and discharge to obtain a polyacrylate emulsion;

[0044] Among them, emulsion A is composed of 1.2 parts of sodium dodecyl sulfate (SDS), 0.6 parts of branched secondary alcohol polyoxyethylene ether (TMN-10), 25 parts of deionized water, and 0.8 parts of methacrylic acid Glycidyl ether (GMA), 14 parts of methyl methacrylate (MMA) and 26 parts of butyl acrylate (BA) were mixed and emulsified. The initiator aqueous solution A was dissolved in 0.4 parts of ammonium persulfate in 30 parts of M...

technical field

[0001] The invention relates to a preparation method of a pigment printing adhesive, in particular to a method for preparing a pigment printing adhesive from graphene oxide modified polyacrylate. Background technique

[0002] As a film-forming material, polyacrylate emulsion has been widely used as finishing agent, sizing agent, coating agent and coating in the fields of leather, papermaking, printing and dyeing, construction, etc. and other shortcomings. The main technologies for modifying the defects of polyacrylate emulsion include multi-component hybrid modification technology, such as epoxy resin, polyurethane modified acrylic emulsion; cross-linking modification, such as using diacetone acrylamide to prepare room temperature self-crosslinking type Polyacrylate emulsion; modified by inorganic nanomaterials, the generally selected nanomaterials are silica (Xuejun Cui, Shuangling Zhong, Jing Yan, et al.Synthesis and characterization of core–shell SiO 2 -...

Examples

Embodiment 1

[0024] 1) Preparation of polyacrylate emulsion:

[0025] According to the number of parts by mass, after dissolving 0.15 parts of ammonium persulfate in 25 parts of deionized water, place it in a three-necked flask at 75°C, and then add emulsion A and initiator aqueous solution A dropwise to it at the same time, and the dropping time is 1.0 hour, then add emulsion B and initiator aqueous solution B dropwise at the same time. The dropwise addition time is 2.0 hours. Adjust the pH to 5.0, and discharge to obtain a polyacrylate emulsion;

[0026] Among them, emulsion A is composed of 1.0 parts of sodium dodecyl sulfate (SDS), 0.4 parts of branched secondary alcohol polyoxyethylene ether (TMN-10), 20 parts of deionized water, and 0.7 parts of methacrylic acid Glycidyl ether (GMA), 13 parts of methyl methacrylate (MMA) and 24 parts of butyl acrylate (BA) were mixed and emulsified. The initiator aqueous solution A was dissolved in 0.35 parts of ammonium persulfate in 25 parts of M...

Embodiment 2

[0033] 1) Preparation of polyacrylate emulsion:

[0034] According to the number of parts by mass, after dissolving 0.30 parts of ammonium persulfate in 40 parts of deionized water, place it in a three-necked flask at 80 ° C, and then add emulsion A and initiator aqueous solution A dropwise to it at the same time, and the dropping time is After 1.5 hours, add emulsion B and initiator aqueous solution B dropwise at the same time. The dropping time is 2.0 hours. When the pH value reaches 4.0, the material is discharged to obtain a polyacrylate emulsion;

[0035] Among them, emulsion A is composed of 1.6 parts of sodium dodecyl sulfate (SDS), 1.0 parts of branched secondary alcohol polyoxyethylene ether (TMN-10), 35 parts of deionized water, and 1.0 parts of methacrylic acid Glycidyl ether (GMA), 16 parts of methyl methacrylate (MMA) and 30 parts of butyl acrylate (BA) were mixed and emulsified. The initiator aqueous solution A was dissolved in 0.45 parts of ammonium persulfate ...

Embodiment 3

[0042] 1) Preparation of polyacrylate emulsion:

[0043] According to the number of parts by mass, after dissolving 0.25 parts of ammonium persulfate in 35 parts of deionized water, place it in a three-necked flask at 77 ° C, and then drop emulsion A and initiator aqueous solution A to it at the same time, and the dropping time is After 1.0 hour, add emulsion B and initiator aqueous solution B dropwise at the same time. The dropwise addition time is 2.0 hours. Adjust the pH value to 6.5, and discharge to obtain a polyacrylate emulsion;

[0044] Among them, emulsion A is composed of 1.2 parts of sodium dodecyl sulfate (SDS), 0.6 parts of branched secondary alcohol polyoxyethylene ether (TMN-10), 25 parts of deionized water, and 0.8 parts of methacrylic acid Glycidyl ether (GMA), 14 parts of methyl methacrylate (MMA) and 26 parts of butyl acrylate (BA) were mixed and emulsified. The initiator aqueous solution A was dissolved in 0.4 parts of ammonium persulfate in 30 parts of M...