A kind of functional prepolymer and its preparation method and application

A prepolymer and functional technology, applied in the field of textile printing and dyeing, can solve the problems of unsuitable direct printing, short printing processing process, large waste water discharge, etc., and achieve excellent color fastness, high color fastness, and reduce sewage discharge. Effect

Active Publication Date: 2017-03-29
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is necessary to have the advantages of short printing process, small water consumption and low waste water discharge, as well as the advantages of excellent color fastness of direct printing, soft fabric feel and wide color spectrum; at the same time, it is necessary to avoid the consumption of water resources by direct printing The shortcomings of large and large wastewater discharge, and the disadvantages of hard or rough printing and poor printing color fastness should be avoided; however, most of the existing acrylate emulsion polymers are suitable for pigment printing, not for direct printing

Method used

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  • A kind of functional prepolymer and its preparation method and application
  • A kind of functional prepolymer and its preparation method and application
  • A kind of functional prepolymer and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] 1) Mix 15g butyl acrylate, 3g acrylonitrile, 0.5g acrylic acid, 0.5g N-methylolacrylamide, 3g ethyl acrylate, 0.5g methacrylic acid, 0.5g 1,4-cyclohexanedimethanol diacrylic acid ester, 0.5g bis-trimethylolpropane tetraacrylate, 0.5g emulsifier SP-80, 0.5g sodium lauryl sulfonate, 0.5g isotridecyl ethoxylate (12) and 60g water Mix and fully stir into 85g emulsion A;

[0047] 2) Dissolve 1g of ammonium persulfate in 15g of water at room temperature, and fully stir to form 16g of initiator solution A;

[0048] 3) Take half 42.5g of the mass of the emulsion A and 8g of the half mass of the initiator solution A and put them into the reaction device of the three-necked flask, stir while heating, and raise the temperature to 70°C. When the temperature reaches 70°C, under stirring, slowly add the remaining emulsion A and initiator solution A dropwise at the same time, and the dropping time is 120 minutes. After the dropwise addition was completed, the stirring was continued ...

Embodiment 2

[0050] 1) Mix 19g butyl acrylate, 3.5g acrylonitrile, 0.4g acrylic acid, 0.6g N-methylolacrylamide, 4g ethyl acrylate, 0.5g methacrylic acid, 0.2g 1,4-cyclohexanedimethanol dimethanol Acrylate, 0.2g bis-trimethylolpropane tetraacrylate, 0.5g isomeric tridecyl alcohol polyoxyethylene ether (8), 0.5g sodium dodecylsulfonate, 1.5g fatty alcohol (C 12-18 ) Polyoxyethylene ether (12) sodium sulfonate mixed with 60g of water, and fully stirred to form emulsion B;

[0051] 2) Dissolve 1g of ammonium persulfate in 8.1g of water at room temperature, and fully stir to form initiator solution B;

[0052] 3) Take half of the mass of the emulsion B and half of the mass of the initiator solution B and put them into the reaction device of the three-mouth sesame cake, stir while heating, and raise the temperature to 75°C. When the temperature reaches 75°C, under stirring, slowly add the remaining emulsion B and initiator solution B dropwise at the same time, and the dropping time is 110 minu...

Embodiment 3

[0054] 1) Mix 18.0g butyl acrylate, 2.5g acrylonitrile, 0.5g acrylic acid, 0.5g N-methylolacrylamide, 2.0g isotridecyl acrylate, 1.0g ethylene glycol dimethacrylate, 0.2g Mix pentaerythritol tetraacrylate, 0.5g emulsifier SP-80, 1.0g sodium dodecylsulfonate, 0.5g isomeric tridecyl polyoxyethylene ether (12) and 60g water, and fully stir to form emulsion C;

[0055] 2) Dissolve 1.0g of ammonium persulfate in 11.8g of water at room temperature, and fully stir to form initiator solution C;

[0056] 3) Add half of the mass of the emulsion C and half of the mass of the initiator solution C into the reaction device, stir while heating, and raise the temperature to 72°C. When the temperature reaches 72°C, under stirring, slowly add the remaining emulsion C and initiator solution C dropwise at the same time, and the dropping time is 120 minutes. After the dropwise addition was completed, the stirring was continued for 120 min to obtain the functional prepolymer C.

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Abstract

The invention discloses a function prepolymer and a preparation method and application thereof. The function prepolymer is a butyl acrylate polymer and prepared from a monomer, modified matter and an emulsifying agent through emulsion polymerization. A synthetic thickener, liquid disperse dye and the function prepolymer are mixed with water and evenly stirred to obtain printing paste; printing and drying of a polyester fabric are achieved through the obtained printing paste on a rotary screen printing machine or a mobile screen printing machine, then high-temperature processing is carried out on a tentering heat setting machine, and a printed polyester fabric is obtained. According to the technical scheme, the printing process is short, the hand feeling of the fabric is soft, postprocessing is not needed, a large amount of water and energy are saved, almost no wastewater is drained, processing equipment is conventional, and the printing processing technology is environmentally friendly.

Description

technical field [0001] The invention belongs to the technical field of textile printing and dyeing, and in particular relates to a functional prepolymer and its preparation method and application, which are used in a short-flow, energy-saving and emission-reducing printing process for direct printing of polyester fabrics. Background technique [0002] The emulsion polymerization of acrylate is the biggest application of acrylate. According to the different physical and chemical requirements for polymer formation, acrylate can be copolymerized with other vinyl monomers. For example, monomers that impart hardness to polymers include vinyl acetate, styrene, methyl methacrylate, acrylonitrile, etc.; monomers that impart surface adhesion to polymers include acrylic acid, methacrylic acid, methylene succinic acid, etc. body; these monomers give the polymer polarity, which increases adhesion. Resins made from specific acrylates such as butyl acrylate, ethyl acrylate, and 2-ethylhe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/18C08F220/06C08F220/54C08F220/48C08F222/14C08F226/10C08F2/26C08F2/30D06P1/52D06P1/16D06P3/54
Inventor 朱亚伟丁志平胡必清
Owner SUZHOU UNIV
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