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Water-borne copolymerized (amide-ester) as well as preparation method and application thereof

A technology of copolymerization and amide, applied in the field of textile sizing water-based copolymer (amide-ester) and its preparation, can solve the problems of insufficient adhesion of polyamide fibers, poor adhesion hairiness, affecting production efficiency and fabric quality, etc. Water-solubility, good adhesion, and the effect of reducing regenerated hairiness

Active Publication Date: 2014-02-05
江苏光辉粘合科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The water-soluble polyester synthetic material used for sizing in the prior art is that polyester fiber (polyester) has excellent sizing, but its adhesion to polyamide fiber (nylon) is not enough, especially nylon filament sizing, In the process of use, its attached hairiness is poor, which seriously affects the production efficiency and the quality of the fabric

Method used

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  • Water-borne copolymerized (amide-ester) as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Dimethyl isophthalate-5-sodium sulfonate 15kg (molecular weight: 296.23, 50.64mol), isophthalic acid 4.8kg (molecular weight: 166.13, 28.89mol), phthalic anhydride 25kg (molecular weight: 148.11, 168.79mol ), 4.7kg of terephthalic acid (molecular weight: 166.13, 28.29mol), 23kg of ethylene glycol (molecular weight: 62.068, 370.56mol), and 0.9g of dibutyltin oxide were put into a 100L stainless steel reactor, under nitrogen Under the system, stir at a speed of 55-80rpm, and gradually raise the temperature to 210°C and keep it warm for 1.5 hours, then raise the temperature to 220-260°C and react for about 2 hours. When the quality of the by-product water reaches 90% of the theoretical value, add 2.5kg of caprolactam (molecular weight: 133.16, 18.77mol) and 0.8g of sodium phosphate, maintained at 250°C and 2Mpa pressure, reacted for 1 hour. Cool down to about 200°C, add 15g of antimony trioxide and 12g of phosphoric acid, continue to heat up and decompress slowly, adjust t...

Embodiment 2

[0034] Dimethyl isophthalate-5-sodium sulfonate 15kg, isophthalic acid 14kg (molecular weight: 166.13, 84.27mol), phthalic anhydride 16.7kg (molecular weight: 148.11, 112.75mol), terephthalic acid 4.7kg kg (molecular weight: 166.13, 28.29mol), ethylene glycol 25.5kg (molecular weight: 62.068, 410.84mol), and 1g of manganese acetate were put into a 100L stainless steel reactor, stirred at a speed of about 60rpm under a nitrogen system, and Gradually raise the temperature to 210°C and keep it warm for 1 hour, and then raise the temperature to 220-240°C for about 2.5 hours. When the quality of the by-product water reaches 96% of the theoretical value, add 4kg caprolactam (molecular weight: 133.16, 30.04mol) and 0.8g of sodium phosphate, maintain the temperature at 255°C, under the pressure of 2.5Mpa, react for 1 hour. Cool down to about 190°C, add 16g of isobutyl titanium and 15g of phosphorous acid, continue to heat up and decompress slowly, adjust the speed to about 60rpm, cont...

Embodiment 3

[0037] 11.6kg of isophthalic acid-5-sodium sulfonate (molecular weight: 268.24, 43.24mol), 12kg of isophthalic acid (molecular weight: 166.13, 72.23mol), 17.1kg of phthalic anhydride (molecular weight: 148.11, 115.45mol), 9.6kg of terephthalic acid (molecular weight: 166.13, 57.79mol), 22kg of ethylene glycol (molecular weight: 62.068, 354.45mol), and 1.2g of dibutyltin oxide were put into a 100L stainless steel reactor, under nitrogen system, Stir at 70rpm, gradually raise the temperature to 220°C and keep it warm for 1 hour, then raise the temperature to 235°C for about 2.5 hours, when the quality of the by-product water reaches 92% of the theoretical value, add 6kg caprolactam (molecular weight: 133.16, 45.06 mol) and 1g of sodium phosphate, maintain the temperature at 250°C and the pressure of 2.5Mpa, and react for 1.5 hours. Cool down to about 200°C, add 15g of antimony trioxide and 10g of phosphorous acid, continue to heat up and decompress slowly, adjust the speed to ab...

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Abstract

The invention discloses water-borne copolymerized (amide-ester) as well as a preparation method and application thereof. Caprolactam, meta-benzene sulfonate, binary carboxylic acid or ester thereof and dihydric alcohol are adopted as materials, heated up firstly to carry out esterification reaction, then carry out ring-opening caprolactam reaction by preserving heat and pressure, and finally carry out polycondensation to prepare the water-borne copolymerized (amide-ester). The resin is not only good in water solubility, but also excellent in adhesion force; while being used for spinning and sizing, the water-borne copolymerized (amide-ester) has extremely strong adhesive force for polyamide fiber (chinlon), and can attach feathers very well, so that a head breaking phenomenon due to a plurality of regenerated feathers as the sizing agent is attached with the feathers is avoided; finally, the production efficiency and quality of fabrics can be improved.

Description

technical field [0001] The invention belongs to the field of polymer material synthesis, and relates to a water-based copoly(amide-ester) and its preparation method and application, in particular to a water-based copoly(amide-ester) for textile sizing and a preparation method thereof. Background technique [0002] Warp sizing mainly considers wear resistance and attachment to feathers. It directly affects textile production efficiency and fabric quality. For a long time, the synthetic size used in warp yarn sizing in the textile industry is mainly polyvinyl alcohol (PVA). But its desizing is difficult, the PVA in the desizing waste liquid is difficult to biodegrade, and the environmental pollution is great. Some developed countries in Western Europe have banned PVA sizing, and my country is also vigorously advocating the use of less or no PVA. Therefore, it is of great significance to develop high adhesion, easy desizing, and biodegradable water-soluble polymers to replace...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G69/44D06M15/37D06M101/34
Inventor 丁逸峰陈志峰丁佰平冯芳丹
Owner 江苏光辉粘合科技有限公司
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