Foamless anti-phenolic yellowing agent as well as preparation method and application thereof

A technology of anti-phenol yellowing agent and sulfonic acid group, which is applied in the field of non-foaming anti-phenol yellowing agent and its preparation, can solve the problems such as being difficult to wash off, and achieve not easy color change, little color influence, and excellent anti-phenol yellowing The effect of sex change

Active Publication Date: 2022-05-06
东莞市中纺化工有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, almost all fast-defoaming anti-phenol yellowing agents use silicon-based defoamers with high defoaming efficiency. Risk of additive spots due to demulsification

Method used

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  • Foamless anti-phenolic yellowing agent as well as preparation method and application thereof
  • Foamless anti-phenolic yellowing agent as well as preparation method and application thereof
  • Foamless anti-phenolic yellowing agent as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] Add 29.6 parts of propylene sulfonic acid, 10.4 parts of methacrylic acid, 0.3 parts of sodium bisulfite and 36 parts of deionized water into a reactor equipped with a stirrer, thermometer, balance feeder and condenser; then add 8 parts of ammonium persulfate Add the aqueous solution (the mass concentration of ammonium persulfate is 10%) into the balance feeder of the reaction device; start stirring, and control the rotating speed at 200 rpm; Add ammonium persulfate aqueous solution dropwise. After the dropwise addition is completed within 0.5 hours, raise the temperature to 85°C and continue the heat preservation reaction for 5 hours; Slowly add 16 parts of triethanolamine, continue the heat preservation reaction for 2 hours, control the temperature of the reaction solution to not exceed 70°C, then adjust the pH value of the reaction product to 4.0 with acetic acid, then cool down to below 50°C and discharge, and the foam-free Anti-phenolic yellowing agent.

[0066] I...

Embodiment 2

[0068] Add 26 parts of methacrylic acid and 35 parts of deionized water into the reactor with stirrer, thermometer, balance feeder and condenser; add 14 parts of acrylic acid into the balance feeder of the reaction device; add 10 parts Sodium persulfate aqueous solution (the mass concentration of sodium persulfate is 20%) adds in another balance feeder of reaction unit; Open stirring, control rotating speed at 180 revs / min; After 75°C, start to add acrylic acid and sodium persulfate aqueous solution dropwise at the same time, after about 3 hours after the dropwise addition, raise the temperature to 85°C, and continue the heat preservation reaction for 6 hours; , after cooling down to 40°C, slowly add 12 parts of deionized water, 3.5 parts of diethylamine and 6.5 parts of monoethanolamine, continue the heat preservation reaction for 2 hours, adjust the pH value of the reaction product to 6.5-7.0, and then add 3 parts of citric acid After adjusting the pH value of the reaction p...

Embodiment 3

[0071] Add 29.5 parts of methacrylic sulfonic acid, 6.5 parts of 3-sulfonic acid propyl methacrylate potassium salt, 4 parts of acrylic acid, 0.2 parts of sodium bisulfite and 25 parts of deionized water into the feeder with agitator, thermometer and balance And in the reactor of condenser; Then 24 parts of ammonium persulfate aqueous solution (mass concentration of ammonium persulfate is 5%) add in another balance feeder of reaction device; Open stirring, control rotating speed at 150 rev / min; Open The heating device raises the temperature of the material in the reactor. After the temperature rises to 65°C, the ammonium persulfate aqueous solution is added dropwise. After the dropwise addition is completed in about 4 hours, the temperature is raised to 90°C, and the heat preservation reaction is continued for 4 hours; The reaction solution in the reactor was cooled down to 30°C, and then 14.5 parts of deionized water and 8.5 parts of diethanolamine were added to adjust the pH ...

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Abstract

The invention discloses a foamless phenolic yellowing resistant agent as well as a preparation method and application thereof. The foam-free phenolic yellowing resistant agent is an organic polymer with a sulfonic side chain, and the molecular structure of the foam-free phenolic yellowing resistant agent contains any one or more structural units with sulfonate shown in a formula I, a formula II, a formula III or a formula IV. The phenolic yellowing resistant agent is excellent in phenolic yellowing resistance, free of bubbles and free of blistering in the whole application process. The anti-phenolic yellowing agent can be applied to anti-phenolic yellowing treatment of textiles such as yarns, laces, braids, knitted fabrics, woven fabrics and the like made of fiber materials such as chinlon, polyester, acrylic fibers, spandex, cotton, rayon, tencel, modal, lyocell, silk, wool, cashmere, bamboo fibers, jute fibers and the like.

Description

technical field [0001] The invention belongs to the technical field of textile dyeing and finishing, and in particular relates to a non-foaming anti-phenol yellowing agent and a preparation method and application thereof. Background technique [0002] Various textiles such as textile yarns, fabrics, ribbons and clothing need to be packaged with polyethylene film and other materials during storage and circulation. The hindered phenolic antioxidant BHT (2,6-di-tert-butyl-p-cresol) is added to polyethylene during the production process. Antioxidant BHT is easy to absorb or store nitrogen oxides (NO) in air and packaging materials (such as cardboard, etc.) at room temperature x ) undergoes a chemical reaction to produce yellow DTNP (2,6-di-tert-butyl-p-nitrophenol). When the polyethylene packaging film is in direct contact with textiles, DTNP will sublimate and transfer to the surface of the fabric, thereby causing the yellowing of the fabric. This fabric yellowing caused by p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F228/02C08F220/06C08F220/56C08F112/14C08F212/14C08F220/38D06M15/356D06M101/34D06M101/38
CPCC08F228/02C08F212/30C08F112/30D06M15/3566D06M2200/25D06M2101/34D06M2101/38C08F220/06C08F220/382C08F220/56Y02P70/62
Inventor 罗灯洪朱文兵张继斌姚雷王亚静程宝峰
Owner 东莞市中纺化工有限公司
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