Unlock instant, AI-driven research and patent intelligence for your innovation.

Acidic galvanized carrier and preparation method thereof

A technology of acid galvanizing and carrier, applied in the field of acid galvanizing carrier and its preparation, it can solve the problems that it is difficult to achieve both dispersion leveling and brightness, poor leveling performance, good deep plating effect, etc., and achieve good penetration effect , Dispersion and avoidance of movement performance, better effect of movement performance

Active Publication Date: 2020-02-11
武汉奥邦表面技术有限公司
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to increase the cloud point of the carrier brightener in a strong electrolyte solution, it is necessary to convert the nonionic surfactant into an anionic surfactant through a sulfonation reaction. Currently, the main carrier brightener on the market is made of fatty alcohol polyoxyethylene Ether, alkylphenol polyoxyethylene ether and other nonionic surfactants are sulfonated with sulfamic acid, chlorosulfonic acid, etc., or esterified with maleic anhydride and then sulfonated with a sulfonating agent. This kind of carrier brightener is turbid The point is high but the foam is high and not easy to dissipate when used, the brightness is good in the high and medium current density area but the low area is not good, the deep plating effect is good but the leveling performance is not good, it is difficult to achieve both dispersion leveling and brightness; The environmental hormone problem and non-degradability of polyoxyethylene ether, the European Union and the United States have restricted its use range and dosage, and my country has also restricted its use in detergents. It is believed that in the future with increasingly severe environmental protection trends, alkylphenol The prohibition and substitution of polyoxyethylene ether will be a very real problem
[0005] Chinese patent CN102943288A discloses a carrier brightener for acidic potassium chloride galvanizing, which uses fatty alcohol polyoxyethylene ether or alkylphenol polyoxyethylene ether as raw material, first reacts with alkali metal hydroxide, and then reacts with 1, 3-propane sultone reaction, finally adjust the pH value, the material is layered, and the upper layer is a carrier brightener; this invention affirms the feasibility of the sultone reaction, but it is divided into two steps, and the first step needs to be Under the protection of nitrogen, the second step of the reaction requires liquid separation to obtain the product. The operation is cumbersome and not conducive to industrialization.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Acidic galvanized carrier and preparation method thereof
  • Acidic galvanized carrier and preparation method thereof
  • Acidic galvanized carrier and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] In a clean and dry 1000mL four-neck flask with a stirring and heating device, add 1mol of 2-ethylhexanol polyoxyethylene ether, 10.5g of NaOH and 200g of water, stir until dissolved, then raise the temperature to 45°C, and keep the temperature for 1.5h ; Slowly add 1mol of 2-chloropropyl-1,3-sultone into the bottle, after the addition, raise the temperature to 80°C and react for 4 hours, measure the solid content, adjust to the specified content with water, cool and discharge, and you can get Acid galvanized carrier.

Embodiment 2

[0035] In a clean and dry 1000mL four-necked flask equipped with a stirring and water bath heating device, add 1mol of Gulbet cetyl alcohol polyoxyethylene ether (10), 34.1g of KOH and 150g of water, stir until dissolved, and then raise the temperature to 40°C , keep warm for 1 hour; slowly add 1 mol of 2-bromopropyl-1,3-sultone into the four-neck flask, after the addition, raise the temperature to 90°C for 6 hours, measure the solid content, adjust to the specified content with water, After cooling and discharging, the acid galvanized carrier can be obtained.

Embodiment 3

[0037] In a clean and dry reaction kettle, add 10 mol of Gulbert lauryl alcohol polyoxyethylene ether (8), 215.2g of NaOH and 2kg of water, stir until dissolved, then heat up to 50°C, and keep the temperature for 2.5h; then heat up to 80 ℃, add 10mol of 2-bromopropyl-1,3-sultone into the dropping kettle, slowly add dropwise at a temperature of 80±5℃, after the addition, react for 5h, measure the solid content, adjust with water To the specified content, the material is cooled and discharged, and the acidic galvanized carrier is obtained.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an acidic galvanized carrier and a preparation method thereof and belongs to the technical field of electroplating. The preparation method of the carrier comprises the following steps of carrying out an insulating reaction for 0.5-1.5 h on gulbert-alcohol polyoxyethylene ether, an alkaline catalyst and a solvent A together at 40-50 DEG C in a stirring condition; and then adding 2-halopropyl-1,3-sultones into a reaction solution, then raising the temperature to 80-90 DEG C for an insulating reaction for 4-6 hours to obtain the acidic galvanized carrier. An acid galvanized additive prepared from the acidic galvanized carrier is high-temperature-resistant, free of turbidity point, small in amount of carrier, low in foam, quick to defoam, small in consumption and good in leveling performance and has an excellent low area walking property.

Description

technical field [0001] The present invention relates to ZnCl 2 , KCl or NaCl, H 3 BO 3 The invention relates to the field of acid galvanizing surface treatment as a raw material, and specifically relates to an acid galvanizing carrier and a preparation method thereof. Background technique [0002] my country's chloride bright galvanizing process has experienced more than 20 springs and autumns from development to large-scale application. Chloride galvanizing has high current efficiency, good coating brightness, simple and easy-to-handle wastewater components, and can be directly electroplated on various substrates. It has been greatly developed since then, and currently accounts for about 40% of the total galvanizing. The carrier brightener plays the role of refining the crystal and increasing the solubility of the main brightener. This kind of nonionic surfactant or anionic surfactant containing ethoxy or propoxy group greatly hinders the electron transfer reaction and ca...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/22
CPCC25D3/22
Inventor 蒋晟吕明威吕志
Owner 武汉奥邦表面技术有限公司