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A kind of organic composite corrosion inhibitor for pulp layer paper and its slurry

A composite corrosion inhibitor, pulp layer paper technology, applied in paper coating, coating, papermaking and other directions, can solve the problems of narrow corrosion inhibition range, difficult to control, insoluble in water, etc., to reduce self-corrosion rate, slow down Self-corroding, inexpensive effect

Inactive Publication Date: 2016-05-04
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the zinc-manganese batteries or pulp paper produced in industrialized production contain indium and bismuth. Indium is a noble metal, and the cost is high; the corrosion inhibition range of bismuth-containing corrosion inhibitors is narrow, difficult to control, and difficult to dissolve in water. Precipitation is easy to occur in the preparation process, which affects production, and is discharged into the environment as heavy metals, causing unimaginable harm to the environment

Method used

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  • A kind of organic composite corrosion inhibitor for pulp layer paper and its slurry
  • A kind of organic composite corrosion inhibitor for pulp layer paper and its slurry

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Preparation of organic composite high-efficiency corrosion inhibitor for pulp paper, wherein the selected ionic liquid is [C 4 mim] BF 4 0.0580g, the organic nonionic surfactant is a mixture of lauryl polyoxyethylene ether 0.0090g, PEG4000.1200g, Tween 800.0726g and coconut oil polyoxyethylene ether 0.0624g, wherein the water-soluble ionic liquid and organic nonionic surface The mass ratio of the active agent is 1:4.55.

[0034] Prepare the slurry for pulp layer paper according to the following method:

[0035] Accurately weigh 1.6g of PVA and add it to a beaker containing 35g of deionized water at 98°C, stir to dissolve it; when the temperature of the PVA aqueous solution drops to 50°C, add 20g of PAM and 1.6g of CMC in turn, and stir evenly; use 2mol / L HCl solution and ZnO Adjust the pH of the solution at 3.5; then add 7.3g of modified starch and the above-prepared organic compound high-efficiency corrosion inhibitor, the modified starch is a mixture of cross-linked...

Embodiment 2

[0038] Preparation of organic composite high-efficiency corrosion inhibitor for pulp paper, wherein the selected ionic liquid is [C 5 Bmim] BF 4 0.1025g, and the organic nonionic surfactant is a mixture of 0.1407g of polyoxyethylene lauryl ether and TX-100.0824g, wherein the mass ratio of the water-soluble ionic liquid to the organic nonionic surfactant is 1:2.18.

[0039] Prepare the slurry for pulp layer paper according to the following method:

[0040] Accurately weigh 1.8g of PVA and add it to a beaker containing 45g of deionized water at 98°C, stir to dissolve it; when the temperature of the PVA aqueous solution drops to 55°C, add 22g of PAM and 1.3g of CMC in turn, and stir evenly; use 2mol / L HCl solution and ZnO Adjust the pH of the solution to 3.8; then add 7.8g of modified starch and the organic composite high-efficiency corrosion inhibitor prepared above, the modified starch is cross-linked starch, stir well and adjust the viscosity to obtain the slurry, and the cor...

Embodiment 3

[0043] Preparation of organic composite high-efficiency corrosion inhibitor for pulp paper, wherein the selected ionic liquid is [C 2 mim]HSO 4 0.0830g, the organic nonionic surfactant is a mixture of 0.1524g lauryl polyoxyethylene ether, PEG4000.2368g, and OP-100.1050g, wherein the mass ratio of water-soluble ionic liquid to organic nonionic surfactant is 1:5.95 .

[0044] Prepare the slurry for pulp layer paper according to the following method:

[0045] Accurately weigh 1.3g of PVA and add it to a beaker containing 43g of 100°C deionized water, stir to dissolve it; when the temperature of the PVA aqueous solution drops to 58°C, add 18.5g of PAM and 1.4g of CMC in turn, and stir evenly; use 2mol / L HCl solution and ZnO adjusts the pH of the solution at 3.6; then add 7.1g of modified starch and the above-prepared organic composite high-efficiency corrosion inhibitor, the modified starch is etherified starch, stir thoroughly and adjust the viscosity to obtain the slurry, slow...

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Abstract

The invention discloses an organic composite corrosion inhibitor applicable to coated paper and a size thereof, and belongs to the field of corrosion and protection of metals; the coated paper is prepared from an organic composite corrosion inhibitor by compounding an ionic liquid and an organic non-ionic surfactant according to a weight ratio of 1:(1-10), wherein the organic composite corrosion inhibitor accounts for 0.001-1.0% of the total mass of the size; the size comprises the following components in percentage by mass: 1-10% of PVA (Polyvinyl Acetate), 10-50% of PAM (Polyacrylamide), 1-5% of CMC (Carboxyl Methyl Cellulose), 1-15% of modified starch and the balance of deionized water. According to the organic composite corrosion inhibitor applicable to the coated paper, an imidazoles water soluble ionic liquid is capable of significantly improving electrical conductivity and corrosion inhibition to the zinc; an organic nonionic surfactant is capable of making up the defect that the viscosity of the size is improved through the ionic liquid; a good synergistic effect is achieved by compounding the imidazoles water soluble ionic liquid and the organic nonionic surfactant, so that the corrosion of zinc electrodes can be effectively inhibited; the organic composite corrosion inhibitor is environment-friendly; the size is simple in preparation process; the coated paper is used in zinc-manganese batteries and prepared into green mercury-free batteries; the corrosion of the zinc can be effectively inhibited; the discharging time and storage performance of the batteries can be improved; and the coated paper shows good industrial application prospects.

Description

technical field [0001] The invention relates to a corrosion inhibitor for inhibiting metal zinc corrosion, in particular to an organic composite corrosion inhibitor used in zinc-manganese battery slurry layer paper for inhibiting zinc electrode corrosion and the slurry prepared by using the corrosion inhibitor. Background technique [0002] Zinc-manganese battery has the advantages of cheap and easy-to-obtain raw materials, simple production process, easy to carry, suitable for intermittent discharge occasions, etc., and has become one of the indispensable chemical power sources in people's daily life. Zinc is used as both the negative electrode and the shell in the zinc-manganese battery. It will self-discharge during long-term storage, resulting in hydrogen evolution reaction, resulting in battery perforation, leakage, swelling, and even explosion in severe cases. In order to solve this problem, the amalgamation method has been used in the past to make the surface properti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23F11/14D21H21/14D21H19/20D21H19/34D21H19/14
Inventor 赵地顺崔云屈冠伟屈海刘静
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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