Diammine silver fluoride modified aluminum alloy anode oxide film nickel-free sealant and preparation method thereof

A technology of anodic oxidation film and silver ammonium fluoride, applied in the direction of electrolytic coating, surface reaction electrolytic coating, coating, etc., can solve antibacterial, corrosion resistance, heat resistance, salt spray resistance, wear resistance, anti Poor oxidation resistance, toughness, hardness, shrinkage affect the sealing performance, poor sealing performance of the oxide film gap, etc., to achieve the effect of improving acid and alkali resistance, improving SO42- interference, and improving the sealing effect

Inactive Publication Date: 2015-12-30
MAANSHAN JIECHUANG PLASTIC TECH CO LTD
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this process still has shortcomings, anti-SO 4 2- The interference is poor, and the permeability is not good, the gap sealing performance of the bottom layer of the oxide film is not good, and there are also poor performances such as a...

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] A nickel-free sealing agent for aluminum alloy anodized film modified by ammonia silver fluoride, which is made of the following raw materials in parts by weight (kg): magnesium acetate 8, triethanolamine 19, ammonium acetate 3, deionized water, oleic acid Sodium 0.3, salicylic acid 0.6, polyvinylpyrrolidone 0.4, silver ammonia fluoride 0.7, lithium silicate 0.4, dodecafluoroheptylpropyltrimethoxysilane 2.6, tetrabutyl titanate 1, ethanol 45, ammonia water 8.6, Fluorosurfactant 0.3.

[0012] The preparation method of the nickel-free sealing agent for the aluminum alloy anodized film modified by silver ammonia fluoride comprises the following steps:

[0013] (1) Mix tetrabutyl titanate and ethanol, stir to obtain tetrabutyl titanate ethanol solution, mix lithium silicate, dodecafluoroheptylpropyltrimethoxysilane, and fluorine-containing surfactant, add 5 wt. A portion of water was stirred evenly to obtain a solution, and the solution was dripped into the tetrabutyl tita...

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 a diammine silver fluoride modified aluminum alloy anode oxide film nickel-free sealant. The sealant is prepared from, by weight, 8-8.5 parts of magnesium acetate, 19-20 parts of triethanolamine, 3-3.2 parts of ammonium acetate, a defined amount of deionized water, 0.3-0.5 part of sodium oleate, 0.6-0.7 part of salicylic acid, 0.4-0.5 part of polyvinylpyrrolidone, 0.7-0.9 part of diammine silver fluoride, 0.4-0.5 part of lithium silicate, 2.6-2.8 parts of dodecafluoroheptyl-propyl-trimethoxysilane, 1-1.2 parts of tetrabutyl titanate, 45-48 parts of ethanol, 8.6-9 parts of ammonium hydroxide and 0.3-0.4 part of fluorine-containing surfactant. According to the sealant, by using sodium oleate, salicylic acid, polyvinylpyrrolidone and diammine silver fluoride for conducting further modification, the sealant is good in penetrability, high in hole sealing efficiency and good in sealing effect, thereby the acid and alkali resistance of an oxide film are greatly improved, and meanwhile the abrasion resistance is improved.

Description

technical field [0001] The invention relates to the technical field of nickel-free sealing agent for aluminum alloy anodic oxidation film, in particular to a nickel-free sealing agent for anodic oxidation film of aluminum alloy modified by ammonia silver fluoride and a preparation method thereof. Background technique [0002] At present, aluminum and its alloys generally use anodic oxidation surface protection technology to form a certain thickness of oxide film on the surface of aluminum and its alloys. Since there are a large number of micropores on the surface of the oxide film, appropriate sealing treatment must be carried out. The common sealing methods are mainly Boiling water (or steam) sealing, nickel salt sealing, polymer resin sealing. The boiling water (or steam) sealing method has high energy consumption and cannot meet the requirements for higher corrosion resistance; the commonly used nickel salt sealing agent contains Ni 2+ , F － It is toxic to the human bod...

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
IPC IPC(8): C25D11/18
Inventor 吴传兴
Owner MAANSHAN JIECHUANG PLASTIC TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap