Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation methods of organic oxime rust transforming agent and aqueous iron rust transforming undercoat

A rust conversion agent and rust conversion technology, which is applied in the coating process of metal materials, etc., can solve the problems of less application, high cost of rusty coatings in the penetrating layer, and difficulty in wide-scale promotion, so as to achieve good coating quality and strong salt resistance Fog penetration ability, the effect of low surface treatment requirements

Inactive Publication Date: 2014-06-25
山东卡勒新材料有限公司
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cost of the rusty coating on the penetrating layer is relatively high, it is difficult to promote it on a large scale, and its application is seldom

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
  • Preparation methods of organic oxime rust transforming agent and aqueous iron rust transforming undercoat
  • Preparation methods of organic oxime rust transforming agent and aqueous iron rust transforming undercoat
  • Preparation methods of organic oxime rust transforming agent and aqueous iron rust transforming undercoat

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Synthesis of organic oxime rust conversion agent: Add 32.10g of methanol and 10.00g of toluene to a four-necked flask equipped with a stirring bar, a thermometer, a constant pressure dropping funnel and a condenser tube, and add 1.16g of Mg bars in batches at 65°C for reaction 5h, add 5g of toluene during the period, after the reaction is complete, start to heat up to 70-75°C, use the semi-continuous dropping process to add a mixed solution of 1.12g gallic acid and 17.33gDMF dropwise, react for 1h after the dropwise addition, and then add dropwise 16.10g formaldehyde solution, react for 1h, cool down to 60-65°C, then add dropwise a mixed solution of 5.40g hydroxylamine hydrochloride and 30.00g water, keep warm for 3h after the dropwise addition, take out and cool, and separate the product with a separatory funnel solution, and the lower layer was removed to obtain 3,4,5,-hydroxyl-2-oximinobenzoic acid rust conversion agent.

Embodiment 2

[0052] Synthesis of organic oxime rust conversion agent: Add 40.10g of methanol and 11.00g of toluene to a four-necked flask equipped with a stirring bar, a thermometer, a constant pressure dropping funnel and a condenser tube, and add 1.06g of Mg bars in batches at 65°C for reaction After 4.5h, after the reaction is complete, start to heat up to 70-75°C, and use a semi-continuous drop-in process to add a mixed solution of 1.35g gallic acid and 14.72gDMF dropwise. After the dropwise addition, react for 0.5h, then add dropwise 20.53g formaldehyde solution , reacted for 1 hour, lowered the temperature to 60-65°C, then added dropwise a mixed solution of 7.29g of hydroxylamine hydrochloride and 30.00g of water, and kept the reaction for 2.5 hours after the addition was completed. 3,4,5,-Hydroxy-2-oximinobenzoic acid rust converting agent was obtained from the lower layer.

Embodiment 3

[0054] Synthesis of organic oxime rust conversion agent: Add 42.05g of methanol and 13.01g of toluene to a four-necked flask equipped with a stirring bar, a thermometer, a constant pressure dropping funnel and a condenser tube, and add 1.00g of Mg bars in batches at 65°C for reaction 5h, after the reaction is complete, start to heat up to 70-75°C, add dropwise a mixed solution of 2.10g gallic acid and 18.90gDMF using a semi-continuous dropping process, react for 0.8h after the dropwise addition, and then add dropwise 21.20g formaldehyde solution, React for 0.5h, lower the temperature to 60-65°C, then add dropwise a mixed solution of 6.50g of hydroxylamine hydrochloride and 30.00g of water, keep it warm for 1h after the dropwise addition is complete, take it out and cool it down, separate the product with a separatory funnel, and remove the lower layer solution to obtain 3,4,5,-hydroxy-2-oximinobenzoic acid rust conversion agent.

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 relates to preparation methods of an organic oxime rust transforming agent and an aqueous iron rust transforming undercoat. The organic oxime rust transforming agent is prepared from the following raw materials in percentage by weight: 27%-35% of methanol, 0.7%-1.0% of Mg, 8.5%-12.7% of methylbenzene, 0.83%-1.75% of gallic acid, 11.3%-15.7% of N,N-dimethylformamide, 12.0%-17.5% of formaldehyde, 3.6%-5.8% of hydroxylamine hydrochloride and 20.1%-25.4% of deionized water. The aqueous iron rust transforming undercoat is prepared from the following raw materials in percentage by weight: 30%-60% of vinylidene chloride composite macromolecular emulsion, 1.5%-3.0% of butyl cellosolve, 1.0%-4.0% of a rust transforming agent and the balance of pigment filling slurry. The organic oxime rust transforming agent and the aqueous iron rust transforming undercoat are good in transforming property and can react chemically with iron rust to generate stable complexes, so that the iron dust is effectively sealed and isolated from external substances, thus achieving a rust prevention purpose.

Description

technical field [0001] The invention belongs to the technical field of metal anticorrosion coatings, and in particular relates to a preparation method of an organic oxime rust conversion agent and a water-based rust conversion primer. Background technique [0002] Steel structure engineering is a steel-based structure, which is one of the main types of modern building structures. No matter now or in the future, metal materials will play a pivotal role in the field of materials. Since steel accounts for 95% of metal usage, 70% of which are used in an atmosphere that is prone to rust, so by studying the corrosion protection technology of steel structure materials Effectively reducing the economic loss caused by corrosion is of great significance to the development of the national economy. As far as the current science and technology are concerned, it is unrealistic to solve the corrosion problem from the steel structure itself. Generally, the cost of stainless steel is expens...

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): C23F11/173C23F11/14C23C22/05
Inventor 葛圣松冯艳斐邵谦王俊祥李孟龙
Owner 山东卡勒新材料有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com