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

A kind of self-lubricating non-stick aluminum-melting environment-friendly coating and coating film and preparation method thereof

An environmentally friendly coating and self-lubricating technology, applied in coatings, manufacturing tools, casting molding equipment, etc., can solve the problems of cast aluminum release agent toxicity, harsh application process conditions, complex preparation process, etc., to achieve excellent results and easy The effect of preparation, temperature resistance and stability

Active Publication Date: 2021-07-27
陕西宝塔山油漆股份有限公司 +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the above-mentioned defects in the prior art, the object of the present invention is to provide a self-lubricating non-stick aluminum-melting environmentally friendly coating and a preparation method thereof, which solves the problem of toxicity and the preparation process of the existing cast aluminum release agent. Complicated, harsh application process conditions, high temperature, high energy consumption, not environmentally friendly, easy cracking of the coating film and powder drop problems

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
  • A kind of self-lubricating non-stick aluminum-melting environment-friendly coating and coating film and preparation method thereof
  • A kind of self-lubricating non-stick aluminum-melting environment-friendly coating and coating film and preparation method thereof
  • A kind of self-lubricating non-stick aluminum-melting environment-friendly coating and coating film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0042] The invention provides a method for preparing an environmentally friendly paint that is self-lubricating and does not stick to molten aluminum, comprising:

[0043] 1) Mix the silane coupling agent containing amino group or epoxy group, deionized water and tetramethylammonium hydroxide according to the mass ratio of (20~60):(30~50):(0.1~1), Ultrasonic dispersion for 30 minutes, hydrolysis at room temperature for 7 days, and preparation of polysiloxane oligomer aqueous solution I with a viscosity lower than 100 mPa·S;

[0044] Among them, silane coupling agents containing amino groups include 3-aminopropyltrimethoxysilane, N-(2-aminoethyl)-3-aminopropyltrimethoxysilane, 3-ureapropyltrimethoxysilane, Bis-[3-(methoxysilyl)-propyl]-amine or 3-anilinopropyltrimethoxysilane.

[0045] Silane coupling agents containing epoxy groups include 2-(3,4-epoxycyclohexyl)ethyltrimethoxysilane, 3-(2,3-epoxypropoxy)propyltrimethoxysilane or 3-(2,3-Glycidoxy)propylmethyltrimethoxysilane....

Embodiment 1

[0053] (1) Prepare 3-aminopropyltrimethoxysilane, deionized water (DI), and tetramethylammonium hydroxide (TMAH) according to the mass ratio of 20:30:0.2, disperse them with ultrasonic waves for about 30 minutes, and then It was hydrolyzed for 7 days at normal temperature (23±2° C.) to prepare polysiloxane oligomer aqueous solution I with a viscosity lower than 100 mPa·S.

[0054] ⑵Put 20 parts of deionized water (DI) into the beaker, add 10 parts of BYK-190 dispersant to it at the speed of 100rpm / min, disperse for 8min, and add 2 parts of dipropylene glycol butyl ether, 30 10 parts of boron nitride, 10 parts of talcum powder, 10 parts of low temperature glass powder, 5 parts of Al 2 o 3 Disperse it for 25min.

[0055] (3) After dispersion, add 3 parts of gas phase SiO 2 , and then dispersed for 5 minutes to prepare the aqueous slurry II.

[0056] (4) Mix polysiloxane oligomer aqueous solution Ⅰ and slurry Ⅱ according to different ratios of 10:90, ultrasonically disperse f...

Embodiment 2

[0059] (1) N-(2-aminoethyl)-3-aminopropyltrimethoxysilane, deionized water (DI), tetramethylammonium hydroxide (TMAH) and other materials are mixed according to the mass ratio of 30:35:0.2 Proportional configuration, ultrasonic dispersion for about 30 minutes, and then hydrolysis at room temperature (23±2°C) for 7 days to prepare polysiloxane oligomer aqueous solution I with a viscosity lower than 100mPa·S.

[0060] ⑵Put 60 parts of deionized water (DI) into the beaker, add 2 parts of BYK-190 dispersant to it at the speed of 200rpm / min, disperse for 5min, add 5 parts of dipropylene glycol butyl ether, 40 Parts of boron nitride, 15 parts of talcum powder, 15 parts of low temperature glass powder, 5 parts of Al 2 o 3 Disperse it for 30min.

[0061] (3) After dispersion, add 2 parts of gas phase SiO 2 , and then dispersed for 10 minutes to prepare the aqueous slurry II.

[0062] (4) Mix polysiloxane oligomer aqueous solution I and slurry II according to different ratios of 15...

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

PropertyMeasurementUnit
melting pointaaaaaaaaaa
thermal resistanceaaaaaaaaaa
melting pointaaaaaaaaaa
Login to View More

Abstract

The invention discloses a self-lubricating and non-stick aluminum-melting environment-friendly coating, a coating film and a preparation method thereof, comprising mixing a silane coupling agent containing an amino group or an epoxy group, deionized water, and tetramethylammonium hydroxide, and ultrasonically Disperse, hydrolyze, and prepare polysiloxane oligomer aqueous solution I; disperse deionized water and dispersant, and add dipropylene glycol butyl ether, boron nitride, talc powder, low-temperature glass powder, Al 2 o 3 Disperse it; then add gas phase SiO 2 , disperse, that is, prepare the water-based slurry II; mix the polysiloxane oligomer aqueous solution I and the slurry II, and ultrasonically disperse, that is, prepare an environmentally friendly coating with self-lubricating non-stick melting aluminum. The coating film prepared by this coating is stable and reliable at 800°C, non-toxic, free from powder removal, cracking, discoloration, and gasification on the surface, self-lubricating, non-sticky and molten aluminum liquid, and can be used as an environmentally friendly, clean and efficient coating for casting aluminum The release agent has the characteristics of simple preparation process, convenient construction, and environmental protection.

Description

technical field [0001] The invention belongs to the preparation coating technology of organic-inorganic hybrid materials, and in particular relates to a self-lubricating and non-stick melting aluminum environmental protection coating and coating film and a preparation method thereof. Background technique [0002] Aluminum and its alloys are widely used as lightweight, high-strength materials in industrial applications. Generally, sand molds are used to shape the aluminum after electrolysis. Since the sand molds are generally hot-pressed with phenolic resin and fine sand, the repeated application is low and the production efficiency is affected. Secondly, the sand molds are continuously crushed and bonded with solid resin to shape, dust It is relatively large and has a serious impact on the environment. Again, sand molds are difficult to improve the dimensional accuracy of aluminum castings. After using self-lubricating non-stick melting aluminum coating, not only sand molds...

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 Patents(China)
IPC IPC(8): B22C3/00
CPCB22C3/00
Inventor 陈杰史素青李斌赵辉来信米笑飞郑渊钊褚竹竹
Owner 陕西宝塔山油漆股份有限公司
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