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

Superhard non-stick silicon cooker coating prepared by sol-gel hybridization technique

A technology of sol and cooking utensils, applied in the direction of coating, etc., to achieve good commercial value, social significance, and excellent performance

Inactive Publication Date: 2011-04-06
DONGGUAN EONTEC CO LTD
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in recent years, many scientific research reports have pointed out that "Teflon" paint may release a carcinogenic harmful substance when it is overheated.

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
  • Superhard non-stick silicon cooker coating prepared by sol-gel hybridization technique
  • Superhard non-stick silicon cooker coating prepared by sol-gel hybridization technique

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0038] B. Preparation of silica sol: use sol-gel to synthesize silica sol, accurately control the characteristics of silica sol, such as particle shape, solid content (30-40% in general), particle size: 80-120nm, SiO 2 Particle porosity: 40-60%, dispersion medium: absolute ethanol, Ph value: 8-10.

[0039] C. Additives: An appropriate amount of additives can not only effectively improve the thermal stability of nano-ceramic coatings, but also have a significant effect on the mechanical strength of the coatings. Al2O is introduced through natural mineral raw materials, kaolin, talc, wax stone, etc. 3 , SiO 2 , ZrO 2, MgO and other components to improve the comprehensive performance of nano-ceramic coatings.

Embodiment

[0041] Step 1. Modification: Take 40% of nano-silica and place it in an ultrasonic cleaner, add 0.6% silane coupling agent, ultrasonically disperse for 30 minutes, transfer to a magnetic stirrer, add 0.4% silane coupling agent, and stir at a high speed of 1.0 Filter after ~5.0 hours;

[0042] Step 2, solization: first add 30% ethyl orthosilicate, 0.4% silane coupling agent and 10% absolute ethanol into the beaker, stir for 20 minutes to mix the three evenly; then press ethyl orthosilicate Add 15% distilled water at a ratio of 2:1 to distilled water, and stir for 25 minutes to mix the two evenly;

[0043] Step 3, gelation: add 8% magnesium and calcium compounds (0.2mol / L magnesium carbonate, calcium carbonate solution) to the mixed solution, keep stirring for 2.0 hours, so that the hydrolysis reaction is complete, and the silica sol can be obtained , then seal it with plastic film, and let it stand for about 24 hours; then fully soak the quartz plate in chromic acid washing so...

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 superhard non-stick silicon cooker coating prepared by a sol-gel hybridization technique. The coating comprises the following components: 30-50% of nanometer silica, 20-40% of silicic acid compound, 5-10% of magnesium-calcium compound, 3-5% of ammonium chloride, 0.5-2.0% of catalyst, 1-4% of accessory ingredient, 0.5-2.0% of silane coupling agent, 15-25% of multielement organosilicon material, 5-10% of absolute ethyl alcohol and 10-20% of distilled water. The preparation method of the coating comprises the following steps: using a sol-gel method to synthesize nano CaO-SiO2 power; replacing Ca by Mg to develop a (Ca, Mg)SiO3 nano power material; introducing low-temperature sintered assistant precursors into sol to reduce the sintering temperature of ceramics; and adding a defined amount of organosilicon material to adjust the hardening temperature of the ceramics to obtain the low-temperature sintering nano ceramic coating at the temperature below 250 DEG C. The superhard non-stick silicon cooker coating has strong adhesive force, high hardness, small possibility of scratch, and impact resistance, is non-toxic and environment-friendly, and can completely replace Teflon non-stick coatings.

Description

technical field [0001] The invention belongs to the technical field of chemical industry and relates to materials for surface treatment and coating protection of magnesium-aluminum alloy cookware, in particular to a superhard non-stick silicon cookware coating prepared by sol-gel hybridization technology. Background technique [0002] Teflon (Teflon) is polymerized from tetrafluoroethylene TFE. It has excellent processing properties, heat resistance (-200 ° C ~ 260 ° C) and high lubricating properties, and is widely used as a coating on the surface of non-stick cookware . However, many scientific research reports in recent years have pointed out that "Teflon" paint may release a carcinogenic harmful substance when it is overheated. Relevant agencies of the European Union and the United States banned its use in the European and American markets in 2007 and 2015, respectively. Therefore, be badly in need of seeking a kind of coating that can replace " Teflon " as the surface...

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): C09D1/00
Inventor 李扬德
Owner DONGGUAN EONTEC CO LTD