Article with organic/inorganic composite film and process for producing the same

An inorganic composite film and manufacturing method technology, applied in the direction of layered products, etc., can solve the problem of difficult formation of mechanical strength silica film, etc., and achieve the effect of superior mechanical strength and superior wear resistance

Active Publication Date: 2007-03-28
NIPPON SHEET GLASS CO LTD
View PDF10 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the organic-inorganic composite membrane is heat-treated at such a high temperature, the organic matter in the membrane will decompose
The constraint that heat treatment must be performed within the range of not decomposing organic matter limits the improvement of the mechanical strength of the film to be formed even in liquid-phase film-forming me

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

Example Embodiment

[0076] (Example A1)

[0077] In Example A1, a polyether phosphate-based surfactant was added to the coating liquid (forming solution). A polyether phosphate-based surfactant is also a source of phosphorus.

[0078] To 23.7 g of ethanol (manufactured by Katayama Chemical Co., Ltd.), 45.14 g of tetraethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd.), 27.16 g of pure water concentrated hydrochloric acid (35% by mass, manufactured by Kanto Chemical Co., Ltd.) 0.1 g, and a polyether phosphate-based surface active agent were added 3.9 g of an agent (manufactured by RUITELLA, Japan: ソルスパ一ス41000) was stirred to obtain a solution.

[0079] The content of silicon alkoxide (tetraethoxysilane) in the solution (in terms of silica), proton concentration, water content, organic polymer (hydrophilic organic polymer) content, etc. are shown in Table 1. . In addition, the water content (0.35 mass %) contained in ethanol was added to the water content and calculated. The proton conc...

Example Embodiment

[0084] (Example A2)

[0085] In Example A2, as the silica raw material, ethylsilicate was used together with tetraethoxysilane.

[0086] To 30.02 g of ethanol (manufactured by Katayama Chemical Co., Ltd.), 22.57 g of tetraethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd.), 16.25 g of ethylsilicate 40 (manufactured by Korukoto), and 27.16 g of pure water concentrated hydrochloric acid (35% by mass) were added. , Kanto Chemical Co., Ltd.) 0.1 g of a polyether phosphate-based surfactant (manufactured by Nippon Ryder: ソルスパ一ス41000) 3.9 g, and stirred to obtain a solution. Table 1 shows the proton concentration and the like in this solution.

[0087] In addition, "ethyl silicate 40" used here is represented by the following formula (1), and contains a colorless and transparent liquid in an amount corresponding to 40% by weight as a silica component (SiO2). Moreover, in addition to the condensate of a chain structure, the condensate of a branched or cyclic structure is als...

Example Embodiment

[0092] (Example A3)

[0093] In Example A3, instead of the polyether phosphate-based surfactant, polyethylene glycol was used, and phosphoric acid was added as a raw material of phosphorus.

[0094] To 23.69 g of ethanol (manufactured by Katayama Chemical), 45.14 g of tetraethoxysilane (manufactured by Shin-Etsu Chemical), 27.16 g of pure water, 0.1 g of concentrated hydrochloric acid (35 mass %, manufactured by Kanto Chemical), and phosphoric acid (85 mass %) were added. Kanto Chemical Co., Ltd.) 0.11 g polyethylene glycol 4000 (Kanto Chemical Co., Ltd.) 3.81 g, and stirred to obtain a solution. Table 1 shows the proton concentration and the like in this solution.

[0095] In addition, "polyethylene glycol 4000" used here is a polyethylene glycol whose weight average molecular weight is 4000.

[0096] Next, on the cleaned soda lime silicate glass substrate (100×100 mm), the formation solution was applied by flow coating at a humidity of 30% and room temperature. In this st...

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
Film thicknessaaaaaaaaaa
Film thicknessaaaaaaaaaa
Film thicknessaaaaaaaaaa
Login to view more

Abstract

An article with organic/inorganic composite coating formed, wherein the organic/inorganic composite coating is composed mainly of silica and will not be detached from the base material after Taber's abrasion resistance test prescribed in Japanese Industrial Standards (JIS) R 3212. This composite coating can be formed by a sol gel process from a coating liquid containing a hydrophilic organic polymer. In this liquid, for example, the amount of silicon alkoxide in terms of SiO2 concentration exceeds 3 mass%. When a phosphorus supply source is contained, the mass molarity of proton is in the range of 0.0001 to 0.2 mol/kg, and the molar amount of water is at least 4 times the total molar amount of silicon atoms contained in the silicon alkoxide. According to this sol gel process, there can be obtained a coating excelling in mechanical strength without the need to heat the base material to temperature higher than 400 DEG C and even when the coating thickness is as large as over 250 nm.

Description

technical field [0001] The present invention relates to an article on which an organic-inorganic composite film is formed and a method for producing the same, and more particularly to an article and a method for manufacturing the article on which a film formed by a sol-gel method and containing organic matter is excellent in mechanical strength. Background technique [0002] The glass material is generally rigid and can also be used in the form of a film covering the substrate. However, in order to obtain a glassy film, high-temperature treatment is required in the melting method, so materials constituting the substrate and the film are limited. [0003] The sol-gel method uses a solution of an organic or inorganic compound of a metal as a starting material, and through the hydrolysis reaction and polycondensation reaction of the compound in the solution, the solution is used as a sol in which particles of metal oxides or hydroxides are dissolved. A method in which solidifi...

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): B32B9/00
Inventor 井口一行佐佐木辉幸神谷和孝
Owner NIPPON SHEET GLASS 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