KR20060111939A - The manufacture method of bio-ceramic product having functions - Google Patents

Abstract

A process of fabricating functional bioceramic product having honeycomb type of bioceramic structure is provided to produce the bioceramic product with intrinsic removal of cement toxicity, anion and far-infrared ray emission, deodorization and anti-microbial effect by forming the honeycomb structure of the bioceramic material and adhering nano-silver particles inside the structure. The process comprises the steps of: preparing raw sol by admixing SiO2 and Al2O3 in a ratio by weight of 6:4; introducing I.P.A to the sol in a ratio of 5:5 while raising temperature up to 40-50deg.C; forming a condensation reactive product by slowly agitating the mixture for 3 hours; deriving poly-condensation of the reactive product by admixing a mixture of distilled water and inorganic binder in a ratio by weight of 6:4 with the reactive product in a ratio of 5:5, and then agitating the admixture for 1 hour; agitating the mixture at 100-130deg.C for 2-3 hours to form gel; adding nano-particle, which contains nano silver and titanium dioxide particles in distilled water, to the gel in a ratio by weight of 30-50wt.%; and entering the resulting material in an agitator containing platinum catalyst, agitating the material at 3-5rpm for 3 hours and aging the resulting product for 24 hours.

Description

The manufacture method of bio-ceramic product having functions}

1 is a graph showing a functional bioceramic far infrared radiation energy measurement result according to the present invention;

Figure 2 is a formaldehyde deodorization test results according to the time passed on the functional bioceramic according to the present invention

Figure 3 is the antimicrobial test results according to the time passed on the functional bioceramic according to the present invention

The present invention relates to a method for producing a functional bioceramic, and more particularly, in the manufacture of a bioceramic, the bioceramic structure is prepared in a honeycomb form, followed by polycondensation of a titanium dioxide sol and a silver nanosolution prepared by a water method to produce silver nanoparticles. It is attached in the honeycomb structure of the ceramic so as to have deodorization and antibacterial ability in addition to the intrinsic cement toxicity removal, anion and far infrared generation of the bioceramic.

At present, bioceramic manufacturing methods have been studied and put into practical use, and mainly silicon dioxide and aluminum oxide are mixed as fine powders, mixed with organic binders to form products necessary for household goods, and the degree of 800 ~ 900 ℃ It is used in the manufacture of household goods and building materials by firing at high temperature and burning organic binders to obtain pure bioceramic products.

In addition, with the development of the well-being business, silicon dioxide and aluminum oxide are sol-gel-coated solution that is applied to the cement wall to absorb the cement poison and to emit far infrared rays and anions from the wall. Formaldehyde, volatile organic compounds and odor removal, atopic bacterial sterilization, etc., which correspond to the sick house syndrome within, are difficult.

The present invention has been made to improve such a conventional problem, in the production of bioceramic with titanium dioxide and aluminum oxide, nanoparticles composed of honeycomb by polymerization reaction and titanium dioxide acting as a photocatalyst and antimicrobial action. After polycondensation by adding a solution dispersed in pure water by water method and stirring at a medium temperature (150 ~ 200 ℃) for more than 24 hours in a reactor using a platinum catalyst titanium dioxide and silver nanoparticles in the interior of the honeycomb bioceramic When attached to the cement wall, fiber, etc. by attaching to the far infrared, negative ion generation and deodorization, antibacterial effect at the same time to expand the applicability.

The present invention relates to a functional bioceramic manufacturing method, and a detailed manufacturing method is as follows.

Silicon dioxide solution (SiO ₂ ) and aluminum oxide solution (Al ₂ O ₃ ) were mixed and stirred at a weight ratio of 6: 4 to form a raw material sol, and the sol was heated to a temperature of 40 to 50 ° C., followed by isopropyl alcohol (I.PA). .) Was added in a 5: 5 ratio with the sol and stirred slowly for about 3 hours to induce a condensation reaction, and then a mixture of distilled water and an inorganic binder in a 6: 4 ratio for hydrolysis was added with a 5: 5 ratio. Mix and polycondense by stirring for 1 hour.

Using the polycondensed solution as a raw material, the mixture was slowly stirred while maintaining a temperature of about 100 to 130 ° C. for 2 to 3 hours, and then made into a gel state. Nanoparticles of silver and titanium dioxide prepared in the nanoparticles were dispersed in distilled water by the water method. Functional bioceramic, characterized in that after mixing water and gel in a ratio of 30 to 50% by weight, put it in a platinum-catalyzed agitator for 3 hours at a speed of 3 to 5rpm and after a aging period of 24 hours It provides a manufacturing method.

The test results of the functional bioceramic thus prepared will be described with reference to the drawings.

Fig. 1

1 is an embodiment of a functional bioceramic prepared according to the present invention according to the results analyzed by the Korea Institute of Construction Materials test results measured radiation energy compared to the black body (Black Body) using the FT-IR spectrometer at a temperature of 40 ℃ 3.92 x 10 ² w / m ² .mu.m indicates that sufficient far-infrared radiation is achieved as a bioceramic.

[Figure 2]

Figure 2 is an embodiment of a functional bioceramic prepared according to the present invention E. coli test results by the KICM-FIR-1002 (Silake Flask Method) method in the Korean building materials test report 24 hours at an initial concentration of 378 (CFU / 40P) After 3 (CFU / 40P) 99.2%, Pseudomonas aeruginosa was sterilized more than 99.0% to 4 (CFU / 40P) after 24 hours at 378 (CFU / 40P), showing excellent antibacterial and sterilization ability.

3

Figure 3 is an example of a functional bioceramic prepared according to the present invention formaldehyde removal ability test results by KICM-FIR-1085 method in the Korea Building Materials Testing Laboratory after 120 minutes at 81ppm concentration concentration of 95.7% It has been shown to be capable of decomposing and shows excellent ability to formaldehyde, the causative agent of sick house syndrome.

The present invention is to prepare the bioceramic structure in a honeycomb form in order to add antibacterial and deodorizing ability in addition to the far-infrared radiation ability of the existing bioceramic, the ability to remove the cement toxicity, and then the silver and titanium dioxide of the nanoparticles in the honeycomb ceramic structure It is expected to have high utilization in well-being business as it is manufactured in liquid form so that it can be used for various purposes such as floor covering, wallpaper, bedding, etc.

Claims (1)

Silicon dioxide solution (SiO ₂ ) and aluminum oxide solution (Al ₂ O ₃ ) were mixed and stirred at a weight ratio of 6: 4 to form a raw material sol, and isopropyl alcohol (I.PA.) was heated to 40 to 50 ° C. Was added to the sol 5: 5 ratio and then slowly stirred for about 3 hours to form a condensation reaction, and mixed with distilled water and inorganic binder in a 6: 4 weight ratio with a condensation reaction in a 5: 5 ratio and stirred for about 1 hour. After induction of the polycondensation reaction, the mixture was stirred for 2 to 3 hours at a temperature of about 100 to 130 ° C. to form a gel, and nanoparticles obtained by dispersing silver nanoparticles and titanium dioxide nanoparticles in distilled water by the water method were gel and weight ratios. After mixing at 30-50% ratio, put into a platinum-catalyzed agitator and stirred for 3 hours at a speed of 3 to 5rpm, and then produced through a aging period of 24 hours, characterized in that the functional bioceramic manufacturing method

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