KR20200016696A - Preparation of boron nanoparticles for deodorant and deodorant composition containing the same - Google Patents

Abstract

One embodiment of the present invention provides a deodorant composition comprising boron nanoparticles for deodorization. The present invention is excellent in terms of productivity and economic efficiency, because of the excellent deodorizing performance and a simple preparation process.

Description

Preparation of deodorant boron nanoparticles and deodorant composition comprising same {Preparation of boron nanoparticles for deodorant and deodorant composition containing the same}

The present invention relates to a deodorizing composition comprising boron nanoparticles and a method for producing the same, and more particularly, to a deodorizing composition comprising a boron particle surface-modified with a hydroxyl group, an alkoxy group or a carboxyl group and a method for producing the same.

Odor removal methods include traditional methods such as chemical removal, physical chemical removal, biochemical removal, and sensory deodorization.

The chemical removal method is a method of transforming odorous substances into decomposed or odorless compounds by acting highly reactive substances on odorous components by using chemical reactions such as neutralization, addition, polymerization, oxidation, reduction, and hydrolysis. To remove it.

The physicochemical removal method is a compound having strong adsorption and trapping ability such as activated carbon, silica, cyclodextrin, etc., which adsorbs or collects odor components on the surface, absorption by high boiling point solvent, surfactant, etc., liquid paraffin, higher alcohol, synthetic resin, etc. It is a method of removing odorous substances by coating using.

The biochemical removal method is a method of removing odor by blocking the generation of odor components by bacteria by disinfecting by cationic surfactants, fungicides or the like, or by decomposing organic acids as odor components using digestive enzymes, bacteria, and yeasts.

The sensory deodorization method is a removal method by masking a smell that cancels sensory neutralization or odor by using aromatic fragrance for the target malodorous component.

Various substances are used for the purpose of sterilization / antibacterial, and inorganic complex compounds are known to have excellent sterilizing ability to sterilize fungi and viruses including bacteria while being harmless to the human body. However, in spite of the excellent effect of the inorganic complex compound, it has a disadvantage that it does not work in the absence of ultraviolet light or sunlight due to the action of ultraviolet light or sunlight.

In order to effectively remove odors, it is required to simultaneously remove the causes of odors, mask odors, and remove odor-causing substances efficiently. To this end, while providing the components capable of achieving the above effects, the components are stably present. There is a demand for a method that can perform the function.

The present invention is to solve the above-mentioned problems of the prior art, an object of the present invention is to provide a deodorizing composition which is excellent in deodorizing performance and the manufacturing process is economically advantageous.

One aspect of the present invention, boron nanoparticles, provides a deodorizing boron nanoparticles in which one or more groups of a hydroxy group, alkoxy group, carboxyl group is bonded to the boron nanoparticles surface.

The particle size of the boron nanoparticles may be boron nanoparticles having a hydroxyl group, an alkoxy group or a carboxyl group of 5 to 400 nm bonded to the surface, and the deodorizing composition may further include a binder resin.

As used herein, the term "boron nanoparticles" refers to boron particles whose surface is made of hydride, "deodorant boron nanoparticles" is the surface of the hydroxy group, alkoxy group, the surface of at least one of the carboxyl group. Can be understood as a modified concept.

The nanoparticles in the deodorant composition may be included in the form of a solution diluted to a concentration of 1 ~ 1,000ppm.

For example, the deodorizing boron nanoparticles have excellent deodorizing performance. In addition, it can exhibit antibacterial / sterilization function, air purification function, and can be applied to various fields because it is harmless to human body.

In one embodiment, the content of the nanoparticles in the deodorant composition may be 1 ~ 50,000ppm.

In one embodiment, the deodorizing composition may further comprise a binder resin.

In one embodiment, the binder resin is low density polyethylene, high density polyethylene, polypropylene, polystyrene, polyamide, polyester, polyvinyl alcohol, ethylene-propylene copolymer, polyurethane, polyurea, silicone resin, epoxy resin and these It may be one selected from the group consisting of one or more of the materials.

The polyurethane may be synthesized using polyols and (poly) isocyanates as precursors, wherein the polyols are polycarbonate-based, polyester-based, polyacrylate-based, polyalkylene-based, and at least one of them. It may be one selected from. The weight average molecular weight (Mw) of the polyol may be 50 to 5,000. In addition, the polyol may include a low molecular weight crosslinking agent having a weight average molecular weight (Mw) of 20 to 500 up to 45% by weight.

The said polyester refers to the polyester obtained by polycondensing aromatic dicarboxylic acid and aliphatic glycol. Typical polyesters include polyethylene terephthalate (PET), polyethylene-2,6-naphthalenedicarboxylate (PEN), and the like. The polyester may also be a copolymer containing a third component. Examples of the dicarboxylic acid component of the copolymerized polyester include isophthalic acid, phthalic acid, terephthalic acid, 2,6-naphthalenedicarboxylic acid, adipic acid, sebacic acid, oxycarboxylic acid (for example, P-oxybenzoic acid and the like). And ethylene glycol, diethylene glycol, propylene glycol, butanediol, 1,4-cyclohexanedimethanol, neopentyl glycol and the like as the glycol component. The dicarboxylic acid component and glycol component may use 2 or more types together.

In one embodiment, the nanoparticles may be surface-modified by one selected from the group consisting of alkoxy groups, hydroxyl groups, and carboxyl groups and one or more thereof.

In the production of boron nanoparticles can be implemented by the additional use of fluorine-based gas, such as sulfur hexafluoride (SF6). The fluorine-based gas may be decomposed into a fluorine element and other elements by acting as a source gas and a catalyst gas in the production of the nanoparticles, in which the fluorine element is bonded to the surface of the nanoparticles and thus the surface of the nanoparticles. It is possible to suppress the oxidation reaction occurring naturally in the and the excessive production of the oxide film accordingly.

The nanoparticles may be dispersed in a solvent such as water and an organic solvent to prepare a deodorant composition, and may be dispersed in glycerin, a higher alcohol, an aromatic polyol, a carboxylate, a surfactant, a hydrogel, and the like to be prepared as a gel deodorant composition. It may also be dispersed in various binder resins and prepared into a resinous deodorant composition.

The solution type deodorant composition may be processed into a product such as a liquid fragrance such as a coating agent and a diffuser. The gel deodorant composition may be processed into products such as soaps, hand cleaners, shampoos, body lotions, hair gels, hair gels, hair sprays, and the like. The resinous deodorant composition can be processed into products in the form of fibers, fabrics, nonwovens, films, sheets. Further, the solution-type deodorant composition may be processed into a product in which the solution-type deodorant composition is coated on the surface of a substrate such as a fiber, a nonwoven fabric, a film, or a sheet prepared from the resinous deodorant composition.

Deodorizing composition according to an aspect of the present invention, by controlling the particle size and content of the boron nanoparticles in a certain range is excellent in deodorizing performance, the manufacturing process is simple and advantageous in terms of productivity and economics.

It is to be understood that the effects of the present invention are not limited to the above effects, and include all effects deduced from the configuration of the invention described in the detailed description or claims of the present invention.

Hereinafter, with reference to the accompanying drawings will be described the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is "connected" to another part, it includes not only the case where it is "directly connected" but also the case where it is "indirectly connected" with another member in between. . In addition, when a part is said to "include" a certain component, it means that unless otherwise stated, it may further include other components rather than excluding the other components.

Hereinafter, embodiments of the present invention will be described in detail.

Preparation Example 1

Boron nanoparticles can be prepared according to Scheme 1 below (1).

<Scheme 1>

2B ₂ H ₆ + SF ₆ → 4B (B NPs) + 6HF + 3H ₂

Diborane gas (B ₂ H ₆ ), catalyst gas sulfur hexafluoride (SF6) and nitrogen are mixed and injected into the reaction chamber to irradiate a CO ₂ laser beam. At this time, the sulfur hexafluoride (SF6) gas is a catalyst. It acts as a gas, and energy absorbed at a wavelength of 10.6 ㎛ is efficiently transferred, and the boron nanoparticles (B-NPs) are generated by breaking the BH bond of diborane gas well.

In addition, compared to the raw material gas diborane gas is 90% or more of the total volume, if necessary, the catalyst gas (sulfur hexafluoride, SF6) is adjusted to the range of 10% or less of the total volume. In addition, the carrier gas nitrogen is no more than 400 parts by volume compared to the diborane gas source gas. The flow rate of gas is in sccm. Process pressure inside the reaction chamber is prepared by setting in the range of 100 ~ 400 Torr. In this range, boron nanoparticles (B-NPs) having a size of 5 to 400 nm are prepared.

division Example 1-1 Example 1-2 Example 1-3 Example 1-4 Example 1-5 Raw material gas (sccm) 300 500 700 1000 1500 Catalyst gas (sccm) 15 36 60 80 105 Carrier gas (sccm) 400 400 400 500 500 Process pressure (Torr) 350-200 350-200 250-100 250-100 200-100 Particle Size (nm) 20-30 20-30 20-30 20-30 20-30

Preparation Example 2 Preparation of Surface Modified Boron Nanoparticles

(B NPs) + ROH → H ₂ (g) + (BNPs) -OR

(R may be any one selected from the group consisting of hydrogen, alkyl, aminoketyl group, aryl group, aminoalkylaminoalkyl group, aminoalkyl group, aminocycloalkyl group, aminoalkenyl group, aminocycloalkenyl group and aminoallyl group.)

The boron nanoparticles prepared in Preparation Example 1 were reacted with water, ethanol, glycerin and hexanoic acid according to Scheme 2 to prepare surface-modified boron nanoparticles (Preparation Examples 2-1 to 4).

Example 1

Deodorizing boron nanoparticles prepared according to Preparation Example 2 (Preparation Examples 2-1 to 4) were deodorized boron nanoparticles surface-modified with water, ethanol, glycerin, 1-hexanoic acid, respectively, 1 ppm, 5 ppm, 50 ppm, An aqueous solution deodorant composition (samples 1-1 to 4-6) dissolved in distilled water at a concentration of 100 ppm, 500 ppm and 1,000 ppm was prepared and analyzed for deodorization performance.

Example 2

A master batch was prepared by using a LDPE, PP, and PET material containing 5% of the deodorizing boron nanoparticles prepared in Preparation Example 2 (Preparation Examples 2-1 to 4) through a biaxial processing machine, Compounded to prepare deodorizing polymer chips containing PE, PP, PET materials at concentrations of 1ppm, 5ppm, 50ppm, 100ppm, 500ppm and 1,000ppm, respectively, and produced short fibers ((Samples 5-1 to 7-6) to deodorize Performance was analyzed.

division Concentration Units ppm (mg / Kg) Comparative example One 5 50 100 500 1000 Sample 1
(1-1 ~ 1-6) 2 12 80 99 99 99 <1 Sample 2
(2-1 ~ 2-6) 3 11 75 99 99 99 <1 Sample 3
(3-1 ~ 3-6) 3 10 78 99 99 99 <1 Sample 4
(4-1 ~ 4-6) 3 9 85 99 99 99 <1 Sample 5
(5-1 to 5-6) 2 13 80 99 99 99 <1 Sample 6
(6-1 ~ 6-6) 3 11 87 99 99 99 <1 Sample 7
(7-1 ~ 7-6)
5 15 94 99 99 99 <1

division Concentration Units ppm (mg / Kg) Comparative example One 5 50 100 500 1000 Sample 1
(1-1 ~ 1-6) 3 10 85 99 99 99 <1 Sample 2
(2-1 ~ 2-6) 2 15 75 99 99 99 <1 Sample 3
(3-1 ~ 3-6) 3 13 73 99 99 99 <1 Sample 4
(4-1 ~ 4-6) 3 15 82 99 99 99 <1 Sample 5
(5-1 to 5-6) 3 13 85 99 99 99 <1 Sample 6
(6-1 ~ 6-6) 2 15 80 99 99 99 <1 Sample 7
(7-1 ~ 7-6)
4 15 90 99 99 99 <1

Table 2 and Table 3 are the deodorization rate analysis results for ammonia and acetic acid, respectively.

"X" described in "Division" in Table 2 and Table 3 specifies nanoparticles prepared according to Preparation Example x.

Experimental Example

A glass evaporation tube into which a malodorous gas such as ammonia, hydrogen sulfide, or acetic acid was injected was placed under the desiccator, and the test pieces (2 g) each of which the deodorizing compositions of Examples 1 and 2 were applied on the plates of the passages connected thereto were not applied. After placing the test piece (Comparative Preparation Example 2g), the desiccator was sealed and left for 2 hours at 25 ° C. .

<Equation 1>

Odor concentration reduction rate (%) = 1- residual odor concentration (ppm) / odor concentration before reduction (ppm) * 100

The above description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention can be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be.

Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the invention is indicated by the following claims, and it should be construed that all changes or modifications derived from the meaning and scope of the claims and their equivalents are included in the scope of the invention.

Claims (6)

Deodorizing composition comprising a deodorizing boron nanoparticles.
The method of claim 1,
The particle size of the nanoparticles is 5 ~ 400nm deodorant composition.
The method of claim 1,
Deodorizing composition is the content of the nanoparticles in the deodorizing composition 5 ~ 50,000ppm. The method of claim 1,
The deodorizing composition further comprises a binder resin.
The method of claim 4, wherein
The binder resin is made of low density polyethylene, high density polyethylene, polypropylene, polystyrene, polyamide, polyester, polyvinyl alcohol, ethylene-propylene copolymer, polyurethane, polyurea, silicone resin, epoxy resin and one or more of these polymers. Deodorant composition selected from the group.
The method of claim 1,
The nanoparticles are deodorant composition that is surface-modified by one selected from the group consisting of alkoxy group, hydroxyl group, carboxyl group and one or more combinations thereof.