KR20180127035A - Hydrophobic aluminium hydroxide and method of manufacturing the same - Google Patents

Hydrophobic aluminium hydroxide and method of manufacturing the same Download PDF

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KR20180127035A
KR20180127035A KR1020170062330A KR20170062330A KR20180127035A KR 20180127035 A KR20180127035 A KR 20180127035A KR 1020170062330 A KR1020170062330 A KR 1020170062330A KR 20170062330 A KR20170062330 A KR 20170062330A KR 20180127035 A KR20180127035 A KR 20180127035A
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aluminum hydroxide
alkane
hydrophobic
decane
solution
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KR102186700B1 (en
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이성영
예성훈
박환석
남해림
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(주)엘지하우시스
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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/021—After-treatment of oxides or hydroxides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00—Use of pretreated ingredients
    • C08K9/04—Ingredients treated with organic substances
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/40—Compounds of aluminium
    • C09C1/407—Aluminium oxides or hydroxides
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/08—Treatment with low-molecular-weight non-polymer organic compounds
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/90—Other properties not specified above

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  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

Hydrophobic aluminum hydroxide and a method for manufacturing the same are disclosed. The hydrophobic aluminum hydroxide according to the present invention has decane adsorbed on the surface of aluminum hydroxide particles, wherein the hydrophobic aluminum hydroxide is manufactured by a method comprising the steps of: (a) introducing aluminum hydroxide particles into a decane solution comprising decane and a solvent; (b) allowing the decane to adsorb to the aluminum hydroxide particles through agitation; and (c) removing the solvent and drying the same. According to the method for manufacturing hydrophobic aluminum hydroxide according to the present invention, the surface of aluminum hydroxide can be modified to be hydrophobic.

Description

소수성 수산화알루미늄 및 그 제조 방법 {HYDROPHOBIC ALUMINIUM HYDROXIDE AND METHOD OF MANUFACTURING THE SAME}HYDROPHOBIC ALUMINUM HYDROXIDE AND METHOD OF MANUFACTURING THE SAME [0002]

본 발명은 인조대리석 등에서 주로 무기 충전제로 사용되고 있는 수산화알루미늄에 관한 것으로, 보다 상세하게는 인조대리석 첨가량을 증가시킬 수 있는 수산화알루미늄 및 그 제조 방법에 관한 것이다.
The present invention relates to aluminum hydroxide which is mainly used as an inorganic filler in artificial marble and the like, and more particularly to an aluminum hydroxide capable of increasing the amount of artificial marble to be added and a method for producing the same.

수산화알루미늄은 인조대리석, 타일, 벽지 등 다양한 제품의 무기 충전제로 포함되어, 난연제로서의 역할을 한다. Aluminum hydroxide is included as an inorganic filler in various products such as artificial marble, tile, and wallpaper, and serves as a flame retardant.

그러나, 알루미늄과 3개의 수산기(-OH)로 이루어지는 수산화알루미늄이 고분자 용액에 첨가되면 용액의 점도가 크게 증가하게 된다. 이는 수산기의 강한 수소 결합에 기인한다. 이러한 용액의 점도 상승은 공정 제약으로 이어지기 때문에, 현실적으로는 일정량 이상의 수산화알루미늄 첨가가 어렵다. However, when aluminum hydroxide and aluminum hydroxide consisting of three hydroxyl groups (-OH) are added to the polymer solution, the viscosity of the solution is greatly increased. This is due to the strong hydrogen bonding of the hydroxyl group. Since the increase in the viscosity of such a solution leads to process restrictions, it is practically difficult to add a certain amount of aluminum hydroxide.

따라서, 고분자 용액에 수산화알루미늄을 충분히 첨가하기 위해, 수산화알루미늄의 표면을 개질할 필요성이 있다.
Therefore, in order to sufficiently add aluminum hydroxide to the polymer solution, it is necessary to modify the surface of the aluminum hydroxide.

특허문헌 1에는 수지 충전시의 점도저감과 고충전이 가능한 수산화알루미늄 분체를 개시한다. 상기 문헌에는 다양한 범위의 입자지름을 갖는 수산화알루미늄 분체들을 배합하여 수지 충전시 점도 저감 효과를 발휘하고 있다. Patent Document 1 discloses an aluminum hydroxide powder capable of viscosity reduction and high filling at the time of filling a resin. In this document, aluminum hydroxide powders having a wide range of particle sizes are blended to exhibit viscosity reducing effect when filling the resin.

그러나, 상기 특허문헌1의 경우 수산화알루미늄 표면 물성은 그대로 유지되고 있는 바 수지 충전시 점도 저감 효과가 충분치 않다.
However, in the case of Patent Document 1, the physical properties of the surface of aluminum hydroxide are maintained, and the effect of reducing the viscosity upon charging the resin is not sufficient.

특허문헌 1 : 대한민국 공개특허공보 제10-2002-0007227호 (2002.01.26. 공개)Patent Document 1: Korean Published Patent Application No. 10-2002-0007227 (published on Jan. 26, 2002)

본 발명은 수산화알루미늄의 표면을 소수성으로 개질함으로써, 고분자 용액에 수산화알루미늄 투입시 점도 증가 현상을 최대한 억제하여, 고분자 용액에 투입되는 수산화알루미늄의 양을 증대시킬 수 있는 수산화알루미늄 및 그 제조 방법을 제공하는 것이다.
The present invention provides aluminum hydroxide capable of increasing the amount of aluminum hydroxide added to a polymer solution by minimizing the viscosity increase phenomenon when aluminum hydroxide is added to a polymer solution by modifying the surface of aluminum hydroxide to be hydrophobic .

상기 목적을 달성하기 위한 본 발명의 실시예에 따른 소수성 수산화알루미늄 제조 방법은 (a) 수산화알루미늄 입자를, 액상의 알칸과 용매를 포함하는 알칸 용액에 투입하는 단계; (b) 교반을 통해 상기 알칸이 수산화알루미늄 입자에 흡착되도록 하는 단계; 및 (c) 용매를 제거한 후, 건조하는 단계;를 포함하는 것을 특징으로 한다. According to an aspect of the present invention, there is provided a method for manufacturing a hydrophobic aluminum hydroxide, comprising: (a) introducing aluminum hydroxide particles into an alkane solution containing a liquid alkane and a solvent; (b) allowing the alkane to adsorb to the aluminum hydroxide particles through agitation; And (c) removing the solvent, followed by drying.

이때, 상기 알칸은 탄소수 6~16의 알칸일 수 있으며, 데칸인 것이 보다 바람직하다. At this time, the alkane may be an alkane having 6 to 16 carbon atoms, more preferably decane.

또한, 상기 알칸 용액에서, 알칸의 함량이 부피%로, 0.1%~ 10%인 것이 바람직하다. In the alkane solution, the content of the alkane is preferably 0.1% to 10% by volume.

또한, 상기 (b) 단계는 고속 혼합기에서 수행될 수 있다. 이때, 상기 고속 혼합기의 회전 속도는 500RPM 이상인 것이 바람직하다. Also, the step (b) may be performed in a high-speed mixer. At this time, the rotation speed of the high-speed mixer is preferably 500 RPM or more.

상기 (b) 단계를 통해 알칸이 수산화알루미늄 입자에 흡착되도록 함으로서, 제조되는 수산화알루미늄 표면에는 알칸이 흡착되어 있다. 수산화알루미늄 표면에 알칸이 흡착되어 있음으로써, 수산화알루미늄 표면에 노출되는 수산기의 수를 감소시킬 수 있다. 이를 통하여 제조된 소수성 수산화알루미늄을 고분자 용액에 투입시, 고분자와 수산화알루미늄 간의 수소결합 수를 줄일 수 있어, 점도 증가 정도를 낮출 수 있다.
By causing the alkane to be adsorbed on the aluminum hydroxide particles through the step (b), the alkane is adsorbed on the aluminum hydroxide surface to be produced. Since the alkane is adsorbed on the surface of aluminum hydroxide, the number of hydroxyl groups exposed on the surface of aluminum hydroxide can be reduced. When the hydrophobic aluminum hydroxide thus prepared is added to the polymer solution, the number of hydrogen bonds between the polymer and aluminum hydroxide can be reduced, and the viscosity increase degree can be lowered.

상기 목적을 달성하기 위한 본 발명의 실시예에 따른 소수성 수산화수산화 알루미늄은 수산화알루미늄 입자로서, 표면에 액상의 알칸이 흡착되어 있는 것을 특징으로 한다. To achieve the above object, a hydrophobic aluminum hydroxide hydroxide according to an embodiment of the present invention is characterized in that a liquid alkane is adsorbed on a surface of the aluminum hydroxide particle.

이때, 상기 알칸은 탄소수 6~16의 알칸일 수 있으며, 상기 알칸은 데칸인 것이 보다 바람직하다. At this time, the alkane may be an alkane having 6 to 16 carbon atoms, and the alkane is more preferably decane.

본 발명에 따른 소수성 수산화알루미늄 제조 방법에 의하면, 수산화알루미늄의 표면을 소수성으로 개질할 수 있다. 소수성으로 개질된 수산화알루미늄을 고분자 용액에 첨가할 경우, 소수성으로 개질 처리되지 않은 동일한 양의 수산화알루미늄을 고분자 용액에 첨가할 때보다 낮은 점도를 나타낼 수 있다. 이를 통해 인조대리석 등 고분자 용액으로부터 제조되는 제품에 에 첨가되는 수산화알루미늄의 양을 증대시킬 수 있다.
According to the method for producing hydrophobic aluminum hydroxide according to the present invention, the surface of aluminum hydroxide can be modified to be hydrophobic. When the hydrophobically modified aluminum hydroxide is added to the polymer solution, it is possible to exhibit lower viscosity than when the same amount of aluminum hydroxide not modified by hydrophobicity is added to the polymer solution. As a result, the amount of aluminum hydroxide added to a product made from a polymer solution such as artificial marble can be increased.

도 1은 본 발명에 따른 소수성 수산화알루미늄 제조 방법을 개략적으로 나타낸 것이다.
도 2는 수산화알루미늄 입자에 알칸이 흡착되는 과정을 개략적으로 나타낸 것이다.
Fig. 1 schematically shows a method for producing hydrophobic aluminum hydroxide according to the present invention.
2 schematically shows a process in which an alkane is adsorbed on aluminum hydroxide particles.

본 발명의 이점 및 특징, 그리고 그것들을 달성하는 방법은 상세하게 후술되어 있는 실시예들을 참조하면 명확해질 것이다. 그러나, 본 발명은 이하에서 개시되는 실시예들에 한정되는 것이 아니라 서로 다른 다양한 형태로 구현될 것이며, 단지 본 실시예들은 본 발명의 개시가 완전하도록 하며, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 발명의 범주를 완전하게 알려주기 위해 제공되는 것이며, 본 발명은 청구항의 범주에 의해 정의될 뿐이다. Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described in detail below. It should be understood, however, that the invention is not limited to the disclosed embodiments, but is capable of many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

이하, 본 발명에 따른 소수성 수산화알루미늄 및 그 제조 방법에 관하여 상세히 설명하기로 한다.
Hereinafter, the hydrophobic aluminum hydroxide according to the present invention and a method for producing the same will be described in detail.

도 1은 본 발명에 따른 소수성 수산화알루미늄 제조 방법을 개략적으로 나타낸 것이다. 또한, 도 2는 수산화알루미늄 입자에 알칸이 흡착되는 과정을 개략적으로 나타낸 것이다.Fig. 1 schematically shows a method for producing hydrophobic aluminum hydroxide according to the present invention. 2 schematically shows a process in which an alkane is adsorbed on an aluminum hydroxide particle.

도 1을 참조하면, 본 발명에 따른 소수성 수산화알루미늄 제조 방법은 알칸 용액에 수산화알루미늄 투입 단계(S110), 수산화알루미늄 표면에 알칸 흡착 단계(S120) 및 용매 제거 및 건조 단계(S130)를 포함한다.
Referring to FIG. 1, a method for producing a hydrophobic aluminum hydroxide according to the present invention includes a step (S110) of adding aluminum hydroxide to an alkane solution, an alkane adsorption step (S120) on an aluminum hydroxide surface, and a solvent removing and drying step (S130).

우선, 알칸 용액에 수산화알루미늄 투입 단계(S110)에서는 수산화알루미늄 입자(210)를, 알칸(220)과 용매를 포함하는 알칸 용액에 투입한다. 알칸 용액은 후술하는 알칸 흡착 반응이 수행되는 고속 혼합기에 저장되어 있다. First, in the step of injecting aluminum hydroxide into the alkane solution (S110), the aluminum hydroxide particles 210 are introduced into the alkane solution containing the alkane (220) and the solvent. The alkane solution is stored in a high-speed mixer in which the alkane adsorption reaction described below is carried out.

상기 액상의 알칸은 탄소수 6~16의 알칸인 것이 바람직하다. 이러한 알칸으로는 상온에서 액상인 노난(C9H20), 데칸(C10H22), 운데칸 (C11H24), 도데칸 (C12H26), 트리데칸(C13H28), 테트라데칸(C14H30), 펜타데칸(C15H32), 헥사데칸(C16H34)이 될 수 있다. 이들 알칸들 중 원재료의 가격 및 공정 조건상의 안정성(상온에서의 점도 변화) 등을 고려하면 탄소수 10의 데칸이 가장 바람직하다. 다만, 헵타데칸(C17H36) 또는 그보다 탄소수가 더 큰 알칸들의 경우, 상온에서 고체일수 있으며, 상온에서 수산화알루미늄 입자의 응집 등을 유발할 수 있다. The liquid alkane is preferably an alkane having 6 to 16 carbon atoms. These alkanes are liquefied nonane at room temperature (C 9 H 20), decane (C 10 H 22), undecane (C 11 H 24), dodecane (C 12 H 26), tridecane (C 13 H 28) , Tetradecane (C 14 H 30 ), pentadecane (C 15 H 32 ), and hexadecane (C 16 H 34 ). Among these alkanes, decane having a carbon number of 10 is most preferable considering the cost of the raw material and the stability in process conditions (viscosity change at room temperature). However, in the case of heptadecane (C 17 H 36 ) or an alkane having a carbon number larger than that, it may be solid at room temperature and cause agglomeration of aluminum hydroxide particles at room temperature.

알칸 용액에서, 알칸의 함량은 부피%로, 0.1%~ 10%인 것이 바람직하며, 0.5%~2%가 보다 바람직하다. 알칸 함량이 0.1% 이하인 경우, 수산화알루미늄 개질 효과가 불충분할 수 있으며, 10%를 초과하더라도 수산화알루미늄 개질 효과가 더 이상 발생하지 않는다. 물론, 액상의 알칸 원액을 스프레이로 분사한 후 사용하는 것도 가능하다. 다만, 후술하는 단계(S120)에서의 소요시간을 줄이고 혼합도를 증가시키기 위해서 용매에 녹여서 사용하는 것이 보다 바람직하다. In the alkane solution, the content of the alkane is preferably 0.1% to 10% by volume, more preferably 0.5% to 2% by volume. When the alkane content is 0.1% or less, the aluminum hydroxide reforming effect may be insufficient, and if it exceeds 10%, the aluminum hydroxide reforming effect no longer occurs. Of course, it is also possible to spray the liquid alkane stock solution after use. However, it is more preferable to use it by dissolving it in a solvent to reduce the time required in the step S120 to be described later and to increase the degree of mixing.

수산화알루미늄 입자(210)는 평균입경이 약 1 ~ 50㎛ 정도인 것이 이용될 수 있으나, 이에 제한되지 않고, 시판되는 어떠한 수산화알루미늄 입자도 이용될 수 있다.
The aluminum hydroxide particles 210 may have an average particle diameter of about 1 to 50 mu m, but not limited thereto, any commercially available aluminum hydroxide particles may be used.

다음으로, 수산화알루미늄 표면에 알칸 흡착 단계(S120)에서는 교반을 통해 알칸이 수산화알루미늄 입자에 흡착되도록 한다. Next, in the alkane adsorption step (S120) on the aluminum hydroxide surface, the alkane is adsorbed to the aluminum hydroxide particles through agitation.

이를 통해 도 2에 도시된 예와 같이, 수산화알루미늄 입자(210) 표면에 알칸(220)이 흡착된다. 2, the alkane 220 is adsorbed on the surface of the aluminum hydroxide particles 210. As shown in FIG.

상기의 알칸 흡착 반응은 고속 혼합기에서 수행될 수 있다. 본 발명에서 이용될 수 있는 고속 혼합기의 예로는 페이스트 믹서, 헨셀 믹서 등을 제시할 수 있다. 고속 혼합기의 회전 속도는 500RPM 이상인 것이 바람직하고, 보다 바람직하게는 800RPM 이상, 가장 바람직하게는 1000RPM 이상인 것이 바람직하다. 500RPM 미만의 회전 속도에서는 믹싱하는데 필요한 소요시간이 너무 길어지거나, 믹싱의 정도가 부족할 수 있다.
The above alkane adsorption reaction can be carried out in a high-speed mixer. Examples of the high-speed mixer that can be used in the present invention include a paste mixer, a Henschel mixer, and the like. The rotation speed of the high-speed mixer is preferably 500 RPM or higher, more preferably 800 RPM or higher, and most preferably 1000 RPM or higher. At rotational speeds below 500 RPM, the time required for mixing may be too long, or the degree of mixing may be insufficient.

알칸 흡착 온도는 알칸의 기화 온도 이하라면 특별히 제한되지 않으며, 약 25℃ 정도의 상온이 바람직하다. 예를 들어, 알칸이 기화 온도가 150℃ 정도인 데칸이라면, 데칸의 기화 온도 이하에서 모든 공정이 수행될 수 있다.The alkane adsorption temperature is not particularly limited as long as it is lower than the vaporization temperature of the alkane, and the room temperature of about 25 캜 is preferable. For example, if the alkane is decane having a vaporization temperature of about 150 ° C, then all processes can be performed below the vaporization temperature of the decane.

이 과정을 통해, 수산화알루미늄 입자(210) 표면에 노출되는 수산기(-OH)의 수가 감소되어, 알칸이 흡착되지 않은 수산화알루미늄 입자에 비하여 소수화된다. 따라서, 알칸이 흡착된 수산화알루미늄 입자를 예를 들어 메틸메타크릴레이트(methylmetacrylate; MMA) 용액에 투입하였을 때 점도 증가 정도를 낮출 수 있다. 그 결과, 더 많은 양의 수산화알루미늄 입자의 첨가가 가능해질 수 있다.
Through this process, the number of hydroxyl groups (-OH) exposed on the surface of the aluminum hydroxide particles 210 is reduced, so that the alkane is less hydrophobic than the aluminum hydroxide particles not adsorbed. Therefore, when the alkaline-adsorbed aluminum hydroxide particles are introduced into, for example, methyl methacrylate (MMA) solution, the viscosity increase degree can be lowered. As a result, the addition of a larger amount of aluminum hydroxide particles can be made possible.

이후, 용매 제거 및 건조 단계(S130)에서는 알칸이 흡착된 수산화알루미늄을 포함하는 용액에서 용매를 제거한 후, 알칸 휘발 온도 이하에서 자연 건조 혹은 오븐 등에서 건조를 수행하여, 최종 알칸이 흡착된 수산화알루미늄을 수득한다. 건조 온도는 알칸의 종류에 따라 다르지만, 데칸을 기준으로 하면, 80℃~150℃에서 진행하는 것이 바람직하다. 150℃를 초과하는 온도에서는 데칸이 휘발될 수 있기 때문이다.
Thereafter, in the step of removing and drying the solvent (S130), the solvent is removed from the solution containing the aluminum hydroxide adsorbed on the alkane, and then dried naturally at a temperature lower than the alkane volatilization temperature or dried in an oven, . The drying temperature varies depending on the kind of alkane, but it is preferable to proceed at 80 to 150 DEG C on the basis of decane. This is because decane can be volatilized at temperatures exceeding 150 ° C.

실시예Example

이하, 본 발명의 바람직한 실시예를 통해 본 발명의 구성 및 작용을 더욱 상세히 설명하기로 한다. 다만, 이는 본 발명의 바람직한 예시로 제시된 것이며 어떠한 의미로도 이에 의해 본 발명이 제한되는 것으로 해석될 수는 없다. Hereinafter, the configuration and operation of the present invention will be described in more detail with reference to preferred embodiments of the present invention. It is to be understood, however, that the same is by way of illustration and example only and is not to be construed in a limiting sense.

여기에 기재되지 않은 내용은 이 기술 분야에서 숙련된 자이면 충분히 기술적으로 유추할 수 있는 것이므로 그 설명을 생략하기로 한다.
The contents not described here are sufficiently technically inferior to those skilled in the art, and a description thereof will be omitted.

1. 시편의 준비 1. Preparation of specimens

(1) 수산화알루미늄 시편 1 (1) aluminum hydroxide specimen 1

페이스트 믹서(PM-500D, 일신오토클레이브제)에 데칸용액(용매n-hexane, 데칸농도 : 10%,) 10g을 투입한 후, 수산화알루미늄 분말(평균 입경 20㎛) 90g을 첨가하였다.10 g of decane solution (solvent n-hexane, decane concentration: 10%) was added to a paste mixer (PM-500D, manufactured by Ilshin Autoclave), and then 90 g of aluminum hydroxide powder (average particle diameter 20 μm) was added.

이후, 페이스트 믹서에서 교반을 통하여, 수산화알루미늄 표면에 데칸이 흡착되도록 하였다. Thereafter, decane was adsorbed on the aluminum hydroxide surface by stirring in a paste mixer.

이후, 120℃ 오븐에서 30분간 건조하여 용액에서 용매를 제거한 후, 1일 동안 자연건조 하여, 수산화알루미늄 시편 1을 제조하였다.
Thereafter, the resultant was dried in an oven at 120 ° C. for 30 minutes to remove the solvent from the solution, and then dried naturally for 1 day to prepare aluminum hydroxide specimen 1.

(2) 수산화알루미늄 시편 2(2) aluminum hydroxide specimen 2

수산화알루미늄 시편 2는 상기 수산화알루미늄 시편 1을 제조하기 위한 처리를 거치지 않은, 일반 수산화알루미늄 분말(평균 입경 20㎛)이다.
The aluminum hydroxide specimen 2 is an ordinary aluminum hydroxide powder (average particle diameter 20 μm) not subjected to the treatment for producing the aluminum hydroxide specimen 1.

2. 물성(점도) 평가 2. Evaluation of physical properties (viscosity)

물성을 평가하기 위해, 시편 1 및 시편 2에 따른 수산화알루미늄 입자를 PMMA시럽(MMA용액에 분자량 10만인 PMMA수지를 중량비 50%로 녹인 상태)첨가하고, 10분간 교반한 후, Brookfield 점도 측정기(DV1)로 점도를 측정하였다. To evaluate the physical properties, aluminum hydroxide particles according to Specimen 1 and Specimen 2 were added to a PMMA syringe (PMMA resin having a molecular weight of 100,000 in a MMA solution in a weight ratio of 50% dissolved therein) and stirred for 10 minutes. ).

점도 측정 결과를 표 1에 나타내었다.The viscosity measurement results are shown in Table 1.

[표 1][Table 1]

Figure pat00001
Figure pat00001

표 1의 실시예 1과 비교예를 참조하면, 시편 1에 따른 수산화알루미늄과 시편 2에 따른 수산화알루미늄의 첨가량이 동일한데, 시편 1에 따른 수산화알루미늄을 첨가한 경우, 용액의 점도가 상대적으로 낮은 것을 볼 수 있다. 이는 실시예 1의 경우, 수산화알루미늄 표면에 데칸이 흡착된 시편 1을 이용함으로써, 수산화알루미늄 표면에 흡착된 데칸이 MMA와 수산화알루미늄 간의 수소 결합을 다소 억제한 결과라 볼 수 있다.Referring to Example 1 and Comparative Example in Table 1, the addition amounts of aluminum hydroxide according to Specimen 1 and aluminum hydroxide according to Specimen 2 are the same. When aluminum hydroxide according to Specimen 1 is added, the viscosity of the solution is relatively low Can be seen. This is because, in the case of Example 1, decane adsorbed on the surface of aluminum hydroxide suppresses hydrogen bonding between MMA and aluminum hydroxide to some extent by using specimen 1 on which decane is adsorbed on the surface of aluminum hydroxide.

또한, 실시예 2와 비교예를 참조하면, 시편 1에 따른 수산화알루미늄이 시편 2에 따른 수산화알루미늄의 첨가량보다 더 큼에도 불구하고, 동일한 점도를 나타내었다. 이 결과로부터, 시편 1에 따른 수산화알루미늄을 이용할 경우, 수산화알루미늄의 첨가량을 증대시킬 수 있다는 것을 알 수 있다. Also, referring to Example 2 and Comparative Example, the same viscosity was exhibited even though aluminum hydroxide according to Specimen 1 was larger than the amount of aluminum hydroxide added according to Specimen 2. From these results, it can be seen that the addition amount of aluminum hydroxide can be increased when aluminum hydroxide according to Specimen 1 is used.

이로부터 인조대리석과 같은 수산화알루미늄이 무기충전제로 첨가되는 제품에 있어서, 수산화알루미늄의 첨가량을 증대시킬 수 있어, 난연 특성이 향상될 수 있다.
From this, in a product in which aluminum hydroxide such as artificial marble is added as an inorganic filler, the addition amount of aluminum hydroxide can be increased, and the flame retardancy characteristic can be improved.

이상에서는 본 발명의 실시예를 중심으로 설명하였으나, 이는 예시적인 것에 불과하며, 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 기술자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다. 따라서, 본 발명의 진정한 기술적 보호범위는 이하에 기재되는 특허청구범위에 의해서 판단되어야 할 것이다.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. . Accordingly, the true scope of the present invention should be determined by the following claims.

210 : 수산화알루미늄 입자
220 : 알칸210: Aluminum hydroxide particles
220: Alkan

Claims (9)

(a) 수산화알루미늄 입자를, 액상의 알칸과 용매를 포함하는 알칸 용액에 투입하는 단계;
(b) 교반을 통해 알칸이 수산화알루미늄 입자에 흡착되도록 하는 단계; 및
(c) 용매를 제거한 후, 건조하는 단계;를 포함하는 것을 특징으로 하는 소수성 수산화알루미늄 제조 방법.
(a) injecting aluminum hydroxide particles into an alkane solution containing a liquid alkane and a solvent;
(b) allowing the alkane to adsorb to the aluminum hydroxide particles through agitation; And
(c) removing the solvent and then drying the hydrophobic aluminum hydroxide.
제1항에 있어서,
상기 알칸은 탄소수 6~16의 알칸인 것을 특징으로 하는 소수성 수산화알루미늄 제조 방법.
The method according to claim 1,
Wherein the alkane is an alkane having 6 to 16 carbon atoms.
제2항에 있어서,
상기 알칸은 데칸인 것을 특징으로 하는 소수성 수산화알루미늄 제조 방법.
3. The method of claim 2,
Wherein the alkane is decane.
제1항에 있어서,
상기 알칸 용액에서, 알칸의 함량이 부피%로, 0.1%~ 10%인 것을 특징으로 하는 소수성 수산화알루미늄 제조 방법.
The method according to claim 1,
Wherein the content of the alkane in the alkane solution is 0.1% to 10% by volume.
제1항에 있어서,
상기 (b) 단계는 고속 혼합기에서 수행되는 것을 특징으로 하는 소수성 수산화알루미늄 제조 방법.
The method according to claim 1,
Wherein the step (b) is performed in a high-speed mixer.
제5항에 있어서,
상기 고속 혼합기의 회전 속도는 500RPM 이상인 것을 특징으로 하는 소수성 수산화알루미늄 제조 방법.
6. The method of claim 5,
Wherein the rotating speed of the high-speed mixer is 500 RPM or more.
수산화 알루미늄 입자로서,
표면에 액상의 알칸이 흡착되어 있는 것을 특징으로 하는, 소수성 수산화알루미늄.
As aluminum hydroxide particles,
Characterized in that a liquid alkane is adsorbed on the surface thereof.
제7항에 있어서,
상기 알칸은 탄소수 6~16의 알칸인 것을 특징으로 하는 소수성 수산화알루미늄.
8. The method of claim 7,
Wherein the alkane is an alkane having 6 to 16 carbon atoms.
제8항에 있어서,
상기 알칸은 데칸인 것을 특징으로 하는 소수성 수산화알루미늄.

9. The method of claim 8,
Wherein the alkane is decane.

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5286293A (en) * 1991-07-09 1994-02-15 Jianxin Waterproof Powder Factory Of Chonging County Multifunctional powder material for protecting buildings and process for the same
KR20020007227A (en) 2000-07-17 2002-01-26 오하시 미츠오 Fine particle of aluminium hydroxide for filling resin and resin composition using the same
JP4017896B2 (en) * 2002-03-15 2007-12-05 Ｎｔｎ株式会社 Optical disk pickup device and objective lens protection member thereof
KR20130008261A (en) * 2011-07-12 2013-01-22 케이씨 주식회사 Organized ultra-fine aluminum hydroxide and preparation method thereof
KR20140027510A (en) * 2011-07-11 2014-03-06 옴야 인터내셔널 아게 Hydrophobised calcium carbonate particles

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5286293A (en) * 1991-07-09 1994-02-15 Jianxin Waterproof Powder Factory Of Chonging County Multifunctional powder material for protecting buildings and process for the same
KR20020007227A (en) 2000-07-17 2002-01-26 오하시 미츠오 Fine particle of aluminium hydroxide for filling resin and resin composition using the same
JP4017896B2 (en) * 2002-03-15 2007-12-05 Ｎｔｎ株式会社 Optical disk pickup device and objective lens protection member thereof
KR20140027510A (en) * 2011-07-11 2014-03-06 옴야 인터내셔널 아게 Hydrophobised calcium carbonate particles
KR20130008261A (en) * 2011-07-12 2013-01-22 케이씨 주식회사 Organized ultra-fine aluminum hydroxide and preparation method thereof

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