KR101543958B1 - Method for manufacturing insulating material with expanded perlite - Google Patents
Method for manufacturing insulating material with expanded perlite Download PDFInfo
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- KR101543958B1 KR101543958B1 KR1020140040479A KR20140040479A KR101543958B1 KR 101543958 B1 KR101543958 B1 KR 101543958B1 KR 1020140040479 A KR1020140040479 A KR 1020140040479A KR 20140040479 A KR20140040479 A KR 20140040479A KR 101543958 B1 KR101543958 B1 KR 101543958B1
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/628—Coating the powders or the macroscopic reinforcing agents
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/04—Arrangements using dry fillers, e.g. using slag wool which is added to the object to be insulated by pouring, spreading, spraying or the like
Abstract
Description
본 발명은 펄라이트가 포함된 단열재에 관한 것으로, 특히 바인더와의 혼합 및 성형 과정에서 펄라이트의 입자 및 내부 기공이 파괴되는 현상을 방지하도록 된 팽창 펄라이트가 함유된 단열재의 제조방법에 관한 것이다.
The present invention relates to a heat insulating material containing pearlite. More particularly, the present invention relates to a method of manufacturing an insulating material containing expanded pearlite, which is prevented from destruction of pearlite particles and internal pores during mixing and molding with a binder.
일반적으로 펄라이트(perlite)는 진주암, 흑요석, 경석 등으로 이루어진 군으로부터 선택된 광물을 미세하게 분쇄한 후 높은 열(900 ~ 1200℃)로 가열하면, 함유된 휘발성분이 가스화하여 연화된 입자의 내부에서 팽창하여 내부기공이 형성되며, 펄라이트는 본래 부피의 약 10~20배 정도로 팽창하게 된다. 이러한 팽창은 펄라이트 원료(the crude perlite rock)에 포함된 펄라이트의 휘발성분 때문이다.Generally, perlite is produced by finely pulverizing minerals selected from the group consisting of perlite, obsidian, pumice and the like and then heating the mixture to high heat (900 to 1200 ° C), the volatile components contained therein are gasified and expanded in the softened particles And pearlite is originally expanded to about 10 to 20 times its volume. This expansion is due to the volatiles of pearlite contained in the crude perlite rock.
또, 펄라이트는 유문암질 암석의 일종으로, 진주광택을 가진 연회색에서 암회색, 갈색, 녹색, 검은색을 띔으로 진주암이라고도 한다. 이 펄라이트는 암석의 조직에 따라 다르지만 870~1,100℃ 정도에서 결합수가 증발하면서 생기는 증발압력이 각각의 과립입자를 원형의 유리질입자로 약 10배에서 20배 정도 팽창하여 상업적으로 사용된다. 이렇게 팽창된 펄라이트는 저밀도에 다공질이고, 흡수능력이 좋으며, 경량성, 단열성, 보온성, 흡음성, 무독성 및 불연성 등의 성질을 가지고 있어 내열재료, 방음재료, 경량골재 및 단열재료 등으로 널리 이용되고 있다.Pearlite is a type of rhyolitic rock, which is also called paleolithic with dark gray color with pearly luster, dark gray, brown, green and black. Although the pearlite varies depending on the texture of the rock, the evaporation pressure generated by evaporation of the binding water at about 870 to 1,100 ° C is used commercially by expanding each granular particle to about 10 to 20 times as circular glassy particles. The expanded pearlite is widely used as a heat-resistant material, a soundproofing material, a lightweight aggregate, and a heat insulating material because it has a low density, is porous, has a good absorbing ability, and has properties such as light weight, heat insulation, warmth, sound absorption, non-toxicity and incombustibility .
이러한 팽창 펄라이트를 함유한 단열재의 경우, 일 예로 도 1에서와 같은 공정으로 제조하였다. 이를 간략히 살펴보면, 먼저 팽창 펄라이트와 바인더를 준비(S10)하고, 이들 팽창 펄라이트와 바인더를 혼합(S11)한 다음, 일정 형태로 성형(S12)하며, 이를 열처리(S13)한 다음, 사용 장소에 따라 절단 등의 가공(S14)으로 단열재를 완성하였다. In the case of a heat insulating material containing such expanding pearlite, for example, a process as shown in Fig. 1 was used. First, the expanded pearlite and the binder are prepared (S10), and the expanded pearlite and the binder are mixed (S11) and then molded into a predetermined shape (S12), followed by heat treatment (S13) The heat insulating material is completed by cutting (S14).
하지만, 팽창 펄라이트와 바인더를 혼합하여 성형하는 공정에서 팽창 펄라이트의 입자가 파괴되면서 내부 기공이 폐색(閉塞)되었고, 이로 인해 비중과 열전도율이 높아졌다. 또한, 바인더의 특성상 수분과 접촉되면 단열재의 내수성이 낮아지면서 강도가 저하되는 문제점이 있었다.
However, in the process of mixing the expanded pearlite and the binder, the particles of the expanded pearlite are broken and the internal pores are occluded, thereby increasing the specific gravity and the thermal conductivity. In addition, due to the characteristics of the binder, the water resistance of the heat insulating material is lowered when the material is in contact with moisture, thereby lowering the strength.
상기된 문제점을 해소하기 위해 개발된 본 발명은, 팽창 펄라이트에 유무기 복합바인더를 코팅하여 열풍 건조시킨 후 열간 가공으로 성형함으로써, 팽창 펄라이트와 바인더의 혼합 공정이 배제되고, 이 혼합공정에서 발생하는 팽창 펄라이트의 입자 파괴 및 기공 폐색 등의 현상이 미연에 방지되도록 한 팽창 펄라이트가 함유된 단열재의 제조방법을 제공함에 목적이 있다.
The present invention developed for solving the above problems is characterized in that an inorganic composite binder is coated on an expanded pearlite and then hot air dried and then hot working is performed to exclude the mixing step of the expanded pearlite and the binder, It is an object of the present invention to provide a method for manufacturing a heat insulating material containing expanded pearlite which prevents the phenomenon such as particle breakage and pore clogging of expanded pearlite.
상기된 목적을 달성하기 위해 본 발명에 따른 팽창 펄라이트가 함유된 단열재를 제조하는 방법에 있어서, 팽창 펄라이트를 분쇄하여 준비하는 제20단계(S20); 팽창 펄라이트에 유무기 복합바인더를 분무하여 코팅하는 제21단계(S21); 코팅된 팽창 펄라이트를 열풍으로 건조하는 제22단계(S22); 건조된 팽창 펄라이트를 고온에서 성형하는 제23단계(S23); 완성품의 형태와 크기로 가공하는 제24단계(S24);를 포함하는 것을 특징으로 한다. In order to achieve the above-mentioned object, there is provided a method for manufacturing a heat insulating material containing expanded pearlite according to the present invention, comprising the following steps 20 and 20: pulverizing and preparing expanded pearlite; A twenty-first step (S21) of spraying and coating the inorganic binder with the expanded pearlite; Twenty-second step (S22) of drying the coated expanded pearlite with hot air; Step 23 (S23) of molding the dried expanded pearlite at a high temperature; And a twenty-fourth step (S24) of processing the shape and size of the finished product.
이때, 유무기 복합바인더는 48~52중량%의 규산소다 3호, 46~50중량%의 아크릴계화합물와, 1~2중량%의 폴리아미드이미드화합물을 혼합하여 제조된 것을 특징으로 한다. In this case, the organic / inorganic hybrid binder is produced by mixing 48 to 52% by weight of sodium silicate 3, 46 to 50% by weight of an acrylic compound, and 1 to 2% by weight of a polyamideimide compound.
그리고, 제23단계(S23)에서는 스팀을 이용한 열간 가공으로 성형하는 것을 특징으로 한다.
In the twenty-third step (S23), hot working using steam is performed.
상술된 바와 같이 본 발명에 따르면, 팽창 펄라이트에 유무기 복합바인더를 코팅한 후 열풍으로 건조하고, 열간 가공으로 성형함으로써, 종래의 바인더와 팽창 펄라이트를 혼합한 후 성형하는 과정이 배제되고, 이 과정에서 발생하는 팽창 펄라이트 입자 및 내부기공이 파괴되고, 이로 인한 비중 및 열전도율이 상승하는 등의 현상이 미연에 방지되는 효과가 있다. As described above, according to the present invention, it is possible to exclude the process of mixing the conventional binder and the expanded pearlite and molding them by coating the expanded inorganic pearlite with the inorganic binder, drying it with hot air, and forming it by hot working, The expansion pearlite particles and the inner pores generated in the pores are destroyed and the specific gravity and the thermal conductivity are increased.
그리고, 단열재를 제작하는 공정 중에 복합바인더를 열풍으로 건조하고, 스팀 또는 열간으로 성형하여 바인더를 수분에 노출되지 않도록 함으로써, 수분에 노출시 발생하였던 단열재의 내수성 하락 및 강도 저하 현상이 미연에 방지되는 효과가 있다.
The composite binder is dried by hot air and formed into steam or hot air during the process of manufacturing the heat insulator so that the binder is not exposed to moisture, so that the water resistance of the heat insulator, which is caused by exposure to moisture, It is effective.
본 명세서에서 첨부되는 다음의 도면들은 본 발명의 바람직한 실시 예를 예시하는 것이며, 발명의 상세한 설명과 함께 본 발명의 기술사상을 더욱 이해시키는 역할을 하는 것이므로, 본 발명은 그러한 도면에 기재된 사항에만 한정되어 해석되어서는 안된다.
도 1은 종래의 팽창 펄라이트와 바인더를 혼합하여 단열재를 제조하는 공정이 도시된 순서도이다.
도 2는 본 발명에 따라 팽창 펄라이트에 유무기 혼합바인더를 코팅하여 단열재를 제조하는 공정이 도시된 순서도이다. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description, serve to further the understanding of the technical idea of the invention, It should not be interpreted.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flowchart showing a process for manufacturing a heat insulating material by mixing a conventional expanding pearlite and a binder. FIG.
FIG. 2 is a flowchart showing a process for manufacturing a heat insulating material by coating an organic binder mixed with an expanding pearlite according to the present invention.
이하에서는 첨부된 도면을 참조하여 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 본 발명을 쉽게 실시할 수 있도록 바람직한 실시 예를 상세하게 설명한다. 다만, 본 발명의 바람직한 실시 예에 대한 동작 원리를 상세하게 설명함에 있어 관련된 공지 기능 또는 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에는 그 상세한 설명을 생략한다.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the detailed description of known functions and configurations incorporated herein will be omitted when it may unnecessarily obscure the subject matter of the present invention.
<방법><Method>
도 2는 본 발명에 따라 팽창 펄라이트에 유무기 혼합바인더를 코팅하여 단열재를 제조하는 공정이 도시된 순서도이다. FIG. 2 is a flowchart showing a process for manufacturing a heat insulating material by coating an organic binder mixed with an expanding pearlite according to the present invention.
본 발명에 따른 팽창 펄라이트가 함유된 단열재의 제조방법은 도 2에 도시된 바와 같이, 먼저 팽창 펄라이트를 준비한다(S20). 펄라이트를 대략 900~1200℃ 정도의 고열로 가열하여 충분히 팽창시킨다. 팽창된 펄라이트는 대략 수 ㎛ 내지 수백 ㎛의 입자를 갖도록 분쇄된다. As shown in FIG. 2, a method for manufacturing a heat insulating material containing expanded pearlite according to the present invention comprises preparing expanded pearlite (S20). The pearlite is heated to a high temperature of approximately 900 to 1200 ° C to sufficiently expand it. The expanded pearlite is pulverized to have particles of approximately several mu m to several hundreds of mu m.
다음으로, 팽창 펄라이트에 유무기 복합바인더를 스프레이로 코팅한다(S21). 여기서 유무기 복합바인더는 액상으로, 규산소다와 아크릴계화합물과 폴리아미드이미디화합물을 혼합하여 제조한다. 보다 자세하게는, 유무기 복합바인더는 액상인 규산소다 3호를 48~52중량%, 아크릴계화합물을 46~50중량%와, 폴리아미드이미드화합물 1~2중량%를 혼합하여 제조한다. 일 예로, 50중량%의 규산소다 3호, 48~49중량%의 아크릴계화합물과, 1~2중량%의 폴리아미디이미디화합물을 혼합하여 제조한다. Next, the inorganic binder composite is coated on the expanded pearlite by spraying (S21). Here, the organic-inorganic hybrid binder is prepared by mixing sodium silicate, an acrylic compound, and a polyamideimide compound in a liquid phase. More specifically, the organic / inorganic composite binder is prepared by mixing 48 to 52% by weight of sodium silicate 3, 46 to 50% by weight of an acrylic compound, and 1 to 2% by weight of a polyamideimide compound. For example, 50 wt% of sodium silicate 3, 48 to 49 wt% of an acrylic compound, and 1 to 2 wt% of a polyamideimide compound are mixed.
이때, 규산소다 3호가 52중량%를 초과하는 경우 규산소다의 과다 함유로 내수성이 저하되고, 48중량% 미만인 경우 난연성이 저하된다. 또한, 아크릴계화합물이 50중량%를 초과하는 경우 아크릴계화합물의 과다 함유로 연소시 유독가스가 많이 배출되고, 46중량% 미만인 경우 내열성이 저하된다. 그리고, 폴리아미디이미디화합물이 2중량%를 초과하는 경우 각 혼합물들의 혼합이 불균일하여 각 구성요소들 간에 층이 분리되는 현상이 발생하고, 1중량% 미만인 경우 내수성이 저하된다. At this time, when the sodium silicate number 3 exceeds 52 wt%, the water resistance is lowered due to excessive sodium silicate, and when it is less than 48 wt%, the flame retardancy is lowered. When the content of the acrylic compound exceeds 50% by weight, toxic gas is discharged in a large amount due to excessive content of the acrylic compound, and when it is less than 46% by weight, the heat resistance is lowered. When the amount of the polyamideimide compound is more than 2% by weight, the mixing of the respective mixtures is uneven and the layers are separated from each other. When the amount of the polyamideimide compound is less than 1% by weight, the water resistance is lowered.
이렇게 제조된 유무기 복합바인더를 스프레이로 분무하여 분쇄된 팽창 펄라이트의 표면에 고루 코팅하고, 이때 코팅층의 두께는 대략 1mm~10mm 정도로 한다. The organic / inorganic hybrid binder thus prepared is sprayed with a spray and uniformly coated on the surface of the pulverized expanded pearlite, wherein the thickness of the coating layer is about 1 mm to 10 mm.
다음으로, 열풍으로 건조한다(S22). 팽창 펄라이트의 입자에 유무기 복합바인더가 코팅된 상태에서 고온의 열풍으로 건조시킨다. 건조시에는 팽청 펄라이트를 교반시켜 고루 건조되도록 한다. Next, it is dried with hot air (S22). The inorganic binder is coated on the particles of the expanded pearlite and dried with hot air at a high temperature. At the time of drying, the pearl pearlite is stirred so as to be evenly dried.
다음으로, 코팅된 팽창 펄라이트를 고온에서 성형한다(S23). 유무기 복합바인더가 코팅된 팽창 펄라이트를 스팀(steam)으로 가열하는 열간 가공을 통해 일정 크기와 형태로 성형하여 미가공된 형태의 단열재를 만든다. Next, the coated expanded pearlite is molded at a high temperature (S23). The expanded pearlite coated with inorganic and organic composite binder is formed into a predetermined size and shape by hot working by steam to form an uncoated heat insulating material.
끝으로, 완성품의 크기와 형태로 가공한다(S24). 열간 가공으로 성형된 미가공된 단열재를 사용 장소 및 위치에 적합하게 절단 등의 가공을 통해 완성된 단열재를 생산한다.
Finally, the finished product is processed in size and shape (S24). The finished heat insulator, which is formed by hot working, is produced by cutting or other suitable method suitable for the place and location of use.
이상에서 설명한 바와 같이, 본 발명이 속하는 기술분야의 통상의 기술자는 본 발명이 그 기술적 사상이나 필수적 특징을 변경하지 않고서 다른 구체적인 형태로 실시될 수 있다는 것을 이해할 수 있을 것이다. 그러므로 상술한 실시예들은 모든 면에 예시적인 것이며 한정적인 것이 아닌 것으로서 이해해야만 한다. 본 발명의 범위는 상세한 설명보다는 후술하는 특허청구범위에 의하여 나타내어지며, 특허청구범위의 의미 및 범위 그리고 등가 개념으로부터 도출되는 모든 변경 또는 변형된 형태가 본 발명의 범위에 포함되는 것으로 해석되어야 한다.As described above, those skilled in the art will appreciate that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.
Claims (3)
상기 팽창 펄라이트에 유무기 복합바인더를 분무하여 코팅하는 제21단계(S21);
코팅된 팽창 펄라이트를 열풍으로 건조하는 제22단계(S22);
건조된 팽창 펄라이트를 고온에서 성형하는 제23단계(S23);
완성품의 형태와 크기로 가공하는 제24단계(S24);를 포함하는 단열재 제조방법에 있어서,
상기 유무기 복합바인더는 48~52중량%의 규산소다 3호, 46~50중량%의 아크릴계화합물와, 1~2중량%의 폴리아미드이미드화합물을 혼합하여 제조된 것을 특징으로 하는 팽창 펄라이트가 함유된 단열재의 제조방법.
A twentieth step (S20) of pulverizing and preparing expanded pearlite;
A twenty-first step (S21) of spraying and coating an inorganic hybrid binder on the expanded pearlite;
Twenty-second step (S22) of drying the coated expanded pearlite with hot air;
Step 23 (S23) of molding the dried expanded pearlite at a high temperature;
And a twenty-fourth step (S24) of processing the shape and size of the finished product,
Wherein the organic / inorganic hybrid binder is prepared by mixing 48 to 52 wt% of sodium silicate 3, 46 to 50 wt% of an acrylic compound, and 1 to 2 wt% of a polyamideimide compound. Method of manufacturing insulation.
상기 제23단계(S23)에서는 스팀을 이용한 열간 가공으로 성형하는 것을 특징으로 하는 팽창 펄라이트가 함유된 단열재의 제조방법. The method according to claim 1,
Wherein the step (S23) is performed by hot working using steam. ≪ RTI ID = 0.0 > 21. < / RTI >
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102013691B1 (en) | 2018-02-21 | 2019-08-23 | 이지민 | Lightweight fire-retardant fireproofing material manufacturing device |
| KR20200039089A (en) | 2018-10-04 | 2020-04-16 | 주식회사 우신에코 | Method of manufacturing interior board and Interior board having unevenness pattern using the same |
| KR102131064B1 (en) * | 2020-04-14 | 2020-07-07 | 주식회사 호만산업 | Manufacturing Method of Interior Materials and Interior Materials Thereby |
| KR102208729B1 (en) | 2020-05-06 | 2021-01-28 | 한국도시재생기술(주) | Foamed pearlite panel |
| KR102424989B1 (en) | 2021-09-30 | 2022-07-25 | 주식회사 서강 | Method for manufacturing non-combustible building panel using expanded perlite |
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| KR100853754B1 (en) | 2007-03-26 | 2008-08-25 | 주식회사 우진이엔제이 | The refractory material of high strength for construction and the making method thereof |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100853754B1 (en) | 2007-03-26 | 2008-08-25 | 주식회사 우진이엔제이 | The refractory material of high strength for construction and the making method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102013691B1 (en) | 2018-02-21 | 2019-08-23 | 이지민 | Lightweight fire-retardant fireproofing material manufacturing device |
| KR20200039089A (en) | 2018-10-04 | 2020-04-16 | 주식회사 우신에코 | Method of manufacturing interior board and Interior board having unevenness pattern using the same |
| KR102131064B1 (en) * | 2020-04-14 | 2020-07-07 | 주식회사 호만산업 | Manufacturing Method of Interior Materials and Interior Materials Thereby |
| KR102208729B1 (en) | 2020-05-06 | 2021-01-28 | 한국도시재생기술(주) | Foamed pearlite panel |
| KR102424989B1 (en) | 2021-09-30 | 2022-07-25 | 주식회사 서강 | Method for manufacturing non-combustible building panel using expanded perlite |
| KR20230046943A (en) | 2021-09-30 | 2023-04-06 | 주식회사 서강 | Composition of non-combustible building panel comprising expanded perlite |
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