WO2015121894A1 - リン酸マグネシウム水和物を用いた吸熱材 - Google Patents
リン酸マグネシウム水和物を用いた吸熱材 Download PDFInfo
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- WO2015121894A1 WO2015121894A1 PCT/JP2014/000765 JP2014000765W WO2015121894A1 WO 2015121894 A1 WO2015121894 A1 WO 2015121894A1 JP 2014000765 W JP2014000765 W JP 2014000765W WO 2015121894 A1 WO2015121894 A1 WO 2015121894A1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K21/00—Fireproofing materials
- C09K21/02—Inorganic materials
- C09K21/04—Inorganic materials containing phosphorus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D21/00—Nestable, stackable or joinable containers; Containers of variable capacity
- B65D21/02—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together
- B65D21/0201—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together stackable or joined together side-by-side
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/16—Materials undergoing chemical reactions when used
- C09K5/18—Non-reversible chemical reactions
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
Definitions
- the present invention relates to an endothermic material using magnesium phosphate hydrate and a method for producing the same.
- the endothermic material by the polymer absorber is usually wrapped in a wrapping bag, but if the wrapping bag is broken, the water will evaporate even at room temperature and will not function.
- the endothermic material using aluminum hydroxide hydrate has a problem that the cable breaks before the hydrate is decomposed because the decomposition temperature of the hydrate is higher than the heat resistance temperature of the cable.
- An object of the present invention is to provide a novel endothermic material.
- An endothermic material comprising particles containing magnesium phosphate hydrate and a binder.
- 2. The endothermic material according to 1, wherein the magnesium phosphate hydrate is trimagnesium phosphate octahydrate.
- 3. The endothermic material according to 1 or 2, wherein the binder is an inorganic binder. 4).
- 4. The endothermic material according to any one of 1 to 3, wherein the binder is sodium silicate. 5.
- the endothermic material according to any one of 1 to 4 wherein the average particle diameter of the particles is 0.01 mm to 20 mm. 6). 6.
- 6. The endothermic material according to any one of 1 to 5, wherein the particles are accommodated in a container. 7).
- 11. Mixing magnesium phosphate hydrate and water glass, granulate to obtain hydrous particles, A method for producing an endothermic material, wherein water is removed from the water-containing particles to obtain particles.
- 12 The method for producing an endothermic material according to 11, wherein the particles are accommodated in a container.
- a novel endothermic material can be provided.
- FIG. 3 is a schematic longitudinal sectional view of a fireproof structure manufactured in Example 2.
- the endothermic material of the present invention comprises particles containing magnesium phosphate hydrate and a binder.
- magnesium phosphate hydrate examples include trimagnesium phosphate octahydrate (Mg 3 (PO 4 ) 2 ⁇ 8H 2 O), 3, 5, 10, and 22 hydrate. Octahydrate is preferred. Magnesium phosphate hydrate decomposes from around 100 ° C. and undergoes an endothermic reaction.
- An inorganic binder or an organic binder can be used as the binder.
- the inorganic binder include sodium silicate (water glass-derived material, Na 2 SiO 3 , Na 2 O ⁇ SiO 2 or Na 2 O ⁇ nSiO 2 ⁇ mH 2 O), colloidal silica, bentonite, and the like. preferable.
- the organic binder include PVA (polyvinyl alcohol), CMC (carboxymethyl cellulose), starch and the like.
- the endothermic material of the present invention may be composed only of magnesium phosphate hydrate and a binder, excluding inevitable impurities.
- the particles usually contain 1 to 99% by weight of magnesium phosphate hydrate and 1 to 99% by weight of binder, preferably 50 to 99% by weight of magnesium phosphate hydrate and 1 to 50% by weight of binder. More preferably, the magnesium phosphate hydrate is contained in an amount of 70 to 99% by weight and the binder is contained in an amount of 1 to 30% by weight.
- a granulated endothermic material is used.
- magnesium phosphate hydrate is used in the form of powder, it is difficult to pack in a bag (hard to seal, etc.) and tends to be biased downward in the bag.
- the average particle size of the particles is preferably 0.01 mm to 20 mm, more preferably 0.1 mm to 15 mm. The smaller the particle size, the larger the surface area and the better the endothermic material, but it becomes difficult to handle.
- the endothermic material of the present invention is usually used by putting particles in a container such as a bag or case. What was enclosed in the bag-like heat resistant cloth (cloth, a sheet
- the container is not required to be airtight.
- FIG. 1 shows a perspective view of an example of a sachet used for the heat absorbing material of the present invention.
- the wrapping bag 2 is formed by connecting a plurality of bags 4 side by side through gussets 6. Close the particle by putting it through the upper opening.
- a wrapping bag is convenient because it can be folded and rolled when carried in a small space. Moreover, it can arrange
- the particles used for the endothermic material of the present invention are mixed with magnesium phosphate hydrate and water glass (Na 2 O ⁇ nSiO 2 ⁇ mH 2 O), granulated to obtain water-containing particles, and water is contained from the water-containing particles. It can be obtained by removing. Furthermore, the obtained particle
- the endothermic material of the present invention can be used alone as a heat insulating material, but may be combined with other heat insulating materials. By combining them, a more effective heat insulation structure can be constructed, and strong heat insulation and fire resistance can be exhibited.
- Example 2 (1) Assembly of fireproof structure Using the endothermic material manufactured in Example 1 and the following first and second heat insulating materials, the fireproof structure shown in FIGS.
- FIG. 2 is a longitudinal sectional view of a cable rack on which cables used in the experiment are placed
- FIG. 3 is a schematic longitudinal sectional view of a fireproof structure.
- the legs 102 of the cable rack 100 are erected, the step 104 is fixed to a frame attached to the cable rack, and the cable rack 100 is assembled.
- a case containing the cable 200 was placed on the stage 104 of the cable rack.
- the heat absorbing material 10 manufactured in Example 1 surrounded the periphery of the leg 102 and the step 104 of the cable rack. Further, the periphery thereof was surrounded by the laminated heat insulating material 20.
- the laminated heat insulating material 20 is formed by laminating one layer (20 mm) of the following first heat insulating material 22 and three layers (25 mm ⁇ 3) of the following second heat insulating material 24 from the inner side where the cable is present. Is wrapped with silica cloth.
- the cable rack 100 was installed in the vertical furnace.
- First heat insulating material Aerogel / Inorganic fiber composite (Pyrogel, Aspen Co., Ltd.)
- Second heat insulating material biosoluble fiber blanket (biosoluble fiber composition: about 73 mass% SiO 2 content, about 25 mass% CaO content, about 0.3 mass% MgO content, Al 2 O 3 Content about 2% by mass)
- thermocouple is between the second and third layers from the inside of the second heat insulating material 24 (48 in FIG. 4), and between the first and second layers from the inside of the second heat insulating material 24 (see FIG. 4, 46), between the second heat insulating material 24 and the first heat insulating material 22 (44 in FIG. 4), between the first heat insulating material 22 and the endothermic material 10 (42 in FIG. 4), and It was installed directly above the cable case mounted on the upper stage (40 in FIG. 4). In a vertical furnace, heating was performed for 3 hours with an ISO standard refractory curve by a burner, and then allowed to cool for 2 hours. Table 1 shows the measured temperatures (° C.) after 1, 2, 3, 5, 8, and 10 hours at the respective thermocouple installation positions.
- the temperature immediately above the cable case 40 is about 163 ° C., and it was confirmed that the continuity of the cable is ensured. Furthermore, although the temperature of the upper part 40 of the cable case was maintained at 100 ° C. for about 20 minutes in the vicinity of 3 hours after heating, this is considered to be due to the action of water contained in the endothermic material evaporating.
- the heat-absorbing material of the present invention can be used as a heat-absorbing material used in a place or facility where fire resistance is required, such as a nuclear power plant.
Abstract
Description
しかしながら、従来の吸熱材は、かさ張ること及び重量が重いこと、又はケーブルを敷設した後ではケーブル被覆を行うだけのスペースが狭いことからケーブル被覆の交換が困難であることが問題となっていた。
水酸化アルミニウム水和物を用いた吸熱材は、水和物の分解温度がケーブルの耐熱温度よりも高いため、水和物が分解される前にケーブルが破損してしまうといった問題があった。
一方、リン酸マグネシウム水和物は吸熱材として知られている(特許文献1,2)。
1.リン酸マグネシウム水和物とバインダーを含む粒子を、具備する吸熱材。
2.前記リン酸マグネシウム水和物が、リン酸3マグネシウム8水和物である1記載の吸熱材。
3.前記バインダーが、無機バインダーである1又は2記載の吸熱材。
4.前記バインダーが、珪酸ナトリウムである1~3のいずれか記載の吸熱材。
5.前記粒子の平均粒径が、0.01mm~20mmである1~4のいずれか記載の吸熱材。
6.前記粒子が、容器に収容されている1~5のいずれか記載の吸熱材。
7.前記容器が、耐熱性クロスからなる6記載の吸熱材。
8.前記耐熱性クロスが、ガラスクロス、シリカクロス又はアルミナクロスである7記載の吸熱材。
9.前記耐熱性クロスが、表面にアルミが蒸着されたクロスである7記載の吸熱材。
10.前記容器が、複数連続して繋がっている1~9のいずれか記載の吸熱材。
11.リン酸マグネシウム水和物と水ガラスを混合し、造粒して含水粒子を得、
前記含水粒子から水を除去して粒子を得る、吸熱材の製造方法。
12.前記粒子を、容器に収容する11記載の吸熱材の製造方法。
リン酸マグネシウム水和物として、リン酸3マグネシウム8水和物(Mg3(PO4)2・8H2O)、3、5、10、22水和物が例示されるが、リン酸3マグネシウム8水和物が好ましい。リン酸マグネシウム水和物は100℃付近から分解し吸熱反応が進む。
無機バインダーは、珪酸ナトリウム(水ガラス由来物、Na2SiO3、Na2O・SiO2又はNa2O・nSiO2・mH2O)、コロイダルシリカ、ベントナイト等が例示されるが、珪酸ナトリウムが好ましい。
有機バインダーは、PVA(ポリビニルアルコール)、CMC(カルボキシメチルセルロース)、澱粉等が例示される。
粒子において、通常、リン酸マグネシウム水和物は1~99重量%、バインダーは1~99重量%含まれ、好ましくは、リン酸マグネシウム水和物は50~99重量%、バインダーは1~50重量%含まれ、より好ましくは、リン酸マグネシウム水和物は70~99重量%、バインダーは1~30重量%含まれる。
リン酸3マグネシウム8水和物と、水ガラス3号(珪酸ナトリウム)(Na2O・nSiO2・mH2O(n=3.0~3.4))を重量比91:9で混合し、造粒して、平均粒径2mm~7mmの含水粒子を得た、これを90℃での乾燥により水を除去して粒子を得た。得られた粒子を、ガラスクロス製の包袋に収容して吸熱材を製造した。包袋は、図1に示すように、縦160mm、横160mmの長方形を、10mmのマチを介して、横方向に複数繋げた形状であった。厚さは25mmであった。
(1)耐火構造の組み立て
実施例1で製造した吸熱材及び以下の第1及び第2の断熱材を用いて、図2,3に示す耐火構造を組み立てて、耐火試験を実施した。図2は、実験に用いたケーブルを載せたケーブルラックの縦断面図であり、図3は、耐火構造の概略縦断面図である。
図3に示すように、実施例1で製造した吸熱材10で、ケーブルラックの脚102、段104の周囲を囲んだ。さらに、その周囲を、積層断熱材20で囲った。積層断熱材20は、ケーブルのある内側から、以下の第1の断熱材22を1層(20mm)、及び以下の第2の断熱材24を3層(25mm×3)を積層し、外側全体をシリカクロスで包んだものである。
縦型炉中に、ケーブルラック100を設置した。
・第2の断熱材:生体溶解性繊維ブランケット(生体溶解性繊維組成:SiO2含有量約73質量%、CaO含有量約25質量%、MgO含有量約0.3質量%、Al2O3含有量約2質量%)
図3に、熱電対の設置位置を示す。
熱電対は、第2の断熱材24の内側から2層目と3層目の間(図4中、48)、第2の断熱材24の内側から1層目と2層目の間(図4中、46)、第2の断熱材24と第1の断熱材22の間(図4中、44)、第1の断熱材22と吸熱材10の間(図4中、42)、及び上段に載ったケーブルケースの直上(図4中、40)に設置した。
縦型炉において、バーナーにより、ISO標準耐火曲線で3時間加熱を行った後、2時間放冷した。それぞれの熱電対の設置位置における、1,2,3,5,8,10時間後の測定温度(℃)を、表1に示す。
この明細書に記載の文献の内容を全てここに援用する。
Claims (12)
- リン酸マグネシウム水和物とバインダーを含む粒子を、具備する吸熱材。
- 前記リン酸マグネシウム水和物が、リン酸3マグネシウム8水和物である請求項1記載の吸熱材。
- 前記バインダーが、無機バインダーである請求項1又は2記載の吸熱材。
- 前記バインダーが、珪酸ナトリウムである請求項1~3のいずれか記載の吸熱材。
- 前記粒子の平均粒径が、0.01mm~20mmである請求項1~4のいずれか記載の吸熱材。
- 前記粒子が、容器に収容されている請求項1~5のいずれか記載の吸熱材。
- 前記容器が、耐熱性クロスからなる請求項6記載の吸熱材。
- 前記耐熱性クロスが、ガラスクロス、シリカクロス又はアルミナクロスである請求項7記載の吸熱材。
- 前記耐熱性クロスが、表面にアルミが蒸着されたクロスである請求項7記載の吸熱材。
- 前記容器が、複数連続して繋がっている請求項1~9のいずれか記載の吸熱材。
- リン酸マグネシウム水和物と水ガラスを混合し、造粒して含水粒子を得、
前記含水粒子から水を除去して粒子を得る、吸熱材の製造方法。 - 前記粒子を、容器に収容する請求項11記載の吸熱材の製造方法。
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Application Number | Priority Date | Filing Date | Title |
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CN201480075432.7A CN105980510A (zh) | 2014-02-14 | 2014-02-14 | 使用磷酸镁水合物的吸热材料 |
PCT/JP2014/000765 WO2015121894A1 (ja) | 2014-02-14 | 2014-02-14 | リン酸マグネシウム水和物を用いた吸熱材 |
JP2015539976A JP5890943B2 (ja) | 2014-02-14 | 2014-02-14 | リン酸マグネシウム水和物を用いた吸熱材 |
EP14882256.2A EP3106501B1 (en) | 2014-02-14 | 2014-02-14 | Heat-absorbing material that uses magnesium phosphate hydrate |
US15/117,843 US10329487B2 (en) | 2014-02-14 | 2014-02-14 | Heat-absorbing material that uses magnesium phosphate hydrate |
TW104105113A TWI680942B (zh) | 2014-02-14 | 2015-02-13 | 使用磷酸鎂水合物之吸熱材 |
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JP5863917B1 (ja) * | 2014-09-22 | 2016-02-17 | ニチアス株式会社 | 耐火構造及びその使用方法 |
WO2022185048A1 (en) * | 2021-03-04 | 2022-09-09 | Morgan Advanced Materials Plc | Endothermic composite |
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CN106601991A (zh) * | 2016-12-30 | 2017-04-26 | 先雪峰 | 添加剂的应用、电极浆料、添加剂浆料、锂离子电池正极或负极及其制备方法和锂离子电池 |
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JP4113762B2 (ja) * | 2002-11-07 | 2008-07-09 | 株式会社ト−ヨ | 溶融金属保護衣 |
JP2010126961A (ja) * | 2008-11-27 | 2010-06-10 | Nichias Corp | 無機中空体組成物の施工方法 |
WO2011075541A1 (en) * | 2009-12-15 | 2011-06-23 | Pcm Innovations Llc | Phase change material fire resistant blanket and method of making |
JP5863917B1 (ja) * | 2014-09-22 | 2016-02-17 | ニチアス株式会社 | 耐火構造及びその使用方法 |
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- 2014-02-14 WO PCT/JP2014/000765 patent/WO2015121894A1/ja active Application Filing
- 2014-02-14 US US15/117,843 patent/US10329487B2/en active Active
- 2014-02-14 CN CN201480075432.7A patent/CN105980510A/zh active Pending
- 2014-02-14 EP EP14882256.2A patent/EP3106501B1/en active Active
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JP2008274253A (ja) * | 2007-03-30 | 2008-11-13 | Sk Kaken Co Ltd | 吸熱性材料 |
JP2009191493A (ja) * | 2008-02-13 | 2009-08-27 | Nichias Corp | 軒天換気構造およびその施工方法 |
JP2010126389A (ja) * | 2008-11-27 | 2010-06-10 | Nichias Corp | 無機中空体組成物およびその製造方法 |
Cited By (2)
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JP5863917B1 (ja) * | 2014-09-22 | 2016-02-17 | ニチアス株式会社 | 耐火構造及びその使用方法 |
WO2022185048A1 (en) * | 2021-03-04 | 2022-09-09 | Morgan Advanced Materials Plc | Endothermic composite |
Also Published As
Publication number | Publication date |
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CN105980510A (zh) | 2016-09-28 |
EP3106501B1 (en) | 2020-06-03 |
TW201545970A (zh) | 2015-12-16 |
EP3106501A4 (en) | 2017-10-18 |
JP5890943B2 (ja) | 2016-03-22 |
JPWO2015121894A1 (ja) | 2017-03-30 |
TWI680942B (zh) | 2020-01-01 |
US20170009139A1 (en) | 2017-01-12 |
EP3106501A1 (en) | 2016-12-21 |
US10329487B2 (en) | 2019-06-25 |
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