WO2019073683A1 - 亜リン酸アルミニウム、および亜リン酸アルミニウムを含む組成物 - Google Patents
亜リン酸アルミニウム、および亜リン酸アルミニウムを含む組成物 Download PDFInfo
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- WO2019073683A1 WO2019073683A1 PCT/JP2018/030032 JP2018030032W WO2019073683A1 WO 2019073683 A1 WO2019073683 A1 WO 2019073683A1 JP 2018030032 W JP2018030032 W JP 2018030032W WO 2019073683 A1 WO2019073683 A1 WO 2019073683A1
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- aluminum phosphite
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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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
- C09D5/185—Intumescent paints
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/163—Phosphorous acid; Salts thereof
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- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
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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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/30—Particle morphology extending in three dimensions
- C01P2004/32—Spheres
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- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/016—Flame-proofing or flame-retarding additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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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
Definitions
- the present invention relates to aluminum phosphite and a composition comprising aluminum phosphite.
- the applicant discloses in patent document 1 spherical aluminum phosphite crystals and a method for producing the same.
- the above-mentioned aluminum phosphite is finely divided while stirring a viscous aluminum phosphite slurry obtained by adding alumina hydrate to a phosphorous acid aqueous solution heated to 50 ° C. or higher and reacting at 50 to 90 ° C. These crystals are gradually precipitated to grow into spherical bodies, and the product is centrifugally dewatered, which is produced by drying at 200 ° C. for 16 hours, and has foamability.
- the above-mentioned aluminum phosphite is useful as a flame retardancy improver for thermoplastic resins such as polyester resins and polyamide resins, and is commercialized as APA-100.
- Aluminum phosphite improves flame retardancy by forming a heat insulating layer having air bubbles called a surface expansion layer (Intumescent) on its surface at the time of combustion.
- a surface expansion layer Intumescent
- the demand for heat resistance has been increasing, and it is highly desired to provide aluminum phosphite having a higher expansion ratio.
- This invention is made in view of the said situation, The objective is to provide the composition containing aluminum phosphite with high foaming ratio, and the said aluminum phosphite.
- a composition comprising an organic matrix, and the aluminum phosphite described in the above [1].
- the present invention it is possible to provide aluminum phosphite having a higher expansion ratio than conventional aluminum phosphite.
- the composition containing the aluminum phosphite of the present invention is extremely excellent in heat resistance to materials such as, for example, stainless steel plates, and so is useful as a fireproof paint or the like.
- FIG. 1 is a schematic view of a heat resistance test apparatus used in Experimental Example 2.
- the present inventors examined in order to solve the above-mentioned subject.
- the aluminum phosphite of the present invention is a foamable spherical aluminum phosphite characterized by being represented by the following formula.
- x is preferably 2.03 or more, more preferably 2.05 or more, and still more preferably 2.07 or more. Moreover, 2.40 or less is preferable and 2.25 or less is more preferable.
- y is preferably 0.05 or more, more preferably 0.15 or more, and still more preferably 0.25 or more. Moreover, 1.20 or less is preferable and, as for y, 0.80 or less is more preferable.
- the aluminum phosphite of the present invention may be a hydrate, and z is an integer of 0-4.
- the aluminum phosphite of the present invention is spherical.
- “spherical” has a shape similar to a sphere and a sphere, and has a diameter of about 0.1 to 500 ⁇ m (preferably 0.5 to 350 ⁇ m, more preferably 1 to 300 ⁇ m). More preferably, it is distributed in 2 to 125 ⁇ m and means one having an average diameter of about 4 to 50 ⁇ m (preferably 15 to 35 ⁇ m).
- the shape of the aluminum phosphite can be referred to, for example, FIGS. 1 to 3 of Patent Document 1 mentioned above. The spherical shape is confirmed by observation with a scanning electron microscope (SEM) as described in the column of Examples described later.
- SEM scanning electron microscope
- the aluminum phosphite of the present invention is characterized in that it has high foamability.
- “foamable” means one that foams when heated to about 300 ° C. to 1350 ° C.
- the aluminum phosphite of the present invention foams stably up to about 1200 ° C.
- the foaming ratio is measured by the method described in the examples described later. In this example, the foaming ratio is measured based on the volume change before and after the aluminum phosphite is heated at 500 ° C. for 1 hour, compared to the method of measuring the foaming ratio roughly based on the appearance etc.
- the expansion ratio can be calculated with high accuracy.
- the Al source include aluminum hydroxide, alumina hydrate, and boehmite.
- P supply sources phosphorous acid, aluminum dihydrogen phosphite and the like can be mentioned.
- the mixture is charged into a stirrer and mixed, and then it is allowed to progress from a slurry state to a viscous liquid (reaction product) while stirring at 50 to 90 ° C., and fine crystals are gradually precipitated to form spherical bodies. To grow. Thereafter, there may be mentioned a method of drying the centrifuged and dehydrated aluminum phosphite at 120 to 200 ° C. for 1 to 48 hours.
- composition of the present invention contains an organic matrix and the above-mentioned aluminum phosphite.
- the above composition is particularly excellent in heat resistance.
- the details of aluminum phosphite are as described above.
- the content ratio of aluminum phosphite to 100 parts by mass of the composition is preferably 5 to 70 parts by mass in order to effectively exhibit the above-mentioned action by the addition of aluminum phosphite. If it is less than the above ratio, the addition effect of the above-mentioned aluminum phosphite is not exhibited effectively, and the heat resistance is lowered. On the other hand, when the above ratio is exceeded, the kneading operation becomes difficult.
- the above content ratio is more preferably 20 to 60 parts by mass.
- Organic matrix is not particularly limited as long as it is mixed with aluminum phosphite to improve heat resistance, and examples thereof include paint components, resins such as polyamide resin, rubber, and textiles. Foams such as expanded graphite can also be used as the organic matrix. These may be added alone or in combination of two or more.
- the paint component examples include synthetic resins such as acrylic resin, silicone resin, acrylic silicone resin, melamine resin, fluorine resin, polyester resin, epoxy resin and urethane; and natural oil resins derived from plants, animals and minerals.
- a commercial item may be used for the said coating material, for example, water-based versatile color (made by Asahi Pen Co., Ltd.) etc. are used.
- the aluminum phosphite of the present invention has a high foaming ratio, when a composition (foamed coating composition) in which the above aluminum phosphite is blended with a paint component is applied to a material such as a stainless steel plate, Fire resistance effect is significantly improved.
- the above composition is a foam-hardened product, it is possible to stably maintain an excellent fireproof effect without blowing off by, for example, a thermal power like a composition in which ammonium polyphosphate is blended with a paint component. .
- the preferred coating film thickness of the above-mentioned foam-type coating composition may be suitably changed depending on the material to be used, the application site and the like, and is not particularly limited, and is, for example, about 0.1 to 5 mm. As shown in Experimental Example 2 described later, according to the present invention, even if the coating film thickness is as thin as 0.5 mm, it is extremely useful in that it can exhibit excellent fire resistance performance to a stainless steel plate. .
- thermoplastic resins such as polyamide resin, polyester resin, polycarbonate resin, acrylic resin, olefin resin, styrene resin, polyolefin oxide resin and vinyl resin are preferably used as the resin, and polyamide resin or polyester resin is more preferably used.
- the present invention is characterized in that the above-mentioned aluminum phosphite is used, and the type of thermoplastic resin to be used is not particularly limited.
- polyamides or polyesters described in JP-A-2013-538926 can be used.
- a commercial item may be used for the said resin, for example, Novaduran 5010R5 (made by Mitsubishi Engineering Plastics), Amilan CM3001N (made by Toray) etc. are used.
- the content ratio of the resin to 100 parts by mass of the composition containing the resin is preferably 30 to 95 parts by mass. If the ratio is lower than the above ratio, the kneading torque is increased and the workability is significantly reduced. On the other hand, if the ratio is exceeded, the desired heat resistance can not be obtained.
- the above content ratio is more preferably 40 to 80 parts by mass.
- composition of the present invention may further contain the following additives.
- an inorganic filler may be further contained for the purpose of reinforcing the strength, rigidity and the like of the resin.
- the feature of the present invention lies in the use of the above-mentioned aluminum phosphite, and the type of the inorganic filler is not particularly limited.
- glass fiber, carbon fiber, silicon carbide fiber, alumina fiber, potassium titanate Commonly used ones such as whisker, aluminum borate whisker, aramid fiber, mica, talc, kaolin, wollastonite can be used. Each of these may be used alone, or a mixture of two or more may be used.
- glass fibers, carbon fibers, mica, talc, kaolin, wollastonite, and mixtures thereof are preferably used.
- the inorganic filler may be a commercially available product, and for example, ECS03-631K (manufactured by Central Glass Fibers Co., Ltd.) or the like is used.
- the content ratio of the inorganic filler to 100 parts by mass of the above composition containing a resin is preferably 5 to 60 parts by mass. If it is less than the above ratio, the addition effect of the inorganic filler is not exhibited effectively, and it becomes difficult to reinforce the strength and the like of the resin. On the other hand, if the ratio is exceeded, kneading work becomes difficult.
- the above content ratio is more preferably 10 to 45 parts by mass.
- the above composition containing a resin may contain a phosphinate.
- the type of the phosphinic acid salt is not particularly limited, and examples thereof include dimethylphosphinic acid, ethyl methyl phosphinic acid, diethyl phosphinic acid, methyl-n-propyl phosphinic acid, isobutyl methyl phosphinic acid, octyl methyl phosphinic acid, methyl phenyl phosphinic acid, Diphenyl phosphinic acid etc. are mentioned.
- diethylphosphinic acid is preferably used in consideration of the price, handling and the like.
- the phosphinic acid salt is a salt of the above-mentioned phosphinic acid, and examples thereof include calcium salt, aluminum salt, magnesium salt, zinc salt and the like.
- phosphinates used in the present invention aluminum diethylphosphinate and zinc diethylphosphinate are preferable, and aluminum diethylphosphinate is more preferable, in consideration of the flame resistance, the balance of the electric characteristics, and the like.
- a commercially available product may be used as the above-mentioned phosphinate, and for example, Exolit OP-1230 (manufactured by Clariant) or the like is used.
- the content ratio of the phosphinate to 100 parts by mass of the composition containing a resin is preferably 15 to 50 parts by mass. Below the above ratio, the flame retardancy improvement effect by the addition of the phosphinate is not effectively exhibited. On the other hand, if the ratio is exceeded, the kneading torque is increased, and the workability is significantly reduced.
- the above content ratio is more preferably 20 to 30 parts by mass.
- composition of the present invention is applicable to various fields such as paints, adhesives, electric and electronic parts, automobiles, and building interior parts, for example.
- Experimental Example 1 In this experimental example, as described in Table 1, the crystal form and the expansion ratio were compared and studied when aluminum phosphite was manufactured by variously changing the compounding ratio (molar ratio) of Al and P.
- the conventional example is an example corresponding to the aforementioned Patent Document 1.
- 1,400 g of water was added to 1,400 g of phosphorous acid to prepare a 50% aqueous solution, which was then heated to 80 ° C. 887.9 g of aluminum hydroxide was gradually added to the reaction with stirring at the temperature to be reacted to make a viscous solution, and stirring was continued for 3 hours while maintaining at 80 ° C. to complete crystallization. Thereafter, the reaction slurry was filtered and dried at 200 ° C. for 16 hours to obtain the conventional aluminum phosphite.
- Example 1 The aluminum phosphite of Example 1 was obtained in the same manner as the conventional example except that the addition amount of aluminum hydroxide was changed to 892.3 g.
- Example 2 The aluminum phosphite of Example 2 was obtained in the same manner as in the conventional example except that the addition amount of aluminum hydroxide was changed to 905.7 g.
- Example 3 The aluminum phosphite of Example 3 was obtained in the same manner as in the conventional example except that the addition amount of aluminum hydroxide was changed to 923.4 g.
- Example 4 The aluminum phosphite of Example 4 was obtained in the same manner as the conventional example except that the addition amount of aluminum hydroxide was changed to 932.3 g in the prior art.
- Example 5 The aluminum phosphite of Example 5 was obtained in the same manner as in the conventional example except that the addition amount of aluminum hydroxide was changed to 976.7 g.
- Example 6 The aluminum phosphite of Example 6 was obtained in the same manner as in the conventional example except that the addition amount of aluminum hydroxide was changed to 1021.1 g.
- Example 7 The aluminum phosphite of Example 7 was obtained in the same manner as the conventional example except that the addition amount of aluminum hydroxide was changed to 1109.9 g in the prior art.
- Comparative Example 1 The aluminum phosphite of Comparative Example 1 was obtained in the same manner as the conventional example except that the addition amount of aluminum hydroxide was changed to 1243.1 g.
- Comparative example 2 The aluminum phosphite of Comparative Example 2 was obtained in the same manner as the conventional example except that the addition amount of aluminum hydroxide was changed to 1331.9 g.
- compositional ratio of Al and P 0.1 g of each compound was weighed, and 20 mL of aqua regia was added and dissolved by heating to about 100 ° C. (boiling). The Al content and P content of the solution thus obtained were measured using an ICP emission spectrophotometer (SPS 3520V manufactured by SII Nano Technology Inc.).
- Crystal form The crystal form of each compound was observed using a scanning electron microscope (TM-1000 Miniscope manufactured by Hitachi High-Technologies Corporation).
- Comparative Examples 1 and 2 are both examples in which the composition ratio specified in the present invention is not satisfied, and Comparative Example 1 has a foaming ratio twice lower than that of the conventional example, and Comparative Example 2 is completely foamed. It was not.
- test pieces for heat resistance evaluation the ratio of 40: 60 (parts by mass) of each of the above-mentioned aluminum phosphites and an aqueous paint [aqueous versatile color (clear) made by Asahi Penn Co., Ltd.] The mixture was mixed and dispersed (2160 rpm) for 2 minutes using a batch-type table-type sand mill (batch-type table-top sand mill dispersion software manufactured by Campe Household Paint Co., Ltd.).
- Each coating composition thus obtained was applied to a SUS304 plate (long 200 mm ⁇ horizontal 200 mm ⁇ thickness 2 mm) manufactured by Daido Steel Co., Ltd. to a thickness of 2.5 mm so that the coating thickness would be 0.5 mm.
- the sample was applied using a mold of and dried at room temperature for 12 hours to obtain test pieces for evaluation of heat resistance (test pieces No. 2 to 11 in Table 2).
- heat resistance (refractory performance) was evaluated as follows with reference to “the fire resistance test method of the building structure part” described in JIS A 1304 (1994). .
- the tip of the gas burner 1 (RINCE GT-9000 manufactured by Style) equipped with a gas cylinder (GT-G manufactured by Prince Co., Ltd.) was coated with a coating 3 on each SUS 304 plate 2 50 mm away from the center of the coated film surface of contact type) and at the center of the back surface side (the side on which the coated film 3 is not formed) of each test piece, the contact type thermocouple 4 (E5CB manufactured by Omron Control Equipment Co., Ltd.) ) was attached and heated for 10 minutes, and the temperature (maximum temperature) when the back surface SUS plate reached the maximum temperature was measured.
- the temperature of the gas burner was 2,100.degree. The thing which did not apply
- Test piece No. in Table 2 1 is an example in which the heat resistance test was conducted without applying the above coating composition at all to the SUS304 plate, and the maximum temperature exceeded 1000 ° C., and the measurement was impossible.
- test piece No. Nos. 3 to 9 are examples using the coating composition containing the aluminum phosphite of Examples 1 to 7 of Table 1 satisfying the composition ratio defined in the present invention, and the conventional aluminum phosphites of Table 1 were used.
- This experimental result means that the heat resistance to the stainless steel plate is remarkably improved by using the aluminum phosphite of the present invention.
- test piece No. 1 using the aluminum phosphite of Examples 3 to 6 in Table 1 has a very high foaming ratio of 22 to 32 times.
- the maximum temperature at 5 to 8 is 335 to 390 ° C. It could be reduced to about half of 2 (maximum temperature 750 ° C.).
- test piece No. The samples 11 and 12 are all examples using the paint compositions containing the aluminum phosphite of Comparative Examples 1 and 2 of Table 1 which deviate from the composition ratio of the present invention.
- the maximum temperature increased more than two.
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Abstract
Description
[1]下式で表されることを特徴とする発泡性の球状亜リン酸アルミニウム。
Alx(OH)y(HPO3)3・zH2O
式中、
xは2.01以上、2.50以下
yは0.03以上、1.50以下
zは0~4の整数をそれぞれ、意味する。
[2]有機マトリックス、および上記[1]に記載の亜リン酸アルミニウムを含有することを特徴とする組成物。
本発明の亜リン酸アルミニウムは、下式で表されることを特徴とする発泡性の球状亜リン酸アルミニウムである。これに対し、特許文献1のようにAlとPを化学量論比で配合した場合は下記式においてx=2.00、y=0であり、Al2(HPO3)3で表される点で本発明と相違する。
Alx(OH)y(HPO3)3・zH2O
式中、
xは2.01以上、2.50以下
yは0.03以上、1.50以下
zは0~4の整数をそれぞれ、意味する。
上記亜リン酸アルミニウムの形状は、例えば前述した特許文献1の図1~3を参照することができる。球状であることは、後記する実施例の欄に記載のとおり、走査型電子顕微鏡(SEM)で観察して確認している。
本発明の組成物は、有機マトリックス、および上記の亜リン酸アルミニウムを含有する。上記組成物は特に耐熱性に優れている。
亜リン酸アルミニウムの詳細は前述したとおりである。亜リン酸アルミニウム添加による上記作用を有効に発揮させるため、組成物100質量部に対する亜リン酸アルミニウムの含有比率は、5~70質量部であることが好ましい。上記比率を下回ると上記亜リン酸アルミニウムの添加効果が有効に発揮されず、耐熱性が低下する。一方、上記比率を超えると混練作業が困難になる。上記含有比率は、より好ましくは20~60質量部である。
上記有機マトリックスは、亜リン酸アルミニウムと混合して耐熱性を向上させるものであれば特に限定されず、例えば塗料成分、ポリアミド樹脂などの樹脂、ゴム、織物などが挙げられる。また膨張黒鉛などのような発泡体も上記有機マトリックスとして使用可能である。これらは単独で添加しても良いし、二種以上を併用しても良い。
本実験例では、表1に記載のようにAlとPの配合比(モル比)を種々変更して亜リン酸アルミニウムを製造したときの、結晶形および発泡倍率を比較検討した。
従来例は、前述した特許文献1に対応する例である。
まず亜リン酸1,400gに水1,400gを加えて50%水溶液を調製した後、80℃まで加熱した。当該温度で撹拌しながら水酸化アルミニウム887.9gを徐々に加えて反応させて粘稠性な溶液とした後、80℃に保持しながら3時間撹拌を続けて結晶化を完了させた。その後、反応スラリーをろ過したものを200℃で16時間乾燥して従来例の亜リン酸アルミニウムを得た。
上記従来例において、水酸化アルミニウムの添加量を892.3gに変更したこと以外は上記従来例と同様にして実施例1の亜リン酸アルミニウムを得た。
上記従来例において、水酸化アルミニウムの添加量を905.7gに変更したこと以外は上記従来例と同様にして実施例2の亜リン酸アルミニウムを得た。
上記従来例において、水酸化アルミニウムの添加量を923.4gに変更したこと以外は上記従来例と同様にして実施例3の亜リン酸アルミニウムを得た。
上記従来例において、水酸化アルミニウムの添加量を932.3gに変更したこと以外は上記従来例と同様にして実施例4の亜リン酸アルミニウムを得た。
上記従来例において、水酸化アルミニウムの添加量を976.7gに変更したこと以外は上記従来例と同様にして実施例5の亜リン酸アルミニウムを得た。
上記従来例において、水酸化アルミニウムの添加量を1021.1gに変更したこと以外は上記従来例と同様にして実施例6の亜リン酸アルミニウムを得た。
上記従来例において、水酸化アルミニウムの添加量を1109.9gに変更したこと以外は上記従来例と同様にして実施例7の亜リン酸アルミニウムを得た。
上記従来例において、水酸化アルミニウムの添加量を1243.1gに変更したこと以外は上記従来例と同様にして比較例1の亜リン酸アルミニウムを得た。
上記従来例において、水酸化アルミニウムの添加量を1331.9gに変更したこと以外は上記従来例と同様にして比較例2の亜リン酸アルミニウムを得た。
各化合物を0.1g秤量し、20mLの王水を添加して、約100℃(煮沸)に加熱して溶解した。このようにして得られた溶液のAl含有量およびP含有量を、ICP発光分光分析装置(エスアイアイナノテクノロジー株式会社製のSPS3520V)を用いて測定した。
各化合物の結晶形を、走査型電子顕微鏡(株式会社日立ハイテクノロジーズ製のTM-1000 Miniscope)を用いて観察した。
20mLのスクリュー管(株式会社マルエム製のNo.5)に、各化合物0.2gを入れて、卓上マッフル炉(デンケン・ハイデンタル株式会社製のKDF S80)を用いて500℃で1時間加熱した。加熱前後の体積変化量を測定して、各化合物の発泡倍率を算出した。
本実験例では、耐熱性評価用試験片を備えた図1の耐熱試験装置を用い、ステンレス板に対する耐熱性を比較検討した。
まず、上記の各亜リン酸アルミニウムと、水性塗料[株式会社アサヒペン製の水性多用途カラー(クリヤ)]とを、40:60(質量部)の割合で配合し、バッチ式卓上型サンドミル(カンペ家庭塗料(株)製のバッチ式卓上サンドミル分散ソフト)を用いて2分間混合分散(2160rpm)した。
本実施例では、JIS A 1304(1994)に記載の「建築構造部分の耐火試験方法」を参考にして、以下のようにして耐熱性(耐火性能)を評価した。
図1に示すように、ガスボンベ(プリンス社製GT-G)を装着したガスバーナー1(スタイル製のRINCE GT-9000)の先端を、各試験片(SUS304板2に塗膜3が施されたもの)の塗膜面中心部から50mm離れるように取り付けると共に、各試験片の裏面側(塗膜3が形成されていない側)の中心部に接触型熱電対4(オムロン制御機器社製のE5CB)を取り付けて10分間加熱し、裏面のSUS板が最高温度に達したときの温度(最高温度)を測定した。ガスバーナーの温度は2,100℃とした。
比較のため、上記SUS304板に塗料組成物を塗布しなかったものも用意して、同様に最高温度を測定した(表2の試験片No.1)。
これらの結果を表2に示す。
特に発泡倍率が22~32倍と非常に高い表1の実施例3~6の亜リン酸アルミニウムを用いた試験片No.5~8における最高温度は335~390℃であり、試験片No.2(最高温度750℃)の約半分まで低減することができた。
2 SUS304板
3 塗膜
4 接触型熱電対
Claims (2)
- 下式で表されることを特徴とする発泡性の球状亜リン酸アルミニウム。
Alx(OH)y(HPO3)3・zH2O
式中、
xは2.01以上、2.50以下
yは0.03以上、1.50以下
zは0~4の整数をそれぞれ、意味する。 - 有機マトリックス、および請求項1に記載の亜リン酸アルミニウムを含有することを特徴とする組成物。
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| CN201880065680.1A CN111201197B (zh) | 2017-10-11 | 2018-08-10 | 亚磷酸铝和包含亚磷酸铝的组合物 |
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| DE102021202508A1 (de) | 2021-03-15 | 2022-09-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein | Verwendung einer Stabilisatorzusammensetzung zur Stabilisierung von Polyolefin-Recyclaten, Stabilisatorzusammensetzung, Masterbatchkonzentrat, Kunststoffzusammensetzung, Formmasse oder Formteil, Verfahren zur Stabilisierung eines Polyolefin-Recyclats sowie Verwendung einer Kunststoffzusammensetzung |
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| JP7477125B2 (ja) | 2020-10-12 | 2024-05-01 | ジィァンスー リースーデェァ ニュー マテリアル カンパニー リミテッド | 高温・高せん断抵抗性を有する高難燃性ハロゲンフリー難燃組成物系及びその使用 |
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| US20200277191A1 (en) | 2020-09-03 |
| CN111201197A (zh) | 2020-05-26 |
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