Classifications

• • 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
  • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
  • C04B24/40—Compounds containing silicon, titanium or zirconium or other organo-metallic compounds; Organo-clays; Organo-inorganic complexes
  • C04B24/42—Organo-silicon compounds

Definitions

• the present invention relates to a method for producing a silica calcium mold. Background technology
• silicon caliper molding used for fire-resistant material a, fire-resistant heat insulating material, and cold insulation material is required to have low heat conduction vehicles.
• products with low bulk density and high strength have been required. Has been produced.
• kitsuki The purpose of this kitsuki is to have a low bulk density, i. Good fire resistance, heat resistance, mechanical strength and dimensional stability.
• An object of the present invention is to provide a molded product of a different type as a covering material, a refractory new heat, or a heat insulating / cooling material.
• calcareous raw materials dispersed in water and siliceous including the calcium hydrate ⁇ 7 obtained by ripening and reacting a concealing agent with ripening.
• Dimethylpolysiloxane obtained by a conversion with an anionic surfactant and Z or a derivative thereof having an induction law are added to the aqueous slurry and mixed. It is easily reached by drying after water molding and drying after steaming.
• the silica calcium water slurry used in the present invention a known method? ! What is obtained is used S That is, the silicic acid hydrate obtained by reacting the silicic acid raw material and the lime raw material separated in water by maturation, preferably having a sedimentation volume of at least / Aqueous slurry containing calcium hydrate can be used.
• the raw materials for silicate are natural products such as diatomaceous earth and silica stone, silicon dioxide, hydrosilicic acid and aluminum hydroxide, which are by-produced in the buco process for the production of wet pheasants. And industrial by-products such as varnish (hereinafter simply referred to as wet varnish varnish) obtained by reacting with aluminum.
• These silica raw materials may be either amorphous or crystalline, but amorphous materials such as diatomaceous earth, silica by-products, silicon dust, etc. have a lower settling volume.
• lime raw material dry lime, slaked rock, and power lime slag can be used.
• Silicofluoride 3 ⁇ 4 material -.. Gomo Le ratio of lime material (CaOZSi0 2) is generally from 7 to Bareru range S or et 3 ⁇ 4 of /.2. These raw materials are dispersed in water at least twice the weight of the solid raw material, and are subjected to a hydrothermal reaction in a conventional manner. An aqueous slurry containing silica calcium Eiwa can be obtained.
• the cane drum cane sham hydrate has been added to the tailor (:-:. F.7T. Taylor), "The Chemistry One-Year-Old Bucement (? .H. C enii str of Cement s) ” ⁇ IS « 2.
• the silica calcium hydrate in the water slurry in the Honki Ming has a sedimentation volume of / rc ⁇ Z or more.
• the sedimentation volume is a value determined by the following equation (I): o
• W is the same as in formula (I) and indicates the total weight of the raw materials.
• the reaction is carried out with stirring, and the reaction is carried out at / J, more preferably at / J to 2 J '(, optimally at / ⁇ to ⁇ 2 It is preferable to carry out the reaction in I ⁇ C. At this time, the reaction system needs to be kept in a liquid state, and the reaction is carried out under pressure.
• the aqueous slurry thus obtained is emulsified with dimethyl siloxane and emulsified with an a-on-based surfactant and the emulsified phenol or siloxane. And mix.
• Dimethyl boloxiloxan and its derivatives are usually «the degree of 2 is. ⁇ / 10 centistix, preferably / 2 ⁇ /. The one with 8 centimeters is used.
• ⁇ 2k (trade name, manufactured by Toray Silicon Co., Ltd., dimethylpolysiloxane), KF— and KF-? ? (The above products are manufactured by Shin-Etsu Chemical Co., Ltd., and are manufactured by Shin-Etsu Chemical Co., Ltd. Resin silicone, methyl carboxypolysiloxane, modified dimethylpolysiloxane having a ⁇ group at both ends ⁇ Nometric siloxane.
• Ryo - is an on-system field ⁇ active agent, wherein - is Ru carboxylic salt that indicated by C00M, scan Honoré phon is shown by the formula -S0 3 M, 3 ⁇ 4 formula -OS0 3 2.1 dihydrogen Style ⁇ and formula ⁇ ? One 0:.: o t
• Divrosin S-2 (trade name, Toho Chemical Industry Co., Ltd., Dehydroavietine Carrier), Pellex OTP , Neolex F--2, Hex NB, Demo L, Lx, WX, Lex No WZ, Elektrostripper -X and Demo P
• the above names are made by Kao Atlas Hoofo, Dials Norehokono, Na-Sulfuric Acid, Dodecinolene Benzens Sodium sodium sulfonate, alkyl naphthalene sodium, sodium naphthalene, sodium naphthalene ⁇ condensate of sodium naphthalene , Borochikylene alkyl ether, sodium and polyoxyethylene quinolene sodium II ..
• Trium Trium, Boloxi Circularity (Korean) and Venezuela Clinoleum (Torium), IOL SD— / 0 (trade name, sodium of Nikko Chemicals Polystyrene-Methylene Copolymer: ⁇ ) and the like.
• the emollination of the present work is based on the above-mentioned dimethylpolynesone or its induction ⁇ /
• the weight part is added and mixed, and emulsification is carried out according to a usual method using an emulsifying machine such as a homomixer, a homogenizer, a co-mill and an ultrasonic II machine. Can be easily obtained.
• an emulsifying machine such as a homomixer, a homogenizer, a co-mill and an ultrasonic II machine. Can be easily obtained.
• et circle sheet Yo emissions of the invention ((CH 3) 2 Mi iO ⁇ 3, ⁇ (CH 3 ) 2 SiO ⁇ 4 such ⁇ filtered off key Sa emissions mono M a a de de sheet le of Emulsion polymerization with the above-mentioned aionic surfactant in the coexistence of a lipophilic solvent such as benzenesulfone can also be obtained.
• SH— ⁇ ? Is marketed as an emulsion of dimethylpolysiloxane or a derivative thereof.
• SM— ⁇ 7 / and SM—7 marks both trade names, manufactured by Toray Silicone Co., Ltd., both of which are dimethinole polysiloxanes)
• S i- ⁇ 1 ⁇ 0 1 ( trade name, Toray sheet re co over emissions Co., Ltd., di main Chi le volume Li Shi b key Sa down both ends 0 K groups modified ⁇ two on- We Ma Le Shi Is also advantageous: use ⁇ 0 ._
• Honkiaki emulsions added to the water-based slurry affects the water repellency of the resulting canola silicate mold, but if the amount is too small, the amount of emulsification will be too small. Since the organic ⁇ (hydrocarbon group) contained in the ion reduces the fire resistance, fire resistance, heat resistance, etc., the solid content (e.g., ⁇
• the mixture of the water slurry and the emulsion thus obtained is subjected to the conventional method of adding “L ⁇ 3 ⁇ 4 ⁇ and then pressurized“ J water molding.
• ⁇ 3 ⁇ 4 Is a slurry, and its strength and E force are usually in the range of JQ ⁇ S0 and / ⁇ ⁇ 200 ⁇ / cd ⁇ , even if it is added in advance.
• Adjustment of the bulk density of the compact is performed by adjusting the strength stroke of the kakero.
• Any well-known reinforcement can be used. For example, asbestos, stones, etc. -Q, etc. -Q Used o Usually, it is added so that 0.1S to i0H is contained in the final molded article.
• the obtained molded body is subjected to water steam curing, so-called autoclave curing, under heat and heat according to a conventional method.
• Silica calcium hydrate can be added to this water-steamed ginger raw material in the case of ⁇ MOI-GENORE, C-SH- (I) or C-S- ⁇ - (I).
• 0 ⁇ / ai is the range g of Q. ft. of the final molded product! ⁇ 2 if you want zonotrite as%
• O? I K ? / CTi C-steam is preferred.
• the transition described above in such an article is usually easy. If transfer is not performed as desired, such cases are extremely rare, but for example, zonotrite may result in crystalline topomolite. In such a case, it is sufficient to increase the steam e or extend the time of steam curing, and if zonotryte is obtained when crystalline tobamolite is desired, the steam is reversed. You can reduce the pressure or shorten the steaming time.
• silica having low bulk density, excellent fire resistance, heat resistance, mechanical strength, and dimensional stability, and uniformly hydrated up to the inside, can be obtained.
• a calcined body can be obtained. The best way to run
• the new surface of the molding is set to be horizontal, and the upper surface of the molding is gently cleaned from the upper side. We measured the angle at which each part was proud.
• Emulsion obtained by milking in a homomixer in the system field E activator / part is molded in terms of non-volatile content in terms of non-volatile content.
• the obtained ⁇ shape was put into the Saito clave by ft, and steam was formed for 7 ⁇ at the steam king / K / cric-and I ⁇ . After drying, molded articles each having a thickness of J mm were obtained.
• the bulk density of these compacts is ⁇ / ⁇ . 2 ZW and S are within the range of ⁇ . ) , Illustration / ⁇
• the method of the present invention has good fire resistance, heat resistance, mechanical strength and dimensional stability, and has a uniform water-repellent silica calcium inside. It is useful as a manufacturing method for molding.

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• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Ceramic Engineering (AREA)
• Inorganic Chemistry (AREA)
• Materials Engineering (AREA)
• Structural Engineering (AREA)
• Organic Chemistry (AREA)
• Curing Cements, Concrete, And Artificial Stone (AREA)
• Silicates, Zeolites, And Molecular Sieves (AREA)

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• 1981
  • 1981-01-20 JP JP666781A patent/JPS57123851A/ja active Granted
  • 1981-12-25 WO PCT/JP1981/000416 patent/WO1982002546A1/ja not_active Ceased

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