JP2008212464A - Adsorbent molded body and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a deodorizing filter securing low pressure loss and high deodorizing performance in the deodorizing filter for use in an air cleaner. <P>SOLUTION: A slurry formed by mixing a microcapsule 5 incorporating multivalent cation, adsorbent, and sodium alginate, is molded into an optional shape and, after the molding, the microcapsule 5 is broken to constitute the adsorbent molded body 1 by cross-linking reaction by the sodium alginate and multivalent cation. This method can provide the deodorizing filter with high deodorizing performance and the low pressure loss and fitted to the design. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a deodorizing filter used in an air purifier that keeps an air environment in a space clean, or a molded body for molding an air passage.

  Conventionally, this type of adsorbent molded body is known as a filter for removing malodorous substances in the air and the like, in which an adsorbent such as activated carbon is molded into a honeycomb or the like with a binder (for example, Patent Documents). 1).

  Hereinafter, the adsorbent molded body will be described with reference to FIG.

  As shown in the figure, the adsorbent molded body 101 is formed by compressing and molding a binder made of activated carbon and a thermoplastic resin, molding a molded body 102 made of a substrate and protrusions, and laminating this molded body, The adsorbent molded body 101 is molded.

Further, as shown in FIG. 11, a honeycomb 103 is formed by extruding a binder made of activated carbon and a thermoplastic resin.
JP 2003-1027 A

  In such a conventional adsorbent molded body, a thermoplastic resin is used as a binder, and the binder surrounds the adsorbent in the adsorbent molded body to inhibit the adsorption of malodorous substances, and the malodor in the adsorbent molded body. There exists a subject of inhibiting the spreading | diffusion of a substance, It is requested | required that the high performance which reduces these bad effects by a binder and removes malodorous substance etc. is requested | required.

  Moreover, in order to remove malodorous substances, etc., it is necessary to increase the ratio of the adsorbent that removes malodorous substances, etc., and in order to increase the contact efficiency between the malodorous substances and the adsorbent, the wall thickness of the adsorbent molded body is reduced. Although it is necessary to make the malodorous substance easily diffused throughout the wall surface by thinning, all of these have the problem of causing a decrease in the strength of the adsorbent molded body, without causing a decrease in the strength of the adsorbent molded body, It is required to ensure high performance for removing malodorous substances and the like.

  In addition, when attaching an additive exhibiting specific adsorption to each odor gas, there is a problem that an additional step of adhering the additive by dipping etc. after molding the adsorbent molded body is necessary. Therefore, simplification of the process is required.

  Further, when an acid such as phosphoric acid is added to adsorb and remove a basic gas such as ammonia, there is a problem that the acid inhibits the cross-linking of sodium alginate. There is a need to provide a time difference in immersion so as not to inhibit the cross-linking of sodium alginate.

  Further, it is required to further increase the strength of the adsorbent molded body.

  In addition, since the viscosity of the adsorbent and binder mixture before molding is high, it is necessary to increase the pressure during compression molding or extrusion molding, and the adsorbent molded body can be molded into an arbitrary shape by injection molding or vacuum mold molding. There is a problem that it is difficult, and in order to simplify the molding equipment and improve durability, molding fluids containing malodorous substances by molding adsorbent moldings at lower pressures, injection molding, and vacuum mold molding For the purpose of design, it is required to mold the adsorbent molded body into an arbitrary shape by lowering the pressure loss during the process, increasing the contact efficiency between the malodorous substance and the adsorbent molded body.

  The present invention solves such a conventional problem, can ensure the performance of removing malodorous substances and the like without reducing the adsorption performance with the binder without causing a decrease in the strength of the adsorbent molded body, compression An object of the present invention is to provide an adsorbent molded body that can form an adsorbent molded body in an arbitrary shape not only by molding or extrusion molding but also by injection molding or vacuum mold molding.

  In order to achieve the above object, the adsorbent molded body of the present invention is formed by molding a slurry in which a microcapsule enclosing a polyvalent cation, an adsorbent, and a sodium alginate dispersed in water are mixed. Alternatively, the wall of the microcapsule is destroyed after molding, and the molded body is formed by a crosslinking reaction with sodium alginate and a polyvalent cation.

  By this means, sodium alginate can be cross-linked, and an adsorbent molded body can be formed with a cross-linked structure of adsorbent particles and sodium alginate, and this cross-linked structure is network-like and gas diffusion is inhibited by the binder. Therefore, an adsorbent molded body that can ensure high performance for removing malodorous substances and the like without causing a decrease in strength of the adsorbent molded body is obtained.

  Another means is constituted by a material that breaks the wall surface of the microcapsule by heating.

  By this means, it is possible to cross-link sodium alginate during molding or after molding, and to mold an adsorbent molded body with a cross-linked structure of adsorbent particles and sodium alginate, so that the diffusion of gas is hardly inhibited by the binder. An adsorbent molded body that can ensure high performance for removing malodorous substances and the like without causing a decrease in strength of the adsorbent molded body is obtained.

  Another means uses hot melt as a material that breaks the wall surface of the microcapsule by heating.

  By this means, an adsorbent molded body that can form an adsorbent molded body in which hot melt melted by heating at the time of molding or after molding adheres the adsorbent particles to further increase the strength of the adsorbent molded body is obtained.

  Another means is that a second microcapsule encapsulating a first microcapsule encapsulating a polyvalent cation, an adsorbent, sodium alginate, and an additive exhibiting specific adsorption to each odor gas as a core material. Is formed, and the wall surface of the microcapsule is destroyed at the time of molding or after molding, and a molded body is formed by a crosslinking reaction with sodium alginate and a polyvalent cation.

  By this means, an additional step of adhering the additive by dipping or the like after molding the adsorbent molded body is unnecessary, and an adsorbent molded body can be obtained that can be simplified by adding already at the time of molding.

  Another means is that the molded body is made of a material that breaks the wall surfaces of the first and second microcapsules by heating.

  As another means, the wall surfaces of the first and second microcapsules use hot melt as a material that is destroyed by heating, and the hot melt melted can increase the strength of the molded body.

  Another means is that the second microcapsule contains phosphoric acid as a core material, and the wall surface of the second microcapsule is compared with the wall surface of the first microcapsule. The material of the wall surface of the microcapsule is combined so as to break after the wall surface of the first microcapsule.

  By this means, an additional step of adhering the additive by dipping or the like after molding the adsorbent molded body is unnecessary, and an adsorbent molded body can be obtained that can be simplified by adding already at the time of molding.

  Further, the other means is composed of a wall surface that is destroyed by heating both the first microcapsule and the second microcapsule, and the wall surface of the first microcapsule is compared with the wall surface of the second microcapsule. By increasing the melting point of the wall surface of the second microcapsule, the second microcapsule is destroyed after the molded body is constructed.

  By this means, an additional step of adhering the additive by dipping or the like after molding the adsorbent molded body is unnecessary, and an adsorbent molded body can be obtained that can be simplified by adding already at the time of molding.

  Another means uses a fibrous material as a reinforcing material of the molded body.

  By this means, an adsorbent molded body capable of molding an adsorbent molded body that further increases the strength of the adsorbent molded body is obtained.

  Another means is that the slurry is molded into an arbitrary shape by injection molding.

  By this means, in order to simplify the molding equipment and improve the durability, it is possible to mold the adsorbent molded body at a lower pressure or to reduce the pressure loss when passing the fluid containing malodorous substances by injection molding. Thus, an adsorbent molded body capable of increasing the contact efficiency between the malodorous substance and the adsorbent molded body and molding the adsorbent molded body into an arbitrary shape for the purpose of design is obtained.

  Another means is a method of manufacturing an adsorbent molded body in which the slurry is poured into a mold, and then the mold is heated to raise the temperature of the slurry to break the wall surface of the microcapsule and perform molding. .

  Another means is to destroy the first microcapsule and form a molded body by a cross-linking reaction with sodium alginate and a polyvalent cation, and then wash with water to remove sodium ions, and then the second microcapsule. It is a manufacturing method of the adsorbent molding which destroys.

  By this means, after forming the adsorbent molded body, impurities such as metal ions remaining in the adsorbent molded body can be washed away with water.

  Another means is that the first microcapsule forms a wall surface with a material destroyed by the destruction method α, and the second microcapsule forms a wall surface with a material destroyed by the destruction method β. This is a method for producing an adsorbent molded body in which the slurry is mixed, the wall surface of the first microcapsule is broken by the breaking method α, and then the wall surface of the second microcapsule is broken by the breaking method β.

  Another means is to mold a slurry in which a microcapsule encapsulating a polyvalent cation, an adsorbent, sodium alginate, an antibacterial agent, and an antifungal agent dispersed in water is mixed. After molding, the wall surface of the microcapsule was destroyed, and the molded body was constituted by a crosslinking reaction with sodium alginate and a polyvalent cation.

  By this means, it is possible to obtain an adsorbent molded body that can impart antibacterial and antifungal effects to the adsorbent molded body and can improve the durability of the cross-linked structure of the plant-derived sodium alginate.

  In addition, other means can enclose an antibacterial agent and a fungicide in a microcapsule to use an organic solvent or a polyvalent cation that inhibits the formation of a crosslinked structure of alginic acid. The range of use of the agent can be expanded.

  Another means is that a slurry in which an adsorbent and sodium alginate are mixed is molded, immersed in a polyvalent cation solution at the time of molding or after molding, and the molded body is formed by a crosslinking reaction between sodium alginate and the polyvalent cation. The adsorbent molded body can be easily molded.

  According to the present invention, sodium alginate can be cross-linked, and the adsorbent molded body can be formed with a cross-linked structure of adsorbent particles and sodium alginate, and the diffusion of gas is hardly inhibited by the binder. It is possible to provide an adsorbent molded body that can ensure high performance for removing malodorous substances and the like without causing a decrease in strength of the body.

  Moreover, the strength of the adsorbent molded body is reduced because it is possible to crosslink sodium alginate and mold the adsorbent molded body with the crosslinked structure of adsorbent particles and sodium alginate, and the gas diffusion is hardly inhibited by the binder. It is possible to provide an adsorbent molded body that can ensure high performance for removing malodorous substances and the like without incurring odor.

  In addition, the pressure loss when passing a fluid containing malodorous substance is lowered, the contact efficiency between the malodorous substance and the adsorbent molded body is increased, and the adsorbent molded body can be molded into an arbitrary shape for design purposes. An adsorbent molded body can be provided.

  Moreover, the adsorbent molded body which can shape | mold an adsorbent molded body with a lower pressure can be provided for the simplification of a shaping | molding apparatus and durability improvement.

  In addition, when attaching an adsorbent exhibiting specific adsorption to each odor gas to the adsorbent molded body, an additional step of adhering the adsorbent by immersion after molding is unnecessary, ensuring high performance for removing malodorous substances and the like. It is possible to provide an adsorbent molded body that can be simplified and the process can be simplified.

  Moreover, a strong adsorbent molded body can be provided.

  In addition, when a plurality of additives exhibiting specific adsorption to each odor gas are attached to the adsorbent molded body, the adsorbent molded body can be adjusted after the molding, thereby simplifying the process. it can.

  The adsorbent molded body according to claim 1 of the present invention is formed by molding a slurry in which a microcapsule encapsulating a polyvalent cation, an adsorbent, and sodium alginate dispersed in water are mixed, and at the time of molding or molding Later, the wall of the microcapsule was destroyed, and a molded body was formed by a cross-linking reaction between sodium alginate and a polyvalent cation. The sodium alginate was cross-linked, and the adsorbent particles, sodium alginate and a polyvalent cation cross-linked structure. Adsorbent molded body can be molded, and this cross-linked structure is network-like and gas diffusion is hardly inhibited by the binder, ensuring the strength of the adsorbent molded body and removing malodorous substances etc. High performance can be secured.

  Moreover, the adsorbent molded body according to claim 2 of the present invention is composed of a material that breaks the wall surface of the microcapsule by heating, and includes a microcapsule enclosing a polyvalent cation, an adsorbent, and sodium alginate. The slurry is mixed and then the microcapsules are destroyed by heating and melting, so that the polyvalent cation diffuses into the molded body, and the adsorbent molded body is molded by the crosslinking reaction between sodium alginate and the polyvalent cation. Have

  The adsorbent molded body according to claim 3 of the present invention uses hot melt as a material that breaks the wall surface of the microcapsule by heating, and the hot melt melted by heating at the time of molding or after molding is the adsorbent. An adsorbent molded body capable of molding an adsorbent molded body that adheres particles and increases the strength of the adsorbent molded body is obtained.

  In addition, the molded adsorbent according to claim 4 of the present invention includes a first microcapsule enclosing a polyvalent cation, an adsorbent, sodium alginate, and an additive exhibiting specific adsorption to each odor gas. The slurry is a mixture of the second microcapsules encapsulated as a material, the wall surface of the microcapsules is destroyed at the time of molding or after molding, and the molded body is constituted by a crosslinking reaction with sodium alginate and polyvalent cations. The additional step of adhering the additive by dipping or the like after the molding of the adsorbent molded body is unnecessary, and an adsorbent molded body that can be simplified can be obtained by adding it already during molding.

  In addition, the adsorbent molded body according to claim 5 of the present invention is formed by a material that breaks the wall surfaces of the first and second microcapsules by heating.

  In the adsorbent molded body according to claim 6 of the present invention, the wall surfaces of the first and second microcapsules use hot melt as a material that is destroyed by heating, and the hot melt melted by heating is molded. Can increase body strength.

  In the adsorbent molded body according to claim 7 of the present invention, the second microcapsule contains phosphoric acid as a core material, and the wall surface of the second microcapsule is compared with the wall surface of the first microcapsule. The wall surface of the second microcapsule is a combination of the material of the wall surface of the microcapsule so that the wall surface of the second microcapsule is destroyed after the wall surface of the first microcapsule. Destroy and diffuse the polyvalent cation into the molded body, mold the adsorbent molded body by the cross-linking reaction between sodium alginate and the polyvalent cation, and then destroy the second microcapsule containing phosphoric acid to phosphoric acid Is diffused in the molded body, and an adsorbent molded body having an adsorption performance obtained by adding specific adsorption to the basic gas is molded.

  Moreover, the adsorbent molded body according to claim 8 of the present invention is constituted by wall surfaces that are destroyed by heating, both of the first microcapsules and the second microcapsules, and the wall surfaces of the first microcapsules and the second microcapsules. Comparing the wall surface of the capsule and increasing the melting point of the wall surface of the second microcapsule, the second microcapsule is destroyed after forming the molded body. The adsorbent molded body can be obtained by simplifying the process by adding the material during the molding.

  Moreover, the adsorbent molded body according to claim 9 of the present invention uses a fibrous material as a reinforcing material of the molded body, and the fibrous material has a crosslinked structure of sodium alginate and a polyvalent cation. Has the effect of increasing the strength.

  Further, the adsorbent molded body according to claim 10 of the present invention is a slurry molded into an arbitrary shape by injection molding, and a crosslinked structure is formed after the molding of the adsorbent molded body. The adsorbent molded body can be molded by pressure.

  The invention according to claim 11 of the present invention is an adsorbent molding in which the mold is heated after the slurry is poured into the mold, thereby raising the temperature of the slurry and destroying the wall surface of the microcapsule. It is a manufacturing method of a body.

  In the invention according to claim 12 of the present invention, the first microcapsule is broken and a molded body is formed by a crosslinking reaction with sodium alginate and a polyvalent cation, and then washed with water to remove sodium ions, This is a method for producing an adsorbent molded body that breaks the second microcapsules. After the adsorbent molded body is molded, impurities such as metal ions remaining in the adsorbent molded body can be washed away with water.

  In the thirteenth aspect of the present invention, the first microcapsule is formed of a wall made of a material that is broken by the breaking method α, and the second microcapsule is a material that is broken by the breaking method β. Production of an adsorbent molded body in which a wall surface is formed, a slurry in which these are mixed is molded, the wall surface of the first microcapsule is broken by the breaking method α, and then the wall surface of the second microcapsule is broken by the breaking method β Is the method.

  The invention according to claim 14 of the present invention is a slurry in which a microcapsule enclosing a polyvalent cation, an adsorbent, sodium alginate, an antibacterial agent, and an antifungal agent dispersed in water are mixed. Molded and destroyed after molding or after molding, the wall of the microcapsule is formed by cross-linking reaction with sodium alginate and polyvalent cation, giving the adsorbent molded body antibacterial and antifungal effects It is possible to obtain an adsorbent molded body that can improve the durability of the cross-linked structure with plant-derived sodium alginate.

  The invention according to claim 15 of the present invention can utilize an organic solvent or a polyvalent cation that inhibits the formation of a crosslinked structure of alginic acid by encapsulating an antibacterial agent and an antifungal agent in a microcapsule. The range of use of antibacterial agents and fungicides can be expanded.

  According to the sixteenth aspect of the present invention, a slurry in which an adsorbent and sodium alginate are mixed is molded, immersed in a polyvalent cation solution at the time of molding or after molding, and the sodium alginate and the polyvalent cation are used. The molded body is formed by a crosslinking reaction, and as a method capable of performing one crosslinking reaction, the adsorbent molded body can be easily molded by dipping in a polyvalent cation solution. The slurry mixed with the adsorbent and sodium alginate is first shaped by a molding method such as injection molding. By immersing this molded body in a tank filled with a polyvalent cation solution, sodium alginate and the polyvalent cation are chemically changed by a crosslinking reaction to form a strong molded body.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
As shown in FIGS. 1 to 4, the activated carbon powder 2a as the adsorbent 2, the aqueous sodium alginate solution 3 that forms a crosslinked structure that becomes a binder after the crosslinking reaction, and the first crosslinking reaction by replacing with sodium alginate sodium. A microcapsule 5 containing a calcium chloride aqueous solution 4 as a polyvalent cation is dispersed with a kneader to prepare a slurry 6, and the slurry 6 is poured into a mold 7 for forming an adsorbent molded body in an arbitrary shape, Thereafter, the mold 7 containing the slurry 6 is heated to break the wall 8 of the microcapsule 5, and calcium ions are dispersed and permeated into the slurry 6.

  In the above configuration, the adsorbent molded body 1 including the activated carbon powder 2a is formed in the cross-linked structure formed by the cross-linking reaction between sodium alginate and calcium ions, and the cross-linked structure between the sodium alginate and calcium ions forms a network-structure binder. For this reason, for example, the diffusion of a gas using a binder that hardly circulates a gas body such as a resin adhesive is hardly inhibited, and the strength of the adsorbent molded body 1 is ensured.

  In the present embodiment, sodium alginate has been described. However, alginate propylene glycol ester may be used, and there is no difference in the effect.

  Moreover, although activated carbon powder was demonstrated as an adsorbent, you may use common adsorbents, such as a zeolite, a silica gel, activated alumina, as an adsorbent.

  In addition, although calcium chloride has been described as the polyvalent cation, calcium hydroxide or other polyvalent cations that form a crosslinked structure with sodium alginate, such as aluminum ions and iron ions, may be used.

  Moreover, although heat is used as a means for breaking the microcapsule, a material that breaks the wall surface of the microcapsule with ultrasonic waves, a material that breaks with an acid, alkali, or organic solvent, or a material that breaks with pressure is used. Also good.

  Microcapsules also use W / O / W emulsions to form thermoplastic resin wall surfaces by evaporating organic solvents, spraying molten thermoplastic resin containing calcium salt with a spray dryer, A microcapsule in which a salt is coated with a thermoplastic resin may be used, and the manufacturing method of the microcapsule is not concerned.

  In addition, the heating of the slurry has been explained by pouring the slurry into the mold and then heating. However, when the slurry starts to be dispersed in the slurry and the slurry becomes an arbitrary shape, the microcapsule breaks. good.

(Embodiment 2)
As shown in FIG. 5, a microcapsule 10 containing a calcium chloride aqueous solution 4 as a polyvalent cation and having a wall 9 formed of hot melt is used. As an adsorbent 2, activated carbon powder 2a, sodium alginate aqueous solution 3 and the above-mentioned Disperse the microcapsules 10 with a kneader to create a slurry 6, flow the slurry 6 into the mold 7, and then heat the mold 7 containing the slurry 6 to break the wall 9 of the microcapsule 10, Calcium ions are dispersed and permeated into the slurry 6.

  In the above configuration, the adsorbent molded body 1 including the activated carbon powder 2a in the crosslinked structure formed by the crosslinking reaction of sodium alginate and calcium ions is configured, and the molten hot melt adheres between the hot melt and between the hot melt and the activated carbon powder 2a. It will be connected and the strength of the adsorbent molded body 1 will be secured.

(Embodiment 3)
As shown in FIG. 6 and FIG. 7, the slurry 6 is prepared by dispersing the microcapsule 5 encapsulating the activated carbon powder 2a, the sodium alginate aqueous solution 3 and the calcium chloride aqueous solution 4 and the microcapsule 12 encapsulating the urea aqueous solution 11 with a kneader. Then, the slurry 6 is poured into the mold 7, and then the mold 7 containing the slurry 6 is heated to break the walls of the microcapsules 5 and 12, and calcium ions and urea are dispersed and permeated into the slurry 6. The

  In the above configuration, the adsorbent molded body 1 including the activated carbon powder 2a in the crosslinked structure of sodium alginate and calcium ions and adhering urea into the activated carbon powder 2a is configured, and the crosslinking reaction between the sodium alginate and calcium ions is performed. The cross-linked structure is a network structure, and the deodorizing ability of the aldehyde is enhanced by specific adsorption of the aldehyde by the Schiff reaction of urea.

  In addition, although urea was used as an additive exhibiting specific adsorption, aniline or ethylene urea may be used, a graft polymerization agent may be used, or an additive exhibiting specific adsorption on other odor components may be used as a microcapsule. The deodorizing effect will be enhanced.

(Embodiment 4)
As shown in FIG. 8, the activated carbon powder 2a, the sodium alginate aqueous solution 3 and the calcium chloride aqueous solution 4 are encapsulated, the first microcapsule 13 having the thermoplastic resin A on the wall, the phosphoric acid is encapsulated, and the thermoplastic resin A Disperse the second microcapsule 14 having the thermoplastic resin B having a high melting point on the wall surface with a kneader to prepare the slurry 6. The slurry 6 is poured into the mold 7, and then the mold 7 containing the slurry 6 is heated. By heating at a temperature not lower than the melting point of the thermoplastic resin A and not higher than the melting point of the thermoplastic resin B, the wall of the first microcapsule 13 is broken and calcium ions are dispersed and penetrated into the slurry 6, and a crosslinked structure of sodium alginate and calcium ions is formed. Once formed, the mold 7 is heated above the melting point of the thermoplastic resin B to break the walls of the second microcapsule 14 and phosphoric acid is molded into the adsorbent. Impregnated in 1, it is affixed to the adsorbent molded body 1.

  In the above configuration, before the cross-linking reaction between sodium alginate and calcium ions occurs, the phosphoric acid and sodium alginate are aggregated to inhibit formation of a water-insoluble cross-linked structure. Therefore, after forming a crosslinked structure with sodium alginate and calcium ions that are insoluble in water first, phosphoric acid is immersed in the adsorbent molded body, and phosphoric acid is attached to the adsorbent molded body, showing specific adsorption to ammonia, and deodorizing effect Will be enhanced.

  In addition, using two types of thermoplastic resins with different melting temperatures, the microcapsules were broken up in order of temperature, but the breakage of the microcapsules was determined by pressure, ultrasonic irradiation, microwave irradiation, acid, The step of destroying the wall material of the microcapsules by applying an alkali or an organic solvent may be performed in order.

  In addition, the wall surfaces of the first and second microcapsules may be used in combination with materials whose wall surfaces are broken by different methods. For example, the first microcapsules are made of a material that can be broken by ultrasonic waves, and the wall surfaces of the second microcapsules are made of a material that can be broken by acid. In this case, the slurry 6 is poured into the mold 7 and then subjected to ultrasonic waves to first destroy the first microcapsules. Thereafter, an adsorbent molded body is obtained by a method of pickling and destroying the second microcapsules.

  Further, the types of microcapsules are not limited to two types, and three or more types may be combined.

  In addition, after the destruction of the microcapsules encapsulating calcium ions, a cross-linking reaction occurs between sodium alginate and calcium ions. At this time, sodium ions are separated from sodium alginate, but this sodium ion and other unwanted substances such as chlorine are adsorbed. If it stays in the pores of the agent and acts as an adsorption inhibitor, after molding the adsorbent molded body, the adsorbent molded body is washed with water to remove sodium ions, and then the other microcapsules are destroyed, Other components exhibiting specific adsorption can be added.

(Embodiment 5)
As shown in FIG. 9, activated carbon powder 2 a, sodium alginate aqueous solution 3, microcapsule 5, and fibrous material 15 are dispersed with a kneader to form slurry 6 as adsorbent 2, and slurry 6 is poured into mold 7. Thereafter, the mold 7 containing the slurry 6 is heated to break the wall 8 of the microcapsule 5, and calcium ions are dispersed and permeated into the slurry 6.

  In the above configuration, the adsorbent molded body 1 including the activated carbon powder 2a is formed in a cross-linked structure formed by a cross-linking reaction between sodium alginate and calcium ions, and the cross-linked structure between the sodium alginate and calcium ions has a network structure and a fibrous material. The fiber material reinforces this cross-linking structure and secures the strength of the adsorbent molded body 1.

(Embodiment 6)
Adsorbent, sodium alginate aqueous solution, microcapsules and kneader are used to create a slurry, the slurry is injection molded, molded into an arbitrary shape, and then the injection molded body is heated to form an arbitrary shape of the adsorbent A molded body can be obtained.

  By this means, the crosslinked structure is formed for the first time after the destruction of the microcapsules, so the slurry viscosity is kept low before that, and the pressure loss when passing the fluid containing malodorous substance is lowered by injection molding, and the adsorption is reduced. The contact efficiency of the agent molded body can be increased, for example, it can be molded into a honeycomb or slit shape, and the adsorbent molded body can be molded into an arbitrary shape for the purpose of design.

  Although it has been described that the adsorbent molded body is molded by injection molding, since the adsorbent molded body can be molded at a lower pressure, the adsorbent molded body can be formed using vacuum mold molding, compression molding, or extrusion molding. May be molded into an arbitrary shape.

  Since an adsorbent molded body of any shape can be molded, a deodorizing filter with a high deodorizing effect and a ventilation path can be configured with low pressure loss, and it can be used for air conditioning equipment with a built-in blower. It can be used in the field of liquid purification such as water.

The perspective view of the adsorption agent fabrication object of a 1st embodiment of the present invention Cross section of the slurry poured into the same formwork Cross section of the microcapsule Diagram showing the internal state of the slurry Sectional drawing of the microcapsule of the 2nd Embodiment of this invention Sectional drawing of the microcapsule of the 3rd Embodiment of this invention Diagram showing the internal state of the slurry The figure which shows the internal state of the slurry of the 4th Embodiment of this invention. The figure which shows the internal state of the slurry of the 5th Embodiment of this invention. Cross section of adsorbent molded body by conventional compression molding Perspective view of honeycomb by extrusion molding

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Adsorbent molding 2 Adsorbent 3 Sodium alginate aqueous solution 4 Calcium chloride aqueous solution 5, 10 Microcapsule 6 Slurry 7 Formwork 8, 9 Wall 11 Urea aqueous solution 12 Microcapsule 13 1st microcapsule 14 2nd microcapsule 15 Fiber Material

Claims (16)

A microcapsule containing a polyvalent cation, an adsorbent, and a slurry of sodium alginate are molded, and the wall of the microcapsule is destroyed at the time of molding or after molding, and a crosslinking reaction with sodium alginate and the polyvalent cation is performed. An adsorbent molded body that can constitute a molded body. The adsorbent molded body according to claim 1, wherein the molded body can be formed of a material that breaks the wall surface of the microcapsule by heating. The adsorbent molded body according to claim 2, wherein the hot melt melted by using hot melt as a material that breaks the wall surface of the microcapsule by heating can increase the strength of the molded body. A slurry is formed by mixing the first microcapsules encapsulating polyvalent cations, the adsorbent, sodium alginate, and the second microcapsules encapsulating the core material with an additive that exhibits specific adsorption to each odor gas. An adsorbent molded body that can destroy the wall surface of the microcapsule at the time of molding or after molding and can form the molded body by a crosslinking reaction with sodium alginate and a polyvalent cation. The adsorbent molded body according to claim 4, wherein the molded body can be formed of a material that breaks the wall surfaces of the first and second microcapsules by heating. The adsorbent molded body according to claim 5, wherein the wall surfaces of the first and second microcapsules use hot melt as a material that is destroyed by heating, whereby the hot melt melted by heating can increase the strength of the molded body. . The second microcapsule encapsulates phosphoric acid as a core, and the wall surface of the second microcapsule is compared with the wall surface of the first microcapsule. The adsorbent molded body according to any one of claims 4 to 6, wherein the materials of the wall surface of the microcapsule are combined so as to break after the wall surface. Both the first microcapsule and the second microcapsule are constituted by wall surfaces that are destroyed by heating. The wall surface of the second microcapsule is compared with the wall surface of the first microcapsule and the wall surface of the second microcapsule. The adsorbent molded body according to claim 7, wherein the second microcapsule is destroyed after the molded body is formed by increasing the melting point. The adsorbent molded body according to any one of claims 1 to 8, wherein the reinforcing material of the adsorbent molded body can be strengthened by using a fibrous material. The adsorbent molded body according to any one of claims 1 to 9, wherein the molded body can be formed by molding the slurry into an arbitrary shape by injection molding. The adsorbent molded body according to any one of claims 2, 3, and 9 is formed by pouring the slurry into the mold and then heating the mold to raise the temperature of the slurry and destroy the wall surface of the microcapsule. A method for producing an adsorbent molded body. The adsorbent molded body according to any one of claims 4 to 8, wherein the first microcapsule is destroyed and the molded body is molded by a crosslinking reaction with sodium alginate and a polyvalent cation, and then washed with water to remove sodium ions. And then, the manufacturing method of the adsorbent molding which destroys a 2nd microcapsule. The adsorbent molded body according to claim 7, wherein the first microcapsule has a wall surface made of a material destroyed by a destruction method α, and the second microcapsule has a wall surface made of a material destroyed by a destruction method β. A method for producing an adsorbent molded body in which a slurry formed and mixed is molded, the wall surface of the first microcapsule is broken by the breaking method α, and then the wall surface of the second microcapsule is broken by the breaking method β. The adsorbent molded body according to any one of claims 1 to 3, wherein the mixed slurry is mixed with an antibacterial agent and an antifungal agent. The second microcapsule contains an antibacterial agent and an antifungal agent as a core material, and the wall surface of the second microcapsule is compared with the wall surface of the first microcapsule. The adsorbent molded body according to any one of claims 4 to 8, wherein the material of the wall surface of the microcapsule is combined so as to be broken after the wall surface of one microcapsule. An adsorbent capable of forming a slurry by mixing an adsorbent and a sodium alginate slurry and immersing it in a polyvalent cation solution at the time of molding or after molding and forming a molded body by a crosslinking reaction between sodium alginate and the polyvalent cation. Molded body.

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