JP2006061816A - Hollow fiber membrane module and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance pressure resistance by suppressing the separation of a resin from a housing. <P>SOLUTION: A hollow fiber membrane module is provided with a bundled body 2 bundling a plurality of hollow fiber membranes 1, a resin part for fixing 3 fixing at least one side part of the bundled body 2 with the resin for fixing in a state of opening the end part of the hollow fiber membranes, and a housing 4 jointed with the resin part for fixing 3 to form an inner space inside where a liquid to be treated passes through, and further resins for jointing 8 of the range of 10-60 in Shore A hardness after 10 seconds are installed on joints where the joint surfaces of the resin for fixing 3 with the inner wall of the housing 4 are exposed to the inner space. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a hollow fiber membrane module and a method for producing the same, and more particularly to a hollow fiber membrane module having a high pressure resistance suitable for filtration with repeated pressurization and suction and a method for producing the same.

  The hollow fiber membrane module generally has a structure in which the end portion of the converging body of the hollow fiber membrane is inserted into the housing and the end portion is opened and the space between the hollow fiber membrane and the housing is sealed with resin. And the hollow fiber membrane module is conventionally used for many uses, such as manufacture of aseptic water, drinking water, highly purified water, and air purification. In recent years, in addition to these applications, hollow fiber membrane modules have undergone secondary treatment and tertiary treatment in sewage treatment plants, solid-liquid separation in septic tanks, and solid-liquid separation of SS (suspended material) in industrial wastewater. It is also used for highly polluted water filtration.

In high-contamination water filtration, generally, predetermined treatment water is obtained or the membrane surface of the hollow fiber membrane is washed by repeatedly applying pressure or suction to the opening at the end of the hollow fiber membrane. For this reason, high pressure resistance is required for the hollow fiber membrane module for high-contamination water filtration.
An example of such a hollow fiber membrane module is disclosed in Japanese Patent Laid-Open No. 2003-103146 (Patent Document 1). According to the technique described in this publication, Shore D after 10 seconds in hardness measurement is used as a sealing resin for sealing between the hollow fiber membranes at at least one end of a bundled body in which a large number of hollow fiber membranes are bundled. By using a polyurethane-based resin having a hardness of 60 or more, the pressure resistance performance of the sealing resin is improved.

JP 2003-103146 A

  However, even when the sealing resin itself can be prevented from being damaged by using an appropriate amount and type of sealing agent, the sealing resin and the housing may be peeled off. For example, when the hardness of the sealing resin is increased in order to increase the pressure resistance of the sealing resin, the sealing resin is not easily deformed, and as a result, the sealing resin is easily peeled off in the housing. In particular, when stress is concentrated locally at the boundary portion between the sealing resin and the housing, a peeling start point is likely to occur there, and the peeling of the joint surface between the sealing resin and the housing proceeds, Eventually, the housing part will be destroyed or leaked. Here, the portion where the stress tends to concentrate is, for example, a corner portion formed by the sealing resin and the inner wall of the housing.

  Then, this invention aims at providing the hollow fiber membrane module which can suppress generation | occurrence | production of peeling with resin and a housing, and can improve pressure resistance, and its manufacturing method.

  In order to achieve the above object, the hollow fiber module of the present invention includes a converging body in which a plurality of hollow fiber membranes are bundled, and at least one end of the converging body, with the end of the hollow fiber membrane being opened. A fixing resin portion fixed with a fixing resin, and a fixing resin portion that is bonded to the inner wall of the fixing resin portion and that forms an internal space through which the processing liquid passes. A bonding resin having a Shore A hardness of 10 to 60 degrees in a range of 10 to 60 degrees after 10 seconds is provided in a portion where the joint surface between the housing and the inner wall of the housing is exposed to the internal space.

  According to the hollow fiber membrane module of the present invention configured as described above, the adhesive resin having a Shore A hardness of 10 to 60 after 10 seconds is provided on the joint exposed in the internal space of the housing. As a result, the stress concentration on the joint can be relaxed, the occurrence of peeling between the fixing resin and the housing can be suppressed, and the pressure resistance can be increased. In particular, if the Shore A hardness after 10 seconds of the adhesive resin is 10 degrees or more, sufficient durability can be obtained, and there is no risk of deformation even when used for a long time. On the other hand, if the Shore A hardness after 10 seconds is 60 degrees or less, sufficient elasticity can be obtained, and a sufficient effect for dispersing stress can be exhibited.

In the present invention, preferably, an adhesive resin is interposed in at least a part of the joint surface.
In this way, if the bonding resin is also provided on the joint surface, the occurrence of peeling between the fixing resin and the housing can be more effectively suppressed.

Further, in the present invention, preferably, the hardness of the fixing resin of the fixing resin portion is in the range of 80 to 99 degrees in Shore A hardness after 10 seconds.
Thus, the pressure resistance of the fixing resin part can be increased by increasing the hardness of the fixing resin part. In particular, if the Shore A hardness after 10 seconds is 80 degrees or more, sufficient pressure resistance can be ensured with a smaller amount of resin, and as a result, the amount of fixing resin used can be reduced and the hollow fiber membrane module The cost can be reduced. On the other hand, if the Shore A hardness after 10 seconds is 99 degrees or less, the fixing resin can be prevented from cracking.

  Further, in the method for producing a hollow fiber membrane module of the present invention, at least one end of a bundled body in which a plurality of hollow fiber membranes are bundled is fixed with a resin with the end of the hollow fiber membrane being opened. 10 seconds after the fixing step of forming the fixing resin portion and the inner wall of the housing to which the fixing resin portion is bonded, at the edge of the bonding surface between the fixing resin portion and the inner wall of the housing An application step of applying an adhesive resin having a Shore A hardness of 10 to 60 degrees, and a bonding step of bonding the fixing resin portion to the housing and forming an internal space through which the processing liquid passes. It is characterized by that.

  Thus, according to the manufacturing method of the hollow fiber membrane module of the present invention, since the adhesive resin is applied to the portion that becomes the edge of the joint before the joining step, the result of the joining step is that Adhesive resin can be easily provided at the joint where the joint surface between the housing and the inner wall is exposed to the internal space.

In the present invention, preferably, in the applying step, the adhesive resin is also applied to at least a part of a region of the inner wall of the housing that is to be joined to the fixing resin portion.
Thereby, as a result of a joining process, adhesive resin can be easily interposed in a joined surface.

In the present invention, preferably, in the coating step, a thermosetting resin having a viscosity before and after curing in the range of 100 to 10,000 mPa · s is applied as the adhesive resin.
When such a thermosetting resin is applied, as the resin is gradually cured, the viscosity of the resin increases and deformation and flow occur, so that the unevenness of the application of the resin can be made uniform. As a result, it is possible to prevent a decrease in pressure resistance due to a stress distribution caused by application spots of the adhesive resin.

In particular, if the viscosity of the adhesive resin is 100 mPa · s or more, the applied resin is less likely to sag, the shape of the resin can be easily maintained, and the adhesive resin can be reliably disposed. On the other hand, if the viscosity of the adhesive resin is 10000 mPa · s or less, deformation or flow during the curing of the resin is likely to occur, and the application spots of the resin can be made uniform.
Since the adhesive resin is not yet cured at the time of application, the hardness may not be in the range of 10 to 60 degrees in Shore A hardness after 10 seconds, and the hardness after curing is within that range. I just need it.

  Thus, according to the hollow fiber membrane module and the manufacturing method thereof of the present invention, it is possible to suppress the occurrence of peeling between the resin and the housing, and to improve the pressure resistance.

Hereinafter, embodiments of the hollow fiber membrane module of the present invention will be described with reference to the accompanying drawings.
First, with reference to FIG. 1, the structure of the hollow fiber membrane module of embodiment is demonstrated. FIG. 1 is a schematic perspective view of the hollow fiber membrane module of the embodiment.

As shown in FIG. 1, the hollow fiber membrane module of this embodiment includes a converging body 2 in which a plurality of hollow fiber membranes 1 are bundled, a fixing resin portion 3 in which both ends of the converging body 2 are fixed, and a fixing It is comprised from the housing 4 in which the resin part 3 was engage | inserted.
Hereinafter, the components of the hollow fiber membrane module will be described.

  The material of the hollow fiber membrane 1 is not particularly limited, and examples thereof include polysulfone resins, polyacrylonitrile, cellulose derivatives, polyolefins such as polyethylene and polypropylene, fluorine resins such as polyvinylidene fluoride and polytetrafluoroethylene, Polyamide, polyester, polymethacrylate, polyacrylate and the like can be mentioned. In addition, copolymers of these resins or those having a substituent introduced into a part thereof may be used. Furthermore, what mixed 2 or more types of resin may be used.

  In addition, as long as it is a hollow fiber membrane that can be used as a filtration membrane, its pore diameter, porosity, film thickness, outer diameter and the like are not particularly limited, but for example, the outer diameter is 20 to 2000 μm, the pore diameter Is preferably 0.001 to 5 μm, the porosity is 20 to 90%, and the film thickness is preferably 5 to 300 μm.

  The arrangement direction of the hollow fiber membranes 1 in the converging body 2 is not particularly limited, but it is preferable that the hollow fiber membranes 1 are arranged substantially parallel to the flow direction of the liquid to be treated. In such a case, for example, when the liquid to be treated is a highly contaminated liquid containing a large amount of contaminants, when the contaminants pass between many hollow fiber membranes 1, the flow direction is perpendicular to the flow direction. Since there is no obstacle such as the hollow fiber membrane 1 or the like, there is an effect of reducing the accumulation or constriction of impurities on the hollow fiber membrane 1.

  Furthermore, the arrangement direction of the hollow fiber membranes 1 is preferably such that the length direction of the hollow fiber membranes 1 is the vertical direction, that is, the vertical direction. In such a case, for example, the upward flow direction of the liquid to be treated generated during air bubbling cleaning often used for cleaning the foreign substances and the extending direction of the hollow fiber membrane 1 can be made substantially parallel to each other. There is a synergistic effect with the effect of preventing the accumulation of impurities.

  In addition, as the fixing resin constituting the fixing resin portion 3, an epoxy resin, an unsaturated polyester resin, a polyurethane resin, a silicone filler, various hot melt resins, and the like can be used and can be selected as appropriate. is there.

  Further, the fixing resin portion 3 carries the converging body 2 of the hollow fiber membrane 1 and secures the rigidity of the housing 4 into which the fixing resin is fitted, thereby exhibiting pressure resistance during use. For this reason, it is preferable that the fixing resin portion 3 has a predetermined range of hardness. That is, when the hardness of the fixing resin portion 3 is less than 80 degrees in Shore A hardness after 10 seconds, a large amount of resin is required to maintain pressure resistance, and the cost of the hollow fiber membrane module is increased. It becomes a factor. In addition, when the hardness of the fixing resin portion 3 exceeds 99 degrees in Shore A hardness after 10 seconds, the fixing resin portion 3 itself is easily cracked. Therefore, the hardness of the fixing resin portion 3 is preferably 80 to 99 degrees in Shore A hardness after 10 seconds.

  The housing 4 may be made of any material having mechanical strength and durability, such as polycarbonate, polysulfone, polyolefin, PVC (polyvinyl chloride), acrylic resin, ABS resin, modified PPE (polyphenylene ether), and the like. Can be used. When an incineration treatment is required after use, a hydrocarbon-based resin such as polyolefin that can be completely burned without emitting a toxic gas by combustion is preferable.

Here, with reference to FIG.2 and FIG.3, the shape of the housing 4 of this embodiment is demonstrated. 2 and 3 are cross-sectional views of the housing 4 taken along lines AA and BB in FIG.
The dimensions of each part of the housing 4 in this embodiment are as shown in FIG. 2 in which the width A is 30 mm, the height B is 70 mm, the height C from the step is 50 mm, the height D from the step is 20 mm, the inner step E is 3 mm. Also, the outer length F shown in FIG. 3 is 300 mm, the inner length G is 250 mm, and the inner step H is 3 mm.
As shown in FIG. 3, the inside of the housing 4 communicates with the outside through a passage 41.

  As shown in FIGS. 2 and 3, there is a stepped portion 42 inside the housing 4, and the fixing resin portion 3 is inserted up to the stepped portion 32. As a result, an internal space 5 surrounded by the fixing resin portion 3 and the inner wall of the housing 4 is formed in the housing 4. In this internal space, the end of the hollow fiber membrane 1 is opened, and the treatment liquid passing through the passage 41 passes therethrough.

  Here, an example of the hollow fiber membrane module will be described with reference to FIG. FIG. 4 is a partial cross-sectional view taken along line AA in FIG. In the example shown in FIG. 4, the bonding resin 8 is provided on the joint where the joint surface 6 between the fixing resin portion 3 and the inner wall of the housing 4 is exposed to the internal space, that is, at the corner portion. The adhesive resin 8 has a hardness in the range of 10 to 60 degrees in Shore A hardness after 10 seconds.

  Thereby, it is possible to disperse the stress concentration on the corner portion, and the occurrence of peeling between the fixing resin 5 and the housing 4 can be greatly reduced. As a result, particularly when the fixing resin of the fixing resin portion 3 has a high hardness, the boundary portion between the fixing resin portion 3 and the housing 4 has a depression or the like so as to become a stress concentration point due to the force applied to the inside of the housing 4. Even when there is a singular point, the occurrence of a fracture start point at the boundary between the housing 4 and the fixing resin portion 3 is suppressed, and as a result, peeling at the bonding interface between the fixing resin portion 3 and the housing 4 is achieved. , The destruction of the housing 4 portion, and the occurrence of leakage can be suppressed.

  The material of the adhesive resin 8 is not particularly limited, and for example, a known resin such as a urethane resin, a silicon resin, or an acrylic resin can be used. The material of the adhesive resin 8 is preferably selected according to the environment in which the hollow fiber membrane module is used and the type of liquid to be passed.

Next, another example of the hollow fiber membrane module will be described with reference to FIG. FIG. 5 is a partial cross-sectional view taken along line AA in FIG. In the example shown in FIG. 5, the adhesive resin 8 is interposed not only in the corner portion with the joint, but also on a part of the joint surface between the fixing resin portion 3 and the inner wall of the housing 4. More specifically, the adhesive resin 8 is also provided on the horizontal joint surface of the step portion that follows the corner portion.
As described above, by providing the bonding resin 8 on the joint surface, it is possible to further improve the pressure resistance against the pressure applied to the internal space.

Furthermore, another example of the hollow fiber membrane module will be described with reference to FIG. FIG. 6 is a partial cross-sectional view taken along the line AA of FIG. In the example shown in FIG. 6, the adhesive resin 8 is interposed not only at a certain corner portion of the joint but also on the entire joint surface between the fixing resin portion 3 and the inner wall of the housing. That is, the fixing resin portion 3 and the inner wall of the housing 4 are joined via the adhesive resin 8.
Thus, by providing the bonding resin 8 on the entire bonding surface, the pressure resistance against the pressure applied to the internal space can be further improved.

Next, an embodiment of a method for producing a hollow fiber membrane module of the present invention will be described.
In the manufacturing method of the hollow fiber membrane module of the present embodiment, the hollow fiber membrane module is manufactured through (1) fixing step, (2) coating step, and (3) joining step as follows.

(1) Fixing step In the fixing step, at least one end of the converging body in which a plurality of hollow fiber membranes are bundled is fixed with resin in a state where the end of the hollow fiber membrane is opened, and a fixing resin portion Form.

  As the bundling body 2 of the hollow fiber membrane 1, a method of simply aligning the hollow fiber membranes can be used. Further, as a preferable method from the viewpoint of workability, a hollow fiber membrane is wound in a multi-row around a generally known casserole frame or plate-like material, and a plurality of hollow fiber membrane wound products are obtained. There are a method of obtaining, a method of forming a knitted fabric using a hollow fiber membrane as a weft, or a method of laminating several knitted fabrics to form a laminate. And about these forms, it is preferable to apply a suitable form and processing method to the hollow fiber membrane module used.

  Here, as a form of the hollow fiber membrane bundle in which a plurality of knitted fabrics are laminated, one in which the knitted fabric is folded to an appropriate length without being cut is also included. The number of layers (folding) of these knitted fabrics varies depending on the thickness of the knitted fabric, that is, the thickness of the hollow fiber membrane and the number of hollow yarn membranes used for knitting the knitted fabric. Is preferred.

  Further, the hollow fiber membrane 1 is fixed in the housing 4 with a fixing resin in a state in which the opening surface communicates with the internal space while maintaining the opening surface. As a method for realizing such a state, for example, the end of the hollow fiber membrane 1 is cut and opened in advance, and the fixing resin 5 is injected while the end of the hollow fiber membrane 1 is kept open. There is a way to do it. After the end of the bundle 2 of the hollow fiber membrane 1 whose end is not cut is inserted into the container, the fixing resin is injected into the container so as to cover all the ends of the hollow fiber membrane 1, and solidified. There is also a method of opening the end of the hollow fiber membrane 1 by cutting the fixing resin together with the end of the hollow fiber membrane.

  Further, the viscosity of the fixing resin before solidification is not particularly limited. However, since the fixing resin is easily impregnated between the plurality of hollow fiber membranes 1, the viscosity of the fixing resin before solidification is 5000 mPa. -S or less is preferable, More preferably, it is 3000 mPa * s or less.

Further, in the impregnation of the fixing resin, a method using centrifugal force or air is applied to the hollow fiber membrane bundle so that the fixing resin 5 is sufficiently distributed between the plurality of hollow fiber membranes 1 constituting the hollow fiber membrane bundle. It is more preferable to use a method of opening the hollow fiber membrane bundle by spraying etc.
The method for opening the hollow fiber membrane bundle is not limited to this, and other methods can be used as appropriate. Further, the amount of the fixing resin to be injected is preferably determined appropriately depending on the shape of the housing 4.

(2) Coating process In the coating process, the Shore A hardness after 10 seconds is formed on the inner wall of the housing to which the fixing resin portion is bonded, at the edge of the bonding surface between the fixing resin portion and the inner wall of the housing. Is applied with an adhesive resin in the range of 10 to 60 degrees. More preferably, in the applying step, the adhesive resin is also applied to at least a part of the joint surface. Moreover, it is preferable to apply | coat the thermosetting resin whose resin viscosity before hardening is 100-10000 mPa * s as the resin 8 for adhesion | attachment.

  As described above, the reason why the adhesive resin is applied before the bonding step is that it is difficult to dispose the adhesive resin 8 inside the housing 4 after the fixing resin portion 3 is disposed in the housing 4. In particular, in the case of the housing shape having only the treated water intake port 4, the operation is extremely difficult. In addition, when unevenness of the application of the adhesive resin 8 occurs, stress distribution due to the pressure applied to the inside of the housing 4 occurs during use. As a result, unevenness of the strength of the adhesive resin 8 occurs, and uniform mechanical performance is exhibited. This is because it becomes difficult.

(3) Joining process In the joining process, the fixing resin portion is joined to the housing to form an internal space through which the processing liquid passes. As a result of this joining, the adhesive resin 8 is exposed inside the housing 4 and can be easily disposed at the boundary between the fixing resin portion 7 and the housing 4.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Drawing 7 is a mimetic diagram used for explanation of a manufacturing method of a hollow fiber membrane module of an embodiment.
In Example 1, a hollow fiber membrane module having the cross-sectional structure shown in FIG. 4, that is, a hollow fiber membrane module in which the adhesive resin 8 was provided at the corner and the horizontal part of the step was manufactured as follows.

First, 400 hollow fiber membranes (outer diameter: 2800 μm) made of polyvinylidene fluoride cut to a length of 1000 mm were prepared. Next, a polyurethane resin (manufactured by Nippon Polyurethane, Nipponpol 4224/4403, viscosity at mixing (before solidification): 1000 mP · s, hardness after curing: Shore A hardness 97 degrees after 10 seconds) as a fixing resin, It puts in the 1st container 9 made from polyethylene of length 250mm, width 23mm, and depth 5mm, and also the focusing body 2 of the hollow fiber membrane 1 was immersed in the 1st container 9, and resin was hardened (FIG. 7 ( A)). Then, the bundling body and the cured resin were removed from the first container. The same operation was performed on the other end of the hollow fiber membrane.
And the cured resin part of both ends was cut | disconnected by the length of 30 mm from the edge part, and the bundling body 2 of the hollow fiber membrane 1 which has the resin part 3 for fixing by which the end surface was opened was obtained (FIG.7 (B)).

  Next, prior to disposing the fixing resin portion 3 in the housing 4 (made of polyethylene, length 250 mm, width 23 mm, depth 50 mm) shown in FIGS. 2 and 3, the internal resin shown in FIGS. Adhesive resin (22B manufactured by Bantico, viscosity before curing: 1900 mPa · s, hardness after curing: Shore A hardness of 40 degrees after 10 seconds) is applied quantitatively to the level difference part 42 to the extent that it does not sag using a syringe. Thickened for 1 minute.

  Next, the previous fixing resin portion 3 was placed in the stepped portion 42 in the housing 4 and left for about 12 hours. Thereafter, the above-mentioned polyurethane resin was injected and filled in the housing 4 and between the hollow fiber membranes 1 (FIG. 7C). The same operation was performed on the other end to obtain a hollow fiber membrane module.

  Next, for the pressure resistance test, the hollow fiber membrane of the manufactured hollow fiber membrane module was cut leaving a length of 20 mm, and the membrane surface and the end surface of the cut hollow fiber membrane were urethane resin (Nippon Polyurethane). A hollow fiber membrane module test body was produced that was completely sealed with NIPPORAN 4224/4403). In this hollow fiber membrane module test body, the internal space 5 of the housing 4 is sealed except for the passage 41.

  In performing the pressure resistance test, the internal space 5 of the housing 4 was filled with water with a syringe, and a hose connected to a test pump (T-100 manufactured by Kyowa Corporation) was connected to the passage 31. Then, when water pressure was applied to the internal space 5 of the housing 4 by the test pump, peeling occurred between the housing 4 and the fixing resin portion 3 when the water pressure reached 1.2 MPa.

(Comparative example)
The hollow fiber membrane module test body of the comparative example is the same as the hollow fiber membrane module test body of Example 1 except that no adhesive resin is provided at the step portion of the housing. And when water pressure was applied to the internal space of the housing of the test body of the comparative example, destruction occurred between the housing 4 and the fixing resin portion 3 when the water pressure reached 0.9 MPa.
Therefore, from the comparison between the above example and the comparative example, apart from preventing the sealing resin itself from being damaged, it was possible to suppress the peeling of the housing and the sealing resin and greatly improve the pressure resistance performance. I understand.

  In each embodiment mentioned above, although the example which constituted the present invention on specific conditions was explained, the present invention can perform various change and combination, and is not limited to this. For example, in the above-described embodiment, a resin having a different material from the fixing resin of the fixing resin portion and a softer resin than the fixing resin is used as the bonding resin. However, in the present invention, the fixing resin is bonded. It may also serve as a resin. In that case, the hardness of the fixing resin needs to be in the range of 10 to 60 degrees in Shore A hardness after 10 seconds.

  Further, for example, in the above-described embodiment, the example in which the fixing resin portions are provided at both ends of the converging body 2 of the hollow fiber membrane 1 and the adhesive resin is respectively provided has been described. An adhesive resin may be provided only on one side.

  The hollow fiber membrane module of the present invention can be used for, for example, secondary treatment, tertiary treatment in a sewage treatment plant, solidification in a septic tank, in addition to uses such as production of aseptic water, drinking water, high-purity pure water, and purification of air. It is suitable for use in the treatment of highly polluted water such as liquid separation and solid-liquid separation of SS (suspended material) in industrial wastewater.

It is a schematic perspective view of the hollow fiber membrane module of embodiment of this invention. It is sectional drawing of the housing which comprises the hollow fiber membrane module of embodiment of this invention. It is sectional drawing of the housing which comprises the hollow fiber membrane module of embodiment of this invention. It is an example of the hollow fiber membrane module of embodiment of this invention, and is a fragmentary sectional view along the AA line of FIG. It is another example of the hollow fiber membrane module of embodiment of this invention, and is a fragmentary sectional view along the AA line of FIG. It is another example of the hollow fiber membrane module of embodiment of this invention, and is a fragmentary sectional view along the AA line of FIG. (A)-(C) are the schematic diagrams explaining the manufacturing method of the hollow fiber membrane module of embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hollow fiber membrane 2 Condensing body 3 Fixing resin part 4 Housing 5 Internal space 6 Joining surface 8 Adhesive resin 9 First container 41 Channel 42 Step part

Claims (6)

A converging body in which a plurality of hollow fiber membranes are bundled;
A fixing resin portion fixed with a fixing resin, with at least one end portion of the converging body opened in the end portion of the hollow fiber membrane;
The fixing resin portion is bonded to the inner wall, and includes a housing that forms an internal space through which the processing liquid passes,
The bonding resin between the fixing resin portion and the inner wall of the housing is provided with an adhesive resin in a range of 10 to 60 degrees in Shore A hardness after 10 seconds in a portion exposed to the internal space. Hollow fiber membrane module.   The hollow fiber membrane module according to claim 1, wherein the adhesive resin is interposed in at least a part of the joining surface.   The hollow fiber membrane module according to claim 1 or 2, wherein the hardness of the fixing resin of the fixing resin portion is in the range of 80 to 99 degrees in Shore A hardness after 10 seconds. A fixing step of fixing at least one end of a bundle of bundles of a plurality of hollow fiber membranes with a resin in a state where the end of the hollow fiber membrane is opened, and forming a fixing resin portion;
Out of the inner wall of the housing to which the fixing resin portion is bonded, the portion of the fixing resin portion and the inner wall of the housing that becomes the edge of the bonding surface has a Shore A hardness of 10 to 60 degrees after 10 seconds. An application process for applying an adhesive resin;
Joining the fixing resin part to the housing and forming an internal space through which the processing liquid passes;
A process for producing a hollow fiber membrane module comprising:   5. The method for manufacturing a hollow fiber membrane module according to claim 4, wherein, in the application step, the adhesive resin is also applied to at least a part of the joining surface.   In the said application | coating process, the thermosetting resin of the range of 100-10000 mPa * s of the viscosity before and behind hardening is apply | coated as said adhesive resin, The manufacturing method of the hollow fiber membrane module of Claim 4 or 5 characterized by the above-mentioned. .

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