KR101336163B1 - A method for manufacturing resin plate or resin film with micro-balls - Google Patents
A method for manufacturing resin plate or resin film with micro-balls Download PDFInfo
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- KR101336163B1 KR101336163B1 KR1020120114121A KR20120114121A KR101336163B1 KR 101336163 B1 KR101336163 B1 KR 101336163B1 KR 1020120114121 A KR1020120114121 A KR 1020120114121A KR 20120114121 A KR20120114121 A KR 20120114121A KR 101336163 B1 KR101336163 B1 KR 101336163B1
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Abstract
The present invention relates to a method of manufacturing a plate by injecting a resin into a microchannel structure in which a width w and a depth h channel are formed at intervals p on a base plate having a thickness t, wherein w is a plate of the plate. Select the diameter of the microball to be formed on the surface, satisfy the relationship of h≥2w, p = (w + channel wall thickness), the channel wall thickness is selected as the spacing between the balls, the micro It provides a method of manufacturing a plate or film to control the temperature of the channel structure, the temperature of the resin, the pressure of the resin entering the channel so that the ball shape is formed on the surface of the plate at regular intervals.
The present invention has the effect of allowing the formation of a microporous structure on the surface regularly to produce a flat plate or a film having a light scattering effect or a liquid contact property different from the existing product using a resin. The spherical structure thus formed appears as a physical property on the free surface and is not manufactured by artificially reproducing the surface shape of a dynamo die, so that the complex polymer surface structure is easily molded.
Description
The present invention relates to a technique for producing a flat plate or a film in which a ball structure is regularly formed on a surface by using a unique microfluidic phenomenon of a molten resin.
In general, resins may be classified into thermoplastic resins that melt upon application of heat and thermoset resins that heat upon application of heat, depending on their properties. Thermoplastic resin is divided into crystalline resin and amorphous resin, and in the case of crystalline resin, the term 'semicrystalline' is used because the whole is not crystallized and only a part of it is crystallized. Is used in the same sense as crystalline resin. The present invention is applied to a polymer semicrystalline resin (hereinafter referred to as "resin").
The technique of forming a regular structure on the surface of a film or a plate made of a polymer resin is widely used for the purpose of realizing optical properties and controlling the physical properties of the surface. It is common to form various types of patterns on films or flat plates and to apply them to display products. In addition, the surface structure is widely used for the purpose of controlling the hydrophilicity and hydrophobicity or the contact angle when the liquid is applied to the surface.
As a related art related to a manufacturing method for forming a regular structure,
The present invention proposes a technique for producing a flat plate or a film having optical properties or other physical properties not conventionally formed by molding a ball-shaped structure on a surface regularly using the phenomenon observed in
The present invention provides a method for producing an actual film or flat plate by using a phenomenon in which fine pore structures are regularly formed on a surface when molten resin passes through a narrow channel. Therefore, the problem to be solved by the present invention is to propose a method of designing a film or a plate having such a fine ball shape on the surface, a method of properly controlling the size of the formed ball, a method of utilizing in actual film and plate process, and It is to enable practical productive use.
In order to solve the above technical problem, the present invention provides a method of manufacturing a plate by injecting a resin into a microchannel structure in which a channel having a width w and a depth h is formed at an interval p on a base plate having a thickness t. In the channel structure, w is selected as the diameter size of the microball to be formed on the surface of the plate, and satisfies the relationship of h≥2w, p = (w + channel wall thickness), and the channel wall thickness between the balls Selecting at intervals, by controlling the temperature of the micro-channel structure, the temperature of the resin, the pressure of the resin entering into the channel to form a ball shape on the surface of the plate at regular intervals, the resin is a resin melt solidification test The resin melt solidification test is a first step of selecting one of the semicrystalline thermoplastic polymer resins .; A second step of selecting a total of N temperatures (N> 0) including a heat deflection temperature provided by the resin supplier, and initializing the index i = 1; A third step of controlling the temperature of the template for cooling the resin and maintaining the same at the i-th temperature among the temperatures selected in the second step; A fourth step of raising the pellets of resin to a predetermined temperature while the template is open and melting them so that the molten resin is pressed between the plates and cooled to solidify by inserting them between the molds and closing the molds; A fifth step of opening the template after a predetermined time and taking out the solidified resin into the specimen; a sixth step of proceeding to the third step with i = i + 1 if i <N is satisfied and a next step if i = N; A seventh step of observing a total of N specimens to confirm the spherical size of the surface portion, and selecting a minimum temperature among the i-th temperatures at which the spherical diameter grows beyond the microchannel width as the set temperature of the microchannel structure; It includes; wherein the predetermined temperature of the fourth step provides a plate manufacturing method which is the recommended temperature of the molding process provided by the resin supplier.
In addition, the present invention is a method for manufacturing a film by injecting a resin (resin) in a microchannel structure in which the width w, the depth h channel is formed in the interval p to the base plate having a thickness t, w in the microchannel structure Select the diameter of the ball (microball) to be formed on the surface of the plate, satisfies the relationship of h≥2w, p = (w + channel wall thickness), the channel wall thickness is selected as the spacing between the balls, By controlling the temperature of the micro-channel structure, the temperature of the resin, the pressure of the resin entering the channel so that the ball shape is formed on the surface of the film at regular intervals, the resin is selected by the resin melt solidification test The resin melt solidification test may include a first step of selecting one resin among semicrystalline thermoplastic polymer resins; A second step of selecting a total of N temperatures (N> 0) including a heat deflection temperature provided by the resin supplier, and initializing the index i = 1; A third step of controlling the temperature of the template for cooling the resin and maintaining the same at the i-th temperature among the temperatures selected in the second step; A fourth step of raising the pellets of resin to a predetermined temperature while the template is open and melting them so that the molten resin is pressed between the plates and cooled to solidify by inserting them between the molds and closing the molds; A fifth step of opening the template after a predetermined time and taking out the solidified resin into the specimen; a sixth step of proceeding to the third step with i = i + 1 if i <N is satisfied and a next step if i = N; A seventh step of observing a total of N specimens to confirm the spherical size of the surface portion, and selecting a minimum temperature among the i-th temperatures at which the spherical diameter grows beyond the microchannel width as the set temperature of the microchannel structure; It includes; wherein the predetermined temperature of the fourth step provides a film manufacturing method which is the recommended temperature of the molding process provided by the resin supplier.
The present invention has the effect of allowing the formation of a microporous structure on the surface regularly to produce a flat plate or a film having a light scattering effect or a liquid contact property different from the existing product using a resin. The spherical structure thus formed appears as a physical property on the free surface and is not manufactured by artificially reproducing the surface shape of a dynamo die, so that the complex polymer surface structure is easily molded.
In addition, since the polymer film or the flat plate having the existing surface structure is to reproduce the shape shown in the mold, it is necessary to consider the mold release, so that the structure that cannot escape when applied vertically is not restricted (see FIG. 1). In the case of the left side, there was no release), but if the ball structure is formed by utilizing the phenomenon used in the present invention, there is no direct contact with the mold, so the problem does not occur in the mold release as shown on the right side of FIG.
1 is a view for explaining the difficulty of releasing.
2 is a schematic view for explaining that the surface ball structure is formed.
3 is an electron microscope photograph of the molding result when the surface ball structure is formed.
4 is a diagram for explaining Chinese New Year.
5 is a polarized light micrograph of a cross section when a hollow structure is formed.
6 is a polarized light micrograph of a cross section when the formation of a hollow structure fails.
7 is a micrograph in the case of a resin in which no hollow structure can be formed.
8 is a micrograph of the result of molding of one type of crystalline resin.
9 is a photomicrograph of moldings for widths of various dimensions.
10 is a view for explaining a microchannel structure;
11 is a view for explaining a resin melt solidification test.
12 is a flowchart of a process of determining resin and determining a set temperature;
13 shows the principle of hot embossing molding.
14 shows the principle of compression molding.
15 shows the principle of injection molding.
16 shows the principle of roll forming.
17 is a view showing a case in which formation of a ball failed in injection molding.
The present invention uses a microchannel structure to produce a plate with the micropore listed on the surface, the microchannel structure is a microchannel is imprinted on the surface at regular intervals so that the flowable resin can penetrate therebetween. It is a structure. When the molten resin penetrates into the microchannel, it penetrates for a certain distance, but it can not advance further, and the shape of the molten resin appears on the surface. At this time, when the molding is completed, a thin film having a thickness smaller than that of the plate or sheet material having a regular shape of the ball surface can be formed. Since the ball shape appears only along the channel, the size and arrangement of the microporous structure can be adjusted by adjusting the interval and width of the channel arrangement. This is described in more detail later.
Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 2 is a schematic view for explaining the formation of the surface pore structure, showing the flow of polypropylene resin filled in the
In order for the cavity structure to appear, the size of the spherulite appearing on the resin during the molding process should be equal to or larger than the width of the channel. It is a regular crystal formed during the process of solidification of the semicrystalline polymeric resin from the molten state. Figure 4 shows the structure of the Chinese New Year. During the process, the rice grows radially from the nuclei, which is the point where the production of Chinese New Year is started. The final size varies depending on the temperature history during the solidification process. .
5 is a cross-sectional view taken when a hollow structure is formed by a polarizing microscope, in which the microchannel structure having a channel width of 30 μm and the impact resistant polypropylene resin are injection molded. The size of the crystal sphere is greater than or similar to the size of the channel. The crystal growth rate of the resin varies from resin to resin, and the growth of crystals to a size similar to or larger than the channel width depends on the temperature history the resin undergoes during the process. In order to cause this phenomenon, the temperature of the microchannel structure and the resin should be kept high enough to allow sufficient time for the crystal to grow.
FIG. 6 is a photograph taken by a polarization microscope when the formation of the hollow structure fails, and FIG. 7 is taken by a polarization microscope photograph of a cross section of a resin in which the hollow structure cannot be formed. Referring to Figure 6, the center is maintained for a long time at high temperature, but the Chinese New Year appears large, but the cooling is fast on the surface it can be seen that the Chinese New Year did not grow significantly. In this case, no surface structure is formed on the surface, as shown in FIG.
8 shows the results of one type of molding of the crystalline resin in a micrograph. In spite of being a crystalline resin, the crystal size is so small that sphericity cannot be observed. FIG. 9 is a photograph taken from above looking at the molding as in the case of FIG. 7, and as can be seen from the results of testing over the various dimensions shown here, no balls are formed at the width of these dimensions. As shown in FIG. 8, when the spherical crystal is very small or the amorphous resin, as shown in FIG. 9, a phenomenon in which a ball is formed may not occur. In order to cause this phenomenon, it is necessary to use a resin that can grow large in the size of the spout, and to control both the temperature of the microchannel structure and the temperature of the resin appropriately. Too low a crystal grows so large that no pore structure is formed, and too high a flow is too good to fill all the microchannels. By using this property, appropriate conditions should be set for each resin.
10 shows a microchannel structure, which is a microchannel structure periodically implemented on a flat plate. A channel having a width w and a depth h is periodically formed on the base plate having the thickness t with an interval p. The dimension most closely related to the presence or absence of the ball is w, which is the width of the channel. Whether or not the ball is formed depends on the dimensional relationship between w and the pitch. The depth h of the channel is also one of the important dimensions. If it is too shallow, no ball is formed. That is, after the resin is injected into the channel, a distance corresponding to the width is required to start to form the ball. Therefore, h should be set to at least the width w. The interval p sets the interval in which the balls are listed. Therefore, the spacing and width should be set according to the blank layout of the plate surface to be fabricated. Considering these conditions, the geometrical conditions for co-forming are summarized as follows. The microchannel width w is set to the diameter of the hole to be formed on the surface, and a hole having a size similar to the diameter w is formed when the flow advances about the length of w in the channel. The channel spacing p is determined by the intention to place the ball on the surface, and the channel wall must be erected so that the relationship p = (w + channel wall thickness) is established. Since the channel wall thickness is the spacing between the balls, the channel wall thickness must be reduced to fill the surface with as much of the ball as possible.
In order to manufacture a plate using the above-described microchannel structure and resin, resin is injected into the microchannel structure to form micropores on the surface of the plate. For this purpose, the temperature of the microchannel structure, the temperature of the resin, and the pressure of the resin entering the channel (microchannel) are controlled to adjust the fabrication process so that the holes are formed at regular intervals on the surface of the plate.
The molding process includes the following three steps. That is, a first step in which the resin advances before entering the channel, a second step in which the Chinese New Year grows while staying before entering the channel, and a third step in which the resin enters the channel by pressure. Experiments have shown that the ball is formed on the surface of the formed plate only when the diameter size of the sphere in the second step is greater than or equal to the channel width w. Thus, temperature and pressure are controlled to satisfy the molding process conditions. For this purpose, it is necessary to determine the temperature and pressure related to the lunar growth. Since the crystal growth characteristics during resin solidification are not generally disclosed information, it is necessary to perform the resin melt solidification test for each resin beforehand.
For the resin melt solidification test, one of the semicrystalline thermoplastic polymer resins is selected, and it is advantageous in the molding process to select a resin that can grow to a sufficient size according to the cooling conditions. After selecting a resin, a small amount of resin pellets are melted by raising to a predetermined temperature, and then cooled by pressing between temperature controlled flat plates as shown in FIG. The molten resin granules are cooled by varying the plate temperature, and the specimen is prepared. The plate must be equipped with a device for controlling the temperature. The cooling start temperature of the resin is set to the process recommended temperature provided by the supplier of the individual resin. The process recommendation temperature means a molding process recommended temperature, which indicates the temperature at the high temperature state where the original resin is melted, that is, the temperature of the melted initial resin. Injection refers to the temperature of the resin supplied from the injection machine and, in the case of compression, the temperature at which the resin is initially melted. The plate temperature should be set high enough to allow enough time for the city to grow. The test was carried out by setting the temperature at five steps and three steps down to five steps, including the thermal deformation temperature provided by the resin supplier. Based on this, a polarizing microscope photograph of the cross section of the specimen was observed. Make sure that the size has grown to a level similar to the microchannel width and set the temperature to the temperature of the microchannel structure during the molding process. During the forming process, the growth rate of the municipal solid can grow larger as the cooling rate slows down. The cooling rate is controlled by the temperature of the microchannel structure.
FIG. 12 is a flowchart showing a procedure for selecting a resin and determining a set temperature of a microchannel structure. Referring to FIG. 12, this process includes a first step (S1 step) of selecting one of the semi-crystalline thermoplastic polymer resins, a total of N including the heat deformation temperature provided by the resin supplier. A second step (step S2) of selecting a temperature of 0) and initializing it to the index i = 1, and controlling a temperature of the resin cooling template to maintain a constant temperature at the i th temperature among the temperatures selected in the second step. Step (S3), in the state that the template is open, the resin granules are raised to a certain temperature (recommended molding process provided by the resin supplier), melted, placed between the plates, and the plates are closed, and the molten resin is pressed between the plates and cooled. 4th step (S4 step) to be solidified, and a fifth step (S5 step) of opening a template after a predetermined time and taking out the solidified resin as a specimen, i = i + 1 when i <N is satisfied. Proceed to step 3, and if i = N In the sixth and seventh steps (S6, S7) proceeding to the system, a total of N specimens were observed to check the spherical size of the surface portion, and among the i-th temperatures where the spherical diameter grew beyond the microchannel width. Step 8 (step S8) of selecting the minimum temperature as the set temperature of the microchannel structure, and melting the resin to the molding process recommended temperature provided by the resin supplier while the microchannel structure is controlled to the set temperature of the eighth step. To perform the molding process (S9 step). If no specimens satisfying the conditions are found in step 8 of the above procedure, the total temperature of N temperature ranges is increased by 45 degrees and retested to determine the set temperature of the microchannel structure. If no additional specimen is found in step 8 that meets the requirements, the resin selection step should be restarted. Also, in the actual forming process, a microstructure formed by applying the set temperature of the microchannel structure determined above can be confirmed through a microscope photograph, and the temperature can be adjusted again. In other words, if the size of the new building is formed according to the target, the molding is continued under the current condition. If the size of the building is smaller than the target, the set temperature of the micro-channel structure is increased by 2.5 degrees. The microchannel structure is formed by lowering the set temperature by 2.5 degrees. The temperature control for the microchannel structure can be simply installed using a conventional commercialized temperature controller, a sensor and a heating device, and the operation is not complicated, so a description thereof will be omitted.
In order to form a hole on the surface of the plate, the pressure of the resin entering the microchannel along with the temperature is important. That is, the degree of filling into the microchannel is controlled by the pressure. The filling of the resin into the channel does not greatly affect the speed before the channel entry. When overcharged, the ball is completely pressed against the wall to form only the channel shape. During the molding process, the pressure of the resin before entering the channel is adjusted by trial and error. The result of the molding is confirmed with a microscope to determine the degree of filling of the resin into the microchannel. If the degree of filling is higher than the target, the pressure is lowered. For example, in the case of injection molding, the pressure after the speed / pressure switching of the injection molding machine, the clamping force in the case of compression molding and hot embossing, and the pressing force of the roll in case of roll molding. The pressure after the speed / pressure switching of the injection machine controls the filling speed in the initial stage of charging when driving the injection machine. When the pressure inside the mold rises while the process is proceeding, And the pressure set in the process thereafter. The clamping force means that the clamping force acts on the both sides of the mold as a force to hold the mold in a closed state while overcoming the internal pressure. A method for confirming the degree of resin filling into the microchannel includes checking the charge length.
Since the difference between the plate and the film is a difference in thickness, it is possible to design a thin thickness, or to make a film by stretching after molding. Therefore, the above-described manufacturing method can be equally used as a method of manufacturing a plate or a film.
Now, based on the above, we will explain how the actual molding process takes place. The
The molding process can be a continuous molding process using a template or a mold and a film or a sheet material extruded by a press. Figure 13 shows the process of hot embossing molding in a hot press using a pre-made film or plate. The figure on the left shows the state before molding in which the microchannel structure is mounted on the lower plate of the hot press and the film is placed between the upper plate and the lower plate. As shown in the figure on the right, during the forming process, the upper mold is lowered and the film or plate is pressurized and formed in the hot state. FIG. 14 is a compression molding method in which the left picture is a state in which the microchannel structure is mounted on the lower mold of the mold and the preheated material is ready to be supplied between the molds. The resin is filled between channels while spreading by pressure. 15 is a case of injection, and as shown in the figure on the left, the microchannel structure is mounted on the movable side (horizontal basis) of the injection mold before molding. When the resin is injected through the fixed side, the resin is supplied and charged as shown in the right figure. FIG. 16 shows a case in which roll forming is used to form a micro channel structure on a roll, and a film or a plate is fed between the plate base and continuously formed.
In all molding processes, pressure and temperature control are very important, and the temperature should be controlled so that the temperature of the microchannel structure and the temperature of the template, roll, and mold in which it is mounted are basically the same. The pressure is controlled by the pressure transferred to the microchannel, regardless of the type of process, but the control of pressure is different depending on the type of process. In the case of hot embossing, compression molding, and roll forming, the pressure to be delivered must be controlled by controlling the pressing force. In the case of injection, charging can not be controlled at the molding speed, but injection pressure and holding pressure can be directly controlled in the injection molding machine. Figure 17 shows the results of the injection test, the case of the top micro-channel is completely filled and the shape of the ball can not be confirmed, the middle micro-channel is filled with the filling is continued almost after the ball is formed, so the pressure is almost filled If you need to lower. The bottommost case is similar to the topmost case, but a general under molding occurs in which one edge is not filled. As in the case of Fig. 17, even if a tool set is formed when the pressure is excessive, since the shape disappears while the filling continues, the pressure must be determined by a trial and error method as described above.
100: Microchannel structure
110: base of the molding
120: pattern part of the molding
130: Microchannel
140: Resin
150:
160: microporous structure formed at the flow front
170: bottom surface of the microchannel structure
Claims (11)
In the microchannel structure
w is selected as the diameter of the microball to be formed on the surface of the plate,
h > = 2w, p = (w + channel wall thickness)
Wherein the channel wall thickness is selected as the spacing between the holes,
By controlling the temperature of the micro-channel structure, the temperature of the resin, the pressure of the resin entering the channel to form a ball shape on the surface of the plate at regular intervals,
The resin is a resin selected through a resin melt solidification test,
The resin melt solidification test
A first step of selecting one of the semicrystalline thermoplastic polymer resins;
A second step of selecting a total of N temperatures (N> 0) including a heat deflection temperature provided by the resin supplier, and initializing the index i = 1;
A third step of controlling the temperature of the template for cooling the resin and maintaining the same at the i-th temperature among the temperatures selected in the second step;
A fourth step of raising the pellets of resin to a predetermined temperature while the template is open and melting them so that the molten resin is pressed between the plates and cooled to solidify by inserting them between the molds and closing the molds;
A fifth step of opening the template after a predetermined time and taking out the solidified resin into the specimen;
a sixth step of proceeding to the third step with i = i + 1 if i <N is satisfied and a next step if i = N;
A seventh step of observing a total of N specimens to confirm the spherical size of the surface portion, and selecting a minimum temperature among the i-th temperatures at which the spherical diameter grows beyond the microchannel width as the set temperature of the microchannel structure; ;
Including;
The predetermined temperature of the fourth step is a plate manufacturing method recommended temperature provided by the resin supplier.
The plate manufacturing method includes a first step of advancing the resin before entering the channel, a second step of growing spherulite while remaining before entering the channel, and a third step of entering the resin into the channel by the pressure A fabrication process comprising a step,
And controlling the temperature of the microchannel structure, the temperature of the resin, and the pressure of the resin entering the channel such that the diameter of the sphere in the second step is greater than or equal to the channel width w.
N temperature of the second step is a plate manufacturing to select a total of nine temperatures by selecting the temperature of five steps up, three steps down at intervals of 5 degrees based on the heat deformation temperature provided by the resin supplier Way.
If no specimens satisfying the conditions are found in the seventh step, a total of N temperature ranges are increased by 45 degrees, and retesting is performed from the third step to determine the set temperature of the microchannel structure.
And if the specimen satisfying the condition is not found even in the retest, starting from the resin selection step of the first step and determining the set temperature of the microchannel structure.
In the forming process, the well-formed well formed by applying the set temperature of the micro-channel structure determined in the seventh step is confirmed through a micrograph, and when the size of the well is smaller than the target, the set temperature of the micro-channel structure is increased by 2.5 degrees. And, if the size of the Chinese New Year is larger than the target plate manufacturing method for molding by lowering the set temperature of the micro-channel structure by 2.5 degrees.
And performing a molding process by melting the resin to a molding process recommendation temperature provided by a resin supplier while the microchannel structure is controlled to the set temperature determined in the seventh step.
The pressure of the resin entering the channel
Checking the result of the molding to determine the degree of filling of the resin into the microchannel, adjusting the trial and error to lower the pressure if the degree of filling is higher than the target, and increase the pressure when the degree of filling is lower than the target,
Injection molding is controlled by the pressure after the speed / pressure change of the injection molding machine, the clamping force in case of compression molding and hot embossing, and the pressing force of the roll in case of roll molding,
The method of determining the degree of filling the resin into the micro-channel includes determining the filling length.
The plate is produced by any one of the molding method selected from injection molding, compression molding, extrusion molding, hot embossing molding, roll molding.
In the microchannel structure
w is selected as the diameter of the microball to be formed on the surface of the plate,
h > = 2w, p = (w + channel wall thickness)
Wherein the channel wall thickness is selected as the spacing between the holes,
By controlling the temperature of the micro-channel structure, the temperature of the resin, the pressure of the resin entering into the channel to form a ball shape on the surface of the film at regular intervals,
The resin is a resin selected through a resin melt solidification test,
The resin melt solidification test
A first step of selecting one of the semicrystalline thermoplastic polymer resins;
A second step of selecting a total of N temperatures (N> 0) including a heat deflection temperature provided by the resin supplier, and initializing the index i = 1;
A third step of controlling the temperature of the template for cooling the resin and maintaining the same at the i-th temperature among the temperatures selected in the second step;
A fourth step of raising the pellets of resin to a predetermined temperature while the template is open and melting them so that the molten resin is pressed between the plates and cooled to solidify by inserting them between the molds and closing the molds;
A fifth step of opening the template after a predetermined time and taking out the solidified resin into the specimen;
a sixth step of proceeding to the third step with i = i + 1 if i <N is satisfied and a next step if i = N;
A seventh step of observing a total of N specimens to confirm the spherical size of the surface portion, and selecting a minimum temperature among the i-th temperatures at which the spherical diameter grows beyond the microchannel width as the set temperature of the microchannel structure; ;
Including;
The predetermined temperature of the fourth step is a film manufacturing method recommended temperature provided by the resin supplier.
The film manufacturing method includes a first step of advancing the resin before entering the channel, a second step of growing spherulite while remaining before entering the channel, and a third step of entering the resin into the channel by the pressure A fabrication process comprising a step,
And controlling the temperature of the microchannel structure, the temperature of the resin, and the pressure of the resin entering into the channel such that the diameter of the sphere in the second step is greater than or equal to the channel width w.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020120114121A KR101336163B1 (en) | 2012-10-15 | 2012-10-15 | A method for manufacturing resin plate or resin film with micro-balls |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020120114121A KR101336163B1 (en) | 2012-10-15 | 2012-10-15 | A method for manufacturing resin plate or resin film with micro-balls |
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| KR101336163B1 true KR101336163B1 (en) | 2013-12-03 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4520166B2 (en) * | 2004-02-02 | 2010-08-04 | 独立行政法人農業・食品産業技術総合研究機構 | Resin microchannel substrate and manufacturing method thereof |
| US20100273331A1 (en) | 2006-07-05 | 2010-10-28 | National Central University | Method of fabricating a nano/micro structure |
| KR20110102654A (en) * | 2010-03-11 | 2011-09-19 | 서울대학교산학협력단 | The method of manufacturing a structure with micro-channels and the structure using the same |
-
2012
- 2012-10-15 KR KR1020120114121A patent/KR101336163B1/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4520166B2 (en) * | 2004-02-02 | 2010-08-04 | 独立行政法人農業・食品産業技術総合研究機構 | Resin microchannel substrate and manufacturing method thereof |
| US20100273331A1 (en) | 2006-07-05 | 2010-10-28 | National Central University | Method of fabricating a nano/micro structure |
| KR20110102654A (en) * | 2010-03-11 | 2011-09-19 | 서울대학교산학협력단 | The method of manufacturing a structure with micro-channels and the structure using the same |
Non-Patent Citations (2)
| Title |
|---|
| Society of Plastics Engineers, 10.1002/spepro.002667 (2010) * |
| Society of Plastics Engineers, 10.1002/spepro.002667 (2010)* |
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