Epoxy resin composition insoluble substance tester

Abstract

The utility model relates to the technical field of epoxy molding compound testing, and discloses an epoxy resin composition insoluble substance tester, which comprises a base, an outer cylinder arranged on the base, a sealing cover arranged at the top of the outer cylinder, a feeding hole formed in the sealing cover, a filter device detachably mounted in the outer cylinder and comprising a plurality of filter screens, the apertures of the filter screens are different, and the filter screens are sequentially arranged from top to bottom according to the decreasing order of the apertures. According to the tester for the insoluble substances of the epoxy resin composition, a dissolving solvent is poured into the outer barrel through the feeding opening in the sealing cover, the insoluble substances are filtered one by one through the filter screens with different pore sizes, and the insoluble substances with different particle sizes are retained on the different filter screens in the filtering process; in the process, multiple times of filtering can be realized by only feeding once by an operator, so that a plurality of groups of insoluble substances with different particle sizes are detected, the insoluble substance detection efficiency is improved, volatilization of an organic solvent can be reduced by a sealing cover, and the operation safety of the operator is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of epoxy molding compound testing, in particular to an epoxy resin composition insoluble matter tester. Background Art

[0002] Plastic packaging (abbreviated as plastic packaging) usually uses epoxy plastic packaging materials. The plastic packaging process is to extrude the epoxy plastic packaging materials into the mold cavity by transfer molding and embed the semiconductor chip therein, and at the same time cross-link and solidify to form a semiconductor device with a certain structural appearance. With the continuous development of electronic packaging technology, the reliability requirements of plastic packaging devices are getting higher and higher, and the maximum particle size in the melt needs to be required. Too large particle size will affect the degree of packaging and lead to incomplete packaging. In order to evaluate the packaging trend of plastic packaging materials, it is necessary to test its insoluble matter (epoxy plastic packaging material powder usually adds some solid fillers, including but not limited to silica gel, ceramic particles, glass fiber, to increase the mechanical strength, wear resistance and high temperature resistance of the material. These fillers are usually insoluble in common solvents, that is, insoluble matter). Insoluble matter is generally measured by insoluble matter weight, so it is necessary to test the insoluble matter of plastic packaging materials.

[0003] During the insoluble matter detection process, the plastic encapsulation powder is generally dissolved in the organic solvent acetone and stirred to dissolve. After stirring for a specified time, the dissolving solvent is poured into sieves of different mesh sizes one by one, and the insoluble matter filtered by the sieves is weighed. However, the dissolving solvent requires the operator to pour it into multiple sieves in turn for operation, which makes the insoluble matter detection time longer, and the large amount of volatilization of the organic solvent affects the safety of the operator. Utility Model Content

[0004] The utility model aims to provide an epoxy resin composition insoluble matter tester to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an epoxy resin composition insoluble matter tester, comprising: a base, an outer cylinder is arranged on the base, a sealing cover is arranged on the top of the outer cylinder, a feed port is provided on the sealing cover, a filtering device is detachably installed in the outer cylinder, the filtering device comprises a plurality of filter screens, the apertures of the plurality of filter screens are different, and the plurality of filter screens are arranged in descending order of aperture from top to bottom.

[0006] Preferably, a fixing block is fixedly installed in the outer cylinder.

[0007] Preferably, the filter is fixedly mounted with an outer frame.

[0008] Preferably, the outer frame is provided with a groove adapted to the fixing block.

[0009] Preferably, the base is provided with a solvent channel, and the solvent channel is an inwardly inclined funnel structure.

[0010] Preferably, the solvent channel is provided with a discharge port.

[0011] Preferably, the outer cylinder is formed by stacking a plurality of screen cylinders.

[0012] Preferably, a sealing ring is provided on the top of the sieve cylinder.

[0013] Preferably, the sieve cylinder is provided with a lock buckle, and a plurality of the sieve cylinders are connected via the lock buckle.

[0014] Preferably, a filtering device is arranged in each of the sieve cylinders.

[0015] The epoxy resin composition insoluble matter tester has the following beneficial effects:

[0016] 1. The epoxy resin composition insoluble matter tester pours the dissolving solvent into the outer cylinder through the feed port on the sealing cover, and the filter screens with different pore sizes filter the insoluble matter one by one. During the filtering process, the insoluble matter of different particle sizes is retained on different filter screens. In this process, the operator only needs to feed once to achieve multiple filtrations, thereby measuring several groups of insoluble matter of different particle sizes, thereby improving the efficiency of insoluble matter detection.

[0017] 2. In the epoxy resin composition insoluble matter tester, after the dissolved solvent is poured into the outer cylinder, the sealing cover can reduce the volatilization of the organic solvent, thereby improving the operating safety of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of an epoxy resin composition insoluble matter tester provided in an embodiment of the present application;

[0019] Figure 2 An exploded diagram of an epoxy resin composition insoluble matter tester provided in an embodiment of the present application;

[0020] Figure 3 for Figure 2 Cross-sectional view of the middle and outer cylinders;

[0021] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0022] Figure 5 A three-dimensional diagram of an epoxy resin composition insoluble matter tester provided in another embodiment of the present application;

[0023] Figure 6 for Figure 5 Exploded view of the middle and outer cylinders.

[0024] In the figure: 1. outer cylinder; 11. fixing block; 12. screen cylinder; 13. sealing ring; 2. base; 21. solvent channel; 22. discharge port; 3. sealing cover; 31. feed port; 4. filtering device; 41. filter screen; 42. outer frame; 5. lock. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figure 1 As shown, the utility model provides an epoxy resin composition insoluble matter tester, including: a base 2, the base 2 is a triangular bracket structure, a solvent channel 21 is arranged at the center, the solvent channel 21 is an inwardly inclined funnel structure, the solvent channel 21 is provided with a discharge port 22, and the discharge port 22 is connected to the pipeline of the external recovery equipment.

[0027] like Figure 1-Figure 2 As shown, an outer cylinder 1 is arranged on the base 2, a sealing cover 3 is arranged on the top of the outer cylinder 1, and a feed port 31 is opened on the sealing cover 3. A dissolving solvent formed by dissolving the molding compound powder in the organic solvent acetone (epoxy molding compound powder usually adds some solid fillers, including but not limited to silica gel, ceramic particles, glass fiber, to increase the mechanical strength, wear resistance and high temperature resistance of the material, and these fillers are usually insoluble in the organic solvent acetone, i.e., insoluble matter) is fed into the outer cylinder 1 through the feed port 31.

[0028] Specifically, Figure 3-Figure 4 As shown, a plurality of filtering devices 4 are detachably installed in the outer cylinder 1, and the filtering device 4 includes a plurality of filter screens 41, and the apertures of the plurality of filter screens 41 are different, and the plurality of filter screens 41 are arranged in descending order of apertures from top to bottom. After the dissolved solvent fed from the feed port 31 is filtered through the plurality of filter screens 41, the insoluble matter in the dissolved solvent is retained on the filter screens 41, and the particle size of the insoluble matter gradually decreases from top to bottom with the number of layers of the filter screens 41.

[0029] Furthermore, a fixing block 11 is fixedly installed in the outer cylinder 1 , and an outer frame 42 is fixedly installed on the filter screen 41 . The outer frame 42 is provided with a groove adapted to the fixing block 11 .

[0030] In this embodiment, the dissolving solvent is poured into the outer cylinder 1 through the feed port 31 on the sealing cover 3, and the filter screens 41 with different pore sizes filter the insoluble matter one by one. During the filtering process, the insoluble matter of different particle sizes is retained on different filter screens 41, and the dissolving solvent filtered by the filter screens 41 flows into the external recovery equipment through the discharge port 22 for collection. The sealing cover 3 is opened, and the outer frame 42 in the outer cylinder 1 is taken out, and the filter screen 41 and the filtered insoluble matter are taken out together with the outer frame 42, and the weight of the insoluble matter on each layer of the filter screen 41 is weighed.

[0031] It can be understood that during the filtration process, the operator only needs to feed the dissolved solvent once to achieve multiple filtrations, thereby measuring several groups of insoluble matter with different particle sizes, improving the efficiency of insoluble matter detection, and after the dissolved solvent is poured into the outer cylinder 1, the sealing cover 3 can reduce the volatilization of the organic solvent, thereby improving the operating safety of the operator.

[0032] In another embodiment, if Figure 5-Figure 6 As shown, the outer cylinder 1 is formed by stacking a plurality of sieve cylinders 12, each sieve cylinder 12 is provided with a filtering device 4, and a sealing ring 13 is provided on the top of the sieve cylinder 12, so that the stacked adjacent two sieve cylinders 12 are sealed to prevent the organic solvent in the outer cylinder 1 from volatilizing to the outside through the gap between the sieve cylinders 12, and a lock buckle 5 is provided on the side of the sieve cylinder 12, and the plurality of sieve cylinders 12 are connected by the lock buckle 5.

[0033] In this embodiment, each layer of the sieve cylinder 12 is weighed before filtering the dissolved solvent. After the dissolved solvent is filtered, the sieve cylinder 12 is removed and weighed again. The sum of the two weighing data is subtracted to obtain the weight of the insoluble matter. There is no need to remove the filter 41 separately and weigh the insoluble matter, thereby reducing the operating steps and making the entire testing process more convenient.

[0034] Working principle: the dissolved solvent is poured into the outer cylinder 1 through the feed port 31 on the sealing cover 3, and the filter screens 41 with different pore sizes filter the insoluble matter one by one. During the filtering process, the insoluble matter of different particle sizes is retained on different filter screens 41, and the dissolved solvent filtered by the filter screens 41 flows into the external recovery equipment through the discharge port 22 for collection. The sealing cover 3 is opened, and the outer frame 42 in the outer cylinder 1 is taken out, and the filter screen 41 and the filtered insoluble matter are taken out together with the outer frame 42, and the weight of the insoluble matter on each layer of the filter screen 41 is weighed.

[0035] In summary, although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An epoxy resin composition insoluble matter tester, characterized in that: include: A base (2), an outer cylinder (1) is arranged on the base (2), a sealing cover (3) is arranged on the top of the outer cylinder (1), and a feed port (31) is provided on the sealing cover (3); A filtering device (4) is detachably installed in the outer cylinder (1), wherein the filtering device (4) comprises a plurality of filter screens (41), the plurality of filter screens (41) have different apertures, and the plurality of filter screens (41) are arranged in descending order of aperture from top to bottom.

2. The epoxy resin composition insoluble matter tester according to claim 1, characterized in that: A fixing block (11) is fixedly installed inside the outer cylinder (1).

3. An epoxy resin composition insoluble matter tester according to claim 2, characterized in that: The filter screen (41) is fixedly mounted with an outer frame (42).

4. The epoxy resin composition insoluble matter tester according to claim 3, characterized in that: The outer frame (42) is provided with a groove adapted to the fixing block (11).

5. The epoxy resin composition insoluble matter tester according to claim 1, characterized in that: The base (2) is provided with a solvent channel (21), and the solvent channel (21) is an inwardly inclined funnel structure.

6. An epoxy resin composition insoluble matter tester according to claim 5, characterized in that: The solvent channel (21) is provided with a discharge port (22).

7. The epoxy resin composition insoluble matter tester according to claim 1, characterized in that: The outer cylinder (1) is formed by stacking a plurality of screen cylinders (12).

8. An epoxy resin composition insoluble matter tester according to claim 7, characterized in that: A sealing ring (13) is arranged on the top of the sieve cylinder (12).

9. The epoxy resin composition insoluble matter tester according to claim 7, characterized in that: The sieve cylinder (12) is provided with a lock buckle (5), and a plurality of the sieve cylinders (12) are connected via the lock buckle (5).

10. An epoxy resin composition insoluble matter tester according to claim 7, characterized in that: A filtering device (4) is arranged in each of the sieve cylinders (12).

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