KR20080021936A - Composition of the compound of polarization box which has the function of anti-frictional electricity, and manufacture method thereof - Google Patents

Abstract

An internal addition type polymer resin composition is provided to offer a polarization box capable of conveying a large amount of films easily while suppressing frictional electricity or vibrations generated during transportation. An internal addition type polymer resin composition having a conductive material contained in thermoplastic resins is prepared by the steps of: charging 99.5-75wt% of thermoplastic resins, a conductive material, and a surfactant into an extruder, wherein the conductive material is used in an amount of 0.5-25wt%; and high-temperature extruding the materials from the extruder at 150-350 ‹C to prepare resin pellets. A main resin in the thermoplastic resins is polypropylene, acrylonitrile-butadiene-styrene resin, polybutylene terephthalate, polyethylene terephthalate, polycarbonate, polyethylene, or polystyrene, or a blend of two or more. The conductive material is at least one selected from indium tin oxide, polyaniline, polyethylenedioxythiophene, polypyrrole, polythiophene, poly(p-phenylene), polyacetylene, poly(p-phenylene vinylene), polythienylene vinylene, polyisothianaphthene, and poly(p-phenylenesulfide).

Description

Composition of the compound of polarization box which has the function of anti-frictional electricity, and manufacture method

Figure 1 is a model of the pole box made of a conductive coating PC according to the present invention.

Figure 2 is a model of the pole box made of an internal addition type conductive polymer according to the present invention.

Figure 3 is a schematic view of the easy opening and closing the human face prepared by the present invention.

Figure 4 is a photograph of the easy opening and closing the human face prepared by the present invention.

5 is a front view of the pole box manufactured according to the present invention.

Figure 6 is a film fixing device for an LCD made of an internal addition type polymer according to the present invention.

Figure 7 is a film fixing device for the LCD is made of a PC coated with a conductive material according to the present invention.

Figure 8 is a photograph showing a method for measuring sealing according to the present invention.

9 is an internal groove rib produced according to the present invention.

10 is a carrying handle of the film adjusting device for LCD manufactured by the present invention.

11 is a fixed sus plate and fixing screw invented according to the present invention.

12 is a top box structure of the pole box invented by the present invention.

Figure 13 is a state in which the film fixing device for LCD in the pole box invented by the present invention.

Figure 14 is an explanatory view of using the film fixing device for LCD invented according to the present invention.

Figure 15 is a locking hole and the locking projection mounting state in the lock cover invented by the present invention.

Figure 16 is a change in position of the lock cover invented by the present invention.

17 is a frictional charge measurement method according to the invention produced by the present invention.

Explanation of symbols on main parts of drawing

1: Pole box with anti-friction function according to the invention.

2: bottom box.

21: Film fixing device seating groove for LCD.

22: Cassette magazine anti-shake rib.

23: Human face for easy opening and closing.

24: Handle of lower box.

3: top box.

31: Rib of honeycomb structure.

32: Direction recognition surface for easy opening and closing.

33: Anti-slip rib.

4: Film holder for LCD.

40: cassette magazine

41a: movable left fixed plate 1.

41b: movable left fixed plate 2.

42a: movable right fixed plate 1.

42b: movable right fixed plate 2.

43: Removable postfixed plate.

44: Fixed sus (stainless steel) plate.

44a: Fixing sus plate fixing groove.

4a: Movable fixing plate lever.

441a: set screw for fixing sus plate 1.

441b: fixed sus plate set screw 2.

45: The moving path.

46: Carry handle of LCD film holder.

51: packing rubber 1.

52: Packing rubber 2.

6: locking hole.

7: Locking protrusion.

8: Locking cover.

9: screw.

In the present invention, when storing or transporting a film for an LCD (Liquid Crystal Display), a large amount of film is conveniently and safely stored and transported smoothly while suppressing shaking or frictional electricity generated during transportation or movement by means of transportation. The present invention relates to a compound composition of a pole box and a method for producing the same.

When the pole box with antistatic function manufactured as described above is used, the LCD film accommodated in the box is free from shaking of the load during transportation or movement after loading, and is limited by the conventional fixed terminal in the production line using the LCD film. Although applicable to the production line, the present invention has increased the compatibility and the phenomenon that the surrounding foreign matter adheres to the surface of the load contained in the box by the frictional electricity and the environment which may be caused by the shaking of the internal contents during use or movement. It has the advantage of providing the user with a clean product by preventing it in advance. In particular, electronic components supplied to electric and electronic companies are providers of the cause of defects of final products by static electricity, and static electricity may cause serious problems as follows. It is considered to be the cause of failure due to disconnection due to generated voltage (hundreds of thousands of V / sec), malfunction of electronic devices due to static electricity, and defects caused by foreign matter adhesion.

Therefore, the present invention has been invented to have a feature that can prevent damage to the load or adhesion of foreign matters by the antistatic function of the pole box itself in an environment where transportation or static electricity is easily generated.

Looking at the polebox technology or products developed in the past,

Fold box has no technology and products related to the problem related to the elimination of static electricity that may occur in the contents loaded in the box.

1) Although there is a box type similar to an airtight container, when static electricity is generated when the electronic parts or products sensitive to static electricity are generated and moved, there is a fatal disadvantage that cannot prevent the damage of the contained contents.

2) And the square box of antistatic treatment is for the product without cover or with cover, and the product without cover is the open upper space.In the environment where yellow dust and pollen occur frequently, It is inappropriate to use the container of the required electronic parts, and even if the cover is equipped with a hinge or a hinge, or even a simple cover, it is convenient for users to use in the production line and the static electricity is generated as well as foreign materials are introduced due to the shaking of the cover. Due to the disadvantages and the instability of the sealing is a cause of the stability of the product due to the penetration of moisture into the interior.

Therefore, the contents stored in the pole box developed and invented by the previous technology or product have a high possibility of frictional charging (electrostatic charge) due to shaking during transportation. That is, there is a phenomenon in which static electricity is generated by separation and rearrangement of charges due to friction or movement of contact positions between two objects due to charging by friction. For example, electronic products such as TVs use electricity and generate electrostatic attraction (electrostatic or electric and magnetic fields), which are stabilized by electrostatic bonding with surrounding dust. Therefore, it is known that dust adheres well when an electric field is generated. According to the literature, the concentration of aerosols by electric fields (electrostatics) is due to the polarization force but is actually proportional to the size of the surrounding aerosols, which is effective only for large aerosols, but with very small particles in the nanometer range. For aerosols, another mechanism has been reported to work with electric fields (electrostatics). In other words, very small aerosols usually have electrons and because of their very small size, they have a great mobility in the electric field. So these aerosols are concentrated in static electricity (electric field). The conclusions made by this document are: "The concentration of aerosols in the air can be explained on the basis of basic physics," and "If aerosols contain carcinogens that we know or are likely to have. The relationship between exposure to electric fields (electrostatics) and the risk of cancer. " In this case, if static electricity is generated in the contents stored in the box while moving, very fine foreign matter (aerosol) may adhere to the product, which may act as a defect of the final product, and such fine dust is not easy to remove. However, existing products are mainly made of plastic products and are not subjected to electrostatic discharge (ESD) treatment, which has serious problems. In the case of the case of the foreign matter attached to the surface of the product there was a problem leading to the loss of the manufacturer due to aesthetic appearance.

The present invention has been made to solve the problems of the prior art as described above, in the storage and transport of the film for the LCD, a large amount of film is conveniently and safely stored and stored during transportation or movement by means of transportation It is an object of the present invention to provide a compound composition and a method of manufacturing the same that can be carried smoothly while suppressing shaking or triboelectricity, and can provide a superior product in terms of impact strength.

The present invention is to prevent the accumulation of foreign matter on the surface of the load resulting from the damage of the product due to the shaking between objects, the generation of static electricity to prevent static electricity (electrostatic) generated in the load contained in the pole box of the present invention And solve the conventional problem by making it possible to improve the electrostatic environment of the pole box.

Accordingly, in the present invention, in the manufacture of a pole box, an internally-type polymer resin (hereinafter, referred to as an internally-type polymer resin) is prepared by adding a conductive material to the inside and the surface thereof. It is made of a compound composition that can be manufactured to have a resistance of about 10 ⁶ ~ 10 ¹⁰ Ω / cm ² , to prevent the phenomenon that the charged foreign matter sticks to the storage load by the present invention by having an antistatic function In addition, it is possible to prevent the phenomenon that the charged foreign matter sticks to the load does not fall well, even if the foreign matter clings to the contents to provide a product that is invented to be easily removed.

And yet another object of the present invention has an electrostatic function, but also excellent in terms of impact strength is difficult to damage, excellent sealing properties to prevent the inflow of moisture to the outside, and provide the operator with easy opening and closing when working the pole box It is another object of the present invention to do so.

In order to achieve the above object, there is provided a compound composition of an internal addition type polymer resin material containing a conductive material in a thermoplastic resin.

Resin used as a main component of the thermoplastic resin is polypropylene (PP), acrylonitrile-butadiene-styrene resin (ABS), polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polycarbonate (PC), Polyethylene (PE) and polystyrene (PS) are used. The resin has also been used by blending two or more components.

The thermoplastic resin is used in an amount of 99.5 to 75% by weight, preferably 99.5 to 90% by weight based on the total weight of the resin composition. If the amount of the thermoplastic resin is less than 75% by weight, the workability is poor and mechanical properties cannot be maintained. Fabrication of a strong molded article is difficult, and the conductivity is lowered at 99.5% by weight or more.

The main component of the conductive material is; Indium Tin Oxide (ITO), 1 selected from Poltaniline, Polyethylenedioxythiophene, Polypyrole, Polythiophene, Poly (p-phenylene), Polyacetylene, Poly (p-phenylene vinylene), Polythienylene vinylene, Polyisothianaphyhene, Poly (p-phenylene sulfide) Used for more than one species; As the surfactant, quaternary ammonium-type cationic surfactants, trimethyl ammonium ethoxide, trimethyl ammonium butoxide, trimethyl ammonium phenoxide, trimethyl ammonium P-chlorophenoxide, and trimethyl ammonium lauoxide which are selected as antistatic agents are selected. Cationic surfactants; and (3-lauramidopropyl) trimethylammonium methyl sulfate, an anionic surfactant; anionic surfactants such as carbonic acid type, sulfate ester type, sulfonate, phosphate ester type; alkyltrimethylammonium chloride, di-chloride Cationic surfactants such as alkylmethylammonium, benzalkonium chloride; amphoteric surfactants such as alkyldimethylaminoacetic acid betaine, alkylamidedimethylaminoacetic acid betaine, 2-alkyl-N-carboxy-N-hydroxyimidazoliniumbetaine Polyoxyethylene type, polyhydric alcohol ester type, ethylene oxide propylene oxide At least one selected from nonionic surfactants such as block copolymers; natural surfactants such as lecithin; and polymeric surfactants.

And the amount of the conductive material for the antistatic function pursued in the present invention is 0.5 to 25% by weight, preferably 0.5 to 10% by weight.

The internal additive-type polymer resin used in the manufacture of the pole box 1 having an anti-friction function according to the present invention is mixed with each of the above components, or each of the components of the compounded pelletized compound using an extruder at 150 to 350 ° C. It is made of resin.

According to the required characteristics of each product, the internally-type polymer resin thus formed is provided as a desired final product by press working and extrusion molding, in particular injection molding.

In addition, according to the present invention, the pole box made of a high-impact type polymer resin is excellent in wear resistance and has the ability to prevent semi-permanent triboelectricity due to the internally-resistant type, the translucent state of the load contained in the pole box can be confirmed from the outside Have

The pole box (1), invented by applying an internally-type polymer resin, is a product that provides an antistatic function and quickly removes static electricity (friction electricity) that can be generated during transportation of stored loads. It is invented to prevent damage to the parts used in the product.

And to solve the problem caused by the adhesion of foreign matter by the triboelectric (electrostatic),

In the present invention, a metal sphere theory is modeled as a method for easily removing the foreign matter even if the foreign matter adheres to the content by a mechanism that prevents the charged substance from sticking to the content. In metal spheres, there is a tendency for the electric field to be zero. Therefore, in the present invention, the box itself is made of an internal additive type polymer resin, and the cassette magazine 40, which is a major structure among the film fixing devices for LCD, which is mounted in the box, is an internal additive type polymer resin ([FIG. 6]) or a PC ([FIG. 7]. ]) Was manufactured by coating with conductive material after injection molding, so that the entire pole box became a pole box (1) with antistatic function.

With reference to the accompanying drawings, the configuration, examples and functional examples of the preferred invention for achieving the object of the present invention with the compound composition and materials as described above.

First, look at the preferred configuration and embodiment of the present invention.

The present invention relates to an anti-friction pole box (Polarization Box) 1, [FIG. 1], [FIG. 2], [FIG. 3], [FIG. 4], [FIG. 5], [FIG. 6] [FIG. As shown in FIG. 7, the pole box 1 is composed of an upper 2 and a lower 3 box, and each of the boxes 2 and 3 is formed as described above, so as to dissipate static electricity. It was made of a type polymer resin, and the physical mechanical properties of the internally added type polymer resin thus prepared are shown in [Table 1], and packing rubbers 51 and 52 were used to completely seal the inside. The packing rubber used here is preferably made of silicone rubber, and can be manufactured in various colors.

Properties ASTM Units P048BK Grade Method Physical Specific Gravity D 792 - 0.92 Mold Shrinkage D 955 % <1.8 Mechanical Tensile strength D 638 kg / cm ² 200 Flexural strength D 790 Kg / cm ² 200 Flexural modulus D 790 kg / cm ² 9,000 Notched Izod Impact Strength D 256 kgcm / cm 20 Thremal Heat Deflection Temperature @ 264psi D 648 ° C 53 Electrical Surface Resistivity D 257 Ω / sq 10 ⁶ to 10 ¹⁰

In the present invention, by changing the color of the packing rubber in addition to the easy opening and closing direction recognition surface 23, it was possible to distinguish the manufacturers and manufacturing lines, the recognition of the sealing direction. In addition, the packing rubber used in one pole box is used to attach two different packing rubber (51, 52) of the different colors or to use a solid packing rubber. When using two different colors of packing rubber used to impart direction recognition, the short part may be fixed to the direction recognition surface 23 for opening and closing, as shown in FIG. ) It is fixed to the arrow parts marked on the upper and lower sides, and the sealing surface of the packing rubber is in the rubber seating groove of the upper box that matches the handle 24 of the lower box, not on the direction recognition surface. So In view of the hermeticity, the effect described above was exerted.

Therefore, FIG. 8 relates to the measurement of the sealability (or water pressure) of the pole box 1 seated by [FIG. 2].

■ Hydraulic calculation method

P = P ₀ + ρgz

P: pressure

ρ: density of water 1,000 kg / m ³

g: Gravity acceleration 9.8m / sec ²

z: POL BOX depth

P _up = P ₀ + P ₁

P _down = P ₀ + P ₂

P _up : Pressure on upper POL BOX

P _down : Pressure on lower POL BOX

P ₀ : atmospheric pressure

P ₁ : Working pressure at 1cm depth of POL BOX

P ₂ : Working pressure at depth of POL BOX 61cm

z _1: 1cm

Z ₂ : 61cm

■ Hydraulic pressure calculation result

P _dif = P _down -P _up

= (P ₀ + P ₂ )-(P ₀ + P ₁ ) = ρg (z ₂ -z ₁ )

= 1,000kg / m ³ × 9.8m / sec ² × (61cm-1cm)

= (5,880kgm / sec ² ) / m2

= 5,880 N / m ²

= 600 Kg _f / m ²

As a result of calculating the water pressure by the theoretical calculation, it was calculated that the sealability to withstand the load of 600kg _f or more per 1 m ² was obtained. Therefore, as shown in FIG. 8, when the pole box 1 was immersed in the water tank, it turned out that it has the outstanding sealing property.

Pole box (1) excellent in sealing properties is composed of a lower box (2) and the upper box (3), the inside of the lower box (2) so that the LCD film fixing device (4) to be securely fixed ‡ groove or LCD As shown in FIG. 9, the film fixing device seating groove 21 is securely seated, and the film fixing device 4 for LCD is stably mounted on the left, right, rear, and the like. Previously, there were fixing plates 41a, 41b, 42a, 42b, 43, 44, which allowed the laminated film to be safely mounted on the fixing device 4 to prevent damage to the film during movement. As shown in FIG. 10 and FIG. 11 attached to the fixing plates 41a, 41b, 42a, 42b, 43, 44 on the left, right, rear and front of the film fixing device 4 for LCD, fixing The lever 4a and the set screws 441a and 441b are stably fixed by simple operation, and the back, left, and right fixing plates 41a, 41b, 42a, 42b, and 43 in the fixing device are respectively provided with five moving paths ( It is designed to be able to move left, right and forward and backward along the 45). After transporting, unscrew the rear, left, right and front fixing levers and fixing screws (4a, 441a, 441b) from the film fixing device (5) for the LCD at the workshop and settle them on the automation equipment of the film workshop. ) Is designed and manufactured so as not to come out of the sides of the fixing plates 41a, 41b, 42a, 42b, 43 in order to prevent the automatic transfer device of the film, and is also attached to the LCD film fixing device 4 for LCD. . The carrying handle 46 of the film holding device for the LCD was mounted on the upper side of the movable fixture plate (41a, 41b, 42a, 42b ). As shown in FIG. 10, it is characterized in that it is possible to prevent a failure in the automation device of the worker while allowing the worker to use it conveniently. The fixed sus plate is fixed to the two fixed sus plate fixing screws 441a and 441b, as shown in FIG. 11, to prevent shaking of the film loaded therein.

[Fig. 12] used the excellent strength of the internal resin type polymer resin as shown in [Table 1] so as to withstand the load even when several pole boxes are loaded in the upper box 3 of the pole box. Give the box with spider web ribs 31 such as honeycomb to withstand the load, while preventing the breakage of the pole box during loading and preventing damage to the internal load due to sliding from the hand when the worker handles the pole box. 33). In addition, the corner of one side is provided with a human face (23) for easy opening and closing to enable the worker to be uniformly mounted on the automated equipment of the film workshop, thereby improving production efficiency. Although not specified in FIG. 1, when viewed in the lower box 2 of the pole box, there is a locking jaw to play a role of preventing the detachment when the pole box is loaded. Further, in fixing the lower box 2 and the upper box 3 to each other, the lower protrusion 2 has locking susps 44 on the front, rear, left, and right sides of the present invention. Since the direction is designated as the front side, each of the four, the upper box (3) has a locking cover (8) with two locking holes (6) is fitted to each of the locking projections (7) serves to seal the pole box do. Locking cover is fixed by hinge, hinge or screw for long term use.

[FIG. 13] shows a state in which the LCD film fixing device 4 is mounted on the lower box 2, [FIG. 14] shows a method of using the LCD film mounted in the pole box arriving at the workplace after the transfer. It is about.

The locking cover shown in FIG. 15 was integrally injection molded with the upper box 3 rather than by a hinge or screw for the convenience of manufacturing the present invention. In the present invention, as the size of the pole box 1 is increased according to the size of the LCD film to be mounted, as close as possible to the corner of the pole box 1 in order to further improve the sealability, as shown in FIG. Likewise, the locking cover 8 is manufactured so as to come close to the corner, and the side portion of the pole box 1 is invented as a locking cover 8 having two wide locking holes 6 to prevent the inflow of humidity from the outside. It is characterized in that the pole box (1) having a sealability and compactness that can be blocked at the source. As the LCD film is getting bigger, such as 30 inches and 40 inches, 50 inches, the locking box 6 and the locking cover 8 are provided in the pole box 1 in order to improve the sealing property. As a result, in the experiment of dipping the pole box 1 into the water tank, the inflow of water into the inside of the pole box 1 could be prevented.

Although not shown in the present invention, a packing rubber having a concave end and a packing rubber having a double groove or a double groove each in the horizontal and vertical directions are used to prevent the sealing of the sealing rubber and the degradation of the sealing even after long-term use. In order to ensure the sealing, the inside of the double vacuum state was maintained so that the water from the outside flows into the inside and restores the packing rubber.

Hereinafter, a preferred working example of the present invention will be described in detail. This preferred working example allows for a better understanding of the objects, features and effects of the present invention.

In addition, the pole box (1) and the film fixing device (4) for LCD can be safely transported while preventing the damage of the product due to frictional charging (electrostatic charge) generated during transportation or movement in storing or transporting the contents in the pole box. Was prepared as a polymer resin excellent in the internal additive-type polymer resin and impact strength.

An internal addition type polymer resin material containing a conductive material in a thermoplastic resin was used to solve static electricity, which is the main triboelectricity of the present invention.

In addition, according to the present invention, the pole box made of a high-impact type polymer resin has excellent wear resistance and has the ability to prevent semi-permanent triboelectricity due to the high-impact type, and the translucent state allows the load stored in the pole box to be identified from the outside. Have

Thus, the triboelectric (electrostatic) releasing mechanism of the manufactured pole box 1 is as follows.

In the present invention, the pole box (1) having an anti-friction function invented, the inner surface is made of (-) charge, the outside is made of (+) charge, the friction electricity generated in the contents during the movement Out of the pole box (1) having a triboelectric protection function. With such a mechanism, the electric field inside has a property of becoming zero (zero) regardless of the shape of the pole box 1. Assuming that there is a charge and an electric field in the conductor in the initial state, the presence of the electric field means that the charges can move under force. That is, the charges in the conductor begin to move under the influence of the electric field and the movement of the charges is in the direction that causes the internal electric field to become zero. It is described in the magnetic and electric fields section of physics that the electric field of the conductor surface is perpendicular to the surface.

Therefore, the friction electricity generated during the movement of the contents stored in the pole box 1 having the anti-friction function according to the invention, that is, the static electricity or the electric field can protect the product from the static electricity generated by moving out of the pole box. In addition, dusts present in the air, which are foreign matters, cause dirt on the surface of the contents due to the nature of sticking to the side where static electricity is generated, and damage caused by difficulty of removing when charged fine dust adheres to the surface of the contents, and especially the contents Electric and electronic companies that handle products that are sensitive to static electricity, such as this, can prevent the end products from being damaged.

In order to identify the mechanism as described above, in the present invention, by placing the electric product generating an electric field outside the box to be measured by measuring the degree of electric field attenuation in the manufactured pole box (1) with anti-friction function The electric field in the center of the box was measured with an electric field meter (E-Tester, NIT).

As a result of measuring with one commercially available shipping box (# 1) and a pole box (# 2) manufactured by the present invention, about 150V / m was measured for the shipping box (# 1). The pole box (# 2) with anti-friction prevention function manufactured by the above is measured at 5V / m or less, and the pole box manufactured according to the present invention has been found to have a function of dissipating an electric field (electrostatic) existing therein. .

Surface resistance (KS M 3015-1997) is determined by the test conditions; Applied voltage 500V, 60 seconds, 20 ± 2 ℃, 65 ± 2% RH, test equipment; It was TOA SME-8311, D1 = 1.96cm , 10 6 ~10 10 Ω at D2 = 2.41cm, the half-life (KS K 0555-2000, A method) test conditions; At 20 ± 2 ℃ and 40 ± 2% RH, the anti-friction performance was very good for less than 2 seconds. Inde surface resistivity measurements are squeezed between the electrodes of the sample charged in the sample 40-50 seconds, is stopped when a surface resistance of 10 ¹² Ω or less Compliant that after one minute to obtain a specific resistance value by measurement, calculation, the present invention is ⁶ to 10 Measured by 10 ¹⁰ Ω it can be seen that very excellent.

The frictional charge was measured using a SIMCO-FMX002 meter. As shown in FIG. 17, the measuring method of the pole box 1 manufactured according to the present invention is as follows.

1) Draw a circle with a diameter of 10cm for each measuring point of the prepared plate.

2) Measure the large voltage before rubbing with paper.

3) Friction (0.5HZ) 20 times within the point range with 4 ~ 5Kg load using printing paper for each measuring point.

4) Measure the friction point voltage within 1 second of the rubbing point,

The five voltages on the plate to be measured were used to determine the distribution of the voltages at each measurement site. Measurements made in the form of boxes rather than plates yielded even better results.

Point Before After One O volt 0 Volt 2 0 Volt 0 Volt 3 0 Volt 0 Volt 4 0 Volt 0 Volt 5 0 Volt 0 Volt

Therefore, the main electrostatic discharge (ESD) measuring method in the present invention is as follows.

[Field measurement]

It measures electric field component of electromagnetic wave, and it is digital method with frequency range 15Hz ~ 2.0KHz, measuring range 1V / m ~ 1,999V / m, error rate ± 5dB.

[Electrostatic measurement]

Electrostatic meters measure the intensity of static sources, and the apparent charge (unit = V) is a measure of the potential for destruction by the induction of generated electromagnetic fields.

[Surface resistance, Rs, ohms per square unit: Ω / cm ² , Ω / sq]

Conductivity plays an important role in the amount of static electricity generated in a material and is a measure of the material's ability to release static electricity, typically the resistive properties of the product used to protect it from ESD.

Half life measurement

The high voltage half-life measures the time when the applied voltage is 8KV, applied for 60 seconds, and when the applied voltage is stopped, the large voltage is reduced to 1/2. The high voltage half-life is evaluated as suitable when it is within 2.0 seconds.

In addition, the present invention is not only the above-described anti-friction function, but also the invention has been given a variety of functions;

1) Orientation: In order to prevent work efficiency degradation due to non-orientation in loading or using loads in the pole box, in the present invention, the directional face is provided on one side of the pole box, and the color of the packing rubber is changed to seal it. It is a feature of the invention that it is possible to distinguish not only the sealed direction at the time, but also to check the load when procuring parts by workshop.

2) Strength reinforcement and prevention of departure: The upper box is made of ribs such as honeycomb, so that the structural strength of the pole box can be increased, and the worker carries the other side of the pole box instead of the handle attached to the pole box. It can be prevented from falling out of the hand, leading to damage to the pole box and damage to the load.

3) Fixing device handle: While fixing the LCD film fixing device to the pole box, the fixing device handle has been moved up and down so that it can be used even with the inner wall of the pole box and the minimum free space.

4) Fixing screw of fixing device: In fixing the movable fixing plate in the film fixing device for LCD, it is another feature that the fixing lever is invented so as not to disturb the automation equipment of the workplace.

5) All attachments attached: All attachments, screws and handles are removed from the invention in order to prevent damage to the product due to detachment of the accessories during use as the attachments are completely attached, and to prevent damage to the product. This was not done.

And the pole box, which is an object of the present invention, was prepared using a polycarbonate (manufacturer: Samyang Corp.) in thermoplastic resin in order to increase the impact strength of the present invention even in the drop test or more severe conditions at a height of 1m or more. The present invention made of the resin is characterized in that no breakage phenomenon occurs at all in the impact measurement in any harsh environment, it is excellent in transparency. Even if the polycarbonate resin used in the internal fixing device does not contain conductivity for smooth supply of raw materials, static electricity generated during transportation by metal sphere principle could be removed, but the external conductive coating was treated for better antistatic properties. To provide antistatic properties.

While specific configuration examples of the present invention have been described and illustrated above, it is obvious that the present invention may be modified and practiced by those skilled in the art.

Such modified configurations and embodiments should not be understood individually from the technical spirit or the prospect of the present invention, and such modified embodiments should fall within the appended claims of the present invention.

As described above, the pole box having the anti-friction function of the present invention prevents foreign substances from being attached to the contents due to the triboelectricity (static electricity) generated due to the shaking of the contents loaded in the pole box and the direct damage of the product. It is a very good product. And by giving direction to the pole box for efficient work process at the work site, it helps to improve the production efficiency.The handle attached inside the limited pole box to facilitate the movement of the fixing device brings the space saving as much as possible. It is characterized by contributing to the size reduction.

Claims (2)

In the preparation of a compound composition of the internal resin-type polymer resin material containing a conductive material in the thermoplastic resin; (1) The resin used as the main component of the thermoplastic resin is polypropylene (PP), acrylonitrile-butadiene-styrene resin (ABS), polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polycarbonate ( PC), polyethylene (PE), polystyrene (PS) is used, 99.5 to 75% by weight of a thermoplastic resin blended alone or two or more components of the resin, (2) Conductive material is ITO (Indium Tin Oxide), conductive polymer is Poltaniline, Polyethylenedioxythiophene, Polypyrole, Polythiophene, Poly (p-phenylene), Polyacetylene, Poly (p-phenylene vinylene), Polythienylene vinylene, Polyisothianaphyhene, Poly (p- phenylene sulfide) is used, at least one selected from the group consisting of antistatic agents such as quaternary ammonium cation surfactants, trimethyl ammonium ethoxide, trimethyl ammonium butoxide, trimethyl ammonium phenoxide, trimethyl ammonium P-chloro phenoxy Seed, cationic surfactant selected from trimethyl ammonium lauoxide; and anionic surfactant (3-lauramidopropyl) trimethylammonium methyl sulfate, the antistatic agent is an anion such as carbonic acid type, sulfate ester type, sulfonate type, phosphate ester type Surfactant; the same amount as alkyltrimethylammonium chloride, dialkylmethylammonium chloride, benzalkonium chloride Ionic surfactants; amphoteric surfactants such as alkyl dimethylamino acetic acid betaine, alkyl amide dimethylamino acetic acid betaine, 2-alkyl-N-carboxy-N-hydroxyimidazolinium betaine; polyoxyethylene type, polyhydric alcohol In use of at least one selected from nonionic surfactants such as ester type and ethylene oxide propylene oxide block copolymers; natural surfactants such as lecithin; and polymeric surfactants. The amount of the material exhibiting the conductivity is 0.5 to 25% by weight of the amount of the composition to the extruder in a quantitative and extruded at 150 ~ 350 ℃ high temperature extruder to produce a pellet resin, characterized in that Internal-type polymer resin composition. In manufacturing the pole box (1) by injection molding the internal additive-type polymer resin prepared according to claim 1, (1) The cassette magazine 40, which is a major structure among the film fixing devices for LCDs mounted in a box, is manufactured by coating with a conductive material after injection molding with an internal polymer-type resin or PC, (2) The upper (2) and lower (3) boxes use color packing rubbers (51, 52) to seal the inside, (3) Inside the pole box (1), the film fixing device (4) for the LCD is made of ‡ grooves to be securely fixed, (3) The film fixing device 4 for LCD includes movable fixing plates 41a 41b, 42a, 42b, 43, 44 which are movable left, right, rear and front, and the movable fixing plates 41a 41b, 42a, 42b, 43, 44 is composed of the fixing lever (411a 411b, 421a, 421b, 431, 441a, 441b), the carrying handle of the LCD film fixing device on the upper side of the movable fixing plate (41a, 41b, 42a, 42b) 46), (4) The pole box with anti-friction function, characterized in that the web box rib 31 such as honeycomb and the edge of one side of the upper box 3 of the pole box 1 have a human face 23 for easy opening and closing. (1) Manufacturing method.

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