KR101992111B1 - Oil-containing resin composition and lubricating product using the same - Google Patents

Abstract

The present invention relates to an oil-containing resin composition and a lubricant product including the same. The lubricant product is formed with an oil-containing resin composition, wherein mixed resin is formed by mixing 20-70 wt% of low density polyethylene (LDPE), 10-40 wt% of ultra-high density polyethylene (UHWPE), 5-35 wt% of polyolefin elastomer (POE), and 15-65 wt% of polyethylene silicone compound (MB-PE) and the oil-containing resin composition is formed by mixing 30-90 parts by weight of oil, 0.06-0.6 parts by weight of a cross-linking agent, and 0.1-0.8 parts by weight of an antioxidant with respect to 100 parts by weight of the mixed resin. According to the present invention, the resin composition and the lubricant product are stable against breakage by having high elongation and low tensile strength, have excellent oil-containing ability, and are able to maintain abrasion resistance and lubricity stably for a long time by preventing the excessive release of organic additives during a molding process.

Description

Oil-containing resin composition and lubricating product using same

The present invention relates to an oil-containing resin composition and a lubricating product using the oil-containing resin composition. More specifically, the present invention relates to an oil-containing resin composition and a lubricating product using the oil-containing resin composition. Which is capable of stably maintaining abrasion resistance and lubricity for a long period of time, and a lubricating product using the same.

'Friction' refers to the phenomenon that when two objects touching each other make a relative motion, resistance to the motion occurs, and the resistance is the frictional force.

"Wear" refers to a phenomenon in which an object gradually breaks down due to mechanical movement at the surface of the object.

Friction and abrasion are properties determined by driving conditions and environment, not the inherent physical properties of each material, and they are directly related to the life of the product.

Recently, friction and abrasion characteristics are becoming more important as the interest in lifetime and cost reduction of products is increased.

Particularly, a conveyance mechanism such as an LM guide, a ball screw, a ball spline, a linear bush or the like guides the conveyed material by the rolling motion of the rolling element or transmits the conveying force, and abrasion due to rolling friction of the rolling element occurs on the raceway surface .

Therefore, in the case of a feed mechanism in which friction due to mechanical motion is inevitable, lubrication which reduces the friction between the friction surfaces by using a lubricant in order to reduce the frictional force generated on the friction surface and enable smooth mechanical movement, .

Typical lubricants used for lubrication include grease, which has a high viscosity and is applied to the lubrication point as a coating method, and lubricating oil that is used as a lubricant at a lubricating point due to its low viscosity.

However, it is difficult to apply an optimal amount to a lubricating portion of a grease having a high viscosity. Therefore, it is difficult to apply an optimal amount to a lubricating portion, There is a problem that it is necessary to replace the lubricant at an arbitrary interval in order to maintain stable lubricity.

In addition, lubricating oil having a low viscosity is required not only to have a separate oiling hole at a position adjacent to the lubricating portion for continuous lubrication but also requires manual oiling by hand to require the operator to perform lubrication periodically, The automatic lubrication system using the lubricator requires the installation of complicated lubricant supply lines and the maintenance and maintenance of the lubricant tank connected to the lubricant supply line is troublesome in order to maintain stable lubrication.

As described above, in the conventional lubrication methods, it is necessary to regularly perform maintenance for stable maintenance of lubrication, which is troublesome, and labor input is inevitable for periodical execution of lubrication management, resulting in labor costs , There is a disadvantage in that efficiency and economy are inferior.

In recent years, lubricating products having self-lubricating properties have been developed in order to solve the disadvantages of the conventional lubrication method as described above.

That is, by molding a product using a resin composition in which an organic additive is mixed, self-lubricating property is obtained even after molding the product due to the physical properties of the resin composition itself mixed with the organic additive, thereby exhibiting excellent wear resistance.

However, the resin composition of the prior art has a self-lubricating property even after product molding by the contained organic additive, but there is a disadvantage in that the organic additive component contained in the resin composition is excessively removed in the molding process of the product. As the amount of the organic additive increases, the material cost rises and the production cost increases due to the cumbersome production and management due to the excessive detachment of the organic additive.

Patent Registration No. 10-1629251

INDUSTRIAL APPLICABILITY The oil-containing resin composition and the lubricating product using the same according to the present invention are designed to overcome the problems of the prior art as described above. The oil-containing resin composition of the present invention has lubricity through leaking of oil according to the action of heat and pressure, It is an object of the present invention to provide a resin composition.

It is another object of the present invention to provide a resin composition which can prevent the organic additive from being excessively released during the molding of the product, thereby allowing the organic additive to be suitably used and efficiently produced and controlled.

Another object of the present invention is to provide a lubrication product having improved lubricity and service life as a contact (lubrication) seal by having stable mechanical properties against breakage while having lubricity through oil elution due to the action of heat and pressure .

In order to achieve the above object, the oil-containing resin composition of the present invention is an oil-containing resin composition composed of a mixture of a polyethylene (PE) -based mixed resin and an additive,

Wherein the mixed resin comprises 20 to 70% by weight of low density polyethylene (LDPE); 10 to 40% by weight of ultra high density polyethylene (UHWPE); 5 to 35% by weight of polyolefin elastomer (POE); And 15 to 65% by weight of a polyethylene silicone compound (MB-PE)

Wherein the additive comprises 30 to 90 parts by weight of an oil based on 100 parts by weight of the mixed resin;

0.06 to 0.6 parts by weight of a crosslinking agent; And 0.1 to 0.8 parts by weight of an antioxidant.

The polyethylene silicone compound is characterized by having a silicon content of 25 to 55% by weight.

 The crosslinking agent may be at least one selected from the group consisting of dicumylperoxide, dibenzoylperoxide, cyclohexanoneperoxide, t-butylperoxyisopropylcarbonate, t-butylperoxylaurate, t-butylperoxyacetate, di- Butylperoxyperoxide, 1,3-bis (t-butylperoxyisopropyl) benzene, methyl ethyl ketone peroxide, di- (2 (4-dichlorobenzoyl) peroxide, 1,1-di (t-butylperoxy) -3,3,5-trimethylcyclohexane, 2,5- (T-butylperoxy) hexane, di-t-butylperoxide, and n-butyl-4,4-bis And is characterized by being either one.

The antioxidant may be selected from the group consisting of pentaerythritoltetrakis (3,5-ditert-butyl-4-hydroxyhydrocinnamate), tris2, (2,4-di-tert-butylphenyl) phosphite], and 4-di-tert-butylphenyl phosphite.

Further, the present invention provides a lubrication product molded using the oil-containing resin composition.

The oil-containing resin composition and the lubricating product using the oil-containing resin composition of the present invention are mixed with resins having different physical properties to increase the elongation and lower the tensile strength, so that the lubricating products, such as solid lubricating seals or containing members, So that it is possible to obtain stable mechanical properties.

In addition, the present invention can improve the content of the resin composition by mixing the polyethylene silicone compound in the resin composition, and prevent excessive detachment of the organic additive during the molding process, thereby reducing the manufacturing cost by proper use of the organic additive, .

Further, when molding the product using the resin composition of the present invention, the surface of the product is improved in smoothness, lubricity, abrasion resistance and scratch resistance, and has an excellent surface property and appearance.

In addition, when the lubricating product produced by the resin composition of the present invention acts as a contact (lubricating) seal, not only does the oil elute due to the action of heat or pressure due to contact, but also has mechanical properties that are stable to breakage So that the life of the product is improved and the time and cost for maintenance can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a graph showing the weight loss of a product according to the content of a polyethylene silicone compound according to an embodiment of the oil-containing resin composition of the present invention. FIG.
2 is a graph showing the cumulative weight loss of a product according to the content of a polyethylene silicone compound according to an embodiment of the oil-containing resin composition of the present invention.
3 is a view showing an example of a solid lubricating seal for an LM guide as a first embodiment of a lubrication product using the oil-containing resin composition of the present invention.
Fig. 4 is an illustration showing a containing member for a ball screw as a second embodiment of a lubrication product using the oil-containing resin composition of the present invention. Fig.

Hereinafter, in explaining the oil-containing resin composition of the present invention and the lubrication product using the oil-containing resin composition, the following description is not intended to limit the specific embodiments described in this document, , Equivalents, and / or alternatives of the present invention.

In connection with the description of the drawings, like reference numerals may be used for similar elements, and the terms " first, "" second, ", etc. used in the present invention may refer to various elements in order and / It is used to distinguish one component from another, and is not limited to those components.

For example, 'first part' and 'second part' may represent different parts, regardless of order or importance. For example, without departing from the scope of the invention described in the present invention, the first component can be named as the second component, and similarly, the second component can also be named as the first component.

Furthermore, the terms used in the present invention are used only to describe specific embodiments, and are not intended to limit the scope of other embodiments. The singular expressions may include plural expressions unless the context clearly dictates otherwise.

Terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by one of ordinary skill in the art. The general predefined terms used in the present invention can be interpreted in the same or similar meaning as the contextual meanings of the related art, and, unless expressly defined in the present invention, mean ideal or overly formal meanings . It is needless to say that the terms defined in the present invention can not be construed as excluding the embodiments of the present invention.

The oil-containing resin composition of the present invention is constituted by mixing a mixed resin of a polyethylene (PE) base and an additive.

Wherein the mixed resin comprises 20 to 70% by weight of low density polyethylene (LDPE); 10 to 40% by weight of ultra high density polyethylene (UHWPE); 5 to 35% by weight of polyolefin elastomer (POE); And 15 to 65% by weight of a polyethylene silicone compound (MB-PE).

There are various kinds of polyethylene (PE) according to the molecular weight.

Low Density Polyethylene (LDPE) is a synthetic resin produced by polymerization of ethylene. It is a transparent solid (density 0.91 ~ 0.94) at room temperature. It has low crystallization and excellent workability, flexibility and transparency. It is used as a raw material for cloths and various wraps.

Linear low-density polyethylene (LLDPE) is linear and has a low density, including a small branch like LDPE. It has a molecular weight distribution narrower than that of LDPE and has excellent physical properties such as excellent electrical insulation and withstanding voltage characteristics, excellent mechanical properties, good chemical resistance, easy processing, relatively low cost, good dielectric properties, Good water resistance and moisture resistance.

High Density Polyethylene (HDPE) is a synthetic resin produced by polymerizing ethylene. Its properties are semitransparent solid (density is 0.94 or higher) and it has excellent strength but low flexibility and processability. It is mainly used for disposable shopping bags, It is used as a raw material for pipes and the like.

Among the various types of polyethylene (PE) according to the molecular weight, the higher the molecular weight of the resin, the more stable migration of the oil occurs when mixed with the oil, while the moldability is lowered.

Accordingly, in order to improve the stability of oil elution and to enable the molded product to perform a sealing function smoothly, a low-density polyethylene (LDPE) having excellent formability is applied to ultra-high density polyethylene (UHWPE) Mix.

The UltraHigh Molecular Weight Polyethylene (UHWPE) has a molecular weight of 100 to 800,000, which is one order of magnitude larger than general PE (10 to 300,000).

It has exceptional performance compared to general-purpose polyethylene (PE) and is positioned as an engineering plastic with polyacetal, nylon, and fluorine resin.

The polyolefin elastomer is an olefin-based resin having elasticity by using butene or octane which is long in chain, and can improve the properties of various resins by copolymerization or blending. .

The polyethylene silicone compound (MB-PE) is a mixture of polyethylene base and silicone, and preferably has a silicone content of 25 to 55 wt%.

That is, the polyethylene silicone compound is a product in which an excessive amount of silicone polymer is dispersed in a polyethylene matrix, and the silicone polymer component in the compound prevents the fluid and other organic additives of the low molecular weight silicone material from escaping, so that the oil can be stably contained .

In addition, not only the processing characteristics of the resin and the filling of the molding die are improved, but also the torque of the extruder can be reduced when the product is molded using the extruder. have.

In addition, when the product is molded, the surface smoothness, lubricity, abrasion resistance and scratch resistance of the product surface are improved, thereby improving the surface characteristics and appearance of the product.

In addition, lubricity can be imparted to the surface of a product even in a small amount compared with a lubricant, which is generally known plastic additive, so that weight control of a product is easy, dispersion is good, and stability is excellent.

It is noted beforehand that a PE-based silicon master batch can also be used for the polyethylene silicone compound (MB-PE).

If the weight ratio of the polyethylene silicone compound is out of the above range of 15 to 65 wt%, it is difficult to expect a reduction in processability, an adjustment of the amount of elution of the oil expected by mixing, and a complementary mechanical property.

The additive is mixed with oil, a cross-linking agent and an antioxidant at a predetermined ratio with respect to 100 parts by weight of the mixed resin.

The oil is mixed in an amount of 30 to 90 parts by weight with respect to 100 parts by weight of the mixed resin.

When the content is less than 30 parts by weight, the amount of oil to be eluted is insufficient and it is difficult to expect lubrication. When the content is more than 90 parts by weight, the mechanical properties are deteriorated and the workability It is difficult to produce and serve as a lubricating product such as a solid lubricating seal or a containing member.

The crosslinking agent is mixed in an amount of 0.06 to 0.6 part by weight based on 100 parts by weight of the mixed resin.

 If the content of the cross-linking agent is less than 0.06 parts by weight, the mechanical properties are deteriorated. If the cross-linking agent content is more than 0.6 parts by weight, excessive gelation occurs due to networking between main chains due to excessive reaction, .

The crosslinking agent may be at least one selected from the group consisting of dicumylperoxide, dibenzoylperoxide, cyclohexanoneperoxide, t-butylperoxyisopropylcarbonate, t-butylperoxylaurate, t-butylperoxyacetate, di- Butylperoxyperoxide, 1,3-bis (t-butylperoxyisopropyl) benzene, methyl ethyl ketone peroxide, di- (2 (4-dichlorobenzoyl) peroxide, 1,1-di (t-butylperoxy) -3,3,5-trimethylcyclohexane, 2,5- (T-butylperoxy) hexane, di-t-butylperoxide, and n-butyl-4,4-bis It is preferable that any one of them is used.

The antioxidant is mixed in an amount of 0.1 to 0.8 parts by weight based on 100 parts by weight of the mixed resin.

 If the content of the antioxidant is less than 0.1 parts by weight, it is difficult to achieve the structural protection of the resin from heat and pressure generated during mixing and processing. If the amount exceeds 0.8 parts by weight, the solid lubricating seal or the containing member And the mechanical properties may be deteriorated.

The antioxidant may be selected from the group consisting of pentaerythritol tetrakis (3,5-ditert-butyl-4-hydroxyhydrocinnamate) and tris 2 , And 4-di-tert-butylphenyl phosphite] is preferable.

Hereinafter, the results of various experiments conducted to confirm the action of the present invention and its effect are as follows.

<First Experiment>

In preparing the oil-containing resin composition of the present invention, the oil elution characteristics of the resin composition according to the content of the polyethylene silicone compound (MB-PE) were confirmed.

That is, in order to confirm only the lubrication functional part of the polyethylene silicone compound (MB-PE) according to the change of the amount of the polyethylene silicone compound (MB-PE), the low density polyethylene (LDPE) and the polyolefin elastomer POE) was used as the main component of the mixed resin.

(Experiment 1-1)

By weight based on 100% by weight of a mixed resin in which 35% by weight of low density polyethylene (LDPE), 5% by weight of polyolefin elastomer (POE) and 60% by weight of polyethylene silicone compound (MB-

0.24 parts by weight of a crosslinking agent (DCP), 0.12 parts by weight of an antioxidant (Anox 20), 0.12 parts by weight of an antioxidant (Alkanox 240) and 50 parts by weight of N-oil were premixed and then mixed at 150 ° C, .

(Experiment 1-2)

By weight based on 100% by weight of a mixed resin in which 55% by weight of low density polyethylene (LDPE), 5% by weight of polyolefin elastomer (POE) and 40% by weight of polyethylene silicone compound (MB-

0.24 parts by weight of a crosslinking agent (DCP), 0.12 parts by weight of an antioxidant (Anox 20), 0.12 parts by weight of an antioxidant (Alkanox 240) and 50 parts by weight of N-oil were premixed and then mixed at 150 ° C, .

(Experiment 1-3)

By weight based on 100% by weight of a mixed resin in which 75% by weight of low density polyethylene (LDPE), 5% by weight of polyolefin elastomer (POE) and 20% by weight of a polyethylene silicone compound (MB-

0.24 parts by weight of a crosslinking agent (DCP), 0.12 parts by weight of an antioxidant (Anox 20), 0.12 parts by weight of an antioxidant (Alkanox 240) and 50 parts by weight of N-oil were premixed and then mixed at 150 ° C, .

(Experiment 1-4)

By weight based on 100% by weight of a mixed resin obtained by mixing 95% by weight of low-density polyethylene (LDPE) and 5% by weight of polyolefin elastomer (POE)

0.24 parts by weight of a crosslinking agent (DCP), 0.12 parts by weight of an antioxidant (Anox 20), 0.12 parts by weight of an antioxidant (Alkanox 240) and 50 parts by weight of N-oil were premixed and then mixed at 150 ° C, .

The content ratios of the resin compositions of Experiments 1-1 to 1-4 are shown in Table 1 below.

(Table 1)

Table 2 shows the results of measuring the oil loading rate after molding the product using the resin compositions of Experiments 1-1 to 1-4.

(Table 2)

* Oil load rate ( % ) = Oil content ( % ) / Put Oil amount ( % ) x 100

The oil content is the result of thermal analysis (TGA).

The oil load ratio was calculated by dividing the oil content (%) by the composition of each resin composition after forming the product using the resin composition of Experiments 1-1 to 1-4, %), And it is a figure that shows how much oil entered during molding.

From Table 1 and Table 2, it can be seen that the samples 1, 2 and 3 to which the polyethylene silicone compound was added had a higher oil content than the sample 4 to which the polyethylene silicone compound was not added.

Experiments 1-1 to 1-3 show that the addition of the polyethylene silicone compound (MB-PE) increases the oil content by a small amount relative to the weight of the test material. However, the polyethylene silicone compound (MB-PE) The oil content did not increase proportionally up to 60% by weight.

Therefore, it can be seen that the mixing of the polyethylene silicone compound (MB-PE) with the resin composition increases the oil content, but the content of the polyethylene silicone compound (MB-PE) and the increase in the oil content are not in a proportional relationship.

Fig. 1 is a graph showing the weight loss of a product according to the content of a polyethylene silicone compound according to an embodiment of the oil-containing resin composition of the present invention. Fig. 2 is a graph showing the weight loss of the polyethylene silicone compound according to the embodiment of the oil- A graph showing a cumulative weight loss amount of each product.

Will be described with reference to Figs. 1 to 2. Fig.

The weight loss was measured by measuring the change in weight of the material with oil drainage over time in a 50 ° C oven.

As shown in FIG. 1, which shows the weight loss according to the content of the polyethylene silicone compound (MB-PE), the oil release amount in the resin composition in which the oil and the polyethylene silicone compound are mixed is maintained relatively constant over time, regardless of the content of the polyethylene silicone compound The self-lubricating ability can be maintained stably for a long period of time.

The cumulative weight loss is the sum of the measured weight loss.

As shown in FIG. 2, which shows the cumulative weight loss according to the content of the polyethylene silicone compound (MB-PE), in the resin composition in which the oil and the polyethylene silicone compound are mixed, the cumulative weight due to the oil release is higher as the content of the polyethylene silicone compound increases. Weight loss is also greater.

That is, the weight loss is proportional to the oil flow rate of the material, and the constant decrease in weight indicates that the oil of the material is constantly discharged.

In addition, as the slope of the slope of the weight reduction graph increases, the oil outflow of the material is more likely to occur.

Therefore, in order to increase the oil content in the resin composition, it is preferable to increase the content of the polyethylene silicone compound to be mixed with the thermoplastic resin. However, it is preferable to finally set the content of the polyethylene silicone compound in consideration of the manufacturing cost and the mechanical properties.

&Lt; Second Experiment &

The mechanical properties of the resin composition were confirmed according to the contents of low density polyethylene (LDPE), ultra high density polyethylene (UHWPE) and polyolefin elastomer (POE).

(Experiment 2-5)

Based on 100 wt% of the mixed resin in which 48.72 wt% of low density polyethylene (LDPE), 12.18 wt% of ultra high density polyethylene (UHWPE), 9.1 wt% of polyolefin elastomer (POE) and 30 wt% of polyethylene silicone compound (MB- ,

0.24 parts by weight of a crosslinking agent (DCP), 0.12 parts by weight of an antioxidant (Anox 20), 0.12 parts by weight of an antioxidant (Alkanox 240) and 60 parts by weight of N-oil were premixed and then mixed at 150 ° C to prepare a resin composition .

(Experiment 2-6)

Based on 100 weight% of a mixed resin in which 42.64% by weight of low density polyethylene (LDPE), 18.27% by weight of ultra high density polyethylene (UHWPE), 9.1% by weight of polyolefin elastomer (POE) and 30% by weight of polyethylene silicone compound ,

0.24 parts by weight of a crosslinking agent (DCP), 0.12 parts by weight of an antioxidant (Anox 20), 0.12 parts by weight of an antioxidant (Alkanox 240) and 60 parts by weight of N-oil were premixed and then mixed at 150 ° C to prepare a resin composition .

(Experiment 2-7)

Based on 100 wt% of a mixed resin in which 36.54 wt% of low density polyethylene (LDPE), 24.36 wt% of ultrahigh density polyethylene (UHWPE), 9.1 wt% of polyolefin elastomer (POE), and 30 wt% of a polyethylene silicone compound (MB- ,

0.24 parts by weight of a crosslinking agent (DCP), 0.12 parts by weight of an antioxidant (Anox 20), 0.12 parts by weight of an antioxidant (Alkanox 240) and 60 parts by weight of N-oil were premixed and then mixed at 150 ° C to prepare a resin composition .

(Experiment 2-8)

By weight based on 100% by weight of a mixed resin in which 54.55% by weight of low density polyethylene (LDPE), 36.37% by weight of ultra high density polyethylene (UHWPE) and 9.1% by weight of polyolefin elastomer (POE)

0.24 parts by weight of a crosslinking agent (DCP), 0.12 parts by weight of an antioxidant (Anox 20), 0.12 parts by weight of an antioxidant (Alkanox 240) and 60 parts by weight of N-oil were premixed and then mixed at 150 ° C to prepare a resin composition .

As described above, when the content of the polyethylene silicone compound (MB-PE) exceeds 20% by weight, the oil content and the oil blending flow rate of the resin composition of Experiments 2-5 to 2-8, But the content of the polyethylene silicone compound (MB-PE) was set to 30% by weight because there was no significant difference from that when the content of the polyethylene silicone compound (MB-PE) was 40% by weight.

In order to confirm the physical properties of the resin composition according to the change of the contents of the low density polyethylene (LDPE) and the ultra high density polyethylene (UHWPE), the ratio was adjusted.

Thus, the content ratios of the resin compositions of Experiments 2-5 to 2-8 are shown in Table 1 below.

(Table 3)

On the other hand, after the injection molding of the solid lubricating seal 10 of Fig. 3 or the containing member 20 of Fig. 4 using the respective resin compositions of Experiments 2-5 to 2-8, the physical properties of the injection- Are shown in Table 2 below.

(Table 4)

From Table 3 and Table 4, it can be seen that as the content of the low density polyethylene (LDPE) increases, the elongation increases and the tensile strength decreases as the polyethylene silicone compound is mixed. The polyethylene silicone compound is mixed, And the characteristics of the soft material stable against breakage are shown.

Therefore, the injection molded product produced by the resin composition of the present invention is suitable for use as a solid lubricating seal or containing member.

According to the results of the above tests, it is possible to provide a lubricating oil composition which has a high elongation and a low tensile strength, is stable to breakage, is excellent in the content and is capable of preventing excessive release of the organic additive during the molding process and stably maintaining wear resistance and lubricity for a long period of time. The optimum mixing ratio of the resin composition is as follows.

That is, in the construction of the oil-containing resin composition by mixing the mixed resin of the polyethylene (PE) base and the additive,

Wherein the mixed resin comprises 20 to 70% by weight of low density polyethylene (LDPE); 10 to 40% by weight of ultra high density polyethylene (UHWPE); 5 to 35% by weight of polyolefin elastomer (POE); And 15 to 65% by weight of a polyethylene silicone compound (MB-PE)

Wherein the additive comprises 30 to 90 parts by weight of an oil based on 100 parts by weight of the mixed resin;

0.06 to 0.6 parts by weight of a crosslinking agent; And 0.1 to 0.8 parts by weight of an antioxidant.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims. While the present invention has been described in connection with the preferred embodiments thereof with reference to the accompanying drawings, it is to be noted that various changes and modifications will be apparent to those skilled in the art.

Claims (5)

An oil-containing resin composition comprising a mixture of a polyethylene (PE) -based mixed resin used in a lubricating product having self-lubricating property and an additive,
Wherein the mixed resin comprises 20 to 70% by weight of low density polyethylene (LDPE);
10 to 40% by weight of ultra high density polyethylene (UHWPE);
5 to 35% by weight of polyolefin elastomer (POE);
And 15 to 65% by weight of a polyethylene silicone compound (MB-PE)
The additive may be added to 100 parts by weight of the mixed resin,
30 to 90 parts by weight of oil;
0.06 to 0.6 parts by weight of a crosslinking agent;
0.1 to 0.8 parts by weight of an antioxidant,
Wherein the polyethylene silicone compound (MB-PE) prevents the oil from escaping and increases the oil content of the molded product. The method according to claim 1,
Wherein the polyethylene silicone compound has a silicone content of 25 to 55% by weight. 3. The method of claim 2,
The crosslinking agent may be at least one selected from the group consisting of dicumylperoxide, dibenzoylperoxide, cyclohexanoneperoxide, t-butylperoxyisopropylcarbonate, t-butylperoxylaurate, t-butylperoxyacetate, di- Butylperoxyperoxide, 1,3-bis (t-butylperoxyisopropyl) benzene, methyl ethyl ketone peroxide, di- ( (2,4-dichlorobenzoyl) peroxide, 1,1-di (t-butylperoxy) -3,3,5-trimethylcyclohexane, 2,5- , 2,5-dimethyl-2,5-di (t-butylperoxy) hexane, di-t-butyl peroxide, and n-butyl- Containing resin composition. 3. The method of claim 2,
The antioxidant may be selected from the group consisting of pentaerythritoltetrakis (3,5-ditert-butyl-4-hydroxyhydrocinnamate), tris2, (4-di-tert-butylphenyl) phosphite]. 4. The oil-containing resin composition according to claim 1, A lubricating article characterized by being molded using the oil-containing resin composition according to any one of claims 1 to 4.

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