KR102034636B1 - Eco-blend resin composition comprising fiber glass and manufacturing method of eco-plastic material using the same - Google Patents

Abstract

The present invention is one or more selected from the group consisting of polyethylene terephthalate (PET), high-strength polystyrene (HI-Impact-Polystryrene, hereinafter HIPS) and fluorine compounds By blending materials and specific combinations of inorganic fillers, including glass fibers together, even if the amount of ABS used is reduced compared to the prior art, it provides excellent impact resistance and scratch resistance, while reducing manufacturing costs and compatibility between PC and ABS. In addition, it provides eco-friendly plastic products by using PC and ABS obtained from recycled resin.

Description

ECO-BLEND RESIN COMPOSITION COMPRISING FIBER GLASS AND MANUFACTURING METHOD OF ECO-PLASTIC MATERIAL USING THE SAME}

The present invention relates to an environmentally friendly blend resin composition including glass fibers and a plastic material produced using the same.

Plastic materials using fossil resources such as petroleum and coal are widely used in the fields of construction materials, office supplies, packaging materials, automobile bumpers and parts, hard hats, cell phone shock protection casings, and toys. Plastic materials have contributed to the development of the industry as well as providing abundant and convenient daily life, and are expected to continue to be used in the future and to continue to develop in terms of function.

As one of the resins used to make these plastic materials, polycarbonate (hereinafter referred to as PC) has excellent mechanical and thermal properties, high transparency and impact resistance, and is suitable for optical applications such as lenses, compact discs, mobile phones, laptops, It is widely used as a material in fields such as OA materials such as printers, mechanical parts, etc., but has a high melt viscosity and low fluidity, making it difficult to mold and having low chemical resistance. In addition, there is a limit to the application of the product that the low temperature impact strength is required because the notch impact strength is sharply lowered at low temperatures.

These shortcomings of the PC can be compensated by blending with various various thermoplastic resins, elastomers (Elastomer), etc. Among these, acrylonitrile-butadiene-styrene (hereinafter ABS) resin to compensate for the shortcomings of the PC. Most widely used.

Although ABS resins can effectively compensate for the disadvantages of PC, in general, ABS resins are expensive due to high manufacturing cost, which leads to low economical efficiency, and also low compatibility when blending PC and ABS resins. Has been pointed out.

Republic of Korea Patent Publication No. 10-2015-0075918 (2015.07.06.)

The present invention has been made to solve the above problems, in addition to ABS, polyethylene terephthalate (PET), high strength polystyrene (HI-Impact-Polystryrene, HIPS) as a resin to compensate for the shortcomings of the PC And by blending together one or more materials selected from the group consisting of fluorine-based compounds and inorganic fillers including glass fibers, thereby ensuring excellent impact resistance and scratch resistance even when the amount of ABS used is reduced compared to the prior art. To reduce costs, increase the compatibility between PCs and ABS, and furthermore, use PC and ABS obtained from recycled resins to provide eco-friendly plastic products.

In one embodiment for achieving the object of the present invention, polycarbonate (PC); Acrylonitrile-butadiene-styrene (ABS); Polyethylene terephthalate (PET), high strength polystyrene (HIPS) and fluorine-based compounds; And 2 to 4 parts by weight of an inorganic filler based on 100 parts by weight of the polycarbonate (PC), wherein the at least one selected from the polycarbonate and acrylonitrile-butadiene-styrene is a recycled resin. Wherein the blend resin composition comprises 9 to 12 parts by weight of acrylonitrile-butadiene-styrene (ABS) based on 100 parts by weight of polycarbonate (PC); 18 to 21 parts by weight of a mixture of polyethylene terephthalate (PET), high strength polystyrene (HIPS) and fluorine-based compounds, wherein the polyethylene terephthalate (PET), high-strength polystyrene (HIPS) and fluorine-based compounds in the mixture is 1: 2 4 to 0.1 to 0.3 by weight, the inorganic filler is glass fiber; And at least one selected from the group consisting of talc, calcium carbonate, calcium sulfate, magnesium oxide, calcium stearate, willlastonite, mica, silica, calcium silicate, clay and carbon black; It provides an environmentally friendly blend resin composition comprising a glass fiber that is mixed in a weight ratio of 2: 1 to 3: 1.

In another embodiment of the present invention, a plastic material made of an environmentally friendly blend resin composition including the glass fiber, the material has a laminated structure in which the inner layer, the middle layer and the outer layer are sequentially laminated, the outer layer is the inner layer and the middle layer Compared to the ABS content is relatively high, the inner layer is less ABS content than the outer layer, but the ABS content is relatively higher than the middle layer, the middle layer is an eco-friendly plastic material characterized in that the ABS content is relatively low compared to the outer and inner layers to provide.

Eco-friendly blend resin composition comprising a glass fiber according to the present invention can secure excellent impact resistance and scratch resistance, even if the amount of ABS, the unit cost is reduced compared to the blend resin mixed only PC and ABS according to the prior art In addition to reducing manufacturing costs and high economic feasibility, it also increases the compatibility between PC and ABS, and furthermore, it is possible to provide eco-friendly plastic products by using PC and ABS obtained from recycled resin.

In addition, the plastic material produced using the environmentally friendly blend resin composition including the glass fiber according to the present invention has more than 85% impact resistance and scratch resistance of 92% or more compared to the material manufactured using the new material. Therefore, the plastic material according to the present invention can be widely used in the fields of automobile bumpers, door trims, home appliances, wire cables and the like.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described. Although the present invention has been described with reference to the embodiments shown in the drawings, this is described as one embodiment, whereby the technical spirit of the present invention and its core configuration and operation are not limited.

Eco-friendly Blend Resin Composition

In general, polycarbonate (PC) has a disadvantage of having high melt viscosity and low fluidity, making it difficult to mold and having low chemical resistance. Thus, in order to compensate for this, a blend of acrylonitrile-butadiene-styrene (ABS) is mixed. Plastic materials and products have been manufactured in the form. However, the ABS resin has a problem of low cost due to high unit cost and generally low compatibility when blending PC and ABS resin.

Accordingly, in the present invention, a group consisting of polyethylene terephthalate (PET), high-strength polystyrene (HIPS), and fluorine-based compound in addition to ABS as a resin to compensate for the disadvantage of polycarbonate (PC) By blending together one or more materials selected from a specific combination of inorganic fillers, including glass fibers, it is possible to reduce manufacturing costs while attaining excellent impact resistance and scratch resistance even if the amount of ABS used is reduced compared to the prior art. To improve the compatibility between and ABS, furthermore, PC and ABS obtained from recycled resin were used to provide eco-friendly plastic products.

Eco-friendly blend resin composition comprising a glass fiber according to an embodiment of the present invention polycarbonate (PC); Acrylonitrile-butadiene-styrene (ABS); Mixtures of polyethylene terephthalate (PET), high strength styrene (HIPS) and fluorine-based compounds; And 2 to 4 parts by weight of an inorganic filler based on 100 parts by weight of the polycarbonate (PC), wherein at least one selected from the polycarbonate and acrylonitrile-butadiene-styrene is a recycled resin, and the blend resin composition 9-12 parts by weight of acrylonitrile-butadiene-styrene (ABS) based on 100 parts by weight of silver polycarbonate (PC); 18 to 21 parts by weight of a mixture of polyethylene terephthalate (PET), high strength polystyrene (HIPS) and fluorine-based compounds, wherein the polyethylene terephthalate (PET), high-strength polystyrene (HIPS) and fluorine-based compounds in the mixture is 1: 2 4 to 0.1 to 0.3 by weight, the inorganic filler is glass fiber; And at least one selected from the group consisting of talc, calcium carbonate, calcium sulfate, magnesium oxide, calcium stearate, willlastonite, mica, calcium silicate, clay and carbon black; the weight ratio of 2: 1 to 3: 1 It may be mixed with.

Polycarbonate (PC) generally refers to a polyester having a carbonate bond formed by a condensation reaction between a divalent hydroxy compound and carbonic acid. There are a solvent method and a melting method of polycarbonate, and the solvent method widely used worldwide is chlorinated in a suspension of an aqueous alkali solution of Bisphenol A (4,4-dihydro-xydiphenyl 2,2-propane) and an organic solvent. Carbonyl is blown and polymerized.

The characteristics of general polycarbonate are excellent in mechanical strength and electrical insulation, transparent, softening temperature of 140 to 150 ° C and high heat resistance. On the other hand, when contacted with an organic solvent such as halogenated hydrocarbons, aromatic hydrocarbons, esters, ketones and ethers, cracking occurs or the surface melts. Polycarbonate is used for extrusion blow and injection molding, and is often used as a substitute for acryl and as a supplement for general flat glass. It is also used for food containers, food, cutlery, and molded parts of milk bottles.

The polycarbonate used in the present invention may be used that is generally used in the art, it is not particularly limited. However, the polycarbonate according to an embodiment of the present invention may be a polycarbonate obtained from recycled resin.

Acrylonitrile-butadiene-styrene (ABS) is a copolymer obtained by polymerizing acrylonitrile (AN), butadiene, and styrene. It is a pale ivory-colored solid, which is easy to color, has good surface gloss, and has mechanical and electrical properties. It has excellent chemical resistance and is mainly used for home and office electronics and automobile surface materials. In addition, ABS resin is a material resistant to impact and heat, compared to general plastics, and has a strong material, but has excellent workability and various colors. Acrylo-butadiene-styrene (ABS) in the present invention is a disadvantage of the polycarbonate is used to compensate for the high melt viscosity and low fluidity is difficult to form, having a low chemical resistance.

Acrylonitrile-butadiene-styrene (ABS) used in the present invention may be used that is generally used in the art, it is not particularly limited. However, acrylonitrile-butadiene-styrene according to one embodiment of the present invention may be acrylonitrile-butadiene-styrene obtained from recycled resin.

Meanwhile, the eco-friendly blend resin composition including glass fibers of the present invention includes polyethylene terephthalate (PET), high strength styrene (HIPS), and fluorine-based compounds in addition to acrylonitrile-butadiene-styrene (ABS) as a material to compensate for the disadvantages of polycarbonate. Mixtures may be included.

As described above, by including a mixture of polyethylene terephthalate (PET), high-strength styrene (HIPS) and fluorine-based compounds in addition to ABS, it is possible to secure excellent impact resistance and scratch resistance even if the amount of ABS used is reduced compared to the prior art. High ABS usage reduces manufacturing costs and increases the compatibility between PC and ABS.

In addition, by including a mixture of polyethylene terephthalate (PET), high strength styrene (HIPS) and fluorine-based compounds in addition to ABS as described above, at least one material selected from polycarbonate and acrylonitrile-butadiene-styrene is obtained from recycled resin. Even if it is, it is possible to secure the same physical properties and effects as those using new materials (materials not obtained from recycled resins).

In more detail, in one embodiment of the present invention, in addition to ABS as a resin to compensate for the shortcomings of the PC, the resin further included is a mixture of polyethylene terephthalate (PET), high strength styrene (HIPS) and fluorine-based compounds.

First, polyethylene terephthalate (PET) resin is thermoplastic as a resin having high transparency and good heat insulating property, and is also called PET (PET). It is used for wire sheathing, household goods, toys, electrical insulators, radio and television cases, and packaging materials. It accounts for most of the plastic beverage bottles on the market, and the most commonly called PET bottles are bottles made from this material. On the other hand, the PET resin is particularly excellent in heat resistance, the melting point is 265 ℃, the heat deformation temperature is 240 ℃, the continuous heat resistance temperature is 140 ℃. On the other hand, the PET molded article is characterized by being rigid and strong mechanical strength, excellent electrical properties and excellent chemical resistance oil resistance.

Polyethylene terephthalate (PET) resin used in the present invention can be used according to the method commonly used in the art, which increases the compatibility between the PC and ABS, and the impact resistance of the plastic product produced It serves to strengthen.

High-strength polystyrene (HIPS) resin is a copolymer obtained by polymerizing styrene and butadiene. It has excellent impact resistance, mechanical properties, excellent processability, excellent colorability, and is suitable for food hygiene standards. do. In general, HIPS has a rubber content of about 5 to 16%, and is an opaque resin, which is mainly used in a product requiring high impact resistance due to its high impact strength. In addition, it has excellent processing characteristics such as heat resistance and fluidity, so that products can be made by various processing methods such as injection, extrusion, vacuum molding, and blow molding.

The high-strength polystyrene (HIPS) resin used in the present invention may be prepared according to a method generally used in the art, which is lower in cost than ABS resin, but has an effect of strengthening impact resistance on a PC such as ABS. It plays a role of granting.

Fluorine-based compounds are synthetic resins having a structure such as polyethylene composed of C-C bonds in which part or all of polyethylene hydrogen is replaced with fluorine atoms, and have a very safe molecular structure and can be used from low temperature to high temperature. 70% of the fluorocarbon resin is polytetrafluoroethylene (PTFE), which is a crystalline resin known under the trade name 'Teflon'. It is heat-resistant, resistant to long-term use at 260 ℃, and has chemical resistance, electrical insulation, and high frequency characteristics. It is a plastic excellent in non-tackiness, low friction coefficient and flame retardancy. The excellent properties of the fluorine resin are due to the strong binding energy between fluorine and carbon (CF binding energy 110-116 Kcal / mol). PTFE, which is surrounded by fluorine all around the carbon main chain, has the best properties. It is widely used in the field where it is distinguished from other polymers due to the addition of low friction and weather resistance. Heat resistant fluorine resins are flame retardant and have excellent heat resistance. In particular, tetrafluoroethylene (TFE) and perfluoroalkoxy (PFA) can be used at a commercial temperature of 260 ° C and a short time up to 300 ° C. Fluorinated ethylene propylene (FEP) is about 50 ° C. lower and polychlorotrifluoroethylene (PCTFE) can be used up to 120 ° C. Chemical-resistant fluororesins exhibit good resistance to all chemicals. PTFE, FEP and PFA are stable against all chemicals except fluorine gas, chlorine trifluoride and molten alkali metals and are not eroded by all acids, alkalis, oxidants and organic solvents. In addition, the fluorine resin has good electrical insulation and high frequency characteristics. In particular, PTFE has the highest dielectric constant and dielectric loss tangent and excellent insulation over a wide frequency range. The friction and abrasion properties have the lowest coefficient of friction compared to all solids, especially self-lubricating. No sticky substance is adhered to the non-tacky fluororesin. PTFE is particularly strong in nature and easily falls off when it comes into contact with sticky materials.

The fluorine-based compound used in the present invention may be prepared according to a method generally used in the art, which serves to increase scratch resistance in the plastic product to be produced.

Meanwhile, in one embodiment of the present invention, the fluorine-based compound may be PTFE, and the average particle size of PTFE used may be 2 to 3 μm. When the fluorine-based compound used in the present invention is PTFE, and the particle size of the PTFE is within the above range, a small amount of use makes it possible to secure excellent scratch resistance.

In one embodiment of the present invention, the blend resin composition including the glass fiber is based on 100 parts by weight of polycarbonate (PC), 9 to 12 parts by weight of acrylonitrile-butadiene-styrene (ABS); 18 to 21 parts by weight of a mixture of polyethylene terephthalate (PET), high strength styrene (HIPS) and fluorine-based compounds.

When acrylonitrile-butadiene-styrene (ABS) is included in the composition in the composition below the weight part range, high melt viscosity and low fluidity, which are pointed out as a disadvantage of polycarbonate, are difficult to mold, and have a low chemical resistance. It is difficult to do, and when included in excess of the weight part range may be a problem that the manufacturing cost increases due to the use of high ABS costs, the economic efficiency is low, there is a problem of low compatibility with polycarbonate.

On the other hand, the mixture of polyethylene terephthalate (PET), high strength styrene (HIPS) and fluorine-based compound in the composition may be included in 18 to 21 parts by weight. When the material is included in the range below the weight part, it is difficult to sufficiently exert the effect of replacing ABS, and the effect of improving compatibility between polycarbonate and acrylonitrile-butadiene-styrene is insignificant, and impact resistance and scratch resistance Enhancement effect may be minimal. On the other hand, when one or more of the selected materials are included in excess of the weight part range, manufacturing costs may increase, transparency may be degraded, or blending may be difficult.

On the other hand, according to one embodiment of the present invention, polyethylene terephthalate, high strength styrene and fluorine-based compounds are used at the same time, in detail, the polyethylene terephthalate, high-strength styrene and fluorine-based compounds used are 1: 2 to 4: 0.1 to 0.3 of It may be used in a weight ratio. More specifically, it may be used in a weight ratio of 1: 3: 0.2. When used in the weight part ratio, it is sufficient to express the effect of replacing the ABS to reduce the manufacturing cost and increase the compatibility between the PC and ABS, easy to blend, and also excellent impact resistance and scratch resistance of the finally produced plastic material do.

On the other hand, according to one embodiment of the present invention, further comprising an inorganic filler in the blend resin composition containing the glass fiber, the inorganic filler may be included for impact resistance, scratch resistance, heat resistance and rigidity reinforcement. In one embodiment of the present invention, the inorganic filler is glass fiber; And at least one selected from the group consisting of talc, calcium carbonate, calcium sulfate, magnesium oxide, calcium stearate, wollastonite, mica, silica, calcium silicate, clay and carbon black; A mixture of these 2: 1 to 3: 1 by weight ratio can be used. Specifically, as the inorganic filler, glass fibers; And mica; Or glass fiber; And a composition in which mica and carbon black are mixed. It may be used by mixing in a weight ratio of 2: 1 to 3: 1.

In the present invention, it is preferable to use fillers in which the impact resistance and scratch resistance of the resin composition are increased with increasing content, in particular, glass fiber and the talc, calcium carbonate, calcium sulfate, magnesium oxide, calcium stearate, wollastonite, and mica. At least one selected from the group consisting of silica, calcium silicate, clay and carbon black may be mixed in the above weight ratio to ensure greater scratch resistance when used.

Specifically, in one embodiment of the present invention, the inorganic filler included in the blend resin composition including the glass fiber may be included in an amount of 2 to 4 parts by weight based on 100 parts by weight of polycarbonate (PC). When included below the above range, impact resistance, scratch resistance, heat resistance and rigidity reinforcing effects are insignificant, and when included in the above range, there is a risk of lowering the transparency of the product, there may be a problem that the workability is lowered. .

On the other hand, the inorganic filler used in one embodiment of the present invention is glass fiber; And a composition in which mica and carbon black are mixed; Glass fiber; And a composition in which mica and carbon black are mixed in a weight ratio of 10: 2 to 3; and may be used by mixing in a weight ratio of 2: 1 to 3: 1, and transparency is used when an inorganic filler mixed in the numerical range is used. It is possible to obtain the impact resistance, scratch resistance increase effect and heat resistance and stiffness reinforcement effect with a small dose, without lowering, especially the scratch resistance is further improved compared to the prior art.

On the other hand, the environmentally friendly blended resin composition including the glass fiber of the present invention may further include an antioxidant, heat stabilizer, mold release agent, lubricant, ultraviolet stabilizer and the like as other processing aids. For example, the processing aid may be used in an amount of 0.5 to 3.5 parts by weight based on 100 parts by weight of the environmentally friendly blend resin composition.

Eco-friendly plastic material

On the other hand, in one embodiment of the present invention as a plastic material manufactured from an environmentally friendly blend resin composition including the glass fiber described above, the material has a laminated structure in which the inner layer, the middle layer and the outer layer are sequentially laminated, the outer layer is the inner layer and the middle layer Compared to the ABS content is relatively high, the inner layer is less ABS content than the outer layer, but the ABS content is relatively higher than the middle layer, the middle layer is an eco-friendly plastic material characterized in that the ABS content is relatively low compared to the outer and inner layers to provide.

Eco-friendly plastic material, including the glass fiber prepared as described above can ensure excellent impact resistance and scratch resistance even if the amount of ABS used compared to the prior art. Furthermore, in the case where the manufactured plastic material has a multilayer structure as described above, even if PC and ABS obtained from recycled resin are used in the eco-friendly blend resin composition, a level of impact resistance and scratch resistance suitable for the purpose of a desired vehicle bumper, car door trim, etc. Will have

Therefore, the eco-friendly plastic material including the glass fiber according to an embodiment of the present invention can be used for automobile bumpers, the eco-friendly plastic material according to another embodiment of the present invention can be used for automotive door trim applications.

On the other hand, eco-friendly plastic material including glass fiber according to an embodiment of the present invention may be made of an eco-friendly blend resin composition containing at least one selected from polycarbonate and acrylonitrile-butadiene-styrene obtained from recycled resin. have.

On the other hand, according to an embodiment of the present invention, the plastic material obtained as described above may have an impact resistance of 85% or more compared to the material manufactured using the new material. In addition, according to another embodiment of the present invention, the plastic material obtained as described above may have a scratch resistance of 92% or more compared to the material manufactured using the new material.

Hereinafter, the configuration and operation of the present invention through the preferred embodiment of the present invention will be described in more detail. However, this is presented as a preferred example of the present invention and in no sense can be construed as limiting the present invention. Details that are not described herein will be omitted since those skilled in the art can sufficiently infer technically.

Example

Example 1

Ethylbenzene was added to the reaction vessel as a solvent, 10kg of recycled polycarbonate (Lotte Chemical) was put into the reaction vessel, and then 1kg of recycled ABS-CHMA polymer (Lotte Advanced Materials), 0.47kg of PET (SK Chemical), HIPS (Hyundai) 1.42 Kg and 0.096kg of PTFE (3M) and 0.2kg of glass fiber, 0.08kg of mica and 0.02kg of carbon black were added as inorganic fillers and stirred for 1 hour to obtain an eco-friendly blend resin composition including glass fiber.

Example 2

In the same manner as in Example 1, except that 0.1kg of mica was added and no carbon black was added.

Comparative Example 1

According to the prior art, ethylbenzene was added to the reaction vessel as a solvent, 10 kg of polycarbonate (Lotte Chemical) was added to the reaction vessel, and then 3 kg of ABS-CHMA polymer (Lotte Advanced Materials) was added and stirred for 1 hour to prepare a blend resin composition. Got it.

Comparative Example 2

The same procedure as in Example 1 was carried out except that glass fibers, mica, and carbon black were not added as inorganic fillers.

Experiment

The blend resin composition obtained in Examples 1 and 2 and Comparative Examples 1 and 2 was introduced into a 280 ° C. extruder to prepare a resin in a pellet state.

Experiment 1

The blend resin compositions prepared in Examples 1 and 2 and Comparative Examples 1 and 2 were injection molded at 280 ° C. to prepare a resin in a sheet form, and the physical properties thereof were measured by the following methods and shown in Table 2.

1) Impact Strength: (1/4 ", kgcm / cm): Measured according to ASTM D256 method (Izod Impact).

2) Scratch resistance: Typical scratch resistance evaluation methods include pencil hardness test, five finger test, sapphire ball test, and scratch resistance based on GM automobile standard GMW14688, which is widely used in the automotive industry recently. Evaluating is a trend. In accordance with this trend, in the present embodiment, scratch resistance was evaluated using the German Ericsson company 430P based on GMW14688. Specifically, using a hard metal pen r = 0.05 that satisfies the ISO 18262 standard (minimum 485 HV) as a test tip, load (10 N), width (2 mm) at a speed of 1000 ± 50 mm / min The color ΔL value for the X longitudinal (2 mm) scratching screen net was measured to evaluate this value as scratch resistance. Higher ΔL means a greater degree of surface whitening and a greater degree of scratching.

As can be seen in Table 2, the plastic material prepared according to Examples 1 to 2 of the present invention does not use a specific combination of inorganic fillers including a specific combination of Comparative Example 1 and glass fibers mixed only PC and ABS in a specific weight ratio Compared with Comparative Example 2, which has almost the same level of impact resistance, the unit price is significantly reduced compared to Comparative Example 1, resulting in higher economic efficiency, and having a value of 1 or less in the scratch resistance value, thereby providing a significant scratch resistance of equal or more. It showed that the characteristic was shown.

Example 3

Ethylbenzene was added to the reaction vessel as a solvent, 10kg of recycled polycarbonate (Lotte Chemical) was put into the reaction vessel, and then 1kg of recycled ABS-CHMA polymer (Lotte Advanced Materials), 0.47kg of PET (SK Chemical), HIPS (Hyundai) 1.42 kg and PTFE (3M) 0.096kg, and 0.2kg glass fiber, mica 0.08kg, carbon black 0.02kg as an inorganic filler and stirred for 1 hour to obtain an eco-friendly blend resin composition, which was injection molded at 280 ℃ to form a sheet The inner layer was made of resin, and 10 kg of recycled polycarbonate (Lotte Chemical) was put in a reaction vessel, followed by 0.9 kg of recycled ABS-CHMA polymer (Lotte Advanced Materials), 0.52 kg of PET (SK Chemical), and HIPS (Hyundai). ) 1.45kg and PTFE (3M) 0.116kg, and 0.2kg glass fiber, mica 0.08kg, carbon black 0.02kg as an inorganic filler and stirred for 1 hour to obtain an eco-friendly blend resin composition, which was injection molded at 280 ℃ Number of forms After forming a middle layer of paper, 10kg of recycled polycarbonate (Lotte Chemical) was put in a reaction container, then 1.2kg of recycled ABS-CHMA polymer (Lotte Advanced Materials), 0.402kg of PET (SK Chemical), HIPS (Hyundai) ) 1.22kg and PTFE (3M) 0.082kg, and 0.2kg glass fiber, mica 0.08kg, carbon black 0.02kg as inorganic filler and stirred for 1 hour to obtain an eco-friendly blend resin composition, which was injection molded at 280 ℃ It was made of a resin of the form to form an outer layer, to obtain an environmentally friendly plastic material of a multi-layer structure.

Comparative Example 3

It was formed by injection molding at 280 ° C. with the blend resin composition of Comparative Example 1, but a plastic material was obtained in the same size and shape as in Example 3.

Experiment 2

The physical properties of the plastic material prepared in Example 3 and Comparative Example 3 was repeatedly measured three times in the same manner as in Experiment 1, and the results (measured and averaged on the outer and inner layers, respectively) are shown in Table 3.

As can be seen in Table 3, as shown, the plastic material prepared according to Example 3 of the present invention has almost the same level of impact resistance as compared to Comparative Example 3 in which only PC and ABS are mixed, Was markedly reduced compared to Comparative Example 3 to increase the economic efficiency, and it was confirmed that the scratch resistance exhibits a significant scratch resistance characteristic equivalent to or more.

Claims (4)

Polycarbonate (PC);
Acrylonitrile-butadiene-styrene (ABS);
Mixtures of polyethylene terephthalate (PET), high strength polystyrene (HIPS) and fluorine-based compounds; And
As an eco-friendly blend resin composition comprising; 2 to 4 parts by weight of an inorganic filler based on 100 parts by weight of the polycarbonate (PC),
At least one selected from the polycarbonate and acrylonitrile-butadiene-styrene is a recycled resin,
The blend resin composition is based on 100 parts by weight of polycarbonate (PC), 9 to 12 parts by weight of acrylonitrile-butadiene-styrene (ABS); 18 to 21 parts by weight of a mixture of polyethylene terephthalate (PET), high strength polystyrene (HIPS) and fluorine-based compounds,
In the mixture, polyethylene terephthalate (PET), high strength polystyrene (HIPS) and fluorine-based compound are mixed in a weight ratio of 1: 2 to 4: 0.1 to 0.3,
The inorganic filler is glass fiber; And a composition in which mica and carbon black are mixed in a weight ratio of 10: 2 to 3; and the eco-friendly blend resin composition comprising glass fibers in a weight ratio of 2: 1 to 3: 1.
A plastic material made of an eco-friendly blend resin composition comprising the glass fiber of claim 1,
The material has a laminated structure in which the inner layer, the middle layer and the outer layer are sequentially stacked,
The outer layer has a relatively higher ABS content than the inner and middle layers,
The inner layer is relatively less ABS content than the outer layer but the ABS content is relatively higher than the middle layer,
The middle layer is an eco-friendly plastic material, characterized in that the ABS content relatively less than the outer layer and the inner layer.
The plastic material of claim 2 is an environmentally friendly plastic material used for automobile bumpers.
The plastic material of claim 2 is an environmentally friendly plastic material used for automotive door trim purposes.