KR101716223B1 - Polyketone vehicle inter cooler airduct and method for manufacturing of the same - Google Patents

Abstract

The present invention relates to an automobile intercooler air duct manufactured by injection molding a blend of a glass fiber and a mineral filler and a linear alternating polyketone composed of carbon monoxide and at least one ethylenically unsaturated hydrocarbon. More particularly, And more particularly, to a polyketone automobile intercooler air duct having a high deformation temperature and a method of manufacturing the same.

Description

TECHNICAL FIELD The present invention relates to a polyketone automobile intercooler air duct and a manufacturing method thereof,

The present invention relates to an automobile intercooler air duct manufactured by injection molding a polyketone blend, and more particularly to an automobile intercooler air duct exhibiting excellent dimensional stability and heat distortion temperature.

Generally, a vehicle engine requires fuel and air to operate, and air is injected into the engine through an intake system. In this case, the intake system is provided with an intercooler air duct in which external air is sucked through the inlet and guided to the engine, and an air cleaner is provided between the engine and the intercooler air duct for filtering foreign matter in the sucked outside air. An intake hose is provided between the air cleaner and the engine.

However, currently used material for automobile intercooler air duct is formed by blending nylon 66 with glass fiber and mineral filler. The material properties such as processability, dimensional stability and heat resistance of this material are used for automobile intercooler air It was not enough to be used as a duct.

On the other hand, Polyketone (PK) is a material that is low in raw material and polymerization process ratio compared to general engineering plastic materials such as polyamide, polyester and polycarbonate. It has excellent properties such as heat resistance, chemical resistance, fuel permeability and abrasion resistance It is widely applied to various industries.

For this reason, there is a growing interest in a family of linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon, known as polyketones or polyketone polymers. U.S. Patent No. 4,880,903 discloses a linear alternating polyketone terpolymer consisting of carbon monoxide, ethylene and terephthalic unsaturated hydrocarbons such as propylene. The process for preparing the polyketone polymer is generally carried out by reacting a compound of a Group VIII metal selected from among palladium, cobalt or nickel with an anion of a strong halogen-hydrohalogentic acid, , Phosphorus, arsenic, or antimony (Antimon). U.S. Patent No. 4,843,144 discloses a process for producing a polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon by using a palladium compound, an anion of a nonhydrohalogenic acid having a pKa of less than 6, and a catalyst which is a bidentate ligand Lt; / RTI >

Disclosed is a polyketone molded article, a polyketone automobile intercooler air duct, and a method for producing the same, which have excellent dimensional stability and heat distortion temperature by using polyketone, glass fiber, and mineral filler.

In order to achieve the above object, according to a preferred embodiment of the present invention, a blend of carbon monoxide and at least one olefinic hydrocarbon-containing linear alternating polyketone, glass fiber and mineral filler is injection- Wherein the glass fiber is 5 to 30% by weight based on the total weight of the blend, and the mineral filler is 10 to 20% by weight.

Specifically, the polyketone copolymer has an intrinsic viscosity of 1.0 to 2.0 dl / g, a polyketone copolymer has a molar ratio of ethylene to propylene of 9 to 24: 1, a polyketone copolymer has a molecular weight distribution of 1.5 to 2.5, The ligand of the catalyst composition used in the polymerization of the polyketone is a bis (bis (2-methoxyphenyl) phosphine (bis (2,2-dimethyl-1,3-dioxane-5,5- The present invention provides a polyketone automobile intercooler air duct.

The polyketone automobile intercooler air duct has a heat distortion temperature of 100 ° C or higher and a dimensional change rate of 1.5% or lower.

The present invention provides a polyketone molded article, a polyketone automobile intercooler air duct, and a method of manufacturing the same, which have excellent dimensional stability and heat distortion temperature by using polyketone, glass fiber and mineral filler.

The polyketone to be used in the present invention is a copolymer of repeating units derived from carbon monoxide, an ethylenically unsaturated compound and one or more olefinically unsaturated hydrocarbon compounds, three or more copolymers, particularly carbon monoxide-derived repeating units, and ethylenically unsaturated compounds, Is a structure in which repeating units derived from an unsaturated compound are substantially alternately linked and has excellent mechanical and thermal properties, excellent processability, high abrasion resistance, chemical resistance, and gas barrier properties. It is considered that the high molecular weight product of the copolymerized polyketone having three or more members is more useful as an engineering plastic material having higher workability and thermal properties and having excellent economy. Particularly, it has high abrasion resistance and can be used in light gasoline tanks because of high gas barrier properties such as parts of gears of automobiles, high chemical resistance, and lining materials of chemical transport pipes. In the case of using an ultrahigh molecular weight polyketone having an intrinsic viscosity of 2 or more as the fiber, it is possible to conduct stretching at a high magnification and to have a high strength and a high modulus of elasticity oriented in the stretching direction as belts, reinforcements of rubber hoses, tire cords, And is suitable for use in building materials and industrial materials.

The production method of polyketone is carried out in the presence of an organometallic complex catalyst comprising (a) a Group 9, 10 or 11 transition metal compound, and (b) a ligand having an element of Group 15 elements, Characterized in that the polyketone is prepared by ternary copolymerizing ethylenic and propylenically unsaturated compounds.

Wherein the catalyst comprises (a) a Group 9, 10 or 11 transition metal compound of the Periodic Table of the Elements (IUPAC Inorganic Chemical Nomenclature, 1989) and (b) a ligand having an element of Group 15 elements.

Examples of the Group 9 transition metal compound in the ninth, tenth, or eleventh group transition metal compound (a) include complexes of cobalt or ruthenium, carbonates, phosphates, carbamates, and sulfonates, Specific examples thereof include cobalt acetate, cobalt acetylacetate, ruthenium acetate, ruthenium trifluoroacetate, ruthenium acetylacetate, and ruthenium trifluoromethanesulfonate.

Examples of the Group 10 transition metal compounds include complexes of nickel or palladium, carbonates, phosphates, carbamates, sulfonates and the like. Specific examples thereof include nickel acetate, nickel acetylacetate, palladium acetate, palladium trifluoroacetate , Palladium acetylacetate, palladium chloride, bis (N, N-diethylcarbamate) bis (diethylamine) palladium and palladium sulfate.

Examples of the Group 11 transition metal compound include copper or silver complexes, carbonates, phosphates, carbamates, and sulfonates, and specific examples thereof include copper acetate, copper trifluoroacetate, copper acetylacetate, Examples of the fluoroacetic acid include silver acetyl acetate, trifluoromethanesulfonic acid and the like.

Of these, the transition metal compound (a), which is preferable inexpensively and economically, is nickel and copper compounds, and the preferable transition metal compound (a) in terms of the yield of the polyketone and the molecular weight is the palladium compound, It is most preferable to use palladium acetate.

Examples of the ligands (b) having an atom of Group XIII include 2,2'-bipyridyl, 4,4'-dimethyl-2,2'-bipyridyl, 2,2'- Bis (diphenylphosphino) ethane, 1,3-bis (diphenylphosphino) propane, 1,4-bis (diphenylphosphino) (2-methoxyphenyl) propane, 1,3-bis [di (2-isopropyl) Bis (diphenylphosphino) cyclohexane, 1,2-bis (diphenylphosphino) phosphine] propane, (Diphenylphosphino) methyl] benzene, 1,2-bis [[di (2-methoxyphenyl) (Diphenylphosphino) ferrocene, 2-hydroxy-1,3-bis [di (2-methoxy- (2-methoxyphenyl) phosphino] propane, 2,2-dimethyl-1,3-bis [di (2- Spinosyns; there may be mentioned a ligand, such as propane.

Among these ligands, preferred ligands (b) having a Group 15 element are phosphorus ligands having an atom of Group 15, and particularly preferred ligands in terms of yield of polyketone are 1,3-bis [di (2- Methoxyphenyl) phosphino] propane and 1,2-bis [[di (2-methoxyphenyl) phosphino] methyl] benzene, Di (2-methoxyphenyl) phosphino] propane, and it is safe in that it does not require an organic solvent. Soluble sodium salts such as 1,3-bis [di (2-methoxy-4-sulfonic acid sodium-phenyl) phosphino] propane, 1,2- ] Methyl] benzene, and 1,3-bis (diphenylphosphino) propane and 1,4-bis (diphenylphosphino) butane are preferred for ease of synthesis and availability in large quantities and economically. The preferred ligand (b) having a Group 15 atom is 1,3-bis [di (2-methoxyphenyl) phosphino] propane or 1,3-bis (diphenylphosphino) Bis (di (2-methoxyphenyl) phosphino] propane or ((2,2-dimethyl-1,3-dioxane-5,5- -Methoxyphenyl) phosphine).

[Chemical Formula 1]

.

.

Bis (bis (2-methoxyphenyl) phosphine) bis ((2,2-dimethyl-1,3-dioxane-5,5-diyl) bis Activity equivalent to that of 3,3-bis- [bis- (2-methoxyphenyl) phosphanylmethyl] -1,5-dioxa-spiro [5,5] undecane, which is known to exhibit the highest activity among polymerization catalysts The structure is simpler and has a lower molecular weight. As a result, the present invention has been able to provide a novel polyketone polymerization catalyst having the highest activity as a polyketone polymerization catalyst of the present invention, while further reducing its manufacturing cost and cost. A method for producing a ligand for a polyketone polymerization catalyst is as follows. ((2,2-dimethyl) -2,3-dioxolane was obtained by using bis (2-methoxyphenyl) phosphine, 5,5-bis (bromomethyl) Bis (bis (methylene)) bis (bis (2-methoxyphenyl) phosphine) is obtained by reacting a bis (methylene) . The process for preparing a ligand for a polyketone polymerization catalyst according to the present invention is a process for producing a ligand for a polyketone polymerization catalyst which comprises reacting 3,3-bis- [bis- (2-methoxyphenyl) phosphanylmethyl] -1,5-dioxa-spiro [5,5] ((2,2-dimethyl-1,3-dioxane-5,5-diyl) bis (methylene)) bis (bis (2- Methoxyphenyl) phosphine) can be commercially synthesized in a large amount.

In a preferred embodiment, the process for preparing a ligand for a polyketone polymerization catalyst of the present invention comprises: (a) introducing bis (2-methoxyphenyl) phosphine and dimethylsulfoxide (DMSO) into a reaction vessel under nitrogen atmosphere, Adding sodium and stirring; (b) adding 5,5-bis (bromomethyl) -2,2-dimethyl-1,3-dioxane and dimethylsulfoxide to the resulting mixture, followed by stirring and reacting; (c) adding methanol and stirring after completion of the reaction; (d) adding toluene and water, separating the layers, washing the oil layer with water, drying with anhydrous sodium sulfate, filtering under reduced pressure, and concentrating under reduced pressure; And (e) the residue was recrystallized from methanol to obtain ((2,2-dimethyl-1,3-dioxane-5,5- diyl) bis (methylene)) bis (bis (2- methoxyphenyl) And a step of acquiring the image data.

The amount of the Group 9, Group 10 or Group 11 transition metal compound (a) to be used varies depending on the kinds of the ethylenic and propylenically unsaturated compounds to be selected and other polymerization conditions. Therefore, But it is usually from 0.01 to 100 mmol, preferably from 0.01 to 10 mmol, per 1 liter of the reaction zone. The capacity of the reaction zone means the liquid phase capacity of the reactor. The amount of the ligand (b) to be used is not particularly limited, but is usually 0.1 to 3 mol, preferably 1 to 3 mol, per 1 mol of the transition metal compound (a).

Further, the addition of benzophenone in the polymerization of the polyketone is another characteristic. In the present invention, an effect of improving the intrinsic viscosity of the polyketone can be achieved by adding benzophenone in the polymerization of the polyketone. The molar ratio of (a) the ninth, tenth, or eleventh transition metal compound to benzophenone is 1: 5-100, preferably 1:40-60. If the molar ratio of the transition metal to the benzophenone is less than 1: 5, the effect of improving the intrinsic viscosity of the produced polyketone is unsatisfactory. If the molar ratio of the transition metal to the benzophenone exceeds 1: 100, It is not preferable because it tends to decrease

Examples of the ethylenically unsaturated compound copolymerized with carbon monoxide include ethylene, propylene, 1-butene, 1-hexene, 4-methyl-1-pentene, 1-octene, -Olefins such as hexadecene and vinylcyclohexane; Alkenyl aromatic compounds such as styrene and? -Methylstyrene; But are not limited to, cyclopentene, norbornene, 5-methylnorbornene, 5-phenylnorbornene, tetracyclododecene, tricyclododecene, tricyclodecene, pentacyclopentadecene, pentacyclohexadecene, Cyclic olefins such as cyclododecene; Vinyl halides such as vinyl chloride; Ethyl acrylate, and acrylates such as methyl acrylate. Of these, preferred ethylenically unsaturated compounds are? -Olefins, more preferably? -Olefins having 2 to 4 carbon atoms, and most preferably ethylene.

Wherein the carbon monoxide and the ethylenically unsaturated compound and the propylenically unsaturated compound are copolymerized with an organometallic complex comprising a ligand (b) having an element of group 9, group 10 or group 11 transition metal compound (a) or group 15 Catalyzed, the catalyst is produced by contacting the two components. Any method may be employed as the method of contacting. That is, the solution may be prepared as a solution in which two components are premixed in a suitable solvent, or the two components may be supplied separately to the polymerization system and contacted in the polymerization system.

As the polymerization method, a solution polymerization method using a liquid medium, a suspension polymerization method, a vapor phase polymerization method in which a small amount of a polymer is impregnated with a high concentration catalyst solution, and the like are used. The polymerization may be either batchwise or continuous. The reactor used in the polymerization can be used as it is or in a known manner. The polymerization temperature is not particularly limited, and is generally 40 to 180 占 폚, preferably 50 to 120 占 폚. The pressure at the time of polymerization is not particularly limited, but is generally from normal pressure to 20 MPa, preferably from 4 to 15 MPa.

A linear alternating polyketone is prepared by the polymerization method as described above.

On the other hand, the polyketone polymer of the present invention is a line-by-line alternating structure and substantially contains carbon monoxide per one molecule of unsaturated hydrocarbon. Ethylenically unsaturated hydrocarbons suitable for use as precursors of polyketone polymers have up to 20 carbon atoms, preferably up to 10 carbon atoms. Ethylenically unsaturated hydrocarbons can also be selected from the group consisting of ethene and alpha-olefins such as propene, 1-butene, iso-butene, 1- hexene, 1- octene, , Or an aryl aliphatic group containing an aryl substituent on another aliphatic molecule, particularly containing an aryl substituent on an ethylenically unsaturated carbon atom. Examples of aryl aliphatic hydrocarbons in ethylenically unsaturated hydrocarbons include styrene, p-methyl styrene, p-ethyl styrene and m-isopropyl styrene. The polyketone polymer preferably used in the present invention is a copolymer of carbon monoxide and ethene or a second ethylenically unsaturated hydrocarbon having carbon monoxide, ethene and at least three carbon atoms, in particular alpha-olefins such as propene Is a terpolymer.

When the polyketone terpolymer is used as the main polymer component of the blend of the present invention, there are at least two units containing an ethylene moiety in each unit containing the second hydrocarbon moiety in the terpolymer. It is preferable that the number of units containing the second hydrocarbon moiety is from 10 to 100.

The polymer ring of the polyketone polymer preferred in the present invention can be represented by the following formula (2).

(2)

- [CO- (-CH2-CH2-)] x- [CO- (G)] y-

In the general formula (2), G is an ethylenically unsaturated hydrocarbon, particularly a portion obtained from an ethylenically unsaturated hydrocarbon having at least three carbon atoms, and x: y is preferably at least 1: 0.01.

In another embodiment, the polyketone polymer is a copolymer comprising repeating units represented by the general formulas (1) and (2), and y / x is preferably 0.03 to 0.3. When the value of the y / x value is less than 0.03, there is a limit in that the meltability and processability are inferior. When the value of y / x is more than 0.3, the mechanical properties are poor. Further, y / x is more preferably 0.03 to 0.1.

- [- CH2CH2-CO] x- (1)

- [- CH2 --CH (CH3) - CO] y - (2)

In addition, the melting point of the polymer can be controlled by controlling the ratio of ethylene to propylene in the polyketone polymer. For example, when the molar ratio of ethylene: propylene: carbon monoxide is adjusted to 46: 4: 50, the melting point is about 220 ° C, while the melting point is adjusted to 235 ° C when the molar ratio is adjusted to 47.3: 2.7: 50.

Particularly preferred are polyketone polymers having a number average molecular weight of from 100 to 200,000, especially from 20,000 to 90,000, as measured by gel permeation chromatography. The physical properties of the polymer are determined according to the molecular weight, depending on whether the polymer is a copolymer or a terpolymer and, in the case of a terpolymer, the properties of the second hydrocarbon part. The melting point of the total of the polymers used in the present invention is 175 ° C to 300 ° C, and generally 210 ° C to 270 ° C. The intrinsic viscosity (LVN) of the polymer measured by HFIP (hexafluoroisopropyl alcohol) at 60 DEG C using a standard tubular viscosity measuring apparatus is 0.5 dl / g to 10 dl / g, preferably 0.8 dl / g to 4 dl / g, And more preferably 1.0 dl / g to 2.0 dl / g. If the intrinsic viscosity is less than 0.5 dl / g, the mechanical properties are deteriorated. If the intrinsic viscosity exceeds 10 dl / g, the workability is deteriorated.

On the other hand, the molecular weight distribution of the polyketone is preferably 1.5 to 2.5, more preferably 1.8 to 2.2. When the ratio is less than 1.5, the polymerization yield decreases. When the ratio is 2.5 or more, the moldability is poor. In order to control the molecular weight distribution, it is possible to adjust proportionally according to the amount of the palladium catalyst and the polymerization temperature. That is, when the amount of the palladium catalyst is increased or when the polymerization temperature is 100 ° C or higher, the molecular weight distribution becomes larger.

On the other hand, the polyketone molded article of the present invention is composed of a blend composed of a combination of polyketone, glass fiber, and mineral filler, and is characterized by improving workability and dimensional stability with respect to materials used in the past.

The glass fiber preferably has a particle diameter of 10 to 13 mu m. If the particle diameter of the glass fiber is less than 10 mu m, the shape of the glass fiber may be changed and the mechanical properties may be deteriorated.

The composition ratio of the polyketone to the glass fiber is preferably 5 to 30% by weight of the glass fiber relative to the total blend. When the content of the glass fiber is less than 5% by weight, the mechanical stiffness may be deteriorated. When the content of the glass fiber exceeds 30% by weight, the viscosity may excessively increase and the extrusion and injection workability may be deteriorated.

The blend of the present invention also contains a mineral filler, which serves to prevent the warping properties of the article. As the mineral filler, for example, silica (SiO2), magnesium oxide (MgO), talc, calcium carbonate, asbestos, kaolin and the like can be used, and other minerals can be used as needed and are not limited to a specific kind. However, in the present invention, it is preferable to use mineral filler mixed with 60 to 75% by weight of silica and 25 to 40% by weight of magnesium oxide as a mineral filler. The average particle diameter of the mineral filler is preferably 4 to 6 mu m. The mineral filler is preferably contained in the blend of the present invention in an amount of 10 to 20% by weight. If the content of the mineral filler is less than 10% by weight, the product may be warped, and if it exceeds 20% by weight, the impact strength of the product may deteriorate and the appearance may be deteriorated.

In the present invention, conventionally known additives such as an antioxidant, a stabilizer, a filler, a refractory material, a releasing agent, a coloring agent and other materials may be included in order to improve processability and physical properties of the polymer. The molded article can be produced by extrusion molding or injection molding of the polyketone as described above.

On the other hand, the blend composition of the polyketone, glass fiber and mineral filler of the present invention as described above is formed by a method such as extrusion and injection, and is made of a polyketone molded product, which is characterized by excellent processability, dimensional stability and flexural modulus. At this time, the polyketone molded product has a product moisture absorption rate of 2.0% or less and a property retention ratio of 70% or more upon water absorption. The impact strength is 10 kJ / m 2 or more, preferably 15 kJ / m 2 or more.

On the other hand, it is possible to produce the molded polyketone product by injection molding with an automobile intercooler air duct.

Hereinafter, a production method for producing the polyketone molded article as described above is as follows.

The method for producing a polyketone molded article of the present invention comprises the steps of: preparing a catalyst composition comprising a palladium compound, an acid having a pKa value of 6 or less, and a bidentate compound of phosphorus; Preparing a mixed solvent (polymerization solvent) containing an alcohol (for example, methanol) and water; Conducting the polymerization in the presence of the catalyst composition and the mixed solvent to prepare a linear terpolymer of carbon monoxide, ethylene and propylene; Removing the remaining catalyst composition from the linear terpolymer with a solvent (e.g., alcohol and acetone) to obtain a polyketone resin; And extruding a blend of the polyketone resin and the glass fiber.

As the palladium compound constituting the catalyst composition, palladium acetate can be used, and the amount of the palladium compound used is suitably 10 ^-3 to 10 ^-1 mole.

As the acid having a pKa value of 6 or less constituting the catalyst composition, at least one selected from the group consisting of trifluoroacetic acid, p-toluenesulfonic acid, sulfuric acid and sulfonic acid, preferably trifluoroacetic acid, may be used. 6 to 20 (mol) equivalents relative to the compound is appropriate.

Examples of the bidentate ligand compound constituting the catalyst composition include 1,3-bis [diphenylphosphino] propane (e.g., 1,3-bis [di (2-methoxyphenylphosphino)] propane, Bis [bis [anisyl] phosphinomethyl] -1,5-dioxaspiro [5,5] undecane and ((2,2-dimethyl-1,3-dioxane-5,5-diyl) bis Methylene)) bis (bis (2-methoxyphenyl) phosphine) may be used, and the amount thereof is suitably 1 to 1.2 (mol) relative to the palladium compound.

The carbon monoxide, ethylene and propylene are liquid phase polymerized in a mixed solvent of alcohol (e.g. methanol) and water to produce a linear terpolymer. As the mixed solvent, a mixture of 100 parts by weight of methanol and 2 to 10 parts by weight of water may be used. If the content of water in the mixed solvent is less than 2 parts by weight, a ketal may be formed to lower the heat stability in the process. If the amount is more than 10 parts by weight, the mechanical properties of the product may be deteriorated.

The polymerization temperature is preferably in the range of 50 to 100 ° C and the reaction pressure in the range of 40 to 60 bar. The resulting polymer is recovered through filtration and purification processes after polymerization, and the remaining catalyst composition is removed with a solvent such as alcohol or acetone.

In the present invention, the obtained polyketone resin is extruded by an extruder to finally obtain a polyketone resin. The polyketone resin is produced by putting into a twin-screw extruder, melt-kneading and extruding.

In this case, the extrusion temperature is preferably 230 to 260 ° C, and the screw rotation speed is preferably in the range of 100 to 300 rpm. If the extrusion temperature is less than 230 캜, kneading may not occur properly, and if the extrusion temperature exceeds 260 캜, problems related to the heat resistance of the resin may occur. If the screw rotational speed is less than 100 rpm, smooth kneading may not occur. If the screw rotational speed is more than 300 rpm, dispersion of glass fiber and destruction of fiber structure may occur, and mechanical properties may be deteriorated.

A polyketone molded product can be produced by preparing a resin and injecting it by the above-mentioned method. In addition, the extruded polyketone moldings could be made with automotive intercooler air ducts.

In addition, the polyketone molded product produced according to the present invention has not only excellent processability but also a low dimensional strain.

Hereinafter, the constitution and effects of the present invention will be described in detail with reference to specific examples and comparative examples. However, these examples are merely intended to clearly understand the present invention and are not intended to limit the scope of the present invention. The present invention will be described in detail with reference to the following non-limiting examples.

Example  One

The linear alternating polyketone terpolymer of carbon monoxide and ethylene and propene is prepared by reacting palladium acetate, trifluoroacetic acid and ((2,2-dimethyl-1,3-dioxane-5,5-diyl) bis (methylene) Bis (2-methoxyphenyl) phosphine). In the above, the content of trifluoroacetic acid with respect to palladium is 10 times the molar ratio, and the two stages of the first stage at a polymerization temperature of 78 占 폚 and 84 占 폚 are carried out. The molar ratio of ethylene to propene in the polyketone terpolymer prepared above was 46 to 4. The melting point of the polyketone terpolymer was 220 占 폚, the LVN measured at 25 占 폚 by HFIP (hexa-fluoroisopropano) was 1.4 dl / g, and the MWD was 2.0. 75 wt% of the polyketone terpolymer prepared above, 15 wt% of mineral filler mixed with 10 wt% of glass fiber, 60-75 wt% of silica and 25-40 wt% of magnesium oxide and having a diameter of 40 mm operating at 250 rpm , And L / D = 32 in the form of pellets on an extruder, and injection molded to prepare an automotive intercooler air duct specimen.

Example  2

The same as Example 1 except that the content of the glass fiber in Example 1 was set to 5 wt% and the content of the mineral filler was set to 10 wt%.

Example  3

The same as Example 1 except that the content of the glass fiber in Example 1 was set to 20% by weight and the content of the mineral filler was set to 20% by weight.

Comparative Example  One

The same as Example 1 except that nylon 66 was used as a material of DuPont Co. instead of polyketone.

Property evaluation

The prepared pellets of the above examples were injection-molded to produce automobile intercooler air duct specimens. The properties of the specimens were evaluated in the following manner in comparison with the products of the comparative examples. The results are shown in Table 1 below.

1. Evaluation of dimensional change ratio: Evaluation was made according to MS211-47 for vertical and horizontal directions at a temperature of 50 DEG C and a relative humidity of 90%.

2. Evaluation of thermal deformation temperature: ASTM D648 (test condition: 1.82 MPa).

division Dimensional change rate
(%) Heat deformation temperature (캜) Comparative Example 1 5.2 65 Example 1 1.1 105 Example 2 1.3 102 Example 3 1.5 102

As shown in Table 1, in the case of Examples, the dimensional stability after heat treatment was lower than that of Comparative Example 1 and the dimensional stability was evaluated to be excellent.

Also, the heat distortion temperature was evaluated to be higher than that of Comparative Example 1.

Accordingly, the automobile intercooler air duct manufactured through the embodiment is excellent in thermal deformation temperature and dimensional stability, and is thus suitable for application as an automobile intercooler air duct.

Claims (6)

1. An automobile intercooler air duct manufactured by injection molding a blend of carbon monoxide and at least one olefinic hydrocarbon, which is a mixture of linear alternating polyketone, glass fiber and mineral filler,
Wherein the polyketone has an intrinsic viscosity of 1.0 to 2.0 dl / g, the glass fiber is 5 to 30 wt% based on the total blend, the mineral filler is 10 to 20 wt%
The ligand of the catalyst composition used in the polymerization of the polyketone is bis (methylene) bis (bis (2-methoxyphenyl) phosphine Pin)
The automobile intercooler air duct has a heat distortion temperature of 102 to 105 ° C and a dimensional change rate of 1.1 to 1.5% evaluated in accordance with MS 211-47 with respect to vertical and horizontal directions under conditions of a temperature of 50 ° C and a relative humidity of 90% Features a polyketone automobile intercooler air duct. delete delete The method according to claim 1,
Wherein the polyketone has a molecular weight distribution of 1.5 to 2.5. delete delete