CN1564850A - Insert-molded article - Google Patents

Abstract

An insert-molded article which has highly excellent impact properties at exceedingly low temperatures, is reduced in the amount of mold deposits generated, and is suitable for use in various industrial fields. It is obtained by subjecting a resin composition comprising A 100 parts by weight of a polyarylene sulfide resin, B 0.5 to 25 parts by weight of a graft copolymer comprising an olefin copolymer obtained from an alpha-olefin and the glycidyl ester of an alpha,ss-unsaturated acid and a specific copolymer chemically bonded to the olefin copolymer so as to form a branch or crosslink, C 0.5 to 15 parts by weight of a silicone oil, and D 20 to 250 parts by weight of an inorganic filler to insert molding together with a metal or inorganic solid.

Description

Insert molding

technical field

The present invention relates to an insert-molded product formed by insert-molding a specific resin composition and a metal or an inorganic solid, and more specifically relates to an insert-molded product with improved high-low temperature impact properties.

Background technique

The insert molding method is a molding method that uses the characteristics of resin and the characteristics of metal or inorganic solid (hereinafter referred to as metal, etc.) materials to embed metal, etc. in resin, and is widely used in automotive parts, electrical and electronic parts, OA machine parts, etc. field, which has now become a common molding method.

However, since the expansion and contraction rate (so-called linear expansion coefficient) caused by temperature changes are very different in resins and metals, etc., when the resin part of the molded product is thin, or the thickness of the molded product has a large change When the part and metal have an acute angle (シャプココナナ), there are many failures that cracks will appear immediately after molding, or cracks will occur due to temperature changes during use. Therefore, its use, the shape of molded products, and the like are currently largely limited.

At the same time, in the automotive field, resinization around engines has recently progressed, and insert molded products have also become very important parts. Especially in the parts of ignition system and distribution box, aluminum, copper, iron, Research on insert molded products of metal parts such as brass. The structure of the insert parts of these molded products is complicated, and the wall thickness of the resin changes a lot. In addition, since the place of use is near the engine, the temperature changes greatly. , so the performance requirements for insert molded products are also very high. In view of these circumstances, there has recently been a strong demand for resins that can withstand high and low temperature changes for a long time, that is, resins that are excellent in high and low temperature impact properties.

PAS resin has high heat resistance, mechanical physical properties, chemical resistance, dimensional stability, and flame retardancy, so it is widely used in electrical and electronic equipment parts materials, automotive machinery parts materials, chemical machinery parts materials, etc. However, PAS resin has the disadvantages of lack of toughness and brittleness, and its insert molded products have poor reliability when subjected to high and low temperature changes for a long time.

It is well known that as a known method to solve this problem, various kinds of elastic bodies are compounded. However, the processing temperature of PAS resin is 300°C or above, so the elastomer is prone to thermal aging, so the molding deposition (Model deposit) is significantly increased, so it is difficult to improve the high and low temperature impact characteristics simply by using this method.

invention disclosure

In consideration of the above problems, the inventors of the present invention conducted intensive studies to obtain insert molded products with excellent high-low temperature impact properties. The composition can significantly improve the high and low temperature impact characteristics without greatly reducing the mechanical and physical properties (especially when the resin is in a thin state, or when the metal has an acute angle), and the amount of molding deposits during molding is also small, so that The present invention has been accomplished.

That is, the present invention is an insert molded product characterized in that it is relatively

(A) 100 parts by weight of polyarylene sulfide resin mixed with

(B) On the olefin-based copolymer composed of α-olefin and glycidyl ester of α, β-unsaturated acid, one or both of the repeating units represented by the following general formula (1) are chemically bonded Or two or more polymers or copolymers, forming branched or crosslinked graft copolymers of 0.5 to 25 parts by weight

(In the formula, R represents hydrogen or lower alkyl, and X represents -COOCH ₃ , -COOC ₂ H ₅ , -COOC ₄ H ₉ , -COOCH ₂ CH(C ₂ H ₅ )C ₄ H ₉ , -C ₆ H _5. One, two or more groups selected from -CN).

(C) 0.5-15 parts by weight of silicone oil

(D) 20-250 parts by weight of inorganic filler

It is formed by insert molding of resin composition and metal or inorganic solid.

Detailed Description of the Invention

The order of constituent components of the resin material of the present invention will be described in detail below. The PAS resin used as the component (A) in the present invention mainly has -(Ar-S)-(wherein, Ar is an arylene group) as a repeating unit. As arylene groups, for example, p-phenylene, m-phenylene, o-phenylene, substituted phenylene, p,p'-diphenylenesulfo, p,p'-biphenylene Phenyl, p, p'-diphenylene ether group, p, p'-diphenylene carbonyl group, naphthylene group, etc. At this time, in the arylene sulfide group composed of the above-mentioned arylene group, in addition to using a polymer having the same repeating unit, that is, a homopolymer, it is sometimes preferable to use a compound containing a different repeating unit from the viewpoint of processability of the composition. unit copolymers.

As the homopolymer, it is particularly preferable to use a homopolymer having p-phenylene sulfide group as a repeating unit of p-phenylene as an arylene group. In addition, as a copolymer, in the arylene sulfide group composed of the aforementioned arylene group, a combination of two or more different kinds of groups can be used, and among them, it is particularly preferable to use a group containing p-phenylene sulfide group and Combinations of m-phenylene sulfide groups. Among them, a copolymer containing 70 mol% or more, preferably 80 mol% or more, of p-phenylene sulfide groups is suitably used in view of physical properties such as heat resistance, moldability, and mechanical properties.

Among these PAS resins, a high-molecular-weight polymer having a substantially linear structure obtained through polycondensation of a monomer mainly composed of a bifunctional halogenated aromatic compound can be preferably used. However, in addition to the PAS resin with a linear structure, it is also possible to use a monomer such as three or more polyhalogenated aromatic compounds in a small amount to form a branched structure or a cross-linked structure when it is condensed. Polymers can also be polymerized by heating linear polymers with low molecular weight at high temperature in the presence of oxygen or oxidizing agents, through oxidative crosslinking or thermal crosslinking, to increase melt viscosity and improve molding processability. thing.

As the PAS resin of component (A), it is also suitable to use the above-mentioned linear PAS resin (310°C, viscosity at 1200sec ^-1 when the viscosity is 10-300Pa·s) as the main body, and another part (1-30 % by weight, preferably 2 to 25% by weight) a mixed system of branched or crosslinked PAS resins with high viscosity (300 to 3000 Pa·s, preferably 500 to 2000 Pa·s).

The PAS resin used in the present invention is preferably a purified PAS resin that is subjected to acid washing, hot water washing, or organic solvent washing (or a combination of these washing methods) after polymerization to remove by-product impurities and the like.

Next, the graft copolymer (B) used in the present invention is a graft copolymer mainly composed of an olefin-based copolymer composed of an α-olefin and a glycidyl ester of an α,β-unsaturated acid, but as a constituent Examples of the α-olefin that is one of the components of the copolymerization portion include ethylene, propylene, and butene, among which ethylene is preferred.

The glycidyl ester of α,β-unsaturated acid as another component is a compound represented by the general formula (2),

(wherein, R ₁ represents a hydrogen atom or a lower alkyl group)

Glycidyl acrylate, glycidyl methacrylate, glycidyl ethacrylate, etc. are mentioned, Glycidyl methacrylate is preferable. An olefin-based copolymer composed of an α-olefin (such as ethylene) and a glycidyl ester of an α,β-unsaturated acid can be obtained by copolymerizing it by a generally well-known radical polymerization reaction. A suitable ratio of α-olefin and glycidyl ester of α,β-unsaturated acid is generally 70 to 99% by weight of α-olefin and 1 to 30% by weight of glycidyl ester of α,β-unsaturated acid.

Component (B) of the present invention is composed of repeating units represented by the above-mentioned general formula (1) by chemical bonding on the above-mentioned olefin-based copolymer in order to further improve impact resistance, heat resistance and reduce the amount of molding deposits. One, two or more polymers or copolymers, forming branched or cross-linked graft copolymers.

Make it undergo graft polymerization to become a branched or crosslinked polymer or copolymer segment, such as polymethyl acrylate, polyethyl acrylate, polymethyl methacrylate, polyphenyl acrylate, polymethyl acrylate Butyl acrylate, poly(2-ethylhexyl acrylate), polystyrene, polyacrylonitrile, polyacrylonitrile-styrene copolymer, polymethyl methacrylate and polybutyl acrylate copolymer, polybutyl acrylate and Copolymers of polystyrene, etc. It is preferred that X in the above general formula (1) is one, two or more groups selected from -COOCH ₃ , -COOC ₄ H ₉ , in order to improve heat resistance and reduce the amount of molding deposits, especially preferably formazan Copolymer of methyl acrylate and butyl acrylate.

The branching or crosslinking reactions of these polymers or copolymers can also be easily modulated by free radical reactions. For example, in the presence of an olefinic copolymer containing a glycidyl group, at least one vinyl monomer constituting a branched or crosslinked polymer or copolymer is combined with a specific free radical (co)polymerized organic peroxide (Vinyl compounds with peroxide groups, etc.) reaction, the two polymers are chemically bonded to prepare a graft copolymer. For branched or crosslinked chains, an appropriate amount of branched or crosslinked chains is 10 to 100 parts by weight relative to 100 parts by weight of the olefin-based copolymer composed of α-olefin and α,β-unsaturated acid glycidyl ester.

The compounding amount of the graft polymer (B) may be 0.5 to 25 parts by weight, preferably 0.5 to 15 parts by weight, more preferably 2 to 10 parts by weight, based on 100 parts by weight of the polyarylene sulfide resin (A). share. If the component (B) is too small, the effect of improving the high and low temperature impact properties cannot be obtained; if it is too large, the thermal deformation temperature will be lowered, mechanical properties such as rigidity will be affected, and the amount of molding deposit will also increase, so it is not ideal. .

The silicone oil of component (C) used in the present invention includes unmodified silicone oil or modified silicone oil with functional groups introduced therein. Representative examples of unmodified silicone oils are polydimethylsiloxane and polymethylphenylsiloxane, the latter including polydimethyldiphenylsiloxane copolymer, polydimethylphenyl Methylsiloxane copolymer, polymethylphenyldiphenylsiloxane copolymer. On the other hand, a modified silicone oil is a silicone oil in which a part of the above-mentioned unmodified silicone oil is modified with a functional group. Preferred examples of the functional group include a hydroxyl group, an amino group, a carboxyl group, a methanol group, an epoxy group, and a methacryloxy group. group), mercapto group, etc., the introduction of functional groups can be introduced at any position of the side chain, one side end, both sides ends, and side chains and both sides ends. Specific examples of these modified silicone oils include terminal silanol group polydimethylsiloxane, terminal silanol group polydimethyldiphenylsiloxane, terminal hydroxypropyl polydimethylsiloxane, poly Dimethyl hydroxyalkylene oxide methyl siloxane, terminal aminopropyl polydimethylsiloxane, aminoalkyl-containing T-structure polydimethylsiloxane, terminal carboxypropyl polydimethylsiloxane base siloxane, T-type polydimethylsiloxane containing carboxypropyl group, terminal glycidoxypropyl polydimethylsiloxane, T-type polydimethylsiloxane containing glycidoxypropyl group Dimethicone, Polyglycidoxypropylmethylsiloxane, Terminated Methyl Dimethicone, Terminated Acetoxy Dimethicone, Terminated Dimethicone Dimethicone Dimethicone, terminal methacryloxypropyl polydimethylsiloxane, T-type polydimethylsiloxane containing methacryloxypropyl group, T-type polydimethylsiloxane containing mercaptopropyl group Structure polydimethylsiloxane, polymercaptopropylmethylsiloxane, etc.

The viscosity of the silicone oil (C) used in the present invention is not particularly limited as long as it is in the range of 10 to 500,000 cSt (centistokes) at 25° C., but from the aspects of handling and dispersibility during mixing, it is preferably The viscosity is 100~100000cSt. In addition, from the standpoint of quality such as handleability and dispersibility at the time of mixing, it is preferable to use one in which silicone oil is supported on inorganic fine powder.

Component (C) silicone oil is used in an amount of 0.5 to 15 parts by weight, preferably 0.5 to 10 parts by weight, more preferably 1 to 3 parts by weight, based on 100 parts by weight of polyarylene sulfide resin (A). If the compounding amount is less than 0.5 parts by weight, the effect of improving the high and low temperature impact properties cannot be obtained; if the compounding amount exceeds 15 parts by weight, the silicone oil component will ooze out to the surface of the molded product, so it is not preferable.

The aromatic polycarboxylic acid ester (E) which can further improve the high-low temperature impact property by using together with a silicone oil (C) is a compound represented by the following general formula.

(In the formula, Y represents -COOR ₂ , R ₂ is an alkyl group, and n is an integer of 2 to 4. In addition, R ₂ of each Y may be the same or different.)

Especially when n is 3 or more, heat resistance is high, so n is 3 or more is particularly preferable. For example, trimellitic acid esters and pyromellitic acid esters are mentioned as examples of preferable compounds. Aromatic polycarboxylic acid esters may be used alone or in combination of two or more.

In the present invention, the compounding amount of the aromatic polycarboxylic acid ester (E) is 0.5 to 5 parts by weight, preferably 0.5 to 4 parts by weight, based on 100 parts by weight of the polyarylene sulfide resin (A). If the compounding amount is less than 0.5 parts by weight, the effect of improving the high and low temperature impact properties will not be obtained; if the compounding amount exceeds 5 parts by weight, physical properties such as rigidity will be impaired, and it will bleed to the surface of the molded product and increase the amount of molding deposit. and other undesirable phenomena, so it is not ideal.

In the present invention, it is necessary to use a specific graft copolymer (B) and a silicone oil (C) in combination in order to obtain an insert product having excellent high and low temperature impact properties.

Even if only the specific graft copolymer (B) is used, insert molded products with excellent high and low temperature impact properties can be obtained to some extent, but in order to achieve a good effect, its usage must be greatly increased. There is bound to be a problem of a marked increase in the amount of molded deposits caused by thermal aging. Furthermore, in a system that does not use the specific graft copolymer (B), even if the component (C) is blended, the effect of improving the high and low temperature characteristics is small. However, by using the specific graft copolymer (B) and the silicone oil (C) together at a specific ratio as in the present invention, an insert molded product having significantly improved high and low temperature impact properties and molding deposit can be obtained.

In addition, when the silicone oil (C) and the aromatic polycarboxylic acid ester (E) are used together, the high and low temperature impact properties can be further improved.

In order to improve performances such as mechanical strength, heat resistance, dimensional stability (resistance to deformation and warping), electrical properties, etc., in the resin composition of the present invention, an inorganic filler (D) can be blended, and fibrous, Powder, flake filler.

Examples of fibrous fillers include glass fiber, asbestos fiber, carbon fiber, silica fiber, silica-alumina fiber, zirconia fiber, boron nitride fiber, boron fiber, potassium titanate fiber, stainless steel, aluminum, Inorganic fibrous substances such as metal fibrous substances such as titanium, copper, and brass. A particularly representative fibrous filler is glass fiber or carbon fiber. High-melting organic fibrous substances such as polyamides, fluororesins, and acrylic resins can also be used.

On the other hand, examples of powdery fillers include carbon black, silicon oxide, quartz powder, glass beads, glass powder, calcium silicate, aluminum silicate, kaolin, talc, clay, diatomaceous earth, wollastonite, etc. Silicates, such as iron oxide, titanium oxide, zinc oxide, metal oxides of aluminum oxide, metal carbonates such as calcium carbonate, magnesium carbonate, metal sulfates such as calcium sulfate, barium sulfate, and silicon carbide, Silicon nitride, boron nitride and various metal powders.

Examples of the flaky filler include mica, glass flakes, and various metal foils. These inorganic fillers may be used alone or in combination of two or more.

Among the above fillers, glass fiber is an effective filler for improving high and low temperature impact properties. In particular, glass fibers with a fiber diameter of 10 μm or less can be used to greatly improve high and low temperature impact properties.

When using these fillers, it is best to use a sizing agent or a surface treatment agent if necessary. Specific examples of these substances are functional compounds such as epoxy-based compounds, isocyanate-based compounds, silane-based compounds, and titanate-based compounds. These compounds can be used for surface treatment or cluster treatment in advance, or can be added at the same time when preparing the material.

The amount of the inorganic filler to be used is 20 to 250 parts by weight relative to 100 parts by weight of the PAS resin (A). If the amount is less than 20 parts by weight, the mechanical strength will be poor; if the amount is too large, the molding operation will be difficult. , There will also be problems with the mechanical strength of molded products.

In the resin composition of the insert-molded article used in the present invention, a silane compound may be blended for the purpose of improving flashing, etc. within the range that does not impair the effects of the present invention. Silane compounds include various types of silanes such as vinylsilane, methacryloxysilane, epoxysilane, aminosilane, and mercaptosilane. Specific examples include vinyltrichlorosilane, γ-methacryloxy Propyltrimethoxysilane, γ-glycidoxypropyltrimethoxysilane, γ-aminopropyltriethoxysilane, γ-mercaptotrimethoxysilane, etc., but not limited to these specific examples.

In addition, in the resin composition of the insert-molded article used in the present invention, other auxiliary thermoplastic resin components may be used in small amounts in addition to the above-mentioned components as needed. As other thermoplastic resins used here, any resins that are stable at high temperatures can be used. For example, aromatic polyesters composed of aromatic dicarboxylic acids such as polyethylene terephthalate and polybutylene terephthalate and diols or hydroxycarboxylic acids, polyamides, polycarbonates, ABS, Polyphenylene ether, polyalkylacrylate, polysulfone, polyethersulfone, polyetherimide, polyetherketone, fluororesin, etc. Also, these thermoplastic resins may be used in combination of two or more.

In order to make the resin composition of the insert molding used in the present invention satisfy the required properties, known substances generally added to thermoplastic resins and thermosetting resins, that is, flame retardants, dyes, etc., can be formulated according to the required properties. , pigments and other colorants, lubricants, crystallization accelerators, crystallization nucleating agents, various antioxidants, heat stabilizers, weather resistance stabilizers, etc.

The preparation of the resin composition for the insert molding used in the present invention can be carried out by means of equipment and methods generally used for preparation of synthetic resin compositions. Generally, the necessary components can be mixed, melted and kneaded with a single-screw or twin-screw extruder, and extruded to form pellets for molding. In order to prevent heat aging of the graft copolymer (B), the resin temperature at the time of this melt-kneading is preferably 360° C. or lower. Moreover, it is also an ideal method to melt-extrude the resin component and add a fibrous inorganic filler during the melt-extrusion process.

The insert molded product is a composite molded product formed by attaching a metal or the like to a molding die in advance, and filling the outer side with the above-mentioned blended resin composition. As a molding method for filling a mold with resin, there are methods such as injection and extrusion compression molding, but injection molding is generally used. The insert material embedded in the resin is used to give full play to its characteristics and make up for the shortcomings of the resin, so it is necessary to use a material that does not change its shape or melt when it comes into contact with the resin during molding. Therefore, inserts that are preformed into rods, pins, screws, etc. with metals such as aluminum, magnesium, copper, iron, brass and their alloys and inorganic solid materials such as glass and ceramics are mainly used.

The effect of the invention

As mentioned above, the insert molded product of the present invention has excellent high and low temperature impact properties, and is particularly suitable for use in the automotive industry, such as various sensor components (vehicle speed sensors, etc.), ignition system and power distribution components, and the like.

Example

The situation of the present invention will be further described in detail through examples below, but the present invention is not limited by these examples.

The measuring methods for evaluating the physical properties shown below are as follows.

(1) High and low temperature impact characteristics

Resin temperature: 320°C; Mold temperature: 150°C; Injection time: 40 seconds; Cooling time: 60 seconds, insert injection molding of resin particles to manufacture insert molded products, formed on metal pins (14mm×14mm×24mm ) Insert molded products where the thinnest wall thickness of the upper resin part is 1 mm.

The high and low temperature impact test is carried out on the obtained insert products with a thermal shock tester, heating at 180°C for 2 hours, then cooling down to -40°C, cooling for 2 hours, and then heating up to 180°C is one cycle. The number of cycles until a crack occurs in the molded product is measured, and the high and low temperature impact resistance is evaluated.

(2) Evaluate the molding deposition amount during molding

Specific molded products were molded with an injection molding machine under the following conditions. After a predetermined number of injection moldings, the deposits on the surface of the mold and the parts around the mold exhaust were evaluated by visual observation according to the following three levels.

○: No adhesion, or significantly less adhesion

△: There is adhesion, but the amount of adhesion is small

×: Much adhesion

(molding conditions)

Injection molding machine: Toshiba IS30FRA-1A

Cylinder temperature: 340°C

Injection time: 2 seconds

Cooldown: 5 seconds

Mold temperature: 60°C

Molding times: 500 times

Examples 1-15

As shown in Table 1, the components (A), (B), (C), and (E) were mixed for 5 minutes with a Henschel mixer, and then the mixture was put into a single-stage mixer with a cylinder temperature of 320°C. In the screw extruder, component (D) was additionally added through the side feeding part of the extruder, and melted and kneaded at a resin temperature of 350°C in the single-screw extruder to prepare pellets of the resin composition and evaluate The above physical properties. Show the evaluation results in Table 1.

Comparative example 1-6

As shown in Table 2, when one or both of components (B), (C), and (D) are not added, when the compounding amount of component (B) is too large, and when using a copolymerization agent other than the conditions of the present invention, When the resin mixture was used as the component (B), the resin composition pellets were prepared according to the same operation as in the above-mentioned examples, and the above-mentioned physical properties were evaluated. Show the results in Table 2.

Specific substances of the respective components used in Examples and Comparative Examples are as follows.

(A) Polyphenylene sulfide (PPS) resin

Manufactured by Kureha Chemical Industry Co., Ltd., Photoron KPS (viscosity at 310°C, shear rate: 1200sec ^-1 : 30Pa·s)

(B) graft copolymer

B-1: Copolymer of methyl methacrylate/butyl acrylate copolymer grafted on ethylene/glycidyl methacrylate copolymer

B-2: Copolymer of styrene/acrylonitrile copolymer grafted on ethylene/glycidyl methacrylate copolymer

B'-1: Ethylene/Glycidyl Methacrylate Copolymer

(C) Silicone oil

C-1: Polydimethylsiloxane oil Viscosity 5000cSt (manufactured by Toray/Dao Corporation (Toray/ダゥコ一ポレ一ション), SH200 oil)

C-2: Polydimethylsiloxane oil Viscosity 500cSt (manufactured by Toray/Dao, SH200 oil)

C-3: Polydimethylsiloxane oil Viscosity 60000cSt (manufactured by Toray/Dao, SH200 oil)

C-4: OH modified polydimethylsiloxane oil Viscosity 4000cSt (manufactured by Toray/Dao Company, BY16-817)

C-5: Epoxy modified polydimethylsiloxane oil Viscosity 1500cSt (manufactured by Shin-Etsu Silicone, KF-101)

C-6: Inorganic powder with a particle size of 10 to 300 μm supports silicone oil with a viscosity of 60,000 cSt (manufactured by Toray/Dao Co., Ltd., Trevor F202, silicone oil component: 60% by weight)

(D) Inorganic filler

D-1: Short glass fibers of φ13 μm (manufactured by Nippon Electric Glass Co., Ltd., ECS03-717)

D-2: Glass beads (manufactured by Toshiba Barudini, EGB053Z-A)

D-3: Calcium carbonate (manufactured by Toyo Fine Chemical Co., Ltd., Hoyton P-30)

D-4: Short glass fiber with a diameter of 10 μm (manufactured by Asahi Fiberglass, CS03JAFT636)

(E) Aromatic polycarboxylic acid ester

E-1: pyromellitic acid ester (manufactured by Asahi Denka, Adeka Saiza UL-100)

Table 1 Example 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Composition parts by weight (A)PPS 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 (B) graft copolymer B-14 B-14 B-14 B-14 B-14 B-14 B-14 B-14 B-14 B-14 B-14 B-14 B-18 B-14 B-24 (C) Silicone oil C-11 C-11 C-11 C-12 C-11 C-11 C-12 C-22 C-32 C-42 C-52 C-64 C-12 C-12 C-11 (D) Inorganic filler D-1100 D-170D-230 D-170D-330 D-1100 D-4100 D-470D-330 D-4100 D-1100 D-1100 D-1100 D-1100 D-4100 D-170D-330 D-1100 D-1100 (E) Aromatic polycarboxylic acid ester E-11 assessment High and low temperature impact (cycle) 125 113 115 135 180 160 185 128 120 117 119 150 250 205 122 Forming deposit ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ △

Table 2 comparative example 1 2 3 4 5 6 Composition︵Parts by weight︶ (A)PPS 100 100 100 100 100 100 (B) graft copolymer B-14 B-18 B-130 B'-14 (C) Silicone oil C-12 C-12 C-11 (D) Inorganic filler D-1100 D-1100 D-170D-330 D-1100 D-1100 D-1100 (E) Aromatic polycarboxylic acid ester assessment High and low temperature impact (cycle) 15 42 155 350 25 120 Forming deposit ○ ○ x x ○ x

Claims (6)

1. insert-molded article is characterized in that resin combination and metal or inoganic solids are carried out insert moulding to be formed, and described resin combination is, with respect to

(A) polyarylene sulfide resin 100 weight parts are combined with

(B) by alpha-olefin and α, on the olefin copolymer that the glycidyl ester of beta-unsaturated acid is formed, by a kind of or two kind or two or more polymkeric substance or the multipolymer of chemical bonding by the formation of repeating unit shown in the following general formula (1), and graft copolymer 0.5～25 weight part of formation side chain or crosslinking structure

(in the formula, R represents hydrogen or low alkyl group, and X represents from-COOCH ₃,-COOC ₂H ₅,-COOC ₄H ₉,-COOCH ₂CH (C ₂H ₅) C ₄H ₉,-C ₆H ₅A kind of, two or more the group selected among the ,-CN)

(C) silicone oil 0.5～15 weight part

(D) inorganic filler 20～250 weight parts

Resin combination.

2. according to the insert-molded article described in the claim 1, wherein, graft copolymer (B) be the multipolymer of forming by methyl methacrylate and butyl acrylate as side chain, carry out chemical bonding and the graft copolymer that forms.

3. according to the insert-molded article described in claim 1 or 2, wherein,, also further cooperate aromatic series multi-carboxylate (E) 0.5～5 weight part with respect to polyarylene sulfide resin 100 weight parts.

4. according to the insert-molded article described in the claim 3, wherein, the aromatic series multi-carboxylate be from trimellitate and pyromellitic ester, select a kind of, two or more.

5. according to the insert-molded article described in any one of the claim 1～4, wherein, inorganic filler (D) be from fibrous, powder shape, sheet weighting agent, select a kind of, two or more.

6. according to the insert-molded article described in the claim 5, wherein, inorganic filler is that the fiber footpath is at 10 μ m or following glass fibre.