JPS6330557A - Heat-resistant resin composition - Google Patents

Abstract

PURPOSE:To provide the title compsn. which has excellent mechanical and flow characteristics and is suitable for use in the production of thin-wall molded products, by adding polyphenyl ether oil to a filled arom. polyether ketone resin, polyether imide resin or polyarylene ether sulfone resin. CONSTITUTION:0.05-3.50 wt% (based on the amount of the compsn.) polyphenyl ether oil (A) is added to an arom. polyether ketone resin (B), a polyether imide resin (C) of formula I or a polyarylene ether sulfone resin (D) of formula II, III or IV, each of said resins containing a filler such as an arom. polyester resin, carbon fiber, diatomaceous earth, MoS2, carbon black, etc.

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a heat-resistant resin composition.

[Conventional technology]

Aromatic polyether paper resin, polyetherimide resin, polyarylene ether sulfone resin, etc. are all resins with excellent heat resistance, chemical resistance, electrical properties, mechanical properties, etc., and are used in the electrical and electronic industries, It is widely used in the automobile-related industry, general machinery-related industry, and many other fields. However, these resins cannot be said to fully meet the strong demands of consumers regarding mechanical properties, sliding properties, and the like. For this reason, attempts have been made to modify these resins by adding various fillers, but in recent years, as more advanced mechanical properties and sliding properties have been required in various fields, fillers The number of additional bonds has also been forced to increase accordingly.

However, if the amount of filler is increased, the flowability of the resin will become extremely poor, making molding difficult and, in particular, almost impossible to mold thin-walled products.

[Problem that the invention seeks to solve]

As mentioned above, in conventional technology, aromatic polyetherketone resins, polyetherimide resins, and polyarylene ether sulfone resins that are highly filled with fillers have extremely poor flowability and cannot be molded. was there.

[Failure to solve the problem]

In order to solve the above problems, the present invention employs a method of adding polyphenyl ether oil to a filled aromatic polyetherketone resin, polyetherimide resin or polyarylene ether sulfone resin. The details will be described below.

First, the aromatic polyetherketone resin in the present invention has a repeating unit represented by the following alone, or this repeating unit and other repeating units represented by Polymers coexisting to the extent that they do not lose their properties, such as polyether ether ketone, which is commercially available under the registered trade name Udel-PEEK manufactured by ICI Ltd. in the UK, have heat resistance, flame resistance, Resins with excellent properties such as mechanical strength (hereinafter, such resins are referred to as P
(abbreviated as EEK), and its manufacturing method is disclosed in Japanese Patent Application Laid-Open No. 1983
This is disclosed in, for example, Japanese Patent No. -90296.

Next, the polyetherimide resin of the present invention is a thermoplastic polymer (hereinafter referred to as PEI) composed of a combination of ether bonds and imide bonds as essential bonding units, and is, for example, represented by H3. Examples include resins commercially available under the registered trademark Ultem manufactured by GE Corporation in the United States. This manufacturing method is disclosed in Japanese Patent Publication No. 57-9372.

In addition, the polyarylene ether sulfone (aromatic polysulfone) of this invention has an arylene bond (aromatic bond),
It is a linear polymer composed of a combination of ether bonds and sulfone bonds as essential bonding units, and representative examples include those having the following structural formula. (Hereinafter, such resin will be referred to as P
It is abbreviated as ES. ) Namely, [Toy name: VI CT EX-PES], [Product name: Udel).

[Product name: ASMU "e1"], etc. These PES are, for example,
It is easily produced by the method described in Japanese Patent Publication No. 067, Japanese Patent Publication No. 42-7799, Japanese Patent Publication No. 47-617, etc., and is made of one or a mixture of two or more of the above polymers. There may be.

Further, the filler in this invention may be, for example, the above-mentioned (7).
In addition to organic heat-resistant polymer materials such as PEEK, PEI, and PES resins, polyamide-imide resins, phenolic resins, polyarylene sulfide resins, aromatic polyester resins, polyimide resins, silicone resins, and fluororesins, glass, carbon, graphite,
Inorganic single fibers such as phorastonite, potassium titanate, silicon carbide, sapphire, metals, tungsten core wire or carbon fibers, inorganic heat-resistant composite fibers such as poron or silicon carbide fibers, and organic heat-resistant fibers such as aromatic amide fibers. Inorganic powders for improving thermal conductivity such as fibers, graphite or metals or oxides such as zinc, aluminum, and magnesium, inorganic powders such as glass beads, silica balloons, diatomaceous earth, asbestos, magnesium carbonate, calcium carbonate, molybdenum disulfide, graphite,
Inorganic powders for improving lubricity such as carbon, mica, talc, molybdenum trioxide, iron oxide, cadmium sulfide,
A large number of examples include inorganic pigments such as selenizing power Domicum and carbon black.

Furthermore, the polyphenyl ether oil used in this invention has a basic structure in which benzene nuclei are linked by at least one selected from ether bonds and thioether bonds, for example, 5j solid benzene nuclei are linked by four ether bonds. It is a polyphenyl ether oil containing structural isomers, and commercially available products include polyphenylene ether O5-124 manufactured by Monsanto Company in the United States.

The amount of polyphenyl ether oil added in this invention is 0.05 to 3.50% by weight, preferably 0.05% by weight, based on the total amount of the filler-containing heat-resistant resin composition after addition of this oil.
It is 2 to 2.8% by weight. This is because if the amount of polyphenyl ether oil added is small (less than 0.05% by weight), no improvement in flowability can be expected, and if the amount exceeds 3.5% by weight, the mechanical properties of the heat-resistant resin containing fillers will change. This is because it impairs its characteristics.

〔Example〕

The raw materials used in the Examples and Comparative Examples are shown below.

■ PEEK (manufactured by I.C.I., UK: Udel)
-PEEK 150P), ■PEI (manufactured by GE Corporation in the United States: Kurtem 1000
), ■ PE5 (UK ICI: PE
S-300P), ■ Tetrafluoroethylene resin (manufactured by Kitamura Co., Ltd.: KTL60
0), ■ Aromatic polyester resin (manufactured by Sumitomo Chemical Co., Ltd.: ECONOL EIOI-5), ■ Carbon fiber (manufactured by Kureha Chemical Co., Ltd.: Kureha M2O7S), ■
Bronze (manufactured by Fukuyama Metal Foil and Powder Co., Ltd.: AT-350 mesh), ■ Polyphenyl ether oil (Monken [1:
Polyphenylene ether oil O5-124), ■ Fluorinated polyether oil (manufactured by Montefluos, Italy:
FOMBLIN Z-25), [Phase] Zinc stearate (reagent manufactured by Wako Pure Chemical Industries, Ltd.), (1) Silicone oil (manufactured by Toshiba Silicone Company: TSF433) Examples 1 to 4:.

The raw materials are mixed in the proportions (wt%) shown in Table 1,
After mixing well, use a twin-screw melt extruder (manufactured by Ikegai Iron Works: PCM).
-3Q extruder) and granulated and injection molded under the melt mixing conditions and injection molding conditions listed in Table 2 to measure flowability, bending strength, -impact strength, and melt viscosity. A test piece was molded. Here, each test method is as follows.

b) Flowability: Under the injection molding conditions shown in Table 2, the length reached when molding products with a width of 5 mm, thickness of 0.2 mm, Q, 4 mm, and Q, 5 mm. Expressed by .

1) Bending strength: Based on ASTM-D790, 3) Izod impact strength: Based on ASTM-D256, 2) Melt viscosity. The measurement was performed under conditions of a temperature 5° C. higher than the mixing conditions and a rotor rotation speed of 5 Q rpm.

The above measurement results are also listed in Table 2, and as is clear from this table, in Examples 1 to 3, the flowability was able to be significantly improved without reducing the mechanical strength.
In Comparative Examples 1 to 6, either the flowability is poor (Comparative Examples 1 to 4 and 6) or the mechanical strength is decreased (Comparative Example 5), and the relationship between flowability and mechanical strength is I couldn't find anything that was both excellent.

〔effect〕

As mentioned above, the heat-resistant resin composition of the present invention has both excellent mechanical properties and excellent flowability that have not been previously available, and has the inherent heat resistance and chemical resistance of the base resin. Coupled with its excellent properties such as elasticity and electrical properties, it can be used in a wide range of fields including electrical and electronic industries, automobile-related industries, general machinery-related industries, and many other fields, especially where thin-walled molded products are required. It is the best in the field. Therefore, it can be said that the significance of this invention is extremely large.

Claims (1)

[Claims] A heat-resistant resin composition characterized by adding polyphenyl ether oil to a filler-containing aromatic polyether ketone resin, polyetherimide resin, or polyarylene ether sulfone resin.