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Polyphenylene ether-based resin composition

A resin composition and styrene-based resin technology, applied in the field of polyphenylene ether-based resin compositions, can solve problems such as difficulties, not necessarily sufficient effects, and becoming flame retardant, and achieve excellent flame retardancy, excellent mechanical strength, Excellent lightweight effect

Active Publication Date: 2017-10-10
ASAHI KASEI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Generally, electrical conductivity and mechanical strength can be imparted by mixing carbon fibers with polyphenylene ether-based resins. However, when a small amount is mixed, it is difficult to uniformly obtain sufficient electrical conductivity in the molded product, and the mechanical strength is not sufficient.
In the case of compounding a large amount, flame retardancy tends to be significantly difficult, and the specific gravity of the material is also high, so the effect may not be sufficient

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0169] The present invention will be described below with reference to specific examples and comparative examples. The invention is not limited to these examples.

[0170] The measurement methods and raw materials for the physical properties used in Examples and Comparative Examples are as follows.

[0171] (1. specific gravity)

[0172] The specific gravity of the polyphenylene ether resin composition manufactured in the Example and the comparative example was measured using the electronic density meter SD-200L by Alfa Mirage.

[0173] As an evaluation criterion, the smaller the specific gravity, the better the lightness and the like.

[0174] (2. Volume resistivity)

[0175] The pellets of the polyphenylene ether-based resin compositions produced in Examples and Comparative Examples were dried in a hot air dryer at 90° C. for 1 hour. Using an injection molding machine (IS-80EPN, manufactured by Toshiba Machine Co., Ltd.) equipped with a dot-gate flat mold with a size of ...

Embodiment 1

[0211] By TEM58SS twin-screw extruder (manufactured by Toshiba Machinery Co., Ltd., barrel number 13, screw diameter 58mm, L / D=53; There are 2 kneading discs L, 14 kneading discs R and 2 kneading discs N The most upstream part (top feed port) of the screw mode) supplies (PPE1) 58 mass parts, (HIPS) 10 mass parts, (GPPS) 5 mass parts, and uses the liquid addition device and the liquid addition nozzle to add from the barrel 4 in the middle. 18 parts by mass of liquid feed (FR), 9 parts by mass of feed (CF1) from 8 sides of the barrel in the middle, at a barrel temperature of 300°C, a screw speed of 400rpm, an extrusion rate of 400kg / hr, and a vacuum degree of the exhaust port of 7.998 Melt-kneading was performed under the condition of kPa (60 Torr) to obtain a resin composition. The physical property measurement results of the obtained resin composition are listed in Table 1 below.

Embodiment 2

[0213] By TEM58SS twin-screw extruder (manufactured by Toshiba Machinery Co., Ltd., barrel number 13, screw diameter 58mm, L / D=53; There are 2 kneading discs L, 14 kneading discs R and 2 kneading discs N The most upstream part (top feed port) of the screw mode) supplies 50 parts by mass of (PPE1) and 25 parts by mass of (PPE2), and uses a liquid addition device and a liquid addition nozzle to add liquid feed (FR) 16 from the barrel 4 in the middle Parts by mass, feed (CF1) 9 parts by mass from the 8 sides of the barrel in the middle, under the conditions of barrel temperature 300°C, screw speed 400rpm, extrusion rate 400kg / hr, and exhaust port vacuum 7.998kPa (60Torr) Melt-kneading was performed to obtain a resin composition. The physical property measurement results of the obtained resin composition are listed in Table 1 below.

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Abstract

The present invention provides a polyphenylene ether-based resin composition excellent in light weight and excellent in electrical conductivity, flame retardancy and mechanical strength in the case of forming a thin molded body. The polyphenylene ether-based resin composition of the present invention is characterized in that it contains 50 to 85% by mass of polyphenylene ether (A), 0 to 16% by mass of styrene resin (B), and carbon fiber (C) 5 Mass% to 9% by mass, and 5 to 25% by mass of aromatic phosphoric acid ester-based flame retardant (D), and the specific gravity is 1.10 to 1.17, and the volume resistivity of the molded sheet having a length of 150 mm, a width of 150 mm and a thickness of 2 mm is 10 Omega cm to 1000 Omega cm, a molded sheet having a length of 127 mm, a width of 13 mm and a thickness of 1 mm was prepared in the order of V-1 or V-0 measured in accordance with UL94 to produce a molded sheet having a length of 80 mm, a width of 10 mm and a thickness of 4 mm The flexural strength measured at 23 degrees according to ISO 178 was 120 MPa or more.

Description

technical field [0001] The present invention relates to a polyphenylene ether resin composition. More specifically, the present invention relates to a polyphenylene ether-based resin composition that is excellent in lightness and also excellent in electrical conductivity, flame retardancy, and mechanical strength when formed into a thin molded article. Background technique [0002] Sheet metal materials have conventionally been used for internal components such as internal conductive frames, internal chassis, and banknote storage parts of financial automatic equipment such as ATMs (Auto Teller Machines) and CDs (Cash Dispensers). In recent years, however, studies have been conducted to replace sheet metal materials with resins because weight reduction due to low specific gravity can be expected. [0003] However, in such an application, when the banknotes are conveyed at high speed, the static electricity generated by the contact and friction between the banknotes and the i...

Claims

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Application Information

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IPC IPC(8): C08L71/12C08L51/04C08L25/06C08L25/12C08L53/02C08K7/06C08K5/523C08K5/42C08K5/20C08K13/04C08K7/00C08K3/04
CPCC08K2201/001C08L71/12C08L2201/02C08L2201/08C08L2205/025C08L2205/03C08L2205/035C08L51/04C08L25/06C08K7/06C08K5/523C08K7/00C08K3/04C08L53/02C08L25/12C08K5/42C08K13/04C08K5/20
Inventor 山口徹
Owner ASAHI KASEI KK
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