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CN-116034026-B - Resin composition, molded article, composite body, and use thereof

CN116034026BCN 116034026 BCN116034026 BCN 116034026BCN-116034026-B

Abstract

The present invention provides a molded article having a high flexural modulus and excellent heat resistance and low-temperature impact resistance, and a resin composition which can obtain the molded article. A resin composition comprising a polyaryletherketone, a fluorine-containing elastomer and an inorganic filler, wherein the ratio of the fluorine-containing elastomer to the total of the volume of the polyaryletherketone and the volume of the fluorine-containing elastomer is 1 to 45% by volume, the ratio of the inorganic filler is 1 to 50% by mass, and the load deformation temperature under a load of 1.82MPa based on ASTM D648 is higher than that of the following comparative composition, and a molded article of the resin composition. The comparative composition, namely, a resin composition comprising a polyaryletherketone and a fluorine-containing elastomer and containing no inorganic filler, was the same as the resin composition except that the presence or absence of the inorganic filler was different, and the type of the polyaryletherketone, the type of the fluorine-containing elastomer and the volume ratio of the fluorine-containing elastomer to the total of the volume of the polyaryletherketone and the volume of the fluorine-containing elastomer were the same.

Inventors

  • Ozawa N.
  • SASAKI HIROSHI
  • ABE MASATOSHI

Assignees

  • ＡＧＣ株式会社

Dates

Publication Date
20260512
Application Date
20210811
Priority Date
20200814

Claims (11)

  1. 1. A resin composition comprising a polyaryletherketone and a fluoroelastomer and an inorganic filler, Wherein the fluorine-containing elastomer is a copolymer having a tetrafluoroethylene-based unit and a propylene-based unit, a copolymer having a hexafluoropropylene-based unit and a vinylidene fluoride-based unit, or a copolymer having a tetrafluoroethylene-based unit and a unit based on a compound represented by the following formula (1), CF 2 =CF(OR F ) (1) Wherein R F is a linear or branched perfluoroalkyl group having 1 to 8 carbon atoms, As at least a part of the inorganic filler, carbon fiber or glass fiber, The proportion of the volume of the fluorine-containing elastomer relative to the total of the volume of the polyaryletherketone and the volume of the fluorine-containing elastomer is 1-45 volume percent, The mass ratio of the inorganic filler relative to the resin composition is 20-30 mass%, The load deflection temperature, as determined under conditions of a load of 1.82MPa based on ASTM D648, is higher than the load deflection temperature of the comparative composition described below, And a comparative composition comprising the polyaryletherketone and the fluorine-containing elastomer, and not containing the inorganic filler, wherein the type of the polyaryletherketone, the type of the fluorine-containing elastomer, and the volume ratio of the fluorine-containing elastomer to the total of the volume of the polyaryletherketone and the volume of the fluorine-containing elastomer are the same as the resin composition, except that the presence or absence of the inorganic filler is different.
  2. 2. The resin composition of claim 1, wherein the polyaryletherketone is selected from polyetherketone, polyetheretherketone, or polyetherketoneketone.
  3. 3. The resin composition according to claim 1 or 2, wherein the brightness L in a tone measurement based on JIS-Z8781-4 Above 60.
  4. 4. The resin composition according to claim 1 or 2, wherein the inorganic filler is a fibrous inorganic filler, a flat inorganic filler or a particulate inorganic filler.
  5. 5. The resin composition according to claim 1 or 2, wherein the inorganic filler comprises 1 or more selected from the group consisting of carbon fibers, graphite, carbon nanotubes, glass fibers and silica.
  6. 6. The resin composition according to claim 1 or 2, further comprising a polymer filler.
  7. 7. The resin composition according to claim 6, wherein the polymer filler is polytetrafluoroethylene.
  8. 8. The resin composition according to claim 1 or 2, further comprising 1 or more selected from the group consisting of plasticizers, ultraviolet absorbers and light stabilizers.
  9. 9. A molded article of the resin composition according to any one of claims 1 to 8.
  10. 10. A composite body obtained by compositing or laminating the molded body according to claim 9 and other materials.
  11. 11. A portable electronic device, a sliding member, a three-dimensional circuit component, an electric wire, or a component for energy resource drilling, comprising the molded article according to claim 9 or the composite according to claim 10.

Description

Resin composition, molded article, composite body, and use thereof Technical Field The present invention relates to a resin composition, a molded article, a composite and uses thereof. Background Polyaryletherketone (polyetheretherketone, polyetherketone, polyetherketoneketone, etc.) is excellent in heat resistance and high in bending modulus. Therefore, polyaryletherketones are widely used in various fields as materials for molded articles. However, the molded product of polyaryletherketone is insufficient in impact resistance at ordinary temperature or low temperature. As a resin composition capable of giving a molded article having improved impact resistance of polyaryletherketone, the following resin composition has been proposed. A resin composition comprising a polyaryletherketone and a fluorine-containing elastomer, wherein the fluorine-containing elastomer is dispersed in the polyaryletherketone, the fluorine-containing elastomer has a number average particle diameter of 1 to 300 [ mu ] m, the volume ratio of the polyaryletherketone to the fluorine-containing elastomer is 97:3 to 55:45, and the resin composition has a flexural elastic modulus of 1000 to 3700MPa (patent document 1). A resin composition comprising a polyaryletherketone, a fluorine-containing elastomer, and a ratio of a melt flow rate of the polyaryletherketone to the fluorine-containing elastomer under specific conditions of 0.2 to 5.0, wherein the ratio of the volume of the polyaryletherketone to the total of the volume of the polyaryletherketone and the volume of the fluorine-containing elastomer is 60 to 97% by volume (patent document 2). Prior art literature Patent literature Patent document 1 International publication No. 2017/188280 Patent document 2 International publication No. 2019/198771 Disclosure of Invention Technical problem to be solved by the invention The resin compositions described in patent documents 1 and 2 contain a fluorine-containing elastomer, and therefore may deteriorate the high flexural modulus of polyaryletherketone. In addition, the heat resistance is insufficient when formed into a molded article, and there is room for improvement in impact resistance at low temperatures. The present invention provides a molded article having high flexural elasticity and excellent heat resistance and low-temperature impact resistance, and a resin composition capable of obtaining the molded article. Technical proposal adopted for solving the technical problems The present inventors have studied intensively and found that the above problems can be solved by using a specific composition comprising a polyaryletherketone, a fluorine-containing elastomer and an inorganic filler. Here, it is predicted based on the common knowledge of those skilled in the art that if 3 components of polyaryletherketone, a fluorine-containing elastomer and an inorganic filler are used, the heat resistance and flexural modulus of the molded article should be lower than those of a composition comprising 2 components of polyaryletherketone and an inorganic filler. Surprisingly, however, the present inventors have found that the heat resistance, flexural modulus of elasticity, and low-temperature impact resistance of a molded article of a resin composition comprising a polyaryletherketone, a fluorine-containing elastomer, and an inorganic filler are improved beyond the range generally expected by those skilled in the art, compared with a composition comprising 2 components of a polyaryletherketone and an inorganic filler, and have completed the present invention. The present invention has the following configurations. [1] A resin composition comprising a polyaryletherketone, a fluorine-containing elastomer and an inorganic filler, wherein the ratio of the volume of the fluorine-containing elastomer to the total of the volume of the polyaryletherketone and the volume of the fluorine-containing elastomer is 1 to 45% by volume, the ratio of the mass of the inorganic filler to the resin composition is 1 to 50% by mass, and the load deformation temperature (Japanese: weight-up temperature) measured under the condition of a load of 1.82MPa based on ASTM D648 is higher than the load deformation temperature of a comparative composition, And a comparative composition comprising the polyaryletherketone and the fluorine-containing elastomer, and not containing the inorganic filler, wherein the type of the polyaryletherketone, the type of the fluorine-containing elastomer, and the volume ratio of the fluorine-containing elastomer to the total of the volume of the polyaryletherketone and the volume of the fluorine-containing elastomer are the same as the resin composition, except that the presence or absence of the inorganic filler is different. [2] The resin composition according to [1], wherein the fluorine-containing elastomer is a copolymer having a tetrafluoroethylene-based unit and a propylene-based unit, a copolymer having a hexafluoropropylene-based unit