Thermoplastic resin composition, method for producing same, and molded article

A thermoplastic resin, thermoplastic elastomer technology, applied in the field of thermoplastic resin composition and its manufacture, thermoplastic resin composition and molded body, to achieve the effects of reduced content, excellent rigidity and excellent impact resistance properties

Active Publication Date: 2017-04-26
TOYOTA BOSHOKU KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, the current situation is that the properties of impact resistance and rigidity are in a trade-off relationship with each other. In particular, there is an opposite tendency that the rigidity is insufficient due to the occurrence of impact resistance, and the two properties of impact resistance and rigidity have not been fully satisfied. of plant-derived plastic materials

Method used

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  • Thermoplastic resin composition, method for producing same, and molded article
  • Thermoplastic resin composition, method for producing same, and molded article
  • Thermoplastic resin composition, method for producing same, and molded article

Examples

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Embodiment

[0201] Hereinafter, the present invention will be described more specifically by way of examples.

[0202] [1-1] Production of thermoplastic resin composition (I) using PA11 as polyamide resin and production of test piece

[0203]

[0204] (1) Preparation of mixed resin

[0205] (A) PA11 (nylon 11 resin, manufactured by Arkema K.K., trade name "Rilsan BMNO", weight average molecular weight 18,000, melting point 190°C) was used as polyamide resin, and maleic anhydride-modified EPR was used as compatibilizer (C) (manufactured by Mitsui Chemicals, Inc., trade name "TAFMER MP0620", MFR (230° C.) = 0.3 g / 10 minutes), these pellets were dry-blended according to the proportion shown in Table 1, and then put into twin-screw melt kneading Extruder (manufactured by TECHNOVEL Corporation., screw diameter 15mm, L / D=59), mixed under the conditions of 210° C. of kneading temperature, 2.0 kg / hour of extrusion speed, and 200 revolutions / minute of screw speed, and then used The pelletizer ...

Embodiment 2

[0210] (C) Maleic anhydride-modified EBR (manufactured by Mitsui Chemicals, Inc., trade name "TAFMER MH7020", MFR (230° C.) = 1.5 g / 10 minutes) was used as a compatibilizer, and the formulation shown in Table 1 was used. Pellets of the thermoplastic resin composition of Example 2 were produced in the same manner as in Example 1 except that the respective pellets were dry-blended. Next, injection molding was performed in the same manner as in Example 1 to obtain a test piece for measuring physical properties of Example 2.

Embodiment 3

[0212] (C) Maleic anhydride-modified SEBS (manufactured by Asahi Kasei Chemicals Corporation., trade name "Tuftec M1913", MFR (230° C.) = 5.0 g / 10 minutes) was used as a compatibilizer, and the compounding ratio shown in Table 1 was used. Pellets of the thermoplastic resin composition of Example 3 were produced in the same manner as in Example 1 except that each pellet was dry-blended. Next, injection molding was performed in the same manner as in Example 1 to obtain a test piece for measuring physical properties of Example 3.

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Abstract

The purpose of the present invention is to provide: a thermoplastic resin composition which exhibits excellent rigidity, while having excellent impact strength characteristics; and a method for producing the thermoplastic resin composition. This thermoplastic resin composition, wherein a polyolefin resin contains a polyamide resin that is dispersed therein, is characterized in that: the thermoplastic resin composition is obtained by melting and kneading a polyolefin resin and a mixed resin that is obtained by melting and kneading a polyamide resin and a compatibilizer; and the compatibilizer is a modified elastomer that is obtained by providing an elastomer (such as an olefin-based thermoplastic elastomer or a styrene-based thermoplastic elastomer) with a reactive group that is reactive with the polyamide resin. The present invention also relates to a thermoplastic resin composition which is obtained by melting and kneading from 1% by mass to 80% by mass (inclusive) of a plant-derived polyamide resin such as polyamide 11, from 5% by mass to 75% by mass (inclusive) of a polyolefin resin and from 1% by mass to 30% by mass (inclusive) of a compatibilizer that is an olefin-based thermoplastic elastomer that is modified with an acid.

Description

technical field [0001] The present invention relates to a thermoplastic resin composition, a method for producing the same, and a molded article. More specifically, the present invention relates to a thermoplastic resin composition having excellent rigidity and excellent impact resistance, and a method for producing the same. Also, the present invention relates to a thermoplastic resin composition and a molded article using a plant-derived polyamide resin that are excellent in impact resistance and rigidity. Background technique [0002] Polymer blends (including polymer alloys) in which resins with different polarities are mixed together to modify the properties of the resins have been actively studied (see, for example, Patent Documents 1 and 2). [0003] At this time, if the compatibility between the resins is insufficient, the mechanical properties such as impact resistance characteristics will be reduced, and the modification effect by the blend polymer will not be obt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/02C08L77/00
CPCC08J3/005C08J2323/12C08J2377/06C08J2415/00C08J2423/12C08J2423/20C08J2425/08C08L23/10C08L23/12C08L77/00C08L77/02C08L77/06C08L2205/02C08L2205/025C08L2205/03C08L2205/08C08L2207/04C08L23/26C08J3/20C08L23/02C08J5/00C08J2323/06C08J2409/00C08J2477/06
Inventor 鬼头雅征有尾敏幸河田顺平毛利诚渡边修加藤诚冈本浩孝
Owner TOYOTA BOSHOKU KK
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