JP2013147646A - Thermoplastic resin composition using plant-originated polyamide resin and molded article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thermoplastic resin composition excellent in impact-resistant characteristics, also excellent in rigidity, and using a plant-originated polyamide resin, and to provide a molded article.SOLUTION: A thermoplastic resin composition is prepared by melt-kneading a polyamide resin (PA), a polyolefin resin (PO), and a compatibilizer, wherein PA is at least one plant-originated PA resin of PA11, PA610, PA614, PA1010 and PA10T; the content of PA is ≥1 mass% and ≤80 mass% of 100 mass% of the total amount of PA resin, PO resin and the compatibilizer; the content of PO resin is ≥5 mass% and ≤75 mass%; the compatibilizer is an acid-modified olefinic thermoplastic elastomer; and the content of the elastomer is ≥1 mass% and ≤30 mass%.

Description

  The present invention relates to a thermoplastic resin composition and a molded body using a plant-derived polyamide resin. More specifically, the present invention relates to a thermoplastic resin composition and a molded body using a plant-derived polyamide resin which is excellent in impact resistance and excellent in rigidity.

  Conventionally, polylactic acid (PLA), polybutylene succinate (PBS), polytrimethylene terephthalate (PTT), polyamide 11 (PA11), and the like are known as plant-derived resins used for plant-derived plastic materials. A plant-derived plastic material obtained by blending a petrochemical-derived resin such as a polyolefin resin or ABS with the plant-derived resin to form an alloy is known. For example, the following patent document 1 and the following patent document 2 are known as examples using PLA. Moreover, the following patent document 3 and the following patent document 4 are known as an example using PBS. Furthermore, as an example using PA11, the following patent document 5 is known.

JP 2009-126916 A JP 2010-265444 A JP 2010-18694 A JP 2009-209227 A JP 2008-214585 A

  However, among plant-derived resins, plant-derived plastic materials using PLA, PBS and PTT inherit the physical properties inherent to these plant-derived resins, and are particularly satisfactory in mechanical properties. There is a problem of not reaching. That is, for example, PLA has weak points with respect to impact resistance, heat resistance and hydrolyzability, PBS has weak points with respect to rigidity, heat resistance and hydrolyzability, and PTT has impact points with respect to impact resistance and hydrolyzability. There are weaknesses about. For this reason, there are still many restrictions on use, for example, it is difficult to apply to particularly high mechanical properties such as door trims and deck side trims as interior materials for automobiles. Further, if these plant-derived resins are used as the base material, modification of these resins is required, resulting in an increase in cost. Furthermore, in the thermoplastic resin composition using PA11 disclosed in Patent Document 5, the ABS resin, which is a counterpart material of PA11, is a general-purpose resin and is low in cost, but compared with an olefin resin such as polypropylene. There are problems that it is a high-cost material and has a weak point regarding solvent resistance because it is an amorphous resin.

Further, in the fields of automobile interior parts and exterior parts, particularly high mechanical properties are required, and it is indispensable to satisfy both impact resistance characteristics and rigidity (flexural modulus).
However, there is a trade-off relationship between the impact resistance characteristics and the rigidity characteristics, and in particular, there is a conflicting tendency that the rigidity is insufficient by taking advantage of the impact resistance characteristics. At present, satisfactory plant-derived plastic materials are not yet available.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a thermoplastic resin composition and a molded body using a plant-derived polyamide resin which is excellent in impact resistance and excellent in rigidity. .

In order to solve the above problem, the invention described in claim 1 is obtained by melt-kneading a polyamide resin, a polyolefin resin, and a compatibilizer,
The polyamide resin is at least one plant-derived polyamide resin of polyamide 11, polyamide 610, polyamide 614, polyamide 1010, and polyamide 10T, and the content thereof includes the polyamide resin, the polyolefin resin, and the compatibility. 1% by mass to 80% by mass with respect to the total of 100% by mass of the agent,
The content of the polyolefin resin is 5% by mass or more and 75% by mass or less with respect to 100% by mass in total of the polyamide resin, the polyolefin resin, and the compatibilizer,
The compatibilizer is an acid-modified olefinic thermoplastic elastomer, and the content thereof is 1% by mass with respect to 100% by mass in total of the polyamide resin, the polyolefin resin, and the compatibilizer. The gist is that the content is 30% by mass or less.

The invention according to claim 2 is the invention according to claim 1, wherein the content of the polyamide resin is 10% by mass or more and 40% by mass or less,
The content of the polyolefin resin is 50% by mass to 75% by mass,
The gist is that the content of the compatibilizer is 5% by mass or more and 30% by mass or less.

  A third aspect of the present invention is directed to the first or second aspect, wherein the compatibilizing agent is a maleic anhydride-modified ethylene / 1-butene copolymer or a maleic anhydride-modified ethylene / octene copolymer. The gist is that it is a polymer.

  The invention according to claim 4 is summarized in that, in claim 3, the polyamide resin is any one of polyamide 11, polyamide 610, polyamide 1010, and polyamide 10T, and the polyolefin resin is polypropylene.

  The gist of the invention described in claim 5 is that, in claim 4, the specific gravity is 0.89 or more and 1.05 or less.

  The gist of the invention described in claim 6 is that it comprises a thermoplastic resin composition using the plant-derived polyamide resin according to any one of claims 1 to 5.

According to the thermoplastic resin composition using the plant-derived polyamide resin of the present invention, it is possible to obtain a molded body using the plant-derived polyamide resin having excellent impact resistance and rigidity.
Further, the content of the polyamide resin is 10% by mass or more and 40% by mass or less, the content of the polyolefin resin is 50% by mass or more and 75% by mass or less, and the content of the compatibilizer is 5% by mass or more and 30% by mass. % Or less, the content of the polyamide resin is reduced to reduce the heat using a plant-derived polyamide resin having excellent impact resistance and rigidity while being a thermoplastic resin composition having a smaller specific gravity. It can be set as a plastic resin composition.
Further, when the compatibilizer is a maleic anhydride-modified ethylene / 1-butene copolymer or a maleic anhydride-modified ethylene / octene copolymer, particularly excellent impact resistance and rigidity are obtained. be able to.
Further, when the polyamide resin is any one of polyamide 11, polyamide 610, polyamide 1010, and polyamide 10T, and the polyolefin resin is polypropylene, the specific gravity is small while maintaining the excellent properties of each resin, and the injection A thermoplastic resin composition particularly excellent in moldability can be obtained.
Furthermore, when the specific gravity is 0.89 or more and 1.05 or less, it is possible to obtain a molded article that is lightweight and excellent in impact resistance characteristics and also excellent in rigidity.
According to the molded article of the present invention, while using a plant-derived polyamide resin, it is possible to obtain a molded article having excellent impact resistance and rigidity.

  The items shown here are for illustrative purposes and exemplary embodiments of the present invention, and are the most effective and easy-to-understand explanations of the principles and conceptual features of the present invention. It is stated for the purpose of providing what seems to be. In this respect, it is not intended to illustrate the structural details of the present invention beyond what is necessary for a fundamental understanding of the present invention. It will be clear to those skilled in the art how it is actually implemented.

The thermoplastic resin composition using the plant-derived polyamide resin of the present invention is obtained by melt-kneading a polyamide resin, a polyolefin resin, and a compatibilizer,
The polyamide resin is at least one plant-derived polyamide resin of polyamide 11, polyamide 610, polyamide 614, polyamide 1010, and polyamide 10T, and the content thereof is 1 with respect to 100% by mass in total of the above three components. Mass% to 80 mass%,
The content of the polyolefin resin is 5% by mass to 75% by mass with respect to 100% by mass in total of the above three components,
The compatibilizer is an acid-modified olefinic thermoplastic elastomer, and the content thereof is 1% by mass or more and 30% by mass or less with respect to 100% by mass in total of the three components. To do.

[1] About Each Component (1) Polyamide Resin The “polyamide resin” is a polymer having a chain skeleton formed by polymerizing a plurality of monomers via an amide bond (—NH—CO—). . In the present invention, this polyamide resin is polyamide 11 (hereinafter also simply referred to as “PA11”), polyamide 610 (hereinafter also simply referred to as “PA610”), polyamide 614 (hereinafter also simply referred to as “PA614”), polyamide 1010. (Hereinafter also simply referred to as “PA1010”) and polyamide 10T (hereinafter also simply referred to as “PA10T”).

  The PA11 is a polyamide resin having a structure in which a monomer having 11 carbon atoms is bonded through an amide bond. PA11 is usually obtained using aminoundecanoic acid or undecanactam as a monomer. In particular, aminoundecanoic acid is a monomer obtained from castor oil and is therefore desirable from the viewpoint of environmental protection (particularly from the viewpoint of carbon neutral). The structural unit derived from the monomer having 11 carbon atoms is preferably 50% or more of all the structural units in PA11, and may be 100%.

  The PA610 is a polyamide resin having a structure in which a monomer having 6 carbon atoms and a monomer having 10 carbon atoms are bonded through an amide bond. Normally, PA610 is obtained by copolymerization of diamine and dicarboxylic acid, and hexamethylenediamine and sebacic acid are used for each. Of these, sebacic acid is a monomer obtained from castor oil, and is therefore desirable from the viewpoint of environmental protection (particularly from the viewpoint of carbon neutral). The structural unit derived from the monomer having 6 carbon atoms and the structural unit derived from the monomer having 10 carbon atoms are 50% of the total structural unit in PA610. The above is preferable, and may be 100%.

  The PA 1010 is a polyamide resin having a structure in which a diamine having 10 carbon atoms and a dicarboxylic acid having 10 carbon atoms are copolymerized. Usually, PA1010 uses 1,10-decanediamine (decamethylenediamine) and sebacic acid. Decamethylenediamine and sebacic acid are monomers obtained from castor oil, and are therefore desirable from the viewpoint of environmental protection (particularly from the viewpoint of carbon neutral). The total of the structural unit derived from the diamine having 10 carbon atoms and the structural unit derived from the dicarboxylic acid having 10 carbon atoms is 50% or more of all the structural units in the PA 1010. Preferably, it may be 100%.

  The PA614 is a polyamide resin having a structure in which a monomer having 6 carbon atoms and a monomer having 14 carbon atoms are bonded through an amide bond. Usually, PA614 is obtained by copolymerization of a diamine (specifically, hexamethylenediamine) with a dicarboxylic acid derived from a plant and having 14 carbon atoms. And since plant-derived carboxylic acid is used, it is desirable from the viewpoint of environmental protection (particularly from the viewpoint of carbon neutral). The structural unit derived from the monomer having 6 carbon atoms and the structural unit derived from the monomer having 14 carbon atoms have a total of 50% of all the structural units in PA614. The above is preferable, and may be 100%.

  The PA10T is a polyamide resin having a structure in which a diamine having 10 carbon atoms and terephthalic acid are bonded through an amide bond. Normally, PA10T uses 1,10-decanediamine (decane diamine) and terephthalic acid. Of these, decamethylenediamine is a monomer obtained from castor oil, and is therefore desirable from the viewpoint of environmental protection (particularly from the viewpoint of carbon neutral). These structural units derived from diamine having 10 carbon atoms and structural units derived from terephthalic acid preferably have a total of 50% or more of all structural units in PA10T, 100% It may be.

Among the five plant-derived polyamide resins, PA11 is superior to the other four plant-derived polyamide resins in terms of low water absorption, low specific gravity, and high planting degree.
Polyamide 610 is inferior to PA 11 in terms of water absorption, chemical resistance, and impact strength, but is superior in terms of heat resistance (melting point) and rigidity (strength). Furthermore, since it has low water absorption and good dimensional stability compared to polyamide 6 and polyamide 66, it can be used as an alternative to polyamide 6 and polyamide 66.
Polyamide 1010 is superior to PA11 in terms of heat resistance and rigidity. Furthermore, the degree of planting is equivalent to that of PA11, and can be used for parts that require more durability.
Since polyamide 10T includes an aromatic ring in the molecular skeleton, it has a higher melting point and higher rigidity than polyamide 1010. Therefore, it can be used in harsh environments (heat-resistant part, strength input part).

  The content of the polyamide resin (plant-derived polyamide resin) is 1% by mass or more and 80% by mass or less when the total of the polyamide resin, the polyolefin resin, and the compatibilizer is 100% by mass. In this range, it is possible to obtain a molded article having excellent impact resistance and excellent rigidity. This content is more preferably 10% by mass or more and 40% by mass or less. Within this range, the polyolefin resin serves as the parent phase, the polyamide resin (plant-derived polyamide resin) serves as the dispersed phase, and the polyamide resin can be further dispersed in the mother phase. Furthermore, the specific gravity of the whole thermoplastic resin composition can be reduced by reducing the amount of polyamide resin having a large specific gravity. Thereby, it is possible to obtain a molded body having excellent rigidity as well as excellent impact resistance while being lightweight. This content is further preferably 10% by mass or more and 35% by mass or less, and particularly preferably 10% by mass or more and 30% by mass or less.

(2) Polyolefin Resin The “polyolefin resin” is an olefin homopolymer and / or an olefin copolymer. Examples of the olefin include ethylene, propylene, 1-butene, 3-methyl-1-butene, 1-pentene, 3-methyl-1-pentene, 4-methyl-1-pentene, 1-hexene and 1-octene. It is done.
That is, examples of the polyolefin resin include polyethylene resin, polypropylene resin, poly 1-butene, poly 1-hexene, poly 4-methyl-1-pentene, and the like. These polymers may be used alone or in combination of two or more. That is, the polyolefin resin may be a mixture of the above polymers.

Examples of the polyethylene resin include ethylene homopolymers and copolymers of ethylene and other olefins. Examples of the latter include ethylene / 1-butene copolymer, ethylene / 1-hexene copolymer, ethylene / 1-octene copolymer, ethylene / 4-methyl-1-pentene copolymer, etc. 50% or more of the total number of structural units is a unit derived from ethylene).
Examples of the polypropylene resin include propylene homopolymers, propylene / ethylene copolymers, propylene / 1-butene copolymers, etc. (provided that 50% or more of the total number of structural units is derived from propylene). Is).

  Among these, the polyethylene resin and the polypropylene resin are preferable, and the polypropylene resin is particularly preferable from the viewpoint of impact resistance. The polypropylene resin also includes a mixed resin of the polypropylene resin and the polyethylene resin. In this case, when the total of the polypropylene resin and the polyethylene resin is 100% by mass, the content of the polypropylene resin is 50% by mass or more.

  Although the weight average molecular weight (polystyrene conversion) by the gel permeation chromatography (GPC) of polyolefin resin is not specifically limited, It is preferable that it is 100,000-500,000, More preferably, it is 100,000-450,000, Furthermore, Preferably it is 200,000-400,000.

  The content of the polyolefin resin is 5% by mass or more and 75% by mass or less with respect to 100% by mass in total of the polyamide resin (plant-derived polyamide resin), the polyolefin resin, and the compatibilizer. In this range, it is possible to obtain a molded article having excellent impact resistance and excellent rigidity. This content is more preferably 50% by mass or more and 75% by mass or less. Within this range, the polyolefin resin serves as the parent phase, the polyamide resin (plant-derived polyamide resin) serves as the dispersed phase, and the polyamide resin can be further dispersed in the mother phase. Furthermore, the specific gravity of the whole thermoplastic resin composition can be reduced by reducing the amount of polyamide resin having a large specific gravity. Thereby, it is possible to obtain a molded body having excellent rigidity as well as excellent impact resistance while being lightweight. This content is further preferably 52.5% by mass or more and 75% by mass or less, and particularly preferably 55% by mass or more and 70% by mass or less.

  Furthermore, since the content of the polyamide resin can be reduced while sufficiently maintaining the above mechanical properties, it is possible to obtain a calm appearance while suppressing the gloss of the surface when formed into a molded body. Accordingly, application to exterior materials and interior materials that are directly visible is possible, and excellent design properties can be exhibited.

  The polyolefin resin is a polyolefin having no affinity for the polyamide resin and a polyolefin having no reactive group capable of reacting with the polyamide resin. It is different from the polyolefin-based component as a compatibilizer included in the agent.

(3) Compatibilizer The “compatibilizer” is an acid-modified olefinic thermoplastic elastomer. That is, it is a modified elastomer in which an acid group capable of interacting with a polyamide resin is introduced into an olefin-based thermoplastic elastomer.
Examples of the olefin-based thermoplastic elastomer include those obtained by copolymerizing two or more olefins. Examples of the olefin include ethylene, propylene, and an α-olefin having 4 to 8 carbon atoms. Among these, examples of the α-olefin having 4 to 8 carbon atoms include 1-butene, 3-methyl-1-butene, 1-pentene, 3-methyl-1-pentene, 4-methyl-1-pentene, 1-hexene, 1-octene and the like can be mentioned.
Among these, as the olefin-based thermoplastic elastomer, a copolymer of ethylene and an α-olefin having 3 to 8 carbon atoms and a copolymer of propylene and an α-olefin having 4 to 8 carbon atoms are preferable. .

  That is, as a copolymer of ethylene and an α-olefin having 3 to 8 carbon atoms, an ethylene / propylene copolymer (EPR), an ethylene / 1-butene copolymer (EBR), an ethylene / 1-pentene copolymer is used. And an ethylene / 1-octene copolymer (EOR). Examples of the copolymer of propylene and an α-olefin having 4 to 8 carbon atoms include propylene / 1-butene copolymer (PBR), propylene / 1-pentene copolymer, propylene / 1-octene copolymer. (POR). Among these, EPR, EBR, and EOR are preferable, and EBR and EOR are more preferable.

On the other hand, examples of the acid group introduced into the olefin-based thermoplastic elastomer include an acid anhydride group (—CO—O—OC—) and / or a carboxyl group (—COOH). The method for imparting these reactive groups to the elastomer is not particularly limited, and a known method can be used.
Among the acid groups, an acid anhydride group is particularly preferable. Examples of the monomer for introducing the acid anhydride group include maleic anhydride, phthalic anhydride, itaconic anhydride, succinic anhydride, glutaric anhydride, adipic anhydride, citraconic anhydride, and tetrahydrophthalic anhydride. And acid anhydrides such as butenyl succinic anhydride. Among these, maleic anhydride, phthalic anhydride, and itaconic anhydride are preferable, and maleic anhydride is particularly preferable. These monomers may be used individually by 1 type, and may be used in combination of 2 or more type.

That is, as the acid-modified olefin thermoplastic elastomer, maleic anhydride-modified ethylene-1-butene copolymer or maleic anhydride-modified ethylene-octene copolymer is particularly preferable. When this compatibilizer is used, it is preferable to achieve both excellent impact resistance and excellent rigidity while achieving a particularly small specific gravity.
In addition, when using the olefin type thermoplastic elastomer into which acid groups, such as an acid anhydride group, were used as a compatibilizing agent, the quantity of the acid group is not specifically limited.

  The content of the compatibilizer is 1% by mass to 30% by mass with respect to 100% by mass in total of the polyamide resin (plant-derived polyamide resin), the polyolefin resin, and the compatibilizer. In this range, it is possible to obtain a molded article having excellent impact resistance and excellent rigidity. This content is more preferably 5% by mass or more and 30% by mass or less. Within this range, the polyolefin resin serves as the parent phase, the polyamide resin (plant-derived polyamide resin) serves as the dispersed phase, and the polyamide resin can be further dispersed in the mother phase. Thereby, it is possible to obtain a molded body having particularly excellent rigidity as well as particularly excellent impact resistance. This content is further preferably 10% by mass or more and 30% by mass or less, and particularly preferably 10% by mass or more and 25% by mass or less.

  According to the thermoplastic resin composition using the plant-derived polyamide resin of the present invention, excellent fluidity can be obtained. In particular, the present composition comprises a polyamide resin having a content of 10% by mass to 40% by mass, a polyolefin resin having a content of 50% by mass to 75% by mass, and an acid-modified olefin-based thermoplastic elastomer. Excellent fluidity can be obtained when the content is 5% by mass or more and 30% by mass or less, and the moldability is excellent.

  Although the specific gravity of the thermoplastic resin composition using the plant-derived polyamide resin of the present invention is not particularly limited, it can usually be 1.05 or less. The specific gravity is such that the content of the polyamide 11 is 1% by mass to 40% by mass, the content of the polypropylene resin is 50% by mass to 75% by mass, and maleic anhydride-modified olefin When the content of the thermoplastic elastomer is 5% by mass or more and 30% by mass or less, the content can be particularly 0.89 or more and 1.05 or less, and more preferably 0.92 or more and 0.98 or less. be able to. That is, although the thermoplastic resin composition using the plant-derived polyamide resin of the present invention has a specific gravity equivalent to that of polyethylene resin and polypropylene resin, it has significantly superior impact resistance and rigidity than these resins. Can be obtained.

(4) Other Components In the thermoplastic resin composition using the plant-derived polyamide resin of the present invention, other components can be contained in addition to the polyamide resin, polyolefin resin and compatibilizer.
That is, for example, the polyamide resin is a polyamide resin selected from the plant-derived polyamide resins, but other thermoplastic resins not included in the polyamide resin are obstructed in the thermoplastic resin composition. It can be blended as long as it is not.
Other polyamide resins can also be obtained by copolymerization of diamine and dicarboxylic acid. In this case, the diamine as a monomer is ethylenediamine, 1,3-diaminopropane, 1,4-diaminobutane, 1,6-diaminohexane, 1,7-diaminoheptane, 1,8-diaminooctane, , 9-diaminononane, 1,11-diaminoundecane, 1,12-diaminododecane, 1,13-diaminotridecane, 1,14-diaminotetradecane, 1,15-diaminopentadecane, 1,16-diaminohexadecane, 1, 17-diaminoheptadecane, 1,18-diaminooctadecane, 1,19-diaminononadecane, 1,20-diaminoeicosane, 2-methyl-1,5-diaminopentane, 2-methyl-1,8-diaminooctane Aliphatic diamines such as cyclohexane diamine, bis- (4-aminocyclohex Le) cycloaliphatic diamines such as methane, aromatic diamines such as xylylenediamine (p- phenylenediamine and m- phenylenediamine and the like). These monomers may be used individually by 1 type, and may be used in combination of 2 or more type.

  Furthermore, as the dicarboxylic acid as a monomer, oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, undecanedioic acid, dodecanedioic acid, brassic acid, tetradecanedioic acid , Aliphatic dicarboxylic acids such as pentadecanedioic acid and octadecanedioic acid, alicyclic dicarboxylic acids such as cyclohexanedicarboxylic acid, aromatic dicarboxylic acids such as phthalic acid, terephthalic acid, isophthalic acid, naphthalenedicarboxylic acid, etc. It is done. These monomers may be used individually by 1 type, and may be used in combination of 2 or more type.

That is, examples of other polyamides include polyamide 6, polyamide 66, polyamide 612, polyamide 12, polyamide 6T, polyamide 6I, polyamide 9T, and polyamide M5T. These other polyamides may be used alone or in combination of two or more. However, when other polyamides are contained, the content of other polyamides is less than 40% by mass when the total of the polyamide resin (plant-derived polyamide resin) and the other polyamide resin is 100% by mass. It is.
In other polyamide resins, it is preferable that half or more (50% or more) of carbon atoms constituting the main chain constitute a chain skeleton. That is, other polyamide resins may contain an aromatic skeleton, but the carbon atoms constituting the aromatic skeleton are preferably less than half (less than 50%) of the carbon atoms constituting the main chain.

Further, the compatibilizing agent is an acid-modified olefinic thermoplastic elastomer, but the present thermoplastic resin composition contains other compatibilizing agent not included in the compatibilizing agent of the present invention. It can mix | blend in the range which does not inhibit the objective.
That is, for example, a modified thermoplastic elastomer other than an acid-modified olefinic thermoplastic elastomer, which is provided with a reactive group capable of reacting with a polyamide resin, can be used. As this thermoplastic elastomer, an olefin thermoplastic elastomer and a styrene thermoplastic elastomer are preferable.

As the olefin-based thermoplastic elastomer, various elastomers exemplified above can be used. On the other hand, examples of the styrenic thermoplastic elastomer include a block copolymer of a styrene compound and a conjugated diene compound, and a hydrogenated product thereof.
Examples of the styrene compound include alkyl styrene such as styrene, α-methyl styrene, p-methyl styrene, and pt-butyl styrene, p-methoxy styrene, and vinyl naphthalene.
Examples of the conjugated diene compound include butadiene, isoprene, piperylene, methylpentadiene, phenylbutadiene, 3,4-dimethyl-1,3-hexadiene, 4,5-diethyl-1,3-octadiene, and the like.

  Specific styrenic thermoplastic elastomers include, for example, styrene-butadiene-styrene copolymer (SBS), styrene-isoprene-styrene copolymer (SIS), and styrene-ethylene / butylene-styrene copolymer (SEBS). And styrene-ethylene / propylene-styrene copolymer (SEPS).

The reactive group capable of reacting with the polyamide resin includes an acid anhydride group (—CO—O—OC—), a carboxyl group (—COOH), an epoxy group [—C ₂ O (two carbon atoms and one A three-membered ring structure comprising an oxygen atom)], an oxazoline group (—C ₃ H ₄ NO), an isocyanate group (—NCO), and the like.

  That is, examples of other compatibilizers include epoxy-modified olefinic thermoplastic elastomers, acid-modified styrene-based thermoplastic elastomers, and epoxy-modified styrene-based thermoplastic elastomers. Among them, examples of the acid-modified styrenic thermoplastic elastomer include maleic anhydride-modified styrene thermoplastic elastomers such as maleic anhydride-modified SEBS. These other compatibilizers may be used alone or in combination of two or more.

  Further examples include thermoplastic resins other than polyamide resins, polyolefin resins, and compatibilizers, flame retardants, flame retardant aids, fillers, colorants, antibacterial agents, and antistatic agents. These may be used individually by 1 type and may be used in combination of 2 or more type.

Examples of the other thermoplastic resins include polyester resins (polybutylene terephthalate, polyethylene terephthalate, polycarbonate, polybutylene succinate, polyethylene succinate, polylactic acid) and the like.
Examples of the flame retardant include halogen flame retardant (halogenated aromatic compound), phosphorus flame retardant (nitrogen-containing phosphate compound, phosphate ester, etc.), nitrogen flame retardant (guanidine, triazine, melamine, and These derivatives, etc.), inorganic flame retardants (metal hydroxides, etc.), boron flame retardants, silicone flame retardants, sulfur flame retardants, red phosphorus flame retardants and the like.
Examples of the flame retardant aid include various antimony compounds, metal compounds containing zinc, metal compounds containing bismuth, magnesium hydroxide, and clay silicates.
Examples of the filler include glass components (glass fibers, glass beads, glass flakes, etc.), silica, inorganic fibers (glass fibers, alumina fibers, carbon fibers), graphite, silicate compounds (calcium silicate, aluminum silicate, kaolin, Talc, clay, etc.), metal oxides (iron oxide, titanium oxide, zinc oxide, antimony oxide, alumina, etc.), carbonates and sulfates of metals such as calcium, magnesium, zinc, organic fibers (aromatic polyester fibers, aromatic Polyamide fiber, fluororesin fiber, polyimide fiber, vegetable fiber, etc.)
Examples of the colorant include pigments and dyes.

[2] Production Method The production method of the thermoplastic resin composition using the plant-derived polyamide resin of the present invention is not particularly limited, and can be obtained by kneading a polyamide resin, a polyolefin resin, and a compatibilizer. Specifically, for example, (1) a polyamide resin, a polyolefin resin, and a compatibilizer are kneaded simultaneously; (2) a kneaded resin obtained by kneading the polyamide resin and the compatibilizer; and a polyolefin resin; (3) Kneading a kneaded resin obtained by kneading a polyolefin resin and a compatibilizer with a polyamide resin, and the like. Among these, the method (2) can obtain more excellent impact resistance and rigidity even when the blending amount is the same as in the above (1) and (3).

The kneading method in each of the above steps is not particularly limited. For example, a kneading apparatus such as an extruder (single screw extruder, twin screw kneading extruder, etc.), a kneader and a mixer (high-speed flow mixer, paddle mixer, ribbon mixer, etc.) Can be used. These apparatuses may use only 1 type and may use 2 or more types together. Moreover, when using 2 or more types, you may drive | operate continuously and may operate | move batchwise (batch type).
In addition, each component may be mixed in a lump, or may be added and added (multistage blending) in a plurality of times.

  The mixing temperature in this mixing step is not particularly limited as long as it is a temperature at which melt mixing can be performed, and can be appropriately adjusted depending on the type of each component. In particular, it is preferable that any thermoplastic resin is mixed in a molten state. Specifically, this mixing temperature can be 190-350 degreeC, Preferably it is 200-330 degreeC, More preferably, it is 205-310 degreeC.

[3] Molded body The thermoplastic resin composition obtained by this method may be molded in any way, and the method is not particularly limited. Further, the shape, size, thickness and the like of the obtained molded body are not particularly limited, and the use thereof is not particularly limited.
That is, the molded body of the present invention is used as, for example, exterior materials, interior materials, and structural materials for automobiles, railway vehicles, ships, airplanes, and the like. Among these, examples of the automobile supplies include automobile exterior materials, automotive interior materials, automotive structural materials, and engine room components. Specifically, bumper, spoiler, cowling, front grill, garnish, bonnet, trunk lid, fender panel, door panel, roof panel, instrument panel, door trim, quarter trim, roof lining, pillar garnish, deck trim, tonneau board, package Tray, dashboard, console box, kicking plate, switch base, seat back board, seat frame, armrest, sun visor, intake manifold, engine head cover, engine under cover, oil filter housing, air filter box, ECU box, TV monitor, etc. For example, a housing for an in-vehicle electronic component may be used.

Furthermore, for example, it can be used as a housing or a structure of a thin large TV, a refrigerator, a washing machine, a vacuum cleaner, an air conditioner, a mobile phone, a portable game machine, a notebook personal computer, etc., which are home appliances.
In addition, they are used as interior materials such as buildings and furniture, exterior materials, and structural materials. That is, a door cover material, a door structure material, a cover material of various furniture (desks, chairs, shelves, bags, etc.), a structural material, and the like. In addition, a package, a container (such as a tray), a protective member, a partition member, and the like can be given.

Hereinafter, the present invention will be described specifically by way of examples.
[1] Production of thermoplastic resin composition using PA11 as polyamide resin and production of test piece <Experimental Examples 1 to 18 (product of the present invention)>
(A) PA11 (polyamide 11 resin, manufactured by Arkema Co., Ltd., product name “Rilsan BMN O”, weight average molecular weight 18,000) is used as the polyamide resin, and (c) maleic anhydride modification is used as the (C) compatibilizer. Using ethylene / butene copolymer (modified EBR) {made by Mitsui Chemicals, product name “Toughmer MH7020”, MFR (230 ° C.) = 1.5 g / 10 min}, the composition shown in Table 1 or Table 2 is obtained. After each pellet was dry blended as above, it was put into a biaxial melt kneading extruder (manufactured by Technobell, screw diameter 15 mm, L / D = 59), kneading temperature 210 ° C., extrusion speed 2.0 kg / hour, screw Kneading is carried out at a rotation speed of 200 rpm, and the composition extruded using a pelletizer is cut into a polyamide resin (A) and a compatibilizing agent ( ) To obtain a mixed resin of.

  Next, Table 1 or Table 2 shows the obtained mixed resin and (B) polypropylene resin (manufactured by Nippon Polypro Co., Ltd., product name “Novatech MA1B”, homopolymer, weight average molecular weight 312,000). Each pellet was dry blended so as to have the composition shown in the figure, and then charged into a biaxial melt kneading extruder (manufactured by Technobell, screw diameter 15 mm, L / D = 59), kneading temperature 210 ° C., extrusion speed 2.0 kg. Kneading under the conditions of 200 rpm / minute of screw rotation / minute, and further cutting the composition extruded using a pelletizer, and a thermoplastic resin composition using the plant-derived polyamide resin of Experimental Examples 1-18 A pellet made of material was obtained.

  Thereafter, the pellets made of the compositions of Experimental Examples 1 to 18 were put into a hopper of an injection molding machine (manufactured by Nissei Plastic Industry Co., Ltd., 40 ton injection molding machine), set temperature 210 ° C., mold temperature 60 The test piece for physical property measurement which consists of a thermoplastic resin composition using the plant-derived polyamide resin of Experimental Examples 1-18 was obtained by injection molding under the injection condition of ° C.

<Experimental example 19 (product of the present invention)>
(C) As a compatibilizer, (c2) maleic anhydride-modified propylene / butene copolymer (modified EPR) {manufactured by Mitsui Chemicals, Inc., product name “Toughmer MP0620”, MFR (230 ° C.) = 0.3 g / 10 Except that was used, pellets made of a thermoplastic resin composition using the plant-derived polyamide resin of Experimental Example 19 were obtained in the same manner as in Experimental Examples 1-18. Then, the test piece for a physical-property measurement which consists of a thermoplastic resin composition using the plant-derived polyamide resin of Experimental example 19 was obtained like Experimental example 1-18.

<Experimental example 20 (product of the present invention)>
(B) Polypropylene resin (manufactured by Nippon Polypro Co., Ltd., product name “NOVATEC MA1B”, homopolymer, weight average molecular weight 312,000) is used as the polyolefin resin, and (c) maleic anhydride modified as (C) compatibilizer. An ethylene / propylene copolymer (modified EPR) {manufactured by Mitsui Chemicals, Inc., product name “Toughmer MP0620”, MFR (230 ° C.) = 0.3 g / 10 min}, After the pellets were dry blended, they were put into a twin-screw melt kneading extruder (manufactured by Technobell, screw diameter 15 mm, L / D = 59), kneading temperature 210 ° C., extrusion speed 2.0 kg / hour, screw rotation speed 200 Kneading is performed under the conditions of rotation / minute, and the composition extruded using a pelletizer is cut to obtain a polyolefin resin (B) To obtain a mixed resin of compatibilizer (C).

  Next, the blended resin obtained and (A) PA11 as a polyamide resin (polyamide 11 resin, manufactured by Arkema Co., Ltd., product name “Rilsan BMN O”, weight average molecular weight 18,000) are shown in Table 2. Each of the pellets was dry blended so as to be put into a biaxial melt kneading extruder (manufactured by Technobell, screw diameter 15 mm, L / D = 59), kneading temperature 210 ° C., extrusion rate 2.0 kg / hour, Kneading is carried out under the condition of a screw rotation speed of 200 rpm, and further, the composition extruded using a pelletizer is cut to obtain pellets made of a thermoplastic resin composition using the plant-derived polyamide resin of Experimental Example 20. Obtained.

  Thereafter, the obtained pellets made of the composition of Experimental Example 20 were put into a hopper of an injection molding machine (manufactured by Nissei Plastic Industry Co., Ltd., 40 ton injection molding machine), and set temperature 210 ° C. and mold temperature 60 ° C. The test piece for physical property measurement which consists of a thermoplastic resin composition using the plant-derived polyamide resin of Experimental Example 20 was obtained by injection molding under injection conditions.

<Experimental example 21 (product of the present invention)>
(C) As a compatibilizer, (c3) maleic anhydride modified ethylene / octene copolymer (modified EOR) {manufactured by Dow Chemical Co., Ltd., product name “AMPLIFY GR216”, weight average molecular weight 150,000, maleic anhydride modified Except for using the amount = 0.8 wt%}, pellets made of a thermoplastic resin composition using the plant-derived polyamide resin of Experimental Example 21 were obtained in the same manner as in Experimental Examples 1-18. Then, the test piece for a physical-property measurement which consists of a thermoplastic resin composition using the plant-derived polyamide resin of Experimental example 21 was obtained like Experimental example 1-18.

[2] Performance evaluation of thermoplastic resin composition (1) Measurement of Charpy impact strength In accordance with JIS K7111-1 using the test pieces for measuring physical properties of Experimental Examples 1 to 21 obtained in [1] above. The Charpy impact strength was measured. The results are shown in Tables 1 and 2. In this Charpy impact strength measurement, a test piece having a notch (type A) was used, and the impact was measured by an edgewise test method at a temperature of 23 ° C.

(2) Measurement of flexural modulus The flexural modulus was measured according to JIS K7171 using the test pieces for measuring physical properties of Experimental Examples 1 to 21 obtained in [1] above. The results are shown in Tables 1 and 2. This bending elastic modulus is measured at a speed of 2 mm from an action point (curvature radius 5 mm) arranged at the center between the fulcrums while supporting each test piece at two fulcrums (curvature radius 5 mm) with a distance (L) between the fulcrums of 64 mm. The measurement was performed by applying a load at / min.

[3] Measurement Results According to Tables 1 and 2, in Experimental Examples 1 to 21, the flexural modulus is 453 to 1275 MPa, the Charpy impact strength is 3.7 to 86.3 kJ / m ² , and the rigidity is high. It was found to be excellent as well as impact resistance.

[4] Production of thermoplastic resin composition using resin other than PA11 as polyamide resin and production of test piece <Experimental Example 22 (product of the present invention)>
(A) PA610 (nylon 610 resin, manufactured by Daicel-Evonik Co., Ltd., product name “Vestamid Terra HS16”, melting point 222 ° C.) is used as the polyamide resin, and (C) maleic anhydride-modified ethylene / butene is used as a compatibilizer. Using a polymer (modified EBR) {manufactured by Mitsui Chemicals, product name “Tuffmer MH7020”, MFR (230 ° C.) = 1.5 g / 10 min}, each pellet was dry blended so as to have the composition shown in Table 3. Thereafter, it was put into a twin-screw melt kneading extruder (manufactured by Parker Corporation, screw diameter 25 mm, L / D = 41), kneading temperature 235 ° C., extrusion speed 3.0 kg / hour, screw rotation speed 200 revolutions / minute. Kneading is carried out under the conditions, and the composition extruded with a pelletizer is cut to be compatible with the polyamide resin (A). To obtain a mixed resin of agent (C).
Subsequently, the obtained mixed resin and (B) polypropylene resin as a polyolefin resin (manufactured by Nippon Polypro Co., Ltd., product name “Novatech MA1B”, homopolymer, weight average molecular weight 312,000) are shown in Table 3. Each pellet was dry-blended so as to be put into a biaxial melt kneading extruder (manufactured by Parker Corporation, screw diameter 25 mm, L / D = 41), kneading temperature 235 ° C., extrusion rate 3.0 kg / hour. Kneaded under the conditions of a screw speed of 200 revolutions / minute, and further, the composition extruded using a pelletizer is cut to form pellets comprising a thermoplastic resin composition using the plant-derived polyamide resin of Experimental Example 22 Got.
Thereafter, the pellets made of the composition of Experimental Example 22 were put into a hopper of an injection molding machine (manufactured by Nissei Plastic Industry Co., Ltd., 40 ton injection molding machine), and the set temperature was 235 ° C. and the mold temperature was 60 ° C. Injection molding was performed under injection conditions to obtain a test piece for measuring physical properties comprising a thermoplastic resin composition using the plant-derived polyamide resin of Experimental Example 22.

<Experimental Examples 23 to 27 (Product of the present invention)>
Except that each pellet was dry blended so as to have the composition shown in Table 3, pellets of the thermoplastic resin compositions of Experimental Examples 23 to 27 were produced in the same manner as Experimental Example 22. Subsequently, injection molding was performed in the same manner as in Experimental Example 22, and test pieces for measuring physical properties of Experimental Examples 23 to 27 were obtained.

<Experimental example 28> (Comparative product)
(A) PA610 (nylon 610 resin, manufactured by Daicel Evonik Co., Ltd., product name “Vestamid Terra HS16”, melting point 222 ° C.) as the polyamide resin, and (B) polypropylene resin (manufactured by Nippon Polypro Co., Ltd., product name “ Novatec MA1B ", homopolymer, weight average molecular weight 312,000), and after dry blending so as to have the composition shown in Table 3, twin-screw melt kneading extruder (manufactured by Parker Corporation, screw diameter 25 mm, L / D = 41), mixing at a kneading temperature of 235 ° C., an extrusion speed of 3.0 kg / hour, a screw speed of 200 revolutions / minute, and further extruding the thermoplastic resin composition extruded using a pelletizer Thermoplastic using the plant-derived polyamide resin of Experimental Example 28 after cutting The pellets of the resin composition was produced.
Thereafter, the obtained pellets made of the composition of Experimental Example 28 were put into a hopper of an injection molding machine (Nissei Plastic Industry Co., Ltd., 40 ton injection molding machine), and the set temperature was 235 ° C. and the mold temperature was 60 ° C. Test specimens for measuring physical properties were injection molded under injection conditions.

<Experimental example 29 (product of the present invention)>
(A) PA1010 (nylon 1010 resin, manufactured by Daicel-Evonik Co., Ltd., product name “Vestamid Terra DS16”, melting point 206 ° C.) is used as the polyamide resin, and (C) maleic anhydride-modified ethylene / butene copolymer is used as the compatibilizer. Using a polymer (modified EBR) {manufactured by Mitsui Chemicals, product name “Tuffmer MH7020”, MFR (230 ° C.) = 1.5 g / 10 min}, each pellet was dry blended so as to have the composition shown in Table 4. Thereafter, it was put into a biaxial melt kneading extruder (manufactured by Parker Corporation, screw diameter 25 mm, L / D = 41), kneading temperature 250 ° C., extrusion speed 3.0 kg / hour, screw rotation speed 200 revolutions / minute. Kneading is performed under the conditions, and the composition extruded using a pelletizer is cut to obtain a polyamide resin (A) To obtain a mixed resin of compatibilizer (C).
Next, the blended resin obtained and (B) polypropylene resin (manufactured by Nippon Polypro Co., Ltd., product name “Novatech MA1B”, homopolymer, weight average molecular weight 312,000) as a polyolefin resin are shown in Table 4. Each pellet was dry-blended so as to be put into a biaxial melt kneading extruder (manufactured by Parker Corporation, screw diameter 25 mm, L / D = 41), kneading temperature 250 ° C., extrusion speed 3.0 kg / hour. Kneaded under the conditions of a screw rotational speed of 200 revolutions / minute, and further, the composition extruded using a pelletizer was cut, and pellets comprising a thermoplastic resin composition using the plant-derived polyamide resin of Experimental Example 29 Got.
Thereafter, the pellets made of the composition of Experimental Example 29 were put into a hopper of an injection molding machine (manufactured by Nissei Plastic Industry Co., Ltd., 40 ton injection molding machine), and the set temperature was 250 ° C. and the mold temperature was 60 ° C. The test piece for physical property measurement which consists of a thermoplastic resin composition using the plant-derived polyamide resin of Experimental Example 29 was obtained by injection molding under injection conditions.

<Experimental Examples 30 to 34 (product of the present invention)>
Except having dry-blended each pellet so that it might become the mixing | blending shown in Table 4, it carried out similarly to Experimental example 29, and produced the pellet of the thermoplastic resin composition of Experimental example 30-34. Next, injection molding was performed in the same manner as in Experimental Example 29, and test pieces for measuring physical properties of Experimental Examples 30 to 34 were obtained.

<Experimental example 35> (Comparative product)
(A) PA1010 (nylon 1010 resin, manufactured by Daicel-Evonik Co., Ltd., product name “Vestamid Terra DS16”, melting point 206 ° C.) as the polyamide resin, and (B) polypropylene resin (manufactured by Nippon Polypro Co., Ltd., product name “ Novatec MA1B ", homopolymer, weight average molecular weight 312,000), and after dry blending so as to have the composition shown in Table 4, a twin-screw melt kneading extruder (manufactured by Parker Corporation, screw diameter 25 mm, L / D = 41), mixing at a kneading temperature of 250 ° C., an extrusion speed of 3.0 kg / hour, a screw speed of 200 revolutions / minute, and further extruding the thermoplastic resin composition extruded using a pelletizer Cutting and heat using the plant-derived polyamide resin of Experimental Example 35 Pellets were produced consisting of plastic resin composition.
Thereafter, the pellets made of the composition of Experimental Example 35 were put into a hopper of an injection molding machine (manufactured by Nissei Plastic Industry Co., Ltd., 40 ton injection molding machine), and the set temperature was 250 ° C. and the mold temperature was 60 ° C. Test specimens for measuring physical properties were injection molded under injection conditions.

<Experimental example 36 (product of the present invention)>
(A) PA10T (nylon 10T resin, manufactured by Daicel Evonik Co., Ltd., product name “Vestamid HT Plus M3000”, melting point 285 ° C.) is used as the polyamide resin, and (C) maleic anhydride-modified ethylene butene is used as the compatibilizer. Using a copolymer (modified EBR) {Mitsui Chemicals Co., Ltd., product name “Tuffmer MH7020”, MFR (230 ° C.) = 1.5 g / 10 min}, each pellet was dry blended so as to have the composition shown in Table 5. After that, it was put into a twin-screw melt kneading extruder (manufactured by Parker Corporation, screw diameter 25 mm, L / D = 41), kneading temperature 310 ° C., extrusion speed 3.0 kg / hour, screw rotation speed 200 revolutions / minute. And kneading the extruded composition using a pelletizer to obtain a polyamide resin (A) And a compatibilizer (C) were obtained.
Next, the obtained mixed resin and (B) a polypropylene resin as a polyolefin resin (manufactured by Nippon Polypro Co., Ltd., product name “NOVATEC MA1B”, homopolymer, weight average molecular weight 312,000) are shown in Table 5. Each pellet was dry-blended so as to be put into a biaxial melt kneading extruder (manufactured by Parker Corporation, screw diameter 25 mm, L / D = 41), kneading temperature 310 ° C., extrusion rate 3.0 kg / hour. Kneaded under the conditions of a screw rotation speed of 200 rotations / minute, and further, the composition extruded using a pelletizer was cut to form pellets comprising a thermoplastic resin composition using the plant-derived polyamide resin of Experimental Example 36 Got.
Thereafter, the pellets made of the composition of Experimental Example 36 thus obtained were put into a hopper of an injection molding machine (manufactured by Nissei Plastic Industry Co., Ltd., 40 ton injection molding machine), and the set temperature was 310 ° C. and the mold temperature was 90 ° C. The test piece for physical property measurement which consists of a thermoplastic resin composition using the plant-derived polyamide resin of Experimental Example 36 was obtained by injection molding under injection conditions.

<Experimental Examples 37 to 38 (Product of the present invention)>
Except having dry-blended each pellet so that it might become the mixing | blending shown in Table 5, it carried out similarly to Experimental example 36, and produced the pellet of the thermoplastic resin composition of Experimental example 37-38. Subsequently, injection molding was performed in the same manner as in Experimental Example 36, and test pieces for measuring physical properties of Experimental Examples 37 to 38 were obtained.

<Experimental example 39> (Comparative product)
(A) PA10T (nylon 10T resin, manufactured by Daicel-Evonik Co., Ltd., product name “Vestamid HT Plus M3000”, melting point 285 ° C.) as the polyamide resin, and (B) polypropylene resin (manufactured by Nippon Polypro Co., Ltd., product name). Using “NOVATEC MA1B”, a homopolymer, and a weight average molecular weight of 312,000, after dry blending so as to have the composition shown in Table 5, a biaxial melt kneading extruder (manufactured by Parker Corporation, screw diameter 25 mm, L / D = 41), mixing at a kneading temperature of 310 ° C., an extrusion speed of 3.0 kg / hour, a screw rotation speed of 200 revolutions / minute, and further extruding using a pelletizer Using the plant-derived polyamide resin of Experimental Example 39 The pellet which consists of a plastic resin composition was produced.
Thereafter, the pellets made of the composition of Experimental Example 39 were put into a hopper of an injection molding machine (manufactured by Nissei Plastic Industry Co., Ltd., 40 ton injection molding machine), and the set temperature was 310 ° C. and the mold temperature was 90 ° C. Test specimens for measuring physical properties were injection molded under injection conditions.

[5] Performance evaluation of thermoplastic resin composition (Experimental Examples 22 to 39)
Using the test pieces for measuring physical properties of Experimental Examples 22 to 39 obtained in [4] above, Charpy impact strength and flexural modulus were measured by the same method as in [2] above. The results are also shown in Tables 3-5.

[6] Effect According to Table 3, in Experimental Example 28 in which PA610 was used as the polyamide and no compatibilizer was used, the flexural modulus was 1730 MPa, but the Charpy impact strength was 2.1 kJ / m ^2. It was a low value.
On the other hand, in Experimental Examples 22 to 27 using PA610 as the polyamide and the modified elastomer as the compatibilizer, the flexural modulus is 660 to 1390 MPa, and the Charpy impact strength is 5.4 to 40.0 kJ / m ² , which was found to be excellent in rigidity and impact resistance.

According to Table 4, in Example 35 where PA1010 was used as the polyamide and no compatibilizer was used, the flexural modulus was 1650 MPa, but the Charpy impact strength was a low value of 1.1 kJ / m ^2. there were.
In contrast, in Experimental Examples 29 to 34 using PA1010 as the polyamide and the modified elastomer as the compatibilizer, the flexural modulus is 550 to 1350 MPa, and the Charpy impact strength is 2.1 to 40.0 kJ / m ² , which was found to be excellent in rigidity and impact resistance.

According to Table 5, in Example 39 where PA10T was used as the polyamide and no compatibilizer was used, the flexural modulus was 1860 MPa, but the Charpy impact strength was as low as 1.1 kJ / m ^2. there were.
In contrast, in Experimental Examples 36 to 38 using PA10T as the polyamide and the modified elastomer as the compatibilizing agent, the flexural modulus is 910 to 1620 MPa, and the Charpy impact strength is 2.1 to 5.0 kJ / m ² , which was found to be excellent in rigidity and impact resistance.

  The foregoing examples are for illustrative purposes only and are not to be construed as limiting the invention. Although the invention has been described with reference to exemplary embodiments, it is to be understood that the language used in the description and illustration of the invention is illustrative and exemplary rather than limiting. As detailed herein, changes may be made in its form within the scope of the appended claims without departing from the scope or spirit of the invention. Although specific structures, materials and examples have been referred to in the detailed description of the invention herein, it is not intended to limit the invention to the disclosures presented herein, but rather, the invention is claimed. It covers all functionally equivalent structures, methods and uses within the scope of

Claims (6)

Polyamide resin, polyolefin resin, and compatibilizer are melt-kneaded,
The polyamide resin is at least one plant-derived polyamide resin of polyamide 11, polyamide 610, polyamide 614, polyamide 1010, and polyamide 10T, and the content thereof includes the polyamide resin, the polyolefin resin, and the compatibility. 1% by mass to 80% by mass with respect to the total of 100% by mass of the agent,
The content of the polyolefin resin is 5% by mass or more and 75% by mass or less with respect to 100% by mass in total of the polyamide resin, the polyolefin resin, and the compatibilizer,
The compatibilizer is an acid-modified olefinic thermoplastic elastomer, and the content thereof is 1% by mass with respect to 100% by mass in total of the polyamide resin, the polyolefin resin, and the compatibilizer. A thermoplastic resin composition using a plant-derived polyamide resin characterized by being 30% by mass or less. The content of the polyamide resin is 10% by mass or more and 40% by mass or less,
The content of the polyolefin resin is 50% by mass to 75% by mass,
The thermoplastic resin composition using the plant-derived polyamide resin according to claim 1, wherein the content of the compatibilizer is 5% by mass or more and 30% by mass or less.   The plant-derived polyamide resin according to claim 1 or 2, wherein the compatibilizer is a maleic anhydride-modified ethylene / 1-butene copolymer or a maleic anhydride-modified ethylene / octene copolymer. A thermoplastic resin composition using the same.   The thermoplastic resin composition using the plant-derived polyamide resin according to claim 3, wherein the polyamide resin is any one of polyamide 11, polyamide 610, polyamide 1010, and polyamide 10T, and the polyolefin resin is polypropylene.   The thermoplastic resin composition using the plant-derived polyamide resin according to claim 4, wherein the specific gravity is 0.89 or more and 1.05 or less.   A molded article comprising a thermoplastic resin composition using the plant-derived polyamide resin according to any one of claims 1 to 5.