JP5124901B2 - Wood substitute material - Google Patents

Description

  The present invention relates to a renewable wood substitute material that is excellent in workability such as nailing and cutting required for wood.

  The problem of depletion of fossil fuels such as petroleum has been highlighted, and biopolymers made of resin derived from plant resources have attracted attention as plastic materials.

  Among these, polylactic acid is expected to be a biopolymer capable of being melt-molded because lactic acid, which is a monomer, is produced at low cost by a fermentation method using microorganisms and has a high melting point of about 170 ° C.

  On the other hand, in recent years, there is a strong demand for wood substitute materials from the viewpoint of global depletion of wood resources and global environmental protection. In addition, most of the used wood is treated as waste, which causes social problems such as illegal dumping in large quantities. Some are cut and crushed and recycled as industrial raw materials such as wood boards and papermaking raw materials such as particleboard and fiberboard, but they can be reused for various industrial materials such as plywood, laminated lumber, and squarewood. Therefore, there is a demand for a highly recyclable wood substitute material that can be reused repeatedly for the same purpose.

 In addition, wood boards and plywood, such as particle boards and fiberboards, are subject to significant changes in dimensions and reduced strength due to water absorption. Is required.

Patent Document 1 discloses a resin composition obtained by heating and kneading a mixture of polylactic acid and wood powder or cellulose powder and an unsaturated carboxylic acid or a derivative thereof in the presence of a radical generator, and a molded article comprising the resin composition. Although the proposal has been made, the crystallization characteristics of the polylactic acid resin in the composition are not different from the crystallization characteristics of the polylactic acid resin alone, so that there is a problem that the heat resistance and dimensional stability are poor.
JP-A-11-124485 (page 2-4)

  An object of the present invention is to provide a renewable wood substitute material excellent in workability such as nailability and machinability necessary for wood.

    An object of the present invention is to provide a wood substitute material which is excellent in mechanical strength and heat resistance in addition to the processability by improving the crystallization characteristics.

  Furthermore, this invention makes it a subject to provide the wood substitute material which was further excellent in water resistance in addition to the said workability by mix | blending a preferable additive.

  The inventors of the present invention have arrived at the present invention as a result of intensive studies to solve the above problems.

That is, the present invention
(1) At least one selected from 1 to 350 parts by weight of a naturally derived organic filler, a glycerin plasticizer, a phosphate ester plasticizer and a polyalkylene glycol plasticizer with respect to 100 parts by weight of a plant resource-derived resin. A wood substitute material obtained by molding a resin composition comprising 0.01 to 5 parts by weight of a seed crystallization accelerator, wherein the water substitute thickness expansion coefficient is 1% or less,
(2) The wood substitute material according to (1) above, wherein the resin composition is formed by blending a carboxyl group-reactive endblocker.
(3) The wood substitute material according to the above (1) or (2), wherein the ash content of the naturally derived organic filler is 5% by weight or more and 30% by weight or less,
(4) The above (1), comprising at least one selected from aliphatic polyester resins and / or aliphatic aromatic polyester resins other than plant resource-derived resins, impact resistance improvers, and inorganic fillers. The wood substitute material according to any one of to (3),
(5) The plant resource-derived resin is a polylactic acid resin, and the crystallization temperature at the time of temperature reduction from the polylactic acid resin in the wood substitute material measured at 200 ° C./min from a temperature difference of 200 ° C. with a differential scanning calorimeter ( The wood substitute material according to any one of the above (1) to (4), wherein Tc) is 100 ° C. or higher,
(6) The wood substitute material according to any one of the above (1) to (5), wherein 50% by weight or more of the natural organic filler is waste paper powder,
(7) The wood substitute material according to any one of the above (1) to (6), wherein the organic filler derived from nature is paper powder containing aluminum, silicon, calcium, and sulfur,
(8) The wet bending strength is 20 MPa or more, the water absorption thickness expansion coefficient is 1% or less, and the moisture content is any one of the above (1) to (7) that satisfies at least one condition selected from 1% or less. Wood substitute materials,
(9) The wood substitute material according to any one of the above (1) to (8), wherein the wood substitute material is any one of civil engineering materials, building materials, furniture members, and pachinko parts materials,
(10) At least one selected from 1 to 350 parts by weight of a naturally derived organic filler, a glycerin plasticizer, a phosphate ester plasticizer and a polyalkylene glycol plasticizer with respect to 100 parts by weight of a plant resource-derived resin. A pachinko component material comprising 0.01 to 5 parts by weight of a seed crystallization accelerator, and (11) the pachinko component material according to (10) above, wherein the plant-derived resin is a polylactic acid resin. .

  ADVANTAGE OF THE INVENTION According to this invention, the renewable wood substitute material which is excellent in workability, mechanical characteristics, and durability, such as a nailing property and machinability required as wood, is provided.

  The resin derived from (A) plant resources used in the present invention is particularly limited as long as a part or all of the monomers forming the resin are made from plant resources such as corn, sweet potato, sugar cane, and wood. Specific examples include polylactic acid resins, polyglycolic acid resins, polyhydroxyalkanoate resins such as polyhydroxybutyrate, cellulose ester resins, polypropylene terephthalate resins, polybutylene succinate resins, and the like. Polylactic acid resin is particularly preferable.

  The polylactic acid resin used in the present invention is a polymer mainly composed of L-lactic acid and / or D-lactic acid, but may contain other copolymerization components other than lactic acid. Other monomer units include ethylene glycol, propylene glycol, butanediol, heptanediol, hexanediol, octanediol, nonanediol, decanediol, 1,4-cyclohexanedimethanol, neopentyl glycol, glycerin, pentane. Glycol compounds such as erythritol, bisphenol A, polyethylene glycol, polypropylene glycol and polytetramethylene glycol, oxalic acid, adipic acid, sebacic acid, azelaic acid, dodecanedioic acid, malonic acid, glutaric acid, cyclohexanedicarboxylic acid, terephthalic acid , Isophthalic acid, phthalic acid, naphthalenedicarboxylic acid, bis (p-carboxyphenyl) methane, anthracene dicarboxylic acid, 4,4′-diphenyl ether dicarbohydrate Acids, dicarboxylic acids such as 5-sodium sulfoisophthalic acid, 5-tetrabutylphosphonium isophthalic acid, hydroxycarboxylic acids such as glycolic acid, hydroxypropionic acid, hydroxybutyric acid, hydroxyvaleric acid, hydroxycaproic acid, hydroxybenzoic acid, and caprolactone And lactones such as valerolactone, propiolactone, undecalactone, and 1,5-oxepan-2-one. Such a copolymer component is preferably contained in an amount of generally 0 to 30 mol%, preferably 0 to 10 mol%, in all monomer components.

  In the present invention, it is preferable to use a polylactic acid resin having a high optical purity of the lactic acid component from the viewpoint of heat resistance. That is, among the total lactic acid components of the polylactic acid resin, it is preferable that 70% or more of the L isomer or 70% or more of the D isomer, and 80% or more of the L isomer or 80% or more of the D isomer. It is particularly preferred that 90% or more of the L isomer or 90% or more of the D isomer is contained, and 98% or more of the L isomer or 98% or more of the D isomer is contained. More preferably, the L-form is contained at 99% or more, or the D-form is contained at 99% or more. Moreover, the upper limit of the content of L-form or D-form is usually 100% or less.

  As a method for producing the polylactic acid resin, a known polymerization method can be used, and examples thereof include a direct polymerization method from lactic acid and a ring-opening polymerization method via lactide.

  The molecular weight and molecular weight distribution of the polylactic acid resin are not particularly limited as long as it can be substantially molded, but the weight average molecular weight is usually 10,000 or more, preferably 40,000 or more, and further 8 It is desirable to be 10,000 or more. The weight average molecular weight here refers to the molecular weight in terms of polymethyl methacrylate (PMMA) measured by gel permeation chromatography.

  The melting point of the polylactic acid resin is not particularly limited, but is preferably 120 ° C. or higher, more preferably 150 ° C. or higher, and particularly preferably 160 ° C. or higher. The melting point of the polylactic acid resin is usually increased by increasing the optical purity of the lactic acid component, and the polylactic acid resin having a melting point of 120 ° C. or higher contains 90% or more of the L form or 90% or more of the D form. In addition, a polylactic acid resin having a melting point of 150 ° C. or higher can be obtained by containing 95% or more of L-form or 95% or more of D-form.

  One type of resin derived from plant resources may be used, or two or more types may be used in combination.

  As the (B) naturally-derived organic filler used in the present invention, any organic-derived filler can be used as long as it is derived from a natural product, but it is preferable to contain cellulose.

  Specific examples of organic fillers of natural origin include rice husk, wood chips, okara, waste paper pulverized material, clothing pulverized material chips, cotton fiber, hemp fiber, bamboo fiber, wood fiber, kenaf fiber, hemp Fibers such as fiber, jute fiber, banana fiber, coconut fiber, etc., or pulp and cellulose fibers processed from these plant fibers, and fiber such as animal fibers such as silk, wool, Angola, cashmere, camel, paper powder , Wood powder, bamboo powder, cellulose powder, rice husk powder, fruit husk powder, chitin powder, chitosan powder, protein, starch, etc. From the viewpoint of moldability, paper powder, wood powder, bamboo powder , Cellulose powder, rice husk powder, fruit husk powder, chitin powder, chitosan powder, protein powder, starch powder and the like are preferable, paper powder, wood powder, bamboo powder, cellulose powder , Still more preferably paper dust and wood flour, paper powders are particularly preferred. In addition, these naturally-derived organic fillers may be collected directly from natural products, but from the viewpoint of protecting the global environment and conserving resources, waste materials such as waste paper, waste wood and old clothes are recycled. May be used.

  Waste paper is newspaper, magazine, other recycled pulp, or paperboard such as corrugated cardboard, cardboard, paper tube, etc. Any one can be used as long as it is processed from plant fiber. From the viewpoint of safety, crushed paperboard such as newspaper and corrugated cardboard, cardboard and paper tube is preferred.

  In addition, specific examples of wood used for wood flour include softwood materials such as pine, cedar, oak, and fir, and broad-leaved wood materials such as beech, shy, and eucalyptus.

  Although it does not specifically limit as paper powder, It is preferable that an adhesive agent is included from a viewpoint of a moldability. The adhesive is not particularly limited as long as it is usually used when processing paper. Emulsion adhesives such as vinyl acetate resin emulsions and acrylic resin emulsions, polyvinyl alcohol adhesives, Examples include cellulose-based adhesives, natural rubber-based adhesives, starch paste, and hot-melt adhesives such as ethylene-vinyl acetate copolymer resin-based adhesives and polyamide-based adhesives. Emulsion-based adhesives, polyvinyl alcohol-based adhesives An adhesive and a hot melt adhesive are preferable, and an emulsion adhesive and a polyvinyl alcohol adhesive are more preferable. These adhesives are also used as binders for paper processing agents. Adhesives include clay, bentonite, talc, kaolin, montmorillonite, mica, synthetic mica, zeolite, silica, graphite, carbon black, magnesium oxide, calcium oxide, titanium oxide, calcium sulfide, magnesium carbonate, calcium carbonate, carbonic acid. Inorganic fillers such as barium, barium sulfate, aluminum oxide and neodymium oxide are preferably contained, and clay, bentonite, talc, kaolinite, montmorillonite, synthetic mica and silica are more preferable.

  As the paper powder, from the point that crystallization characteristics can be improved, chemicals generally used as a raw material for papermaking, for example, sizing agents such as rosin, alkyl ketene dimer, alkenyl succinic anhydride, Paper strength enhancers such as polyacrylamide and starch, yield improvers such as polyethyleneimine, polymer flocculants, drainage improvers, deinking agents such as nonionic surfactants, slime controls such as organic halogens Agents, organic or enzyme-based pitch control agents, hydrogen peroxide and other cleaning agents, defoaming agents, pigment dispersants and lubricants, organic substances such as aluminum sulfate and polyaluminum chloride In addition, sodium hydroxide, magnesium hydroxide, sodium sulfate, Sodium acid, aluminum chloride, preferably includes an inorganic material such as chlorine sodium.

  Moreover, as a paper powder, from a moldability viewpoint, it is preferable that an ash content is 5 weight% or more, It is more preferable that it is 5.5 weight% or more, It is further more preferable that it is 8 weight% or more. The upper limit is not particularly limited, but is preferably 60% by weight or less, and more preferably 30% by weight or less. Here, the ash content is a ratio of the weight of the remaining ash content when the organic filler is baked at a high temperature of 450 ° C. or higher for 8 hours using an electric furnace or the like to the weight of the paper powder before baking.

  The paper powder preferably contains 5 to 20% by weight of an inorganic compound in the paper powder, more preferably contains aluminum, silicon, or calcium as an element of the inorganic compound, aluminum, silicon, calcium, Those containing sulfur are more preferred, those containing aluminum, silicon, calcium, sulfur and magnesium are particularly preferred, and those containing aluminum at least twice the content of magnesium are particularly preferred.

  The abundance ratio of aluminum, silicon, calcium, sulfur, and magnesium is not particularly limited. For example, when the total number of the elements is 100, aluminum is 1 to 60 mol% and silicon is 20 to 90. It is preferable that the mol%, calcium is 1 to 30 mol%, sulfur is 1 to 20 mol%, magnesium is 0 to 20 mol%, aluminum is 10 to 55 mol%, silicon is 20 to 85 mol%, and calcium is More preferably, it is 1 to 25 mol%, sulfur is 1 to 15 mol%, magnesium is 0 to 10 mol%, aluminum is 20 to 50 mol%, silicon is 25 to 80 mol%, and calcium is 3 to 20 mol%. %, Sulfur is 2 to 10 mol%, and magnesium is more preferably 0 to 8 mol%. About these elemental analysis, although it can measure even if it uses both the simple substance of a natural origin organic filler, and the ash content of a natural origin organic filler, in this invention, ash content is used. Elemental analysis is performed by using an apparatus that combines X-ray fluorescence analysis, atomic absorption spectrometry, scanning electron microscope (SEM) or transmission electron microscope (TEM), and energy dispersive X-ray microanalyzer (XMA). Although it can be measured, fluorescent X-ray analysis is used in the present invention.

  Moreover, as a paper powder, it is preferable from the viewpoint of a moldability to contain the cellulose which microparticles | fine-particles adhere on the surface. The fine particles are not particularly limited, and may be an inorganic filler contained in the adhesive as described above, and may be either an organic material or other inorganic material. The thing containing is preferable. The shape of the fine particles may be any of a needle shape, a plate shape, and a spherical shape. The size of the fine particles is not particularly limited, but is preferably distributed in the range of 0.1 to 5000 nm, more preferably in the range of 0.3 to 1000 nm. More preferably, it is distributed in the range of ˜500 nm, particularly preferably in the range of 1 to 100 nm, and most preferably in the range of 1 to 80 nm. Here, “distributed” in a specific range means that 80% or more of the total number of fine particles is included in the specific range. The adhesion form of the fine particles may be either in an aggregated state or a dispersed state, but is more preferably adhered in a dispersed state. The size of the fine particles is such that a molded product obtained from a resin composition containing a plant-derived resin and a naturally-derived organic filler can be observed with a transmission electron microscope at a magnification of 80,000 times. The total number is arbitrarily set to 100.

  Moreover, also in the organic filler derived from other natural products other than paper dust, it is preferable to select and use the above characteristics, that is, the ash content, the composition having the ash content, and the fine particles adhered.

  Moreover, in this invention, as long as the resin composition used by this invention is obtained, the organic filler derived from a natural product can be used by 1 type, or 2 or more types, However, The paper powder which has the said preferable characteristic is included. Is preferred. Further, it is preferable to contain 50% by weight or more of waste paper powder.

  In the present invention, it is preferable to add (C) an insecticide and / or an antiseptic, and among them, the addition of an insecticide can exterminate pests that reduce the durability of materials such as termites and bark beetles. Is preferable. Of the insect repellents, those having a particularly effective anti-ant effect are also called anti-repellent agents. Insect repellents and / or preservatives can be used without any particular limitation, but are relatively easy to handle, pyrethroids such as borates, permethrin and acrinathrine, and pyrethroids such as etofenprox and silafluophene. Preferred compounds are compounds contained in hiba oil such as drugs, hinokitiol and thoppsene, or metal salts or metal complexes thereof, capric acid, turmeric, fipronil, imidacloprid, acetamiprid, etc., and compounds contained in hiba oil such as hinokitiol and tyuopsen More preferred are metal salts or metal complexes, capric acid, turmeric, fipronil, imidacloprid, acetamiprid, hinokitiol or metal salts or metal complexes thereof, fipronil, imi Kuropurido is more preferable.

  The addition amount of the insect repellent and / or preservative is not particularly limited, but is preferably 0.01 to 15 parts by weight, and 0.1 to 10 parts by weight with respect to 100 parts by weight of the resin derived from plant resources. Part is more preferable, and further 0.5 to 5 parts by weight is most preferable.

  In the present invention, it is preferable to further blend (D) a carboxyl group-reactive endblocker. The carboxyl group-reactive end-blocking agent used in the present invention is not particularly limited as long as it is a compound capable of blocking the carboxyl end group of the polymer, and is used as a blocker for the carboxyl end of the polymer. Things can be used. In the present invention, the carboxyl group-reactive endblocker not only blocks the end of a plant resource-derived resin, but also lactic acid produced by thermal decomposition or hydrolysis of a plant resource-derived resin or a natural-derived organic filler. The carboxyl group of acidic low molecular weight compounds such as formic acid can also be blocked. Further, the end-capping agent is more preferably a compound that can also block the hydroxyl end where an acidic low molecular weight compound is generated by thermal decomposition.

  As such a carboxyl group-reactive end-blocking agent, it is preferable to use at least one compound selected from an epoxy compound, an oxazoline compound, an oxazine compound, and a carbodiimide compound, and among them, an epoxy compound and / or a carbodiimide compound are preferable. .

  As an epoxy compound that can be used as a carboxyl group-reactive end-blocking agent in the present invention, a glycidyl ether compound, a glycidyl ester compound, a glycidyl amine compound, a glycidyl imide compound, and an alicyclic epoxy compound can be preferably used. By blending these, a molded product having excellent mechanical properties, moldability, heat resistance and durability can be obtained.

  Examples of glycidyl ether compounds include butyl glycidyl ether, stearyl glycidyl ether, allyl glycidyl ether, phenyl glycidyl ether, o-phenylphenyl glycidyl ether, ethylene oxide lauryl alcohol glycidyl ether, ethylene oxide phenol glycidyl ether, ethylene glycol diglycidyl ether, polyethylene glycol Diglycidyl ether, propylene glycol diglycidyl ether, polypropylene glycol diglycidyl ether, neopentyl glycol diglycidyl ether, polytetramethylene glycol diglycidyl ether, cyclohexanedimethanol diglycidyl ether, glycerol triglycidyl ether, trimethylolpropane trig Bisphenols such as sidyl ether, pentaerythritol polyglycidyl ether, 2,2-bis- (4-hydroxyphenyl) propane, 2,2-bis- (4-hydroxyphenyl) methane, bis (4-hydroxyphenyl) sulfone; Examples thereof include a bisphenol A diglycidyl ether type epoxy resin, a bisphenol F diglycidyl ether type epoxy resin, a bisphenol S diglycidyl ether type epoxy resin obtained from a condensation reaction with epichlorohydrin. Among these, bisphenol A diglycidyl ether type epoxy resin is preferable.

  Examples of glycidyl ester compounds include benzoic acid glycidyl ester, p-toluic acid glycidyl ester, cyclohexanecarboxylic acid glycidyl ester, stearic acid glycidyl ester, lauric acid glycidyl ester, palmitic acid glycidyl ester, versatic acid glycidyl ester, oleic acid glycidyl ester Ester, linoleic acid glycidyl ester, linolenic acid glycidyl ester, terephthalic acid diglycidyl ester, isophthalic acid diglycidyl ester, phthalic acid diglycidyl ester, naphthalene dicarboxylic acid diglycidyl ester, bibenzoic acid diglycidyl ester, methyl terephthalic acid diglycidyl ester , Hexahydrophthalic acid diglycidyl ester, tetrahydrophthalic acid diglycidyl ester, Hexanedicarboxylic acid diglycidyl ester, adipic acid diglycidyl ester, succinic acid diglycidyl ester, sebacic acid diglycidyl ester, dodecanedioic acid diglycidyl ester, octadecanedicarboxylic acid diglycidyl ester, trimellitic acid triglycidyl ester, pyromellitic acid tetra A glycidyl ester etc. can be mentioned. Among these, benzoic acid glycidyl ester and versatic acid glycidyl ester are preferable.

  Examples of glycidylamine compounds include tetraglycidylaminodiphenylmethane, triglycidyl-paraaminophenol, triglycidyl-metaaminophenol, diglycidylaniline, diglycidyltoluidine, tetraglycidylmetaxylenediamine, diglycidyltribromoaniline, tetraglycidylbisamino Examples include methylcyclohexane, triglycidyl cyanurate, and triglycidyl isocyanurate.

  Examples of glycidylimide compounds include N-glycidylphthalimide, N-glycidyl-4-methylphthalimide, N-glycidyl-4,5-dimethylphthalimide, N-glycidyl-3-methylphthalimide, N-glycidyl-3,6- Dimethylphthalimide, N-glycidyl-4-ethoxyphthalimide, N-glycidyl-4-chlorophthalimide, N-glycidyl-4,5-dichlorophthalimide, N-glycidyl-3,4,5,6-tetrabromophthalimide, N -Glycidyl-4-n-butyl-5-bromophthalimide, N-glycidyl succinimide, N-glycidyl hexahydrophthalimide, N-glycidyl-1,2,3,6-tetrahydrophthalimide, N-glycidyl maleimide, N- Glycidyl-α, β-dimethyl Succinimide, N-glycidyl-α-ethylsuccinimide, N-glycidyl-α-propylsuccinimide, N-glycidylbenzamide, N-glycidyl-p-methylbenzamide, N-glycidylnaphthamide, N-glycidylsteramide, etc. be able to. Of these, N-glycidylphthalimide is preferable.

  Examples of alicyclic epoxy compounds include 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexylcarboxylate, bis (3,4-epoxycyclohexylmethyl) adipate, vinylcyclohexene diepoxide, N-methyl-4, 5-epoxycyclohexane-1,2-dicarboxylic imide, N-ethyl-4,5-epoxycyclohexane-1,2-dicarboxylic imide, N-phenyl-4,5-epoxycyclohexane-1,2-dicarboxylic imide N-naphthyl-4,5-epoxycyclohexane-1,2-dicarboxylic imide, N-tolyl-3-methyl-4,5-epoxycyclohexane-1,2-dicarboxylic imide, and the like.

  Further, as other epoxy compounds, epoxy-modified fatty acid glycerides such as epoxidized soybean oil, epoxidized linseed oil, and epoxidized whale oil, phenol novolac type epoxy resins, cresol nozolac type epoxy resins, and the like can be used.

  Examples of the oxazoline compound that can be used as a carboxyl group-reactive end-blocking agent used in the present invention include 2-methoxy-2-oxazoline, 2-ethoxy-2-oxazoline, 2-propoxy-2-oxazoline, 2-butoxy 2-oxazoline, 2-pentyloxy-2-oxazoline, 2-hexyloxy-2-oxazoline, 2-heptyloxy-2-oxazoline, 2-octyloxy-2-oxazoline, 2-nonyloxy-2-oxazoline, 2 -Decyloxy-2-oxazoline, 2-cyclopentyloxy-2-oxazoline, 2-cyclohexyloxy-2-oxazoline, 2-allyloxy-2-oxazoline, 2-methallyloxy-2-oxazoline, 2-crotyloxy-2-oxazoline , 2-pheno Ci-2-oxazoline, 2-cresyl-2-oxazoline, 2-o-ethylphenoxy-2-oxazoline, 2-o-propylphenoxy-2-oxazoline, 2-o-phenylphenoxy-2-oxazoline, 2-m -Ethylphenoxy-2-oxazoline, 2-m-propylphenoxy-2-oxazoline, 2-p-phenylphenoxy-2-oxazoline, 2-methyl-2-oxazoline, 2-ethyl-2-oxazoline, 2-propyl- 2-oxazoline, 2-butyl-2-oxazoline, 2-pentyl-2-oxazoline, 2-hexyl-2-oxazoline, 2-heptyl-2-oxazoline, 2-octyl-2-oxazoline, 2-nonyl-2- Oxazoline, 2-decyl-2-oxazoline, 2-cyclopentyl-2-oxy Zolin, 2-cyclohexyl-2-oxazoline, 2-allyl-2-oxazoline, 2-methallyl-2-oxazoline, 2-crotyl-2-oxazoline, 2-phenyl-2-oxazoline, 2-o-ethylphenyl-2 -Oxazoline, 2-o-propylphenyl-2-oxazoline, 2-o-phenylphenyl-2-oxazoline, 2-m-ethylphenyl-2-oxazoline, 2-m-propylphenyl-2-oxazoline, 2-p -Phenylphenyl-2-oxazoline, 2,2'-bis (2-oxazoline), 2,2'-bis (4-methyl-2-oxazoline), 2,2'-bis (4,4'-dimethyl- 2-oxazoline), 2,2'-bis (4-ethyl-2-oxazoline), 2,2'-bis (4,4'-diethyl-2-oxy) Sazoline), 2,2'-bis (4-propyl-2-oxazoline), 2,2'-bis (4-butyl-2-oxazoline), 2,2'-bis (4-hexyl-2-oxazoline) 2,2'-bis (4-phenyl-2-oxazoline), 2,2'-bis (4-cyclohexyl-2-oxazoline), 2,2'-bis (4-benzyl-2-oxazoline), 2 , 2'-p-phenylenebis (2-oxazoline), 2,2'-m-phenylenebis (2-oxazoline), 2,2'-o-phenylenebis (2-oxazoline), 2,2'-p -Phenylenebis (4-methyl-2-oxazoline), 2,2'-p-phenylenebis (4,4'-dimethyl-2-oxazoline), 2,2'-m-phenylenebis (4-methyl-2) -Oxazoline), 2, 2 -M-phenylenebis (4,4'-dimethyl-2-oxazoline), 2,2'-ethylenebis (2-oxazoline), 2,2'-tetramethylenebis (2-oxazoline), 2,2'- Hexamethylene bis (2-oxazoline), 2,2'-octamethylene bis (2-oxazoline), 2,2'-decamethylene bis (2-oxazoline), 2,2'-ethylenebis (4-methyl-2) -Oxazoline), 2,2'-tetramethylenebis (4,4'-dimethyl-2-oxazoline), 2,2'-9,9'-diphenoxyethanebis (2-oxazoline), 2,2'- Examples include cyclohexylenebis (2-oxazoline), 2,2'-diphenylenebis (2-oxazoline), and the like. Furthermore, the polyoxazoline compound etc. which contain the above-mentioned compound as a monomer unit can be mentioned.

  Examples of oxazine compounds as carboxyl group-reactive endblockers that can be used in the present invention include 2-methoxy-5,6-dihydro-4H-1,3-oxazine, 2-ethoxy-5,6-dihydro. -4H-1,3-oxazine, 2-propoxy-5,6-dihydro-4H-1,3-oxazine, 2-butoxy-5,6-dihydro-4H-1,3-oxazine, 2-pentyloxy- 5,6-dihydro-4H-1,3-oxazine, 2-hexyloxy-5,6-dihydro-4H-1,3-oxazine, 2-heptyloxy-5,6-dihydro-4H-1,3- Oxazine, 2-octyloxy-5,6-dihydro-4H-1,3-oxazine, 2-nonyloxy-5,6-dihydro-4H-1,3-oxazine, 2-decyloxy-5 6-dihydro-4H-1,3-oxazine, 2-cyclopentyloxy-5,6-dihydro-4H-1,3-oxazine, 2-cyclohexyloxy-5,6-dihydro-4H-1,3-oxazine, 2-allyloxy-5,6-dihydro-4H-1,3-oxazine, 2-methallyloxy-5,6-dihydro-4H-1,3-oxazine, 2-crotyloxy-5,6-dihydro-4H- 1,3-oxazine and the like, and further, 2,2′-bis (5,6-dihydro-4H-1,3-oxazine), 2,2′-methylenebis (5,6-dihydro-4H— 1,3-oxazine), 2,2'-ethylenebis (5,6-dihydro-4H-1,3-oxazine), 2,2'-propylenebis (5,6-dihydro-4H-1,3- Oxazi ), 2,2'-butylenebis (5,6-dihydro-4H-1,3-oxazine), 2,2'-hexamethylenebis (5,6-dihydro-4H-1,3-oxazine), 2, 2'-p-phenylenebis (5,6-dihydro-4H-1,3-oxazine), 2,2'-m-phenylenebis (5,6-dihydro-4H-1,3-oxazine), 2, 2'-naphthylene bis (5,6-dihydro-4H-1,3-oxazine), 2,2'-P, P'-diphenylene bis (5,6-dihydro-4H-1,3-oxazine), etc. Can be mentioned. Furthermore, the polyoxazine compound etc. which contain an above-described compound as a monomer unit are mentioned.

  Among the oxazoline compounds and oxazine compounds, 2,2′-m-phenylenebis (2-oxazoline) and 2,2′-p-phenylenebis (2-oxazoline) are preferable.

  The carbodiimide compound that can be used as a carboxyl group-reactive end-blocking agent in the present invention is a compound having at least one carbodiimide group represented by (—N═C═N—) in the molecule. The organic isocyanate can be heated in the presence of a simple catalyst and produced by decarboxylation.

  Examples of carbodiimide compounds include diphenylcarbodiimide, di-cyclohexylcarbodiimide, di-2,6-dimethylphenylcarbodiimide, diisopropylcarbodiimide, dioctyldecylcarbodiimide, di-o-toluylcarbodiimide, di-p-toluylcarbodiimide, di-p- Nitrophenylcarbodiimide, di-p-aminophenylcarbodiimide, di-p-hydroxyphenylcarbodiimide, di-p-chlorophenylcarbodiimide, di-o-chlorophenylcarbodiimide, di-3,4-dichlorophenylcarbodiimide, di-2 , 5-dichlorophenylcarbodiimide, p-phenylene-bis-o-toluylcarbodiimide, p-phenylene-bis-dicyclohexylcarbodiimide, p-phenylene- Su-di-p-chlorophenylcarbodiimide, 2,6,2 ', 6'-tetraisopropyldiphenylcarbodiimide, hexamethylene-bis-cyclohexylcarbodiimide, ethylene-bis-diphenylcarbodiimide, ethylene-bis-dicyclohexylcarbodiimide, N , N′-di-o-triylcarbodiimide, N, N′-diphenylcarbodiimide, N, N′-dioctyldecylcarbodiimide, N, N′-di-2,6-dimethylphenylcarbodiimide, N-triyl-N ′ -Cyclohexylcarbodiimide, N, N'-di-2,6-diisopropylphenylcarbodiimide, N, N'-di-2,6-di-tert-butylphenylcarbodiimide, N-toluyl-N'-phenylcarbodiimide, N, N'-di-p-nitrophenyl Carbodiimide, N, N′-di-p-aminophenylcarbodiimide, N, N′-di-p-hydroxyphenylcarbodiimide, N, N′-di-cyclohexylcarbodiimide, N, N′-di-p-toluylcarbodiimide, N, N'-benzylcarbodiimide, N-octadecyl-N'-phenylcarbodiimide, N-benzyl-N'-phenylcarbodiimide, N-octadecyl-N'-tolylcarbodiimide, N-cyclohexyl-N'-tolylcarbodiimide, N- Phenyl-N'-tolylcarbodiimide, N-benzyl-N'-tolylcarbodiimide, N, N'-di-o-ethylphenylcarbodiimide, N, N'-di-p-ethylphenylcarbodiimide, N, N'-di -O-isopropylphenylcarbodiimide, N, N'-di p-isopropylphenylcarbodiimide, N, N'-di-o-isobutylphenylcarbodiimide, N, N'-di-p-isobutylphenylcarbodiimide, N, N'-di-2,6-diethylphenylcarbodiimide, N, N '-Di-2-ethyl-6-isopropylphenylcarbodiimide, N, N'-di-2-isobutyl-6-isopropylphenylcarbodiimide, N, N'-di-2,4,6-trimethylphenylcarbodiimide, N, Mono- or dicarbodiimide compounds such as N'-di-2,4,6-triisopropylphenylcarbodiimide, N, N'-di-2,4,6-triisobutylphenylcarbodiimide, poly (1,6-hexamethylenecarbodiimide) ), Poly (4,4'-methylenebiscyclohexylcarbodiimide), Poly (1,3-cyclohexylenecarbodiimide), poly (1,4-cyclohexylenecarbodiimide), poly (4,4'-diphenylmethanecarbodiimide), poly (3,3'-dimethyl-4,4'-diphenylmethanecarbodiimide) , Poly (naphthylene carbodiimide), poly (p-phenylene carbodiimide), poly (m-phenylene carbodiimide), poly (tolyl carbodiimide), poly (diisopropylcarbodiimide), poly (methyl-diisopropylphenylene carbodiimide), poly (triethylphenylene carbodiimide) ) And polycarbodiimides such as poly (triisopropylphenylenecarbodiimide). Of these, N, N′-di-2,6-diisopropylphenylcarbodiimide and 2,6,2 ′, 6′-tetraisopropyldiphenylcarbodiimide are preferable.

  As the carboxyl group-reactive end-blocking agent, one or more compounds can be arbitrarily selected and used.

In the resin composition used in the present invention, the carboxyl terminal and the acidic low molecular compound may be appropriately blocked according to the use to be used as the molded product, but the specific carboxyl terminal and acidic low molecular compound are blocked. The acid concentration in the composition is preferably 10 equivalents / 10 ⁶ g or less from the viewpoint of hydrolysis resistance, more preferably 5 equivalents / 10 ⁶ g or less, and more preferably 1 equivalents / 10 ⁶ g or less. It is particularly preferred that The acid concentration in the polymer composition can be measured by dissolving the polymer composition in a suitable solvent and then titrating with an alkali compound solution such as sodium hydroxide having a known concentration, or by NMR.

  The amount of the carboxyl group-reactive end-blocking agent is preferably 0.01 to 10 parts by weight, more preferably 0.05 to 5 parts by weight, when the plant resource-derived resin is 100 parts by weight.

  In the present invention, it is preferable to further add a reaction catalyst of a carboxyl group reactive end-blocking agent. The reaction catalyst referred to here is a compound that has an effect of promoting the reaction between the carboxyl group-reactive end-blocking agent and the carboxyl end of the polymer end or acidic low molecular weight compound. Certain compounds are preferred. Examples of such compounds include alkali metal compounds, alkaline earth metal compounds, tertiary amine compounds, imidazole compounds, quaternary ammonium salts, phosphine compounds, phosphonium salts, phosphate esters, organic acids, Lewis acids. Specific examples thereof include sodium hydroxide, potassium hydroxide, lithium hydroxide, cesium hydroxide, sodium bicarbonate, potassium bicarbonate, sodium carbonate, potassium carbonate, lithium carbonate, sodium acetate, potassium acetate, lithium acetate, stearin Sodium phosphate, potassium stearate, lithium stearate, sodium borohydride, lithium borohydride, sodium phenyl borohydride, sodium benzoate, potassium benzoate, lithium benzoate, disodium hydrogen phosphate, hydrogen phosphate Dipotassium, Alkali metal compounds such as dilithium hydrogen phosphate, disodium salt of bisphenol A, dipotassium salt, dilithium salt, sodium salt of phenol, potassium salt, lithium salt, cesium salt, calcium hydroxide, water Alkaline earth such as barium oxide, magnesium hydroxide, strontium hydroxide, calcium bicarbonate, barium carbonate, magnesium carbonate, strontium carbonate, calcium acetate, barium acetate, magnesium acetate, strontium acetate, calcium stearate, magnesium stearate, strontium stearate Metal compounds, triethylamine, tributylamine, trihexylamine, triamylamine, triethanolamine, dimethylaminoethanol, triethylenediamine, dimethylphenylamine , Dimethylbenzylamine, 2- (dimethylaminomethyl) phenol, dimethylaniline, pyridine, picoline, tertiary amines such as 1,8-diazabicyclo (5,4,0) undecene-7, 2-methylimidazole, 2-ethyl Imidazole, 2-isopropylimidazole, 2-ethyl-4-methylimidazole, imidazole compounds such as 4-phenyl-2-methylimidazole, tetramethylammonium chloride, tetraethylammonium chloride, tetrabutylammonium bromide, trimethylbenzylammonium chloride, triethylbenzyl Quaternary ammonium salts such as ammonium chloride, tripropylbenzylammonium chloride, N-methylpyridinium chloride, trimethylphosphine, Phosphine compounds such as triethylphosphine, tributylphosphine, trioctylphosphine, phosphonium salts such as tetramethylphosphonium bromide, tetrabutylphosphonium bromide, tetraphenylphosphonium bromide, ethyltriphenylphosphonium bromide, triphenylbenzylphosphonium bromide, trimethyl phosphate, triethyl phosphate , Tributyl phosphate, trioctyl phosphate, tributoxyethyl phosphate, triphenyl phosphate, tricresyl phosphate, trixylenyl phosphate, cresyl diphenyl phosphate, octyl diphenyl phosphate, tri (p-hydroxy) phenyl phosphate, tri (p-methoxy ) Phenyl phosphate Phosphoric acid esters, oxalic acid, p-toluenesulfonic acid, dinonylnaphthalenedisulfonic acid, organic acids such as dodecylbenzenesulfonic acid, Lewis acids such as boron trifluoride, aluminum tetrachloride, titanium tetrachloride, tin tetrachloride, etc. These may be used alone or in combination of two or more. Among these, it is preferable to use an alkali metal compound, an alkaline earth metal compound, and a phosphate ester, and particularly an alkali metal or an organic salt of an alkaline earth metal can be preferably used. Particularly preferred compounds are sodium stearate, potassium stearate, calcium stearate, magnesium stearate, sodium benzoate, sodium acetate, potassium acetate, calcium acetate and magnesium acetate. Further, an organic salt of an alkali metal or alkaline earth metal having 6 or more carbon atoms is preferable, and it is preferable to use one or more of sodium stearate, potassium stearate, calcium stearate, magnesium stearate, and sodium benzoate.

  The addition amount of the reaction catalyst is not particularly limited, but is preferably 0.001 to 1 part by weight and more preferably 0.01 to 0.2 part by weight with respect to 100 parts by weight of the plant resource-derived resin. More preferably, 0.02 to 0.1 parts by weight is most preferable.

  In the present invention, it is preferable to further blend (E) a crystallization accelerator. The crystallization accelerator used in the present invention can be selected from a wide variety of compounds, but the crystal nucleating agent that promotes the formation of crystal nuclei of the polymer, or the softening of the polymer to facilitate movement and promote crystal growth. A plasticizer can be preferably used.

  The blending amount of the crystallization accelerator used in the present invention is preferably 0.01 to 30 parts by weight and preferably 0.1 to 20 parts by weight with respect to 100 parts by weight of the plant resource-derived resin. More preferred is 1 to 10 parts by weight.

  The crystal nucleating agent used as the crystallization accelerator in the present invention is not particularly limited, and any of an inorganic crystal nucleating agent and an organic crystal nucleating agent can be used. Specific examples of inorganic crystal nucleating agents include talc, kaolin, montmorillonite, synthetic mica, clay, zeolite, silica, graphite, carbon black, zinc oxide, magnesium oxide, titanium oxide, calcium sulfide, boron nitride, calcium carbonate, sulfuric acid Examples thereof include metal salts of barium, aluminum oxide, neodymium oxide and phenylphosphonate. These inorganic crystal nucleating agents are preferably modified with an organic substance in order to enhance dispersibility in the composition.

  Specific examples of organic crystal nucleating agents include sodium benzoate, potassium benzoate, lithium benzoate, calcium benzoate, magnesium benzoate, barium benzoate, lithium terephthalate, sodium terephthalate, potassium terephthalate, Calcium oxide, sodium laurate, potassium laurate, sodium myristate, potassium myristate, calcium myristate, sodium octacosanoate, calcium octacosanoate, sodium stearate, potassium stearate, lithium stearate, calcium stearate, magnesium stearate, Barium stearate, sodium montanate, calcium montanate, sodium toluate, sodium salicylate, potassium salicylate, salicylic acid , Metal salts of organic carboxylic acids such as aluminum dibenzoate, potassium dibenzoate, lithium dibenzoate, sodium β-naphthalate, sodium cyclohexanecarboxylate, organic sulfonates such as sodium p-toluenesulfonate, sodium sulfoisophthalate, stearic acid Amide, ethylenebislauric acid amide, palmitic acid amide, hydroxystearic acid amide, erucic acid amide, carboxylic acid amides such as trimesic acid tris (t-butylamide), low density polyethylene, high density polyethylene, polypropylene, polyisopropylene, polybutene Polymers such as poly-4-methylpentene, poly-3-methylbutene-1, polyvinylcycloalkane, polyvinyltrialkylsilane, and high melting point polylactic acid, Sodium salt or potassium salt of a polymer having a carboxyl group such as sodium salt of ethylene-acrylic acid or methacrylic acid copolymer, sodium salt of styrene-maleic anhydride copolymer (so-called ionomer), benzylidene sorbitol and its derivatives, sodium-2, Phosphorus compound metal salts such as 2'-methylenebis (4,6-di-t-butylphenyl) phosphate and 2,2-methylbis (4,6-di-t-butylphenyl) sodium can be exemplified. .

  As the crystal nucleating agent used in the present invention, among those exemplified above, at least one selected from talc and an organic carboxylic acid metal salt is particularly preferable. The crystal nucleating agent used in the present invention may be used alone or in combination of two or more.

  The compounding amount of the crystal nucleating agent is preferably 0.01 to 30 parts by weight, more preferably 0.05 to 10 parts by weight with respect to 100 parts by weight of the resin derived from plant resources. .1 to 5 parts by weight is particularly preferable.

Examples of the plasticizer used as the crystallization accelerator in the present invention include glycerin plasticizers, phosphate ester plasticizers, and polyalkylene glycol plasticizers.

  Specific examples of the glycerin plasticizer include glycerin monoacetomonolaurate, glycerin diacetomonolaurate, glycerin monoacetomonostearate, glycerin diacetomonooleate, and glycerin monoacetomonomontanate.

  Specific examples of the phosphate ester plasticizer include tributyl phosphate, tri-2-ethylhexyl phosphate, trioctyl phosphate, triphenyl phosphate, diphenyl-2-ethylhexyl phosphate and tricresyl phosphate. .

Specific examples of the polyalkylene glycol plasticizer include polyethylene glycol, polypropylene glycol, poly (ethylene oxide / propylene oxide) block and / or random copolymer, polytetramethylene glycol, ethylene oxide addition polymer of bisphenols, bisphenols propylene oxide addition polymer, etc. polyalkylene ring recall such as tetrahydrofuran addition polymer of bisphenols can be mentioned.

As the plasticizer used as the crystallization accelerator in the present invention, at least one selected from polyalkylene glycol plasticizers is preferable among those exemplified above. Only one type of plasticizer may be used in the present invention, or two or more types may be used in combination.

The amount of plasticizer as a crystallization accelerator, per 100 parts by weight of the resin derived from plant resources, Ru 0.01 to 5 parts by der.

  In the present invention, each of the crystal nucleating agent and the plasticizer may be used alone, but it is preferable to use both in combination.

  In the present invention, it is preferable to further blend (F) an aliphatic polyester resin and / or an aliphatic aromatic polyester resin other than the plant resource-derived resin.

  The aliphatic polyester resin used in the present invention is not particularly limited, and is a polymer having aliphatic hydroxycarboxylic acid as a main constituent, an aliphatic polyvalent carboxylic acid and an aliphatic polyhydric alcohol as main constituents. And the like. Specifically, polymers having aliphatic hydroxycarboxylic acid as a main component include polyglycolic acid, poly-3-hydroxybutyric acid, poly-4-hydroxybutyric acid, poly-4-hydroxyvaleric acid, poly-3-hydroxyhexanoic acid. Or, polycaprolactone and the like, and examples of the polymer mainly composed of aliphatic polycarboxylic acid and aliphatic polyhydric alcohol include polyethylene adipate, polyethylene succinate, polybutylene adipate or polybutylene succinate. . These aliphatic polyesters can be used alone or in combination of two or more. Among these aliphatic polyesters, polybutylene succinate is preferable.

  The aliphatic aromatic polyester used in the present invention is a polyester comprising an aliphatic dicarboxylic acid component, an aromatic dicarboxylic acid component, and an aliphatic diol component. Examples of the aliphatic dicarboxylic acid component include succinic acid, adipic acid, suberic acid, sebacic acid, and dodecanedioic acid. Examples of the aromatic dicarboxylic acid component include isophthalic acid, terephthalic acid, and 2,6-naphthalenedicarboxylic acid. Examples of the aliphatic diol include ethylene glycol, 1,4-butanediol, 1,3-propanediol, 1,4-cyclohexanedimethanol, and the like. The aromatic dicarboxylic acid component of the aliphatic aromatic polyester used in the present invention is preferably 60 mol% or less, more preferably 50 mol% or less. Two or more types of aliphatic dicarboxylic acid component, aromatic dicarboxylic acid component, or aliphatic diol component can be used. In the present invention, it is preferable to use an aliphatic aromatic polyester resin composed of terephthalic acid, adipic acid, and 1,4-butanediol.

  In the present invention, the blending amount of the aliphatic polyester resin other than the plant resource-derived resin and the aliphatic aromatic polyester resin is not particularly limited, but when the plant resource-derived resin is 100 parts by weight, It is preferably 1 to 200 parts by weight, more preferably 5 to 150 parts by weight, and even more preferably 10 to 100 parts by weight.

  Moreover, in this invention, it is preferable to mix | blend (G) impact resistance improving agent. The impact resistance improver used in the present invention is not particularly limited as long as it can be used for improving the impact resistance of a thermoplastic resin. For example, at least one selected from the following various impact resistance improvers can be used.

  That is, specific examples of the impact modifier include polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-propylene-nonconjugated diene copolymer, ethylene-butene-1 copolymer, various acrylic rubbers, ethylene- Acrylic acid copolymer and its alkali metal salt (so-called ionomer), ethylene-glycidyl (meth) acrylate copolymer, ethylene-alkyl acrylate copolymer (for example, ethylene-ethyl acrylate copolymer, ethylene-acrylic) Acid butyl copolymer), acid-modified ethylene-propylene copolymer, diene rubber (for example, polybutadiene, polyisoprene, polychloroprene), copolymer of diene and vinyl monomer (for example, styrene-butadiene random copolymer, styrene) -Butadiene block Polymer, styrene-butadiene-styrene block copolymer, styrene-isoprene random copolymer, styrene-isoprene block copolymer, styrene-isoprene-styrene block copolymer, polybutadiene grafted with styrene, Butadiene-acrylonitrile copolymer), polyisobutylene, copolymer of isobutylene and butadiene or isoprene, natural rubber, thiocol rubber, polysulfide rubber, polyurethane rubber, polyether rubber, epichlorohydrin rubber, polyester elastomer, polyamide elastomer Etc.

  Furthermore, it is composed of those having various degrees of cross-linking, various micro structures such as those having a cis structure, a trans structure, etc., those having a vinyl group, etc., a core layer and one or more shell layers covering it, A so-called core-shell type multi-layered polymer in which adjacent layers are made of different polymers can also be used.

  The various (co) polymers mentioned in the above specific examples can be used as impact resistance improvers in the present invention, regardless of whether they are random copolymers, block copolymers, graft copolymers or the like. it can.

  Furthermore, in making these (co) polymers, it is also possible to copolymerize monomers such as other olefins, dienes, aromatic vinyl compounds, acrylic acid, acrylic ester and methacrylic ester. is there.

  Among these impact modifiers, a polymer containing an acrylic unit and a polymer containing a unit having an acid anhydride group and / or a glycidyl group are preferable. Preferable examples of the acrylic unit herein include methyl methacrylate units, methyl acrylate units, ethyl acrylate units and butyl acrylate units. Preferred examples of units having an acid anhydride group or glycidyl group May include maleic anhydride units and glycidyl methacrylate units.

  The impact resistance improver is a so-called core-shell type multi-layer polymer composed of a core layer and one or more shell layers covering the core layer, and adjacent layers are composed of different polymers. It is preferable that the polymer is a multilayer structure polymer containing methyl methacrylate units or methyl acrylate units in the shell layer. Such a multilayer structure polymer preferably contains an acrylic unit, or preferably contains a unit having an acid anhydride group and / or a glycidyl group. Preferred examples of the acrylic unit include a methyl methacrylate unit, an acrylic acid A methyl unit, an ethyl acrylate unit, and a butyl acrylate unit can be mentioned, As a suitable example of a unit which has an acid anhydride group and a glycidyl group, a maleic anhydride unit and a glycidyl methacrylate unit can be mentioned. In particular, the shell layer contains at least one selected from methyl methacrylate units, methyl acrylate units, maleic anhydride units and glycidyl methacrylate units, and includes butyl acrylate units, ethyl hexyl acrylate units, styrene units and butadiene units. A multilayer structure containing at least one selected from the above in the core layer is preferably used.

  The glass transition temperature of the impact resistance improver is preferably −20 ° C. or lower, and more preferably −30 ° C. or lower.

  The blending amount of the impact resistance improver is preferably in the range of 1 to 100 parts by weight and more preferably in the range of 2 to 50 parts by weight with respect to 100 parts by weight of the plant resource-derived resin.

  In the present invention, it is preferable to further blend (H) an inorganic filler. As the inorganic filler used in the present invention, fibers, plates, granules, and powders that are usually used for reinforcing thermoplastic resins can be used. Specifically, glass fiber, asbestos fiber, carbon fiber, graphite fiber, metal fiber, potassium titanate whisker, aluminum borate whisker, magnesium-based whisker, silicon-based whisker, wollastonite, sepiolite, asbestos, slag fiber, zonolite, Elastadite, gypsum fiber, silica fiber, silica-alumina fiber, zirconia fiber, boron nitride fiber, silicon nitride fiber and boron fiber and other inorganic fillers, glass flakes, non-swellable mica, swellable mica, graphite, metal foil , Ceramic beads, talc, clay, mica, sericite, zeolite, bentonite, organic modified bentonite, organic modified montmorillonite, dolomite, kaolin, fine powdered silicic acid, feldspar powder, potassium titanate, shirasu balloon, calcium carbonate , Magnesium carbonate, barium sulfate, calcium oxide, aluminum oxide, titanium oxide, aluminum silicate, silicon oxide, gypsum, novaculite, include plate-like or granular inorganic fillers such as dawsonite and white clay. Among these inorganic fillers, glass fiber, wollastonite, mica and kaolin are particularly preferable. The aspect ratio of the fibrous filler is preferably 5 or more, more preferably 10 or more, and further preferably 20 or more.

  The inorganic filler may be coated or focused with a thermoplastic resin such as an ethylene / vinyl acetate copolymer or a thermosetting resin such as an epoxy resin, or a coupling agent such as aminosilane or epoxysilane. May be processed.

  Moreover, 1-100 weight part is preferable with respect to 100 weight part of resin derived from a plant resource, and, as for the compounding quantity of an inorganic filler, 5-50 weight part is more preferable.

  The wood substitute material of the present invention is preferably a foam from the viewpoint of reducing the weight. As a method for obtaining a foam, there are a physical foaming method and a chemical foaming method.

  In the case of the physical foaming method, a foaming agent called an evaporative foaming agent or a volatile foaming agent is used, and foaming is performed by utilizing a physical change such as the release of compressed gas or vaporization of a volatile gas.

  In the present invention, the volatile foaming agent is not particularly limited, and known ones can be used. For example, aliphatic hydrocarbons, chlorinated aliphatic hydrocarbons, fluorinated aliphatic hydrocarbons, water , Air, inert gas, and the like.

  In the case of the chemical foaming method, a foaming agent called a decomposable foaming agent is used, and foaming is performed using a gas generated by chemical decomposition.

  In the present invention, as the decomposable foaming agent, known ones can be used. For example, inorganic foaming agents such as sodium hydrogen carbonate, azo-based, nitroso-based, hydrazide-based, triazine-based, etc. Bisformaldehyde, azobisisobutyronitrile, azodicarbonamide, N, N′-dinitrosopentamethylenetetramine, p, p′-oxybis (benzenesulfonyl hydrazide), p-toluenesulfonyl hydrazide, p-toluenesulfonyl semicarbazide, tri Organic foaming agents such as hydrazotriazine can be mentioned. These may be used alone or in combination of two or more.

  Among the foaming agents, volatile foaming agents and organic foaming agents are preferable, water, an inert gas, and an azo foaming agent are more preferable, and an inert gas is most preferable.

  The amount of the foaming agent added is preferably 0.01 to 30 parts by weight, more preferably 0.1 to 20 parts by weight, with respect to 100 parts by weight of the plant resource-derived resin. It is particularly preferably 10 to 10 parts by weight.

  The expansion ratio of the foam is not particularly limited, and may be appropriately selected depending on the application.

  In the present invention, one or more flame retardants can be blended. Specific examples of the flame retardant include halogen compounds containing bromine or chlorine, antimony compounds such as antimony trioxide, inorganic hydrates and phosphorus compounds, silicone compounds, nitrogen compounds, and the like.

  In the present invention, conventional additives such as ultraviolet absorbers (benzophenone compounds, benzotriazole compounds, aromatic benzoate compounds, oxalic acid anilide compounds, cyanoacrylate compounds, and the like, as long as the object of the present invention is not impaired. Hindered amine compounds), heat stabilizers (hindered phenol compounds, phosphite compounds, thioether compounds), lubricants, mold release agents, colorants including dyes and pigments, and the like. be able to.

  The resin composition used in the present invention is not limited to the purpose of the present invention, and other thermoplastic resins such as acrylic resin, polyamide resin, aromatic polyester resin, polyacetal resin, polyphenylene sulfide resin, polyether ether ketone resin , Polysulfone resin, polyphenylene oxide resin, polyimide resin, polyetherimide resin, etc.), thermosetting resin (eg, phenol resin, melamine resin, other polyester resin, silicone resin, etc.).

  In the present invention, the production method of the resin composition is not particularly limited, but after pre-blending a plant-derived resin, a naturally-derived organic filler, and other additives as necessary, the plant resource Above the melting point of the derived resin, a method of supplying to a hopper of a twin-screw extruder or Banbury mixer and uniformly melting and kneading, a method of directly kneading with a molding machine, or the like is preferably used. Moreover, when using a fine powder, the method of supplying to a hopper independently from another additive, the method of adding after compressing a fine powder, etc. are preferable.

  In the present invention, when the plant resource-derived resin is a polylactic acid resin, it is preferable that the crystallization temperature (Tcc) at the time of temperature rise derived from the polylactic acid resin in the wood substitute material is not observed. When Tcc is observed, the crystallization enthalpy (ΔHcc) is preferably 10 J / g or less, more preferably 5 J / g or less, and even more preferably 1 J / g or less. Here, Tcc and ΔHcc are a crystallization temperature and a crystallization enthalpy derived from a polylactic acid resin obtained by measuring a molded product with a differential scanning calorimeter (DSC) at a temperature rising rate of 20 ° C./min.

  In the present invention, when the plant resource-derived resin is a polylactic acid resin, it is preferable that the crystallization temperature (Tc) at the time of temperature decrease derived from the polylactic acid resin can be observed. Here, Tc is a crystallization temperature at the time of temperature decrease derived from a polylactic acid resin measured at a temperature decrease rate of 20 ° C./min after the temperature was increased to 200 ° C. by a differential scanning calorimeter (DSC). Tc is not particularly limited, but is preferably 100 ° C. or higher, more preferably 105 ° C. or higher, and further preferably 110 ° C. or higher from the viewpoint of moldability.

  In the present invention, when the resin derived from plant resources is a polylactic acid resin, the relative crystallization obtained from the crystal melting enthalpy (ΔHm) derived from the polylactic acid resin and the crystallization enthalpy (ΔHcc) at the time of temperature rise The degree [{(ΔHm−ΔHcc) / ΔHm} × 100] is preferably 70% or more, more preferably 90% or more, further preferably 93% or more, and 96% or more. Particularly preferred is 100%. Here, ΔHcc is the crystallization enthalpy derived from polylactic acid resin measured by DSC at a temperature rising rate of 20 ° C./min, and ΔHm is derived from polylactic acid resin measured by DSC at a temperature rising rate of 20 ° C./min. In the first measurement (1stRUN), the temperature was increased from 30 ° C. to 200 ° C. at a temperature increase rate of 20 ° C./min, and then cooled to 30 ° C. at a temperature decrease rate of 20 ° C./min. When the temperature is increased from 30 ° C. to 200 ° C. at a temperature increase rate of 20 ° C./min in the second measurement (2nd RUN), the crystal melting enthalpy measured at 2 nd RUN is preferable.

  A wood substitute material having such crystallization characteristics can be achieved by using a naturally-derived organic filler having the above-mentioned preferred embodiment.

  The wood substitute material of the present invention can be obtained by any known method such as injection molding, extrusion molding, press molding, blow molding, foam molding, and sheet molding.

  The wood substitute material of the present invention has various shapes such as board shape, sheet shape, film shape, plate shape, box shape, block shape, tube shape, fiber shape, etc., ordinary plywood, concrete formwork plywood, structural plywood Any wood material such as various types of plywood such as plywood for pallets, various types of wooden boards such as medium-quality fiberboard and particle board, veneer, laminated lumber, square lumber, and round lumber can be substituted. When the wood substitute material of the present invention is used as a substitute material for plywood, wood board, and laminated wood, it is more preferable in that generation of formaldehyde can be suppressed because an adhesive using formaldehyde as a raw material is not used. Here, the amount of formaldehyde emitted can be evaluated according to the standard defined by JIS or JAS, and the formaldehyde concentration in water in a test called the desiccator method is preferably 1.5 mg / L or less, more preferably 0.5 mg / L or less. Preferably, 0.3 mg / L or less is more preferable.

  The thickness of the wood substitute material of the present invention is not particularly limited. However, when the material is a board, it is preferably 0.5 mm or more, more preferably 1 mm or more, further preferably 3 mm or more, and 5 mm or more. Is particularly preferred. The upper limit is not particularly limited.

The apparent density of the wood substitute material of the present invention is not particularly limited, but is preferably in the range of 0.1 to 1.8 g / cm ³ from the viewpoint of weight reduction, and is preferably 0.2 to 1 More preferably, it is in the range of 5 g / cm ³ . Here, the apparent density can be determined from the weight of the material (g) / the volume of the material (cm ³ ).

As the wood substitute material of the present invention, the bending strength is not particularly limited, but it is preferably 20 MPa or more, more preferably 30 MPa or more, and 40 MPa or more from the viewpoint that it can be used for various applications. It is more preferable that the pressure is 50 MPa or more. The upper limit is not particularly limited. Here, the bending strength can be obtained from the following equation. The following formula is defined in ASTM method D790, but the following formula is also used when the wood substitute material of the present invention has a size and shape other than the test piece defined in ASTM method D790. To determine the bending strength.
Bending strength (MPa) = 3PL / 2Wt ²
P: Maximum bending load (N)
L: Distance between fulcrums (mm)
W: Specimen width (mm)
t: Test piece thickness (mm)

  In order to obtain a material having such a bending strength, the above-mentioned preferable natural organic filler, that is, a material having a specific ash content, a specific elemental composition, or a fine particle having a specific particle size is selected. It is preferable to use it.

In the present invention, the bending strength when wet is not particularly limited, but it is preferably 10 MPa or more, and preferably 20 MPa or more, from the viewpoint of excellent water resistance and use in various applications. Is more preferable, and it is further more preferable that it is 30 MPa or more. The upper limit is not particularly limited. The bending strength when wet in the present invention is determined by immersing a molded product obtained by injection molding at a mold temperature of 85 ° C. into a length of 200 mm and a width of 50 mm and then immersing it in warm water at 70 ° C. for 2 hours. Further, the bending strength was measured at a distance between fulcrums of 150 mm and a load speed of 10 mm / min in a wet state after being immersed in room temperature water for 1 hour.

  The material having the preferable bending strength when wet can be obtained by blending a preferable additive such as a preferable carboxyl group-reactive end-blocking agent and a preferable crystallization accelerator.

In the present invention, the water absorption thickness expansion coefficient is not particularly limited, but it is preferably 3% or less, preferably 1% or less from the viewpoint of excellent water resistance and use in various applications. Is more preferably 0.5% or less, and most preferably 0.3% or less. The lower limit is not particularly limited. The water absorption thickness expansion coefficient in the present invention is a value measured according to JIS A5905 after cutting a molded product obtained by injection molding under the condition of a mold temperature of 85 ° C. into a length of 50 mm and a width of 50 mm. is there.

  The material having the preferable water absorption thickness expansion coefficient can be obtained by blending a preferable additive such as a preferable carboxyl group-reactive end-blocking agent and a preferable crystallization accelerator.

In the present invention, the moisture content is not particularly limited, but it is preferably 5% or less, more preferably 3% or less from the viewpoint of excellent water resistance and use in various applications. It is more preferably 1% or less, and most preferably 0.5% or less. The lower limit is not particularly limited. The water content in the present invention is a value measured in accordance with JIS A5905 after a molded product obtained by injection molding under the condition of a mold temperature of 85 ° C. is cut into a length of 100 mm and a width of 100 mm .

    The material having the preferable water content can be obtained by blending a preferable additive such as a preferable carboxyl group-reactive end-blocking agent and a preferable crystallization accelerator.

  The wood substitute material of the present invention may require long-term durability depending on the use environment. From the viewpoint of maintaining long-term durability in a wet environment, the temperature is 60 ° C. and the relative humidity is 95%. The bending strength retention after the treatment for 300 hours is preferably 20% or more, more preferably 30% or more, further preferably 40% or more, and most preferably 50% or more. . Here, the bending strength retention rate can be determined from (bending strength after processing / bending strength before processing) × 100. In order to obtain a material having such durability, it is preferable to add a carboxyl group reactive end-blocking agent.

  The wood substitute material of the present invention is not particularly limited for insect repellent, ant repellency, and antiseptic properties, but in each performance evaluation test, the weight reduction rate is preferably 15% or less, It is more preferably 10% or less, further preferably 5% or less, and most preferably 2% or less. Insect repellent, ant repellent, and antiseptic can be evaluated according to Japanese Wood Preservation Association (JWPA) Nos. 11, 8, and 1 standards, respectively. Weight after treatment / weight before treatment) × 100. In order to obtain a material having such insect repellent properties, ant repellent properties, and antiseptic properties, it is preferable to add an insect repellent and / or a preservative. In addition, among the insect repellents, those having ant repellent properties are also called ant repellents.

  As the wood substitute material of the present invention, the pencil hardness is not particularly limited, but in the evaluation according to JIS K4501, the pencil hardness is preferably B or more, more preferably HB or more, and H More preferably, it is the above. In order to obtain a material having such pencil hardness, the above-mentioned preferred natural organic filler, that is, a specific ash content, a specific elemental composition, or a material to which specific fine particles are attached should be selected and used. Is preferred.

  The wood substitute material of the present invention is also called synthetic wood or artificial wood, and any wood can be substituted as long as it is called wood regardless of the shape or material, and nailability Since the machinability such as machinability is equivalent to that of wood, and in a preferred embodiment, it has a performance superior to that of wood in terms of strength and water resistance, so wood members and parts used in various applications It is a useful member / part that can be substituted. The wood substitute material of the present invention includes, for example, civil engineering materials such as concrete molds, scaffolding boards, sheet piles, piles, pillars, foundations, beams, baseboards, flooring materials, ceiling materials, shojis, fences, window frames, doors, decks. Building materials such as wood, furniture materials such as chests, desks, chairs, various shelves, transportation and packing materials such as pallets, containers, wooden boxes and barrels, pachinko parts such as pachinko machine gauge panels and frame materials, mahjong table, billiards As an alternative material for various wood uses such as materials for gaming machines such as tables, sports materials, flooring materials, outer panels, interior materials, etc., agricultural materials, sleepers, musical instruments, tableware, kotatsu plates, firewood, etc. It can be used suitably. Among them, from the viewpoint of protecting the natural environment, it is more preferable to use as a substitute material for civil engineering materials, construction materials, joinery, furniture, transportation / packaging materials, game machine materials, etc. More preferably, it is used for pachinko parts such as window frames, pallets, pachinko machine gauge panels and frame materials, musical instruments, and the like. In particular, for pachinko machines, the number of scrapped boards generated due to model changes is enormous, about 2 million a year, and wood such as gauge boards and frame materials are used for wooden boards or incinerated. Although it is not reused as the same material, and illegal dumping of its abandonment has become a social problem, the wood substitute material of the present invention is a pachinko machine gauge board from the viewpoint of high environmental protection and recyclability And can be used more suitably as an alternative material for pachinko parts such as frame materials.

  The wood substitute material of the present invention is also useful as a composite molded body having a complicated shape that is difficult to process with wood.

  Hereinafter, the present invention will be described in more detail by way of examples. All the parts in the examples are based on weight.

[Example 1-6, Comparative Example 1 to 14
Various materials such as plant resource-derived resins shown in Table 1 are mixed in the proportions shown in Table 1, and melt-kneaded using a 30 mm diameter twin screw extruder at a cylinder temperature of 180 ° C. to obtain a resin composition I got a thing.

In addition, the code | symbol in Table 1 shows the following content.
(A) Resin derived from plant resources (A-1) Polylactic acid (D-form 1.2%, PMMA equivalent weight average molecular weight 170,000)
(A-2) Polyhydroxy (butyrate / valerate) (Biopol manufactured by Monsanto)
(B) Naturally derived organic filler (B-1) Waste paper powder obtained by pulverizing paperboard having a thickness of 2 mm (B-2) Waste paper powder obtained by defibrating newsprint (B-3) Wood flour (Lignocell Plignocell P- SUPER)
(B-4) Kenaf fiber having a fiber length of 1 to 10 mm (B-5) Hemp pellet having a length of 50 mm or less and a diameter of 5 mm (C) Insecticide (C-1) Imidacloprid (manufactured by Wako Pure Chemical Industries, Ltd.)
(D) Carboxyl terminal reactive terminal blocker (D-1) Carbodiimide compound (Nisshinbo Carbodilite HMV-8CA)
(D-2) 2,2′-m-phenylenebis (2-oxazoline) (manufactured by Takeda Pharmaceutical)
(D-3) Diglycidyl terephthalate (Denacol EX-711 manufactured by Nagase Kasei)
(E) Crystallization accelerator (E-1) Talc (Hitron made by Takehara Chemical)
(E-2) Polyethylene glycol (PEG 4000 manufactured by Sanyo Chemical)
(F) Aliphatic polyester resin and / or aliphatic aromatic polyester other than plant resource-derived resin (F-1) Polybutylene (terephthalate / adipate) (BASF Ecoflex)
(G) Impact resistance improver (G-1) Core shell rubber (Metbrene S2001 manufactured by Mitsubishi Rayon)
(H) Inorganic filler (H-1) Mica (A-11 manufactured by Yamaguchi Mica Industry)

  By performing injection molding of the obtained resin composition at a cylinder temperature of 180 ° C. and a mold temperature of 90 ° C., an ASTM test piece having a thickness of 3 mm, or a test piece having a thickness of 6 mm, a length of 100 mm, and a width of 100 mm is obtained. It was. Using the obtained specimen having a thickness of 3 mm, a bending test was conducted according to ASTM method D790, and an Izod impact test was conducted according to ASTM method D256.

Using a test piece having a thickness of 6 mm, a length of 100 mm, and a width of 100 mm obtained by the injection molding, a nail having a thickness of 1 mm is driven into a central portion with a hammer, and the nailability is classified into three stages according to the following standards. It was evaluated with.
A: A nail can be hit without any problem.
○: Nails can be struck, but slight streaks occur on the surface.
X: The molded product is broken and the nail cannot be hit.

Moreover, the nail retention was evaluated in three stages according to the following criteria by manually pulling out the nail struck in the nail driving test.
A: The nail cannot be pulled out by hand.
○: The nail can be pulled out by pulling it with hand.
X: The nail can be easily pulled out by hand.

Using the test piece of length 100mm, width 100mm, thickness 6mm obtained by the said injection molding, the center part was cut | disconnected with the woodworking hand saw, and sawing property was evaluated in three steps according to the following reference | standard.
A: Sawing can be performed without problems.
○: Sawing is possible, but slight streaks occur on the surface layer.
X: The molded product is cracked and cannot be sawed.

Using a test piece having a length of 100 mm, a width of 100 mm, and a thickness of 6 mm obtained by the injection molding, the center portion was punched with a drilling machine, and the punchability was evaluated in three stages according to the following criteria.
A: Holes can be drilled without problems.
○: Holes can be formed, but slight streaks are generated on the surface layer.
X: The molded product is broken and cannot be punched.

After leaving a test piece of 100 mm in length, 100 mm in width and 6 mm in thickness obtained by the above injection molding in a hot air dryer at 140 ° C. for 1 hour, the presence or absence of deformation such as warpage or shrinkage is visually observed according to the following criteria. Evaluation was made in two stages.
○: No deformation ×: Deformation

  Moreover, injection molding was performed under the conditions of a mold temperature of 85 ° C. to obtain a molded product having a thickness of 20 mm, a length of 200 mm, and a width of 100 mm. After the molded product was cut into a length of 50 mm and a width of 50 mm, the water absorption thickness expansion coefficient was measured according to JIS A5905.

  These results are also shown in Table 1.

  From the results shown in Table 1, it can be seen that the wood substitute material of the present invention is excellent in bending strength, rigidity, workability such as nailing required for wood, machinability, durability and heat resistance. In addition, by adding a carboxyl group reactive end-blocking agent and / or a crystallization accelerator, not only the Izod impact value is improved and the impact resistance is excellent, but also the water absorption thickness expansion coefficient is 1% or less, Since the dimensional change at the time of water absorption is small and the water resistance is excellent, it can be seen that the material can be used satisfactorily even under conditions such as outdoors. Furthermore, it can be seen that by adding an aliphatic polyester and / or an aliphatic aromatic polyester, an impact resistance improver, and an inorganic filler, the impact resistance is further improved and the nailing property and the nail retention property are particularly excellent.

  Moreover, about the used paper powder (B-1 and B-2) used in the Example, it processed at 450 degreeC for 12 hours with the electric furnace, and calculated | required the ash content. Furthermore, the obtained ash was analyzed using a fluorescent X-ray apparatus. The analysis results are shown in Table 2.

  From the results shown in Tables 1 and 2, bending strength and rigidity can be obtained by using paper powder containing aluminum, silicon, calcium, sulfur, and magnesium, and the aluminum content being twice or more than the magnesium content. It turns out that it is excellent.

[Example 7 ]
The formulation of Example 2 shown in Table 1 was extruded using a 30 mm diameter twin screw extruder under conditions of a temperature of 180 ° C. and a forming die temperature of 185 ° C. to obtain a board having a thickness of 1.5 mm. A board having a thickness of 1.5 mm was cut out to the size of a pachinko machine gauge board and 13 sheets were stacked, and the board was pressed by a hot press machine at a temperature of 170 ° C. and a pressure of 3 MPa for 15 minutes to obtain a 19 mm thick board. . In addition, even if this board was left to stand in a hot air dryer at 140 ° C. for 1 hour, there was no deformation such as warpage or shrinkage. After nailing on the obtained board, pachinko parts such as frame material, glass, and handle were attached to make a pachinko machine and continued to hit the ball for 1 hour, but there was no problem such as the nail coming off, The nail seismic resistance was also good. Moreover, after removing parts and nails from the used gauge board, they were pulverized and regenerated to a gauge board, and they could be used without any problems.

[Examples 8 to 21, Comparative Examples 15 to 18 ]
Various materials were mixed in the proportions shown in Table 4, and melt kneading was performed using a 50 mm diameter twin screw extruder at a cylinder temperature of 180 ° C. to obtain a resin composition. The obtained resin composition was injection-molded under conditions of a cylinder temperature of 180 ° C. and a mold temperature of 85 ° C. to obtain a molded product having a thickness of 20 mm, a length of 200 mm, and a width of 100 mm.

  The obtained molded product was evaluated according to the same criteria as in Examples 1 to 15 with respect to nailing property, nail retention property, sawing property, and piercing property.

  After the molded product was cut into a length of 200 mm and a width of 50 mm, the bending strength was measured at a distance between supporting points of 150 mm and a load speed of 10 mm / min. Also, the cut specimen is immersed in warm water at 70 ° C. for 2 hours and further immersed in normal temperature water for 1 hour, and then wet when bent at a distance between fulcrums of 150 mm and a load speed of 10 mm / min. The strength was measured.

  After the molded product was cut into a length of 50 mm and a width of 50 mm, the water absorption thickness expansion coefficient was measured according to JIS A5905. Further, after the molded product was cut into a length of 100 mm and a width of 100 mm, the water content was measured according to JIS A5905.

After the molded product was cut into a length of 150 mm and a width of 50 mm, formaldehyde emission was measured according to JIS A1460 and evaluated according to the following criteria.
A: 0.3 mg / L or less B: 0.5 mg / L or less X: More than 0.5 mg / L

  These results are shown in Table 4.

[Comparative Examples 19 to 23 ]
MDF, particle board, and plywood having a thickness of 12 to 18 mm are processed in the same manner as in Examples 8 to 21 , with nailing, nail retention, sawing, drilling, bending strength, wet bending strength, water absorption thickness The expansion rate, moisture content, and formaldehyde emission were measured.

  These results are shown in Table 4.

  From the results shown in Table 4, the wood substitute material of the present invention has processability, shows a bending strength greater than 20 MPa, and has sufficient performance as a wood board. In addition, the wood substitute material of the present invention contains a carboxyl group-reactive end-blocking agent and / or a crystallization accelerator so that the wet bending strength is greater than 10 MPa, the water absorption thickness expansion coefficient is 1% or less, Since the rate is 1% or less, it has sufficient strength even if it absorbs water, the dimensional change at the time of water absorption is small, and its water resistance is much better than wood board or plywood. It can be seen that the material can be used sufficiently.

    Furthermore, it can be seen that blending an aliphatic polyester and / or an aliphatic aromatic polyester, an impact resistance improver, and an inorganic filler is particularly excellent in nailing performance and nail retention.

    Moreover, it turns out that the wood substitute material of this invention is a material with much less formaldehyde emission amount.

Claims (11)

At least one crystal selected from 1 to 350 parts by weight of a naturally-derived organic filler, a glycerin plasticizer, a phosphate ester plasticizer and a polyalkylene glycol plasticizer with respect to 100 parts by weight of a plant resource-derived resin. A wood substitute material which is a wood substitute material formed by molding a resin composition comprising 0.01 to 5 parts by weight of a chemical accelerator, and has a water absorption thickness expansion coefficient of 1% or less. The wood substitute material according to claim 1, wherein the resin composition comprises a carboxyl group-reactive end-blocking agent. The wood substitute material according to claim 1 or 2, wherein the ash content of the organic filler of natural origin is 5 wt% or more and 30 wt% or less. Any one of Claims 1-3 which mix | blend at least 1 sort (s) chosen from aliphatic polyester resin other than resin derived from plant resources, and / or an aliphatic aromatic polyester resin, an impact modifier, and an inorganic filler. The wood substitute material described in crab. The resin derived from plant resources is a polylactic acid resin, and the crystallization temperature (Tc) at the time of temperature decrease derived from the polylactic acid resin in the wood substitute material measured at 200 ° C./min from a temperature difference from 200 ° C. by a differential scanning calorimeter is It is 100 degreeC or more, The wood substitute material in any one of Claims 1-4. The wood substitute material according to any one of claims 1 to 5, wherein 50% by weight or more of the organic filler of natural origin is waste paper powder. The wood substitute material according to any one of claims 1 to 6, wherein the naturally-derived organic filler is paper powder containing aluminum, silicon, calcium, and sulfur. The wood substitute material according to any one of claims 1 to 7, satisfying at least one condition selected from a bending strength when wet of 20 MPa or more and a moisture content of 1% or less. The wood substitute material according to any one of claims 1 to 8, wherein the wood substitute material is any one of a civil engineering material, a building material, a furniture member, and a pachinko part material. At least one crystal selected from 1 to 350 parts by weight of a naturally-derived organic filler, a glycerin plasticizer, a phosphate ester plasticizer and a polyalkylene glycol plasticizer with respect to 100 parts by weight of a plant resource-derived resin. A material for pachinko parts formed by blending 0.01 to 5 parts by weight of a chemical accelerator. The material for pachinko parts according to claim 10, wherein the resin derived from plant resources is a polylactic acid resin.