JP2018119048A - Resin composition containing biomass powder and having high impact resistance - Google Patents
Resin composition containing biomass powder and having high impact resistance Download PDFInfo
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木粉等に代表されるバイオマス粉を含有する高耐衝撃性の樹脂組成物に関する。 The present invention relates to a high impact resistance resin composition containing biomass powder represented by wood powder and the like.
地球の温暖化を防止するための対策として、大気中のCO2の削減が求められており、その対策の一つに、大気中のCO2を吸収して成長するバイオマス素材の活用が提案されている。具体的には、その一形態として、バイオマス素材を粉砕して粉体とし、プラスチックスと複合化（混ぜ合わせる）する技術が提案され、実用化されているが、従来のバイオマス複合材料に使用されるバイオマス粉は粒子も粗く（平均粒子径が大きい）、その結果、プラスチックーバイオマス複合材料から得られる成形品の外観が劣るだけでなく、成形品の耐衝撃強度が低いので、その用途は日用雑貨品等に限られ、工業用材料としては使用が困難な状況であった。 As measures to prevent global warming, the reduction of atmospheric CO2 is required, and as one of the measures, the use of biomass materials that absorb and grow CO2 in the atmosphere is proposed. . Specifically, as one form, a technology that pulverizes biomass material into powder and combines (mixes) it with plastics has been proposed and put into practical use, but it is used in conventional biomass composite materials. The resulting biomass powder is coarse (average particle size is large), and as a result, not only the appearance of the molded product obtained from the plastic-biomass composite material is inferior, but also the impact strength of the molded product is low. It was limited to household goods and was difficult to use as industrial materials.
ところで、大気中のCO2削減の対策としては、大気中への炭酸ガスの放出量の削減とともに大気中に放出済みの炭酸ガスを吸収する森林の育成が重要である。育成された森林が大気中の炭酸ガスを吸収し続けるためには、当該森林を持続的に保全するための木々の間伐や植林が必要となる。間伐すれば、間伐材が生じ、この間伐材を山地に放置することなく、有価物に変えて有効に利用することも森林の持続的な保全には欠かせない。 By the way, as measures for reducing CO2 in the atmosphere, it is important to nurture a forest that absorbs carbon dioxide that has been released into the atmosphere while reducing the amount of carbon dioxide released into the atmosphere. In order for the cultivated forest to continue to absorb carbon dioxide in the atmosphere, it is necessary to thin trees and plant trees in order to sustainably preserve the forest. Thinning produces thinned wood, and it is indispensable for sustainable conservation of forests to use this thinned wood effectively instead of leaving it in the mountains.
間伐材の用途としては種々考えられるが、その一つとして、間伐材を粉砕して木粉とした後、当該木粉を用いるWPC（wood plastic composite）が提案されているが、上記理由により、工業材料として使用する事は困難であった。 There are various possible uses of thinned wood, but as one of them, WPC (wood plastic composite) using the wood flour after pulverizing the thinned wood into wood flour has been proposed. It was difficult to use as an industrial material.
工業材料としてのWPCに必要な耐衝撃強度を向上させる方法としてエラストマー（ゴム）を当該WPCに添加する事が容易に考えられるが、この場合WPCの特徴の一つである高弾性率が大きく低下するばかりか、エラストマー添加で期待される耐衝撃強度の向上も小さく、WPCを有効な技術とするには、未だ改良の余地が残っている。 Elastomer (rubber) can be easily added to the WPC as a method of improving the impact resistance required for WPC as an industrial material, but in this case, the high elastic modulus, one of the characteristics of WPC, is greatly reduced. In addition, the improvement in impact strength expected with the addition of elastomer is small, and there is still room for improvement in order to make WPC an effective technology.
特開2013-129072号公報では、熱可塑性樹脂に繊維状の木粉を用いる事を提案しているが、WPCの変形抑制を目的とするもので、外観や衝撃強度は満足できるものでは無い。また特開2016-138214号公報では、人工木材として熱可塑性樹脂と木粉と相溶化剤との組合せが提示されているが、人工木材の耐水性を向上させるものの、WPCの衝撃強度の向上は期待できない。 Japanese Patent Laid-Open No. 2013-129072 proposes to use fibrous wood flour for the thermoplastic resin, but it is intended to suppress deformation of WPC, and the appearance and impact strength are not satisfactory. JP-A-2016-138214 discloses a combination of a thermoplastic resin, wood powder, and a compatibilizer as artificial wood, which improves the water resistance of artificial wood, but improves the impact strength of WPC. I can't expect it.
一方、特開平9-141656号公報に、廃棄ポリエステル繊維と熱可塑性樹脂と木粉との組合せが提案されている。しかし、特開平9-141656号公報に開示された発明の目的は、廃棄ポリエステル繊維の骨材としての有効利用にあり、そのため組成物中に占める廃棄ポリエステル繊維の割合が非常に多いことが必要で、木粉を中心としたWPCの耐衝撃性を少量の有機繊維の添加で向上させる本発明とは大きく異なっている。 On the other hand, JP-A-9-141656 proposes a combination of waste polyester fiber, thermoplastic resin and wood flour. However, the purpose of the invention disclosed in JP-A-9-141656 is to effectively use the waste polyester fiber as an aggregate, and therefore it is necessary that the proportion of the waste polyester fiber in the composition is very large. This is very different from the present invention in which the impact resistance of WPC, mainly wood powder, is improved by adding a small amount of organic fiber.
また特開平9-141656号公報で示されている有機繊維の直径は骨材として活用するため太く、特開平9-141656号公報記載の組成物では耐衝撃性は低いままである。 In addition, the diameter of the organic fiber disclosed in JP-A-9-141656 is thick for use as an aggregate, and the impact resistance of the composition described in JP-A-9-141656 remains low.
そこで、本発明者等は、木粉で代表されるバイオマス粉を含有する樹脂組成物成形品の外観及び耐衝撃強度の改善を達成すべく、鋭意検討した結果、バイオマス粉（木粉等）を微粒化し、且つ少量の特定の繊維径を有する有機繊維と組み合わせる事で、成形品の外観が良好で且つ弾性率を低下させず、耐衝撃強度を大幅に向上させる事が出来る事を見出し、本発明に至った。 Therefore, the present inventors have conducted extensive studies to achieve an improvement in the appearance and impact strength of a resin composition molded article containing biomass powder represented by wood powder. As a result, biomass powder (wood powder, etc.) It has been found that by combining with finely pulverized organic fibers having a specific fiber diameter, the appearance of the molded product is good and the impact strength can be greatly improved without reducing the elastic modulus. Invented.
即ち、本発明は以下の如くである。 That is, the present invention is as follows.
１）熱可塑性樹脂10〜94wt%、バイオマス粉5〜70wt%および有機繊維1〜20wt%を含有する高耐衝撃性樹脂組成物。 1) A high impact-resistant resin composition containing 10 to 94 wt% of a thermoplastic resin, 5 to 70 wt% of biomass powder, and 1 to 20 wt% of organic fibers.
２）熱可塑性樹脂がポリオレフィン系樹脂、ポリスチレン樹脂、アクリロニトリルーブタジエンースチレン樹脂、ポリ塩化ビニル樹脂およびポリカーボネート樹脂/アクリロニトリルーブタジエンースチレン樹脂組成物なる群から選ばれる少なくとも１種の樹脂である上記第１項記載の高耐衝撃性樹脂組成物。 2) The thermoplastic resin is at least one resin selected from the group consisting of polyolefin resin, polystyrene resin, acrylonitrile-butadiene-styrene resin, polyvinyl chloride resin, and polycarbonate resin / acrylonitrile-butadiene-styrene resin composition. The high impact-resistant resin composition according to item 1.
３）ポリオレフィン系樹脂がポリプロピレン系樹脂もしくはマレイン酸変性ポリプロピレンを含有するポリプロピレン系樹脂である上記第２項記載の高耐衝撃性樹脂組成物。 3) The high impact resistant resin composition according to the above item 2, wherein the polyolefin resin is a polypropylene resin or a polypropylene resin containing maleic acid-modified polypropylene.
４）バイオマス粉が平均粒子径5〜300μmの木粉、竹粉、籾殻粉、古米粉および米糠粉からなる群から選ばれる少なくとも１種の粉体である上記１項記載の高耐衝撃性樹脂組成物。 4) The high impact-resistant resin as described in 1 above, wherein the biomass powder is at least one powder selected from the group consisting of wood powder, bamboo powder, rice husk powder, old rice powder and rice bran powder having an average particle size of 5 to 300 μm. Composition.
５）バイオマス粉が木粉である上記４項記載の高耐衝撃性樹脂組成物。 5) The high impact-resistant resin composition as described in 4 above, wherein the biomass powder is wood powder.
６）有機繊維がアクリル繊維、ポリアミド繊維およびポリエステル繊維からなる群から選ばれる少なくとも１種の繊維である上記１項記載の高耐衝撃性樹脂組成物。 6) The high impact-resistant resin composition as described in 1 above, wherein the organic fiber is at least one fiber selected from the group consisting of acrylic fiber, polyamide fiber and polyester fiber.
７）有機繊維の平均繊維径が1〜25μｍである上記６項記載の高耐衝撃性樹脂組成物。 7) The high impact-resistant resin composition as described in 6 above, wherein the organic fiber has an average fiber diameter of 1 to 25 μm.
８）有機繊維の長さが3〜20mmである上記７記載の高耐衝撃性樹脂組成物。 8) The high impact-resistant resin composition as described in 7 above, wherein the organic fiber has a length of 3 to 20 mm.
バイオマス粉を含有する熱可塑性樹脂組成物に有機繊維を添加することにより、バイオマス粉含有熱可塑性樹脂組成物の剛性強度を損なうことなく、当該樹脂組成物の耐衝撃性を向上させることができる。 By adding organic fibers to the thermoplastic resin composition containing biomass powder, the impact resistance of the resin composition can be improved without impairing the rigidity strength of the biomass powder-containing thermoplastic resin composition.
本発明の高耐衝撃性樹脂組成物における熱可塑性樹脂は、耐熱性が高くはない構成成分である木粉に代表されるバイオマス粉を加熱・溶融時に焦がすことなく成形品が得られるように、耐熱性がそれ程は高くない必要があり、具体的にはポリオレフィン系樹脂、ポリスチレン樹脂、アクリロニトリルーブタジエンースチレン（ABS）樹脂、ポリ塩化ビニル（PVC）樹脂等の単品樹脂及びポリカーボネート（PC）/アクリロニトリルーブタジエンースチレン樹脂組成物（ABS）樹脂等の樹脂組成物である。 The thermoplastic resin in the high-impact-resistant resin composition of the present invention is such that a molded product can be obtained without scorching when heating and melting biomass powder represented by wood powder, which is a component that does not have high heat resistance. Heat resistance should not be so high. Specifically, polyolefin resin, polystyrene resin, acrylonitrile-butadiene-styrene (ABS) resin, single-component resin such as polyvinyl chloride (PVC) resin, and polycarbonate (PC) / acrylonitrile -A resin composition such as a butadiene-styrene resin composition (ABS) resin.
中でもポリオレフィン系樹脂が好ましく、例えば、高密度ポリエチレン、中密度ポリエチレン等のポリエチレン、ポリプロピレン、酸変性ポリプロピレン、ポリプロピレンとマレイン酸変性ポリプロピレンとを含有する樹脂組成物、プロピレン−エチレン共重合体、プロピレン−α−オレフィン共重合体、ポリブテン−１などを挙げることができる。 Among them, polyolefin resins are preferable, for example, polyethylene such as high density polyethylene and medium density polyethylene, polypropylene, acid-modified polypropylene, resin composition containing polypropylene and maleic acid-modified polypropylene, propylene-ethylene copolymer, propylene-α. -An olefin copolymer, polybutene-1, etc. can be mentioned.
この発明においては前記各種のポリオレフィン樹脂の中から、有機繊維との混錬を考慮して、その融点が１７０℃以下の樹脂を適宜に選択して、その一種を単独で使用することもできるし、その二種以上を併用することもできるが、ポリプロピレン、酸変性ポリプロピレン、ポリプロピレンとマレイン酸変性ポリプロピレンとを含有する樹脂組成物が好ましい。 In the present invention, in consideration of kneading with organic fibers, a resin having a melting point of 170 ° C. or lower is appropriately selected from the various polyolefin resins, and one of them can be used alone. Two or more of them can be used in combination, but a resin composition containing polypropylene, acid-modified polypropylene, polypropylene and maleic acid-modified polypropylene is preferable.
本発明の高耐衝撃性樹脂組成物に占める熱可塑性樹脂の割合は、熱可塑性樹脂、バイオマス粉、有機繊維の合計を100wt%として、10〜94wt%、好ましくは25〜85wt%である。 The ratio of the thermoplastic resin in the high impact resin composition of the present invention is 10 to 94 wt%, preferably 25 to 85 wt%, where the total of the thermoplastic resin, biomass powder and organic fiber is 100 wt%.
熱可塑性樹脂の割合が10wt%以下では、本発明の樹脂組成物の流動性が低下し、外観が悪くなると共に耐衝撃強度も低下する。一方、熱可塑性樹脂の割合が94wt%以上では、本発明の樹脂組成物の弾性率の向上の程度が小さい。 When the ratio of the thermoplastic resin is 10 wt% or less, the fluidity of the resin composition of the present invention is lowered, the appearance is deteriorated, and the impact strength is also lowered. On the other hand, when the ratio of the thermoplastic resin is 94 wt% or more, the degree of improvement in the elastic modulus of the resin composition of the present invention is small.
本発明の高耐衝撃性樹脂組成物の構成成分となるバイオマス粉は一般的なバイオマス物質を粉体化したものであり、木粉、竹粉、籾殻粉、古米粉および米糠粉等が例示され、場合によっては、これらを併用することができる。 Biomass powder, which is a constituent of the high impact resin composition of the present invention, is obtained by pulverizing a general biomass material, and examples thereof include wood powder, bamboo powder, rice husk powder, old rice powder, and rice bran powder. In some cases, these can be used in combination.
本発明の樹脂組成物のためのバイオマスの粉体化の方法には特別の限定はなく、一般的な方法で入手可能なもので充分である。但し、木粉、竹粉、籾殻粉、古米粉および米糠粉等の中で大気中の二酸化炭素の削減に大きく寄与するものは、国土の中で植生の占有面積の大きい木材由来の木粉と考えられ、木粉の有効利用は特に重要である。 There is no particular limitation on the method of pulverizing biomass for the resin composition of the present invention, and a method that can be obtained by a general method is sufficient. However, wood flour, bamboo flour, rice husk flour, old rice flour, rice bran flour, etc. that greatly contribute to the reduction of carbon dioxide in the atmosphere are wood-derived wood flour that has a large vegetation area in the country. The effective use of wood flour is especially important.
本発明で用いられる木粉としては、特に限定されず、他の原料と混合、混練できる形状、大きさであれば良いが、例えば、林業で発生する間伐材、製材工場から排出されるノコギリ屑（木屑、オガ屑）、木材チップ、廃木材の粉砕チップなどが挙げられ、木の種類は原則問われない。これらは１種のみを用いても良いし、２種以上を組み合わせて用いても良い。また、木粉の原料は、バージン原料である必要はなく、建築廃材等から再生したサイクル原料であっても良い。 The wood flour used in the present invention is not particularly limited, and may be any shape and size that can be mixed and kneaded with other raw materials. For example, thinned wood generated in forestry, sawdust discharged from a sawmill (Wood chips, sawdust), wood chips, waste wood crushed chips, etc. These may use only 1 type and may use it in combination of 2 or more type. Moreover, the raw material of wood powder does not need to be a virgin raw material, and may be a cycle raw material regenerated from building waste materials or the like.
本発明の高耐衝撃性樹脂組成物に使用可能なバイオマス粉の平均粒子は5〜300μｍ、好ましくは10〜200μｍである。平均粒子径が5μｍ以下では、バイオマス粉による本発明の樹脂組成物に対する弾性率の向上効果が発揮されにくくなると共に粉体の嵩密度が低下して嵩高くなるので、コンパウンドが困難となり、結果、生産性が低下し経済性を損なう場合がある。 The average particle | grains of the biomass powder which can be used for the high impact-resistant resin composition of this invention are 5-300 micrometers, Preferably it is 10-200 micrometers. If the average particle size is 5 μm or less, the effect of improving the elastic modulus of the resin composition of the present invention by biomass powder becomes difficult to be exhibited and the bulk density of the powder decreases and becomes bulky. Productivity may decrease and economic efficiency may be impaired.
一方、平均粒子径が300μm以上では、本発明の樹脂組成物からの成形品の外観が低下すると共に耐衝撃強度も低下する。 On the other hand, when the average particle diameter is 300 μm or more, the appearance of the molded product from the resin composition of the present invention is lowered and the impact strength is also lowered.
なお、平均粒子径の測定方法としては、篩法、遠心沈降法、コールター法、動的光散乱法、画像解析法、レーザー回析・散乱法等があり、何れでも良いがここでは、最も一般的に使用されているレーザー回析・散乱法により測定した有効径を用いた。 In addition, as a method for measuring the average particle size, there are a sieving method, a centrifugal sedimentation method, a Coulter method, a dynamic light scattering method, an image analysis method, a laser diffraction / scattering method, etc. The effective diameter measured by the laser diffraction / scattering method used in general is used.
本発明の高耐衝撃性樹脂組成物に占めるバイオマス粉の割合は、熱可塑性樹脂、バイオマス粉、有機繊維の合計を100wt%として、5〜70wt%、望ましくは10〜60wt%である。含有量が5wt%以下では、本発明の樹脂組成物の弾性率の向上への効果が小さく、且つ本発明の樹脂組成物の質感が低下する。一方、70wt%以上では、本発明の樹脂組成物の流動性が低下し、成形品の外観が悪化すると共に耐衝撃強度も低下する。 The proportion of biomass powder in the high impact resistance resin composition of the present invention is 5 to 70 wt%, preferably 10 to 60 wt%, where the total of the thermoplastic resin, biomass powder and organic fiber is 100 wt%. When the content is 5 wt% or less, the effect of improving the elastic modulus of the resin composition of the present invention is small, and the texture of the resin composition of the present invention is lowered. On the other hand, if it is 70 wt% or more, the fluidity of the resin composition of the present invention is lowered, the appearance of the molded product is deteriorated, and the impact strength is also lowered.
本発明の高耐衝撃性樹脂組成物の構成成分となる有機繊維はアクリル繊維、ポリアミド繊維、ポリエステル繊維等であるが、有機繊維はその融点が２００℃以上であることを要する。本発明の樹脂組成物を製造或いは成形加工する際に、有機繊維が溶融せずにそのまま残り、成形品中で有機繊維が強化剤としての役割を十分に果たすからである。有機繊維が本条件を満たす限り、市販品を使用することができる。 The organic fiber which is a constituent component of the high impact resistance resin composition of the present invention is an acrylic fiber, a polyamide fiber, a polyester fiber or the like, and the organic fiber needs to have a melting point of 200 ° C. or higher. This is because when the resin composition of the present invention is produced or molded, the organic fiber remains as it is without melting, and the organic fiber sufficiently plays a role as a reinforcing agent in the molded product. As long as the organic fiber satisfies this condition, a commercially available product can be used.
有機繊維の平均繊維径は1〜25μｍ、好ましくは5〜20μｍである。平均繊維径が1μｍ以下では、本発明の樹脂組成物の流動性が低下すると共に樹脂への分散性が低下し、また、経済的でなくなる。平均繊維径が25μｍ以上では、本発明の樹脂組成物の耐衝撃強度に対する向上効果が小さくなる。 The average fiber diameter of the organic fibers is 1 to 25 μm, preferably 5 to 20 μm. When the average fiber diameter is 1 μm or less, the fluidity of the resin composition of the present invention is lowered, the dispersibility in the resin is lowered, and it is not economical. When the average fiber diameter is 25 μm or more, the effect of improving the impact strength of the resin composition of the present invention becomes small.
また有機繊維の繊維長は3〜20mm、好ましくは5〜15mmである。3mm以下では衝撃強度の改良効果が小さく、20mm以上ではカットが難しく良好なペレットが得られなくなる場合があると共に繊維が絡み合い分散が悪くなり流動性や外観が悪くなる場合がある。 The fiber length of the organic fiber is 3 to 20 mm, preferably 5 to 15 mm. If it is 3 mm or less, the impact strength improvement effect is small, and if it is 20 mm or more, cutting may be difficult and good pellets may not be obtained, and the fibers may be entangled and dispersion may be deteriorated, resulting in poor fluidity and appearance.
本発明の高耐衝撃性樹脂組成物に占める有機繊維の割合は、熱可塑性樹脂、バイオマス粉、有機繊維の合計を100wt%として、1〜20wt%、好ましくは3〜15wt%である。その割合が1wt%以下では、本発明の樹脂組成物の耐衝撃強度の向上に対する効果が小さく、一方、その割合が20wt%以上では、本発明の樹脂組成物の流動性が低下し、成形品の外観が悪化する。 The proportion of the organic fiber in the high impact resin composition of the present invention is 1 to 20 wt%, preferably 3 to 15 wt%, where the total of the thermoplastic resin, biomass powder and organic fiber is 100 wt%. If the proportion is 1 wt% or less, the effect of improving the impact strength of the resin composition of the present invention is small. On the other hand, if the proportion is 20 wt% or more, the fluidity of the resin composition of the present invention decreases, and the molded product The appearance of will deteriorate.
次に本発明の樹脂組成物を製造する一般的な工程を説明する。
所定量の熱可塑性樹脂、バイオマス粉および有機繊維をそれぞれ計量し、混合・溶融・混練することにより、製造することができる。熱可塑性樹脂がポリオレフィン系樹脂の場合には、必要に応じて、酸変性ポリオレフィン系樹脂も併用することが好ましい。
Next, a general process for producing the resin composition of the present invention will be described.
A predetermined amount of thermoplastic resin, biomass powder and organic fiber can be weighed and mixed, melted and kneaded. When the thermoplastic resin is a polyolefin resin, it is preferable to use an acid-modified polyolefin resin in combination as necessary.
原料の混合は、通常、タンブラー、Ｖブレンダー、リボンブレンダーなどの混合機器を用いて行う。また、溶融混練は、通常、一軸押出機、二軸押出機、バンバリーミキサー、ロールミキサー、ブラベンダープラストグラフ、ニーダーなどの混練機器を用いて行い、造粒する。その際、前記各成分の配合物を同時に混練してもよく、また、性能向上をはかるべく各成分を分割して混練することもできる。 Mixing of the raw materials is usually performed using a mixing device such as a tumbler, V blender, or ribbon blender. The melt-kneading is usually performed by granulation using a kneading apparatus such as a single screw extruder, a twin screw extruder, a Banbury mixer, a roll mixer, a Brabender plastograph, a kneader. In that case, the compound of each said component may be knead | mixed simultaneously, and each component can also be divided and knead | mixed in order to improve performance.
バンバリーミキサーを使用すれば、原料の混合及び溶融混練を一つの装置で実施できるので、便利である。溶融混練の温度は熱可塑性樹脂の種類によって異なり、それぞれの代表的な温度を採用することができる。特に、熱可塑性樹脂がPVCの場合には、PVCの分解温度が高くはないので、PVCの分解を避けるための温度制御が重要となる。 Use of a Banbury mixer is convenient because the raw materials can be mixed and melt-kneaded in one apparatus. The temperature of melt kneading varies depending on the type of thermoplastic resin, and each typical temperature can be adopted. In particular, when the thermoplastic resin is PVC, since the decomposition temperature of PVC is not high, temperature control for avoiding the decomposition of PVC is important.
さらに、有機繊維は、予め熱可塑性樹脂中に高濃度で分散させた所謂マスターバッチペレットとしたものを、熱可塑性樹脂などと混合又は混練する方法もある。この方法によれば、本発明の熱可塑性樹脂組成物における有機繊維の混合・分散を容易にするなどして、本発明の樹脂組成物の性能向上を図ることができ、また、製造効率が向上するなど経済性も改善できる。 Furthermore, there is also a method in which organic fibers are mixed or kneaded with so-called master batch pellets previously dispersed in a thermoplastic resin at a high concentration with a thermoplastic resin or the like. According to this method, the performance of the resin composition of the present invention can be improved by facilitating mixing and dispersion of organic fibers in the thermoplastic resin composition of the present invention, and the production efficiency can be improved. Economic efficiency can be improved.
本発明の樹脂組成物は、例えば、射出成形（ガスアシスト射出成形、二色射出成形、インサート射出成形、コアバック射出成形、サンドイッチ射出成形も含む）、射出圧縮成形（プレスインジェクション）、押出成形、シート成形及び中空成形機などの周知の成形方法にて、成形することによって成形体とすることができる。この内、射出成形、圧縮成形又は射出圧縮成形にて得ることが好ましい。成形の温度も採用した熱可塑性樹脂の種類に応じて選択することができる。 Examples of the resin composition of the present invention include injection molding (including gas assist injection molding, two-color injection molding, insert injection molding, core back injection molding, and sandwich injection molding), injection compression molding (press injection), extrusion molding, A molded body can be formed by molding by a known molding method such as sheet molding and a hollow molding machine. Among these, it is preferable to obtain by injection molding, compression molding or injection compression molding. The molding temperature can also be selected according to the type of thermoplastic resin employed.
以下、本発明を実施例及び比較例で具体的に説明する。 Hereinafter, the present invention will be specifically described with reference to Examples and Comparative Examples.
実施例１〜９ 比較例１〜１３
使用した成分は、
PP: MFR＝30のブロックPP
酸変性PP: マレイン酸付加量5wt%
Examples 1-9 Comparative Examples 1-13
The ingredients used were
PP: Block PP with MFR = 30
Acid-modified PP: Maleic acid addition amount 5wt%
木粉１：平均粒子径50μｍの檜粉
木粉２：平均粒子径350μｍの杉粉
木粉３：平均粒子径20μｍの杉粉
竹粉： 平均粒子径120μｍ
Wood powder 1: cocoon powder with an average particle diameter of 50 μm Wood powder 2: Cedar powder with an average particle diameter of 350 μm Wood powder 3: Cedar powder with an average particle diameter of 20 μm Bamboo powder: Average particle diameter of 120 μm
有機繊維１；繊維径8μｍのアクリル繊維
有機繊維２：繊維径80μｍのポリアミド繊維
有機繊維３：繊維径20μｍのポリエステル繊維
有機繊維４：廃棄ポリエステル繊維（繊維径100μｍ）
Organic fiber 1: Acrylic fiber with a fiber diameter of 8 μm Organic fiber 2: Polyamide fiber with a fiber diameter of 80 μm Organic fiber 3: Polyester fiber with a fiber diameter of 20 μm Organic fiber 4: Waste polyester fiber (fiber diameter of 100 μm)
エラストマー：MI=5 のエチレン・オクテン共重合体
米糠粉：平均粒子径12μｍ
古米：平均粒子径70μｍ
ABS: MFR=23 (テクノポリマー製: 110)
PS: MFR=7 (PSJ製: 408)
PE: MFR=12 (プライムポリマー製:1300J)
Elastomer: Ethylene octene copolymer with MI = 5 Rice bran powder: Average particle size 12μm
Old rice: average particle size 70μm
ABS: MFR = 23 (Technopolymer: 110)
PS: MFR = 7 (PSJ: 408)
PE: MFR = 12 (Prime polymer: 1300J)
表１〜３に示す各成分を所定量計量した後、二軸混練機（バンバリーミキサー）に投入、その後設定温度180℃で10分間溶融混練した。得られた樹脂隗をコニカルタイプの二軸押出機に投入して、温度180℃で押し出して、目的とする組成物のペレットを得た。このペレットを100℃で8時間乾燥後、射出成形にて試験片を作成し、各種試験を行なった。また、実施例とは一部条件を変更して、比較例も実施した。 Each component shown in Tables 1 to 3 was weighed in a predetermined amount, charged into a twin-screw kneader (Banbury mixer), and then melt-kneaded for 10 minutes at a set temperature of 180 ° C. The obtained resin cake was put into a conical type twin screw extruder and extruded at a temperature of 180 ° C. to obtain pellets of the intended composition. The pellets were dried at 100 ° C. for 8 hours, test pieces were prepared by injection molding, and various tests were performed. Moreover, a comparative example was also implemented by changing some conditions from the examples.
引張強さ： JIS K-7113に準拠
曲げ弾性率： JIS K-7203に準拠
アイゾット衝撃強さ： JIS K-7110に準拠
外観：70×70×2mm の平板を成形し、その表面を目視にて観察した
Tensile strength: Conforms to JIS K-7113 Flexural modulus: Conforms to JIS K-7203 Izod impact strength: Conforms to JIS K-7110 Appearance: Mold a flat plate of 70 x 70 x 2 mm and visually check its surface Observed
結果を表−１、表―２、表―３に示す。 The results are shown in Table-1, Table-2, and Table-3.
現在の標準的な技術によるWPCの物性を比較例１に示す。外観および耐衝撃性が低い事が判る。 The physical properties of WPC using the current standard technology are shown in Comparative Example 1. It can be seen that the appearance and impact resistance are low.
比較例２に示すように粒子径の小さい木粉（木粉１）を使用する事で外観は良くなるものの衝撃強度の大幅な向上は認められない。これに対し、実施例１〜３で示した粒子径の小さい木粉（木粉１）とある太さの有機繊維（有機繊維１）を併用する事で、外観が良好で方且つ衝撃強度の高いものが得られる事が判る。また衝撃強度と相反する引張強度や曲げ弾性率も同時に向上している事が判る。 As shown in Comparative Example 2, although the appearance is improved by using wood powder (wood powder 1) having a small particle diameter, no significant improvement in impact strength is observed. On the other hand, by using together wood powder (wood powder 1) having a small particle diameter and organic fiber (organic fiber 1) of a certain thickness shown in Examples 1 to 3, the appearance is good and the impact strength is high. It turns out that a high thing is obtained. It can also be seen that the tensile strength and flexural modulus contradicting the impact strength are simultaneously improved.
更に酸変性PPを更に併用する事で、引張強度、曲げ弾性率、衝撃強度の何れも更に向上する事がわかる。 Furthermore, it can be seen that further use of acid-modified PP further improves all of tensile strength, flexural modulus, and impact strength.
比較例３では、樹脂の衝撃強度を上げるための最も一般的な方法であるエラストマーを添加しているが、WPCに関しては衝撃強度の向上効果は小さく、逆に引張強度や曲げ弾性率が大きく低下する。 In Comparative Example 3, an elastomer, which is the most common method for increasing the impact strength of a resin, is added. However, the effect of improving the impact strength is small for WPC, and conversely, the tensile strength and the flexural modulus are greatly reduced. To do.
組成割合は同一であるものの、比較例４では木粉の平均粒子径が請求範囲を外れた場合を、また比較例５では有機繊維の繊維径が請求範囲を外れた場合を示している。何れも衝撃強度は低い値となる事が判る。 Although the composition ratio is the same, Comparative Example 4 shows the case where the average particle diameter of the wood flour is outside the claimed range, and Comparative Example 5 shows the case where the fiber diameter of the organic fiber is outside the claimed range. It can be seen that both have low impact strength.
比較例６，７は、木粉の充填量が請求範囲を外れた場合、また比較例８、９は有機繊維の充填量が請求範囲を外れた場合、比較例１０は有機繊維の繊維径および充填量が請求範囲を外れた場合の結果を示す。何れかが本発明の範囲から外れると、強度、弾性率、衝撃強度、外観の全てを満足する事が出来ない事が判る。特に衝撃強度の改良効果が低くなる事が判る。 In Comparative Examples 6 and 7, when the filling amount of the wood powder is outside the claimed range, and Comparative Examples 8 and 9 are when the filling amount of the organic fiber is outside the claimed range, Comparative Example 10 is the fiber diameter of the organic fiber and The result when the filling amount is out of the claims is shown. If any of these is out of the scope of the present invention, it can be seen that all of the strength, elastic modulus, impact strength, and appearance cannot be satisfied. It can be seen that the effect of improving the impact strength is particularly low.
バイオマス素材を粉砕して粉体とし、プラスチックス及び有機繊維と複合化することで高弾性率高耐衝撃性樹脂組成物を製造できる。更には、バイオマス素材の使用を通して空気中の炭酸ガスの削減にも寄与できる。 By pulverizing the biomass material into powder and compounding it with plastics and organic fibers, it is possible to produce a high modulus and high impact resin composition. Furthermore, it can contribute to the reduction of carbon dioxide in the air through the use of biomass material.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021042318A (en) * | 2019-09-11 | 2021-03-18 | 藤森工業株式会社 | Resin composition, and molded article made of the resin composition |
| WO2022224686A1 (en) | 2021-04-20 | 2022-10-27 | デンカ株式会社 | Resin composition and molded article |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63191847A (en) * | 1986-07-09 | 1988-08-09 | 韓一理化株式会社 | Thermoplastic resin molded product and its production |
| JPH11279416A (en) * | 1998-03-30 | 1999-10-12 | Nippon Zeon Co Ltd | Thermoplastic resin composition |
| JP2005023260A (en) * | 2003-07-04 | 2005-01-27 | Toray Ind Inc | Electrical/electronic component |
| CN102911508A (en) * | 2012-11-13 | 2013-02-06 | 东北林业大学 | Polyester fiber enhanced wood-plastic composite material and preparation method thereof |
-
2017
- 2017-01-25 JP JP2017010933A patent/JP2018119048A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63191847A (en) * | 1986-07-09 | 1988-08-09 | 韓一理化株式会社 | Thermoplastic resin molded product and its production |
| JPH11279416A (en) * | 1998-03-30 | 1999-10-12 | Nippon Zeon Co Ltd | Thermoplastic resin composition |
| JP2005023260A (en) * | 2003-07-04 | 2005-01-27 | Toray Ind Inc | Electrical/electronic component |
| CN102911508A (en) * | 2012-11-13 | 2013-02-06 | 东北林业大学 | Polyester fiber enhanced wood-plastic composite material and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021042318A (en) * | 2019-09-11 | 2021-03-18 | 藤森工業株式会社 | Resin composition, and molded article made of the resin composition |
| JP7420512B2 (en) | 2019-09-11 | 2024-01-23 | 藤森工業株式会社 | Resin composition and molded product made from the resin composition |
| WO2022224686A1 (en) | 2021-04-20 | 2022-10-27 | デンカ株式会社 | Resin composition and molded article |
| KR20230162706A (en) | 2021-04-20 | 2023-11-28 | 덴카 주식회사 | Resin compositions and molded articles |
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