JP2019503411A - Eggshell powder resin composition - Google Patents
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
Abstract
本発明では、高分子重合体１００重量部に対して卵殻粉末５〜５０重量部を含む樹脂組成物を提供する。本発明に係る樹脂組成物は、環境に優しい素材であって、食品廃棄物である卵殻をリサイクルしてプラスチックの素材として用いてコスト削減が可能である。また、本発明に係る樹脂組成物は、コスト削減のために投入される材料としてバイオマスではなく、不燃性の材料を投入することによって、焼却廃棄の際に二酸化炭素の発生量が少なく、環境負荷が少ない。さらには、また、本発明に係る樹脂組成物は、卵殻粉末と基礎樹脂との分散に優れており、美麗な外観を有する成形品として製造されることができる。 In the present invention, a resin composition containing 5 to 50 parts by weight of eggshell powder with respect to 100 parts by weight of a high molecular weight polymer is provided. The resin composition according to the present invention is an environmentally friendly material, and can reduce costs by recycling eggshell that is food waste and using it as a plastic material. In addition, the resin composition according to the present invention is not biomass as a material that is input for cost reduction, but by introducing an incombustible material, the amount of carbon dioxide generated during incineration disposal is small, and the environmental load is reduced. Less is. Furthermore, the resin composition according to the present invention is excellent in dispersion between the eggshell powder and the base resin, and can be produced as a molded product having a beautiful appearance.
Description
本発明は卵殻粉末樹脂組成物に関し、より詳細には食品廃棄物である卵殻粉末をリサイクルしてコスト削減が可能でありながらも、卵殻粉末と基礎樹脂との分散性に優れており、美麗な表面外観を有する成形品の製造が可能な卵殻粉末樹脂組成物に関する。 The present invention relates to an eggshell powder resin composition, and more specifically, the eggshell powder, which is a food waste, can be recycled to reduce costs, but the dispersibility between the eggshell powder and the base resin is excellent and beautiful. The present invention relates to an eggshell powder resin composition capable of producing a molded product having a surface appearance.
最近、食品包装材として利用されるフィルムを含む各種のプラスチック使用量の増加に伴い、素材／製品の開発の際にその廃棄方法まで考慮して環境負荷が少ないながらもコスト削減まで可能な素材の開発が様々な方法で試みられている。 Recently, with the increase in the amount of various plastics including films used as food packaging materials, it is possible to reduce the cost while reducing environmental impact while considering the disposal method when developing materials / products. Development has been attempted in various ways.
例えば、特許文献の韓国特許出願公開公報２０１３−００６８６２０号、韓国特許出願公開公報２０１４−００９４８６５号などには、植物体を粉砕して収得した粉末や、草本系農産廃棄物を粉末化した後、これをプラスチック樹脂と配合して射出、押出などによる成形品として製造する方法が開示されている。開示された素材や方法は、バイオマスが添加されたプラスチック素材であって、埋め立てて廃棄する場合、生分解が可能であるというメリットがある。 For example, in Korean Patent Application Publication No. 2013-0068620, Korean Patent Application Publication No. 2014-0094865, etc. of patent documents, powder obtained by pulverizing a plant body or herbaceous agricultural waste is pulverized, A method of blending this with a plastic resin and producing it as a molded article by injection, extrusion or the like is disclosed. The disclosed material or method is a plastic material to which biomass is added, and has an advantage that biodegradation is possible when disposed in landfill.
しかしながら、前述したバイオマス添加素材は、プラスチック素材との相溶性が良くないのが普通であるので、これをプラスチック素材と配合／混練するためには、前処理に相当な費用を投じなければならず、また、埋め立てて廃棄する場合には生分解性を有するということが有利であるものの、焼却して廃棄する場合にはバイオマスも結局、二酸化炭素の形態で環境に戻るということから、環境への負荷は従来のプラスチック素材と変わらない。 However, since the aforementioned biomass-added material is usually not compatible with the plastic material, a considerable amount of pretreatment must be invested in order to blend / knead it with the plastic material. In addition, although it is advantageous to have biodegradability when disposed of in landfills, biomass is eventually returned to the environment in the form of carbon dioxide when disposed of by incineration. The load is no different from conventional plastic materials.
そこで、本発明者らは、焼却して廃棄する場合、二酸化炭素の発生量が少ないながらも、コスト削減の可能な素材を探すために努力した結果、食品廃棄物である卵殻をプラスチック素材の充填剤として適用可能であることに着目して本発明を完成した。 Therefore, the present inventors, when incinerated and disposed of, as a result of efforts to find a material that can reduce the cost while producing a small amount of carbon dioxide, filling eggshells that are food waste with plastic materials This invention was completed paying attention to being applicable as an agent.
本発明の目的は、コスト削減が可能でありながらも美麗な表面外観を有する成形品の製造が可能な卵殻粉末を含む樹脂組成物を提供することにある。 An object of the present invention is to provide a resin composition containing eggshell powder capable of producing a molded article having a beautiful surface appearance while being able to reduce costs.
本発明の他の目的は、前記樹脂組成物から製造される成形品を提供することにある。 Another object of the present invention is to provide a molded article produced from the resin composition.
前記目的を達成するための本発明に係る卵殻粉末樹脂組成物は、高分子重合体１００重量部に対して卵殻粉末５〜５０重量部を含むことを特徴とする。 In order to achieve the above object, the eggshell powder resin composition according to the present invention comprises 5 to 50 parts by weight of eggshell powder with respect to 100 parts by weight of the polymer.
前記高分子重合体は、２００℃以下の温度で卵殻粉末と溶融混練が可能であることが好ましい。 The polymer is preferably melt kneaded with eggshell powder at a temperature of 200 ° C. or lower.
前記卵殻粉末は、１００メッシュ篩（開口〜１５０μｍ）を通過する大きさであることが好ましい。 The eggshell powder is preferably sized to pass through a 100 mesh sieve (opening to 150 μm).
前記卵殻粉末樹脂組成物は、高分子重合体１００重量部に対して無機フィラー１０〜３０重量部をさらに含むことができる。 The eggshell powder resin composition may further include 10 to 30 parts by weight of an inorganic filler with respect to 100 parts by weight of the polymer.
前記卵殻粉末高分子重合体１００重量部に対してワックス１〜１０重量部をさらに含むことができる。 1 to 10 parts by weight of a wax may be further included based on 100 parts by weight of the eggshell powder polymer.
本発明に係る樹脂組成物は環境に優しい素材であって、食品廃棄物である卵殻をリサイクルしてプラスチック素材として用いてコスト削減が可能である。 The resin composition according to the present invention is an environmentally friendly material, and can reduce costs by recycling eggshell, which is food waste, and using it as a plastic material.
また、本発明に係る樹脂組成物は、コスト削減のために投入される材料としてバイオマスではなく、不燃性の材料を投入することによって、焼却廃棄の際に二酸化炭素の発生量が少なく、環境負荷が少ない。 In addition, the resin composition according to the present invention is not biomass as a material that is input for cost reduction, but by introducing an incombustible material, the amount of carbon dioxide generated during incineration disposal is small, and the environmental load is reduced. Less is.
また、本発明に係る樹脂組成物は、卵殻粉末と基礎樹脂との分散に優れており、美麗な外観を有する成形品として製造されることができる。 The resin composition according to the present invention is excellent in dispersion of eggshell powder and base resin, and can be produced as a molded product having a beautiful appearance.
本発明に係る卵殻粉末樹脂組成物は、高分子重合体１００重量部に対して卵殻粉末５〜５０重量部を含むことを特徴とする。 The eggshell powder resin composition according to the present invention includes 5 to 50 parts by weight of eggshell powder with respect to 100 parts by weight of the polymer.
本発明の卵殻粉末樹脂組成物に適用される高分子重合体は、食品包装材、幼児用品、浴室用品、台所用品などに適用される該技術分野において公知の高分子材料が用いられることができる。 As the polymer used in the eggshell powder resin composition of the present invention, a polymer material known in the technical field applied to food packaging materials, infant products, bathroom products, kitchen products and the like can be used. .
好ましくは、２００℃以下の温度で、より好ましくは１９０℃以下の温度で卵殻粉末と融解状態で混練加工の可能な高分子材料を適用する。発明者らの繰り返し実験によれば、卵殻粉末と高分子材料の混練加工において温度が２００℃を超える場合には卵殻の炭化により変色が発生し、かつ、混練加工中に不快な臭いが発生し、このような臭いは作業が完了した後にも長期間残存することが確認された。前記非限定的な意図として説明すると、前記変色と臭いの発生は、卵殻に少量含まれたタンパク質の炭化により発生するものと理解される。 Preferably, a polymer material that can be kneaded with eggshell powder in a molten state is applied at a temperature of 200 ° C. or lower, more preferably at a temperature of 190 ° C. or lower. According to the inventors' repeated experiments, when the temperature exceeds 200 ° C. in the kneading process of the eggshell powder and the polymer material, discoloration occurs due to carbonization of the eggshell, and an unpleasant odor occurs during the kneading process. It was confirmed that such an odor remained for a long time after the work was completed. When described as the non-limiting intention, it is understood that the discoloration and odor generation are caused by carbonization of proteins contained in eggshell in a small amount.
通常、高分子樹脂の加工温度の下限は、融点より１０℃高い温度程度である。したがって、本発明の卵殻粉末樹脂組成物に基礎樹脂として適用可能な樹脂は１９０℃以下の融点を有する樹脂である。非制限的な意図として例えば、線形低密度ポリエチレン（ＬＬＤＰＥ）、低密度ポリエチレン（ＬＤＰＥ）、高密度ポリエチレン（ＨＤＰＥ）を含むポリエチレンと、エチレンビニルアセテート（ＥＶＡ）と、ポリビニルアルコール（ＰＶＡ）と、ポリプロピレン（ＰＰ）の単独重合体や、プロピレンとＣ３〜Ｃ１０のアルケンの共重合体と、ＡＢＳと、ナイロン、ポリエステル等が本発明の組成物に基礎樹脂として適用されることができる。 Usually, the lower limit of the processing temperature of the polymer resin is about 10 ° C. higher than the melting point. Therefore, the resin applicable as the base resin to the eggshell powder resin composition of the present invention is a resin having a melting point of 190 ° C. or lower. Non-limiting intentions include, for example, linear low density polyethylene (LLDPE), low density polyethylene (LDPE), polyethylene including high density polyethylene (HDPE), ethylene vinyl acetate (EVA), polyvinyl alcohol (PVA), and polypropylene. A homopolymer of (PP), a copolymer of propylene and a C3-C10 alkene, ABS, nylon, polyester or the like can be applied as a base resin to the composition of the present invention.
本発明に適用される卵殻粉末は、鳥類、爬虫類動物の卵殻を微細に粉砕して粉末化したものである。通常は、収集された卵殻を洗浄、卵殻膜の除去、乾燥、粉砕などを含む一連の作業を経て製造される。組成的には、炭酸カルシウムが主成分をなしており（〜９３ｗｔ％）、少量の炭酸マグネシウム（〜１ｗｔ％）、リン酸カルシウム（〜１ｗｔ％）、タンパク質類（〜５ｗｔ％）を含むものと知られている。 The eggshell powder applied to the present invention is obtained by finely pulverizing eggshells of birds and reptiles. Usually, the collected eggshell is manufactured through a series of operations including washing, removal of eggshell membranes, drying and grinding. In terms of composition, calcium carbonate is the main component (˜93 wt%) and is known to contain a small amount of magnesium carbonate (˜1 wt%), calcium phosphate (˜1 wt%), and proteins (˜5 wt%). ing.
前記卵殻粉末は、多様な大きさに粉砕された状態の粉末状に商業的に入手することができる。本発明に適用される卵殻粉末は、好ましくは１００メッシュ篩（開口〜１５０μｍ）、さらに好ましくは２００メッシュの篩（開口〜７０μｍ）、最も好ましくは４００メッシュ篩（開口〜４０μｍ）を通過する大きさのものを用いる。発明者らの繰り返し実験によれば、１００メッシュの篩を通過することのできない大きさである場合には、基礎樹脂と卵殻粉末の分散が円滑でないことが確認された。 The eggshell powder can be commercially obtained in the form of powders pulverized into various sizes. The eggshell powder applied to the present invention preferably has a size that passes through a 100 mesh sieve (opening to 150 μm), more preferably a 200 mesh sieve (opening to 70 μm), and most preferably a 400 mesh sieve (opening to 40 μm). Use one. According to the repeated experiments by the inventors, it was confirmed that the dispersion of the base resin and the eggshell powder was not smooth when the size could not pass through a 100 mesh sieve.
一方、本発明に係る組成物において卵殻粉末の含量は、高分子重合体１００重量部に対して卵殻粉末５〜５０重量部であることが好ましい。卵殻粉末の含量が５０重量部を超える場合には、基礎樹脂素材の物性（例えば、引張強度、伸率、衝撃強度など）の低下が著しくなる。 On the other hand, the content of eggshell powder in the composition according to the present invention is preferably 5 to 50 parts by weight of eggshell powder with respect to 100 parts by weight of the polymer. When the content of eggshell powder exceeds 50 parts by weight, the physical properties (eg, tensile strength, elongation, impact strength, etc.) of the base resin material are significantly reduced.
本発明に係る組成物には、好ましくは無機フィラーがさらに含まれることができる。やはり発明者らの繰り返し実験によれば、無機フィラーがさらに含まれる場合、その作用の機作は明確ではないが、卵殻粉末と基礎樹脂との混練及び分散が改善されることが確認された。このような目的で用いられる無機フィラーは、炭酸カルシウム、粘土、黄土、滑石及びカオリンの中で何れか一つ以上であり得る。最も好ましくは炭酸カルシウムを用いる。 The composition according to the present invention may preferably further include an inorganic filler. According to the repeated experiments by the inventors, when an inorganic filler is further contained, the mechanism of the action is not clear, but it was confirmed that the kneading and dispersion of the eggshell powder and the base resin are improved. The inorganic filler used for such a purpose may be any one or more of calcium carbonate, clay, ocher, talc and kaolin. Most preferably, calcium carbonate is used.
一方、無機フィラーの含量は、前記高分子重合体１００重量部に対して５重量部〜３０重量部を用いることが良い。無機フィラーを５重量部未満で用いる場合、混練及び分散の改善が十分ではなく、一方、３０重量部以上を用いると、製品の引張強度、延伸率など物性の低下が誘発される。 On the other hand, the content of the inorganic filler is preferably 5 to 30 parts by weight with respect to 100 parts by weight of the polymer. When the inorganic filler is used in an amount of less than 5 parts by weight, the kneading and dispersion are not sufficiently improved. On the other hand, when 30 parts by weight or more is used, the physical properties such as the tensile strength and stretch ratio of the product are lowered.
また、本発明に係る卵殻粉末樹脂組成物にはワックスが添加されることができる。前記ワックスは、卵殻粉末の表面にコーティングされて卵殻粉末と基礎樹脂の分散を改善し、かつ、卵殻粉末の水分吸収を防止する機能を果たす。このような目的で用いられるワックスは、商業的に購入可能なものであれば、制限なく本発明の組成物に適用されることができ、例えば、パラフィンワックス、流動パラフィンワックス、蜜蝋、モンタンワックス、乳化ワックス、キャンデリラワックス、ＰＥワックス、ＰＰワックスなどが用いられることができる。 In addition, a wax may be added to the eggshell powder resin composition according to the present invention. The wax is coated on the surface of the eggshell powder to improve the dispersion of the eggshell powder and the base resin and to prevent moisture absorption of the eggshell powder. The wax used for such purposes can be applied to the composition of the present invention without limitation as long as it is commercially available, and examples thereof include paraffin wax, liquid paraffin wax, beeswax, montan wax, Emulsifying wax, candelilla wax, PE wax, PP wax and the like can be used.
前記ワックスの使用量は、高分子重合体１００重量部に対して１〜２０重量部の割合であることが好ましい。１重量部未満で使用時、コーティング機能及び滑剤の補助剤としての役割が微弱であり、２０重量部を超えて用いる場合、超過量が組成物の製造及び後工程において溶出されて表面不良及び作業性不良（異物溶出）の原因となる恐れがある。 The amount of the wax used is preferably 1 to 20 parts by weight with respect to 100 parts by weight of the polymer. When used in an amount of less than 1 part by weight, the coating function and the role as an auxiliary agent of the lubricant are weak. May cause inferiority (foreign substance elution).
前記ワックスは、基礎樹脂と卵殻粉末、無機フィラー、その他の添加剤などを混合した後、押出する方法で組成物に投入されることができる。卵殻粉末投入の他の例としては、前記ワックスが卵殻粉末と事前に配合されて、ワックスの表面コーティングされた卵殻粉末の形態で用いられることである。表面コーティングされた卵殻粉末は、卵殻粉末にワックスを投入して３００〜８００ｒｐｍで高速攪拌しながら、攪拌時に発生する自己発熱によりワックスを溶解させて卵殻粉末の表面をコーティングする方法で得られる。 The wax can be added to the composition by a method of extruding after mixing a base resin and eggshell powder, an inorganic filler, other additives and the like. Another example of eggshell powder input is that the wax is pre-blended with eggshell powder and used in the form of eggshell powder coated with a wax surface. The surface-coated eggshell powder is obtained by a method of coating the surface of the eggshell powder by charging the eggshell powder with wax and dissolving the wax by self-heating generated during stirring while stirring at a high speed of 300 to 800 rpm.
一方、本発明に係る組成物には、必要に応じて熱安定剤、酸化防止剤、滑剤、離型剤、核剤、顔料、染料、紫外線安定剤、難燃材、可塑剤など、該技術分野において公知の添加剤がさらに含まれることができるのは勿論である。 On the other hand, the composition according to the present invention includes, as necessary, the heat stabilizer, antioxidant, lubricant, mold release agent, nucleating agent, pigment, dye, ultraviolet stabilizer, flame retardant, plasticizer, etc. Of course, additives known in the art can further be included.
本発明に係る卵殻粉末樹脂組成物は、構成成分を溶融混練した後、これをペレット化する公知の方法で製造されることができる。 The eggshell powder resin composition according to the present invention can be produced by a known method in which constituent components are melt-kneaded and then pelletized.
例えば、組成物の溶融混練は、一軸押出機や二軸押出機を利用して遂行されることができ、組成物の各成分の投入は、パウダーやペレット状態の基礎樹脂、卵殻粉末、無機フィラー及びその他の必要な添加剤をハンドブレンドやバンバリーミキサーなど適当な手段を利用して配合した後、押出機に投入されるか、または一部の成分は計量しながら押出機の他の位置に投入されることもできる。溶融混練が完了した後は、これをペレット化して次の工程に用いることができる。 For example, the melt kneading of the composition can be performed using a single screw extruder or a twin screw extruder, and each component of the composition is charged with a basic resin in a powder or pellet state, eggshell powder, inorganic filler. And other necessary additives are blended using appropriate means such as hand blending or Banbury mixer, and then put into the extruder, or some components are metered into other positions of the extruder Can also be done. After melt kneading is completed, it can be pelletized and used in the next step.
以下、実施例を通じて本発明の構成及びそれによる効果をより詳細に説明する。本実施例は、本発明をより具体的に説明するための例示に過ぎず、本発明の範囲がこれらの実施例に限定されるものではない。 Hereinafter, the configuration of the present invention and the effects thereof will be described in more detail through examples. The present examples are merely examples for explaining the present invention more specifically, and the scope of the present invention is not limited to these examples.
次の表１に係る配合割合による組成で、本発明に係る卵殻粉末樹脂組成物を準備した。 The eggshell powder resin composition according to the present invention was prepared with the composition according to the blending ratio according to Table 1 below.
・投入量の単位：重量部
・ポリプロピレン樹脂：湖南石油化学、Ｊ−３２０Ｃ
・卵殻粉末：２００メッシュ篩を通過、９５重量％以上
・炭酸カルシウム：Ｏｍｙａ、ＯＭ１Ｔ
・ワックス：ライオンケミカル、１０２Ｎ
・酸化防止剤：Ｃｉｂａ−Ｇｅｉｇｙ、Ｉｒｇａｎｏｘ１０１０
-Unit of input amount: parts by weight-Polypropylene resin: Hunan Petrochemical, J-320C
・ Egg shell powder: passed through a 200 mesh sieve, 95% by weight or more ・ Calcium carbonate: Omya, OM1T
・ Wax: Lion Chemical, 102N
Antioxidants: Ciba-Geigy, Irganox 1010
まず、高速攪拌機に卵殻粉末とワックスを投入し、４００ｒｐｍの速度で高速攪拌して表面にワックスがコーティングされた卵殻粉末を準備した。次に、ポリプロピレン樹脂、前記準備されたワックスコーティングの卵殻粉末、炭酸カルシウム、及びＺｎ−ステアレートを配合した後、二軸押出機のホッパーに投入し、バレルの最高温度１９０℃で溶融混練させた後、冷却、カッティングしてペレット状態の組成物を製造した。 First, eggshell powder and wax were introduced into a high-speed stirrer and stirred at a high speed of 400 rpm to prepare eggshell powder coated with wax on the surface. Next, after blending polypropylene resin, eggshell powder of the prepared wax coating, calcium carbonate, and Zn-stearate, it was put into a hopper of a twin screw extruder and melt kneaded at a barrel maximum temperature of 190 ° C. Thereafter, the mixture was cooled and cut to produce a pellet-shaped composition.
前記製造された実施例と比較例の熱可塑性樹脂組成物を利用して、卵座形態の製品を射出成形した。 Using the manufactured thermoplastic resin compositions of Examples and Comparative Examples, a product in the form of an egg was injection molded.
図１は、本発明の実施例に係る組成物を利用して作製された射出成形品に対する写真であり、図２は、比較例に係る組成物を利用して作製された射出成形品に対する写真である。図１によれば、高分子重合体と卵殻粉末を溶融混練することにおいて、無機フィラーを共に用いる場合、卵殻粉末の分散が均一であり、表面状態の美麗な成形品が得られることを確認できる。一方、図２から、卵殻粉末樹脂組成物を製造することにおいて基礎樹脂と卵殻粉末のみを用いる場合、組成物を用いて最終成形された製品において卵殻粉末の分散状態が不均一であることが目視で認められた。前記結果から、卵殻粉末樹脂組成物を製造することにおいて、無機フィラー（特に、炭酸カルシウム）を追加で投入してこそ、卵殻粉末の分散状態が良好であり、かつ、均一な厚さの製品を作製可能であることが認められた。 FIG. 1 is a photograph of an injection-molded article produced using the composition according to the example of the present invention, and FIG. 2 is a photograph of an injection-molded article produced using the composition according to the comparative example. It is. According to FIG. 1, in the case of using an inorganic filler together in melt-kneading a polymer and eggshell powder, it can be confirmed that the dispersion of the eggshell powder is uniform and a molded product having a beautiful surface state can be obtained. . On the other hand, it can be seen from FIG. 2 that when only the base resin and eggshell powder are used in the production of the eggshell powder resin composition, the eggshell powder is not uniformly dispersed in the final product formed using the composition. It was recognized in. From the above results, in producing an eggshell powder resin composition, it is only when an inorganic filler (especially calcium carbonate) is additionally added that the eggshell powder is well dispersed and has a uniform thickness. It was found that it could be made.
本発明に係る卵殻粉末樹脂組成物は、射出成形、押出成形またはシート成形などの公知の成形方法で、食品包装材、幼児用品、浴室用品、台所用品、自動車の内装材、産業用品などに適用されることができる。 The eggshell powder resin composition according to the present invention is a known molding method such as injection molding, extrusion molding or sheet molding, and is applied to food packaging materials, infant products, bathroom products, kitchen products, automobile interior materials, industrial products, etc. Can be done.
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| PCT/KR2017/000361 WO2017131364A1 (en) | 2016-01-27 | 2017-01-11 | Eggshell powder resin composition |
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