JP2000281909A - Production of thermoplastic resin molding - Google Patents
Production of thermoplastic resin moldingInfo
- Publication number
- JP2000281909A JP2000281909A JP9299599A JP9299599A JP2000281909A JP 2000281909 A JP2000281909 A JP 2000281909A JP 9299599 A JP9299599 A JP 9299599A JP 9299599 A JP9299599 A JP 9299599A JP 2000281909 A JP2000281909 A JP 2000281909A
- Authority
- JP
- Japan
- Prior art keywords
- thermoplastic resin
- aluminum hydroxide
- molding
- weight
- moisture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Bag Frames (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は熱可塑性樹脂成形体
の製造法に関する。詳細には混合、成形時に水酸化アル
ミニウムに起因する発泡を防止し、高い衝撃強度を有す
る熱可塑性樹脂成形体であって、ゴミとともに焼却処理
する場合に排ガス中のＣＯガス濃度を低減することが可
能な熱可塑性樹脂成形体の製造法に関する。[0001] The present invention relates to a method for producing a thermoplastic resin molded article. In detail, it is a thermoplastic resin molded article with high impact strength that prevents foaming due to aluminum hydroxide during mixing and molding, and can reduce the CO gas concentration in exhaust gas when incinerated with garbage. The present invention relates to a method for producing a possible thermoplastic resin molded article.
【0002】[0002]
【従来の技術】近年、石油化学、有機高分子化学の目覚
ましい進歩により、合成樹脂が我々の生活空間の中で大
変身近な存在となっている。例えばポリエチレン、ポリ
プロピレン等が各種包装材、自動車や家屋内のカーペッ
ト、内張り等の内装材に使用され、ポリスチレン、ＡＳ
樹脂、ＡＢＳ樹脂、ポリアミド、ポリカーボネート及び
エポキシ樹脂等がＴＶ、パソコン及びその他電気製品の
ハウジング、電子部品のパッケージ又は自動車関連部品
に使用されている。2. Description of the Related Art In recent years, with the remarkable progress of petrochemistry and organic polymer chemistry, synthetic resins have become very familiar in our living space. For example, polyethylene, polypropylene, etc. are used for various packaging materials, carpets in cars and homes, interior materials such as linings, and polystyrene, AS
BACKGROUND ART Resins, ABS resins, polyamides, polycarbonates, epoxy resins, and the like are used for housings of TVs, personal computers and other electric products, electronic component packages, or automobile-related components.
【0003】上記用途に用いられた樹脂成形体は、使用後一
部リサイクルが行われているが、大半は未だ焼却処分や
埋立て処分されているのが実状である。これら樹脂を単
独にまたは他の廃棄物と共に焼却処分する場合には塩化
水素ガス、一酸化炭素ガス、ダイオキシン等が発生する
場合があり、焼却処理後の残灰を埋め立て処理する場合
には残灰中に含まれる微量重金属が埋め立て地で雨水等
に溶解し漏洩する問題があることが知られている。[0003] The resin molded products used for the above applications are partially recycled after use, but most of them are still incinerated or landfilled. When these resins are incinerated alone or together with other waste, hydrogen chloride gas, carbon monoxide gas, dioxin, etc. may be generated. It is known that a trace amount of heavy metal contained therein has a problem of dissolving and leaking in rainwater or the like at a landfill.
【0004】このような問題点に対して、水酸化アルミニウ
ムを用いた熱可塑性樹脂製袋（特開平９−３２３７３５
号公報）が提案されている。かかる熱可塑性樹脂製袋を
他のゴミとともに焼却処理する場合、焼却炉内の異常温
度上昇を防止できること、排ガス中の塩素ガス等有害ガ
スを抑制できること、また焼却残灰を埋め立てする場合
にクロム等重金属イオンの漏出を防止できることが知ら
れている。[0004] In order to solve such a problem, a thermoplastic resin bag using aluminum hydroxide (Japanese Patent Laid-Open No. 9-323735).
Publication). When such a thermoplastic resin bag is incinerated with other garbage, it is possible to prevent abnormal temperature rise in the incinerator, to suppress harmful gases such as chlorine gas in exhaust gas, and to use chromium etc. It is known that leakage of heavy metal ions can be prevented.
【0005】焼却処理に際し、前記熱可塑性樹脂製袋を適用
する場合には、塩素ガス等の有害ガスの発生をある程度
抑制する効果を有するものの、ＣＯガス等の発生を十分
に抑制することは困難であった。[0005] When the thermoplastic resin bag is used in the incineration treatment, although it has an effect of suppressing the generation of harmful gases such as chlorine gas to some extent, it is difficult to sufficiently suppress the generation of CO gas and the like. Met.
【0006】他方、成形時において水酸化アルミニウムに起
因する発泡を抑制する目的で、酸化カルシウム等の吸湿
剤を混合することは公知である。さらに、特開昭５１−
４４１４５号公報には、水酸化アルミニウム２０〜９０
重量％と残部がオレフィン系樹脂等からなる混合物と酸
化カルシウムとを混合してなる熱可塑性樹脂組成物が記
載されている。[0006] On the other hand, it is known to mix a moisture absorbent such as calcium oxide for the purpose of suppressing foaming caused by aluminum hydroxide during molding. Further, JP-A-51-
No. 44145 discloses aluminum hydroxide 20 to 90.
A thermoplastic resin composition comprising a mixture of calcium oxide and a mixture consisting of an olefin-based resin and the like with the balance being weight% is described.
【0007】しかしながら、前記の熱可塑性樹脂組成物を用
いて成形した場合には、発泡を抑制することは可能とな
るものの、高い衝撃強度を有する樹脂板等の成形体を得
ることができなかった。However, when molded using the thermoplastic resin composition, foaming can be suppressed, but a molded article such as a resin plate having high impact strength cannot be obtained. .
【0008】[0008]
【発明が解決しようとする課題】本発明の課題は、熱可
塑性樹脂、水酸化アルミニウム及び吸湿剤を混合、成形
してなる熱可塑性樹脂成形体の製造法において、混合、
成形時に水酸化アルミニウムに起因する発泡を防止し、
高い衝撃強度を有する熱可塑性樹脂成形体であって、ゴ
ミとともに焼却処理する場合に排ガス中のＣＯガス濃度
を低減することが可能な熱可塑性樹脂成形体の製造法を
提供するにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a method for producing a thermoplastic resin molded article obtained by mixing and molding a thermoplastic resin, aluminum hydroxide and a moisture absorbent.
Prevent foaming caused by aluminum hydroxide during molding,
It is an object of the present invention to provide a method for producing a thermoplastic resin molded article having high impact strength and capable of reducing the concentration of CO gas in exhaust gas when incinerated with dust.
【0009】[0009]
【課題を解決するための手段】かかる事情下に鑑み、発
明者等は鋭意研究を進めた結果、水酸化アルミニウム及
び吸湿剤を混合、成形してなる熱可塑性樹脂成形体の製
造法において、特定粒子径の水酸化アルミニウムを特定
量混合する場合には、かかる課題を解決し得ることを見
出し本発明を完成する至った。In view of such circumstances, the present inventors have conducted intensive studies and as a result, have found that a method for producing a thermoplastic resin molded article obtained by mixing and molding aluminum hydroxide and a moisture absorbent is specified. The inventors have found that such a problem can be solved when a specific amount of aluminum hydroxide having a particle diameter is mixed, and have completed the present invention.
【0010】すなわち、本発明は、熱可塑性樹脂、水酸化ア
ルミニウム及び吸湿剤を混合、成形してなる熱可塑性樹
脂成形体の製造法において、前記水酸化アルミニウムの
累積９０％径が３０μｍ以下であり、かつその混合量が
熱可塑性樹脂成形体に対して０．１重量％〜１５重量％
であることを特徴とする熱可塑性樹脂成形体の製造法を
提供するにある。That is, the present invention relates to a method for producing a thermoplastic resin molded article obtained by mixing and molding a thermoplastic resin, aluminum hydroxide and a moisture absorbent, wherein the cumulative 90% diameter of the aluminum hydroxide is 30 μm or less. And the mixing amount thereof is from 0.1% by weight to 15% by weight based on the thermoplastic resin molded article.
It is another object of the present invention to provide a method for producing a thermoplastic resin molded article.
【0011】[0011]
【発明の実施の形態】以下に本発明を詳細に述べる。本
発明は、熱可塑性樹脂、水酸化アルミニウム及び吸湿剤
を混合、成形してなる熱可塑性樹脂成形体の製造法の改
良法である。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail. The present invention is an improved method for producing a thermoplastic resin molded article obtained by mixing and molding a thermoplastic resin, aluminum hydroxide, and a moisture absorbent.
【0012】本発明に用いる水酸化アルミニウムは、累積９
０％径が３０μｍ以下、好ましくは１０μｍ以下であ
る。前記水酸化アルミニウムの累積９０％径が３０μｍ
より大きい場合、焼却時に排ガス中のＣＯ濃度を低減す
る効果が低い。前記水酸化アルミニウムとしては、例え
ばギブサイト、バイヤライト、ベーマイト、ノルトスト
ランダイト等が挙げられ、この中でもギブサイトはバイ
ヤー法によりアルミナの原料として大量に生産されてい
るため容易に安価に入手できることから好適である。The aluminum hydroxide used in the present invention has a cumulative amount of 9
The 0% diameter is 30 μm or less, preferably 10 μm or less. The cumulative 90% diameter of the aluminum hydroxide is 30 μm
If it is larger, the effect of reducing the CO concentration in the exhaust gas during incineration is low. As the aluminum hydroxide, for example, gibbsite, bayerite, boehmite, nortostrandite, etc. are listed, and among them, gibbsite is preferred because it is easily produced at low cost because it is produced in large quantities as a raw material of alumina by the Bayer method. is there.
【0013】前記水酸化アルミニウムの混合量は、熱可塑性
樹脂成形体に対して０．１重量％〜１５重量％、好まし
くは１重量％〜１０重量％である。混合量が０．１重量
％に満たない場合は、得られる熱可塑性樹脂成形体を焼
却した時に排ガス中のＣＯ濃度を低減する十分な効果が
得られない。また、１５重量％を超える場合は、高い衝
撃強度を有する熱可塑性樹脂成形体が得られない。The mixing amount of the aluminum hydroxide is 0.1% by weight to 15% by weight, preferably 1% by weight to 10% by weight based on the thermoplastic resin molded article. When the mixing amount is less than 0.1% by weight, a sufficient effect of reducing the CO concentration in the exhaust gas when the obtained thermoplastic resin molded article is incinerated cannot be obtained. If it exceeds 15% by weight, a thermoplastic resin molded article having high impact strength cannot be obtained.
【0014】本発明に用いる吸湿剤は、例えば、五酸化リ
ン、過塩素酸マグネシウム、無水硫酸カルシウム、酸化
マグネシウム、酸化カルシウム及び無水塩化カルシウム
等からなる群より選ばれた少なくとも１種が挙げられ、
就中、酸化カルシウムの適用が推奨される。The hygroscopic agent used in the present invention includes, for example, at least one selected from the group consisting of phosphorus pentoxide, magnesium perchlorate, anhydrous calcium sulfate, magnesium oxide, calcium oxide and anhydrous calcium chloride.
Above all, the application of calcium oxide is recommended.
【0015】前記吸湿剤は３０μｍ以上の粒子を実質的に含
有しないものが望ましく、具体例としては３０μｍ以上
の粒子の含有量が１重量％以下である。３０μｍ以上の
粒子は、得られる熱可塑性樹脂成形体の表面の平滑性を
低下させる原因となる場合がある。尚、３０μｍ以上の
粒子の存在は、例えばＳＥＭ観察で確認する方法、粒度
分布測定装置を用いる方法等で行えばよい。The desiccant desirably does not substantially contain particles having a size of 30 μm or more. As a specific example, the content of the particles having a size of 30 μm or more is 1% by weight or less. Particles having a size of 30 μm or more may cause a decrease in the smoothness of the surface of the obtained thermoplastic resin molded article. The presence of particles having a size of 30 μm or more may be determined, for example, by a method of confirming by SEM observation, a method of using a particle size distribution measuring device, or the like.
【0016】また、前記吸湿剤は、通常、その吸湿速度が約
３重量％／ｈｒ以上であるものが好適に用いられる。吸
湿速度は温度２３℃、湿度５０％の状態に保った恒温恒
湿庫に被検体を保管し重量の経時変化を測定、測定開始
時の重量に対する増加量を百分率で表される。吸湿速度
が約３重量％／ｈｒ未満の場合、混合、成形時、水酸化
アルミニウムに起因する発泡を十分に抑制することがで
きず、発泡痕のない熱可塑性樹脂成形体を得ることが困
難になる可能性がある。更に、前記吸湿剤の混合量は、
通常、約０．１重量％〜約５重量％、好ましくは約０．
５重量％〜約２重量％である。混合量が約５重量％より
多い場合は、得られる熱可塑性樹脂成形体の外観の性状
が低下する傾向にあり、コスト高となる場合がある。ま
た０．１重量％未満では混合、成形時に水酸化アルミニ
ウムに起因する発泡の発生を十分に防止できないことが
ある。[0016] As the above-mentioned moisture absorbing agent, those having a moisture absorbing rate of about 3% by weight / hr or more are preferably used. The moisture absorption rate is obtained by storing a subject in a thermo-hygrostat kept at a temperature of 23 ° C. and a humidity of 50%, measuring the change over time of the weight, and expressing the increase with respect to the weight at the start of the measurement in percentage. When the moisture absorption rate is less than about 3% by weight / hr, foaming due to aluminum hydroxide cannot be sufficiently suppressed during mixing and molding, and it is difficult to obtain a thermoplastic resin molded article having no foaming marks. Could be. Furthermore, the mixing amount of the moisture absorbent is
Usually, from about 0.1% to about 5% by weight, preferably about 0.
5% to about 2% by weight. When the mixing amount is more than about 5% by weight, the properties of the appearance of the obtained thermoplastic resin molded article tend to decrease, which may increase the cost. If the amount is less than 0.1% by weight, the occurrence of foaming due to aluminum hydroxide during mixing and molding may not be sufficiently prevented.
【0017】本発明に用いる熱可塑性樹脂は、例えば、エチ
レン、プロピレン、スチレン、酢酸ビニル、アクリロニ
トリル、ブタジエン、ビニルアルコール、アクリル及び
アクリル誘導体からなる群より選ばれた少なくとも１種
のホモポリマー若しくはコポリマー又はポリアミドやポ
リエチレンテレフタレートに代表される熱可塑性ポリエ
ステル等である。就中、エチレン、プロピレンからなる
群より選ばれた少なくとも１種のホモポリマー又はコポ
リマーからなる熱可塑性樹脂が好適に用いられる。[0017] The thermoplastic resin used in the present invention is, for example, at least one homopolymer or copolymer selected from the group consisting of ethylene, propylene, styrene, vinyl acetate, acrylonitrile, butadiene, vinyl alcohol, acryl and acrylic derivatives. Thermoplastic polyester represented by polyamide and polyethylene terephthalate. In particular, a thermoplastic resin composed of at least one homopolymer or copolymer selected from the group consisting of ethylene and propylene is preferably used.
【0018】本発明の熱可塑性樹脂成形体の製造法において
は、例えば、吸湿剤と熱可塑性樹脂とを混練して混合物
を得る第１工程と、得られた混合物、水酸化アルミニウ
ム及び熱可塑性樹脂を混合、成形してなる第２工程とに
分けて行うことが推奨される。In the method for producing a thermoplastic resin molded article of the present invention, for example, a first step of kneading a moisture absorbent and a thermoplastic resin to obtain a mixture, the obtained mixture, aluminum hydroxide and a thermoplastic resin Is recommended to be performed separately from the second step of mixing and molding.
【0019】前記第１工程は、例えば、加圧ニーダー、バン
バリーミキサー、１軸押出機及び２軸押出機等からなる
群より選ばれた１種の装置を用い、吸湿剤約１００重量
〜約５００重量部とポリエチレン１００重量部とを加圧
ニーダーを用いて、混練温度約１３０℃〜約２００℃、
混練時間約５分〜約３０分の条件で混練すればよい。ま
た、第１工程で得られた混合物をペレット化する場合に
は混合物と水とが接触することなく切断・冷却する方
式、例えばホットカット方式、溶融粉砕方式等で行うこ
とが推奨される。In the first step, for example, a device selected from the group consisting of a pressure kneader, a Banbury mixer, a single-screw extruder, and a twin-screw extruder is used. Parts by weight and 100 parts by weight of polyethylene using a pressure kneader, kneading temperature about 130 ° C to about 200 ° C,
Kneading may be performed under the conditions of a kneading time of about 5 minutes to about 30 minutes. When the mixture obtained in the first step is pelletized, it is recommended that the mixture be cut and cooled without contact between the mixture and water, such as a hot cut method or a melt pulverization method.
【0020】前記第２工程は、例えば、スクリーンを備え
た、射出成形機、押出成形機及びブロー成形機等からな
る群より選ばれた１種を用いて混合、成形すればよい。
前記押出成形機としては、Ｔダイ、リングダイ、ストラ
ンドダイ、パイプダイ、その他異形成形用ダイ等を取り
付けた押出成形機等が挙げられる。更には、前記第２工
程で得られた成形体（板、シート、コンパウンド等）を
真空成形機や圧縮成形機等を用いて加工してもよい。In the second step, for example, mixing and molding may be performed using one selected from the group consisting of an injection molding machine, an extrusion molding machine, a blow molding machine, and the like, having a screen.
Examples of the extruder include an extruder equipped with a T die, a ring die, a strand die, a pipe die, and a die for forming a different shape. Further, the molded article (plate, sheet, compound, etc.) obtained in the second step may be processed using a vacuum molding machine, a compression molding machine, or the like.
【0021】前記第２工程で混合する水酸化アルミニウム
は、予め熱可塑性樹脂と混練して水酸化アルミニウム高
濃度含有マスターバッチ化してもよい。前記混練を行う
に際しては、例えば、水酸化アルミニウム約１００重量
部〜約５００重量部とポリエチレン１００重量部とを加
圧ニーダー、バンバリーミキサー、１軸押出機及び２軸
押出機等からなる群より選ばれた１種を用いて、約１３
０℃〜約２００℃、約５分〜約３０分の条件で混練すれ
ばよい。更に、混練して得られた水酸化アルミニウム含
有マスターバッチをペレット化する場合には、例えばホ
ットカット方式、溶融粉砕方式、ストランドカット方
式、アンダーウォーターカット方式等で行えばよい。The aluminum hydroxide to be mixed in the second step may be kneaded with a thermoplastic resin in advance to form a master batch containing a high concentration of aluminum hydroxide. In performing the kneading, for example, about 100 parts by weight to about 500 parts by weight of aluminum hydroxide and 100 parts by weight of polyethylene are selected from the group consisting of a pressure kneader, a Banbury mixer, a single screw extruder, a twin screw extruder, and the like. Approximately 13
Kneading may be performed at 0 ° C. to about 200 ° C. for about 5 minutes to about 30 minutes. Furthermore, when the aluminum hydroxide-containing masterbatch obtained by kneading is pelletized, for example, a hot cut method, a melt pulverization method, a strand cut method, an underwater cut method, or the like may be used.
【0022】また、本発明の効果を損なわない範囲で例えば
トリクレジルホスフェート、トリフェニルホスフェート
に代表されるリン酸エステル若しくは赤リン等のリン系
難燃剤、硼素系難燃剤、錫化合物又は酸化銅化合物等の
添加剤を混合してもよい。これらを添加することによ
り、高い難燃性等を付与することが可能となる。その他
の添加剤としては各種顔料、導電性若しくは紫外線吸収
等の各種機能性フィラー、脂肪酸金属塩若しくは各種ワ
ックス等の加工助剤等が挙げられる。In addition, phosphorus-based flame retardants such as phosphoric acid esters represented by tricresyl phosphate and triphenyl phosphate or red phosphorus, boron-based flame retardants, tin compounds and copper oxides, as long as the effects of the present invention are not impaired. Additives such as compounds may be mixed. By adding these, it is possible to impart high flame retardancy and the like. Examples of other additives include various pigments, various functional fillers such as conductivity or ultraviolet absorption, and processing aids such as fatty acid metal salts and various waxes.
【0023】本発明の製造法で得られた熱可塑性樹脂成形体
は、通常、家電・電気部品、容器、梱包用品、自動車等
運輸機械部品、事務用品、玩具、建材、スポーツ用品、
農業用品、日用品を始めとし工業資材、医療器具、一般
機械・精密機器部品に至るまで各種用途に用いられる。
家電・電気部品を例示すれば各種製品のハウジングやカ
バー、キャスター、フレーム等の構造部品、ギヤやコネ
クター等の精密部品、スイッチ類の小型部品、電線被覆
材等電気絶縁体、照明具クリアカバー、容器としては飲
料ポトル、什器、弁当箱、食品トレー、ストレッチフィ
ルム、食品包装容器、タッパ、精密機器や貴重品等の保
管容器、医薬、化粧品、各種薬品の容器、保冷容器、工
具箱、衣料ケース、小物入れ、ポリ袋、パッキンなど、
梱包用品としてはコンテナ、通函、木箱代替箱、魚介類
・海産物用ケース、荷造り用ひもまたはテープ、包装用
シート、カバー、衝撃緩衝材、ネット、飲料容器梱包用
コンテナや集合キャップなど、自動車等運輸機械部品と
しては、防音材、断熱材、カーペットや天井材などの内
装材、クッション材、ダッシュボード、エンジンカバ
ー、ダクト、バンパーやホイールキャップ等外装材、カ
ーブミラー、電気部品、船体部品、ブイ等、事務用品で
は筆記用具、バインダー、整理用トレー、クリップ、ネ
ームタグ、ペンケース、筆記用具立て、フレーム、立体
地図、下敷き、定規、消しゴム、掲示板、整理用ファイ
ル、玩具・レジャー用品しては、テントや携帯用椅子等
のアウトドア用品、釣り具の部品、人形やおもちゃの部
品、浮き等救命器具、模型およびその部品、建材として
は床材、カーペット、断熱材、壁材や壁紙、天井材等内
装材、外壁材、看板、コンクリート打設時の壁材、簡易
建築物の壁材、ベニア板・合板の代替板、建築現場囲い
材、障子板、間仕切り、畳中芯、床下断熱材保持板等、
椅子やテーブルなどの調度品、スポーツ用品としては各
種ラケット、ボール、シャトル、シューズ、ヘルメッ
ト、プロテクター、農業用品ではトンネルハウス用フィ
ルム、コンテナ、吸熱フィルム、散水ホース、肥料や農
薬梱包用ポリ袋、日用品では箸、スプーン、フォーク等
のテーブルウエア、食器類、調理用具、模造装飾品、造
花、くし、ごみ箱、ごみ袋、ポリ袋、ファッションバッ
グ、レジ袋、商品の外装袋、カード、各種道具の柄、洗
濯バサミ、布団たたき、ハエたたき、うちわの骨、植木
鉢等園芸用品、椅子・机の中芯、家具の背板、のみ捕り
首輪等ペット用品、リール、眼鏡部品、鞄部品、靴、衛
生用品、滑り止めゴム、あたりゴム、フック、取手、水
槽、手袋、かご、ピック、工業資材としては種々のサイ
ズのシートやフィルム、配管、パイプ、ホース、バル
ブ、汗顔、展示棚、パレットの側面版、トレー、倉庫保
管箱、養生板、ベルトコンベアー用敷板、仕切板、スリ
ップシート、運送用当て板、組仕切り板、緩衝材、テー
プ、製品外装袋、ネジ・釘チェーン、医療器具としては
注射器のシリンダー、血液バッグ、ホース、パイプ、一
般機器・精密機器部品として各種産業機器部品、時計部
品、ギヤ等の精密部品が挙げられる。[0023] The thermoplastic resin molded article obtained by the production method of the present invention is usually used for home appliances and electric parts, containers, packing supplies, transportation machine parts such as automobiles, office supplies, toys, building materials, sports goods,
It is used for various purposes ranging from agricultural supplies, daily necessities, industrial materials, medical instruments, general machinery and precision equipment parts.
Examples of home appliances and electric parts include housings and covers for various products, structural parts such as casters and frames, precision parts such as gears and connectors, small parts such as switches, electric insulators such as wire covering materials, lighting equipment clear covers, Containers include beverage pottles, furniture, lunch boxes, food trays, stretch films, food packaging containers, tappers, storage containers for precision instruments and valuables, pharmaceuticals, cosmetics, containers for various chemicals, cool containers, tool boxes, and clothing cases. , Accessory case, plastic bag, packing, etc.
Automobiles such as containers, containers, wooden boxes, boxes for seafood and marine products, strings or tapes for packing, packing sheets, covers, shock-absorbing materials, nets, containers and collective caps for packing beverage containers, etc. Transportation machinery parts include soundproofing materials, heat insulating materials, interior materials such as carpets and ceiling materials, cushioning materials, dashboards, engine covers, ducts, exterior materials such as bumpers and wheel caps, curve mirrors, electrical components, hull components, For office supplies such as buoys, writing utensils, binders, organizing trays, clips, name tags, pen cases, writing utensils, frames, 3D maps, underlays, rulers, erasers, bulletin boards, organization files, toys and leisure goods Outdoor equipment such as tents and portable chairs, parts for fishing gear, parts for dolls and toys, life-saving equipment such as floats Models and their parts, building materials include flooring materials, carpets, heat insulating materials, wall materials and wallpapers, interior materials such as ceiling materials, exterior wall materials, signboards, wall materials for concrete casting, wall materials for simple buildings, veneer boards, Alternative board of plywood, construction site enclosure, shoji board, partition, tatami core, underfloor insulation holding board, etc.
Furniture such as chairs and tables, various rackets, balls, shuttles, shoes, helmets, protectors for sports goods, tunnel house films, containers, heat absorbing films, watering hoses, plastic bags for packing fertilizers and pesticides, daily goods for agricultural goods In tableware such as chopsticks, spoons, forks, tableware, cooking utensils, imitation ornaments, artificial flowers, combs, trash boxes, garbage bags, plastic bags, fashion bags, shopping bags, product outer bags, cards, and patterns of various tools , Laundry scissors, futon slap, fly slap, fan bones, garden pots such as flower pots, cores of chairs and desks, backboards of furniture, pet supplies such as catching collars, reels, eyeglass parts, bag parts, shoes, sanitary goods, Anti-slip rubber, rubber, hook, handle, aquarium, glove, basket, pick, sheets and fills of various sizes as industrial materials , Plumbing, pipes, hoses, valves, sweat faces, display shelves, side plates for pallets, trays, warehouse storage boxes, curing boards, flooring for belt conveyors, partitions, slip sheets, transport patches, assembled partitions, cushioning materials , Tapes, product outer bags, screw and nail chains, medical equipment include syringe cylinders, blood bags, hoses, pipes, general equipment and precision equipment parts, various industrial equipment parts, watch parts, gears and other precision parts. .
【0024】また、本発明の製造法により得られる熱可塑性
樹脂成形体は、他のゴミとともに焼却処理する場合、焼
却炉内での高温条件で水酸化アルミニウムが結晶水を放
出すると共に高比表面積を有する活性アルミナ（遷移ア
ルミナ）に転移する。この活性アルミナは焼却炉内で排
ガス中のＣＯ濃度を低減するだけでなく、ダイオキシン
前駆体の分解でダイオキシン類の発生を抑制し、燃焼排
ガスに含有されるＨＣｌ、ダイオキシン等有毒成分を吸
着する効果を有する。更に焼却残灰及び／又は飛灰が埋
め立て処分された場合には、灰中に含有される重金属イ
オンを吸着し漏洩を防止する等の効果をも有する。Further, when the thermoplastic resin molded article obtained by the production method of the present invention is incinerated together with other refuse, aluminum hydroxide releases water of crystallization at a high temperature in an incinerator and has a high specific surface area. To activated alumina (transition alumina) having This activated alumina not only reduces the CO concentration in the exhaust gas in the incinerator, but also suppresses the generation of dioxins by decomposition of the dioxin precursor, and adsorbs toxic components such as HCl and dioxin contained in the combustion exhaust gas. Having. Furthermore, when the incineration residual ash and / or fly ash is disposed of by landfill, it also has an effect of adsorbing heavy metal ions contained in the ash and preventing leakage.
【0025】[0025]
【実施例】以下、本発明を実施例によりさらに詳細に説
明するが、本発明は以下の実施例により制限される物で
はない。尚、累積９０重量％径、吸湿速度及び衝撃強度
の測定、発泡痕の評価は以下の方法で行った。 累積９０重量％径（μｍ）： レーザー散乱式粒度分布
計〔リード アンド ノースラップ（ＬＥＥＤ＆ＮＯＲ
ＴＨＲＵＰ）社製マイクロトラック〕により、９０重量
％径を測定した。 吸湿速度（重量％／ｈｒ）： 温度２３℃、湿度５０％
の状態に保った恒温恒湿庫に被検体を保管し、重量の経
時変化を測定した。測定開始時から１時間経過後迄の重
量の増加量を百分率で表した。 衝撃強度（ｋｇ）： ＪＩＳ Ｋ−７２１１に準拠し
た、ヂュポン衝撃強度測定法により測定した。 発泡痕の評価（−）： 熱可塑性樹脂成形体中に存在す
る気泡の有無を測定した。EXAMPLES Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited to the following Examples. The measurement of the cumulative 90% by weight diameter, the moisture absorption rate and the impact strength, and the evaluation of the foaming marks were performed by the following methods. Cumulative 90% by weight diameter (μm): laser scattering particle size distribution analyzer [Lead & North Wrap (LEED & NOR)
(THRUP) manufactured by Microtrac]. Moisture absorption rate (wt% / hr): temperature 23 ° C, humidity 50%
The specimen was stored in a thermo-hygrostat kept in the state described above, and the time-dependent change in weight was measured. The amount of increase in weight from the start of the measurement to the lapse of one hour was expressed in percentage. Impact strength (kg): Measured by a DuPont impact strength measurement method in accordance with JIS K-7211. Evaluation of foaming marks (-): The presence or absence of bubbles existing in the thermoplastic resin molded article was measured.
【0026】実施例１ メルトフローレート２．０ｇ／１０ｍｉｎ、密度０．９
２ｇ／ｃｍ3である直鎖状低密度ポリエチレン１００重
量部と、累積９０重量％径６．５μｍであり、平均粒子
径３μｍである水酸化アルミニウム２３３重量部とを加
圧ニーダーを用いて１６０℃、１５分の条件で混練して
水酸化アルミニウム７０％含有マスターバッチを得た。
さらに樹脂をメルトフローレート８ｇ／１０ｍｉｎ、密
度０．９ｇ／ｃｍ3であるポリプロピレン１００重量
部、水酸化アルミニウムを吸湿速度４重量％／ｈｒであ
り、３０μｍ以上の粒子を実質的に含有しない酸化カル
シウム１８６重量部に変えた以外は同様にして酸化カル
シウム混合物を得た。Example 1 Melt flow rate: 2.0 g / 10 min, density: 0.9
100 g of linear low-density polyethylene of 2 g / cm 3 and 233 parts of aluminum hydroxide having a cumulative 90 wt% diameter of 6.5 μm and an average particle diameter of 3 μm were heated at 160 ° C. using a pressure kneader. For 15 minutes to obtain a master batch containing 70% of aluminum hydroxide.
Calcium oxide having a melt flow rate of 8 g / 10 min, a density of 0.9 g / cm 3 , 100 parts by weight of polypropylene, an aluminum hydroxide absorption rate of 4% by weight / hr, and substantially no particles of 30 μm or more A calcium oxide mixture was obtained in the same manner except that the amount was changed to 186 parts by weight.
【0027】次いで、メルトフローレート１ｇ／１０ｍｉ
ｎ、密度０．９１ｇ／ｃｍ3のポリプロピレン１００重
量部、前記水酸化アルミニウム７０％含有マスターバッ
チ７．６重量部（水酸化アルミニウム混合量は熱可塑性
樹脂成形体に対して５重量％である。）及び前記酸化カ
ルシウム混合物１．１重量部を混合し、２０５℃でスク
リーンを備えた押出成形機を用いて成形して、厚さ５ｍ
ｍ、ライナー厚さ０．４ｍｍ、リブ間隔０．４ｍｍ、リ
ブ厚さ０．２５ｍｍの中空合成樹脂板を得た。スクリー
ンの目詰りは発生せず、得られた中空合成樹脂板は衝撃
強度が３７ｋｇ・ｃｍであり、発泡痕は見られなかったNext, the melt flow rate is 1 g / 10 mi.
n, 100 parts by weight of polypropylene having a density of 0.91 g / cm 3 , and 7.6 parts by weight of a master batch containing 70% of aluminum hydroxide (the mixing amount of aluminum hydroxide is 5% by weight with respect to the thermoplastic resin molded article). ) And 1.1 parts by weight of the above calcium oxide mixture, and molded at 205 ° C. using an extruder equipped with a screen to have a thickness of 5 m.
m, a liner thickness of 0.4 mm, a rib interval of 0.4 mm, and a rib thickness of 0.25 mm were obtained. No screen clogging occurred, the obtained hollow synthetic resin plate had an impact strength of 37 kg · cm, and no foaming marks were observed.
【0028】比較例１ 実施例１において、熱可塑性樹脂成形体に対する水酸化
アルミニウム混合量５重量％を３０重量％に変えた以外
は同様にして、厚さ５ｍｍ、ライナー厚さ０．４ｍｍ、
リブ間隔０．４ｍｍ、リブ厚さ０．２５ｍｍの中空合成
樹脂板を得た。スクリーンの目詰りは発生せず、得られ
た中空合成樹脂板は衝撃強度が２７ｋｇ・ｃｍであっ
た。Comparative Example 1 In Example 1, the thickness was 5 mm, the liner thickness was 0.4 mm, and the amount of aluminum hydroxide was changed to 30% by weight.
A hollow synthetic resin plate having a rib interval of 0.4 mm and a rib thickness of 0.25 mm was obtained. No screen clogging occurred, and the obtained hollow synthetic resin plate had an impact strength of 27 kg · cm.
【0029】[0029]
【発明の効果】以上詳述した如く本発明は、混合、成形
時に水酸化アルミニウムに起因する発泡を防止し、高い
衝撃強度を有する熱可塑性樹脂成形体であって、ゴミと
ともに焼却処理する場合に排ガス中のＣＯガス濃度を低
減することが可能な熱可塑性樹脂成形体の製造法を提供
するものであり、その工業的価値は大である。As described in detail above, the present invention is a thermoplastic resin molded article having a high impact strength, which prevents foaming caused by aluminum hydroxide during mixing and molding, and is suitable for incineration with dust. The present invention provides a method for producing a thermoplastic resin molded article capable of reducing the concentration of CO gas in exhaust gas, and its industrial value is great.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ０８Ｌ 23/12 Ｃ０８Ｌ 23/12 23/16 23/16 (72)発明者 中田 博紀 大阪府高槻市塚原２丁目10番１号 住友化 学工業株式会社内 Ｆターム(参考） 3E064 BA26 BA30 BA37 BA39 BA40 BA54 BA60 BC06 BC15 EA07 EA18 EA22 EA30 FA01 4J002 AA011 AC031 BB031 BB121 BB151 BC031 BD041 BE021 BF021 BG011 BG021 BG031 BG041 BG051 BG061 BG101 CF061 CL001 DD067 DE077 DE087 DE146 DE187 DG057 DH017 FD207 GB00 GC00 GG00 GL00 GN00 GQ00 GQ01──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) C08L 23/12 C08L 23/12 23/16 23/16 (72) Inventor Hiroki Nakata 2 Tsukahara, Takatsuki-shi, Osaka Sumitomo Kagaku Kogyo Co., Ltd. F term (reference) CL001 DD067 DE077 DE087 DE146 DE187 DG057 DH017 FD207 GB00 GC00 GG00 GL00 GN00 GQ00 GQ01
Claims (4)
吸湿剤を混合、成形してなる熱可塑性樹脂成形体の製造
法において、前記水酸化アルミニウムの累積９０％径が
３０μｍ以下であり、かつその混合量が熱可塑性樹脂成
形体に対して０．１重量％〜１５重量％であることを特
徴とする熱可塑性樹脂成形体の製造法。1. A method for producing a thermoplastic resin molded article obtained by mixing and molding a thermoplastic resin, aluminum hydroxide and a hygroscopic agent, wherein the cumulative 90% diameter of the aluminum hydroxide is 30 μm or less, and A method for producing a thermoplastic resin article, wherein the amount is 0.1% by weight to 15% by weight based on the thermoplastic resin article.
を特徴とする請求項１記載の熱可塑性樹脂成形体の製造
法。2. The method for producing a thermoplastic resin article according to claim 1, wherein the hygroscopic agent is calcium oxide.
的に含有しないことを特徴とする請求項１又は２記載の
熱可塑性樹脂成形体の製造法。3. The method for producing a thermoplastic resin article according to claim 1, wherein the desiccant does not substantially contain particles having a size of 30 μm or more.
ンからなる群より選ばれた少なくとも１種のホモポリマ
ー又はコポリマーであることを特徴とする請求項１〜２
のいずれか１項に記載の熱可塑性樹脂成形体の製造法。4. The thermoplastic resin according to claim 1, wherein the thermoplastic resin is at least one homopolymer or copolymer selected from the group consisting of ethylene and propylene.
The method for producing a thermoplastic resin article according to any one of the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09299599A JP3829528B2 (en) | 1999-03-31 | 1999-03-31 | Manufacturing method of thermoplastic resin molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09299599A JP3829528B2 (en) | 1999-03-31 | 1999-03-31 | Manufacturing method of thermoplastic resin molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000281909A true JP2000281909A (en) | 2000-10-10 |
| JP3829528B2 JP3829528B2 (en) | 2006-10-04 |
Family
ID=14069963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09299599A Expired - Fee Related JP3829528B2 (en) | 1999-03-31 | 1999-03-31 | Manufacturing method of thermoplastic resin molding |
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| Country | Link |
|---|---|
| JP (1) | JP3829528B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001088041A1 (en) * | 2000-05-17 | 2001-11-22 | Dynic Corporation | Moisture absorbing formed article |
| KR20020084773A (en) * | 2001-05-03 | 2002-11-11 | 주식회사 사나테크 | Dioxin Free Thermoplastic Resin Composition |
| JP2003082170A (en) * | 2001-09-14 | 2003-03-19 | Sumitomo Chem Co Ltd | Olefin polymer composition |
| CN101845162A (en) * | 2009-05-28 | 2010-09-29 | 深圳市中京科林环境材料有限公司 | Polyolefin formed body, method for reducing carbon dioxide generation in burning polyolefin formed body, and master batch |
-
1999
- 1999-03-31 JP JP09299599A patent/JP3829528B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001088041A1 (en) * | 2000-05-17 | 2001-11-22 | Dynic Corporation | Moisture absorbing formed article |
| US6673436B2 (en) | 2000-05-17 | 2004-01-06 | Dynic Corporation | Moisture absorbing formed article |
| JP3885150B2 (en) * | 2000-05-17 | 2007-02-21 | ダイニック株式会社 | Hygroscopic molded body |
| KR20020084773A (en) * | 2001-05-03 | 2002-11-11 | 주식회사 사나테크 | Dioxin Free Thermoplastic Resin Composition |
| JP2003082170A (en) * | 2001-09-14 | 2003-03-19 | Sumitomo Chem Co Ltd | Olefin polymer composition |
| CN101845162A (en) * | 2009-05-28 | 2010-09-29 | 深圳市中京科林环境材料有限公司 | Polyolefin formed body, method for reducing carbon dioxide generation in burning polyolefin formed body, and master batch |
| JP2010275418A (en) * | 2009-05-28 | 2010-12-09 | Chukyo Shoji:Kk | Polyolefin molded product, method for reducing generated amount of carbon dioxide during incineration of polyolefin molded product and master batch |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3829528B2 (en) | 2006-10-04 |
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