JPH06190829A - Reprocessing method of composite of polyvinyl chloride and polypropylene - Google Patents
Reprocessing method of composite of polyvinyl chloride and polypropyleneInfo
- Publication number
- JPH06190829A JPH06190829A JP27311492A JP27311492A JPH06190829A JP H06190829 A JPH06190829 A JP H06190829A JP 27311492 A JP27311492 A JP 27311492A JP 27311492 A JP27311492 A JP 27311492A JP H06190829 A JPH06190829 A JP H06190829A
- Authority
- JP
- Japan
- Prior art keywords
- ethylene
- polypropylene
- polyvinyl chloride
- composite
- weight
- 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.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
(57)【要約】
【構成】 ポリプロピレンとポリ塩化ビニルの複合体を
粉砕し、これをそのまま、或いは該粉砕品１００重量部
に対してエチレン−酢酸ビニル共重合体、エチレン−ア
クリル酸エステル共重合体もしくはエチレン−メタクリ
ル酸エステル又は不飽和カルボン酸もしくはその誘導体
により変成されたポリオレフィン樹脂を１〜２０重量部
を添加して、１８０〜２３０℃の温度で混練する事を特
徴とするポリ塩化ビニルとポリプロピレンの複合体の再
生処理方法。
【効果】 本発明によれば、ポリ塩化ビニルとポリプロ
ピレンの複合体の再生処理において、実施例に見られる
ように高い衝撃強度が得られ、またその他の機械的特性
についても優れた再生物が得られる。(57) [Summary] [Structure] A composite of polypropylene and polyvinyl chloride is crushed and used as it is, or with 100 parts by weight of the crushed product, ethylene-vinyl acetate copolymer and ethylene-acrylic acid ester copolymer. Polyvinyl chloride characterized in that 1 to 20 parts by weight of a polyolefin resin modified with a polymer or an ethylene-methacrylic acid ester or an unsaturated carboxylic acid or a derivative thereof is added and kneaded at a temperature of 180 to 230 ° C. A method for recycling polypropylene composites. [Effects] According to the present invention, in the regeneration treatment of a composite of polyvinyl chloride and polypropylene, a high impact strength can be obtained as seen in Examples, and a regenerated product excellent in other mechanical properties can be obtained. To be
Description
【０００１】[0001]
【産業上の利用分野】本発明は塩化ビニルとポリプロピ
レンの複合体の再生処理方法に関し、詳しくは例えば自
動車用ドアトリム（内装材）等の廃棄物の再生処理方法
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for recycling a composite of vinyl chloride and polypropylene, and more particularly to a method for recycling waste such as automobile door trim (interior material).
【０００２】[0002]
【従来の技術】近年プラスチックの廃棄物は資源の有効
利用及び地球環境保全の観点から、廃棄物の再生利用が
一段と要請されるようになってきた。ところで、塩化ビ
ニルとポリプロピレンの複合体廃棄物、例えば、自動車
用ドアトリム等の再生利用はポリ塩化ビニル層の完全剥
離が困難で、衝撃特性の低下や外観不良の発生を招くと
いう問題点があり、高い機械的特性と高品質の外観が求
められる自動車部分等への再生利用は困難とされてい
た。2. Description of the Related Art Recently, from the viewpoint of effective use of resources and conservation of the global environment, the recycling of plastic waste has been required more and more. By the way, a composite waste of vinyl chloride and polypropylene, for example, in the recycling of automobile door trims, etc., it is difficult to completely peel off the polyvinyl chloride layer, and there is a problem that it causes the deterioration of impact properties and the appearance defect. It has been considered difficult to recycle it into automobile parts that require high mechanical properties and high quality appearance.
【０００３】[0003]
【発明が解決しようとする課題】本発明の目的は、かか
る従来の問題点を解決するためになされたもので、再生
工程が簡単で且つ再生コストの安価なポリ塩化ビニルと
ポリプロピレンの複合体の再生処理方法を提供すること
にある。SUMMARY OF THE INVENTION The object of the present invention is to solve the above-mentioned problems of the prior art, and to provide a composite of polyvinyl chloride and polypropylene which has a simple recycling process and is inexpensive to recycle. It is to provide a reproduction processing method.
【０００４】[0004]
【課題を解決するための手段】本発明はポリ塩化ビニル
とポリプロピレンの複合体の再生処理方法においてポリ
プロピレンとポリ塩化ビニルの複合体を粉砕し、これを
そのまま、或いは該粉砕品１００重量部に対してエチレ
ン−酢酸ビニル共重合体、エチレン−アクリル酸エステ
ル共重合体もしくはエチレン−メタクリル酸エステル、
又は不飽和カルボン酸もしくはその誘導体により変成さ
れたポリオレフィン樹脂を１〜２０重量部を添加して、
１８０〜２３０℃の温度で混練する事を特徴とするポリ
塩化ビニルとポリプロピレンの複合体の再生処理方法に
関する。According to the present invention, in a method for regenerating a composite of polyvinyl chloride and polypropylene, the composite of polypropylene and polyvinyl chloride is pulverized and used as it is or with respect to 100 parts by weight of the pulverized product. Ethylene-vinyl acetate copolymer, ethylene-acrylic acid ester copolymer or ethylene-methacrylic acid ester,
Alternatively, 1 to 20 parts by weight of a polyolefin resin modified with an unsaturated carboxylic acid or a derivative thereof is added,
The present invention relates to a method for regenerating a composite of polyvinyl chloride and polypropylene, which comprises kneading at a temperature of 180 to 230 ° C.
【０００５】また、本発明は例えばポリ塩化ビニル表皮
付ポリプロピレン製の自動車用ドアトリムを回収し、こ
れを再生利用する場合などに好適に適用される。ポリ塩
化ビニル表皮付ポリプロピレン製の自動車用ドアトリム
の素材としては通常、ポリ塩化ビニル表皮／発泡ＰＰ、
ポリ塩化ビニル表皮／フィラー入ＰＰ、ポリ塩化ビニル
表皮／発泡ＰＰ／フィラー入ＰＰ等の積層複合体が用い
られる。該複合体の表皮層を形成する塩化ビニル系樹脂
としては、塩化ビニルの単独重合体のみならず、塩化ビ
ニルと少量（約３０重量％以下）の他の単量体、例えば
エチレン、プロピレンなどのα−オレフィン類、酢酸ビ
ニルなどのビニルエステル類、アクリル類エステルなど
のα，β−不飽和カルボン酸エステル類、アルキルビニ
ルエーテルなどのビニルエーテル類、臭化ビニル、フッ
化ビニルなどの他のハロゲン化ビニル類、スチレン、ア
クリロニトリル、塩化ビニリデンなどのこれ以外のビニ
ル化合物またはビニリデン化合物などとの共重合体が用
いられる。Further, the present invention is preferably applied, for example, to the case where an automobile door trim made of polypropylene with a polyvinyl chloride skin is collected and reused. Polyvinyl chloride skin with polypropylene as the material for automobile door trim is usually polyvinyl chloride skin / foamed PP,
Laminated composites such as polyvinyl chloride skin / filled PP, polyvinyl chloride skin / foamed PP / filled PP are used. The vinyl chloride resin forming the skin layer of the composite includes not only vinyl chloride homopolymer but also vinyl chloride and a small amount (about 30% by weight or less) of other monomers such as ethylene and propylene. α-Olefins, vinyl esters such as vinyl acetate, α, β-unsaturated carboxylic acid esters such as acrylic esters, vinyl ethers such as alkyl vinyl ethers, other vinyl halides such as vinyl bromide and vinyl fluoride. Other than these, copolymers with vinyl compounds such as styrene, acrylonitrile, vinylidene chloride, or vinylidene compounds are used.
【０００６】上記ポリプロピレン（ＰＰと称す。）とし
ては、例えば結晶性を有するアイソタクチックプロピレ
ン単独重合体や、エチレン単位の含有量が少ないエチレ
ンプロピレンランダム共重合体から成る共重合部又はプ
ロピレン単独重合体からなるホモ重合部とエチレン単位
の含有量が比較的多いエチレンプロピレンランダム共重
合体から成る共重合部とから構成された、所謂プロピレ
ンブロック共重合体として市販されている実質上結晶性
のプロピレンとエチレンとのブロック共重合体、或いは
このブロック共重合体における各ホモ重合部又は共重合
部が、更にブテン−１などのα−オレフィンを共重合し
たものから成る実質上結晶性のプロピレン−エチレン−
α−オレフィン共重合体などが挙げられる。Examples of the polypropylene (referred to as PP) include, for example, an isotactic propylene homopolymer having crystallinity, a copolymerization part composed of an ethylene-propylene random copolymer having a low ethylene unit content, or a propylene homopolymer. Substantially crystalline propylene commercially available as a so-called propylene block copolymer, which is composed of a homopolymerized portion composed of a polymer and a copolymerized portion composed of an ethylene-propylene random copolymer having a relatively large content of ethylene units. Block copolymer of ethylene and ethylene, or a substantially crystalline propylene-ethylene, in which each homopolymerization part or copolymerization part of this block copolymer is further copolymerized with α-olefin such as butene-1 −
Examples include α-olefin copolymers.
【０００７】また、上記ＰＰにエチレン系共重合体ゴ
ム、例えばエチレン−プロピレン共重合体ゴム又はエチ
レン−プロピレン−ジエン３元共重合体を少量から主成
分量として配合したものであってもよい。更に、上記ポ
リプロピレンにはタルク，炭酸カルシウム等の無機性フ
ィラー、カーボンブラック等の顔料、酸化防止剤、紫外
線吸収剤、酸化防止剤、着色剤等の各種添加剤を配合す
ることができる。The PP may be blended with an ethylene copolymer rubber, for example, an ethylene-propylene copolymer rubber or an ethylene-propylene-diene terpolymer as a main component in a small amount. Further, the polypropylene may be blended with an inorganic filler such as talc or calcium carbonate, a pigment such as carbon black, an antioxidant, an ultraviolet absorber, an antioxidant, and a colorant.
【０００８】上記発泡ＰＰとしては上記ポリプロピレン
を発泡剤の存在下で発泡成形したものである。上記発泡
剤としては、加熱によってガスを発生する分解型発泡
剤、例えば、アゾジカルボンアミド、ジニトロペンタメ
チレンテトラミン、アゾジイソブチロニトリル等が挙げ
られる。The foamed PP is formed by foaming the polypropylene in the presence of a foaming agent. Examples of the foaming agent include decomposition type foaming agents that generate gas upon heating, such as azodicarbonamide, dinitropentamethylenetetramine, and azodiisobutyronitrile.
【０００９】上記ＰＰの発泡方法としては、例えば押出
成形機や射出成形機を用いて加圧下で加熱溶融したもの
を常圧下に押出し、若しくはフォーミング型中に押出す
か、或いは、成形金型中に射出して発泡させる方法があ
る。その他、密閉容器中で加圧下、加熱溶融した後、加
圧状態を取り去ることにより発泡させても良く、また、
常圧下で加圧溶融発泡させても良い。As a method of foaming the above PP, for example, an extruding machine or an injection molding machine is used to extrude what is heated and melted under normal pressure, or extruded into a forming mold, or into a molding die. There is a method of injecting and foaming. In addition, after heating and melting under pressure in a closed container, the pressure may be removed to foam.
It may be melted and foamed under pressure under normal pressure.
【００１０】なお、発泡成形に際し、発泡剤の気泡調整
剤として、少量のタルク、シリカ等の無機質粉末、亜鉛
華（酸化亜鉛）、リサージ（酸化鉛）等の金属酸化物、
ステアリン酸、ラウリン酸等の脂肪酸又はそれら脂肪酸
の金属塩（例えば、亜鉛、カルシウム、鉛、バリウム等
の塩）を添加しても良い。本発明を具体的に実施する方
法としては、例えば上述のポリ塩化ビニル表皮付ポリプ
ロピレン製自動車用ドアトリムの廃棄物を、まず切断機
又は破砕機（粉砕機）を用いて細片、例えばその最大寸
法部分が２０ｍｍ以下、好ましくは１０ｍｍ以下の大き
さのものを、少なくとも５０％以上、好ましくは７０％
含むものであって、その他の部分も最長寸法部分が３０
ｍｍ以下の大きさの細片にする。In foam molding, a small amount of talc, inorganic powder such as silica, metal oxides such as zinc oxide (zinc oxide) and litharge (lead oxide) are used as a foam control agent for the foaming agent.
Fatty acids such as stearic acid and lauric acid or metal salts of these fatty acids (for example, salts of zinc, calcium, lead, barium, etc.) may be added. As a method for specifically carrying out the present invention, for example, the waste of the above-mentioned polypropylene automobile door trim with a polyvinyl chloride skin is first cut into small pieces using a cutting machine or a crusher (crusher), for example, its maximum size. A portion having a size of 20 mm or less, preferably 10 mm or less, at least 50% or more, preferably 70%
The longest dimension of other parts is 30
Cut into strips with a size of mm or less.
【００１１】かかる細片化した粉砕品をそのまま、或い
は該粉砕品１００重量部に対して、上記ＥＶＡ，ＥＥＡ
又はＥＥＭを１〜２０重量部配合したものを混練押出機
中に投入し、押出温度を１８０〜２３０℃、好ましくは
２００〜２１０℃の範囲で且つ押出機内の滞留時間を３
０〜３００秒の範囲で溶融混練しペレット化する。上記
押出温度が１８０℃未満ではポリプロピレンの溶融が不
十分となり、押出機への負荷が大となり好ましくない。
また２３０℃より高いとポリ塩化ビニルの熱分解が進み
好ましくない。混練押出機としては単軸、２軸いずれも
使用可能である。The above pulverized product as it is or 100 parts by weight of the pulverized product is treated with the above EVA, EEA.
Alternatively, 1 to 20 parts by weight of EEM is added to a kneading extruder, and the extrusion temperature is in the range of 180 to 230 ° C, preferably 200 to 210 ° C, and the residence time in the extruder is 3
Melt-kneading and pelletizing in the range of 0 to 300 seconds. If the extrusion temperature is less than 180 ° C., the melting of polypropylene becomes insufficient and the load on the extruder becomes large, which is not preferable.
On the other hand, if the temperature is higher than 230 ° C, thermal decomposition of polyvinyl chloride will proceed, which is not preferable. As the kneading extruder, both a single screw and a twin screw can be used.
【００１２】又、上述ペレット化時にポリ塩化ビニル又
はポリプロピレンに通常使用される熱安定剤、耐候剤、
顔料、充填剤、難燃剤、可塑剤等を配合する事も出来
る。得られたペレットは、単独或いは必要に応じてバー
ジンポリマーとブレンドして、通常の成形方法、例えば
射出成形、押出成形に共する事が出来る。本発明におい
ては、ポリ塩化ビニルとポリプロピレンの複合体粉砕品
等にさらにエチレン−酢酸ビニル共重合体、エチレン−
アクリル酸エステル共重合体もしくはエチレン−メタク
リル酸エステル、又は不飽和カルボン酸もしくはその誘
導体により変成されたポリオレフィン樹脂を特定量添加
することにより、強度等の機械特性が改善される。Further, a heat stabilizer, a weathering agent, which is usually used for polyvinyl chloride or polypropylene at the time of pelletizing,
Pigments, fillers, flame retardants, plasticizers, etc. can also be added. The obtained pellets can be used alone or, if necessary, blended with a virgin polymer, and can be subjected to a usual molding method such as injection molding or extrusion molding. In the present invention, in addition to the pulverized product of the composite of polyvinyl chloride and polypropylene, ethylene-vinyl acetate copolymer, ethylene-
Mechanical properties such as strength are improved by adding a specific amount of a polyolefin resin modified with an acrylic acid ester copolymer or ethylene-methacrylic acid ester, or an unsaturated carboxylic acid or its derivative.
【００１３】該エチレン−酢酸ビニル共重合体（ＥＶ
Ａ）としては酢酸ビニル含有量が１０重量％以上、好ま
しくは２０〜５０重量％の範囲のものが好適に用いられ
る。また、エチレン−アクリル酸エステル共重合体（Ｅ
ＥＡ）のアクリル酸エステルとは、例えば、アクリル酸
エチル、アクリル酸メチルなどであり、エチレン−メタ
クリル酸エステル共重合体ＥＥＭのメタクリル酸エステ
ルとは、例えば、メタクリル酸エチル、メタクリル酸メ
チルなどである。また、エチレン−アクリル酸エステル
共重合体またはエチレン−メタクリル酸エステル共重合
体中のアクリル酸エステル或はタクリル酸エステルの含
有量は、１０〜４５重量％、望ましくは２０〜４５重量
％の範囲のものが好適に用いられる。The ethylene-vinyl acetate copolymer (EV
As A), those having a vinyl acetate content of 10% by weight or more, preferably 20 to 50% by weight are suitably used. In addition, an ethylene-acrylic acid ester copolymer (E
The acrylate ester of EA) is, for example, ethyl acrylate, methyl acrylate, and the like, and the methacrylate ester of the ethylene-methacrylic acid ester copolymer EEM is, for example, ethyl methacrylate, methyl methacrylate, and the like. . The content of acrylic acid ester or tacrylic acid ester in the ethylene-acrylic acid ester copolymer or ethylene-methacrylic acid ester copolymer is in the range of 10 to 45% by weight, preferably 20 to 45% by weight. Those are preferably used.
【００１４】上記ＥＶＡ，ＥＥＡ又はＥＥＭの共重合体
の配合量はポリ塩化ビニルとポリプロピレンの複合体の
粉砕品１００重量部に対し、該共重合体１〜２０重量
部、好ましくは３〜１０重量部の範囲である。又、不飽
和カルボン酸変性ポリオレフィン樹脂において、変性成
分の不飽和カルボン酸またはその誘導体としては、例え
ば、マレイン酸、無水マレイン酸、マレイン酸エステ
ル、マレイン酸ハライド、アクリル酸、アクリル酸エス
テル、アクリル酸ハライド、メタクリル酸、メタクリル
酸エステル、メタクリル酸ハライドなどであり、望まし
くは、無水マレイン酸、マレイン酸である。これにより
変性されるポリオレフィン系樹脂としては、例えば、ポ
リエチレン、ポリプロピレン、エチレン−α−オレフィ
ン共重合体、エチレン−ビニルアセテート共重合体、エ
チレン−メチルアクリレート共重合体、エチレン−エチ
ルアクリレート共重合体、エチレン−プロピレン共重合
体或は、エチレン−プロピレン−ジエン三元共重合体な
どを挙げることができる。The amount of the EVA, EEA or EEM copolymer blended is 1 to 20 parts by weight, preferably 3 to 10 parts by weight, based on 100 parts by weight of a pulverized product of a polyvinyl chloride-polypropylene composite. It is a range of parts. In the unsaturated carboxylic acid-modified polyolefin resin, examples of the unsaturated carboxylic acid or its derivative as a modifying component include maleic acid, maleic anhydride, maleic acid ester, maleic acid halide, acrylic acid, acrylic acid ester, acrylic acid. Examples thereof include halides, methacrylic acid, methacrylic acid esters, and methacrylic acid halides, and maleic anhydride and maleic acid are preferable. As the polyolefin resin modified by this, for example, polyethylene, polypropylene, ethylene-α-olefin copolymer, ethylene-vinyl acetate copolymer, ethylene-methyl acrylate copolymer, ethylene-ethyl acrylate copolymer, Examples thereof include ethylene-propylene copolymers and ethylene-propylene-diene terpolymers.
【００１５】変性ポリオレフィン樹脂にグラフトされて
いる不飽和カルボン酸またはその誘導体の量は、原料ポ
リオレフィンに対し通常０．０１〜５重量％、望ましく
は０．０５〜２重量％、さらに好ましくは０．１〜２重
量％の範囲である。特に好ましいのは、無水マレイン酸
を０．３重量％以上グラフトしたエチレン−ビニルアセ
テート共重合体変成物又はエチレン−エチルアクリレー
ト共重合体変性物である。The amount of the unsaturated carboxylic acid or its derivative grafted on the modified polyolefin resin is usually 0.01 to 5% by weight, preferably 0.05 to 2% by weight, more preferably 0. It is in the range of 1 to 2% by weight. Particularly preferred is an ethylene-vinyl acetate copolymer modified product or an ethylene-ethyl acrylate copolymer modified product in which 0.3% by weight or more of maleic anhydride is grafted.
【００１６】上記変性ポリオレフィン樹脂の配合量はポ
リ塩化ビニルとポリプロピレンの複合体の細片１００重
量部に対し変性ポリオレフィン樹脂１〜２０重量部、好
ましくは３〜１０重量部の範囲である。上記変性ポリオ
レフィン樹脂の配合量が下限未満では回収品の衝撃特性
の改良が不十分であり、また上限より多いと機械的強度
が大幅に低下するので好ましくない。The amount of the modified polyolefin resin blended is in the range of 1 to 20 parts by weight, preferably 3 to 10 parts by weight, based on 100 parts by weight of the strip of the composite of polyvinyl chloride and polypropylene. If the amount of the modified polyolefin resin is less than the lower limit, the impact properties of the recovered product are not sufficiently improved, and if it is more than the upper limit, the mechanical strength is significantly reduced, which is not preferable.
【００１７】該変性ポリオレフィン樹脂はその全てが不
飽和カルボン酸またはその誘導体による変性物であって
も、また、一部未変性物を含んでいてもよい。さらに、
少量の他の樹脂で希釈してもよい。この場合変性物に対
する未変性物等の含有割合は、不飽和カルボン酸または
その誘導体の量が上記範囲を満たす限りにおいて、特に
制限はない。All of the modified polyolefin resin may be a modified product with an unsaturated carboxylic acid or a derivative thereof, or may partially contain an unmodified product. further,
It may be diluted with a small amount of another resin. In this case, the content ratio of the unmodified product with respect to the modified product is not particularly limited as long as the amount of the unsaturated carboxylic acid or its derivative satisfies the above range.
【００１８】[0018]
【実施例】以下、本発明を実施例によって具体的に説明
するが、本発明は、その要旨を越えない限り、これら実
施例によって、何ら限定されるものではない。 （実施例−１）使用済みのポリ塩化ビニル表皮付ポリプ
ロピレン製自動車用ドアトリムを粉砕機を用いて２〜８
ｍｍ角に粉砕した。この粉砕品の１００重量部に対し
て、エチレン−エチルアクリレート共重合体（ＭＦＲ＝
１．５、エチルアクリレート２５ｗｔ％）を５重量部を
ヘンシェルミキサーにて均一ブレンドしスクリュー径４
７ｍｍφ２軸押出機（Ｌ／Ｄ＝４２）で２００℃の温度
で溶融混練（滞留時間１２０秒）し、ペレット化を行っ
た。EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited to these examples unless it exceeds the gist of the invention. (Example-1) Using a crusher to grind a used polypropylene automobile door trim with polyvinyl chloride skin using a crusher
It was crushed into mm squares. With respect to 100 parts by weight of this pulverized product, an ethylene-ethyl acrylate copolymer (MFR =
1.5 parts, ethyl acrylate 25 wt%) and 5 parts by weight of a Henschel mixer to blend uniformly and screw diameter 4
A 7 mmφ twin-screw extruder (L / D = 42) was melt-kneaded (retention time 120 seconds) at a temperature of 200 ° C. to pelletize.
【００１９】得られたペレットを、下記方法によって評
価し、その結果を表−１に示す。 ＭＦＲ ＪＩＳ Ｋ ７２１０（１９０℃、２．１
６ｋｇ加重） 引張試験 ＪＩＳ Ｋ ７１１３（ｋｇｆ／ｃｍ2 ） 曲げ弾性率 ＪＩＳ Ｋ ７２０３（ｋｇｆ／ｃｍ2 ） アイゾット衝撃強度 ＪＩＳ Ｋ ７１１０（ｋｇｆ・
ｃｍ／ｃｍ）The obtained pellets were evaluated by the following methods, and the results are shown in Table-1. MFR JIS K 7210 (190 ° C, 2.1
6 kg load) Tensile test JIS K 7113 (kgf / cm 2 ) Flexural modulus JIS K 7203 (kgf / cm 2 ) Izod impact strength JIS K 7110 (kgf ・
cm / cm)
【００２０】（実施例−２）実施例１においてエチレン
−エチルアクリレート共重合体のかわりにエチレン−ビ
ニルアセテート共重合体を用いた以外は実施例−１と同
様にして行なった。その結果を表１に示す。(Example-2) The procedure of Example-1 was repeated, except that an ethylene-vinyl acetate copolymer was used in place of the ethylene-ethyl acrylate copolymer. The results are shown in Table 1.
【００２１】（実施例−３）実施例１においてエチレン
−エチルアクリレート共重合体を配合しなかった以外は
同様にして行なった。その結果を表１に示す。Example 3 The procedure of Example 1 was repeated except that the ethylene-ethyl acrylate copolymer was not added. The results are shown in Table 1.
【００２２】（実施例−４）使用済みのポリ塩化ビニル
表皮付ポリプロピレン製自動車用ドアトリムを粉砕機を
用いて２〜８ｍｍ角に粉砕した。この粉砕品の１００重
量部に対して、無水マレイン酸変性したエチレン−エチ
ルアクリレート共重合体（ＭＦＲ＝２、エチルアクリレ
ート２５ｗｔ％、無水マレイン酸グラフト量０．４ｗｔ
％）を５重量部をヘンシェルミキサーにて均一ブレンド
しスクリュー径４７ｍｍφ２軸押出機（Ｌ／Ｄ＝４２）
で２００℃の温度で溶融混練（滞留時間１２０秒）し、
ペレット化を行った。その結果を表−２に示す。(Example-4) A used polypropylene automobile door trim with a polyvinyl chloride skin was crushed into 2 to 8 mm squares using a crusher. Based on 100 parts by weight of this pulverized product, a maleic anhydride-modified ethylene-ethyl acrylate copolymer (MFR = 2, ethyl acrylate 25 wt%, maleic anhydride graft amount 0.4 wt
%) In a Henschel mixer and screw diameter 47 mm φ twin screw extruder (L / D = 42)
Melt kneading (retention time 120 seconds) at a temperature of 200 ° C.
Pelletization was performed. The results are shown in Table-2.
【００２３】（実施例−５）無水マレイン酸変性エチレ
ン−エチルアクリレート共重合体を無水マレイン酸変性
したエチレン−ビニルアセテート共重合体を用いた以外
は実施例−４と同様にして行なった。その結果を表２に
示す。(Example-5) The procedure of Example-4 was repeated, except that a maleic anhydride-modified ethylene-ethyl acrylate copolymer was used instead of a maleic anhydride-modified ethylene-vinyl acetate copolymer. The results are shown in Table 2.
【００２４】（比較例１）実施例１においてエチレン−
エチルアクリレート共重合体を全く配合することなく、
且つ押出機における混練温度を２００℃から１７０℃に
変えて行なったこと以外は同様にして行なったところ、
押出機に負荷が掛り過ぎペレット化出来なかった。(Comparative Example 1) Ethylene in Example 1
Without adding any ethyl acrylate copolymer,
Moreover, when the same operation was performed except that the kneading temperature in the extruder was changed from 200 ° C. to 170 ° C.,
The extruder was overloaded and could not be pelletized.
【００２５】（比較例２）実施例１においてエチレン−
エチルアクリレート共重合体を全く配合することなく、
且つ押出機における混練温度を２００℃から２５０℃に
変えて行なったこと以外は同様にして行なった。その結
果を表１に示す。(Comparative Example 2) Ethylene in Example 1
Without adding any ethyl acrylate copolymer,
Further, the same operation was carried out except that the kneading temperature in the extruder was changed from 200 ° C to 250 ° C. The results are shown in Table 1.
【００２６】（比較例３）無水マレイン酸変性したエチ
レン−エチルアクリレート共重合体を配合しなかった以
外は実施例−４と同様にペレット化を行なった結果を表
２に示す。Comparative Example 3 Table 2 shows the results of pelletizing in the same manner as in Example 4 except that the maleic anhydride-modified ethylene-ethyl acrylate copolymer was not blended.
【００２７】[0027]
【表１】 [Table 1]
【００２８】[0028]
【表２】 [Table 2]
【００２９】[0029]
【発明の効果】本発明によれば、ポリ塩化ビニル表皮付
ポリプロピレン複合体の再生処理において、実施例に見
られるように高い衝撃強度が得られ、またその他の機械
的特性についても優れた再生物が得られる。INDUSTRIAL APPLICABILITY According to the present invention, in the regenerating treatment of the polypropylene composite with the polyvinyl chloride skin, a high impact strength can be obtained as seen in the examples, and a regenerated product excellent in other mechanical properties as well. Is obtained.
Claims (3)
る複合体を粉砕し、１８０〜２３０℃の温度で混練する
事を特徴とするポリ塩化ビニルとポリプロピレンの複合
体の再生処理方法1. A method for regenerating a composite of polyvinyl chloride and polypropylene, which comprises crushing a composite of polyvinyl chloride and polypropylene and kneading at a temperature of 180 to 230 ° C.
る複合体を粉砕し、該粉砕品１００重量部に対してエチ
レン−酢酸ビニル共重合体、エチレン−アクリル酸エス
テル共重合体、又はエチレン−メタクリル酸エステル共
重合体１〜２０重量部を添加し、１８０〜２３０℃の温
度で混練する事を特徴とするポリ塩化ビニルとポリプロ
ピレンの複合体の再生方法2. A composite of polyvinyl chloride and polypropylene is crushed, and 100 parts by weight of the crushed product is used for ethylene-vinyl acetate copolymer, ethylene-acrylic acid ester copolymer, or ethylene-methacrylic acid ester. A method for regenerating a composite of polyvinyl chloride and polypropylene, which comprises adding 1 to 20 parts by weight of a copolymer and kneading at a temperature of 180 to 230 ° C.
る複合体を粉砕し、該粉砕品１００重量部に対して不飽
和カルボン酸又はその誘導体により変成されたポリオレ
フィン樹脂１〜２０重量部を添加し、１８０〜２３０℃
の温度で混練する事を特徴とするポリ塩化ビニルとポリ
プロピレンの複合体の再生処理方法3. A pulverized composite of polyvinyl chloride and polypropylene is added to 100 parts by weight of the pulverized product, and 1 to 20 parts by weight of a polyolefin resin modified with an unsaturated carboxylic acid or a derivative thereof is added. ~ 230 ° C
Reprocessing method for composites of polyvinyl chloride and polypropylene characterized by kneading at different temperatures
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27311492A JPH06190829A (en) | 1992-10-12 | 1992-10-12 | Reprocessing method of composite of polyvinyl chloride and polypropylene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27311492A JPH06190829A (en) | 1992-10-12 | 1992-10-12 | Reprocessing method of composite of polyvinyl chloride and polypropylene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06190829A true JPH06190829A (en) | 1994-07-12 |
Family
ID=17523330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27311492A Pending JPH06190829A (en) | 1992-10-12 | 1992-10-12 | Reprocessing method of composite of polyvinyl chloride and polypropylene |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06190829A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0770381A (en) * | 1993-09-01 | 1995-03-14 | Chisso Corp | Recycled resin composition using vinyl chloride resin-based scraps |
| KR20020043335A (en) * | 2000-12-02 | 2002-06-10 | 김항식 | Method for preparing a recycling panel using a wasted article and a recycling panel manufactured thereby |
| JP2002363363A (en) * | 2001-06-07 | 2002-12-18 | Sumitomo Electric Ind Ltd | Composite resin composition and electric wire / cable using the same |
| JP2013056989A (en) * | 2011-09-08 | 2013-03-28 | Hiroshima Kasei Ltd | Method for recycling vinyl chloride-based wall paper, and sheet, and construct including the same sheet |
| CN104277353A (en) * | 2013-07-11 | 2015-01-14 | 郎溪县恒通塑业有限公司 | Method for producing PVC pipe |
-
1992
- 1992-10-12 JP JP27311492A patent/JPH06190829A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0770381A (en) * | 1993-09-01 | 1995-03-14 | Chisso Corp | Recycled resin composition using vinyl chloride resin-based scraps |
| KR20020043335A (en) * | 2000-12-02 | 2002-06-10 | 김항식 | Method for preparing a recycling panel using a wasted article and a recycling panel manufactured thereby |
| JP2002363363A (en) * | 2001-06-07 | 2002-12-18 | Sumitomo Electric Ind Ltd | Composite resin composition and electric wire / cable using the same |
| JP2013056989A (en) * | 2011-09-08 | 2013-03-28 | Hiroshima Kasei Ltd | Method for recycling vinyl chloride-based wall paper, and sheet, and construct including the same sheet |
| CN104277353A (en) * | 2013-07-11 | 2015-01-14 | 郎溪县恒通塑业有限公司 | Method for producing PVC pipe |
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