JPH10139927A - Recycled resin composition - Google Patents
Recycled resin compositionInfo
- Publication number
- JPH10139927A JPH10139927A JP30178496A JP30178496A JPH10139927A JP H10139927 A JPH10139927 A JP H10139927A JP 30178496 A JP30178496 A JP 30178496A JP 30178496 A JP30178496 A JP 30178496A JP H10139927 A JPH10139927 A JP H10139927A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- resin composition
- resin
- thermoplastic resin
- desirably
- 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
- 239000011342 resin composition Substances 0.000 title claims abstract description 22
- 239000000835 fiber Substances 0.000 claims abstract description 30
- 229920002239 polyacrylonitrile Polymers 0.000 claims abstract description 26
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 9
- -1 polypropylene Polymers 0.000 claims description 13
- 239000004743 Polypropylene Substances 0.000 claims description 9
- 229920001155 polypropylene Polymers 0.000 claims description 9
- 239000004793 Polystyrene Substances 0.000 claims description 5
- 229920002223 polystyrene Polymers 0.000 claims description 5
- 230000009477 glass transition Effects 0.000 claims description 3
- 238000002156 mixing Methods 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract description 5
- 238000000465 moulding Methods 0.000 abstract description 5
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 abstract description 4
- 229920000049 Carbon (fiber) Polymers 0.000 abstract description 2
- 239000004917 carbon fiber Substances 0.000 abstract description 2
- 229920001577 copolymer Polymers 0.000 abstract description 2
- 239000003365 glass fiber Substances 0.000 abstract description 2
- 239000011256 inorganic filler Substances 0.000 abstract description 2
- 229910003475 inorganic filler Inorganic materials 0.000 abstract description 2
- 239000000178 monomer Substances 0.000 abstract description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 abstract description 2
- 229920002554 vinyl polymer Polymers 0.000 abstract description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 1
- 229920005989 resin Polymers 0.000 description 15
- 239000011347 resin Substances 0.000 description 15
- 239000000047 product Substances 0.000 description 7
- 238000004040 coloring Methods 0.000 description 5
- 229920005990 polystyrene resin Polymers 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002609 medium Substances 0.000 description 2
- 238000005453 pelletization Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920005594 polymer fiber Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 229920001893 acrylonitrile styrene Polymers 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920001955 polyphenylene ether Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- SCUZVMOVTVSBLE-UHFFFAOYSA-N prop-2-enenitrile;styrene Chemical compound C=CC#N.C=CC1=CC=CC=C1 SCUZVMOVTVSBLE-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- KAKZBPTYRLMSJV-UHFFFAOYSA-N vinyl-ethylene Natural products C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Artificial Filaments (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、熱可塑性樹脂を再
生利用して、しかも、品質が向上した繊維強化樹脂組成
物に関する。[0001] The present invention relates to a fiber reinforced resin composition having improved quality by recycling a thermoplastic resin.
【０００２】[0002]
【従来の技術】昨今の地球規模の環境問題、枯渇する石
油資源の節約にともない、熱可塑性樹脂製品の産業廃棄
物及び一般廃棄物を粉砕機等によりパウダー又はペレッ
ト状にに処理し、これらの樹脂を用いて再度新規な材料
として用いる割合が増加している。しかし、このような
再生樹脂を使用した製品は、未使用の樹脂（以下、バー
ジン樹脂ともいう）を使用した製品に比べて強度低下を
回避することができないため、要求される製品品質が低
品質の用途に利用されているのが現状である。2. Description of the Related Art With the recent global environmental problems and the depletion of depleted petroleum resources, industrial waste and general waste of thermoplastic resin products are processed into powder or pellets by a crusher or the like. The ratio of using a resin again as a new material is increasing. However, products using such recycled resins cannot avoid a decrease in strength compared to products using unused resins (hereinafter, also referred to as virgin resins), and the required product quality is low. At present, it is used for applications.
【０００３】一方、特開昭６３−８１１６２号公報に
は、熱可塑性樹脂にポリアクリロニトリル系繊維を添加
して飛躍的に機械的物性を改善する技術が記載されてい
る。しかし、ポリアクリロニロリル系繊維を添加するこ
とにより表面外観が低下し、着色するという欠点があっ
た。On the other hand, Japanese Patent Application Laid-Open No. 63-81162 describes a technique for dramatically improving mechanical properties by adding a polyacrylonitrile fiber to a thermoplastic resin. However, the addition of the polyacryloniloryl-based fiber has the disadvantage that the surface appearance is reduced and the surface is colored.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、再生熱可塑
性樹脂にポリアクリロニトリル系繊維を添加することに
より、衝撃強度、剛性等の品質が向上した樹脂組成物で
あって、しかも、バージン樹脂にアクリロニトリル系繊
維を使用した物に比べて優れた表面外観、着色の少ない
樹脂組成物を提供することを目的とする。DISCLOSURE OF THE INVENTION The present invention relates to a resin composition having improved impact strength and rigidity by adding a polyacrylonitrile fiber to a regenerated thermoplastic resin. It is an object of the present invention to provide a resin composition having excellent surface appearance and less coloring as compared with a product using acrylonitrile fiber.
【０００５】[0005]
【課題を解決するための手段】本発明者らは、前記課題
を解決するため鋭意検討した結果、再生熱可塑性樹脂に
ポリアクリロニトリル系繊維を配合する事により衝撃強
度、剛性、表面外観に優れ、着色の少ない樹脂組成物を
得る事を見いだし、本発明をなすに至った。すなわち、
本発明は以下の通りである。 （１）（Ａ）再生熱可塑性樹脂９９〜５０重量％、
（Ｂ）ポリアクリロニトリル系繊維１〜５０重量％から
なる樹脂組成物。 （２）（Ａ）再生熱可塑性樹脂がポリプロピレン、ポリ
スチレンである上記１記載の樹脂組成物。 （３）ポリアクリロニトリル系繊維の繊度が０．５〜５
０デニール、繊維長が０．５〜２０ｍｍである上記１ま
たは２記載の樹脂組成物。 （４）再生熱可塑性樹脂のガラス転移温度以上、２５０
℃未満で加工成形する上記１、２、または３記載の樹脂
組成物の製造方法。Means for Solving the Problems The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems, and as a result, by blending a polyacrylonitrile fiber with a recycled thermoplastic resin, they have excellent impact strength, rigidity and surface appearance. The present inventors have found that a resin composition having less coloring is obtained, and have accomplished the present invention. That is,
The present invention is as follows. (1) (A) 99-50% by weight of a recycled thermoplastic resin,
(B) A resin composition comprising 1 to 50% by weight of polyacrylonitrile fiber. (2) The resin composition as described in (1) above, wherein the recycled thermoplastic resin is polypropylene or polystyrene. (3) The fineness of the polyacrylonitrile fiber is 0.5 to 5
3. The resin composition according to the above 1 or 2, wherein the denier is 0 denier and the fiber length is 0.5 to 20 mm. (4) above the glass transition temperature of the recycled thermoplastic resin, 250
4. The method for producing a resin composition according to the above 1, 2, or 3, wherein the resin composition is processed and molded at a temperature lower than 0 ° C.
【０００６】以下、本発明につき詳細に説明する。本発
明に用いる再生熱可塑性樹脂の種類としては、例えば、
ポリプロピレン、低、中、高密度ポリエチレン、ポリ塩
化ビニル、ポリスチレン、アクリロニトリル−スチレン
共重合体、アクリロニトリル−ブタジエン−スチレン共
重合体、ポリアミド、ポリアセタール、ポリカーボネー
ト、ポリエチレンテレフタレート、ポリブチレンテレフ
タレート、ポリフェニレンエーテル、スチレン−ブタジ
エン共重合体及びその水素添加組成物等の熱可塑性樹脂
が挙げられ、これらの内、ポリプロピレン、低、中、高
密度ポリエチレン、ポリ塩化ビニル、ポリスチレンが特
に好ましく、ポリプロピレン樹脂が最も好ましい。Hereinafter, the present invention will be described in detail. As the type of the recycled thermoplastic resin used in the present invention, for example,
Polypropylene, low, medium, high density polyethylene, polyvinyl chloride, polystyrene, acrylonitrile-styrene copolymer, acrylonitrile-butadiene-styrene copolymer, polyamide, polyacetal, polycarbonate, polyethylene terephthalate, polybutylene terephthalate, polyphenylene ether, styrene- Thermoplastic resins such as butadiene copolymers and hydrogenated compositions thereof are mentioned, among which polypropylene, low, medium, high density polyethylene, polyvinyl chloride and polystyrene are particularly preferred, and polypropylene resins are most preferred.
【０００７】本発明に用いる再生熱可塑性樹脂は、これ
らの樹脂が各種形状に成形され、使用された後に再使用
のために回収されたリサイクル樹脂、或いは各種形状に
成形される際に得られた副製品やオフ品等を再度成形す
るために回収された樹脂等を挙げることができる。これ
らの再生樹脂は単一種類のものを使用することが好まし
いが、混合体であっても構わない。これらの樹脂は、ペ
レット状、粉体状に粉砕され再使用に供される。これら
の再生熱可塑性樹脂中には未使用の熱可塑性樹脂を含ん
でいても良い。The recycled thermoplastic resin used in the present invention is obtained by molding these resins into various shapes and recycling them after use and then collecting them for reuse, or when molding them into various shapes. Examples of the resin include a resin collected for re-forming a by-product or an off-product. It is preferable to use a single kind of these regenerated resins, but they may be a mixture. These resins are pulverized into pellets and powders and reused. These recycled thermoplastic resins may contain unused thermoplastic resins.
【０００８】本発明におけるポリアクリロニトリル系繊
維としては、アクリロニトリル単独重合体あるいはアク
リロニトリル９０重量％以上とアクリロニトリルと共重
合可能なビニル系モノマー１０重量％以下の共重合体か
ら成るポリアクリロニトリル系重合体繊維であって、一
般に知られるポリアクリロニトリル系重合体繊維の製造
方法で作られる繊維を用いることができる。The polyacrylonitrile-based fiber in the present invention may be an acrylonitrile homopolymer or a polyacrylonitrile-based polymer fiber comprising 90% by weight or more of acrylonitrile and 10% by weight or less of a vinyl monomer copolymerizable with acrylonitrile. A fiber produced by a generally known method for producing a polyacrylonitrile-based polymer fiber can be used.
【０００９】本発明におけるポリアクリロニトリル系繊
維は、繊度０．５〜５０デニール、好ましくは１〜３０
デニール、さらに好ましくは３〜２０デニールである。
繊度０．５デニール未満のものは工業的に製造すること
が必ずしも容易ではなく、５０デニールを越えると補強
効果が不十分となる傾向がある。また、引張強度２．５
ｇ／ｄ以上、初期弾性率３０ｇ／ｄ以上であることが好
ましい。The polyacrylonitrile fiber of the present invention has a fineness of 0.5 to 50 denier, preferably 1 to 30 denier.
Denier, more preferably 3 to 20 denier.
If the fineness is less than 0.5 denier, it is not always easy to produce it industrially, and if it exceeds 50 denier, the reinforcing effect tends to be insufficient. In addition, a tensile strength of 2.5
g / d or more, and the initial elastic modulus is preferably 30 g / d or more.
【００１０】本発明におけるポリアクリロニトリル系繊
維の繊維長は０．５〜２０ｍｍが好ましく、さらに好ま
しくは１ｍｍ〜１０ｍｍ、より好ましくは２ｍｍ〜６ｍ
ｍである。０．５ｍｍ未満では工業的に生産することが
必ずしも容易ではなく、また、補強効果を出すためには
長い方が好ましいが、２０ｍｍを越えると、ポリアクリ
ロニトリル系繊維が熱可塑性樹脂中で混練りされ、押し
出される際に、ポリアクリロニトリル系繊維同士での絡
み合いが生じ分散性が不十分となり物性低下を起こす場
合がある。[0010] The fiber length of the polyacrylonitrile fiber in the present invention is preferably 0.5 to 20 mm, more preferably 1 to 10 mm, more preferably 2 to 6 m.
m. If it is less than 0.5 mm, it is not always easy to produce industrially, and it is preferable that the length is longer in order to obtain a reinforcing effect, but if it exceeds 20 mm, the polyacrylonitrile fiber is kneaded in the thermoplastic resin. When extruded, the polyacrylonitrile fibers may become entangled with each other, resulting in insufficient dispersibility and deterioration in physical properties.
【００１１】また、本発明におけるポリアクリロニトリ
ル系繊維は、熱可塑性樹脂に未処理のまま混合しても良
いし、予めポリアクリロニトリル系繊維をエポキシ樹
脂、ポリビニルアルコール、ポリウレタン等のエマルジ
ョンに浸漬し収束、乾燥した後に所定の長さに切断した
チョップドストランドとして混合しても、本発明の樹脂
組成物は得られる。The polyacrylonitrile fiber of the present invention may be mixed with a thermoplastic resin without being treated, or the polyacrylonitrile fiber may be previously immersed in an emulsion of epoxy resin, polyvinyl alcohol, polyurethane, or the like and converged. The resin composition of the present invention can be obtained by mixing as a chopped strand cut to a predetermined length after drying.
【００１２】本発明の樹脂組成物は、ポリアクリロニト
リル系繊維が１〜５０重量％、好ましくは、１〜４０重
量％、さらに好ましくは１〜３０重量％添加されている
ものである。添加量が少なすぎると補強効果が不十分と
なり、多すぎると成形が困難となる。本発明の樹脂組成
物にはその特長を損なわない範囲で、ガラス繊維、炭素
繊維等の無機充填材、帯電防止剤、各種の安定剤、核
剤、可塑剤、難燃剤、顔料、着色剤等を、公知の方法に
従い適宜添加して用いることができる。[0012] The resin composition of the present invention contains 1 to 50% by weight, preferably 1 to 40% by weight, and more preferably 1 to 30% by weight of polyacrylonitrile fiber. If the addition amount is too small, the reinforcing effect becomes insufficient, and if it is too large, molding becomes difficult. The resin composition of the present invention includes inorganic fillers such as glass fibers and carbon fibers, antistatic agents, various stabilizers, nucleating agents, plasticizers, flame retardants, pigments, colorants, and the like, as long as the features are not impaired. Can be appropriately added and used according to a known method.
【００１３】本発明を構成する各成分を混合する方法
は、いかなる方法でも良いが、例えば、押出機、加熱ロ
ール、バンバリーミキサー、ニーダー等を使用すること
ができる。本発明の樹脂組成物の成形方法はいかなる方
法でも良いが、例えば、射出成形、押出成形、圧縮成
型、ブロー成形等が挙げられる。The method of mixing the components constituting the present invention may be any method. For example, an extruder, a heating roll, a Banbury mixer, a kneader and the like can be used. The method for molding the resin composition of the present invention may be any method, and examples thereof include injection molding, extrusion molding, compression molding, and blow molding.
【００１４】本発明の樹脂組成物の加工成形温度は、再
生熱可塑性樹脂のガラス転移温度以上、２５０℃未満が
好ましく、より好ましくは２３０℃未満である。加工成
形温度が２５０℃以上ではポリアクリロニトリル系繊維
が熱劣化を受けやすくなり、強度の低下及び着色を招く
事になり好ましくない。この様にして得られた本発明の
樹脂組成物は、窓枠及び額縁の様な製品、または、家具
用の複雑な形態の枠及び構造成分や羽目板または積層構
造物中の単板等に使用することができる。The processing temperature of the resin composition of the present invention is preferably equal to or higher than the glass transition temperature of the recycled thermoplastic resin and lower than 250 ° C., and more preferably lower than 230 ° C. When the processing temperature is 250 ° C. or higher, the polyacrylonitrile-based fibers are susceptible to thermal deterioration, which leads to a decrease in strength and coloring, which is not preferable. The resin composition of the present invention thus obtained is used for products such as window frames and picture frames, or frames and structural components having complicated forms for furniture, veneers or veneers in laminated structures, and the like. can do.
【００１５】[0015]
【発明の実施の形態】以下、実施例によって本発明を具
体的に説明するが、本発明は以下の例に限定されるもの
ではない。なお、実施例及び比較例で得られた試験片の
曲げ強度、曲げ弾性率及びアイゾット衝撃強さは、各々
ＡＳＴＭＤ−７９０、Ｄ−２５６の試験法を用いて求め
た。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be specifically described by way of examples, but the present invention is not limited to the following examples. The flexural strength, flexural modulus, and Izod impact strength of the test pieces obtained in Examples and Comparative Examples were determined using the test methods of ASTM D-790 and D-256, respectively.
【００１６】着色の度合いは、スガ試験機（株）製ＳＭ
カラーコンピューターＳＭ−５−ＣＨにより測色し、黄
色度ＹＩ値を求め評価した。ＹＩの値が小さいものほど
着色が少ないことを意味する。成型品の表面外観の評価
基準は、ポリアクリロニトリル系繊維の毛羽立ちの認め
られるものを×、認められないものを○とした。The degree of coloring is determined by SM manufactured by Suga Test Instruments Co., Ltd.
The color was measured with a color computer SM-5-CH, and the yellowness YI value was determined and evaluated. A smaller value of YI means less coloring. The evaluation criteria of the surface appearance of the molded article were evaluated as x when the polyacrylonitrile fiber was found to be fluffy, and as ○ when it was not.
【００１７】［原材料の調製］ （１）再生熱可塑性樹脂（成分Ａ）の調製 ポリプロピレン樹脂（昭和電工（株）製ショウアロマー
ＭＫ１１２）及びポリスチレン樹脂（旭化成工業（株）
製旭化成ポリスチレンＧ８１０２）各々を池貝鉄工
（株）製ＰＣＭ−４５二軸押出機を用い２００℃で押出
しペレット化を５回繰り返すことにより、再生ポリプロ
ピレン樹脂、および再生ポリスチレン樹脂を調製した。 （２）ポリアクリロニトリル系繊維（成分Ｂ）の調製 ３０００デニール／１０００フィラメントで、強度１３
ｇ／ｄ、初期弾性率６０ｇ／ｄの性能を有するポリアク
リロニトリル系繊維を、ビスフェノールＡ型エポキシ樹
脂（旭化成工業株式会社製ＡＥＲ６６１）の濃度８重量
％のエマルジョン液中を浸漬通過させ、乾燥後、４ｍｍ
の長さに切断したポリアクリロニトリル系繊維チョップ
ドストランドを作製した。[Preparation of Raw Materials] (1) Preparation of Recycled Thermoplastic Resin (Component A) Polypropylene resin (Show Allomer MK112 manufactured by Showa Denko KK) and polystyrene resin (Asahi Kasei Kogyo Co., Ltd.)
Asahi Kasei Polystyrene G8102) was extruded at 200 ° C. using a PCM-45 twin-screw extruder manufactured by Ikegai Iron Works Co., Ltd., and pelletization was repeated 5 times to prepare a recycled polypropylene resin and a recycled polystyrene resin. (2) Preparation of polyacrylonitrile fiber (component B) 3000 denier / 1000 filaments, strength 13
g / d, a polyacrylonitrile-based fiber having a performance of an initial elastic modulus of 60 g / d is immersed and passed through an emulsion of bisphenol A type epoxy resin (AER661 manufactured by Asahi Kasei Kogyo Co., Ltd.) having a concentration of 8% by weight and dried. 4mm
A polyacrylonitrile fiber chopped strand cut to length was prepared.
【００１８】[0018]
【実施例１、２】再生熱可塑性樹脂として、再生ポリプ
ロピレン樹脂、および再生ポリスチレン樹脂をそれぞれ
用いて表１に示す割合で配合し、池貝鉄工（株）製ＰＣ
Ｍ−４５二軸押出機を用い２００℃で溶融混練しペレッ
ト化した。このペレットから射出成形機（ＦＵＮＵＣ
ＡＵＴＯＳＨＯＴ Ｔｓｅｒｉｅｓ ＭＯＤＥＬ ５０
Ｄ）で試験片を作製し、評価を行った。Examples 1 and 2 A recycled polypropylene resin and a recycled polystyrene resin were blended in the proportions shown in Table 1 as recycled thermoplastic resins, respectively.
The mixture was melt-kneaded at 200 ° C. using an M-45 twin-screw extruder and pelletized. From these pellets, an injection molding machine (FUNUC
AUTOSHOT Tseries Series 50
A test piece was prepared in D) and evaluated.
【００１９】[0019]
【比較例１、２】表１に示す割合で、再生熱可塑性樹脂
の代わりに二軸押出機を通過させない未使用のポリプロ
ピレン樹脂、およびポリスチレン樹脂を用いた以外は、
実施例１、２と同様にしてポリアクリロニトリル系繊維
チョップドストランドと溶融混練しペレット化した後、
射出成形機により試験片を作製し評価を行った。Comparative Examples 1 and 2 Except for using an unused polypropylene resin and a polystyrene resin which do not pass through a twin-screw extruder in place of the recycled thermoplastic resin at the ratios shown in Table 1,
After melting and kneading with polyacrylonitrile fiber chopped strand and pelletizing in the same manner as in Examples 1 and 2,
Test pieces were prepared by an injection molding machine and evaluated.
【００２０】実施例及び比較例の評価結果を表１に示
す。Table 1 shows the evaluation results of the examples and comparative examples.
【００２１】[0021]
【表１】 [Table 1]
【００２２】[0022]
【発明の効果】本発明の樹脂組成物は、衝撃強度、剛
性、表面外観に優れると共に着色の少ない産業上有用な
材料を提供することができる。さらに、再生樹脂の有効
利用をはかることができる。Industrial Applicability The resin composition of the present invention can provide an industrially useful material which is excellent in impact strength, rigidity and surface appearance and is less colored. Further, the recycled resin can be effectively used.
Claims (4)
％、（Ｂ）ポリアクリロニトリル系繊維１〜５０重量％
からなる樹脂組成物。(A) 99 to 50% by weight of a recycled thermoplastic resin, and (B) 1 to 50% by weight of a polyacrylonitrile fiber.
A resin composition comprising:
ン、ポリスチレンである請求項１記載の樹脂組成物。2. The resin composition according to claim 1, wherein (A) the recycled thermoplastic resin is polypropylene or polystyrene.
０．５〜５０デニール、繊維長が０．５〜２０ｍｍであ
る請求項１または２記載の樹脂組成物。3. The resin composition according to claim 1, wherein the fineness of the polyacrylonitrile fiber is 0.5 to 50 denier and the fiber length is 0.5 to 20 mm.
上、２５０℃未満で加工成形する請求項１、２、または
３記載の樹脂組成物の製造方法。4. The process for producing a resin composition according to claim 1, wherein the process is carried out at a temperature not lower than the glass transition temperature of the regenerated thermoplastic resin and lower than 250 ° C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30178496A JPH10139927A (en) | 1996-11-13 | 1996-11-13 | Recycled resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30178496A JPH10139927A (en) | 1996-11-13 | 1996-11-13 | Recycled resin composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10139927A true JPH10139927A (en) | 1998-05-26 |
Family
ID=17901137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30178496A Pending JPH10139927A (en) | 1996-11-13 | 1996-11-13 | Recycled resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10139927A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006070210A (en) * | 2004-09-03 | 2006-03-16 | Sharp Corp | Thermoplastic resin molded body, method for producing the same, and method for recycling thermoplastic resin |
| JP2007100101A (en) * | 2006-11-21 | 2007-04-19 | Sharp Corp | Thermoplastic resin molded body, method for producing the same, and method for recycling thermoplastic resin |
| JP2010043271A (en) * | 2009-10-01 | 2010-02-25 | Sharp Corp | Thermoplastic resin molded product, method for producing the same, and method of recycling thermoplastic resin |
| KR20220019492A (en) * | 2020-08-10 | 2022-02-17 | 금오공과대학교 산학협력단 | Recyling carboon complex and preparation method thereof |
| CN115161874A (en) * | 2022-06-29 | 2022-10-11 | 西安工程大学 | A process for preparing nanofiber material from recycled material |
-
1996
- 1996-11-13 JP JP30178496A patent/JPH10139927A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006070210A (en) * | 2004-09-03 | 2006-03-16 | Sharp Corp | Thermoplastic resin molded body, method for producing the same, and method for recycling thermoplastic resin |
| JP2007100101A (en) * | 2006-11-21 | 2007-04-19 | Sharp Corp | Thermoplastic resin molded body, method for producing the same, and method for recycling thermoplastic resin |
| JP2010043271A (en) * | 2009-10-01 | 2010-02-25 | Sharp Corp | Thermoplastic resin molded product, method for producing the same, and method of recycling thermoplastic resin |
| KR20220019492A (en) * | 2020-08-10 | 2022-02-17 | 금오공과대학교 산학협력단 | Recyling carboon complex and preparation method thereof |
| CN115161874A (en) * | 2022-06-29 | 2022-10-11 | 西安工程大学 | A process for preparing nanofiber material from recycled material |
| CN115161874B (en) * | 2022-06-29 | 2024-05-07 | 西安工程大学 | Process for preparing nanofiber material from reclaimed materials |
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