JP2009291986A - Method of manufacturing molded form - Google Patents
Method of manufacturing molded form Download PDFInfo
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- JP2009291986A JP2009291986A JP2008146059A JP2008146059A JP2009291986A JP 2009291986 A JP2009291986 A JP 2009291986A JP 2008146059 A JP2008146059 A JP 2008146059A JP 2008146059 A JP2008146059 A JP 2008146059A JP 2009291986 A JP2009291986 A JP 2009291986A
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- polyphenylene sulfide
- fibrous filler
- molded
- reinforced polyphenylene
- weight
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 239000004734 Polyphenylene sulfide Substances 0.000 claims abstract description 74
- 229920000069 polyphenylene sulfide Polymers 0.000 claims abstract description 74
- 239000000203 mixture Substances 0.000 claims abstract description 48
- 239000008188 pellet Substances 0.000 claims abstract description 37
- 238000001746 injection moulding Methods 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 12
- 239000012765 fibrous filler Substances 0.000 claims description 28
- 239000003365 glass fiber Substances 0.000 claims description 20
- 239000002245 particle Substances 0.000 claims description 8
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000006229 carbon black Substances 0.000 claims description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract description 4
- 239000000243 solution Substances 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 61
- 238000005452 bending Methods 0.000 description 44
- 230000000052 comparative effect Effects 0.000 description 18
- 238000002156 mixing Methods 0.000 description 15
- 208000015943 Coeliac disease Diseases 0.000 description 12
- 238000005259 measurement Methods 0.000 description 12
- 229920005989 resin Polymers 0.000 description 10
- 239000011347 resin Substances 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 8
- 238000000465 moulding Methods 0.000 description 8
- 239000000835 fiber Substances 0.000 description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- OCJBOOLMMGQPQU-UHFFFAOYSA-N 1,4-dichlorobenzene Chemical compound ClC1=CC=C(Cl)C=C1 OCJBOOLMMGQPQU-UHFFFAOYSA-N 0.000 description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 239000004203 carnauba wax Substances 0.000 description 3
- 235000013869 carnauba wax Nutrition 0.000 description 3
- 239000011342 resin composition Substances 0.000 description 3
- 229910052979 sodium sulfide Inorganic materials 0.000 description 3
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 3
- 229920005992 thermoplastic resin Polymers 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- 229920001342 Bakelite® Polymers 0.000 description 1
- 235000010893 Bischofia javanica Nutrition 0.000 description 1
- 240000005220 Bischofia javanica Species 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 235000010919 Copernicia prunifera Nutrition 0.000 description 1
- 244000180278 Copernicia prunifera Species 0.000 description 1
- 229920013634 DIC-PPS Polymers 0.000 description 1
- 229920013633 Fortron Polymers 0.000 description 1
- 239000004738 Fortron® Substances 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 229920013629 Torelina Polymers 0.000 description 1
- 239000004742 Torelina™ Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- -1 for example Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000003348 petrochemical agent Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000013001 point bending Methods 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Reinforced Plastic Materials (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
本発明は、再生ポリフェニレンスルフィドよりなる成形体の製造方法に関するものであり、更に詳細には、成形体を製造する際に発生するスプルー、ランナー又は該成形体の不要品等からなる繊維状充填材強化ポリフェニレンスルフィド製成形体を有効利用し、再度成形体とする製造方法に関するものである。 The present invention relates to a method for producing a molded body made of recycled polyphenylene sulfide, and more specifically, a fibrous filler made of sprue, runner, or unnecessary product of the molded body that is generated when the molded body is manufactured. The present invention relates to a production method in which a reinforced polyphenylene sulfide molded product is effectively used to obtain a molded product again.
熱可塑性樹脂は、成形加工性、電気絶縁性、機械特性などに優れることから、幅広い用途に用いられている。そして、熱可塑性樹脂の成型加工方法として射出成形が知られており、射出成形により成形体とする際には、スプルー、ランナー又は規格外の成形体が発生する。 Thermoplastic resins are widely used because they are excellent in moldability, electrical insulation, mechanical properties, and the like. Injection molding is known as a thermoplastic resin molding method, and sprues, runners or non-standard molded products are generated when a molded product is formed by injection molding.
また、近年、各種製品の小型軽量化に伴い、使用される部品も小型化が進められている。このため、これらの部品には成形性に優れる樹脂組成物も多用されているが、これらの部品には小型で薄肉なものが多い。このような小型部品の場合、部品一個に対するスプルー、ランナーの重量比率が高く、このようなスプルー、ランナーなどを廃棄すると、原料樹脂組成物の製品化率が低下するため、再利用することが試みられているが、諸物性の低下、製品色調の悪化等の課題が発生している。 In recent years, as various products are reduced in size and weight, the components used are also being reduced in size. For this reason, resin components having excellent moldability are often used for these parts, but many of these parts are small and thin. In the case of such small parts, the weight ratio of sprue and runner to a single part is high, and disposal of such sprue and runner decreases the productization rate of the raw resin composition, so it can be reused. However, problems such as deterioration of various physical properties and deterioration of product color have occurred.
ポリフェニレンスルフィドは、熱可塑性樹脂の中でも優れた耐熱性、耐薬品性および難燃性を有することから、使用済み成形品の処理が困難であり、焼却処理の際に亜硫酸ガスを発生する場合があり、再利用が強く求められている。 Polyphenylene sulfide has excellent heat resistance, chemical resistance and flame resistance among thermoplastic resins, so it is difficult to treat used molded products, and sulfur dioxide gas may be generated during incineration. There is a strong demand for reuse.
そして、ポリフェニレンスルフィドを含む原料樹脂、添加剤、さらにこの原料樹脂と添加剤とからなる組成物の成形で発生した回収成形物の粉砕品をコンパウンディングしてなるリサクル樹脂組成物が提案されている（例えば特許文献１参照。）。また、再生ポリフェニレンスルフィド樹脂を含有してなる繊維が提案されている（例えば特許文献２参照。）。 And, a resin resin composition obtained by compounding a raw material resin containing polyphenylene sulfide, an additive, and a pulverized product of a recovered molded product generated by molding the composition comprising the raw material resin and the additive has been proposed. (For example, refer to Patent Document 1). Further, a fiber containing a regenerated polyphenylene sulfide resin has been proposed (see, for example, Patent Document 2).
しかし、特許文献１に提案されたリサクル樹脂組成物は、溶融粘度、メルトフローレートなどに広いバラツキを有しており射出成形に供し成形体とする際の成形条件が安定化しないばかりか、得られる成形体の力学特性も安定化しないという課題を有するものであった。また、特許文献２に提案されたものは繊維に関するものであり、成形体として利用することのできないものであった。 However, the resin resin composition proposed in Patent Document 1 has a wide variation in melt viscosity, melt flow rate, etc., and not only does the molding conditions not stabilize when it is used for injection molding to obtain a molded product. There was a problem that the mechanical properties of the molded article obtained were not stabilized. Moreover, what was proposed by patent document 2 is a thing regarding a fiber, and cannot be utilized as a molded object.
そこで、本発明は、成形体中の材料として使用される再生ポリフェニレンスルフィドの比率を高めても、ポリフェニレンスルフィド成形体が本来有する機械強度、耐熱性、耐薬品性、寸法安定性に優れるという特性を保持した、成形体の製造方法を提供することを目的とし、さらに詳しくは、電気・電子部品又は自動車電装部品などの電気部品用途に特に有用な成形体の製造方法を提供することにある。 Therefore, the present invention has the characteristics that even if the ratio of recycled polyphenylene sulfide used as a material in the molded body is increased, the mechanical strength, heat resistance, chemical resistance, and dimensional stability inherent to the polyphenylene sulfide molded body are excellent. It is an object of the present invention to provide a method for producing a held molded body, and more specifically, to provide a method for producing a molded body particularly useful for electrical parts such as electrical / electronic parts or automobile electrical parts.
本発明者らは、上記の課題を解決すべく鋭意検討した結果、特定の繊維状充填材強化ポリフェニレンスルフィド製成形体粉砕物に対し、繊維状充填材強化ポリフェニレンスルフィド組成物ペレットを特定割合で配合し、射出成形を行うことにより、ポリフェニレンスルフィドが本来有する機械強度、耐熱性、耐薬品性、寸法安定性に優れるという特性を保持し、成形加工性にも優れる成形体となることを見出し、本発明を完成させるに至った。 As a result of intensive studies to solve the above-mentioned problems, the inventors of the present invention blended fibrous filler-reinforced polyphenylene sulfide composition pellets at a specific ratio with respect to a specific fibrous filler-reinforced polyphenylene sulfide molded product. In addition, by performing injection molding, it has been found that a molded body that retains the mechanical strength, heat resistance, chemical resistance, and dimensional stability inherent in polyphenylene sulfide and is excellent in molding processability. The invention has been completed.
即ち、本発明は、平均径２〜７ｍｍを有する繊維状充填材強化ポリフェニレンスルフィド製成形体粉砕物（ａ）１００重量部に対し、繊維状充填材強化ポリフェニレンスルフィド組成物ペレット（ｂ）１００〜４００重量部を配合し射出成形機に供し、射出成形を行うことを特徴とする成形体の製造方法に関するものである。 That is, according to the present invention, the fibrous filler-reinforced polyphenylene sulfide composition pellets (b) 100 to 400 are used for 100 parts by weight of the pulverized product of fibrous filler-reinforced polyphenylene sulfide (a) having an average diameter of 2 to 7 mm. The present invention relates to a method for producing a molded article, characterized by blending parts by weight and using it in an injection molding machine to perform injection molding.
以下、本発明に関し詳細に説明する。 Hereinafter, the present invention will be described in detail.
本発明の成形体の製造方法は、成形済み、使用済みの繊維状充填材強化ポリフェニレンスルフィド製成形体を粉砕した粉砕物（ａ）に、成形加工を行う前の繊維状充填材強化ポリフェニレンスルフィド組成物ペレット（ｂ）を配合し、射出成形を行い再生ポリフェニレンスルフィド成形体とするものである。 The method for producing a molded body according to the present invention comprises a fibrous filler reinforced polyphenylene sulfide composition before being molded into a pulverized product (a) obtained by pulverizing a molded and used fibrous filler reinforced polyphenylene sulfide molded body. Compound pellets (b) are blended and injection molded to form a recycled polyphenylene sulfide molded product.
ここで、該粉砕物（ａ）は、繊維状充填材強化ポリフェニレンスルフィド組成物を用いてなる成形済み、使用済み成形体を粉砕機等により平均径２〜７ｍｍに粉砕したものである。そして、成形体とする前の繊維状充填材強化ポリフェニレンスルフィド組成物は、通常、ポリフェニレンスルフィド及び繊維状充填材、必要に応じタルク、炭酸カルシウム等を加え、押出機等により加熱溶融混合を行い、押し出された組成物ストランドをホットカット、コールドカット等の方法により形状を整えた繊維状充填材強化ポリフェニレンスルフィド組成物ペレットとして入手する事が可能であり、該繊維状充填材強化ポリフェニレンスルフィド組成物としては、例えばサスティールＰＰＳ（東ソー株式会社製）、トレリナ（東レ株式会社製）、ＤＩＣ−ＰＰＳ（大日本インキ工業株式会社製）、フォートロン（ポリプラスチックス製）、出光ＰＰＳ（出光石油化学製）、スミコン（住友ベークライト製）、ライトン（ティコナ製）等の市販品を挙げることができる。これら市販品繊維状充填材強化ポリフェニレンスルフィド組成物ペレットは、繊維状充填材強化ポリフェニレンスルフィド組成物ペレット（ｂ）として用いることも可能である。なお、ポリフェニレンスルフィドとは、ｐ−ジクロロベンゼンに硫化ナトリウムに代表される硫化物を重縮合反応させて、精製・回収することにより得られる樹脂である。 Here, the pulverized product (a) is obtained by pulverizing a molded and used molded product made of a fibrous filler-reinforced polyphenylene sulfide composition to an average diameter of 2 to 7 mm using a pulverizer or the like. And the fibrous filler reinforced polyphenylene sulfide composition before forming into a molded body is usually added polyphenylene sulfide and fibrous filler, talc, calcium carbonate, etc., if necessary, and heat-melt mixing with an extruder or the like, The extruded composition strands can be obtained as fibrous filler reinforced polyphenylene sulfide composition pellets that have been shaped by methods such as hot cutting and cold cutting, and the fibrous filler reinforced polyphenylene sulfide composition can be obtained. Are, for example, Sustain PPS (manufactured by Tosoh Corporation), Torelina (manufactured by Toray Industries, Inc.), DIC-PPS (manufactured by Dainippon Ink Industries, Ltd.), Fortron (manufactured by Polyplastics), Idemitsu PPS (manufactured by Idemitsu Petrochemicals) ), Sumicon (manufactured by Sumitomo Bakelite), Lighton (manufactured by Ticona) Mention may be made of commercially available products. These commercially available fibrous filler-reinforced polyphenylene sulfide composition pellets can also be used as fibrous filler-reinforced polyphenylene sulfide composition pellets (b). Polyphenylene sulfide is a resin obtained by purifying and recovering a polycondensation reaction of p-dichlorobenzene with a sulfide represented by sodium sulfide.
該粉砕物（ａ）は、繊維状充填材強化ポリフェニレンスルフィド組成物を成形加工に供した際に発生するスプルー、ランナー等の端材、規格外成形体、使用済み成形体等を回収し、粉砕を行ったものであり、平均径２〜７ｍｍを有する粉砕物であれば如何なるものも用いることが可能である。ここで、平均径が２ｍｍ未満の粉砕物である場合、繊維状充填材強化ポリフェニレンスルフィド組成物ペレット（ｂ）と配合し、射出成形機に供した際に、該粉砕物と該ペレット（ｂ）の配合がうまくいかず射出成形機内への供給が劣る結果、成形加工性に劣る場合がある。また、粉砕物中の繊維状充填材の繊維長が短くなることから得られる成形体が機械特性に劣る場合がある。一方、平均径が７ｍｍを越える場合、射出成形機内での該粉砕物と該ペレット（ｂ）の混合がうまくいかず成形体は製品外観に劣ったり、場合によって成形そのものが困難となる場合がある。また、本発明の製造方法においては、射出成形機への粉砕物（ａ）及び繊維状充填材強化ポリフェニレンスルフィド組成物ペレット（ｂ）の供給が安定する結果、製品外観に優れる成形体を効率よく製造することが可能となることから該粉砕物（ａ）として、粒径０．５ｍｍ以下の成分含有量率が５重量％以下である繊維状充填材強化ポリフェニレンスルフィド製成形体粉砕物を用いることが好ましい。なお、本発明における平均径は、例えば粉砕物を顕微鏡等により目視観察し、その長径の平均長さを求めることにより測定することが可能であり、粒径０．５ｍｍ以下の成分含有量は、例えば目開き０．５ｍｍの篩により粉砕物を篩うことにより測定することが可能である。 The pulverized material (a) collects and crushes sprues, runners and other end materials, non-standard molded products, used molded products, etc. generated when the fibrous filler-reinforced polyphenylene sulfide composition is subjected to molding processing. Any pulverized product having an average diameter of 2 to 7 mm can be used. Here, when the pulverized product has an average diameter of less than 2 mm, the pulverized product and the pellet (b) when blended with the fibrous filler-reinforced polyphenylene sulfide composition pellet (b) and used in an injection molding machine. As a result of the poor blending of the resin and the poor supply to the injection molding machine, the molding processability may be poor. Moreover, the molded object obtained from the fiber length of the fibrous filler in a pulverized material becoming short may be inferior to a mechanical characteristic. On the other hand, if the average diameter exceeds 7 mm, mixing of the pulverized product and the pellet (b) in the injection molding machine may not be successful, and the molded product may be inferior in product appearance, or in some cases, molding itself may be difficult. . In addition, in the production method of the present invention, as a result of the stable supply of the pulverized product (a) and the fibrous filler-reinforced polyphenylene sulfide composition pellet (b) to the injection molding machine, a molded product excellent in product appearance is efficiently obtained. As the pulverized product (a), a pulverized product made of a fibrous filler-reinforced polyphenylene sulfide having a particle content of 0.5 mm or less and 5% by weight or less is used as the pulverized product (a). Is preferred. The average diameter in the present invention can be measured, for example, by visually observing the pulverized product with a microscope or the like, and determining the average length of the major axis. For example, it can be measured by sieving the pulverized product with a sieve having an aperture of 0.5 mm.
本発明に用いられる該粉砕物（ａ）及び繊維状充填材強化ポリフェニレンスルフィド組成物ペレット（ｂ）に含有される繊維状充填材としては、繊維状充填材として知られているものであれば如何なるものでもよく、例えばガラス繊維、炭素繊維、アルミナ繊維、ボロン繊維、アラミド繊維等を挙げることができ、その中でも特にガラス繊維、炭素繊維であることが好ましい。そして、特に機械的特性、耐熱性に優れた成形体の製造方法となることから、該粉砕物（ａ）及び繊維状充填材強化ポリフェニレンスルフィド組成物ペレット（ｂ）における繊維状充填材の配合割合としては２０〜６０重量％であることが好ましい。さらに、得られる成形体個々間における機械特性、耐熱性、寸法安定性のバラツキが抑えられた成形体の製造方法となることから、該粉砕物（ａ）と繊維状充填材強化ポリフェニレンスルフィド組成物ペレット（ｂ）における繊維状充填材の配合割合は、同一であることが好ましい。 As the fibrous filler contained in the pulverized product (a) and fibrous filler-reinforced polyphenylene sulfide composition pellet (b) used in the present invention, any fibrous filler may be used as long as it is known as a fibrous filler. For example, glass fiber, carbon fiber, alumina fiber, boron fiber, aramid fiber, and the like can be mentioned. Of these, glass fiber and carbon fiber are particularly preferable. And since it becomes the manufacturing method of the molded object excellent in especially a mechanical characteristic and heat resistance, the mixture ratio of the fibrous filler in this pulverized material (a) and fibrous filler reinforcement | strengthening polyphenylene sulfide composition pellet (b) Is preferably 20 to 60% by weight. Furthermore, since it becomes the manufacturing method of the molded object with which the dispersion | variation in the mechanical characteristics, heat resistance, and dimensional stability between individual molded objects obtained was suppressed, this pulverized material (a) and the fibrous filler reinforced polyphenylene sulfide composition The blending ratio of the fibrous filler in the pellet (b) is preferably the same.
本発明の成形体の製造方法は、該繊維状充填材強化ポリフェニレンスルフィド製成形体粉砕物（ａ）１００重量部に対し、繊維状充填材強化ポリフェニレンスルフィド組成物ペレット（ｂ）１００〜４００重量部を配合し、射出成形を行うものである。ここで、繊維状充填材強化ポリフェニレンスルフィド組成物ペレット（ｂ）の配合量が１００重量部未満である場合、得られる成形体は機械特性に劣る物となる。一方、繊維状充填材強化ポリフェニレンスルフィド組成物ペレット（ｂ）の配合量が４００重量部を越える場合、リサイクルとしての意味合いが低くなる。 The method for producing a molded product according to the present invention comprises 100 to 400 parts by weight of fibrous filler reinforced polyphenylene sulfide composition pellets (b) with respect to 100 parts by weight of the pulverized molded product of fibrous filler reinforced polyphenylene sulfide (a). And injection molding is performed. Here, when the compounding quantity of a fibrous filler reinforcement | strengthening polyphenylene sulfide composition pellet (b) is less than 100 weight part, the molded object obtained will be a thing inferior to a mechanical characteristic. On the other hand, when the blending amount of the fibrous filler-reinforced polyphenylene sulfide composition pellets (b) exceeds 400 parts by weight, the meaning as recycling becomes low.
本発明の製造方法においては、本発明の目的を逸脱しない限りにおいて繊維状充填材強化ポリフェニレンスルフィド製成形体粉砕物（ａ）及び繊維状充填材強化ポリフェニレンスルフィド組成物ペレット（ｂ）は通常ポリフェニレンスルフィド組成物に用いられている繊維状充填材以外の充填材である、例えば炭酸カルシウム、マイカ、タルク、水酸化マグネシウム等を併用していてもよい。そして、特に成形体の色調変化を補填し、色調にも優れた成形体の製造方法となることから、色調を調整する着色剤を配合していることが好ましく、該着色剤としては、例えばカーボンブラック、酸化チタンであることが好ましい。 In the production method of the present invention, the fibrous filler-reinforced polyphenylene sulfide molded product pulverized product (a) and the fibrous filler-reinforced polyphenylene sulfide composition pellet (b) are usually polyphenylene sulfide unless departing from the object of the present invention. A filler other than the fibrous filler used in the composition, for example, calcium carbonate, mica, talc, magnesium hydroxide and the like may be used in combination. And since it becomes a method for producing a molded product that compensates for the change in color tone of the molded product and has an excellent color tone, it is preferable to blend a colorant that adjusts the color tone. Black and titanium oxide are preferred.
本発明の成形体の製造方法としては、射出成形を行うことが可能であれば如何なる射出成形機を用いることも可能であり、また、その際の射出温度としては例えば２５０〜３５０℃の温度、金型温度としては例えば５０〜１５０℃を挙げることができる。 As a method for producing the molded article of the present invention, any injection molding machine can be used as long as injection molding can be performed. In addition, the injection temperature at that time is, for example, a temperature of 250 to 350 ° C., Examples of the mold temperature include 50 to 150 ° C.
本発明は、従来再利用されることなく廃棄されていた繊維状充填材強化ポリフェニレンスルフィド製使用済み成形体、端材を廃棄することなく、電気・電子部品、自動車部品等の成形体として再利用するものであり、材料費のコスト低減ばかりか、資源の有効利用の点でも有用なものである。 The present invention can be reused as a molded product for electrical and electronic parts, automobile parts, etc. without discarding the end material, without discarding the end material. This is useful not only for reducing material costs but also for effective use of resources.
次に、本発明を実施例及び比較例によって説明するが、本発明はこれらの例になんら制限されものではない。 EXAMPLES Next, although an Example and a comparative example demonstrate this invention, this invention is not restrict | limited at all to these examples.
〜溶融粘度測定〜
直径１ｍｍ、長さ２ｍｍのダイスを装着した高化式フローテスター（（株）島津製作所製、（商品名）ＣＦＴ−５００）にて、測定温度３１５℃、荷重１０ｋｇの条件下で溶融粘度の測定を行った。
~ Measurement of melt viscosity ~
Measurement of melt viscosity under the conditions of a measurement temperature of 315 ° C. and a load of 10 kg using a Koka type flow tester (manufactured by Shimadzu Corporation, (trade name) CFT-500) equipped with a die having a diameter of 1 mm and a length of 2 mm. Went.
〜引張強度、引張伸びの測定〜
射出成形によりＡＳＴＭ Ｄ−６３８の１号試験片を作製し、該試験片を用いて、ＡＳＴＭ Ｄ−６３８に準じ、引張強度及び引張伸びを測定した。測定装置（島津製作所製、（商品名）オートグラフＡＧ−５０００Ｂ）を用い、チャック間距離１１０ｍｍ、測定速度５ｍｍ／分の試験条件で行った。引張強度が高いほど機械的強度に優れ、引張伸びが大きいほど靭性に優れると判断した。
~ Measurement of tensile strength and tensile elongation ~
No. 1 test piece of ASTM D-638 was produced by injection molding, and tensile strength and tensile elongation were measured using the test piece according to ASTM D-638. Using a measuring device (manufactured by Shimadzu Corporation, (trade name) Autograph AG-5000B), the test was performed under the test conditions of a distance between chucks of 110 mm and a measurement speed of 5 mm / min. The higher the tensile strength, the better the mechanical strength, and the higher the tensile elongation, the better the toughness.
〜曲げたわみ量、曲げ強度の測定〜
射出成形により長さ１２７ｍｍ、幅１２．７ｍｍ、厚み３．２ｍｍの試験片を作成し、ＡＳＴＭ Ｄ−７９０ＭｅｔｈｏｄＩ（三点曲げ）に準拠し、スパン間５０ｍｍ、測定速度１．５ｍｍ／分の試験条件で、曲げ強度及び曲げたわみ量の測定を行った。曲げ強度が高いほど機械的強度に優れ、曲げたわみ量が大きいほど靱性に優れると判断した。
~ Measurement of bending deflection and bending strength ~
A test piece with a length of 127 mm, a width of 12.7 mm, and a thickness of 3.2 mm was prepared by injection molding, in accordance with ASTM D-790 Method I (three-point bending), test conditions of span 50 mm, measurement speed 1.5 mm / min. Then, the bending strength and the amount of bending deflection were measured. It was judged that the higher the bending strength, the better the mechanical strength, and the larger the bending deflection, the better the toughness.
〜シャルピー衝撃強度〜
射出成形機（住友重機械工業（株）製、（商品名）ＳＥ−７５Ｓ）によってシャルピー衝撃強度測定用試験片を作製し、ノッチングマシーン（（株）東洋精機製作所製、（商品名）Ａ−３型）によりノッチを入れ、シャルピー衝撃試験機（（株）東洋精機製作所製、（商品名）ＤＧ−ＣＢ型）を用いて、ＩＳＯ１７９に準拠し測定を行った。
~ Charpy impact strength ~
A test piece for Charpy impact strength measurement was prepared by an injection molding machine (manufactured by Sumitomo Heavy Industries, Ltd. (trade name) SE-75S), and a notching machine (trade name: A- manufactured by Toyo Seiki Seisakusho Co., Ltd.). 3 type), a notch was made, and measurement was performed according to ISO 179 using a Charpy impact tester (manufactured by Toyo Seiki Seisakusho, (trade name) DG-CB type).
〜ウェルド強度の測定〜
射出成形機（住友重機械工業（株）製、（商品名）ＳＥ−７５Ｓ）によって試験片を作製し、引張試験機（（株）島津製作所製、（商品名）オートグラフＡＧ−５０００Ｂ）を用いて、ＡＳＴＭ Ｄ６３８に準拠し測定を行った。
~ Measurement of weld strength ~
A test piece was prepared by an injection molding machine (manufactured by Sumitomo Heavy Industries, Ltd., (trade name) SE-75S), and a tensile tester (manufactured by Shimadzu Corporation, (trade name) Autograph AG-5000B) was used. And measured according to ASTM D638.
〜粉砕物の平均径の測定〜
繊維状充填材強化ポリフェニレンスルフィド製成形体の粉砕物５グラムを任意に抜き出し、顕微鏡を用い目視にて粉砕物の最も長い箇所の長さを測定し、その平均値を平均径とした。
-Measurement of average diameter of pulverized product-
5 g of the pulverized product of the fibrous filler reinforced polyphenylene sulfide molded product was arbitrarily extracted, and the length of the longest portion of the pulverized product was measured visually using a microscope, and the average value was taken as the average diameter.
〜粉砕物中の粒径０．５ｍｍ以下の成分含有量の測定〜
繊維状充填材強化ポリフェニレンスルフィド製成形体の粉砕物５０グラムを任意に抜き出し、目開き０．５ｍｍの篩を用い測定を行った。
-Measurement of the content of components with a particle size of 0.5 mm or less in the pulverized product-
50 g of a pulverized product of the fibrous filler-reinforced polyphenylene sulfide molded product was arbitrarily extracted and measured using a sieve having an opening of 0.5 mm.
＜合成例１（ＰＰＳ−２）の合成）＞
攪拌機を装備する５０リットルオートクレーブに、フレーク状硫化ソーダ（Ｎａ２Ｓ・２．９Ｈ２Ｏ）６２１４ｇ及びＮ−メチル−２−ピロリドン１７０００ｇを仕込み、窒素気流下攪拌しながら徐々に２０５℃まで昇温して、１３５５ｇの水を留去した。この系を１４０℃まで冷却した後、ｐ−ジクロロベンゼン７２８５ｇ、Ｎ−メチル−２−ピロリドン５０００ｇを添加し、窒素気流下に系を封入した。この系を２時間かけて２２５℃に昇温し、２２５℃にて２時間重合させた後、３０分かけて２５０℃に昇温し、さらに２５０℃にて３時間重合を行った。重合終了後、室温まで冷却しポリマーを遠心分離機により単離した。該固形分を温水でポリマーを繰り返し洗浄し１００℃で一昼夜乾燥することにより、溶融粘度が４５０ポイズのポリフェニレンスルフィド（以下、ＰＰＳ−１と記す。）を得た。このＰＰＳ−１を、さらに酸素雰囲気下２５０℃で２時間硬化を行い架橋型バージンポリフェニレンスルフィド（以下、ＰＰＳ−２と記す。）を得た。
<Synthesis of Synthesis Example 1 (PPS-2)>
A 50-liter autoclave equipped with a stirrer was charged with 6214 g of flaky sodium sulfide (Na 2 S · 2.9H 2 O) and 17000 g of N-methyl-2-pyrrolidone, and gradually heated to 205 ° C. while stirring under a nitrogen stream. 1355 g of water was distilled off. After cooling this system to 140 ° C., 7285 g of p-dichlorobenzene and 5000 g of N-methyl-2-pyrrolidone were added, and the system was sealed under a nitrogen stream. This system was heated to 225 ° C. over 2 hours and polymerized at 225 ° C. for 2 hours, then heated to 250 ° C. over 30 minutes, and further polymerized at 250 ° C. for 3 hours. After completion of the polymerization, the mixture was cooled to room temperature and the polymer was isolated using a centrifuge. The polymer was repeatedly washed with warm water and dried at 100 ° C. for a whole day and night to obtain polyphenylene sulfide (hereinafter referred to as PPS-1) having a melt viscosity of 450 poise. The PPS-1 was further cured at 250 ° C. for 2 hours in an oxygen atmosphere to obtain a crosslinked virgin polyphenylene sulfide (hereinafter referred to as PPS-2).
得られたＰＰＳ−２の溶融粘度は１８００ポイズであった。 The melt viscosity of the obtained PPS-2 was 1800 poise.
＜合成例２（ＰＰＳ−４））の合成）＞
攪拌機を装備する５０リットルオートクレーブに、フレーク状硫化ソーダ（Ｎａ２Ｓ・２．９Ｈ２Ｏ）６２１４ｇ及びＮ−メチル−２−ピロリドン１７０００ｇを仕込み、窒素気流下攪拌しながら徐々に２０５℃まで昇温して、１３５５ｇの水を留去した。この系を１４０℃まで冷却した後、ｐ−ジクロロベンゼン７１６０ｇ、Ｎ−メチル−２−ピロリドン５０００ｇを添加し、窒素気流下に系を封入した。この系を２時間かけて２２５℃に昇温し、２２５℃にて２時間重合させた後、３０分かけて２５０℃に昇温し、さらに２５０℃にて３時間重合を行った。重合終了後、室温まで冷却しポリマーを遠心分離機により単離した。該固形分を温水でポリマーを繰り返し洗浄し１００℃で一昼夜乾燥することにより、溶融粘度が２８０ポイズのポリフェニレンスルフィド（以下、ＰＰＳ−３と記す。）を得た。このＰＰＳ−３を、さらに酸素雰囲気下２５０℃で４時間硬化を行い架橋型バージンポリフェニレンスルフィド（以下、ＰＰＳ−４と記す。）を得た。
<Synthesis of Synthesis Example 2 (PPS-4))>
A 50-liter autoclave equipped with a stirrer was charged with 6214 g of flaky sodium sulfide (Na 2 S · 2.9H 2 O) and 17000 g of N-methyl-2-pyrrolidone, and gradually heated to 205 ° C. while stirring under a nitrogen stream. 1355 g of water was distilled off. After the system was cooled to 140 ° C., 7160 g of p-dichlorobenzene and 5000 g of N-methyl-2-pyrrolidone were added, and the system was sealed under a nitrogen stream. This system was heated to 225 ° C. over 2 hours and polymerized at 225 ° C. for 2 hours, then heated to 250 ° C. over 30 minutes, and further polymerized at 250 ° C. for 3 hours. After completion of the polymerization, the mixture was cooled to room temperature and the polymer was isolated using a centrifuge. The polymer was repeatedly washed with warm water and dried at 100 ° C. for a whole day and night to obtain polyphenylene sulfide (hereinafter referred to as PPS-3) having a melt viscosity of 280 poise. The PPS-3 was further cured at 250 ° C. for 4 hours in an oxygen atmosphere to obtain a crosslinked virgin polyphenylene sulfide (hereinafter referred to as PPS-4).
得られたＰＰＳ−４の溶融粘度は、３２００ポイズであった。 The obtained PPS-4 had a melt viscosity of 3200 poise.
実施例及び比較例において、ガラス繊維、滑剤として以下のものを用いた。 In the examples and comparative examples, the following were used as glass fibers and lubricants.
ガラス繊維；エヌエスジー・ヴェトロテックス（株）製、（商品名）ＲＥＳ０３−ＴＰ９１；繊維径９μｍ、繊維長３ｍｍ。 Glass fiber; manufactured by NSG Vetrotex Co., Ltd., (trade name) RES03-TP91; fiber diameter 9 μm, fiber length 3 mm.
滑剤（カルナバワックス）；日興ファインプロダクツ製、（商品名）精製カルナバ１号粉末。 Lubricant (carnauba wax); (trade name) purified carnauba No. 1 powder manufactured by Nikko Fine Products.
比較例１
ＰＰＳ−４／ガラス繊維／カルナバワックス／＝５９．５／４０／０．５（重量％）の割合となるように、３１０℃に加熱した二軸押出機（東芝機械製、（商品名）ＴＥＭ−３５−１０２Ｂ）用い、スクリュー回転数２００ｒｐｍにて溶融混練し、ダイより流出する溶融組成物を冷却後裁断し、ガラス繊維強化ポリフェニレンスルフィド組成物ペレットを作製した。
Comparative Example 1
A twin screw extruder (manufactured by Toshiba Machine, (trade name) TEM) heated to 310 ° C. so as to have a ratio of PPS-4 / glass fiber / carnauba wax / = 59.5 / 40 / 0.5 (% by weight) 35-102B), and melt kneaded at a screw speed of 200 rpm, and the molten composition flowing out from the die was cut after cooling to produce glass fiber reinforced polyphenylene sulfide composition pellets.
該ガラス繊維強化ポリフェニレンスルフィド組成物ペレットを、３１０℃に加熱した射出成形機（住友重機械工業製、（商品名）ＳＥ７５）のホッパーに投入し、引張強度、引張伸び、曲げ強度、曲げたわみ量を測定するための試験片、シャルピー衝撃強度を測定するための試験片、ウェルド強度を測定するための試験片をそれぞれ成形した。これら試験片を用い、引張強度、引張伸び、曲げ強度、曲げたわみ量、シャルピー衝撃強度、ウェルド強度、をそれぞれ評価した。これらの結果を表１に示す。 The glass fiber reinforced polyphenylene sulfide composition pellets are put into a hopper of an injection molding machine (manufactured by Sumitomo Heavy Industries, Ltd., (trade name) SE75) heated to 310 ° C., and tensile strength, tensile elongation, bending strength, and bending deflection amount. , A test piece for measuring Charpy impact strength, and a test piece for measuring weld strength were molded. Using these test pieces, tensile strength, tensile elongation, bending strength, amount of bending deflection, Charpy impact strength, and weld strength were evaluated. These results are shown in Table 1.
実施例１
比較例１において試験片を作成した際に発生したスプルー・ランナー、また、評価後の試験片を集め、粉砕機により粉砕を行い、平均径４．３ｍｍの成形体粉砕物を得た。また、該粉砕物中の粒径０．５ｍｍ以下の成分含有率は１．５重量％であった。
Example 1
The sprue runner generated when the test piece was prepared in Comparative Example 1 and the evaluated test piece were collected and pulverized by a pulverizer to obtain a pulverized compact having an average diameter of 4.3 mm. In addition, the content of components having a particle size of 0.5 mm or less in the pulverized product was 1.5% by weight.
該成形体粉砕物１００重量部に対し、比較例１により得られたガラス繊維強化ポリフェニレンスルフィド組成物ペレット２００重量部を混合した後、３１０℃に加熱した射出成形機（住友重機械工業製、（商品名）ＳＥ７５）のホッパーに投入し、引張強度、引張伸び、曲げ強度、曲げたわみ量を測定するための試験片、シャルピー衝撃強度を測定するための試験片、ウェルド強度を測定するための試験片をそれぞれ成形した。これら試験片を用い、引張強度、引張伸び、曲げ強度、曲げたわみ量、シャルピー衝撃強度、ウェルド強度、をそれぞれ評価した。これらの結果を表１に示す。 After mixing 200 parts by weight of the glass fiber reinforced polyphenylene sulfide composition pellets obtained in Comparative Example 1 with 100 parts by weight of the pulverized product, an injection molding machine (manufactured by Sumitomo Heavy Industries, ( Product name) Put into hopper of SE75), test piece for measuring tensile strength, tensile elongation, bending strength, bending deflection, test piece for measuring Charpy impact strength, test for measuring weld strength Each piece was molded. Using these test pieces, tensile strength, tensile elongation, bending strength, amount of bending deflection, Charpy impact strength, and weld strength were evaluated. These results are shown in Table 1.
実施例２
実施例１において試験片を作成した際に発生したスプルー・ランナー、また、評価後の試験片を集め、粉砕機により粉砕を行い、平均径３．１ｍｍの成形体粉砕物を得た。また、該粉砕物中の粒径０．５ｍｍ以下の成分含有率は２．７重量％であった。
Example 2
The sprue runner generated when the test piece was prepared in Example 1 and the test piece after the evaluation were collected and pulverized by a pulverizer to obtain a pulverized compact having an average diameter of 3.1 mm. The content of components having a particle size of 0.5 mm or less in the pulverized product was 2.7% by weight.
該成形体粉砕物１００重量部に対し、比較例１により得られたガラス繊維強化ポリフェニレンスルフィド組成物ペレット２５０重量部を混合した後、３１０℃に加熱した射出成形機（住友重機械工業製、（商品名）ＳＥ７５）のホッパーに投入し、引張強度、引張伸び、曲げ強度、曲げたわみ量を測定するための試験片、シャルピー衝撃強度を測定するための試験片、ウェルド強度を測定するための試験片をそれぞれ成形した。これら試験片を用い、引張強度、引張伸び、曲げ強度、曲げたわみ量、シャルピー衝撃強度、ウェルド強度、をそれぞれ評価した。これらの結果を表１に示す。 After mixing 250 parts by weight of the glass fiber reinforced polyphenylene sulfide composition pellets obtained in Comparative Example 1 with 100 parts by weight of the pulverized product, the injection molding machine (manufactured by Sumitomo Heavy Industries, ( Product name) Put into SE75) hopper, test piece for measuring tensile strength, tensile elongation, bending strength, bending deflection, test piece for measuring Charpy impact strength, test for measuring weld strength Each piece was molded. Using these test pieces, tensile strength, tensile elongation, bending strength, amount of bending deflection, Charpy impact strength, and weld strength were evaluated. These results are shown in Table 1.
実施例３
実施例２において試験片を作成した際に発生したスプルー・ランナー、また、評価後の試験片を集め、粉砕機により粉砕を行い、平均径５．７ｍｍの成形体粉砕物を得た。また、該粉砕物中の粒径０．５ｍｍ以下の成分含有率は１．１重量％であった。
Example 3
The sprue runner generated when the test piece was prepared in Example 2 and the evaluated test piece were collected and pulverized by a pulverizer to obtain a pulverized compact having an average diameter of 5.7 mm. The content of components having a particle size of 0.5 mm or less in the pulverized product was 1.1% by weight.
該成形体粉砕物１００重量部に対し、比較例１により得られたガラス繊維強化ポリフェニレンスルフィド組成物ペレット３００重量部を混合した後、３１０℃に加熱した射出成形機（住友重機械工業製、（商品名）ＳＥ７５）のホッパーに投入し、引張強度、引張伸び、曲げ強度、曲げたわみ量を測定するための試験片、シャルピー衝撃強度を測定するための試験片、ウェルド強度を測定するための試験片をそれぞれ成形した。これら試験片を用い、引張強度、引張伸び、曲げ強度、曲げたわみ量、シャルピー衝撃強度、ウェルド強度、をそれぞれ評価した。これらの結果を表１に示す。 After mixing 300 parts by weight of the glass fiber reinforced polyphenylene sulfide composition pellets obtained in Comparative Example 1 with 100 parts by weight of the pulverized product, the injection molding machine (manufactured by Sumitomo Heavy Industries, ( Product name) Put into SE75) hopper, test piece for measuring tensile strength, tensile elongation, bending strength, bending deflection, test piece for measuring Charpy impact strength, test for measuring weld strength Each piece was molded. Using these test pieces, tensile strength, tensile elongation, bending strength, amount of bending deflection, Charpy impact strength, and weld strength were evaluated. These results are shown in Table 1.
比較例２
成形体粉砕物１００重量部に対し、比較例１により得られたガラス繊維強化ポリフェニレンスルフィド組成物ペレット３００重量部を混合した代わりに、成形体粉砕物１００重量部に対し、比較例１により得られたガラス繊維強化ポリフェニレンスルフィド組成物ペレット５０重量部を混合した以外は、実施例３と同様の方法により、引張強度、引張伸び、曲げ強度、曲げたわみ量を測定するための試験片、シャルピー衝撃強度を測定するための試験片、ウェルド強度を測定するための試験片をそれぞれ成形した。これら試験片、を用い、引張強度、引張伸び、曲げ強度、曲げたわみ量、シャルピー衝撃強度、ウェルド強度、をそれぞれ評価した。これらの結果を表１に示す。
Comparative Example 2
Instead of mixing 300 parts by weight of the glass fiber reinforced polyphenylene sulfide composition pellets obtained in Comparative Example 1 with 100 parts by weight of the pulverized compact, it was obtained in Comparative Example 1 with respect to 100 parts by weight of the pulverized compact. Except for mixing 50 parts by weight of glass fiber reinforced polyphenylene sulfide composition pellets, a test piece for measuring tensile strength, tensile elongation, bending strength and bending deflection, Charpy impact strength by the same method as in Example 3. A test piece for measuring the weld strength and a test piece for measuring the weld strength were molded. Using these test pieces, tensile strength, tensile elongation, bending strength, amount of bending deflection, Charpy impact strength, and weld strength were evaluated. These results are shown in Table 1.
比較例３
実施例２において試験片を作成した際に発生したスプルー・ランナー、また、評価後の試験片を集め、粉砕機により粉砕を行い、平均径０．９ｍｍの成形体粉砕物を得た。
Comparative Example 3
The sprue runner generated when the test piece was prepared in Example 2 and the evaluated test piece were collected and pulverized by a pulverizer to obtain a pulverized compact having an average diameter of 0.9 mm.
該成形体粉砕物１００重量部に対し、比較例１により得られたガラス繊維強化ポリフェニレンスルフィド組成物ペレット２００重量部を混合した後、３１０℃に加熱した射出成形機（住友重機械工業製、（商品名）ＳＥ７５）のホッパーに投入し、引張強度、引張伸び、曲げ強度、曲げたわみ量を測定するための試験片、シャルピー衝撃強度を測定するための試験片、ウェルド強度を測定するための試験片をそれぞれ成形した。その際、射出成形機内への樹脂の噛み混みが悪く成形加工性に劣るものであった。また、これら試験片を用い、引張強度、引張伸び、曲げ強度、曲げたわみ量、シャルピー衝撃強度、ウェルド強度、をそれぞれ評価した。これらの結果を表１に示す。 After mixing 200 parts by weight of the glass fiber reinforced polyphenylene sulfide composition pellets obtained in Comparative Example 1 with 100 parts by weight of the pulverized product, the injection molding machine (Sumitomo Heavy Industries, ( Product name) Put into SE75) hopper, test piece for measuring tensile strength, tensile elongation, bending strength, bending deflection, test piece for measuring Charpy impact strength, test for measuring weld strength Each piece was molded. At that time, the resin was poorly mixed into the injection molding machine and the molding processability was poor. Moreover, using these test pieces, tensile strength, tensile elongation, bending strength, bending deflection, Charpy impact strength, and weld strength were evaluated. These results are shown in Table 1.
比較例４
実施例２において試験片を作成した際に発生したスプルー・ランナー、また、評価後の試験片を集め、粉砕機により粉砕を行い、平均径９．８ｍｍの成形体粉砕物を得た。
Comparative Example 4
The sprue runner generated when the test piece was prepared in Example 2 and the evaluated test piece were collected and pulverized by a pulverizer to obtain a pulverized compact having an average diameter of 9.8 mm.
該成形体粉砕物１００重量部に対し、比較例１により得られたガラス繊維強化ポリフェニレンスルフィド組成物ペレット２００重量部を混合した後、３１０℃に加熱した射出成形機（住友重機械工業製、（商品名）ＳＥ７５）のホッパーに投入し、引張強度、引張伸び、曲げ強度、曲げたわみ量を測定するための試験片、シャルピー衝撃強度を測定するための試験片、ウェルド強度を測定するための試験片の成形を試みたが射出成形機内への樹脂の噛み混みが極めて悪く試験片を得ることが出来なかった。 After mixing 200 parts by weight of the glass fiber reinforced polyphenylene sulfide composition pellets obtained in Comparative Example 1 with 100 parts by weight of the pulverized product, an injection molding machine (manufactured by Sumitomo Heavy Industries, ( Product name) Put into SE75) hopper, test piece for measuring tensile strength, tensile elongation, bending strength, bending deflection, test piece for measuring Charpy impact strength, test for measuring weld strength Attempts were made to mold the pieces, but the resin bite into the injection molding machine was so bad that test pieces could not be obtained.
比較例５
ＰＰＳ−２／ガラス繊維／カルナバワックス／炭酸カルシウム／カーボンブラック＝４９．５／３０／０．５／１９．７／０．３（重量％）の割合となるように、３１０℃に加熱した二軸押出機（東芝機械製、（商品名）ＴＥＭ−３５−１０２Ｂ）用い、スクリュー回転数２００ｒｐｍにて溶融混練し、ダイより流出する溶融組成物を冷却後裁断し、黒色ガラス繊維強化ポリフェニレンスルフィド組成物ペレットを作製した。
Comparative Example 5
PPS-2 / glass fiber / carnauba wax / calcium carbonate / carbon black = 29.5 / 30 / 0.5 / 19.7 / 0.3 (weight%) Using a screw extruder (trade name: TEM-35-102B, manufactured by Toshiba Machine), melt-kneaded at a screw rotation speed of 200 rpm, and the molten composition flowing out from the die was cooled and cut to obtain a black glass fiber reinforced polyphenylene sulfide composition. Material pellets were prepared.
該黒色ガラス繊維強化ポリフェニレンスルフィド組成物ペレットを、３１０℃に加熱した射出成形機（住友重機械工業製、（商品名）ＳＥ７５）のホッパーに投入し、引張強度、引張伸び、曲げ強度、曲げたわみ量を測定するための試験片、シャルピー衝撃強度を測定するための試験片、ウェルド強度を測定するための試験片をそれぞれ成形した。これら試験片を用い、引張強度、引張伸び、曲げ強度、曲げたわみ量、シャルピー衝撃強度、ウェルド強度、をそれぞれ評価した。これらの結果を表１に示す。 The black glass fiber reinforced polyphenylene sulfide composition pellets are put into a hopper of an injection molding machine (manufactured by Sumitomo Heavy Industries, Ltd., (trade name) SE75) heated to 310 ° C., and tensile strength, tensile elongation, bending strength, bending deflection A test piece for measuring the amount, a test piece for measuring Charpy impact strength, and a test piece for measuring weld strength were formed. Using these test pieces, tensile strength, tensile elongation, bending strength, amount of bending deflection, Charpy impact strength, and weld strength were evaluated. These results are shown in Table 1.
実施例４
比較例５において試験片を作成した際に発生したスプルー・ランナー、また、評価後の試験片を集め、粉砕機により粉砕を行い、平均径５．１ｍｍの黒色成形体粉砕物を得た。また、該黒色粉砕物中の粒径０．５ｍｍ以下の成分含有率は１．４重量％であった。
Example 4
The sprue runner generated when the test piece was prepared in Comparative Example 5 and the evaluated test piece were collected and pulverized by a pulverizer to obtain a pulverized black molded product having an average diameter of 5.1 mm. In addition, the content of components having a particle size of 0.5 mm or less in the black pulverized product was 1.4% by weight.
該黒色成形体粉砕物１００重量部に対し、比較例５により得られた黒色ガラス繊維強化ポリフェニレンスルフィド組成物ペレット２００重量部を混合した後、３１０℃に加熱した射出成形機（住友重機械工業製、（商品名）ＳＥ７５）のホッパーに投入し、引張強度、引張伸び、曲げ強度、曲げたわみ量を測定するための試験片、シャルピー衝撃強度を測定するための試験片、ウェルド強度を測定するための試験片をそれぞれ成形した。これら試験片を用い、引張強度、引張伸び、曲げ強度、曲げたわみ量、シャルピー衝撃強度、ウェルド強度、をそれぞれ評価した。これらの結果を表１に示す。 An injection molding machine (manufactured by Sumitomo Heavy Industries, Ltd.) heated to 310 ° C. after mixing 200 parts by weight of the black glass fiber reinforced polyphenylene sulfide composition pellets obtained in Comparative Example 5 with 100 parts by weight of the pulverized black molded body. , (Trade name) SE75) hopper, test piece for measuring tensile strength, tensile elongation, bending strength, bending deflection, test piece for measuring Charpy impact strength, for measuring weld strength Each test piece was molded. Using these test pieces, tensile strength, tensile elongation, bending strength, amount of bending deflection, Charpy impact strength, and weld strength were evaluated. These results are shown in Table 1.
実施例５
実施例４において試験片を作成した際に発生したスプルー・ランナー、また、評価後の試験片を集め、粉砕機により粉砕を行い、平均径４．５ｍｍの黒色成形体粉砕物を得た。また、該黒色粉砕物中の粒径０．５ｍｍ以下の成分含有率は１．６重量％であった。
Example 5
The sprue runner generated when the test piece was prepared in Example 4 and the test piece after evaluation were collected and pulverized by a pulverizer to obtain a black compact pulverized product having an average diameter of 4.5 mm. In addition, the content of components having a particle size of 0.5 mm or less in the black pulverized product was 1.6% by weight.
該黒色成形体粉砕物１００重量部に対し、比較例５により得られた黒色ガラス繊維強化ポリフェニレンスルフィド組成物ペレット２５０重量部を混合した後、３１０℃に加熱した射出成形機（住友重機械工業製、（商品名）ＳＥ７５）のホッパーに投入し、引張強度、引張伸び、曲げ強度、曲げたわみ量を測定するための試験片、シャルピー衝撃強度を測定するための試験片、ウェルド強度を測定するための試験片をそれぞれ成形した。これら試験片を用い、引張強度、引張伸び、曲げ強度、曲げたわみ量、シャルピー衝撃強度、ウェルド強度、をそれぞれ評価した。これらの結果を表１に示す。 After mixing 250 parts by weight of the black glass fiber reinforced polyphenylene sulfide composition pellets obtained in Comparative Example 5 with 100 parts by weight of the black pulverized product, an injection molding machine (manufactured by Sumitomo Heavy Industries, Ltd.) heated to 310 ° C. In order to measure the weld strength, the test piece for measuring the tensile strength, the tensile elongation, the bending strength, the bending deflection, the test piece for measuring the Charpy impact strength. Each test piece was molded. Using these test pieces, tensile strength, tensile elongation, bending strength, amount of bending deflection, Charpy impact strength, and weld strength were evaluated. These results are shown in Table 1.
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| JP2003062854A (en) * | 2001-08-29 | 2003-03-05 | Polyplastics Co | Recycled resin-containing injection-molded object and method for molding the same |
| JP2003191282A (en) * | 2001-12-27 | 2003-07-08 | Ge Plastics Japan Ltd | Method for manufacturing recovered resin molded article |
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