JPH01185360A - Polycarbonate resin composition - Google Patents
Polycarbonate resin compositionInfo
- Publication number
- JPH01185360A JPH01185360A JP750088A JP750088A JPH01185360A JP H01185360 A JPH01185360 A JP H01185360A JP 750088 A JP750088 A JP 750088A JP 750088 A JP750088 A JP 750088A JP H01185360 A JPH01185360 A JP H01185360A
- Authority
- JP
- Japan
- Prior art keywords
- resin composition
- polycaprolactone
- carbon fiber
- parts
- 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.)
- Granted
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 16
- 239000004431 polycarbonate resin Substances 0.000 title claims abstract description 12
- 229920005668 polycarbonate resin Polymers 0.000 title claims abstract description 12
- 239000004417 polycarbonate Substances 0.000 claims abstract description 22
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 16
- 239000004917 carbon fiber Substances 0.000 claims abstract description 16
- 229920001610 polycaprolactone Polymers 0.000 claims abstract description 15
- 239000004632 polycaprolactone Substances 0.000 claims abstract description 15
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229920000515 polycarbonate Polymers 0.000 claims abstract description 10
- 125000003118 aryl group Chemical group 0.000 claims abstract description 8
- 238000001746 injection moulding Methods 0.000 abstract description 10
- 238000000465 moulding Methods 0.000 abstract description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 239000011342 resin composition Substances 0.000 abstract description 5
- 229910052799 carbon Inorganic materials 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract 1
- 239000003365 glass fiber Substances 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 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 5
- -1 carbonyl halide Chemical class 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 150000002989 phenols Chemical class 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 2
- HCNHNBLSNVSJTJ-UHFFFAOYSA-N 1,1-Bis(4-hydroxyphenyl)ethane Chemical compound C=1C=C(O)C=CC=1C(C)C1=CC=C(O)C=C1 HCNHNBLSNVSJTJ-UHFFFAOYSA-N 0.000 description 1
- 125000004203 4-hydroxyphenyl group Chemical group [H]OC1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 229920009204 Methacrylate-butadiene-styrene Polymers 0.000 description 1
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- ROORDVPLFPIABK-UHFFFAOYSA-N diphenyl carbonate Chemical compound C=1C=CC=CC=1OC(=O)OC1=CC=CC=C1 ROORDVPLFPIABK-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 150000002430 hydrocarbons Chemical group 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001955 polyphenylene ether Polymers 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明はポリカーボネート樹脂組成物、特に射出成形時
の金型摩耗の少ない炭素繊維強化ポリカーボネート樹脂
組成物に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a polycarbonate resin composition, particularly a carbon fiber reinforced polycarbonate resin composition that exhibits less mold wear during injection molding.
〈従来技術〉
従来より炭素繊維強化ポリカーボネート樹脂（以下ＣＦ
Ｒ−ＰＣと略す）は、非強化ポリカーホネート樹脂に比
べて剛性２寸法安定性に優れているため剛性１寸法績度
を必要とする機構部品用の材料として各分野に広く利用
されている。また、炭素繊維゛の添加量を増すと、導電
性が高くなることも知られており、この特性を必要とす
る分野への利用も増加してきた。<Conventional technology> Conventionally, carbon fiber reinforced polycarbonate resin (hereinafter referred to as CF)
R-PC (abbreviated as R-PC) has superior rigidity and stability in two dimensions compared to non-reinforced polycarbonate resin, so it is widely used in various fields as a material for mechanical parts that require performance in one dimension of rigidity. . It is also known that increasing the amount of carbon fiber added increases conductivity, and its use in fields that require this property has also increased.
一方、ガラス繊維強化ポリカーボネート樹脂（以下ＧＦ
Ｒ−ＰＣと略す）も剛性２寸法安定性に優れているため
、従来よりダイキャストの他金属部品の代替に広く使用
されている。ＧＦＲ−Ｐ 。On the other hand, glass fiber reinforced polycarbonate resin (hereinafter referred to as GF
R-PC) also has excellent rigidity and two-dimensional stability, so it has been widely used as a substitute for metal parts other than die casting. GFR-P.
ＣとＣＦＲ−ＰＣを比較すると、ＣＦＲ−ＰＣは炭素繊
維の持つ特性のため射出成形時の成形収縮率が殆んどな
く、また線膨脹係数も非常に小さいため、ＣＦＲ−ＰＣ
はより精度の高い精密部品に使用されている。Comparing CFR-PC with CFR-PC, CFR-PC has almost no molding shrinkage during injection molding due to the characteristics of carbon fiber, and has a very small coefficient of linear expansion.
is used for precision parts with higher precision.
しかしながら、ＣＦＲ−ＰＣの成形においては、金型の
摩耗が激しいという欠点がある。特に、精密部品の射出
成形において、金型の摩耗は成形品の寸法や形状の変化
を引き起こすため早急な対策が望まれていた。However, in molding CFR-PC, there is a drawback in that the mold is subject to severe wear. Particularly in injection molding of precision parts, wear of the mold causes changes in the dimensions and shape of the molded product, so immediate countermeasures are desired.
〈発明の目的〉
本発明の目的は、射出成形時の金型摩耗の少ない炭素繊
維強化ポリカーボネート樹脂組成物を提供することにあ
る。<Object of the Invention> An object of the present invention is to provide a carbon fiber-reinforced polycarbonate resin composition that exhibits less mold wear during injection molding.
〈発明の構成〉
本発明は、（Ａ）芳香族ポリカーボネート９９〜９０重
量％及び（Ｂ）ポリカプロラクトン１〜１０重量％から
なる混合物１００重量部に対し、（Ｃ）炭素繊維３〜６
０重量部を配合したことを特徴とするポリカーボネート
樹脂組成物に係るものである。<Structure of the Invention> The present invention is based on 100 parts by weight of a mixture consisting of (A) 99 to 90% by weight of aromatic polycarbonate and (B) 1 to 10% by weight of polycaprolactone, and (C) 3 to 6% of carbon fibers.
This relates to a polycarbonate resin composition characterized in that 0 parts by weight of the polycarbonate resin composition is blended.
本発明において使用する芳香族ポリカーボネ−１〜は、
２価フェノールより誘導される平均分子量ｉｏ、ｏｏｏ
〜１００，０００ 、好ましくは１５，０００〜６０，
０００のポリカーボネートで必り、通常２価フェノール
とカーボネート前駆体との溶液法又は溶融法で製造され
る。２価フェノールの代表的な例を挙げるとビスフェノ
ールＡ ［２，２−ビス（４−ヒドロキシフェニル）プ
ロパン］、ビス（４−ヒドロキシフェニル）メタン、１
，１−ビス（４−ヒドロキシフェニル）エタン、２，２
−ビス（４−ヒドロキシ−３−メヂルフェニル）プロパ
ン等がある。好ましい２価フェノールはビス（４−ヒド
ロキシフェニル）アルカン系化合物、特にビスフェノー
ルＡである。２価フェノールは単独で、又は２種以上混
合して使用することができる。また前記カーボネート前
駆体としては、カルボニルハライド、カーボネート又は
ハロホルメート等を挙げることができる。代表的な例と
しては、ホスゲン、ジフェニルカーボネート、２価フェ
ノールのジハロホルメート及びこれらの混合物が挙げら
れる。Aromatic polycarbonate 1 to be used in the present invention is
Average molecular weight derived from dihydric phenol io, ooo
~100,000, preferably 15,000-60,
000 polycarbonate is usually manufactured by a solution method or a melt method using dihydric phenol and a carbonate precursor. Representative examples of dihydric phenols include bisphenol A [2,2-bis(4-hydroxyphenyl)propane], bis(4-hydroxyphenyl)methane, 1
, 1-bis(4-hydroxyphenyl)ethane, 2,2
-bis(4-hydroxy-3-medylphenyl)propane and the like. Preferred dihydric phenols are bis(4-hydroxyphenyl)alkane compounds, particularly bisphenol A. Dihydric phenols can be used alone or in combination of two or more. Further, examples of the carbonate precursor include carbonyl halide, carbonate, and haloformate. Representative examples include phosgene, diphenyl carbonate, dihaloformates of dihydric phenols, and mixtures thereof.
芳香族ポリカーボネートの製造に際しては適当な分子量
調節剤２分岐剤、触媒等も使用できる。In the production of aromatic polycarbonate, suitable molecular weight regulators, bibranching agents, catalysts, etc. can also be used.
本発明において用いられるポリカプロラクトンは、カプ
ロラクトン特にε−カプロラクトンの重合物、即ち一般
式
％式％
て示されるポリマーを用いることができる。ポリカプロ
ラクトンのメチレン鎖の水素原子の一部又は全部がハロ
ゲン原子、炭化水素基等で置換されていてもよいが、上
記一般式で示されるポリカプロラクトンを使用すること
が好ましい。上記一般式のポリカプロラクトンの末端は
エステル化等により、末端処理してあってもよい。通常
ポリカプロラクトンは１，０００〜３００．０００の平
均分子量を有し、その融点はおおよそ６０°Ｃ，ガラス
転移温度はおおよそ一６０°Ｃである。本発明において
は１０，０００〜６０．０００の平均分子量を有してい
るポリカプロラフ１〜ンを用いるのが好ましい。As the polycaprolactone used in the present invention, a polymer of caprolactone, particularly ε-caprolactone, that is, a polymer represented by the general formula % can be used. Although some or all of the hydrogen atoms in the methylene chain of polycaprolactone may be substituted with halogen atoms, hydrocarbon groups, etc., it is preferable to use polycaprolactone represented by the above general formula. The terminal ends of the polycaprolactone of the above general formula may be treated by esterification or the like. Typically, polycaprolactone has an average molecular weight of 1,000 to 300,000, a melting point of approximately 60°C, and a glass transition temperature of approximately -60°C. In the present invention, it is preferable to use polycaprofluorine having an average molecular weight of 10,000 to 60,000.
このようなポリカプロラクトンは、例えばカプロラフ１
〜ンを酸、塩基、有機金属化合物等の触媒の存在下、開
環重合して製造することができる。Such polycaprolactone is, for example, Caprolav 1
It can be produced by ring-opening polymerization of .
本発明に使用する炭素繊維は、一般にセルロース繊維、
アクリル繊維、リグニン、石油又は炭素系特種ピッチ等
を原料として焼成によって製造されたものでおり、耐炎
質、炭素質又は黒鉛質等の種々のタイプのものがある。The carbon fibers used in the present invention are generally cellulose fibers,
It is manufactured by firing using acrylic fiber, lignin, petroleum or carbon-based special pitch, etc. as raw materials, and there are various types such as flame-resistant, carbonaceous, and graphite.
炭素繊維の長さは通常、押出されたペレット中で０，０
１〜６ｍｍの範囲にあり、繊維径は３〜１５μの範囲に
ある。この炭素繊維はチョップトストランド、ロービン
グストランド、ミルドファイバー等いずれの形状のもの
も使用できる。炭素繊維の表面は樹脂との親和性を増す
ために表面処理、例えばエポキシ処理、ウレタン処理、
酸化処理等が施されていても差支えない。The length of carbon fibers is usually 0,0 in extruded pellets.
The fiber diameter is in the range of 1 to 6 mm, and the fiber diameter is in the range of 3 to 15 μ. This carbon fiber can be in any shape such as chopped strand, roving strand, milled fiber, etc. The surface of carbon fiber is treated with surface treatments such as epoxy treatment, urethane treatment, etc. to increase its affinity with resin.
There is no problem even if the material is subjected to oxidation treatment or the like.
本発明の樹脂組成物は上記３種類の成分を混合すること
により製造される。混合割合は、芳香族ポリカーボネー
ト９９〜９０重最％及びポリカプロラクトン１〜１０重
量％からなる混合物１００重量部に対し、炭素繊維３〜
６０重量部である。The resin composition of the present invention is produced by mixing the above three types of components. The mixing ratio is 3 to 3 parts by weight of carbon fiber to 100 parts by weight of a mixture consisting of 99 to 90% by weight of aromatic polycarbonate and 1 to 10% by weight of polycaprolactone.
It is 60 parts by weight.
ＣＦＲ−ＰＣとＧＦＲ−ＰＣを成形時の金型摩耗につい
て比較すると、ＣＦＲ−ＰＣの方がはるかに大きく、Ｃ
ＦＲ−ＰＣ用の金型材は、特殊な鋼を使用し、金型メー
カーのノーハウにもなっている程でおる。かかる激しい
金型摩耗が少量のポリラクトンの添加によって１７２又
はそれ以下に低減することは正に驚くべきことである。Comparing CFR-PC and GFR-PC in terms of mold wear during molding, CFR-PC has much greater CFR-PC.
The mold material for FR-PC uses special steel, which has become the know-how of mold manufacturers. It is truly surprising that such severe mold wear is reduced to 172 or less by the addition of small amounts of polylactone.
ポリカプロラクトンの添加量が１重恒％未満では、金型
摩耗を低減する効果がなく、１０重量％を越えると、機
械的特性及び熱的性質（特に荷重たわみ温度）が低下す
るので適当でない。炭素繊維が３重量部未満ては、機械
的性質の向上効果が小さく、また６０重量部を越えると
成形性か極端に低下する。If the amount of polycaprolactone added is less than 1% by weight, there is no effect of reducing mold wear, and if it exceeds 10% by weight, the mechanical properties and thermal properties (particularly the deflection temperature under load) will deteriorate, which is not appropriate. If the amount of carbon fiber is less than 3 parts by weight, the effect of improving mechanical properties will be small, and if it exceeds 60 parts by weight, moldability will be extremely reduced.
本発明の樹脂組成物にカラス繊維を併用しても構わない
。それはガラス繊維による金型摩耗が極めて少ないから
である。併用するガラス繊維量は、炭素繊維の４重量倍
以下が好ましい。使用するガラス繊維は、通常ポリカー
ボネートに使用されるものであれば差支えない。好まし
いガラス繊維は、直径５〜２０μであり、成形品中のガ
ラス繊維の長さは２ｍｍ以下である。ガラス繊維は、樹
脂との親和性を向上させる目的てシランカップリング剤
等の表面処理、また取扱い性を向上させる目的でアクリ
ル系樹脂、ウレタン樹脂又はポリカーボネート樹脂等で
集束処理が施されているのが好ましい。Glass fibers may also be used in combination with the resin composition of the present invention. This is because mold wear due to glass fibers is extremely low. The amount of glass fiber used in combination is preferably 4 times or less the weight of carbon fiber. The glass fiber to be used may be any glass fiber normally used for polycarbonate. A preferred glass fiber has a diameter of 5 to 20 microns, and the length of the glass fiber in the molded article is 2 mm or less. Glass fibers are surface treated with silane coupling agents to improve their affinity with resins, and bundled with acrylic resins, urethane resins, polycarbonate resins, etc. to improve handling properties. is preferred.
本発明の樹脂組成物は、これら３種類の成分をタンブラ
−、ブレンダー、ナウターミキサ−、バンバリーミキサ
−２混練ロール、押出機等の如き混合機により混合して
製造することができる。更に本発明の目的を損なわない
範囲内でポリフェニレンエーテル、ポリエーテルスルホ
ン、ＰＳ樹脂。The resin composition of the present invention can be produced by mixing these three components in a mixer such as a tumbler, blender, Nauta mixer, Banbury mixer 2 kneading roll, or extruder. Furthermore, polyphenylene ether, polyether sulfone, and PS resin within a range that does not impair the purpose of the present invention.
Ａｓ樹脂、ＡＢＳ樹脂、ＭＢＳ樹脂、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等の他樹脂、
安定剤、酸化防止剤２着色剤、離型剤、紫外線吸収剤等
を添加してもよい。Other resins such as As resin, ABS resin, MBS resin, polyethylene terephthalate, polybutylene terephthalate,
Stabilizers, antioxidants, colorants, mold release agents, ultraviolet absorbers, etc. may be added.
〈発明の効果〉
本発明の樹脂組成物は、任意の成形方法、例えば射出成
形、押出成形、圧縮成形１回転成形等に適用できるが、
特に精密部品の射出成形用材料として有用である。特に
カメラ部品、０１ｆｌ器部品に好適である。<Effects of the Invention> The resin composition of the present invention can be applied to any molding method, such as injection molding, extrusion molding, compression molding, and single rotation molding.
It is particularly useful as an injection molding material for precision parts. It is particularly suitable for camera parts and 01fl device parts.
〈実施例〉
以下に実施例を挙げて、本発明を説明する。金型の摩耗
状況は下記の方法で評価した。<Example> The present invention will be described below with reference to Examples. The wear status of the mold was evaluated by the following method.
金型摩耗の評価
図１に示すような成形品を２０００シヨツト成形し、成
形前後のイヌキピン（材質アルミニウム）の重量を測定
し、その重量減少を調べた。Evaluation of mold wear: 2000 shots of the molded product shown in Figure 1 were molded, and the weight of the pin (made of aluminum) before and after molding was measured to examine the weight loss.
使用した成形機及び成形条件は以下の通りである。The molding machine and molding conditions used are as follows.
成形機二日本製鋼所＠Ｊ−１２０ＳＡ
実施例１〜４及び比較例１〜６
芳香族ポリカーボネートを１２０°Ｃで６時間熱風循環
式乾燥機にて乾燥した後、第１表に示した配合組成でタ
ンブラ−にて予備混合した後、直ちにシリンダー温度を
３００ ’Ｃに設定した単軸ベント式押出機（ナカタ二
銖、 ＶＳＫ−３０）を用いてペレット化した。Molding machine 2 Japan Steel Works @ J-120SA Examples 1 to 4 and Comparative Examples 1 to 6 After drying the aromatic polycarbonate at 120°C for 6 hours in a hot air circulation dryer, the composition shown in Table 1 was obtained. After premixing in a tumbler, the mixture was immediately pelletized using a single-screw vent extruder (Nakata Nikon, VSK-30) with a cylinder temperature of 300'C.
得られたペレットを１２０’Ｃで６時間乾燥した後、シ
リンダー温度３００°Ｃ２金型温度１００°Ｃにて各種
物性測定用テスト片を射出成形した。なお、射出成形機
は日本製鋼所■のＪ−１２０ＳＡを使用した。結果を第
１表に示す。After drying the obtained pellets at 120'C for 6 hours, test pieces for measuring various physical properties were injection molded at a cylinder temperature of 300°C and a mold temperature of 100°C. The injection molding machine used was J-120SA manufactured by Japan Steel Works (■). The results are shown in Table 1.
第１表の比較例３と比較例６を比べると炭素域＝ ９−
維がガラス繊維に比して如何に激しく金型を摩耗するか
が明らかである。また、比較例５と比較例６を比べると
、ガラス繊維の金型摩耗に対してはポリカプロラクトン
の効果がみられない。それに対し、実施例１〜４と比較
例１〜４を比べるとポリカプロラクトンの添加は、炭素
繊維による金型摩耗を１７２又はそれ以下に低減するこ
とが明らかである。Comparing Comparative Example 3 and Comparative Example 6 in Table 1, it is clear how the carbon region = 9- fiber wears the mold more severely than the glass fiber. Further, when Comparative Example 5 and Comparative Example 6 are compared, no effect of polycaprolactone is seen on mold wear of glass fibers. On the other hand, when comparing Examples 1 to 4 and Comparative Examples 1 to 4, it is clear that the addition of polycaprolactone reduces the mold wear due to carbon fiber to 172 mm or less.
図１は金型摩耗の評価に使用するイヌキピンの形状２寸
法を示す図である。図中の数値はイヌキピンの寸法（単
位ｍｍ）を示す。
図、１FIG. 1 is a diagram showing two dimensions of the shape of the pin used to evaluate mold wear. The numerical values in the figure indicate the dimensions (unit: mm) of the dog pin. Figure, 1
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP750088A JPH068385B2 (en) | 1988-01-19 | 1988-01-19 | Polycarbonate resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP750088A JPH068385B2 (en) | 1988-01-19 | 1988-01-19 | Polycarbonate resin composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01185360A true JPH01185360A (en) | 1989-07-24 |
| JPH068385B2 JPH068385B2 (en) | 1994-02-02 |
Family
ID=11667500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP750088A Expired - Fee Related JPH068385B2 (en) | 1988-01-19 | 1988-01-19 | Polycarbonate resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH068385B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2427195A (en) * | 2005-06-13 | 2006-12-20 | Veterinary Innovations Ltd | Biocompatible thermoplastics containing carbon fibre and devices for treating bone fractures |
| US7381763B2 (en) | 2002-03-27 | 2008-06-03 | Teijin Chemicals, Ltd. | Flame retardant aromatic polycarbonate resin composition |
| CN104559104A (en) * | 2013-10-28 | 2015-04-29 | 中国石油化工股份有限公司 | Wear-resistant carbon fiber reinforced polycarbonate resin composition and preparation method thereof |
-
1988
- 1988-01-19 JP JP750088A patent/JPH068385B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7381763B2 (en) | 2002-03-27 | 2008-06-03 | Teijin Chemicals, Ltd. | Flame retardant aromatic polycarbonate resin composition |
| GB2427195A (en) * | 2005-06-13 | 2006-12-20 | Veterinary Innovations Ltd | Biocompatible thermoplastics containing carbon fibre and devices for treating bone fractures |
| CN104559104A (en) * | 2013-10-28 | 2015-04-29 | 中国石油化工股份有限公司 | Wear-resistant carbon fiber reinforced polycarbonate resin composition and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH068385B2 (en) | 1994-02-02 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |