JPH0415825B2 - - Google Patents
Info
- Publication number
- JPH0415825B2 JPH0415825B2 JP58090361A JP9036183A JPH0415825B2 JP H0415825 B2 JPH0415825 B2 JP H0415825B2 JP 58090361 A JP58090361 A JP 58090361A JP 9036183 A JP9036183 A JP 9036183A JP H0415825 B2 JPH0415825 B2 JP H0415825B2
- Authority
- JP
- Japan
- Prior art keywords
- pps resin
- average fiber
- fiber
- ptw
- present
- 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.)
- Expired - Lifetime
Links
- 239000000835 fiber Substances 0.000 claims description 40
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 29
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 29
- 229920005989 resin Polymers 0.000 claims description 16
- 239000011347 resin Substances 0.000 claims description 16
- 239000011342 resin composition Substances 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 6
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 claims description 5
- -1 epoxysilane Chemical compound 0.000 claims description 4
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 claims description 2
- TXDNPSYEJHXKMK-UHFFFAOYSA-N sulfanylsilane Chemical compound S[SiH3] TXDNPSYEJHXKMK-UHFFFAOYSA-N 0.000 claims description 2
- 239000002480 mineral oil Substances 0.000 claims 1
- 235000010446 mineral oil Nutrition 0.000 claims 1
- UKRDPEFKFJNXQM-UHFFFAOYSA-N vinylsilane Chemical compound [SiH3]C=C UKRDPEFKFJNXQM-UHFFFAOYSA-N 0.000 claims 1
- 239000003365 glass fiber Substances 0.000 description 7
- 229920000049 Carbon (fiber) Polymers 0.000 description 6
- 239000004917 carbon fiber Substances 0.000 description 6
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000000704 physical effect Effects 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 229920013632 Ryton Polymers 0.000 description 4
- 239000004736 Ryton® Substances 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 3
- 239000007822 coupling agent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000011591 potassium Substances 0.000 description 3
- 229910052700 potassium Inorganic materials 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000012778 molding material Substances 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- DQZNLOXENNXVAD-UHFFFAOYSA-N trimethoxy-[2-(7-oxabicyclo[4.1.0]heptan-4-yl)ethyl]silane Chemical compound C1C(CC[Si](OC)(OC)OC)CCC2OC21 DQZNLOXENNXVAD-UHFFFAOYSA-N 0.000 description 2
- LVNLBBGBASVLLI-UHFFFAOYSA-N 3-triethoxysilylpropylurea Chemical compound CCO[Si](OCC)(OCC)CCCNC(N)=O LVNLBBGBASVLLI-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 102200082816 rs34868397 Human genes 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 1
- YUYCVXFAYWRXLS-UHFFFAOYSA-N trimethoxysilane Chemical compound CO[SiH](OC)OC YUYCVXFAYWRXLS-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Description
本発明はポリフエニレンサルフアイド樹脂（以
下、PPS樹脂という）組成物に関する。さらに詳
しくは精密成形性、耐衝撃性および耐摩耗性に優
れたPPS樹脂組成物に関する。
PPS樹脂は耐熱性、難燃性、耐薬品性および寸
法安定性に優れており特殊エンジニアリングプラ
スチツクスの中でもとくに注目され需要が増大し
てきているが、PPS樹脂単独では非常に脆いた
め、従来よりガラス繊維または炭素繊維を強化材
として含有するPPS樹脂組成物が成形用コンパウ
ンドとして販売されている。
しかしながら前記ガラス繊維または炭素繊維は
一般にその平均繊維径が３〜13μm、平均繊維長
が２mm以上と繊維サイズが比較的大きいため、そ
れらを強化材として含有する前記PPS樹脂組成物
をゲイト口径0.6mm以下で薄肉部品や薄密部品に
射出成形するばあい、射出圧力を2000〜4000Kg／
cm2に高めても前記組成物はゲイトを通過せず、所
望の成形品はえられないのが現状である。
一方強化材を含有しないPPS樹脂単独ではゲイ
ト口径が0.6mm以下であつても射出成形可能であ
るが、上述したごとく非常に脆いためえられた成
形品は機構部品として実用性がない。
本発明者らは叙上の実情に鑑み、成形加工時の
問題を解消するとともに満足な物理的特性を有す
る成形品を与えるPPS樹脂組成物を開発する目的
で各種ミクロ強化材料およびその表面処理法につ
き鋭意研究を重ねた結果、PPS樹脂に平均繊維径
1μm以下、平均繊維長５〜100μm、アスペクト比
10以上の短繊維であるチタン酸カリウム繊維を５
〜70％（重量％、以下同様）含有することを特徴
とするPPS樹脂組成物が上記目的を果たし、とく
に耐摩耗性、表面状態、鏡面光沢度、なかんづく
耐衝撃性についてはガラス繊維または炭素繊維強
化樹脂組成物よりも優れた成形品を与えうること
を見出し、本発明を完成するにいたつた。
本発明に用いられるPPS樹脂は一般式
The present invention relates to a polyphenylene sulfide resin (hereinafter referred to as PPS resin) composition. More specifically, the present invention relates to a PPS resin composition that has excellent precision moldability, impact resistance, and abrasion resistance. PPS resin has excellent heat resistance, flame retardance, chemical resistance, and dimensional stability, and has attracted particular attention among special engineering plastics, and demand is increasing.However, PPS resin alone is extremely brittle, so it PPS resin compositions containing fiber or carbon fiber as reinforcement are sold as molding compounds. However, the glass fiber or carbon fiber generally has a relatively large fiber size, with an average fiber diameter of 3 to 13 μm and an average fiber length of 2 mm or more, so the PPS resin composition containing them as a reinforcing material is When injection molding thin wall parts or thin parts below, the injection pressure should be 2000~4000Kg/
At present, even if the temperature is increased to cm 2 , the composition does not pass through the gate and a desired molded product cannot be obtained. On the other hand, injection molding of PPS resin alone without reinforcing material is possible even if the gate diameter is 0.6 mm or less, but as mentioned above, the resulting molded product is extremely brittle and is not practical as a mechanical part. In view of the above-mentioned circumstances, the present inventors have developed various micro-reinforced materials and their surface treatment methods for the purpose of developing a PPS resin composition that solves problems during molding processing and provides molded products with satisfactory physical properties. As a result of intensive research, we found that the average fiber diameter of PPS resin
1μm or less, average fiber length 5-100μm, aspect ratio
5 potassium titanate fibers, which are short fibers of 10 or more.
A PPS resin composition characterized by containing ~70% (by weight, same hereinafter) fulfills the above purpose, and is particularly effective in terms of abrasion resistance, surface condition, specular gloss, and above all, impact resistance, compared to glass fiber or carbon fiber. It was discovered that a molded article superior to that of a reinforced resin composition can be obtained, and the present invention was completed. The PPS resin used in the present invention has the general formula
【式】で示される結晶性、熱可塑
性樹脂であるが、本発明においては「ライトンＰ
−４」（商品名、フイリツプス・ペトローリアム
社製のPPS樹脂、一般グレード品、粉末状）や
「ライトンＲ−６」（商品名、保土谷化学工業(株)製
のPPS樹脂、ライトンＰ−４をペレツト化したも
の）をそのまま使用することができる。また溶融
粘度調整のために一部「ライトンＰ−６」（商品
名、フイリツプス・ペトローリアム社製のPPS樹
脂、低重合度品、粉末状）を前記「ライトンＰ−
４」または「ライトンＲ−６」に代えて使用して
もよい。
本発明において使用されるチタン酸カリウム繊
維は一般式：
K2O・ｎ（TiO2）
または
K2O・ｎ（TiO2）・1/2H2O
（式中、ｎは２〜８の整数を表わす）で示され
る単結晶繊維であり、具体的にはたとえば４チタ
ン酸カリウム繊維、６チタン酸カリウム繊維また
は８チタン酸カリウム繊維などの単一組成物ある
いはこれらの混合組成物であつてもよく、平均繊
維径1μm以下、平均繊維長５〜100μmでかつ平均
繊維長／平均繊維径（アスペクト比）が10以上の
ものである。
ここで、チタン酸カリウム繊維（以下、PTW
という）の平均繊維径、平均繊維長およびアスペ
クト比の測定は、走査型電子顕微鏡により、少な
くとも視野数５以上で、かつ１視野あたり少なく
とも10繊維以上の繊維について測定したものであ
り、アスペクト比とは該繊維の繊維長を繊維径で
除した平均の値を指すものである。
PTWの平均繊維径、平均繊維長およびアスペ
クト比が前記範囲をはずれるばあい、たとえば平
均繊維径が1μmよりも大で、平均繊維長が5μmよ
り小、すなわちアスペクト比が10よりも小である
と成形品を強化する効果が小さく好ましくない。
また平均繊維長100μmよりも大の長繊維は工業的
に製造することが困難であり、未だ市販されてい
ない。
本発明において使用されるPTWは「テイスモ」
（TISMO、大塚化学薬品(株)製）なる商標名で市
販されているものがそのまま使用でき、これは平
均繊維径0.2〜0.5μm、平均繊維長10〜20μm、ア
スペクト比20〜100の高強度単結晶ホイスカーで
ある。
PPS樹脂は本来各種充填材との親和性が良好な
ため、配合せしめるPTWにとくに表面処理を施
さなくともある程度の補強効果がえられるが、本
発明者らは特定のカツプリング剤で表面処理され
たPTWを用いることにより物性改良効果が遥か
に優れることを見出した。
かかるカツプリング剤としては、たとえばγ−
メタクリロキシプロピルトリメトキシシラン、ビ
ニルトリメトキシシランなどのビニルシラン、β
−（３，４−エポキシシクロヘキシル）エチルト
リメトキシシラン、γ−グリシドキシプロピルト
リメトキシシランなどのエポキシシラン、γ−ウ
レイドプロピルトリエトキシシラン、セシルアミ
ノプロピルトリメトキシシランなどのアミノシラ
ンおよびγ−メルカプトプロピルトリメトキシシ
ランなどのメルカプトシランなどのシランカツプ
リング剤の１種以上、とくにγ−メタクリロキシ
プロピルトリメトキシシランが濡れ性および機械
的物性の観点から好ましく用いられる。かかるカ
ツプリング剤の使用量はPTWに対して0.2〜５％
が好適である。
本発明のPPS樹脂組成物は従来使用されている
混練押出機、たとえば単軸押出機または二軸押出
機でPPS樹脂とPTWとを混練することにより製
造される。
PTWのPPS樹脂への配合量は物性改良効果の
面から全成形材料中５〜70％が好ましく、とくに
約30〜60％であればさらに好適である。
上記配合量が５％未満であると強化効果が充分
でなく、一方70％を超えるとPTWのPPS樹脂へ
の混練が困難になるとともに射出成形時の樹脂組
成物の流れ性がわるくなるため精密成形性に問題
が生じ好ましくない。
また本発明のPPS樹脂組成物にガラス繊維、炭
素繊維、シリカ、MoS2、グラフアイト、PTFE
など他の充填材を、精密成形性、耐衝撃性および
耐摩耗性に支障を及ぼさない範囲で適宜配合する
ことができる。
本発明のPPS樹脂組成物を通常の成形法、すな
わち射出成形法、圧縮成形法、押出成形法などで
成形加工することにより、耐熱性、機械的強度、
硬さ、寸法安定性、耐薬品性、耐摩耗性、表面光
沢および難燃性に一段と優れ、従来のエンジニア
リングプラスチツクスの使用領域を越えてアルミ
ニウム、亜鉛、ダイカストなどの金属部品に代わ
つて適用しうる成形品がえられる。
またガラス繊維のモース硬度6.5に比べPTWの
それは４と小さいため、本発明のPPS樹脂組成物
は成形時にシリンダ、スクリユおよび金型などの
成形機械を摩耗したり傷つけたりすることが少な
い。
一方PTWにおいてもそれが微細な繊維である
ため、成形途中での繊維破損が少なく、再生品の
PTWを使用しても本発明のPPS樹脂組成物は従
来のガラス繊維や炭素繊維を使用したものと比べ
て物性低下が少なく、PTWのリサイクル性が良
好である。
さらに本発明のPPS樹脂組成物からえられた成
形品を摺動部材に用いたばあい、該成形品ととも
にその相手材料、とりわけアルミニウムなどの柔
かい相手材料の摩耗量が少ないということは特筆
に値する。
本発明のPPS樹脂組成物は、従来のガラス繊維
や炭素繊維強化PPS樹脂組成物では成形が困難で
あつた腕時計の歯車など精密部品の製造に適用す
ることができ、外観（美感）や耐衝撃性の要求さ
れる各種ハウジング素材に最適な成形品を提供す
る。
またリサイクル性が良好で加工機械のメンテナ
ンスもよく、省資源、省エネルギー型の成形材料
として実用的価値が大きい。
以下実施例に基づいて本発明をさらに詳しく説
明するが本発明はかかる実施例のみに限定される
ものではない。
実施例１〜７および比較例１〜２
第１表に示すごとく各配合組成成分をプレンダ
ーで混合し、65m／ｍ単軸スクリユ押出機を用い
て押出温度340℃で溶融混和したのちペレタイザ
にてペレツト状に加工した。
かくしてえられたペレツトを、射出温度320℃、
金型温度120℃、射出圧力（１次圧）1200Kgｆ／
cm2、射出圧力（保圧）500Kgｆ／cm2、射出速度80
c.c.／秒および射出保圧時間20秒の条件で射出成形
することにより下記試験法に従つた試験片をそれ
ぞれ成形し、それらの物性測定を行なつた。
引張強さ：JIS Ｋ 7113 １号形試験片
アイゾツト衝撃値：JIS Ｋ 7110 Ｖノツチ入
り
鏡面光沢度：JIS Ｚ 8741 Gs（60）
100mmφ×３mm 円板
比摩耗量：鈴木式摩耗試験機
荷重３Kgｆ／cm2、速度100cm／秒、
相手材S45C
相手材比摩耗量： 同 上
各測定結果を第１表に示す。
また実施例１〜５で用いたテイスモーＤ（大塚
化学薬品(株)製、商標名）は表面無処理品、実施例
６で用いたそれはγ−メタクリロキシプロピルト
リメトキシシランで表面処理されたもの、および
実施例７で用いたそれはβ−（３，４−エポキシ
シクロヘキシル）エチルトリメトキシシランで表
面処理されたものである。また比較例２で用いた
ガラス繊維は繊維径約10μm、繊維長３mmのチヨ
ツプドストランド品である。
第１表から明らかなように本発明にしたがつて
PPS樹脂にPTWを配合したものからえられた成
形品のほとんどの物性値が向上しており、とくに
耐衝撃性の改良効果が顕著であるが、なかんづく
PTWをカツプリング剤で処理したばあいの改良
効果が優れている。It is a crystalline, thermoplastic resin represented by the formula [Formula].
-4" (product name, PPS resin manufactured by Philips Petroleum, general grade, powder) and "Ryton R-6" (product name, PPS resin manufactured by Hodogaya Chemical Co., Ltd., Ryton P-4) can be used as is. In addition, in order to adjust the melt viscosity, a portion of "Ryton P-6" (trade name, PPS resin manufactured by Phillips Petroleum, low polymerization degree product, powder form) was added to
4" or "Ryton R-6". The potassium titanate fiber used in the present invention has the general formula: K 2 O.n (TiO 2 ) or K 2 O.n (TiO 2 ).1/2H 2 O (wherein, n is an integer from 2 to 8. It is a single-crystal fiber represented by ), specifically, for example, even if it is a single composition such as potassium tetratitanate fiber, potassium hexatitanate fiber or potassium octitanate fiber, or a mixed composition thereof. Usually, the average fiber diameter is 1 μm or less, the average fiber length is 5 to 100 μm, and the average fiber length/average fiber diameter (aspect ratio) is 10 or more. Here, potassium titanate fiber (hereinafter referred to as PTW)
Measurement of the average fiber diameter, average fiber length, and aspect ratio of (hereinafter referred to as ) is the measurement of fibers with at least 5 fields of view and at least 10 fibers per field of view using a scanning electron microscope. refers to the average value obtained by dividing the fiber length of the fiber by the fiber diameter. If the average fiber diameter, average fiber length, and aspect ratio of PTW are out of the above range, for example, if the average fiber diameter is larger than 1 μm and the average fiber length is smaller than 5 μm, that is, the aspect ratio is smaller than 10. This is not preferable because the effect of strengthening the molded product is small.
Furthermore, long fibers with an average fiber length of more than 100 μm are difficult to produce industrially and are not yet commercially available. The PTW used in the present invention is "Teismo"
(TISMO, manufactured by Otsuka Chemical Co., Ltd.), which is commercially available under the trade name of Otsuka Chemical Co., Ltd., can be used as is. It is a single crystal whisker. Since PPS resin originally has good affinity with various fillers, a certain degree of reinforcing effect can be obtained without any particular surface treatment of the PTW to which it is blended. We have found that the effect of improving physical properties is far superior by using PTW. Such coupling agents include, for example, γ-
Vinylsilanes such as methacryloxypropyltrimethoxysilane, vinyltrimethoxysilane, β
- Epoxysilanes such as (3,4-epoxycyclohexyl)ethyltrimethoxysilane, γ-glycidoxypropyltrimethoxysilane, aminosilanes such as γ-ureidopropyltriethoxysilane, cecylaminopropyltrimethoxysilane, and γ-mercaptopropyl One or more silane coupling agents such as mercaptosilanes such as trimethoxysilane, particularly γ-methacryloxypropyltrimethoxysilane, are preferably used from the viewpoint of wettability and mechanical properties. The amount of such coupling agent used is 0.2 to 5% of PTW.
is suitable. The PPS resin composition of the present invention is produced by kneading PPS resin and PTW in a conventionally used kneading extruder, such as a single-screw extruder or a twin-screw extruder. The amount of PTW added to the PPS resin is preferably 5 to 70% of the total molding material, particularly preferably about 30 to 60%, from the viewpoint of improving physical properties. If the above blending amount is less than 5%, the reinforcing effect will not be sufficient, while if it exceeds 70%, it will be difficult to mix PTW into PPS resin and the flowability of the resin composition during injection molding will deteriorate, resulting in precision This is not preferable because it causes problems in moldability. The PPS resin composition of the present invention also contains glass fiber, carbon fiber, silica, MoS 2 , graphite, and PTFE.
Other fillers such as these can be appropriately blended within a range that does not affect precision moldability, impact resistance, and abrasion resistance. Heat resistance, mechanical strength, and
With superior hardness, dimensional stability, chemical resistance, abrasion resistance, surface gloss, and flame retardancy, it can be applied beyond the scope of traditional engineering plastics to replace metal parts such as aluminum, zinc, and die-casting. You can get moist molded products. Furthermore, since the Mohs hardness of PTW is 4, which is smaller than that of glass fiber, which is 6.5, the PPS resin composition of the present invention is less likely to wear or damage molding machines such as cylinders, screws, and molds during molding. On the other hand, since the fibers in PTW are fine, there is less fiber breakage during molding, and recycled products are
Even when PTW is used, the PPS resin composition of the present invention shows less deterioration in physical properties than those using conventional glass fibers or carbon fibers, and PTW has good recyclability. Furthermore, it is noteworthy that when a molded article obtained from the PPS resin composition of the present invention is used for a sliding member, the amount of wear of the molded article and its mating material, especially soft mating materials such as aluminum, is small. . The PPS resin composition of the present invention can be applied to the manufacture of precision parts such as watch gears, which are difficult to mold using conventional glass fiber or carbon fiber reinforced PPS resin compositions, and improve appearance (beauty) and impact resistance. We provide molded products that are ideal for various housing materials that require high performance. It also has good recyclability and easy maintenance of processing machines, and has great practical value as a resource-saving and energy-saving molding material. The present invention will be described in more detail below based on Examples, but the present invention is not limited to these Examples. Examples 1 to 7 and Comparative Examples 1 to 2 As shown in Table 1, each formulation component was mixed in a blender, melted and mixed using a 65 m/m single screw extruder at an extrusion temperature of 340°C, and then in a pelletizer. Processed into pellets. The pellets thus obtained were heated to an injection temperature of 320°C.
Mold temperature 120℃, injection pressure (primary pressure) 1200Kgf/
cm 2 , injection pressure (holding pressure) 500Kgf/cm 2 , injection speed 80
Test pieces were molded according to the following test method by injection molding under the conditions of cc/sec and injection holding pressure time of 20 seconds, and their physical properties were measured. Tensile strength: JIS K 7113 No. 1 test piece Izot impact value: JIS K 7110 V-notched Specular gloss: JIS Z 8741 Gs (60) 100mmφ×3mm disc Specific wear amount: Suzuki type abrasion tester Load 3Kgf/ cm 2 , speed 100cm/sec, mating material S45C Comparing material specific wear amount: Same as above The results of each measurement are shown in Table 1. In addition, Teismo D (manufactured by Otsuka Chemical Co., Ltd., trade name) used in Examples 1 to 5 was surface-untreated, and that used in Example 6 was surface-treated with γ-methacryloxypropyltrimethoxysilane. , and that used in Example 7 was surface treated with β-(3,4-epoxycyclohexyl)ethyltrimethoxysilane. The glass fiber used in Comparative Example 2 was a chopped strand product with a fiber diameter of about 10 μm and a fiber length of 3 mm. As is clear from Table 1, according to the present invention
Most of the physical properties of molded products obtained by blending PPS resin with PTW have improved, and the improvement in impact resistance is particularly remarkable.
The improvement effect when PTW is treated with a coupling agent is excellent.
【表】【table】
Claims (1)
径1μm以下、平均繊維長５〜100μm、アスペクト
比10以上の短繊維であるチタン酸カリウム繊維を
５〜70重量％含有することを特徴とするポリフエ
ニレンサルフアイド樹脂組成物（ただし鉱油は含
まない）。 ２ チタン酸カリウム繊維として、ビニルシラ
ン、エポキシシラン、アミノシランおよびメルカ
プトシランのうちの１種以上のシランカツプリン
グ剤によつて表面処理されたチタン酸カリウム繊
維を使用する特許請求の範囲第１項記載の組成
物。[Claims] 1. Polyphenylene sulfide resin contains 5 to 70% by weight of potassium titanate fibers, which are short fibers with an average fiber diameter of 1 μm or less, an average fiber length of 5 to 100 μm, and an aspect ratio of 10 or more. Characteristic polyphenylene sulfide resin composition (but does not contain mineral oil). 2. The method according to claim 1, wherein potassium titanate fibers are surface-treated with one or more silane coupling agents selected from vinylsilane, epoxysilane, aminosilane, and mercaptosilane. Composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9036183A JPS59215353A (en) | 1983-05-23 | 1983-05-23 | Polyphenylene sulfide resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9036183A JPS59215353A (en) | 1983-05-23 | 1983-05-23 | Polyphenylene sulfide resin composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59215353A JPS59215353A (en) | 1984-12-05 |
| JPH0415825B2 true JPH0415825B2 (en) | 1992-03-19 |
Family
ID=13996395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9036183A Granted JPS59215353A (en) | 1983-05-23 | 1983-05-23 | Polyphenylene sulfide resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59215353A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56135549A (en) * | 1980-03-26 | 1981-10-23 | Dainippon Ink & Chem Inc | Polyarylene sulfide resin composition |
| JPH0651827B2 (en) * | 1985-10-04 | 1994-07-06 | 三菱化成株式会社 | Thermo-tropic liquid crystal polymer composition and method for producing the same |
| JPS6286050A (en) * | 1985-10-14 | 1987-04-20 | Nippon Glass Seni Kk | Treating solution for filler or reinforcing material for polyarylene sulfide resin |
| JPH07100762B2 (en) * | 1985-12-12 | 1995-11-01 | 東ソー株式会社 | Polyphenylene sulfide resin composition for metallurgy |
| JPS62253656A (en) * | 1986-04-28 | 1987-11-05 | Kureha Chem Ind Co Ltd | Molded polyarylene thioether article |
| JPS6310661A (en) * | 1986-07-01 | 1988-01-18 | Denki Kagaku Kogyo Kk | Polyphenylene sulfide resin composition |
| JPH01301516A (en) * | 1987-12-25 | 1989-12-05 | Titan Kogyo Kk | Tunnel-structured potassium hexatitanate fiber, its production and composite material containing same |
| JP2626646B2 (en) * | 1996-01-23 | 1997-07-02 | 富士ゼロックス株式会社 | Peeling claw for heat fixing roller |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54147068A (en) * | 1978-05-10 | 1979-11-16 | Citizen Watch Co Ltd | Watch parts |
| JPS58152051A (en) * | 1982-03-03 | 1983-09-09 | Sumitomo Electric Ind Ltd | Polyphenylene sulfide resin composition |
-
1983
- 1983-05-23 JP JP9036183A patent/JPS59215353A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54147068A (en) * | 1978-05-10 | 1979-11-16 | Citizen Watch Co Ltd | Watch parts |
| JPS58152051A (en) * | 1982-03-03 | 1983-09-09 | Sumitomo Electric Ind Ltd | Polyphenylene sulfide resin composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59215353A (en) | 1984-12-05 |
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