JP2888384B2 - Phenolic resin molding materials - Google Patents
Phenolic resin molding materialsInfo
- Publication number
- JP2888384B2 JP2888384B2 JP3148345A JP14834591A JP2888384B2 JP 2888384 B2 JP2888384 B2 JP 2888384B2 JP 3148345 A JP3148345 A JP 3148345A JP 14834591 A JP14834591 A JP 14834591A JP 2888384 B2 JP2888384 B2 JP 2888384B2
- Authority
- JP
- Japan
- Prior art keywords
- molding material
- phenolic resin
- resin molding
- parts
- fabric
- 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 - Fee Related
Links
Landscapes
- Pulleys (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明はフェノール樹脂成形材料
に関し、特に耐衝撃性に優れたフェノール樹脂成形材料
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a phenolic resin molding material, and more particularly to a phenolic resin molding material having excellent impact resistance.
【０００２】[0002]
【従来の技術】自動車における燃費効率の向上等を背景
として、部品の小型軽量化が進んでいる。ピストン、ギ
ア、プーリ等の機構部品においても軽量化、高性能化が
求められており、金属製（ダイキァスト、板金あるいは
焼結）から樹脂製ヘの切り替えが検討されている。2. Description of the Related Art As the fuel efficiency of automobiles is improved, the size and weight of parts have been reduced. Lightening and higher performance are also required for mechanical parts such as pistons, gears and pulleys, and switching from metal (die-cast, sheet metal or sintered) to resin is being considered.
【０００３】例えば、自動車用プーリとしては、ベルト
耐摩耗性、寸法精度、耐熱性が要求される。この他、樹
脂プーリの問題点として、耐落下衝撃性、耐落球衝撃性
等も求められており、ガラス繊維を充填材としたポリア
ミド樹脂製やフェノール樹脂製プーリ、及び綿布を充填
材としたフェノール樹脂製プーリ（例えば、特開昭６４
─８７９６８号公報）等が検討されている。For example, pulleys for automobiles are required to have belt wear resistance, dimensional accuracy, and heat resistance. In addition, as a problem of the resin pulley, a drop impact resistance, a falling ball impact resistance, and the like are also required. A pulley made of a polyamide resin or a phenol resin using a glass fiber as a filler, and a phenol using a cotton cloth as a filler. Pulley made of resin (for example,
No. 87968) has been studied.
【０００４】他の機構部品についても、同様に種々の樹
脂配合が検討されており、一部実用化されているものも
ある。[0004] Various other resin components have also been studied for other mechanical components, and some of them have been put to practical use.
【０００５】[0005]
【発明が解決しょうとする課題】プーリにおいて、ガラ
ス繊維を充填材としたポリアミド樹脂プーリは、プーリ
とベルトがスリップした際に、異常発熱によりプーリが
溶融脱落する恐れがあり、信頼性という点で不十分であ
る。またガラス繊維を充填材としたフェノール樹脂プー
リは、ベルトを摩耗させ易いこと、及び、耐落下衝撃
性、耐落球衝撃性が低い点で不十分である。SUMMARY OF THE INVENTION In a pulley, a polyamide resin pulley using glass fiber as a filler has a risk that the pulley may melt and fall off due to abnormal heat generation when the pulley and the belt slip, resulting in reliability. Not enough. A phenolic resin pulley using glass fiber as a filler is insufficient because it easily wears the belt and has low drop impact resistance and low ball impact resistance.
【０００６】また、綿布を充填材としたフェノール樹脂
プーリは、ベルト耐摩耗性は良好となるが、耐落下衝撃
性、耐落球衝撃性が劣る点で未だ不十分である。[0006] A phenolic resin pulley using a cotton cloth as a filler has good belt wear resistance, but is still insufficient due to poor drop impact resistance and falling ball impact resistance.
【０００７】他の部品についても、機械的強度、落下衝
撃性など全ての要求特性を十分に満足するものはなく、
より一層の改良が望まれている。[0007] As for other parts, none of them fully satisfies all required characteristics such as mechanical strength and drop impact resistance.
Further improvements are desired.
【０００８】本発明は、耐熱性が優れ、ベルト耐摩耗性
が向上し、耐衝撃性に優れた樹脂製プーリをはじめとす
る自動車の機構部品用として好適なフェノール樹脂成形
材料を提供することを目的とする。An object of the present invention is to provide a phenolic resin molding material having excellent heat resistance, improved belt abrasion resistance and excellent impact resistance, which is suitable for use in automobile mechanical parts such as resin pulleys. Aim.
【０００９】[0009]
【課題を解決するための手段】本発明は、メリヤス、ク
レープ、デニム等の綿織物を粉砕して得られる織物粉砕
物を主たる充填材として含有し、前記織物粉砕物の配合
量が、フェノール樹脂１００重量部に対して５０〜２０
０重量部であることを特徴とするプーリ用フェノール樹
脂成形材料、及び、このフェノール樹脂成形材料により
成形してていることを特徴とする樹脂製プーリ、に関す
るものである。The present invention comprises, as a main filler, a crushed fabric obtained by crushing a cotton fabric such as knit, crepe, and denim, and the blending amount of the crushed fabric is a phenolic resin. 50 to 20 parts by weight
The present invention relates to a phenolic resin molding material for a pulley characterized by being 0 parts by weight, and a resin pulley characterized by being molded with the phenolic resin molding material.
【００１０】本発明に用いられるマトリックス樹脂はフ
ェノール樹脂である。ポリアミドを始めとする熱可塑性
樹脂エンプラ材では、耐熱性が十分でなく、高温下にさ
らされる部品には不適である。特に、プーリではベルト
がスリップした場合に、異常発熱により樹脂が溶融脱落
してしまう欠点がある。これに対して、熱硬化性樹脂で
あるフェノール樹の場合は上記の問題が全く発生しない
ため、プーリ等の自動車の機構部品用マトリックスとし
て最適である。本発明に使用されるフェノール樹脂は、
ノボラック型フェノール樹脂、レゾール型フェノール樹
脂のいずれでもよく、また、変性フェノール樹脂を用い
てもよい。The matrix resin used in the present invention is a phenol resin. Thermoplastic resin engineering materials such as polyamides have insufficient heat resistance and are unsuitable for components exposed to high temperatures. In particular, the pulley has a drawback that when the belt slips, the resin melts and falls off due to abnormal heat generation. On the other hand, in the case of a phenol resin which is a thermosetting resin, the above problem does not occur at all, and therefore, it is most suitable as a matrix for a mechanical component of an automobile such as a pulley. Phenol resin used in the present invention,
Either a novolak type phenol resin or a resol type phenol resin may be used, or a modified phenol resin may be used.
【００１１】また、本発明に使用される充填材は綿織物
粉砕物である。プーリの場合、ベルト耐摩耗性の向上と
いう点のみからすれば綿布などの布細片を充填材とした
ものでも充分であるが、耐落下衝撃性、耐落球衝撃性が
劣るという欠点がある。これに対し、これらの綿織物を
粉砕したものを充填材とすると、優れたベルト耐摩耗性
が得られるばかりでなく、極めて高い耐落下衝撃性、耐
落球衝撃性が得られるのである。本発明に使用される織
物粉砕物は、綿織物即ち、クレープ、メリヤス、デニム
などを粉砕して得られたものであり、１種又は２種以上
を組み合わせて使用することができる。The filler used in the present invention is a crushed cotton fabric. In the case of a pulley, a cloth made of cloth such as cotton cloth as a filler is sufficient from the viewpoint of improving the belt abrasion resistance only, but there is a drawback that the drop impact resistance and the falling ball impact resistance are inferior. On the other hand, when the crushed cotton fabric is used as a filler, not only excellent belt wear resistance but also extremely high drop impact resistance and falling ball impact resistance can be obtained. The pulverized fabric used in the present invention is obtained by pulverizing a cotton fabric, ie, crepe, knit, denim, etc., and may be used alone or in combination of two or more.
【００１２】織物粉砕物の粒度は５メッシュから 140メ
ッシュのスクリーンを通過したものが好ましい。５メッ
シュ以上の粗いスクリーンを通過したものを使用した場
合は、耐落下衝撃性、耐落球衝撃性は良好となるものの
表面の滑らかな成形品が得られにくく、成形品の光沢が
悪くなったり、表面がでこぼこになったりすることがあ
る。一方、140メッシュ以下の細かいスクリーンを通過し
たものを使用すると、目的とする耐落下衝撃性、耐落球
衝撃性が不十分となる。好ましくは10メッシュから60メ
ッシュのスクリーンを通過したものである。[0012] The particle size of the crushed fabric is preferably one that has passed through a screen of 5 mesh to 140 mesh. When a material that has passed through a coarse screen of 5 mesh or more is used, the drop impact resistance and the falling ball impact resistance are good, but it is difficult to obtain a molded product having a smooth surface and the gloss of the molded product is poor, The surface may be uneven. On the other hand, when a material that has passed through a fine screen of 140 mesh or less is used, the intended drop impact resistance and falling ball impact resistance become insufficient. Preferably, it has passed through a 10 to 60 mesh screen.
【００１３】綿織物粉砕物の配合量はフェノール樹脂 1
00重量部に対して 50〜250重量部であることが好まし
い。50重量部以下では充分な耐衝撃性が得られず、250重
量部以上では成形性が悪くなり、実用上問題となる場合
がある。The amount of the pulverized cotton fabric is phenol resin.
It is preferably 50 to 250 parts by weight based on 00 parts by weight. If the amount is less than 50 parts by weight, sufficient impact resistance cannot be obtained, and if the amount is more than 250 parts by weight, moldability deteriorates, which may cause a practical problem.
【００１４】本発明のフェノール樹脂成形材料は、フェ
ノール樹脂、綿織物粉砕物の他、必要に応じて、硬化
剤、硬化触媒、離型剤、着色剤などの添加剤を配合して
製造される。その製造方法は通常行われている方法でも
可能であるが、織物粉砕物がかなり嵩ばったものである
ため、適量の溶剤と共に加熱高速撹拌により造粒化する
のが好ましい。The phenolic resin molding material of the present invention is produced by blending additives such as a curing agent, a curing catalyst, a release agent, and a coloring agent, if necessary, in addition to the phenolic resin and the pulverized cotton fabric. Although the production method can be a conventional method, it is preferable to granulate by heating and high-speed stirring together with an appropriate amount of a solvent because the crushed fabric is considerably bulky.
【００１５】熱ロールによる方法ではシート状成形材料
の粉砕が必要であるので、材料の見かけ密度の低下が大
きく、成形性に問題が生じることがある。また、押出機
による製造においても、フェノール樹脂、綿織物粉砕物
及びその他の添加剤からなる混合物の押出機への安定供
給が難しくなるので、安定した生産が困難となる。In the method using a hot roll, it is necessary to pulverize the sheet-shaped molding material, so that the apparent density of the material is greatly reduced, which may cause a problem in moldability. Also, in the production using an extruder, it is difficult to stably supply a mixture of a phenol resin, a crushed cotton fabric, and other additives to the extruder, so that stable production is difficult.
【００１６】[0016]
【実施例】以下に、実施例により本発明を説明する。The present invention will be described below with reference to examples.
【００１７】実施例１ メリヤス織物を粉砕し、40メッシュのスクリーンを通過
したものを充填材として使用し、表１に示す配合組成で
ヘンシェルミキサーを用いて加熱混練することにより、
粒状のフェノール樹脂成形材料を得た。この成形材料を
用いて 175℃、1000kg／cm2 で60秒間射出成形を行い、
厚さ10mm、径50mmのプーリ形状の円盤型成形品を得た。Example 1 A knitted fabric was pulverized and passed through a 40-mesh screen, and the mixture was heated and kneaded using a Henschel mixer with the composition shown in Table 1 as a filler.
A granular phenolic resin molding material was obtained. Using this molding material, injection molding was performed at 175 ° C. and 1000 kg / cm 2 for 60 seconds.
A 10 mm thick, 50 mm diameter pulley disk-shaped molded product was obtained.
【００１８】この成形品について、落下衝撃性、落球衝
撃性及びベルト耐摩耗性の評価を行ったところ、表１に
示すとおり良好な結果が得られた。The molded article was evaluated for drop impact, ball impact, and belt abrasion resistance. As shown in Table 1, good results were obtained.
【００１９】実施例２ デニム織物を粉砕し、50メッシュのスクリーンを通過し
たものを充填材として使用し、表１に示す配合組成で、
実施例１と同様にしてフェノール樹脂成形材料を得た。
この成形材料を実施例１と同様にして成形し、評価を行
ったところ、表１に示すとおりの良好な結果が得られ
た。Example 2 A denim woven fabric was pulverized and passed through a 50-mesh screen and used as a filler.
A phenol resin molding material was obtained in the same manner as in Example 1.
The molding material was molded and evaluated in the same manner as in Example 1, and good results as shown in Table 1 were obtained.
【００２０】実施例３ クレープ織物を粉砕し、16メッシュのスクリーンを通過
したものを充填材として使用し、表１に示す配合組成
で、実施例１と同様にしてフェノール樹脂成形材料を得
た。この成形材料を実施例１と同様にして成形し、評価
を行ったところ、表１に示すとおりの良好な結果が得ら
れた。Example 3 A phenol resin molding material was obtained in the same manner as in Example 1 with the composition shown in Table 1 by using a crepe woven fabric which had been pulverized and passed through a 16-mesh screen as a filler. The molding material was molded and evaluated in the same manner as in Example 1, and good results as shown in Table 1 were obtained.
【００２１】実施例４ 充填材としてメリヤス粉砕物とデニム粉砕物とを使用
し、表１に示す配合組成で、実施例１と同様にしてフェ
ノール樹脂成形材料を得た。この成形材料を実施例１と
同様にして成形し、評価を行ったところ、表１に示すと
おりの良好な結果が得られた。Example 4 A phenolic resin molding material was obtained in the same manner as in Example 1 using the kneaded pulverized material and the denim pulverized material as the filler and having the composition shown in Table 1. The molding material was molded and evaluated in the same manner as in Example 1, and good results as shown in Table 1 were obtained.
【００２２】比較例１ デニム粉砕物の替わりにデニム織物を５×５mmに切断し
た布細片を用いた以外は実施例２と同じ配合組成とし
た。以下実施例１と同様にしてフェノール樹脂成形材料
を得た。この成形材料を実施例１と同様にして成形し、
評価を行ったところ、表１に示すとおりの結果が得られ
た。この成形品は実施例２などと比較して、落下衝撃
性、落球衝撃性が劣っている。Comparative Example 1 The same composition as in Example 2 was used except that a denim woven cloth cut into 5 × 5 mm pieces was used instead of the denim pulverized material. Thereafter, a phenol resin molding material was obtained in the same manner as in Example 1. This molding material was molded in the same manner as in Example 1,
As a result of the evaluation, the results shown in Table 1 were obtained. This molded product is inferior in drop impact and ball impact as compared with Example 2 and the like.
【００２３】比較例２ 充填材として長さ1.5mm のガラス繊維を使用し表１に示
す配合組成で、実施例１と同様にしてフェノール樹脂成
形材料を得た。この成形材料を実施例１と同様にして成
形し、評価を行ったところ、表１に示すとおりの結果が
得られた。この成形品は実施例１，３などと比較して、
落下衝撃性、落球衝撃性、ベルト耐摩耗性が劣ってい
る。Comparative Example 2 A phenolic resin molding material was obtained in the same manner as in Example 1 except that glass fiber having a length of 1.5 mm was used as a filler and the composition was as shown in Table 1. This molding material was molded and evaluated in the same manner as in Example 1, and the results shown in Table 1 were obtained. This molded product is compared with Examples 1 and 3,
Poor drop impact, falling ball impact, and belt wear resistance.
【００２４】比較例３ 充填材としてデニム粉砕物と長さ1.5mm のガラス繊維を
使用し、実施例１と同様にしてフェノール樹脂成形材料
を得た。この成形材料を実施例１と同様にして成形し、
評価を行ったところ、表１に示すとおりの結果が得られ
た。この成形品は上記各実施例と比較して、落下衝撃
性、落球衝撃性、ベルト耐摩耗性が劣っている。Comparative Example 3 A phenolic resin molding material was obtained in the same manner as in Example 1 except that denim pulverized material and glass fiber having a length of 1.5 mm were used as the filler. This molding material was molded in the same manner as in Example 1,
As a result of the evaluation, the results shown in Table 1 were obtained. This molded product is inferior in drop impact, ball impact, and belt abrasion resistance as compared with the above examples.
【００２５】[0025]
【表１】 [Table 1]
【００２６】（評価方法）1.落下衝撃性 円盤状成形品を縦にして一定の高さからコンクリート上
に自然落下させる。 ○：異状なし △：へこみ又はクラック発生 ×：
欠け発生(Evaluation method) 1. Drop impact property A disc-shaped molded product is vertically dropped and naturally dropped on concrete from a certain height. ：: No abnormality △: Dent or crack occurred ×:
Chipping occurs
【００２７】2.落球衝撃性 円盤状成形品を角度45度の傾斜面に置き、径50mmの鋼球
を、プーリの上端面に当たるように一定の高さから落下
させる。 ○：異状なし △：へこみ又はクラック発生 ×：
欠け発生2. Falling Ball Impact The disc-shaped molded product is placed on an inclined surface having an angle of 45 degrees, and a steel ball having a diameter of 50 mm is dropped from a certain height so as to hit the upper end surface of the pulley. ：: No abnormality △: Dent or crack occurred ×:
Chipping occurs
【００２８】3.ベルト耐摩耗性 上記の成形方法で径18mm、厚さ10mmのテストピースを得
る。幅10mmのベルト片をテストピースに ３kgfの加圧力
をかけながら、周速 60rpmでテストピースをベルト片に
対し、摺動回転させ、24時間後のベルトの摩耗量を測定
する。 ○：摩耗ほとんどなし △：やや摩耗あり ×：摩
耗著しい3. Wear Resistance of Belt A test piece having a diameter of 18 mm and a thickness of 10 mm is obtained by the above-mentioned molding method. While applying a pressure of 3 kgf to the test piece with a 10 mm wide belt piece, the test piece is slid and rotated with respect to the belt piece at a peripheral speed of 60 rpm, and the amount of wear of the belt after 24 hours is measured. ○: Almost no wear △: Slight wear ×: Remarkable wear
【００２９】[0029]
【発明の効果】本発明のフェノール樹脂成形材料から得
られた成形品は優れた耐熱性を有すると共に、プーリの
場合のベルト耐摩耗性のように、相手材の摩耗が小さ
く、耐落下衝撃性、耐落球衝撃性が優れている。従っ
て、本発明のフェノール樹脂成形材料より得られた成形
品は自動車の機構部品用としてその工業的価値は極めて
大きいものである。The molded article obtained from the phenolic resin molding material of the present invention has excellent heat resistance, small wear of the mating material such as belt abrasion resistance in the case of a pulley, and drop impact resistance. And excellent falling ball impact resistance. Therefore, the molded product obtained from the phenolic resin molding material of the present invention is extremely large in industrial value for use in automobile mechanical parts.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭60−144354（ＪＰ，Ａ) 特開 昭64−87968（ＪＰ，Ａ) 特開 昭57−16050（ＪＰ，Ａ) ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-60-144354 (JP, A) JP-A-64-87968 (JP, A) JP-A-57-16050 (JP, A)
Claims (2)
を粉砕して得られる織物粉砕物を主たる充填剤として含
有し、前記織物粉砕物の配合量が、フェノール樹脂１０
０重量部に対して５０〜２００重量部であることを特徴
とするプーリ用フェノール樹脂成形材料。The present invention contains , as a main filler, a crushed fabric obtained by crushing a cotton fabric such as knit, crepe, and denim.
A phenolic resin molding material for pulleys, which is 50 to 200 parts by weight with respect to 0 parts by weight .
を粉砕して得られる織物粉砕物を主たる充填剤として含
有し、前記織物粉砕物の配合量が、フェノール樹脂１０
０重量部に対して５０〜２５０重量部であるフェノール
樹脂成形材料により成形されてなることを特徴とする樹
脂製プーリ。 2. A pulverized fabric obtained by pulverizing a cotton fabric such as knit, crepe or denim is contained as a main filler, and the blended amount of the pulverized fabric is 10% or less.
A resin pulley formed by a phenol resin molding material in an amount of 50 to 250 parts by weight with respect to 0 parts by weight .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3148345A JP2888384B2 (en) | 1990-06-26 | 1991-06-20 | Phenolic resin molding materials |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16558390 | 1990-06-26 | ||
| JP2-221232 | 1990-08-24 | ||
| JP2-165583 | 1990-08-24 | ||
| JP22123290 | 1990-08-24 | ||
| JP3148345A JP2888384B2 (en) | 1990-06-26 | 1991-06-20 | Phenolic resin molding materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04249568A JPH04249568A (en) | 1992-09-04 |
| JP2888384B2 true JP2888384B2 (en) | 1999-05-10 |
Family
ID=27319544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3148345A Expired - Fee Related JP2888384B2 (en) | 1990-06-26 | 1991-06-20 | Phenolic resin molding materials |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2888384B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5846470A (en) | 1994-06-08 | 1998-12-08 | Sumitomo Bakelite Company Limited | Process for production of phenolic resin pulley |
| JP4679062B2 (en) * | 2004-03-01 | 2011-04-27 | 旭有機材工業株式会社 | Pulley molded with phenolic resin molding material |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5716050A (en) * | 1980-07-02 | 1982-01-27 | Matsushita Electric Works Ltd | Phenolic molding material |
| JPS60144354A (en) * | 1984-01-06 | 1985-07-30 | Sumitomo Bakelite Co Ltd | Phenolic resin composition |
| JPS6487968A (en) * | 1987-09-30 | 1989-04-03 | Shin Kobe Electric Machinery | Resin made pulley |
-
1991
- 1991-06-20 JP JP3148345A patent/JP2888384B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04249568A (en) | 1992-09-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |