JP3194269B2 - Polishing monofilament - Google Patents

Polishing monofilament

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Publication number
JP3194269B2
JP3194269B2 JP23122593A JP23122593A JP3194269B2 JP 3194269 B2 JP3194269 B2 JP 3194269B2 JP 23122593 A JP23122593 A JP 23122593A JP 23122593 A JP23122593 A JP 23122593A JP 3194269 B2 JP3194269 B2 JP 3194269B2
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resin
nylon
monofilament
polishing
durability
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JPH0790719A (en
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桂一 木下
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旭化成株式会社
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Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【産業上の利用分野】本発明は研磨用モノフィラメントに関するものである。 The present invention relates to relates to a polishing monofilament. さらに詳しくは、研磨性および耐久性に優れるため工業用ブラシなどの用途に適した研磨用モノフィラメントに関するものである。 More particularly, it relates to a polishing monofilament suitable for applications such as industrial brushes for excellent abrasive resistance and durability.

【0002】 [0002]

【従来の技術】従来から工業用ブラシ等の研磨・研削材分野において、砥材を含有する熱可塑性樹脂からなる研磨用モノフィラメントを用いることはよく知られている。 BACKGROUND OF THE INVENTION In the grinding-polishing material field of industrial brush or the like conventionally It is well known to use abrasive monofilament comprising a thermoplastic resin containing abrasive material. 熱可塑性樹脂としてはナイロン6樹脂、ナイロン6 Thermoplastic The resin nylon 6 resin, nylon 6
10樹脂、ナイロン612樹脂等が使用されている(例えば、特開平4−41183号公報、特公平3−263 10 resin, nylon 612 resin are used (e.g., JP-A-4-41183 and JP-Kokoku 3-263
2号公報、特公昭63−7911号公報、特公昭61− 2 JP, Sho 63-7911, JP-Sho 61-
14645号公報)。 14,645 JP). しかしながら、耐久性としてはまだ充分なレベルには達しておらず、特に80℃以上の高温の温水で研磨用モノフィラメントを冷却している用途では、高い温度の為に耐久性が大きく低下している。 However, it does not reach yet sufficient level as durability, in applications to cool the abrasive monofilament particularly 80 ° C. or more high temperature hot water, the durability for high temperature is greatly reduced .

【0003】これまでにも、研磨用モノフィラメントの耐久性を向上させるために、各種の方法が提案されている。 [0003] Up to now, in order to improve the durability of the abrasive monofilament, various methods have been proposed. 具体的には、ポリブチレンテレフタレートに柔軟性に優れたエステルエラストマーを配合して耐久性を向上させる方法(例えば、特開昭60−257515号公報)、ナイロン6から高粘度のナイロン6/66共重合樹脂へと変更する方法(例えば、特公昭63−7911 Specifically, a method for improving the durability by blending superior ester elastomer flexible polybutylene terephthalate (e.g., JP-A-60-257515), 6/66 co nylon high viscosity nylon 6 to change to a polymeric resin (e.g., JP-B-63-7911
号公報)、ナイロン12樹脂を用いる方法(例えば、特開昭62−39184号公報)等を挙げることができる。 JP), a method using a nylon 12 resin (for example, a JP-62-39184 Publication), and the like. しかしながら、これらの方法では温度の高い領域では耐久性が悪い結果しか得られない。 However, no results obtained only poor durability at high temperature region by these methods.

【0004】 [0004]

【発明が解決しようとする課題】本発明は、高温領域において耐久性に優れる研磨用モノフィラメントを提供することを目的とする。 [0008] The present invention aims to provide a polishing monofilament excellent in durability at high temperature region.

【0005】 [0005]

【課題を解決するための手段】本発明者は高温領域で高い耐久性を示す研磨用モノフィラメントが見いだせないか鋭意検討し、ナイロン樹脂の特定の組合せを行なうことで耐久性が大きく向上する事を見いだし、この知見にもとづき本発明に至った。 The present inventors Means for Solving the Problems] is conducted intensive studies do not be found is abrasive monofilaments exhibit high durability in a high temperature region, that the durability by performing a particular combination of nylon resin is significantly improved found, we have completed the present invention based on this finding. すなわち、本発明は、ナイロン樹脂と粒度が#30〜#3000の砥材粒子からなるモノフィラメントであって、該ナイロン樹脂が相対粘度3.0以上のナイロン610樹脂、ナイロン612樹脂から選ばれる少なくとも1つの樹脂と相対粘度3.0以上のナイロン6樹脂とを含有し、それらの重量割合が2 That is, the present invention provides a monofilament nylon resin and the particle size becomes the abrasive particles of # 30 # 3000, at least said nylon resin is selected from the relative viscosity 3.0 or more nylon 610 resin, nylon 612 resin One of containing a resin and a relative viscosity of 3.0 or more of nylon 6 resin, their weight ratio is 2
0:80〜80:20であり、かつ該モノフィラメント中の砥材粒子の割合が5〜50重量%であることを特徴とする研磨用モノフィラメントに関するものである。 0: 80 to 80: A 20, and it relates to a polishing monofilament, wherein the proportion of abrasive particles in said monofilament is 5-50 wt%.

【0006】本発明で用いるナイロン樹脂の相対粘度は3.0以上である。 [0006] The relative viscosity of the nylon resin used in the present invention is 3.0 or more. 3.0未満では溶融紡糸時に紡口直下で太さの変動や糸切れが起こり易く好ましくない。 Thickness variation and yarn breakage directly under the spinneret during melt spinning is less than 3.0 occurs easily is not preferable. また、相対粘度の上限は特に規定しないが紡糸性の点から6.0以下が好ましく使用され、相対粘度が6.0を超えると溶融体の粘性が著しく高まり、紡糸することが難しくなる。 The upper limit of the relative viscosity is in particular is does not but use is preferably 6.0 or less from the viewpoint of spinnability defined relative viscosity is more than 6.0 and viscosity increased significantly the melt, be spun difficult. ナイロン樹脂どうしの相対粘度の差は小さいほうが混練性を考えた場合望ましいが、紡糸性や耐久性での問題はない。 Difference in relative viscosity of the nylon resin to each other is desirable if the smaller thought kneading resistance but no problem in spinnability and durability.

【0007】なお、本発明でいう相対粘度とは、98重量%の濃硫酸100ml中に熱可塑性樹脂1gをを溶解させた溶液の粘度を25℃の条件でオストワルド粘度計で測定した値である。 [0007] Note that the relative viscosity in the present invention is the value measured by Ostwald viscometer the viscosity of the solution obtained by dissolving a thermoplastic resin 1g concentrated sulfuric acid 100ml of 98 wt% under the condition of 25 ° C. . 本発明においては、本発明における耐久性を達成するために、ナイロン樹脂におけるナイロン610樹脂、ナイロン612樹脂から選ばれる少なくとも1つの樹脂とナイロン6樹脂との重量割合が2 In the present invention, in order to achieve durability in the present invention, nylon 610 resin in the nylon resin, the weight ratio of the at least one resin and nylon 6 resin selected from nylon 612 resin 2
0:80〜80:20であることが肝要である。 0: 80 to 80: it is important to be a 20.

【0008】本発明においては、紡糸性の改善等により上記ナイロン樹脂に他のナイロン樹脂(例えば、ナイロン66とナイロン6との共重合樹脂、ナイロン66樹脂)を加えることは可能であるが、10重量%以上加えることは耐久性向上の妨げになる。 [0008] In the present invention, other nylon resin in the nylon resin by improvement of spinnability (e.g., a copolymer resin of nylon 66 and nylon 6, nylon 66 resin) It is possible to add, 10 adding weight% or more hinder durability. 従って、ナイロン樹脂中のナイロン6樹脂、ナイロン610樹脂、ナイロン612樹脂の合計はナイロン樹脂中の90重量%以上であることが好ましい。 Thus, nylon 6 nylon resin, nylon 610 resin, it is preferred that the total of the nylon 612 resin is 90 wt% or more nylon resin.

【0009】本発明で使用できる砥材粒子としては酸化アルミニュウム、酸化ジルコニュウム等の酸化物、炭化珪素等の炭化物、窒化珪素等の窒化物、および人工ダイヤモンド等の人造研磨材またはダイヤモンド、コランダム、エメリー、ざくろ石等の天然研磨材が挙げられ、これらを単独もしくは2種以上混合して用いてもよい。 [0009] The present invention oxide as abrasive particles that can be used aluminum, oxides such as Jirukonyuumu, carbides such as silicon carbide, nitrides such as silicon nitride, and manufactured abrasives or diamond and artificial diamond, corundum, emery , it includes natural abrasive garnet or the like may be mixed and used singly or two or more. 砥材粒子の粒度は通常#30〜#3000の範囲にあるが、特に#46〜#2000の範囲のものが研磨性、研削力および紡糸性の面から好ましく使用できる。 The particle size of the abrasive particles is generally in the range of # 30 to # 3000, in particular # 46 to # is abrasive in the range of 2000, it can be preferably used in view of the grinding force and spinnability. なお、 It should be noted that,
本発明の砥材粒子の粒度はJIS R 6001による。 The particle size of the abrasive particles of the invention According to JIS R 6001.

【0010】本発明における研磨用モノフィラメントの砥材粒子の含有量は熱可塑性樹脂の5重量%から50重量%の範囲にあり、特に10重量%から40重量%の範囲が好ましい。 [0010] The content of abrasive particles of the polishing monofilament of the present invention is in the range from 5% to 50% by weight of a thermoplastic resin, in particular in the range from 10% to 40% by weight. 5重量%未満では研磨性や研削力が不足し、50重量%を超えるものはモノフィラメントの成形が著しく困難となる上、耐久性も大幅に低下するために好ましくない。 5 insufficient abrasive or grinding force is less than wt%, on the molding of the monofilament in excess of 50 wt% becomes extremely difficult, undesirable because the durability drops significantly.

【0011】本発明における砥材粒子は単に研磨材としてだけの効果ではない。 [0011] abrasive particles in the present invention is not simply just effect as an abrasive. 砥材粒子を含まないナイロン6 Nylon 6 that does not contain abrasive particles
樹脂とナイロン610樹脂のブレンドでは任意の比率でのモノフィラメントの紡糸はできなかった。 I could not spun monofilament at any proportion in the blend of the resin and nylon 610 resin. ところが、 However,
砥材粒子を加えることで任意の比率でモノフィラメントの紡糸が可能になり、本発明の効果を明かとすることができた。 It enables spinning monofilaments in any ratio by adding abrasive particles, it was possible to clear the effects of the present invention.

【0012】砥材粒子と熱可塑性樹脂の接着性を上げるために、シランカップリング剤(無機質の材料と化学結合するメトキシシラン基等と有機質材料と接着性のよい官能基の2種類の官能基を有する)は、ナイロン6樹脂、ナイロン12樹脂、ナイロン610樹脂に通常使用されるように本発明でも同様に使用することができる。 [0012] In order to increase the adhesion of the abrasive particles and a thermoplastic resin, a silane coupling agent (2 types of functional groups of the functional group, which may adhesiveness with methoxysilane group and an organic material which material chemically bonded inorganic the a) it can be used as well in the present invention as is commonly used nylon 6 resin, nylon 12 resin, nylon 610 resin.
本発明の研磨用モノフィラメントはナイロン樹脂ペレットに砥材を配合させて均一に混合し、これを溶融押出機で溶融し、紡口孔より冷却水中に紡出させ、引続き延伸することで得られる。 Polishing monofilament of the present invention is uniformly mixed by blending abrasive nylon resin pellets, which were melted in a melt extruder, then spun from spinneret holes in the cooling water, it is obtained by stretching continue. ここで、研磨用モノフィラメントの断面形状は円形が一般的であるが必要により楕円形、 Here, the cross-sectional shape of the polishing monofilament oval necessary but circular is common,
矩形等にすることができる。 It can be rectangular or the like.

【0013】本発明の研磨用モノフィラメントの平均糸径は通常0.3mm〜2.5mmの範囲であるが、0. [0013] The average fiber diameter of the polishing monofilament of the present invention is usually in the range of 0.3mm~2.5mm, 0.
6mmから1.6mmのものがよく使用される。 Those from 6mm to 1.6mm is often used.

【0014】 [0014]

【実施例】次に、実施例により本発明をさらに詳細に説明する。 EXAMPLES As follows is a description of the present invention through examples. なお耐久性は以下の方法で評価した。 The durability was evaluated by the following method. 耐久性:総本数30本の研磨用モノフィラメントを直径23cmの円筒状ロールに中心から放射状になるように円周面上に固定し、このロールを1200rpmで回転させ、下から徐々に押し上げた鋼板の表面に衝突させて、屈曲疲労により研磨用モノフィラメントの糸折れが開始するまでの時間(分)で耐久性を表す。 Durability: the abrasive monofilaments total number thirty fixed on the circumferential surface so as to radially from the center to the cylindrical roll having a diameter of 23cm, rotate the roll 1200 rpm, gradually pushed up steel plate from below by impinging on the surface, indicating the durability time until broken yarn polishing monofilament begins (min) by bending fatigue. ここで研磨用モノフィラメントのロール側固定位置から鋼板側の先端までの長さは30mm、研磨用モノフィラメントのロール側固定位置から鋼板表面までの距離を20mmとする。 Here the length from the roll side fixing positions of the abrasive monofilament to the tip of the steel sheet side 30 mm, the distance from the roll side fixing positions of the abrasive monofilament until the surface of the steel sheet and 20 mm. また、評価中の研磨用モノフィラメントは通常の使用され方法に合わし、88℃のスプレー温水を150L Further, the polishing monofilament in evaluation Awashi normal used methods, 150L spray warm water 88 ° C.
/Hrで常時吹きかけている。 / It is sprayed constantly with Hr.

【0015】 [0015]

【実施例1】相対粘度3.2のナイロン6樹脂のペレット45kg、相対粘度3.3のナイロン610樹脂のペレット15kg、両樹脂に対して25重量%の#100 Example 1 Nylon 6 resin pellets 45kg of relative viscosity 3.2, nylon 610 resin having a relative viscosity of 3.3 pellets 15 kg of 25 wt% for both resin # 100
の炭化珪素(昭和電工株式会社製)と炭化珪素に対して0.4重量%のシランカップリング剤(信越化学株式会社製、KBM−603)を配合し、150Lのタンブラー型ミキサーで均一に混合した。 Mixing silicon carbide (Showa Denko KK) and 0.4 wt% of silane coupling agent to silicon carbide (Shin-Etsu Chemical Co., Ltd., KBM-603) were blended, uniformly in a tumbler type mixer 150L did. 次に、この混合体を溶融押出機上部に備わったホッパーに入れ、270℃に保たれた単軸押出機の溶融ゾーンへ導いて溶融させ、孔直径2.8mmの紡口から20m/分の速度で常温の冷却水中に紡出させた。 Then placed into a hopper equipped with this mixture in a melt extruder top, melted lead into melting zone of a single screw extruder maintained at 270 ° C., from spinneret holes diameter 2.8 mm 20 m / minute It was spun in the cooling water of room temperature at a rate. 引き続いて固化したモノフィラメントを280℃気体延伸浴中で2.6倍に延伸しながら5 5 while the solidified subsequently monofilament was stretched 2.6 times at 280 ° C. gas stretching bath
0m/分で巻取り、糸径1.6mmの研磨用モノフィラメントを得た。 The take-up in the 0m / min to obtain a polishing monofilament yarn diameter 1.6mm. この研磨用モノフィラメントの耐久性を表1に示す。 It shows the durability of the polishing monofilament in Table 1.

【0016】 [0016]

【実施例2】ナイロン6樹脂とナイロン610樹脂の比率を50:50にして、実施例1と同様な方法で、糸径1.6mmの研磨用モノフィラメントを得た。 The ratio of Example 2 Nylon 6 resin and nylon 610 resin was 50:50, in the same manner as in Example 1 to obtain a polishing monofilament yarn diameter 1.6 mm. このモノフィラメントの耐久性を表1に示す。 It shows the durability of the monofilament in Table 1.

【0017】 [0017]

【実施例3】ナイロン6樹脂とナイロン610樹脂の比率を25:75にして、実施例1と同様な方法で、糸径1.6mmの研磨用モノフィラメントを得た。 Example 3 and the ratio of the nylon 6 resin and nylon 610 resin 25:75, in the same manner as in Example 1 to obtain a polishing monofilament yarn diameter 1.6 mm. このモノフィラメントの耐久性を表1に示す。 It shows the durability of the monofilament in Table 1.

【0018】 [0018]

【実施例4】ナイロン6樹脂とナイロン612樹脂の比率を25:75にして、実施例1と同様な方法で、糸径1.6mmの研磨用モノフィラメントを得た。 Example 4 and the ratio of the nylon 6 resin and nylon 612 resin 25:75, in the same manner as in Example 1 to obtain a polishing monofilament yarn diameter 1.6 mm. このモノフィラメントの耐久性を表2に示す。 It shows the durability of the monofilament in Table 2.

【0019】 [0019]

【実施例5】ナイロン6樹脂6.75kg、ナイロン6 Example 5 Nylon 6 resin 6.75 kg, nylon 6
10樹脂1.35kgとナイロン612樹脂0.9kg 10 resin 1.35kg and nylon 612 resin 0.9kg
を使用して、実施例1と同様な方法で、糸径1.6mm Use, in the same manner as in Example 1, the yarn diameter 1.6mm
の研磨用モノフィラメントを得た。 To obtain a polishing monofilament. このモノフィラメントの耐久性を表1に示す。 It shows the durability of the monofilament in Table 1.

【0020】 [0020]

【比較例1】ナイロン6樹脂のペレット100%で実施例1と同様の方法で、糸径1.6mmの研磨用モノフィラメントを得た。 In Comparative Example 1 Nylon 6 resin same manner as in Example 1 with 100% pellets, to obtain a polishing monofilament yarn diameter 1.6 mm. このモノフィラメントの耐久性を表1 Table 1 the durability of this monofilament
に示す。 To show.

【0021】 [0021]

【比較例2】ナイロン610樹脂のペレット100%で実施例1と同様の方法で、糸径1.6mmの研磨用モノフィラメントを得た。 In Comparative Example 2 the same method as in Example 1 at 100% pellets of nylon 610 resin to obtain a polishing monofilament yarn diameter 1.6 mm. このモノフィラメントの耐久性を表1に示す。 It shows the durability of the monofilament in Table 1.

【0022】 [0022]

【比較例3】ナイロン612樹脂のペレット100%で実施例1と同様の方法で、糸径1.6mmの研磨用モノフィラメントを得た。 In Comparative Example 3 Nylon 612 the same method as in Example 1 with 100% pellets of the resin, to obtain a polishing monofilament yarn diameter 1.6 mm. このモノフィラメントの耐久性を表1に示す。 It shows the durability of the monofilament in Table 1.

【0023】 [0023]

【比較例4】ナイロン6樹脂とナイロン610樹脂の比率を75:25として、砥材粒子及びカップリング剤を加えずに実施例1と同様の方法で紡糸を実施したところ、紡口直下でポリマーがつながらずモノフィラメントを得ることができなかった。 The ratio of the Comparative Example 4 Nylon 6 resin and nylon 610 resin as a 75:25, was subjected to a spinning in the same manner as in Example 1 without adding abrasive particles and a coupling agent, the polymer directly under the spinneret it was not possible to obtain a monofilament not lead.

【0024】 [0024]

【比較例5】ナイロン6樹脂とナイロン610樹脂の比率を75:25として、カップリング剤を加え、砥剤粒子を加えずに実施例1と同様の方法で紡糸を実施したところ、紡口直下でポリマーがつながらずモノフィラメントを得ることができなかった。 The ratio of the Comparative Example 5 Nylon 6 resin and nylon 610 resin as a 75:25, a coupling agent was added, was subjected to a spinning in the same manner as in Example 1 without adding abrasive agent particles, spinneret directly below in it was not possible to obtain a monofilament not lead the polymer.

【0025】 [0025]

【比較例6】ナイロン6とナイロン66との共重合樹脂(ナイロン6成分とナイロン66成分の比率は85:1 [Comparative Example 6] The copolymer resin (nylon 6 component and nylon 66 ratio of the components of nylon 6 and nylon 66 85: 1
5)のペレットを用いて実施例1と同様の方法で、糸径1.6mmの研磨用モノフィラメントを得た。 In the same manner as in Example 1 using a pellet of 5), to obtain a polishing monofilament yarn diameter 1.6 mm. このモノフィラメントの耐久性を表1に示す。 It shows the durability of the monofilament in Table 1.

【0026】 [0026]

【比較例7】ナイロン12樹脂のペレットを用いて実施例1と同様の方法で、1.6mmの研磨用モノフィラメントを得た。 In Comparative Example 7] Nylon 12 resin pellets in the same manner as in Example 1 by using, to obtain a 1.6mm abrasive monofilaments. このモノフィラメントの耐久性を表1に示す。 It shows the durability of the monofilament in Table 1. この表1から明かなように、今までの研磨用モノフィラメントは88℃スプレー温水を使用した時の耐久性を大きく向上させていることが明らかである。 Table 1 As is apparent from, abrasive monofilament far is clear that significantly improves the durability when using 88 ° C. Spray hot water.

【0027】 [0027]

【表1】 [Table 1]

【0028】 [0028]

【発明の効果】本発明の研磨用モノフィラメントは従来のものに比較して高温での耐久性が非常に優れている。 Polishing monofilament of the present invention exhibits durability at high temperatures as compared with the conventional are excellent.
したがって、冷却水温度の高い用途での工業用ブラシに応用すると優れた耐久性が得られ、研磨、研削効果を充分に発揮することができる。 Accordingly, excellent durability and applicable to industrial brushes at high coolant temperature applications can be obtained, it is possible to sufficiently exhibit polishing, grinding effect.

───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl. 7 ,DB名) D01F 6/90 D01F 6/60 ────────────────────────────────────────────────── ─── of the front page continued (58) investigated the field (Int.Cl. 7, DB name) D01F 6/90 D01F 6/60

Claims (1)

    (57)【特許請求の範囲】 (57) [the claims]
  1. 【請求項1】 ナイロン樹脂と粒度が#30〜#300 1. A nylon resin and a particle size # 30 # 300
    0の砥材粒子からなるモノフィラメントであって、該ナイロン樹脂が相対粘度3.0以上のナイロン610樹脂、ナイロン612樹脂から選ばれる少なくとも1つの樹脂と相対粘度3.0以上のナイロン6樹脂とを含有し、それらの重量割合が20:80〜80:20であり、かつ該モノフィラメント中の砥材粒子の割合が5〜 A monofilament consisting of abrasive particles of 0, the nylon resin is at least one resin and a relative viscosity of 3.0 or more nylon 6 resin selected from the relative viscosity 3.0 or more nylon 610 resin, nylon 612 resin contained, their weight ratio is 20: 80 to 80: a 20, and the proportion of abrasive particles in said monofilament 5
    50重量%であることを特徴とする研磨用モノフィラメント。 Abrasive monofilament, which is a 50% by weight.
JP23122593A 1993-09-17 1993-09-17 Polishing monofilament Expired - Fee Related JP3194269B2 (en)

Priority Applications (1)

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JP23122593A JP3194269B2 (en) 1993-09-17 1993-09-17 Polishing monofilament

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