JPS62253654A - Production of 6-nylon composition having low water absorption as well as improved friction and abrasion resistance characteristic - Google Patents
Production of 6-nylon composition having low water absorption as well as improved friction and abrasion resistance characteristicInfo
- Publication number
- JPS62253654A JPS62253654A JP7494886A JP7494886A JPS62253654A JP S62253654 A JPS62253654 A JP S62253654A JP 7494886 A JP7494886 A JP 7494886A JP 7494886 A JP7494886 A JP 7494886A JP S62253654 A JPS62253654 A JP S62253654A
- Authority
- JP
- Japan
- Prior art keywords
- nylon
- water absorption
- low water
- molecular weight
- well
- 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.)
- Pending
Links
- 239000004677 Nylon Substances 0.000 title claims abstract description 32
- 229920001778 nylon Polymers 0.000 title claims abstract description 32
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 239000000203 mixture Substances 0.000 title claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 238000005299 abrasion Methods 0.000 title abstract description 3
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims abstract description 11
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims abstract description 11
- 239000011347 resin Substances 0.000 claims abstract description 9
- 229920005989 resin Polymers 0.000 claims abstract description 9
- 238000001125 extrusion Methods 0.000 claims abstract description 7
- 238000001746 injection moulding Methods 0.000 claims abstract description 7
- 238000000748 compression moulding Methods 0.000 claims abstract description 3
- 239000007924 injection Substances 0.000 abstract description 3
- 239000000843 powder Substances 0.000 abstract description 3
- 239000004698 Polyethylene Substances 0.000 abstract description 2
- -1 polyethylene Polymers 0.000 abstract description 2
- 229920000573 polyethylene Polymers 0.000 abstract description 2
- 230000006835 compression Effects 0.000 abstract 1
- 239000008188 pellet Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 230000032798 delamination Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は６−ナイロンの製造方法に関するもので、更に
詳しくは吸水率が低く寸法安定性、耐摩擦摩耗特性にす
ぐれた６−ナイロンの製造方法に関するものである。Detailed Description of the Invention (Industrial Application Field) The present invention relates to a method for producing 6-nylon, and more specifically, to a method for producing 6-nylon, which has low water absorption, dimensional stability, and excellent friction and wear resistance. It is about the method.
（従来技術）
一般に６−ナイロンは金属に比較して自己潤滑性に優れ
、低摩擦係数で耐摩擦摩耗性が良く、軽量で摺動時の騒
音が小さいため、軸受、歯車、ローラー、カム、ガイド
レール等の無注油摺動部品として、極めて有用である。(Prior art) In general, 6-nylon has superior self-lubricating properties compared to metals, has a low coefficient of friction, good friction and wear resistance, is lightweight and produces less noise when sliding, so it is used in bearings, gears, rollers, cams, etc. Extremely useful as oil-free sliding parts such as guide rails.
しかしながらエンジニアリングプラスチックの中にあっ
て、６−ナイロンは加工後の吸水率が大きいため、その
用途が限定されているのが現状である。更に、摺動部品
としてみた場合、限界ｐｖ値、叩ち摩擦限界負荷特性が
比較的、低いため低負荷の用途に限定されている。However, among engineering plastics, 6-nylon has a high water absorption rate after processing, so its uses are currently limited. Furthermore, when viewed as a sliding component, the limit pv value and striking friction limit load characteristics are relatively low, so that applications are limited to low loads.
尚、ここでいう限界ＰＶ値とは一般に軸受材料が、ある
一定の面圧Ｐ （ｋｇ ／ ｃＩｌｌ）と周速Ｖ （ｍ
／１ｌｌｉｎ ）以上になると材料が融けたり、焼は付
いたりする負荷の限界値を示す。従って、限界ｐｖ値が
大きい程、耐摩擦摩耗性は良好であり高負荷に耐えるこ
とを意味する。Note that the limit PV value referred to here generally means that the bearing material has a certain surface pressure P (kg/cIll) and circumferential speed V (m
/1llin) or more indicates the limit value of the load at which the material will melt or seize. Therefore, the larger the limit pv value is, the better the friction and wear resistance is, meaning that it can withstand high loads.
従来、６−ナイロンの吸水率の低下、即ち加工後の寸法
安定性を図るため、ガラス繊維や各種無機充填剤を６−
ナイロンにブレンドしたり、ラウリルラクタムの様なア
ミド基の濃度の低い物と共重合している。しかし、これ
らはいずれも限界Ｐ■値が小さくなるという欠点がある
。Conventionally, glass fibers and various inorganic fillers have been added to 6-nylon in order to reduce the water absorption rate of 6-nylon, that is, to improve its dimensional stability after processing.
It is blended with nylon or copolymerized with materials with a low concentration of amide groups, such as lauryllactam. However, all of these have the disadvantage that the limit P■ value becomes small.
また、６−ナイロンのｆｑ、陳摩耗特性を改善するため
に二硫化モリブデン、グラファイト、オイル、ワックス
等の潤滑剤を添加することが行われているが、これらは
、吸水率が高くスクリューへのくい込み性、表面性に問
題がある。In addition, lubricants such as molybdenum disulfide, graphite, oil, and wax are added to improve the fq and wear characteristics of 6-nylon, but these have high water absorption and are difficult to attach to the screw. There are problems with penetration and surface properties.
（発明が解決しようとする問題点）
本発明は上記従来技術の問題点を解消し、吸水率が低く
、寸法安定性、耐摩擦摩耗性にすぐれた６−ナイロンの
製造方法を提供する点にある。(Problems to be Solved by the Invention) The present invention solves the above-mentioned problems of the prior art and provides a method for producing 6-nylon that has low water absorption, excellent dimensional stability, and excellent friction and wear resistance. be.
（本発明を解決するための手段）
本発明の特徴とするところは、２軸押用機を用いて超高
分子量ポリエチレン粉末１〜ｌＱｗｔ％を６−ナイロン
に均一に分散することを特徴とし、得られた混合樹脂を
用いて射出成形、圧縮成形、押出成形により樹脂成形体
を得ることを特徴とする吸水率の低い、耐摩擦摩耗特性
のすぐれた６−ナイロンの製造方法である。(Means for Solving the Present Invention) The present invention is characterized in that 1 to 1 Qwt% of ultra-high molecular weight polyethylene powder is uniformly dispersed in 6-nylon using a twin-screw extruder, This is a method for producing 6-nylon having low water absorption and excellent friction and wear resistance, which is characterized by obtaining a resin molded article by injection molding, compression molding, or extrusion molding using the obtained mixed resin.
一般に超高分子量ポリエチレン粉末の粒子径は約１０〜
２００μｍ程度であるため、直接シングルスクリユーで
射出成形品を得ようとしても６−ナイロンと超高分″ｆ
！−量ポリエチレンが分散して、均一な成形品を得るこ
とが困難である。そのため２軸押用機により予め均一に
ｌ昆練した樹脂ベレットを得ることが必要である。こう
して得られた樹脂ベレットを用いて射出成形して得られ
たテストピースを用いて、吸水率、限界ｐｖ値を測定し
たところ不思議なことに吸水率の大幅な低下と限界ｐｖ
値の大幅な向上を示し、また成形品にデラミネーション
は発生しなかった。Generally, the particle size of ultra-high molecular weight polyethylene powder is about 10~
Since it is about 200 μm, even if you try to make an injection molded product directly with a single screw, it will be made of 6-nylon and super high
! - It is difficult to obtain uniform molded products because the amount of polyethylene is dispersed. Therefore, it is necessary to obtain uniformly kneaded resin pellets in advance using a twin-screw extrusion machine. When we measured the water absorption rate and limit pv value using a test piece obtained by injection molding using the resin pellet obtained in this way, it was strange to find that the water absorption rate significantly decreased and the limit pv value.
It showed a significant improvement in the value, and no delamination occurred in the molded product.
なぜこのような効果が得られるのか現在のところ判明し
ていないが、２軸押用機で混練すると超高分子量ポリエ
チレンがデラミネーションを発生しない程度に一部熔融
しているためではないかと思われる。It is currently unknown why this effect is obtained, but it is thought that it is because when kneaded in a twin-screw extruder, the ultra-high molecular weight polyethylene is partially melted to the extent that delamination does not occur. .
以下、実施例により更に詳述する。This will be explained in more detail below with reference to Examples.
実施例１
６−ナイロン（ユニチカナイロン：ＦＬ−１）４９５０
ｇと微粒子状の超高分子量ポリエチレン（ミペロンＸＭ
２２０：三井石油化学製＞５０ｇをヘンシェルミキサー
で５分間攪件し、２軸押用機（ＰＣＭ−４５：池貝鉄工
製）で混練し、得られたストランドをペレタイザーにて
ベレット状にして射出成形に用いた。Example 1 6-nylon (Unitika nylon: FL-1) 4950
g and fine particulate ultra-high molecular weight polyethylene (Miperon
220: Mitsui Petrochemical Co., Ltd.>50g was stirred for 5 minutes using a Henschel mixer, then kneaded using a twin-screw extruder (PCM-45: Ikegai Iron Works), and the resulting strand was formed into a pellet using a pelletizer for injection molding. It was used for.
得られたテストピース（φ５０Ｘ３．２ｔ）を用いて、
吸水試験及び松原式スラスト試験をした結果は次の通り
であった。Using the obtained test piece (φ50 x 3.2t),
The results of the water absorption test and Matsubara thrust test were as follows.
吸水率（％） １．７０（２３℃
Ｘ２４ＨＲ５）
限界ｐｖ値（ｋｇ／ｃ＋ｊ−ｒｎ／ｌ１ｌｉｎ ）
２４００実施例２
実施例１と同様に６−ナイロン（ユニチカナーイロンＦ
Ｌ−１） ４７５０ ｇと微粒子状の超高分子量ポリ
エチレン（ミペロンＸＭ２２０）２５０ｇを実施例１同
じ２軸押用機で混練し、得られたベレットを用いて射出
成形によりテストピースを得た。テストピースの吸水試
験及び松原式スラスト試験の結果は次の通りであった。Water absorption rate (%) 1.70 (23℃
X24HR5) Limit pv value (kg/c+j-rn/l1lin)
2400 Example 2 Same as Example 1, 6-nylon (Unitika Nylon F
L-1) 4750 g and 250 g of ultra-high molecular weight polyethylene (Miperon The results of the water absorption test and Matsubara thrust test of the test piece were as follows.
吸水率（％） １．４５（２３
℃Ｘ２４ＨＲ５）
限界ｐｖ値（ｋｇ／ｃｄ−ｒｎ／ｍ１ｎ） ３４５０
実施例３
実施例１において６−ナイロン（ユニチカナイロンＦＬ
−１）４５００ｇと超高分子量ポリエチレン５００ｇを
用いた以外は実施例と同じ操作を行いテストピースを得
た。テストピースの吸水試験及び松原式スラスト試験の
結果は次の通りであった。Water absorption rate (%) 1.45 (23
℃X24HR5) Limit pv value (kg/cd-rn/m1n) 3450
Example 3 In Example 1, 6-nylon (Unitika Nylon FL
-1) A test piece was obtained by carrying out the same operation as in the example except that 4,500 g and 500 g of ultra-high molecular weight polyethylene were used. The results of the water absorption test and Matsubara thrust test of the test piece were as follows.
吸水率（％） １．ｏｓ（２３
℃Ｘ２４ＨＲ３）
限界ｐｖ値（ｋｇ／ｃＩＡ−ｍ／Ｔｌ１ｎ） ３４５
０比較例１
６−ナイロン（ユニチカナイ１コン：ＦＬ−１）を単独
で射出成形しテストピース（φ５０Ｘ３゜２１、）を得
た。テストピースの吸水率と松原式スラスト試験の結果
は次の通りだあった。Water absorption rate (%) 1. os(23
℃X24HR3) Limit pv value (kg/cIA-m/Tl1n) 345
0 Comparative Example 1 A test piece (φ50×3°21) was obtained by injection molding 6-nylon (Unitika Nai 1 Con: FL-1) alone. The water absorption rate of the test piece and the results of the Matsubara thrust test were as follows.
吸水率（％） １．８１（２３
℃ｘ２４［（Ｒ３）
限界ＰＶ値（ｋｇ／ｃａｌ−ｍ／ ｎ＋ｉｎ ）
ｌ ２００比較例２
６−ナイロン（ユニチカナイａン：ＦＬ−１）４５００
ｇと微粒子状の超高分子量ポリエチレン（ミヘ０７ＸＭ
２２０ ： 三井石油化学ｎｉ！！＞ ｓ 。Water absorption rate (%) 1.81 (23
°C x 24 [(R3) Limit PV value (kg/cal-m/n+in)
l 200 Comparative Example 2 6-Nylon (UNITIKA NA: FL-1) 4500
g and fine particulate ultra-high molecular weight polyethylene (Mihe 07XM
220: Mitsui Petrochemical Ni! ! >s.
Ｏｇをヘンシェルミキサーで５分間攪拌し、２軸押用機
を用いず直接射出成形して、テストピース（φ５０Ｘ３
，２闘ｔ）を得た。Mix Og for 5 minutes with a Henschel mixer and directly injection mold it without using a twin-screw extrusion machine to make a test piece (φ50×3
, 2 fights).
テストピースは、ミベロンの凝集した白い斑点のある不
均一なものであった。テストピースの吸水率と松原式ス
ラスト試験の結果は次の通りであった。The test piece was non-uniform with agglomerated white specks of mibellone. The water absorption rate of the test piece and the results of the Matsubara thrust test were as follows.
吸水率Ｃ％） １．４４（２３
℃Ｘ２４ＨＲ３）
限界ｐｖ値（ｋｉｒ／ｃ＋ｊ−ｍ／ｗｉｎ ） ３０
００比較例３
６−ナイロン（ユニチカナイロン：ＦＬ−１）４５００
ｇと高密度ポリエチレン（ユヵロンＨＤＪＸ２２０：三
菱油化■１ｉ！りベレット５ｏｏｇをヘンシェルミキサ
ーで５分間攪件し、２軸押用機（ＰＣＭ−４５８池貝鉄
工側製）で混線し得られたストランドをペレタイザーに
てペレット状にして射出成形に用いた。得られたテスト
ピース（φ５０×３鶴ｔ）はデラミネイションをおこし
ていた。テストピースの吸水率と松原式スラスト試験の
結果は次の通りであった。Water absorption rate C%) 1.44 (23
℃X24HR3) Limit pv value (kir/c+j-m/win) 30
00 Comparative Example 3 6-Nylon (Unitika Nylon: FL-1) 4500
g and high-density polyethylene (Yukalon HDJX220: Mitsubishi Yuka ■1i! Ri pellet 50og) were stirred for 5 minutes in a Henschel mixer, and the resulting strands were mixed in a twin-screw extrusion machine (PCM-458 manufactured by Ikegai Iron Works). It was made into pellets using a pelletizer and used for injection molding.The obtained test piece (φ50 x 3 cranes) had delamination.The water absorption rate of the test piece and the results of the Matsubara thrust test are as follows. there were.
吸水率（％） １．０９（２３℃
Ｘ２４ＨＲＳ）
限界ｐｖ値（ｋｇ／ｃｄ−ｍ／ ｗｉｎ ） ３６０
０（発明の効果）
本発明は以上の如く、１〜１０ｗｔ％の超高分子量ポリ
エチレンを２軸押用機により６−ナイロン中に均一に分
散せしめた樹脂ベレットを用いて各種成形を行うことに
より、吸水率が低く寸法安定性にすぐれ、且つ限界ｐｖ
値が大きく耐摩陳摩耗性良好な６−ナイロン成形品を得
ることができる。Water absorption rate (%) 1.09 (23℃
X24HRS) Limit pv value (kg/cd-m/win) 360
0 (Effects of the Invention) As described above, the present invention is achieved by performing various moldings using resin pellets in which 1 to 10 wt% of ultra-high molecular weight polyethylene is uniformly dispersed in 6-nylon using a twin-screw extrusion machine. , low water absorption, excellent dimensional stability, and limit pv
A 6-nylon molded product having a large value and good abrasion resistance can be obtained.
特許出願人 三ツ星ベルト株式会社
手続補正古（自発）
１、事件の表示
昭和６１年特許願第７４９４８号
２、発明の名称
吸水率が低く、耐／？！ＷＡ摩粍特性のすぐれた６−ナ
イロン組成物の製造方法
３、補正をする者
事件との関係 特許出願人
住所 神戸市長田区浜添通４丁目１番２１号自発補正
５、補正の対象
明細書の発明の詳細な説明の欄
６、補正の内容
（１）明細書第２頁１行目の「摺動時」を「駆動時」に
補正する。Patent applicant: Mitsuboshi Belting Co., Ltd. Procedural amendment old (spontaneous) 1. Indication of the case Patent Application No. 74948 of 1988 2. Name of the invention Low water absorption and resistance/? ! Process for manufacturing a 6-nylon composition with excellent WA friction properties 3, Relationship with the case of the person making the amendment Patent applicant address: 4-1-21 Hamazoe-dori, Nagata-ku, Kobe Voluntary amendment 5, of the specification subject to the amendment Detailed Description of the Invention Column 6, Contents of Amendment (1) "During sliding" in the first line of page 2 of the specification is corrected to "during driving."
（２）明細書第２頁２行目の「摺動」を削除する。(2) Delete "sliding" in the second line of the second page of the specification.
（３）明細書第２頁１９行目の「低い物」を「低いモノ
マー」に補正する。(3) "Low substance" on page 2, line 19 of the specification is corrected to "low monomer."
（／Ｉ）明細書第３頁５行目の「吸水率が高く」を削除
する。(/I) Delete "High water absorption" on page 3, line 5 of the specification.
（５）明細書筒４頁２行目の「分散」を「分離」に補正
する。(5) Correct "dispersion" on the second line of page 4 of the specification cylinder to "separation".
以上that's all
Claims (1)
押出機により、６−ナイロン中に均一に分散せしめた樹
脂を用いて、圧縮成形、射出成形、もしくは、押出成形
により樹脂成形体を得ることを特徴とする吸水率が低く
耐摩擦摩耗特性のすぐれた６−ナイロン組成物の製造方
法。1. A resin molded article is obtained by compression molding, injection molding, or extrusion molding using a resin in which 1 to 10 wt% of ultra-high molecular weight polyethylene is uniformly dispersed in 6-nylon using a twin-screw extruder. A method for producing a 6-nylon composition having low water absorption and excellent friction and wear resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7494886A JPS62253654A (en) | 1986-03-31 | 1986-03-31 | Production of 6-nylon composition having low water absorption as well as improved friction and abrasion resistance characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7494886A JPS62253654A (en) | 1986-03-31 | 1986-03-31 | Production of 6-nylon composition having low water absorption as well as improved friction and abrasion resistance characteristic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62253654A true JPS62253654A (en) | 1987-11-05 |
Family
ID=13562060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7494886A Pending JPS62253654A (en) | 1986-03-31 | 1986-03-31 | Production of 6-nylon composition having low water absorption as well as improved friction and abrasion resistance characteristic |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62253654A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011080013A (en) * | 2009-10-09 | 2011-04-21 | Mitsui Chemicals Inc | Fine polyolefin particles and modified fine polyolefin particles, resin composition containing them, and application of them |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60112853A (en) * | 1983-11-25 | 1985-06-19 | Ube Ind Ltd | Production of polyamide composition |
-
1986
- 1986-03-31 JP JP7494886A patent/JPS62253654A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60112853A (en) * | 1983-11-25 | 1985-06-19 | Ube Ind Ltd | Production of polyamide composition |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011080013A (en) * | 2009-10-09 | 2011-04-21 | Mitsui Chemicals Inc | Fine polyolefin particles and modified fine polyolefin particles, resin composition containing them, and application of them |
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