JP4881603B2 - Nylon resin composition - Google Patents

Nylon resin composition Download PDF

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JP4881603B2
JP4881603B2 JP2005309711A JP2005309711A JP4881603B2 JP 4881603 B2 JP4881603 B2 JP 4881603B2 JP 2005309711 A JP2005309711 A JP 2005309711A JP 2005309711 A JP2005309711 A JP 2005309711A JP 4881603 B2 JP4881603 B2 JP 4881603B2
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nylon
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molded product
flexibility
nylon resin
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JP2007119519A (en
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実 大塩
祐治 中林
晴彦 伊藤
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Nitta Corp
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この発明は、製品の柔軟性を向上させることができるナイロン樹脂組成物に関するものである。   The present invention relates to a nylon resin composition that can improve the flexibility of a product.

従来より、種々の工業製品にナイロン樹脂が利用されている。   Conventionally, nylon resins have been used in various industrial products.

このナイロン樹脂は結晶性が高く、耐薬品性に優れ、優れた強靭性・耐衝撃性・柔軟性を示すという特徴がある(例えば、非特許文献1)。   This nylon resin is characterized by high crystallinity, excellent chemical resistance, and excellent toughness, impact resistance and flexibility (for example, Non-Patent Document 1).

ところでナイロン樹脂を流体の配管チューブなどに利用する場合、できればその柔軟性をより向上させたいという要望がある。このため、ナイロン樹脂原料にエラストマー成分を添加する方法が考えられる。   By the way, when nylon resin is used for a fluid piping tube or the like, there is a demand to improve its flexibility if possible. For this reason, the method of adding an elastomer component to a nylon resin raw material can be considered.

しかし、柔軟性を向上させるためにナイロン樹脂原料にエラストマー成分をあまり多く添加すると、白化して透明性が損なわれる傾向があるという問題があった。
フリー百科事典『ウィキペディア(Wikipedia)』ホームページ、“ポリアミド系樹脂”、[2005/5/19検索]、インターネット<URL:http://ja.wikipedia.org/wiki/%E3%83%9D%E3%83%AA%E3%82%A2%E3%83%9F%E3%83%89>
However, when too much elastomer component is added to the nylon resin raw material in order to improve flexibility, there is a problem that the transparency tends to be impaired due to whitening.
Free encyclopedia “Wikipedia” homepage, “Polyamide-based resin”, [2005/5/19 search], Internet <URL: http://en.wikipedia.org/wiki/%E3%83%9D%E3 % 83% AA% E3% 82% A2% E3% 83% 9F% E3% 83% 89>

そこでこの発明は、成形品の透明性をできるだけ悪化させずに柔軟性と並立させることができるナイロン樹脂組成物を提供しようとするものである。   Therefore, the present invention intends to provide a nylon resin composition that can be combined with flexibility without deteriorating the transparency of a molded product as much as possible.

前記課題を解決するためこの発明では次のような技術的手段を講じている。   In order to solve the above problems, the present invention takes the following technical means.

(1)この発明のナイロン樹脂組成物は、ナイロン11とナイロン12とが8:2〜2:8の重量比で配合されたことを特徴とする。前記重量比は、特に7:3〜3:7であることが好ましい。  (1) The nylon resin composition of the present invention is characterized in that nylon 11 and nylon 12 are blended in a weight ratio of 8: 2 to 2: 8. The weight ratio is particularly preferably 7: 3 to 3: 7.

前記ナイロン11はウンデカンラクタムを開環重縮合したポリアミドであり、ナイロン12はラウリルラクタムを開環重縮合したポリアミドである。そして、ナイロン11とナイロン12とは、通常ブレンドは行われずそれぞれ単独で使用される。   The nylon 11 is a polyamide obtained by ring-opening polycondensation of undecane lactam, and the nylon 12 is a polyamide obtained by ring-opening polycondensation of lauryl lactam. Nylon 11 and nylon 12 are usually used alone without being blended.

これに対し、この発明のナイロン樹脂組成物は前記のような技術常識とは異なりこれらを敢えてブレンドすることにより、全く予想外なことに透明性を殆ど悪化させずに柔軟性(硬度JIS D)も並立した成形品を得ることができた。   On the other hand, the nylon resin composition of the present invention, unlike the above-mentioned technical common sense, is blended with daring blends, so that the transparency (hardness JIS D) hardly deteriorates the transparency at all unexpectedly. In addition, a side-by-side molded product could be obtained.

すなわち、樹脂をブレンドすると成形品は白濁してその透明性は元々の樹脂のいずれよりも通常悪化するのであるが、この発明では成形品の透明性は意外なことに殆ど悪化しなかった。そのうえ、得られた成形品の柔軟性も全く意外なことに殆ど悪化していなかった。なお、硬度JIS Dとは柔軟性を示す指標として周知のものである。   That is, when the resin is blended, the molded product becomes cloudy and its transparency is usually worse than that of any of the original resins, but in this invention, the transparency of the molded product is surprisingly hardly deteriorated. In addition, the flexibility of the obtained molded product was hardly deteriorated. The hardness JIS D is a well-known index indicating flexibility.

ここで、ブルームが発生しない程度に可塑剤を添加してもよい。前記可塑剤として、芳香族スルホンアミド類、パラ−ヒドロキシ安息香酸2−エチルヘキシルなどの可塑剤、p−/又はo−ヒドロキシ安息香酸と分枝鎖を有する炭素数12〜22の脂肪族アルコールとのエステルからなる可塑剤などを例示することが出来る。   Here, a plasticizer may be added to such an extent that bloom does not occur. Examples of the plasticizer include aromatic sulfonamides, plasticizers such as 2-ethylhexyl para-hydroxybenzoate, p- / or o-hydroxybenzoic acid and branched chain aliphatic alcohols having 12 to 22 carbon atoms. Examples include plasticizers made of esters.

(2) 前記重量比が4:6〜6:4であることとしてもよい。  (2) The weight ratio may be 4: 6 to 6: 4.

このように構成すると、成形品の透明性を殆ど悪化させずに柔軟性及び耐磨耗性を向上させることができる。すなわち、得られた成形品の柔軟性及び耐磨耗性は元々のナイロン11の耐磨耗性とナイロン12の耐磨耗性との間の値を有するものであるが、この発明では全く意外なことにブレンドして得られた成形品の柔軟性及び耐磨耗性の方が元々のナイロン11及びナイロン12のいずれの柔軟性及び耐磨耗性よりも向上していた。   If comprised in this way, a softness | flexibility and abrasion resistance can be improved, without almost deteriorating the transparency of a molded article. That is, the flexibility and wear resistance of the obtained molded product have a value between the wear resistance of the original nylon 11 and the wear resistance of the nylon 12, but this invention is completely unexpected. In particular, the flexibility and wear resistance of the molded product obtained by blending were improved from those of the original nylon 11 and nylon 12.

(3) 前記ナイロン樹脂組成物を原料とすると、透明性を殆ど悪化させずに柔軟性を向上させたナイロン樹脂組成物製の成形品を提供することができる。前記成形品として、ギアなどの成型品や、チューブやシートなどの押出し成形品などを例示することができる。  (3) When the nylon resin composition is used as a raw material, it is possible to provide a molded product made of a nylon resin composition with improved flexibility without substantially deteriorating transparency. Examples of the molded product include molded products such as gears and extrusion molded products such as tubes and sheets.

この発明は上述のような構成であり、次の効果を有する。   The present invention is configured as described above and has the following effects.

常識的な使用形態に反してナイロン11とナイロン12をブレンドすると、成形品の透明性を殆ど悪化させずに柔軟性と並立させることができるナイロン樹脂組成物を提供することができる。   When nylon 11 and nylon 12 are blended contrary to common usage, it is possible to provide a nylon resin composition that can be combined with flexibility without substantially deteriorating the transparency of the molded product.

以下、この発明の実施の形態を説明する。   Embodiments of the present invention will be described below.

この実施形態のナイロン樹脂組成物は、ナイロン11とナイロン12とが8:2〜2:8の重量比で配合されものである。これらのナイロン樹脂組成物は、インジェクション(東芝機械社製、IS50EP)による射出成形により50mm×120mmのサイズで1.0mmの厚みのナイロン樹脂シート成形品を得た。   In the nylon resin composition of this embodiment, nylon 11 and nylon 12 are blended at a weight ratio of 8: 2 to 2: 8. These nylon resin compositions obtained a nylon resin sheet molded product having a size of 50 mm × 120 mm and a thickness of 1.0 mm by injection molding by injection (Toshiba Machine Co., Ltd., IS50EP).

(実施例1)
ナイロン11(アルケマ社製、リルサンBESN 0 TL)とナイロン12(宇部興産社製、ウベスタ3030U)とを7:3の重量比で配合したナイロン樹脂組成物を得て前記射出成形を行った。
Example 1
Nylon 11 (manufactured by Arkema, Rilsan BESN 0 TL) and nylon 12 (manufactured by Ube Industries, Uvesta 3030U) were blended at a weight ratio of 7: 3, and the injection molding was performed.

(実施例2)
ナイロン11(アルケマ社製、リルサンBESN 0 TL)とナイロン12(宇部興産社製、ウベスタ3030U)とを5:5の重量比で配合したナイロン樹脂組成物を得て前記射出成形を行った。
(Example 2)
Nylon 11 (manufactured by Arkema, Rilsan BESN 0 TL) and nylon 12 (manufactured by Ube Industries, Uvesta 3030U) were blended at a weight ratio of 5: 5, and the injection molding was performed.

(実施例3)
ナイロン11(アルケマ社製、リルサンBESN 0 TL)とナイロン12(宇部興産社製、ウベスタ3030U)とを3:7の重量比で配合したナイロン樹脂組成物を得て前記射出成形を行った。
(Example 3)
Nylon 11 (manufactured by Arkema, Rilsan BESN 0 TL) and nylon 12 (manufactured by Ube Industries, Uvesta 3030U) were blended at a weight ratio of 3: 7, and the injection molding was performed.

(比較例1)
ナイロン11(アルケマ社製、リルサンBESN 0 TL)単体を用いて前記射出成形を行った。
(Comparative Example 1)
The injection molding was performed using nylon 11 (manufactured by Arkema, Rilsan BESN 0 TL) alone.

(比較例2)
ナイロン12(宇部興産社製、ウベスタ3030U)単体を用いて前記射出成形を行った。
(Comparative Example 2)
The above injection molding was performed using nylon 12 (Ube Industries, Uvesta 3030U) alone.

前記ナイロン樹脂シート成形品により、次の評価試験を行った。   The following evaluation test was performed with the nylon resin sheet molded article.

1.透明性の評価試験
実施例及び比較例のナイロン樹脂シート成形品のUV吸収特性を測定することにより、その透明性を評価した。
1. Transparency Evaluation Test The transparency was evaluated by measuring the UV absorption characteristics of the nylon resin sheet molded articles of Examples and Comparative Examples.

紫外線可視分光光度計(日本分光社製、商品名V570)を用い、測定波長を200〜800nm、測定モードを吸光度測定、走査スピードを100nm/minという測定条件で行った。 試験結果を、図1のグラフに示す。このグラフ中、実施例1は「PA11:PA12=70:30」で「1」の折れ線で示し、実施例2は「PA11:PA12=50:50」で「2」の折れ線で示し、実施例3は「PA11:PA12=30:70」で「3」の折れ線で示し、比較例1は「PA11:PA12=100:0」で「4」の折れ線で示し、比較例2は「PA11:PA12=0:100」で「5」の折れ線で示す。   Using a UV-visible spectrophotometer (trade name V570, manufactured by JASCO Corporation), the measurement wavelength was 200 to 800 nm, the measurement mode was absorbance measurement, and the scanning speed was 100 nm / min. The test results are shown in the graph of FIG. In this graph, Example 1 shows “PA11: PA12 = 70: 30” with a “1” line, and Example 2 shows “PA11: PA12 = 50: 50” with a “2” line. 3 is “PA11: PA12 = 30: 70” and indicated by a broken line of “3”, Comparative Example 1 is indicated by “PA11: PA12 = 100: 0” and a broken line of “4”, and Comparative Example 2 is indicated by “PA11: PA12 = 0: 100 ”and indicated by a broken line“ 5 ”.

このグラフから把握できるように、実施例1(折れ線1)、実施例2(折れ線2)、実施例3(折れ線3)は、比較例1(折れ線4)、比較例2(折れ線5)の間にほぼ位置し(特に波長が300〜400nm付近)、実施例1〜3の透明性は比較例1,2の透明性のほぼ間にあることが分かる。すなわち、予想外なことにブレンドによる白濁は認められなかった。
2.硬度(JIS D)による柔軟性の評価試験
上記実施例及び比較例のナイロン樹脂シート成形品の硬度(JIS D)を測定することにより、その柔軟性を評価した。
As can be seen from this graph, Example 1 (polyline 1), Example 2 (polyline 2), and Example 3 (polyline 3) are between Comparative Example 1 (polyline 4) and Comparative Example 2 (polyline 5). It can be seen that the transparency of Examples 1 to 3 is approximately between the transparency of Comparative Examples 1 and 2 (particularly around 300 to 400 nm). That is, unexpectedly, no cloudiness due to blending was observed.
2. Flexibility evaluation test by hardness (JIS D) The flexibility (JIS D) of the above-mentioned Examples and Comparative Examples was measured by measuring the hardness (JIS D).

硬度計(ASKER社製、商品名DD2−D型)を用い、23℃、50RH%という測定条件で行った。試験は、JISK 7215に準拠して行った。 試験結果を、図2のグラフに示す。   The measurement was performed at 23 ° C. and 50 RH% using a hardness meter (trade name DD2-D, manufactured by ASKER). The test was conducted according to JISK 7215. The test results are shown in the graph of FIG.

このグラフから把握できるように、実施例1(配合比7:3)のJIS Dは76.5、実施例2(配合比5:5)のJIS Dは74.3、実施例3(配合比10:0)のJIS Dは76.6であって、比較例1(ナイロン11)のJIS Dの78.6と比較例2(ナイロン12)のJIS Dの74.7のほぼ間にあることが分かる。   As can be understood from this graph, JIS D of Example 1 (composition ratio 7: 3) is 76.5, JIS D of Example 2 (composition ratio 5: 5) is 74.3, Example 3 (composition ratio) The JIS D of 10: 0) is 76.6, and is approximately between 78.6 of JIS D of Comparative Example 1 (nylon 11) and 74.7 of JIS D of Comparative Example 2 (nylon 12). I understand.

ここで、実施例2(配合比5:5)は比較例1(ナイロン11)と比較例2(ナイロン12)のいずれよりも硬度(JIS D)が小さく、全く予想外なことに柔軟性はこれらよりも向上していた。
3.耐磨耗性の評価試験
上記実施例2及び比較例1,2のナイロン樹脂シート成形品の磨耗量を測定することにより、その耐磨耗性を評価した。
Here, Example 2 (compounding ratio 5: 5) has a hardness (JIS D) smaller than both Comparative Example 1 (Nylon 11) and Comparative Example 2 (Nylon 12), and the flexibility is totally unexpected. It was better than these.
3. Abrasion resistance evaluation test The abrasion resistance of the nylon resin sheet molded products of Example 2 and Comparative Examples 1 and 2 was measured to evaluate the abrasion resistance.

磨耗量の測定は、図8に示す往復式磨耗試験機を用いて測定を行った。この往復式磨耗試験機は、試験片1上を往復させて磨耗させる磨耗輪2(軸3に回動不能に固定されている)が揺動可能な可動部4に固定されている。可動部4は重り5により荷重されていると共に、ベルト6によって揺動駆動されるようにしている。試験条件は次の通りである。すなわち、前記摩耗輪2としてテーバー摩耗試験(JIS K7204)に使用されるH-22形摩耗輪を用い、重り5として2kgの荷重をかけ、100mmの長さを毎分20回の速度で100回揺動させた。試験結果を、図3のグラフに示す。   The amount of wear was measured using a reciprocating wear tester shown in FIG. In this reciprocating wear tester, a wear wheel 2 (fixed to the shaft 3 so as not to rotate) that is worn by reciprocating on a test piece 1 is fixed to a swingable movable portion 4. The movable part 4 is loaded by a weight 5 and is driven to swing by a belt 6. The test conditions are as follows. That is, an H-22 type wear wheel used in the Taber abrasion test (JIS K7204) is used as the wear wheel 2, a load of 2 kg is applied as the weight 5, and the length of 100 mm is 100 times at a speed of 20 times per minute. Rocked. The test results are shown in the graph of FIG.

このグラフから把握できるように、実施例2(配合比5:5)の磨耗量は0.002ccであって、比較例1(ナイロン11)の磨耗量0.007ccと比較例2(ナイロン12)の磨耗量0.003ccのいずれよりも小さく、全く予想外なことに耐磨耗性はこれらよりも向上していた。   As can be seen from this graph, the wear amount of Example 2 (mixing ratio 5: 5) is 0.002 cc, and the wear amount of Comparative Example 1 (nylon 11) is 0.007 cc and Comparative Example 2 (nylon 12). The amount of wear was smaller than any of 0.003 cc, and unexpectedly, the wear resistance was improved more than these.

次に、この実施形態のナイロン樹脂組成物の使用状態を説明する。   Next, the use state of the nylon resin composition of this embodiment will be described.

ナイロン11とナイロン12とは、通常ブレンドは行われずそれぞれ単独で使用される。これに対し、この実施形態のナイロン樹脂組成物は前記のような技術常識とは異なりこれらを敢えて8:2〜2:8好ましくは7:3〜3:7にブレンドすることにより、全く予想外なことに透明性を殆ど悪化させずに柔軟性(硬度JIS D)も並立した成形品を得ることができた。   Nylon 11 and nylon 12 are usually used alone without being blended. On the other hand, the nylon resin composition of this embodiment differs from the above-mentioned technical common sense, and it is completely unexpected by blending these into 8: 2 to 2: 8, preferably 7: 3 to 3: 7. In particular, it was possible to obtain a molded product having flexibility (hardness JIS D) side by side with almost no deterioration in transparency.

すなわち、樹脂をブレンドするとその成形品は白濁してその透明性は元々の樹脂のいずれよりも通常悪化するのであるが、この実施形態では成形品の透明性は意外なことに殆ど悪化しなかった。そのうえ、得られた成形品の柔軟性も全く意外なことに殆ど悪化していなかった。   That is, when the resin is blended, the molded product becomes cloudy and its transparency is usually worse than that of any of the original resins, but in this embodiment, the transparency of the molded product was surprisingly hardly deteriorated. . In addition, the flexibility of the obtained molded product was hardly deteriorated.

またナイロン11とナイロン12の重量比を4:6〜6:4とすると、成形品の透明性を殆ど悪化させずに柔軟性及び耐磨耗性を向上させることができた。すなわち、得られた成形品の柔軟性及び耐磨耗性は元々のナイロン11の耐磨耗性とナイロン12の耐磨耗性との間の値を有するものであるが、この実施形態では全く意外なことにブレンドして得られた成形品の柔軟性及び耐磨耗性の方が元々のナイロン11及びナイロン12のいずれの柔軟性及び耐磨耗性よりも向上していた。   Further, when the weight ratio of nylon 11 to nylon 12 was 4: 6 to 6: 4, flexibility and wear resistance could be improved without substantially deteriorating the transparency of the molded product. That is, the flexibility and wear resistance of the obtained molded product has a value between the wear resistance of the original nylon 11 and the wear resistance of the nylon 12, but in this embodiment, it is completely different. Surprisingly, the flexibility and abrasion resistance of the molded product obtained by blending were improved from those of both the original nylon 11 and nylon 12.

以上のように、上記ナイロン樹脂組成物を原料とすると成形品の透明性を殆ど悪化させずに柔軟性を向上させることができ、ギアなどの成型品や、チューブやシートなどの押出し成形品などを製造することができる。   As described above, when the above-mentioned nylon resin composition is used as a raw material, flexibility can be improved without substantially deteriorating the transparency of the molded product, such as a molded product such as a gear or an extruded molded product such as a tube or a sheet. Can be manufactured.

上記ナイロン樹脂シート成形品により、更に次の評価試験を行った。
1.融点の評価試験
実施例及び比較例のナイロン樹脂シート成形品の融解ピーク温度を測定することにより、その融点を評価した。
The following evaluation test was further performed with the above-mentioned molded product of nylon resin sheet.
1. Evaluation Test of Melting Point The melting point was evaluated by measuring the melting peak temperature of the nylon resin sheet molded products of Examples and Comparative Examples.

熱分析装置(マック・サイエンス社製、商品名DSC3100)を用い、JISK 7121に準拠して行った。 試験結果を、図4のグラフに示す。このグラフ中、実施例1は「PA11:PA12=70:30」、実施例2は「PA11:PA12=50:50」、実施例3は「PA11:PA12=30:70」、比較例1は「PA11:PA12=100:0」、比較例2は「PA11:PA12=0:100」で、それぞれナイロン11(PA11)の融解ピーク温度を四角形のプロットで、ナイロン12(PA12)の融解ピーク温度を菱形のプロットで示す。   The measurement was performed in accordance with JISK 7121 using a thermal analyzer (trade name DSC3100, manufactured by Mac Science). The test results are shown in the graph of FIG. In this graph, Example 1 is “PA11: PA12 = 70: 30”, Example 2 is “PA11: PA12 = 50: 50”, Example 3 is “PA11: PA12 = 30: 70”, and Comparative Example 1 is “PA11: PA12 = 100: 0”, Comparative Example 2 is “PA11: PA12 = 0: 100”, and the melting peak temperature of nylon 11 (PA11) is a rectangular plot, and the melting peak temperature of nylon 12 (PA12). Is indicated by a rhombus plot.

このグラフから、ナイロン11が先に結晶化するためナイロン12の結晶化を阻害しており、ナイロン12が結晶化しきれずにいる可能性も推測できる。また、ナイロン12のブレンド比が多くなるとナイロン11の融解ピークも低下しておりナイロン12に引っ張られていることも推測できる。   From this graph, since nylon 11 crystallizes first, the crystallization of nylon 12 is inhibited, and it can be estimated that nylon 12 is not completely crystallized. Moreover, when the blend ratio of nylon 12 increases, the melting peak of nylon 11 also decreases, and it can be estimated that the nylon 12 is pulled.

2.軟化温度の評価試験
実施例及び比較例のナイロン樹脂シート成形品の軟化温度(ピーク温度)を測定した。
2. Evaluation test of softening temperature The softening temperature (peak temperature) of the nylon resin sheet molded products of Examples and Comparative Examples was measured.

軟化温度試験機(マック・サイエンス社製、商品名TMA4000)を用い、昇温5℃、N50ml/min、荷重50gという測定条件で行った。試験は、JISK 7196に準拠して行った。 試験結果を、図5のグラフに示す。このグラフ中、実施例1は「PA11:PA12=70:30」、実施例2は「PA11:PA12=50:50」、実施例3は「PA11:PA12=30:70」、比較例1は「PA11:PA12=100:0」、比較例2は「PA11:PA12=0:100」で示す。 A softening temperature tester (manufactured by Mac Science Co., Ltd., trade name: TMA4000) was used under the measurement conditions of a temperature increase of 5 ° C., N 2 50 ml / min, and a load of 50 g. The test was conducted according to JISK 7196. The test results are shown in the graph of FIG. In this graph, Example 1 is “PA11: PA12 = 70: 30”, Example 2 is “PA11: PA12 = 50: 50”, Example 3 is “PA11: PA12 = 30: 70”, and Comparative Example 1 is “PA11: PA12 = 100: 0”, Comparative Example 2 is indicated by “PA11: PA12 = 0: 100”.

このグラフから、実施例のブレンド品は軟化温度について元々の単一樹脂のほぼ間の数値を有しておりこれらよりも殆ど悪化していないことが把握できる。   From this graph, it can be understood that the blended product of the example has almost the same numerical value as that of the original single resin with respect to the softening temperature and hardly deteriorates.

3.融解熱量の評価試験
実施例及び比較例のナイロン樹脂シート成形品の融解熱量を測定した。
3. Evaluation test of heat of fusion The heat of fusion of the nylon resin sheet molded products of Examples and Comparative Examples was measured.

熱分析装置(マック・サイエンス社製、商品名DSC3100)を用い、昇温20℃/min、N50ml/minという測定条件で行った。試験は、JISK 7122に準拠して行った。 試験結果を、図6のグラフに示す。このグラフ中、実施例1は「PA11:PA12=70:30」、実施例2は「PA11:PA12=50:50」、実施例3は「PA11:PA12=30:70」、比較例1は「PA11:PA12=100:0」、比較例2は「PA11:PA12=0:100」で示す。 A thermal analyzer (manufactured by Mac Science, trade name DSC3100) was used under the measurement conditions of a temperature increase of 20 ° C./min and N 2 of 50 ml / min. The test was performed according to JISK7122. The test results are shown in the graph of FIG. In this graph, Example 1 is “PA11: PA12 = 70: 30”, Example 2 is “PA11: PA12 = 50: 50”, Example 3 is “PA11: PA12 = 30: 70”, and Comparative Example 1 is “PA11: PA12 = 100: 0”, Comparative Example 2 is indicated by “PA11: PA12 = 0: 100”.

このグラフから、実施例のブレンド品は融解熱量について元々の単一樹脂のときとほぼ同等の数値を有していることが把握できる。   From this graph, it can be understood that the blended product of the example has a numerical value almost equal to that of the original single resin with respect to the heat of fusion.

4.引張特性の評価試験
実施例及び比較例のナイロン樹脂シート成形品の引張特性を測定して評価した。
4). Evaluation Test of Tensile Properties The tensile properties of the nylon resin sheet molded products of Examples and Comparative Examples were measured and evaluated.

引張試験機(島津製作所社製、商品名AGS500D)を用い、JISK 7215に準拠して行った。 試験結果を、図7のグラフに示す。このグラフ中、実施例1は「PA11:PA12=70:30」、実施例2は「PA11:PA12=50:50」、実施例3は「PA11:PA12=30:70」、比較例1は「PA11:PA12=100:0」、比較例2は「PA11:PA12=0:100」で、それぞれの伸び率(%)の測定結果を菱形のプロットで、破断応力(MPa)の測定結果を四角形のプロットで、降伏点応力(MPa)の測定結果を三角形のプロットで示す。   A tensile tester (manufactured by Shimadzu Corporation, trade name: AGS500D) was used in accordance with JISK 7215. The test results are shown in the graph of FIG. In this graph, Example 1 is “PA11: PA12 = 70: 30”, Example 2 is “PA11: PA12 = 50: 50”, Example 3 is “PA11: PA12 = 30: 70”, and Comparative Example 1 is “PA11: PA12 = 100: 0”, comparative example 2 is “PA11: PA12 = 0: 100”, the measurement results of the respective elongation percentages (%) are plotted in rhombuses, and the measurement results of the breaking stress (MPa) are shown. The square plot shows the measurement result of the yield point stress (MPa) as a triangular plot.

このグラフから、実施例のブレンド品は破断応力と降伏点応力について元々の単一樹脂のときとほぼ同等のレベルを維持していることが把握できる。   From this graph, it can be understood that the blended product of the example maintains approximately the same level of breaking stress and yield point stress as the original single resin.

常識的な使用形態に反してナイロン11とナイロン12をブレンドすると、成形品の透明性を殆ど悪化させずに柔軟性が並立させることができることによって種々の工業製品の用途に適用することができる。   When nylon 11 and nylon 12 are blended contrary to common usage, it can be applied to various industrial products by allowing the flexibility to be aligned side by side without almost deteriorating the transparency of the molded product.

UV吸収特性の吸光度の測定結果を示すグラフ。The graph which shows the measurement result of the light absorbency of UV absorption characteristic. JIS D硬度の測定結果を示すグラフ。The graph which shows the measurement result of JISD hardness. 往復式磨耗試験の磨耗量の測定結果を示すグラフ。The graph which shows the measurement result of the abrasion loss of a reciprocating abrasion test. 融解ピーク温度の測定結果を示すグラフ。The graph which shows the measurement result of melting peak temperature. TMA軟化温度の測定結果を示すグラフ。The graph which shows the measurement result of TMA softening temperature. 融解熱量の測定結果を示すグラフ。The graph which shows the measurement result of heat of fusion. 引張特性の測定結果を示すグラフ。The graph which shows the measurement result of a tensile characteristic. 往復式磨耗試験機の構造を示す正面図。The front view which shows the structure of a reciprocating abrasion tester.

Claims (2)

ナイロン11とナイロン12とが4:6〜6:4の重量比で配合されたナイロン樹脂組成物を原料として成形された透明成形品And nylon 11 and nylon 12 is 4: 6 to 6: transparent molded article of the nylon resin compositions formulated at a weight ratio of 4 is molded as a raw material. 前記成形品が、チューブまたはシートである、請求項1記載の透明成形品The transparent molded product according to claim 1 , wherein the molded product is a tube or a sheet .
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