JP5929036B2 - Vinyl chloride resin composition for covering thin-walled wear-resistant electric wires and thin-walled wear-resistant electric wires - Google Patents
Vinyl chloride resin composition for covering thin-walled wear-resistant electric wires and thin-walled wear-resistant electric wires Download PDFInfo
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- 239000011342 resin composition Substances 0.000 title claims description 22
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 title claims description 17
- 239000004014 plasticizer Substances 0.000 claims description 22
- 239000011248 coating agent Substances 0.000 claims description 15
- 238000000576 coating method Methods 0.000 claims description 15
- 125000000217 alkyl group Chemical group 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 12
- 125000005591 trimellitate group Chemical group 0.000 claims description 12
- 125000004432 carbon atom Chemical group C* 0.000 claims description 9
- 239000008029 phthalate plasticizer Substances 0.000 claims description 9
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 8
- 239000004800 polyvinyl chloride Substances 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- 238000006116 polymerization reaction Methods 0.000 claims description 4
- 239000011247 coating layer Substances 0.000 description 13
- 230000007423 decrease Effects 0.000 description 5
- 239000004020 conductor Substances 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 3
- 229920002554 vinyl polymer Polymers 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- VJHINFRRDQUWOJ-UHFFFAOYSA-N dioctyl sebacate Chemical compound CCCCC(CC)COC(=O)CCCCCCCCC(=O)OCC(CC)CCCC VJHINFRRDQUWOJ-UHFFFAOYSA-N 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- CYIDZMCFTVVTJO-UHFFFAOYSA-N pyromellitic acid Chemical compound OC(=O)C1=CC(C(O)=O)=C(C(O)=O)C=C1C(O)=O CYIDZMCFTVVTJO-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- BKUSIKGSPSFQAC-RRKCRQDMSA-N 2'-deoxyinosine-5'-diphosphate Chemical compound O1[C@H](CO[P@@](O)(=O)OP(O)(O)=O)[C@@H](O)C[C@@H]1N1C(NC=NC2=O)=C2N=C1 BKUSIKGSPSFQAC-RRKCRQDMSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- ZVFDTKUVRCTHQE-UHFFFAOYSA-N Diisodecyl phthalate Chemical compound CC(C)CCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC(C)C ZVFDTKUVRCTHQE-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Chemical class 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- ZDWGXBPVPXVXMQ-UHFFFAOYSA-N bis(2-ethylhexyl) nonanedioate Chemical compound CCCCC(CC)COC(=O)CCCCCCCC(=O)OCC(CC)CCCC ZDWGXBPVPXVXMQ-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- -1 calcium and zinc Chemical class 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229960001545 hydrotalcite Drugs 0.000 description 1
- 229910001701 hydrotalcite Inorganic materials 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000010410 layer Substances 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
- 239000000203 mixture Substances 0.000 description 1
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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- Organic Insulating Materials (AREA)
- Insulated Conductors (AREA)
Description
本発明は、薄肉耐摩耗電線被覆用塩化ビニル樹脂組成物、および、そのような樹脂組成物から構成された絶縁層を有する薄肉耐摩耗電線に関する。 The present invention relates to a vinyl chloride resin composition for coating thin-walled wear-resistant electric wires, and a thin-walled wear-resistant electric wire having an insulating layer composed of such a resin composition.
自動車用低圧電線に関する国際規格であるＩＳＯ６７２２には被覆層の厚さが０．２ｍｍの電線について記載がある。このような厚さの被覆層において、用いる塩化ビニル樹脂組成物の硬度を高めることで耐摩耗性を向上させることができるが、このとき、耐寒性が悪化する。耐寒性を向上させるために、耐寒性を有する可塑剤（フタル酸ジイソデシル（ＤＩＤＰ）、セバシン酸ジ２-エチルヘキシル（ＤＯＳ）、アゼライン酸ジ２-エチルヘキシル（ＤＯＺ）等）の使用による解決が考えられるが、これら耐寒性を有する可塑剤を使用すると、耐熱性が極端に低下してしまう。 ISO 6722, an international standard for low-voltage electric wires for automobiles, describes an electric wire having a coating layer thickness of 0.2 mm. In the coating layer having such a thickness, the wear resistance can be improved by increasing the hardness of the vinyl chloride resin composition to be used, but at this time, the cold resistance is deteriorated. In order to improve cold resistance, a solution by using a plasticizer having cold resistance (diisodecyl phthalate (DIDP), di-2-ethylhexyl sebacate (DOS), di-2-ethylhexyl azelate, etc.) can be considered. However, when these plasticizers having cold resistance are used, the heat resistance is extremely lowered.
ここで、特開平１１−１７６２４０号公報（特許文献１）記載の技術では可塑剤として直鎖率の高いトリメリテートを用いることにより、上述のような薄肉被覆層であっても１０５℃までの耐熱性を有する組成物を得ているが、この技術では、耐寒性が低下するという問題点を有している。 Here, in the technique described in JP-A-11-176240 (Patent Document 1), by using trimellitate having a high linearity ratio as a plasticizer, even a thin coating layer as described above has a heat resistance up to 105 ° C. However, this technique has a problem that the cold resistance is lowered.
また、特開平９−８２１４１号公報（特許文献２）記載の技術では、ウィスカー状の充填剤を使用することにより、０．２ｍｍ厚の被覆層であっても高い耐摩耗性を得ることに成功しているが、やはり耐寒性が低下するという問題点を有している。 In the technique described in JP-A-9-82141 (Patent Document 2), by using a whisker-like filler, high wear resistance can be obtained even with a 0.2 mm thick coating layer. However, it still has a problem that cold resistance is lowered.
このように、薄い被覆層であっても、耐摩耗性、耐寒性、および、耐熱性の全てを満足させることができる薄肉耐摩耗電線被覆用塩化ビニル樹脂組成物が求められていた。 As described above, there has been a demand for a vinyl chloride resin composition for coating thin-walled wear-resistant electric wires that can satisfy all of wear resistance, cold resistance, and heat resistance even with a thin coating layer.
本発明は、上記した従来の問題点を改善する、すなわち、薄い被覆層であっても、耐摩耗性、耐寒性、および、耐熱性の全てを満足させることができる薄肉耐摩耗電線被覆用塩化ビニル樹脂組成物、および、そのような組成物から構成された被覆層を備えた薄肉耐摩耗電線を提供することを目的とする。 The present invention improves the above-mentioned conventional problems, that is, a thin-walled wear-resistant wire coating chloride that can satisfy all of wear resistance, cold resistance, and heat resistance even with a thin coating layer. An object of the present invention is to provide a vinyl resin composition and a thin wear-resistant electric wire provided with a coating layer composed of such a composition.
本発明の薄肉耐摩耗電線被覆用塩化ビニル樹脂組成物は上記課題を解決するため、請求項１に記載の通り、ポリ塩化ビニル１００重量部に対して、可塑剤として、下記化学式（１）中Ｒ1、Ｒ2、および、Ｒ3で示される基の８０％以上が、炭素数が８以上の直鎖状アルキル基であるトリメリテート系可塑剤と、下記化学式（２）中Ｒ4、および、Ｒ5で示される基の８０％以上が、炭素数が１０以上の直鎖状アルキル基であるフタレート系可塑剤とが、計２０重量部以上４０重量部以下配合されており、かつ、前記トリメリテート系可塑剤の配合量が、前記フタレート系可塑剤の配合量と前記トリメリテート系可塑剤の配合量との合計量の９０％以上９５％以下であることを特徴とする薄肉耐摩耗電線被覆用塩化ビニル樹脂組成物である。 In order to solve the above problems, the thin-walled wear-resistant wire covering vinyl resin composition of the present invention has the following chemical formula (1) as a plasticizer with respect to 100 parts by weight of polyvinyl chloride as described in claim 1. A trimellitate plasticizer in which 80% or more of the groups represented by R 1 , R 2 , and R 3 are linear alkyl groups having 8 or more carbon atoms, R 4 in the following chemical formula (2), and A total of 20 to 40 parts by weight of a phthalate plasticizer in which 80% or more of the groups represented by R 5 is a linear alkyl group having 10 or more carbon atoms is blended, and the trimellitate A thin wear-resistant wire covering chloride characterized in that the blending amount of the plasticizer is 90% to 95% of the total amount of the blending amount of the phthalate plasticizer and the blending amount of the trimellitate plasticizer. It is a vinyl resin composition.
また、本発明の薄肉耐摩耗電線被覆用塩化ビニル樹脂組成物は、請求項２に記載の通り、請求項１に記載の薄肉耐摩耗電線被覆用塩化ビニル樹脂組成物において、前記ポリ塩化ビニルの重合度が１０００以上２５００以下であることを特徴とする。
Further, the thin wear-resistant electric wire coating for vinyl chloride resin composition of the present invention, as described in
本発明の薄肉耐摩耗電線被覆用塩化ビニル樹脂組成物によれば、薄い被覆層であっても、自動車用薄肉電線として求められる耐摩耗性、耐寒性、および、耐熱性の全てを満足させることができる。 According to the vinyl chloride resin composition for coating thin-walled wear-resistant electric wires of the present invention, all of the wear resistance, cold resistance, and heat resistance required for thin-walled wires for automobiles are satisfied even with a thin coating layer. Can do.
本発明の薄肉耐摩耗電線被覆用塩化ビニル樹脂組成物は、ポリ塩化ビニル１００重量部をベース樹脂として含有する。 The vinyl chloride resin composition for coating thin-walled wear-resistant wires of the present invention contains 100 parts by weight of polyvinyl chloride as a base resin.
ポリ塩化ビニルの重合度としては、１０００以上２５００以下であることが好ましい。１０００未満であると耐熱性が悪くなりやすく、２５００超であると電線の被覆層形成時の押出し成形性が低下する。 The polymerization degree of polyvinyl chloride is preferably 1000 or more and 2500 or less. If it is less than 1000, the heat resistance tends to deteriorate, and if it exceeds 2500, the extrusion moldability at the time of forming the coating layer of the electric wire is lowered.
上記ベース樹脂１００重量部に対して、後述するトリメリテート系可塑剤とフタレート系可塑剤との２種類を必須の可塑剤として、計２０重量部以上４０重量部以下含有する。 For 100 parts by weight of the base resin, a total of 20 parts by weight or more and 40 parts by weight or less of two types of trimellitate plasticizer and phthalate plasticizer described below are contained as essential plasticizers.
本発明で必須のトリメリテート系可塑剤としては、化学式（１）中Ｒ1、Ｒ2、および、Ｒ3で示される基の５０％以上が、炭素数が平均８以上の直鎖状アルキル基であるトリメリテート系可塑剤である。このとき炭素数の上限は平均が１３であり，この値を超えると耐寒性が低下しやすくなる。 As the trimellitate plasticizer essential in the present invention, 50% or more of the groups represented by R 1 , R 2 and R 3 in the chemical formula (1) are linear alkyl groups having an average of 8 or more carbon atoms. A trimellitate plasticizer. At this time, the upper limit of the carbon number is 13 on average, and if this value is exceeded, cold resistance tends to decrease.
この条件が満たされない、すなわち、例えば、Ｒ1、Ｒ2、および、Ｒ3で示される基の５０％以上が、炭素数が平均７以下の直鎖状アルキル基であると耐熱性が低下して実用的ではなくなり、また、Ｒ1、Ｒ2、および、Ｒ3で示される基の５０％以上が分岐のあるアルキル基である場合には耐寒性が低下して実用的ではなくなる。 When this condition is not satisfied, that is, when, for example, 50% or more of the groups represented by R 1 , R 2 , and R 3 are linear alkyl groups having an average of 7 or less carbon atoms, the heat resistance decreases. In addition, when 50% or more of the groups represented by R 1 , R 2 , and R 3 are branched alkyl groups, the cold resistance is lowered and it is not practical.
また、本発明で必須のフタレート系可塑剤としては、下記化学式（２）中Ｒ4、および、Ｒ5で示される基の５０％以上が、炭素数が平均１０以上の直鎖状アルキル基であるフタレート系可塑剤である。このとき炭素数の上限は平均１３である。 Further, as the phthalate plasticizer essential in the present invention, 50% or more of the groups represented by R 4 and R 5 in the following chemical formula (2) are linear alkyl groups having an average of 10 or more carbon atoms. A phthalate plasticizer. At this time, the upper limit of the carbon number is 13 on average.
この条件が満たされない、すなわち、例えば、Ｒ4、および、Ｒ5で示される基の５０％以上が、炭素数が９以下の直鎖状アルキル基が５０％以上であると耐熱性が低下し、また、Ｒ4、および、Ｒ5で示される基の５０％以上が分岐のあるアルキル基である場合には耐寒性が低下する。 When this condition is not satisfied, that is, when, for example, 50% or more of the groups represented by R 4 and R 5 are 50% or more of a linear alkyl group having 9 or less carbon atoms, the heat resistance decreases. Further, when 50% or more of the groups represented by R 4 and R 5 are branched alkyl groups, the cold resistance is lowered .
これら２つの必須の可塑剤は、トリメリテート系可塑剤の配合量が、フタレート系可塑剤の配合量の５０％以上９５％以下となるように配合する。この比が５０％未満であると耐熱性が低下し、９５％超であると耐熱性が低下する。 These two essential plasticizers are blended so that the blending amount of the trimellitate plasticizer is 50% or more and 95% or less of the blending amount of the phthalate plasticizer. When this ratio is less than 50%, the heat resistance decreases, and when it exceeds 95%, the heat resistance decreases.
さらに上記の必須のトリメリテート系可塑剤の配合量が、上記必須のフタレート系可塑剤の配合量の９０％以上９５％以下とし、化学式（１）中Ｒ1、Ｒ2、および、Ｒ3で示される基の８０％以上が、直鎖状アルキル基であり、かつ、前記化学式（２）中Ｒ4、および、Ｒ5で示される基の８０％以上が、炭素数が１０以上の直鎖状アルキル基であると、耐寒性、及び、耐熱性に優れるので好ましい。 Furthermore, the blending amount of the essential trimellitate plasticizer is 90% to 95% of the blending amount of the essential phthalate plasticizer, and is represented by R 1 , R 2 and R 3 in the chemical formula (1). 80% or more of the groups are linear alkyl groups, and 80% or more of the groups represented by R 4 and R 5 in the chemical formula (2) are linear chains having 10 or more carbon atoms. An alkyl group is preferred because it is excellent in cold resistance and heat resistance.
本発明の薄肉耐摩耗電線被覆用塩化ビニル樹脂組成物には、上記必須の２種の可塑剤以外の可塑剤を含有していても良い。このような可塑剤としてピロメリット酸、ポリエステル可塑剤などが挙げられる。 The vinyl chloride resin composition for coating thin-walled wear-resistant wires of the present invention may contain a plasticizer other than the two essential plasticizers. Examples of such a plasticizer include pyromellitic acid and polyester plasticizer.
本発明の薄肉耐摩耗電線被覆用塩化ビニル樹脂組成物には、上述の必須成分の他に、本発明の効果を損なわない範囲で安定剤、無機充填剤、滑剤、難燃剤、難燃助剤等を配合しても良い。安定剤は鉛やバリウム等の重金属を用いないものを用いることが環境への配慮となり好ましい。このような重金属を有しない安定剤としてはハイドロタルサイト、カルシウムと亜鉛等の金属との塩、エポキシ系亜リン酸塩が挙げられる。 In addition to the above-mentioned essential components, the vinyl chloride resin composition for coating thin-walled wear-resistant wires of the present invention includes a stabilizer, an inorganic filler, a lubricant, a flame retardant, and a flame retardant aid as long as the effects of the present invention are not impaired. Etc. may be blended. It is preferable to use a stabilizer which does not use heavy metals such as lead and barium in consideration of the environment. Examples of such stabilizers having no heavy metal include hydrotalcite, salts of metals such as calcium and zinc, and epoxy phosphites.
本発明の薄肉耐摩耗電線被覆用塩化ビニル樹脂組成物はこれらの成分を例えばミキサーなどで混合して得られるが、押出成形機などで一旦ペレット化して用いても良い。 The vinyl chloride resin composition for coating thin-walled wear-resistant electric wires of the present invention can be obtained by mixing these components with, for example, a mixer, but may be once pelletized with an extruder or the like.
本発明の薄肉耐摩耗電線被覆用塩化ビニル樹脂組成物は一般の電線被覆用塩化ビニル樹脂組成物同様に導線周囲に押出成形することにより被覆電線の被覆層とすることができる。このとき、０．２ｍｍの薄い被覆層であっても、自動車用電線として求められる耐摩耗性、耐寒性、および、耐熱性の全てを満足させることができる The vinyl chloride resin composition for coating thin-walled abrasion-resistant wires of the present invention can be used as a coating layer for coated wires by extrusion molding around the conductors in the same manner as general vinyl chloride resin compositions for coating wires. At this time, even with a thin coating layer of 0.2 mm, it is possible to satisfy all of the wear resistance, cold resistance, and heat resistance required for an automobile electric wire.
以下に本発明の薄肉耐摩耗電線被覆用塩化ビニル樹脂組成物の実施例について具体的に説明する。 Examples of the vinyl chloride resin composition for coating thin-walled abrasion-resistant wires of the present invention will be specifically described below.
用いる原料の詳細について表１に示す。 Details of the raw materials used are shown in Table 1.
これら原料を用いて、表２〜４に示す配合量（重量部）になるように配合し、ミキサーにより混連して、実施例１〜９、比較例１〜１０の計１９種類の薄肉耐摩耗電線被覆用塩化ビニル樹脂組成物を得て、これらそれぞれを７本撚り線の導体（直径０．２７ｍｍ）周囲に押出す押出成形（加熱温度：１７０〜２３０℃の範囲で樹脂にあわせて調整）によって、９種類０．２ｍｍの被覆層を有する絶縁電線を得た（図１にその断面図をモデル的に示した）。 Using these raw materials, they were blended so as to have the blending amounts (parts by weight) shown in Tables 2 to 4, mixed together by a mixer, and a total of 19 types of thin-wall resistance of Examples 1 to 9 and Comparative Examples 1 to 10 Extrusion molding (heating temperature: 170-230 ° C) is adjusted according to the resin by obtaining vinyl chloride resin composition for covering worn wires and extruding each of them around a conductor of 7 strands (diameter 0.27 mm) ) To obtain nine types of insulated electric wires having a coating layer of 0.2 mm (FIG. 1 shows a cross-sectional view as a model).
また、ポリ塩化ビニルの重合度はＪＩＳ Ｋ７３６７−２に準拠して測定した値である。 The degree of polymerization of polyvinyl chloride is a value measured according to JIS K7367-2.
得られたこれら電線について、耐熱性を、電気用品『有機絶縁物類上限値試験』に準拠し、具体的にはギア式老化試験器で加熱履歴を加えた後に引張試験を行い、サンプルの伸びを測定して評価した。自動車用電線としては、１００℃以上での耐熱性が求められる。 About these obtained electric wires, heat resistance conforms to the electrical appliance "Organic insulators upper limit value test", specifically, a tensile test is performed after adding a heating history with a gear type aging tester, and the elongation of the sample is increased. Was measured and evaluated. As an electric wire for automobiles, heat resistance at 100 ° C. or higher is required.
また、耐寒性はＩＳＯ６７２２「低温特性」に準拠して評価した。自動車用電線としては、−４０℃以下での耐寒性が求められる。 The cold resistance was evaluated according to ISO 6722 “low temperature characteristics”. The electric wire for automobiles is required to have cold resistance at -40 ° C. or lower.
さらに、耐摩耗性についてもＩＳＯ６７２２「スクレーブ摩耗試験」に準拠して評価を行った。自動車用電線としては、３００回以上の耐摩耗性が求められる。これら評価結果を表２〜４に併せて記載した。 Furthermore, the wear resistance was also evaluated in accordance with ISO 6722 “Slave Wear Test”. As an electric wire for automobiles, wear resistance of 300 times or more is required. These evaluation results are listed in Tables 2 to 4.
表２〜４より、本発明の薄肉耐摩耗電線被覆用塩化ビニル樹脂組成物によれば耐摩耗性、耐寒性、および、耐熱性の全てを満足させることができることが判る。 From Tables 2 to 4, it can be seen that the vinyl chloride resin composition for coating thin-walled wear-resistant electric wires of the present invention can satisfy all of wear resistance, cold resistance, and heat resistance.
Ａ 本発明に係る薄肉体摩耗電線
１ 導体
２ 被覆層
A Thin-walled worn wire according to the present invention 1
Claims (2)
下記化学式（１）中Ｒ1、Ｒ2、および、Ｒ3で示される基の８０％以上が、炭素数が８以上の直鎖状アルキル基であるトリメリテート系可塑剤と、
下記化学式（２）中Ｒ4、および、Ｒ5で示される基の８０％以上が、炭素数が１０以上の直鎖状アルキル基であるフタレート系可塑剤とが、
計２０重量部以上４０重量部以下配合されており、かつ、
前記トリメリテート系可塑剤の配合量が、前記フタレート系可塑剤の配合量と前記トリメリテート系可塑剤の配合量との合計量の９０％以上９５％以下である
ことを特徴とする薄肉耐摩耗電線被覆用塩化ビニル樹脂組成物。
A trimellitate plasticizer in which 80% or more of the groups represented by R 1 , R 2 , and R 3 in the following chemical formula (1) are linear alkyl groups having 8 or more carbon atoms;
A phthalate plasticizer in which 80% or more of the groups represented by R 4 and R 5 in the following chemical formula (2) is a linear alkyl group having 10 or more carbon atoms,
A total of 20 to 40 parts by weight, and
The thin wear-resistant electric wire coating characterized in that the blending amount of the trimellitate plasticizer is 90% to 95% of the total amount of the blending amount of the phthalate plasticizer and the blending amount of the trimellitate plasticizer Vinyl chloride resin composition for use.
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| JP6689573B2 (en) * | 2015-03-13 | 2020-04-28 | 株式会社Adeka | Method for producing trimellitic acid triester plasticizer |
| JP6600276B2 (en) | 2016-05-20 | 2019-10-30 | 矢崎総業株式会社 | Resin composition and insulated wire using the same |
| KR102234147B1 (en) * | 2018-12-28 | 2021-03-31 | 엘에스전선 주식회사 | Resin composition for cable sheath and cable including the same |
| CN113555158B (en) * | 2021-07-20 | 2023-01-03 | 安徽徽宁电器仪表集团有限公司 | Wear-resistant flexible fireproof cable |
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