JP3308609B2 - Antistatic molded article and antistatic laminate - Google Patents
Antistatic molded article and antistatic laminateInfo
- Publication number
- JP3308609B2 JP3308609B2 JP28695292A JP28695292A JP3308609B2 JP 3308609 B2 JP3308609 B2 JP 3308609B2 JP 28695292 A JP28695292 A JP 28695292A JP 28695292 A JP28695292 A JP 28695292A JP 3308609 B2 JP3308609 B2 JP 3308609B2
- Authority
- JP
- Japan
- Prior art keywords
- antistatic
- vinyl chloride
- chloride resin
- chlorinated vinyl
- conductive
- 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
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical class ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 45
- 239000011347 resin Substances 0.000 claims description 30
- 229920005989 resin Polymers 0.000 claims description 30
- 239000011342 resin composition Substances 0.000 claims description 19
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 16
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 14
- 239000000460 chlorine Substances 0.000 claims description 11
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 11
- 229910001887 tin oxide Inorganic materials 0.000 claims description 11
- 238000006116 polymerization reaction Methods 0.000 claims description 8
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 6
- 229910052801 chlorine Inorganic materials 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 description 16
- 238000002156 mixing Methods 0.000 description 11
- 239000000049 pigment Substances 0.000 description 10
- 239000010410 layer Substances 0.000 description 8
- 239000012792 core layer Substances 0.000 description 7
- 239000003973 paint Substances 0.000 description 5
- 239000011247 coating layer Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 229910052787 antimony Inorganic materials 0.000 description 3
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 229910000410 antimony oxide Inorganic materials 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- HFACYLZERDEVSX-UHFFFAOYSA-N benzidine Chemical compound C1=CC(N)=CC=C1C1=CC=C(N)C=C1 HFACYLZERDEVSX-UHFFFAOYSA-N 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000011231 conductive filler Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229940049920 malate Drugs 0.000 description 1
- BJEPYKJPYRNKOW-UHFFFAOYSA-N malic acid Chemical compound OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、塩素化塩化ビニル樹脂
組成物を主体とする制電性成形体およびその制電性成形
体を制電層に利用した制電性積層体に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antistatic formed article mainly composed of a chlorinated vinyl chloride resin composition and an antistatic laminated body using the antistatic formed article as an antistatic layer.
【０００２】[0002]
【従来の技術】近時、電子機器分野における静電気障害
を防止することなどのために制電性シートが賞用されて
いる。中でも分子中の塩素（Ｃｌ）含有率が５４％前後
の一般的に入手容易で汎用的な塩化ビニル樹脂組成物を
主体とする制電性シートは、ベースとなる塩化ビニル樹
脂組成物が安価であるために経済性に優れ、しかも塩化
ビニル樹脂に特有の耐薬品性の良さを発揮させることが
できることなどのために今後も需要が増大する傾向にあ
る。2. Description of the Related Art In recent years, antistatic sheets have been awarded for preventing static electricity in electronic devices. Above all, an antistatic sheet mainly composed of a commonly available general-purpose vinyl chloride resin composition having a chlorine (Cl) content of about 54% in the molecule is a low-cost base vinyl chloride resin composition. For this reason, demand is apt to increase in the future because of being excellent in economy and being able to exhibit good chemical resistance characteristic of vinyl chloride resin.
【０００３】従来、塩化ビニル樹脂組成物を主体とする
制電性シートは、塩化ビニル樹脂組成物でなるベース基
材の表面に金属繊維などの導電性フィラーを含む塗料
（導電性塗料）の塗布層を形成したものであった。Conventionally, an antistatic sheet mainly comprising a vinyl chloride resin composition has been prepared by applying a paint (conductive paint) containing a conductive filler such as a metal fiber to the surface of a base material made of the vinyl chloride resin composition. A layer was formed.
【０００４】他方、最近では電子機器の外ケースなどを
種々の色に着色してカラー化（カラーリング）すること
が多々行われているけれども、それらには導電性塗料の
塗布層が形成される塩化ビニル樹脂のベースに顔料を混
入することによりベース基材を着色したものが知られて
いる。On the other hand, recently, the outer case of an electronic device or the like is often colored in various colors to form a color (coloring), but a coating layer of a conductive paint is formed thereon. It is known that a base material is colored by mixing a pigment into a vinyl chloride resin base.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上掲し
た制電性シートにおいては、導電性塗料を塗布するもの
であるため、塗布層が薄く、磨耗などによりその塗布層
がとれてしまうという問題を内在していた。また、ベー
ス基材に顔料を添加して着色してもベース基材の色が導
電性塗料の塗布層によって損なわれるので表面色を所望
の色に定めることが困難であった。However, in the above-described antistatic sheet, since the conductive paint is applied, the coating layer is thin and the coating layer is removed due to abrasion or the like. Was inherent. In addition, even if a pigment is added to the base substrate and colored, the color of the base substrate is impaired by the coating layer of the conductive paint, so that it has been difficult to set the surface color to a desired color.
【０００６】本発明は上述の問題に鑑み、塩素化塩化ビ
ニル樹脂組成物に針状導電性物質を混入することを基本
としてなされたものであり、耐摩耗性が良好で、塩化ビ
ニル樹脂組成物を使用したものに比べて性能が向上し、
また着色する場合においては顔料による着色が導電性物
質の色によってあまり損なわれずにそのまま表面に現れ
る制電性成形体を提供することを目的とする。SUMMARY OF THE INVENTION In view of the above problems, the present invention is based on mixing a needle-like conductive substance into a chlorinated vinyl chloride resin composition. The performance is improved compared to the one using
It is another object of the present invention to provide an antistatic molded article which, when colored, appears on the surface as it is without being impaired by the color of the conductive substance.
【０００７】[0007]
【課題を解決するための手段】請求項１の発明による制
電性成形体は、塩素化塩化ビニル樹脂組成物に、針状酸
化チタンの表面に酸化錫からなる導電層を形成した針状
導電性物質が混入されているものである。According to a first aspect of the present invention, there is provided an antistatic molded article comprising a chlorinated vinyl chloride resin composition having a conductive layer made of tin oxide formed on the surface of acicular titanium oxide. Substances are mixed.
【０００８】請求項２の発明による制電性積層体は、平
均重合度が１０００以下で塩素含有率が６６％以下であ
る塩素化塩化ビニル樹脂を用いた組成物に、針状酸化チ
タンの表面に酸化錫からなる導電層を形成した針状導電
性物質が混入されているものである。The antistatic laminate according to the second aspect of the present invention provides a composition using a chlorinated vinyl chloride resin having an average degree of polymerization of 1000 or less and a chlorine content of 66% or less, by adding a surface of acicular titanium oxide to the composition. And a needle-like conductive material having a conductive layer formed of tin oxide mixed therein.
【０００９】[0009]
【作用】請求項１の発明による制電性成形体によると、
塩素化塩化ビニル樹脂組成物に針状導電性物質が混入さ
れているので、たとえ表面が摩耗しても制電性能は何ら
変わることがなく、長期間に亘って安定した制電性が得
られる。また、針状導電性物質同志の連続性が針状部分
の絡み合いにより高まるので、その混入量が少量でも優
れた導電性が得られる。According to the antistatic molded article of the first aspect,
Since the chlorinated vinyl chloride resin composition contains a needle-shaped conductive substance, even if the surface is worn, the antistatic performance does not change at all, and stable antistatic properties can be obtained over a long period of time. . In addition, since the continuity of the needle-shaped conductive substances is increased by the entanglement of the needle-shaped portions, excellent conductivity can be obtained even with a small amount of mixing.
【００１０】請求項２の発明による制電性成形体による
と、特定の平均重合度と塩素含有率を有する塩素化塩化
ビニル樹脂を用いるので、更に良好な導電性を得ること
ができる。According to the antistatic molded article according to the second aspect of the present invention, since a chlorinated vinyl chloride resin having a specific average degree of polymerization and a specific chlorine content is used, further excellent conductivity can be obtained.
【００１１】本発明の制電性成形体の主体となる塩素化
塩化ビニル樹脂組成物は、塩素化塩化ビニル樹脂、安定
剤、滑剤、可塑剤などの添加物を所定の割合で一般的処
方に準じて配合したものであり、請求項１の発明による
制電性成形体はそのような塩素化塩化ビニル樹脂組成物
と導電性物質とが所定の割合で混入された成形物組成物
を板状などの種々の形状に成形したものである。The chlorinated vinyl chloride resin composition which is the main component of the antistatic molded article of the present invention is prepared by adding additives such as a chlorinated vinyl chloride resin, a stabilizer, a lubricant and a plasticizer to a general formulation at a predetermined ratio. The antistatic molded article according to the first aspect of the present invention is obtained by mixing such a chlorinated vinyl chloride resin composition and a conductive substance at a predetermined ratio into a plate-like form. And the like.
【００１２】塩素化塩化ビニル樹脂は塩化ビニル樹脂に
塩素を後添加したものであり、一般には塩素を６２〜６
８％含む樹脂であり、冒頭に説明した塩化ビニル樹脂に
比べると熱変形温度が高いものである。この塩素化塩化
ビニル樹脂に導電性物質を混合したものは、後述するよ
うに、塩化ビニル樹脂を用いたものに比べて１０2 〜１
０5 Ω程度表面抵抗が低下する。なぜ表面抵抗が低下す
るかの明確な解析はいまのところ得られていない。The chlorinated vinyl chloride resin is obtained by adding chlorine to the vinyl chloride resin.
It is a resin containing 8%, and has a higher heat distortion temperature than the vinyl chloride resin described at the beginning. Is a mixture of a conductive material to the chlorinated vinyl chloride resin, as described below, as compared with those using the vinyl chloride resin 10 2-1
0 about 5 Omega surface resistance decreases. A clear analysis of why the surface resistance decreases has not yet been obtained.
【００１３】導電性物質としては、白色である酸化チタ
ンの表面に酸化錫あるいはアンチモンをドーピングした
酸化錫でなる導電層を形成した略白色を呈するものを好
適に用いることができ、中でも針状、繊維状、棒状、そ
の他これらと類似形状の酸化チタンの表面に酸化錫ある
いはアンチモンをドーピングした酸化錫でなる導電層を
形成したものを用いると、塩素化塩化ビニル樹脂組成物
中に混入された針状などの導電性物質が絡まって個々の
導電性物質相互の連続性が高まる。このため、少量を混
入するだけでも優れた導電性が発揮され、また、混入量
を少し変えるだけで導電性を大幅に調節することが可能
である。さらに、酸化チタンが上記のような形状をなし
ているので、その導電性物質自体が補強繊維としての機
能を発揮する。上記針状酸化チタンとしては長さ１〜１
０μｍ、アスペクト比３以上の形状のものを用いること
が好ましい。酸化錫は酸化チタンに対し１〜５０重量
％、好ましくは５〜３０重量％の割合で酸化チタン表面
を覆うように用いられる。そして、酸化錫にアンチモン
をドーピングすることで導電性能を向上させ得るが、酸
化アンチモンとして３０重量％（酸化錫に対して）以下
にして酸化アンチモンによる過度の着色を防止する必要
がある。このような略白色の導電性物質は成形体組成物
中に１５％以上、好ましくは２０〜４０％含有させるこ
とで１０10Ω以下の制電性を付与することができる。[0013] As the conductive substance, a substance having a substantially white color obtained by forming a conductive layer made of tin oxide or tin oxide doped with antimony on the surface of titanium oxide, which is white, can be suitably used. When a conductive layer made of tin oxide doped with tin oxide or antimony is formed on the surface of titanium oxide having a fibrous, rod-like, or other similar shape, needles mixed in the chlorinated vinyl chloride resin composition are used. The conductive substances such as shapes are entangled to increase the continuity between the individual conductive substances. For this reason, even if a small amount is mixed, excellent conductivity is exhibited, and the conductivity can be largely adjusted by slightly changing the mixed amount. Further, since the titanium oxide has the above-described shape, the conductive substance itself functions as a reinforcing fiber. The needle-like titanium oxide has a length of 1 to 1
It is preferable to use one having a shape of 0 μm and an aspect ratio of 3 or more. Tin oxide is used to cover the titanium oxide surface at a rate of 1 to 50% by weight, preferably 5 to 30% by weight based on the titanium oxide. The conductive performance can be improved by doping tin oxide with antimony. However, it is necessary to make the antimony oxide less than 30% by weight (based on tin oxide) to prevent excessive coloring by antimony oxide. Such a substantially white conductive substance can impart an antistatic property of 10 10 Ω or less by containing 15% or more, preferably 20 to 40% in the molded product composition.
【００１４】上記の如き、塩素化塩化ビニル樹脂組成物
と導電性物質とを混合した成形体組成物は、カレンダー
ロールでシート状に成形した後に、熱圧プレスして制電
性平板に成形されたり、押出機にて制電性平板や断面丸
形あるいは繭形などの制電性溶接棒やＬ型の制電性アン
グルなどに成形される。As described above, the molded article composition obtained by mixing the chlorinated vinyl chloride resin composition and the conductive substance is formed into a sheet by a calender roll, and then hot-pressed to form an antistatic flat plate. Or formed into an antistatic welding rod having an antistatic flat plate, a round cross section or a cocoon shape, or an L-shaped antistatic angle by an extruder.
【００１５】また、上記の成形体組成物に各種顔料を添
加して着色制電性成形体を得ることもできる。本発明に
使用している導電性物質は白色の酸化チタンをベースに
しているために略白色を呈しており、顔料の添加による
各色相が成形体に現れて容易に着色でき、しかも導電性
物質の混入量を変えて電気抵抗値を変えても表面は同じ
色相にすることができる。顔料としては塩化ビニル樹脂
に一般に用いられているものを用いることができ、たと
えばアゾ系、ベンジジン系、スレン系、フタロシャーニ
ン系などが用いられる。このような顔料の配合量は所望
の色や濃度などに応じて種々変更される。Further, a colored antistatic molded article can be obtained by adding various pigments to the above-mentioned molded article composition. The conductive material used in the present invention is substantially white because it is based on white titanium oxide, and each hue due to the addition of the pigment appears on the molded body and can be easily colored. The surface can be made the same hue even if the electric resistance value is changed by changing the mixing amount of. As the pigment, those generally used for vinyl chloride resins can be used. For example, azo-based, benzidine-based, sulene-based and phthaloshanine-based pigments are used. The blending amount of such a pigment is variously changed according to a desired color and density.
【００１６】さらに、図１のように塩化ビニル樹脂製あ
るいは塩素化塩化ビニル樹脂製の厚さ２〜３０ｍｍ程度
の芯層１の両面に、厚さ０．１〜１．５ｍｍ程度の上記
制電性シート２，２を熱プレス、共押出しあるいはラミ
ネートなどにより積層一体化して制電性積層体にするこ
ともできる。芯層１としては塩素化塩化ビニル樹脂組成
物に用いたものと同じ組成物でもよいし、別の組成物で
もよい。特に、芯層１に特別な機能を持たせ制電性積層
体としての機能を向上させる組成物を用いることが好ま
しい。たとえば塩素化塩化ビニル樹脂組成物を用いて耐
熱性を向上させたり、塩化ビニル樹脂組成物を用いて安
価にしたり生産性を良くしたり、ＭＢＳなどの補強剤を
添加して耐衝撃性を向上させたり、充填剤を添加して剛
性を向上させたりすることができ、このように芯層１に
より機能を別途付加することができる。制電性成形体が
着色されていれば、芯層１にも同様の顔料を添加して着
色制電性シート２と略同じ色相に調色して端面や断面を
見ただけでは区別がつきにくいようにしておくことが好
ましい。Further, as shown in FIG. 1, on both sides of a core layer 1 made of vinyl chloride resin or chlorinated vinyl chloride resin and having a thickness of about 2 to 30 mm, the above-described antistatic layer having a thickness of about 0.1 to 1.5 mm is provided. The conductive sheets 2 and 2 may be laminated and integrated by hot pressing, coextrusion, lamination, or the like to form an antistatic laminate. The core layer 1 may be the same composition as that used for the chlorinated vinyl chloride resin composition, or may be another composition. In particular, it is preferable to use a composition that gives the core layer 1 a special function and improves the function as an antistatic laminate. For example, a chlorinated vinyl chloride resin composition is used to improve heat resistance, a vinyl chloride resin composition is used to reduce costs and improve productivity, and is added with a reinforcing agent such as MBS to improve impact resistance. And the rigidity can be improved by adding a filler, and thus the core layer 1 can separately add functions. If the antistatic molded article is colored, the same pigment is added to the core layer 1 and the color is adjusted to substantially the same hue as that of the colored antistatic sheet 2, so that the end face and the cross section can be distinguished from each other. It is preferable to make it difficult.
【００１７】[0017]
【実施例】次に本発明の制電性成形体が板状である場合
の実施例を説明する。EXAMPLES Next, examples in which the antistatic molded body of the present invention is in the form of a plate will be described.
【００１８】塩素化塩化ビニル樹脂（Ｃ−ＰＶＣ）１０
０部に対して錫系安定剤（マレート錫）３部、滑剤０．
５部からなる塩素化塩化ビニル樹脂組成物に、前述の針
状導電性酸化チタンを混合し、この成形体組成物を１７
０℃でロール混錬し、混錬後にプレスすることによって
厚み１ｍｍのシートを成形した。Chlorinated vinyl chloride resin (C-PVC) 10
3 parts of tin-based stabilizer (malate tin) and 0 parts of lubricant
The above-mentioned acicular conductive titanium oxide was mixed with 5 parts of a chlorinated vinyl chloride resin composition.
Roll kneading was performed at 0 ° C., and a sheet having a thickness of 1 mm was formed by pressing after kneading.
【００１９】塩素化塩化ビニル樹脂には、平均重合度
（バーＰ：以下、Ｐと記す）が５００（Ｃｌ含有率６３
％または６８％），１０００（Ｃｌ含有率６４％）のも
のを使用し、それぞれの成形体組成物中に２０〜３０％
の範囲で所定量の上記針状導電性酸化チタンを混入して
作製したシート状の各試料（発明品）の表面抵抗値を三
菱油化製の「ハイレスター」を用いて測定した。表１に
その結果を示す。なお、表１には塩化ビニル樹脂組成物
に上記針状導電性酸化チタンを混入して作製したシート
状の各試料（比較例）の表面抵抗値を参考値として示
す。The chlorinated vinyl chloride resin has an average degree of polymerization (bar P: hereinafter referred to as P) of 500 (Cl content 63
% Or 68%), 1000 (Cl content 64%), and 20 to 30% in each molded product composition.
The surface resistance value of each sheet-shaped sample (invention) prepared by mixing a predetermined amount of the above-mentioned needle-shaped conductive titanium oxide in the range described above was measured using "HIRESTER" manufactured by Mitsubishi Yuka. Table 1 shows the results. Table 1 shows, as reference values, the surface resistance of each sheet-shaped sample (comparative example) produced by mixing the acicular conductive titanium oxide into the vinyl chloride resin composition.
【００２０】[0020]
【表１】 [Table 1]
【００２１】表１より、本発明の塩素化塩化ビニル樹脂
を用いた制電性シートは同じ量の針状導電性酸化チタン
を塩化ビニル樹脂に配合した比較例に比べてその表面抵
抗値がすべて小さくなっており、制電性能を良好に発揮
し得ることがわかる。したがって、ベース樹脂としては
塩素化塩化ビニル樹脂を用いる方が良好な表面抵抗値を
得ることが理解される。また、同じ表面抵抗値を得るに
は本発明制電性シートへの針状導電性酸化チタンの配合
量を少なくすることができ、安価に製造することができ
る。さらに、試料１，２と５，６とからわかるように、
塩素化塩化ビニル樹脂であっても、平均重合度Ｐが低い
と１０3 〜１０5 Ωも表面抵抗の低下があり、Ｐの小さ
い方が好ましいことがわかる。さらにまた、試料１，２
と３，４とからわかるように、Ｃｌ含有量の少ない塩素
化塩化ビニル樹脂を用いた方が表面抵抗値が低下してい
ることがわかる。このことより、塩素化塩化ビニル樹脂
としては重合度が１０００より低く、Ｃｌ含有率が６６
％より小さい方が好ましい。なお、上記実施例は同一温
度条件で制電性シートを作製したものであり、ＣＬ含有
率が高くなれば成形温度を高くすることが一般的に行わ
れており、試料３，４の成形温度を高くすれば表面抵抗
は低下する可能性もある。From Table 1, it can be seen that the antistatic sheet using the chlorinated vinyl chloride resin of the present invention has a higher surface resistance than the comparative example in which the same amount of acicular conductive titanium oxide is blended with the vinyl chloride resin. It turns out that it is small, and the antistatic performance can be exhibited well. Therefore, it is understood that a better surface resistance value is obtained by using a chlorinated vinyl chloride resin as the base resin. Further, in order to obtain the same surface resistance value, the compounding amount of the acicular conductive titanium oxide to the antistatic sheet of the present invention can be reduced, and the sheet can be manufactured at low cost. Furthermore, as can be seen from Samples 1, 2, 5 and 6,
Even with a chlorinated vinyl chloride resin, if the average degree of polymerization P is low, the surface resistance decreases by as much as 10 3 to 10 5 Ω, indicating that a smaller P is preferable. Furthermore, samples 1 and 2
As can be seen from FIGS. 3 and 4, it is understood that the surface resistance is lower when the chlorinated vinyl chloride resin having a smaller Cl content is used. This indicates that the chlorinated vinyl chloride resin has a polymerization degree lower than 1000 and a Cl content of 66.
% Is preferable. In the above example, an antistatic sheet was prepared under the same temperature conditions. In general, the molding temperature was increased as the CL content increased. If is increased, the surface resistance may decrease.
【００２２】ところで、一般に塵芥の付着を抑制するの
に十分な制電性を発揮し得る表面抵抗値として望ましい
値は１０10Ω以下、好ましくは１０8 Ω以下であるとい
われている。このことより制電性シートに要求される望
ましい表面抵抗値は１０10Ω以下であり、表１より試料
１，２，４，６のものが制電性シートとしての用途によ
り好ましく適合する。特に重合度の低い試料１，２は１
０6 Ω以下であり、より好ましく用いられる。したがっ
て、導電性物質も２０％以上混合することが好ましい。Incidentally, it is generally said that a desirable value of a surface resistance value capable of exhibiting a sufficient antistatic property to suppress adhesion of dust is 10 10 Ω or less, preferably 10 8 Ω or less. For this reason, the desirable surface resistance required for the antistatic sheet is 10 10 Ω or less, and from Table 1, the samples 1, 2, 4, and 6 are more suitable for use as the antistatic sheet. In particular, Samples 1 and 2 having a low polymerization degree are 1
0 6 Omega or less, more preferably used. Therefore, it is preferable that the conductive material is also mixed at 20% or more.
【００２３】次に、試料番号６の成形体組成物に表２で
示す配合割合の各顔料を配合し、０．５ｍｍのカレンダ
ーシートにした後、熱圧プレスで１ｍｍのシートを成形
し、各試料の表面抵抗の測定と色相の観察を行った。そ
の結果を表２に示す。Next, each pigment having the compounding ratio shown in Table 2 was blended with the molded body composition of Sample No. 6, and a 0.5 mm calender sheet was formed. Then, a 1 mm sheet was formed by a hot press. The surface resistance of the sample was measured and the hue was observed. Table 2 shows the results.
【００２４】[0024]
【表２】 [Table 2]
【００２５】表２より、各試料の表面抵抗は１０7 Ωと
なり、制電性を有していることがわかる。また、色相も
顔料を変えることにより変化しており、着色された制電
性板が容易に得られることがわかる。From Table 2, it can be seen that the surface resistance of each sample was 10 7 Ω, indicating that it had antistatic properties. Further, the hue was also changed by changing the pigment, and it was found that a colored antistatic plate was easily obtained.
【００２６】さらに、図１に示すような積層体を作成す
るため、まず塩素化塩化ビニル樹脂組成物と試料番号６
の成形体組成物を各々０．５ｍｍのカレンダーシートと
なし、制電層を厚さ１ｍｍ、芯層を厚さ３ｍｍになるよ
うに各シートを重ね合わせて厚さ５ｍｍの積層体を熱圧
プレスで作成した。その表面抵抗を測定すると、１０7
Ωの抵抗を示し、制電性を有していることがわかった。
また、その熱変形温度を測定すると、９７℃となり、耐
熱性を有していることもわかった。Further, in order to form a laminate as shown in FIG. 1, first, a chlorinated vinyl chloride resin composition and sample No. 6 were prepared.
Each of the molded product compositions is formed into a 0.5 mm calender sheet, and the respective sheets are stacked so that the antistatic layer has a thickness of 1 mm and the core layer has a thickness of 3 mm. Created in. When the surface resistance is measured, 10 7
It showed a resistance of Ω and was found to have antistatic properties.
Further, when the heat distortion temperature was measured, it was 97 ° C., and it was found that the material had heat resistance.
【００２７】[0027]
【発明の効果】請求項１の発明の制電性成形体は、塩素
化塩化ビニル樹脂に針状導電性物質を混入したため、成
形体表面が摩耗しても表面抵抗は何ら変わることがな
く、また少量の混入でも良好な導電性が発揮され、安定
した制電性が得られる。また、樹脂として塩素化塩化ビ
ニル樹脂を使用しているので、塩化ビニル樹脂に比べて
低い表面抵抗値を得ることができ、少ない量の針状導電
性物質の配合で目的の表面抵抗値を得ることができる。According to the antistatic molded article of the first aspect of the present invention, since the acicular conductive substance is mixed into the chlorinated vinyl chloride resin, the surface resistance does not change at all even if the molded article surface is worn. In addition, even if a small amount is mixed, good conductivity is exhibited, and stable antistatic property is obtained. In addition, since a chlorinated vinyl chloride resin is used as the resin, a lower surface resistance value can be obtained as compared with the vinyl chloride resin, and a desired surface resistance value can be obtained by blending a small amount of the acicular conductive substance. be able to.
【００２８】請求項２の発明の制電性成形体は、塩素化
塩化ビニル樹脂として特定の平均重合度と塩素含有率を
持つ樹脂を採用することで、さらに良好な制電性が得ら
れ、少量の混入量で目的とする表面抵抗値をもつ成形体
を安定して得ることができる。In the antistatic molded article according to the second aspect of the present invention, by adopting a resin having a specific average degree of polymerization and a specific chlorine content as the chlorinated vinyl chloride resin, further excellent antistatic properties can be obtained. It is possible to stably obtain a molded article having a desired surface resistance value with a small amount of mixing.
【図１】請求項２の発明の実施例による制電性積層体を
示す断面図である。FIG. 1 is a sectional view showing an antistatic laminate according to an embodiment of the present invention.
１ 芯層 ２ 制電性シート 1 core layer 2 antistatic sheet
Claims (2)
化チタンの表面に酸化錫からなる導電層を形成した針状
導電性物質が混入されていることを特徴とする制電性成
形体。1. An antistatic molded article characterized in that a needle-like conductive material having a conductive layer made of tin oxide formed on the surface of needle-like titanium oxide is mixed in a chlorinated vinyl chloride resin composition. .
が６６％以下である塩素化塩化ビニル樹脂を用いた組成
物に、針状酸化チタンの表面に酸化錫からなる導電層を
形成した針状導電性物質が混入されていることを特徴と
する制電性成形体。2. A needle obtained by forming a conductive layer of tin oxide on the surface of acicular titanium oxide in a composition using a chlorinated vinyl chloride resin having an average degree of polymerization of 1000 or less and a chlorine content of 66% or less. An antistatic molded body characterized in that a conductive material is mixed therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28695292A JP3308609B2 (en) | 1992-09-30 | 1992-09-30 | Antistatic molded article and antistatic laminate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28695292A JP3308609B2 (en) | 1992-09-30 | 1992-09-30 | Antistatic molded article and antistatic laminate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06107890A JPH06107890A (en) | 1994-04-19 |
| JP3308609B2 true JP3308609B2 (en) | 2002-07-29 |
Family
ID=17711083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28695292A Expired - Fee Related JP3308609B2 (en) | 1992-09-30 | 1992-09-30 | Antistatic molded article and antistatic laminate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3308609B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MY136978A (en) * | 1998-06-22 | 2008-12-31 | Toyo Boseki | Highly antistatic laminate |
| JP4693023B2 (en) * | 2000-09-29 | 2011-06-01 | タキロン株式会社 | Antistatic vinyl chloride resin molded product with transparency and flame retardancy |
| CN105694317B (en) * | 2016-04-26 | 2018-03-27 | 国网山东省电力公司诸城市供电公司 | One kind is opposed electricity-stealing instrument antistatic internal partition and preparation method thereof |
-
1992
- 1992-09-30 JP JP28695292A patent/JP3308609B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06107890A (en) | 1994-04-19 |
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