JPS6172061A - Resin composition - Google Patents

Abstract

PURPOSE:To provide a resin composition capable of keeping excellent antistatic property even in low-humidity environment, and resistant to the lowering of the antistatic property by washing, by adding specific amounts of an alkali metal salt and a polar aprotic solvent to a thermoplastic resin. CONSTITUTION:100 pts. (wt.) of a thermoplastic resin (e.g. acrylic resin, polycar bonate resin, etc.) is compounded with (A) 0.1-30pts. of an alkali metal salt (e.g. lithium perchlorate, potassium perchlorate, etc.) and (B) 1-30pts. of a polar aprotic solvent (e.g. propylene carbonate, ethylene carbonate, etc.)

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発Ｉ：！Ｉ：Ｉは帯電防止効果金有する叫脂組成物
に関するものである。[Detailed description of the invention] [Industrial application field] This invention I:! I:I relates to a glaucoma composition having an antistatic effect.

［従来の技術〕 一般Ｖこプラスチックげ電気抵抗が大きく、＃最等によ
って容易に帯電しやすぐ、ゴミやホコリ金吸引して外観
を損ねたり、電気・電子１戊器の誤動作や故障などの原
因１／（なっている。[Prior art] General V plastics have high electrical resistance and can easily become charged and attract dust and dirt, damaging the appearance and causing malfunctions and breakdowns in electrical and electronic devices. Cause 1/(has become.

このような帯電しやすいプラスチックの蛍戒性？低下さ
せるためには、蛍厄防止剤全塗布したり内部練り込みで
行なうことが知らｈでいる。塗布用の帯電防止剤として
は通常界面活性剤やシリコン系化合物か用いられる。Is this kind of plastic easily charged with electricity? It is known that in order to reduce this, it is possible to apply an anti-fluorescent agent to the entire surface or to mix it into the interior. As the antistatic agent for coating, a surfactant or a silicone compound is usually used.

〔発（７）が解決しようとつる問題点〕し刀為し界［…
活性剤は洗浄によって脱落しやすぐ長期間の帝シ防止効
呆は期待Ｌ！ＩｌＩい。シリコン系化合物げかなり良好
７ｘ帯゛ル防止効果か期待でＡるが、塗布条件の管理か
難しく、作業能高も悪く、コスト的に不利な面がある。[The problem that Hatsu (7) is trying to solve] and the sword fighting world [...
The active agent falls off when washed and is expected to have long-term anti-seizure effect! IlI. Silicon-based compounds have a fairly good 7x band prevention effect and are expected to be A, but they are difficult to control coating conditions, have poor workability, and are disadvantageous in terms of cost.

帯電防止剤の内部裸り込み法は、帯電防止剤か表面にし
み出すことにより帝′醒防止効果に発埃するため、水洗
や摩寿により効果は激職し、帯電防止効果の回復ＶＣは
長時１川を要する。In the method of internally soaking the antistatic agent, the antistatic agent oozes out onto the surface and generates dust, so washing with water or washing it with water will greatly reduce the effect, and the recovery of the antistatic effect will be difficult. It takes a long time and one river.

１ｋ、上記のいずれの方法とも、空気中の水分全表向に
吸着することにより、樹脂表面のイオン云導性を増大さ
せて帯電防止効果を発均させるーものである！こめ、水
の存在は不可欠であり、低湿朋の環境においては帯電防
止効果か小さくなる専の問題点か１５つだ。1k, all of the above methods increase the ionic conductivity of the resin surface by adsorbing the moisture in the air on the entire surface, and even out the antistatic effect! Therefore, the presence of water is essential, and in a low-humidity environment, the antistatic effect is reduced, which is a major problem.

この発明は上記した従来のものの問題点を商去するため
になさねたもので、低湿度の環視中においても良好な帯
電防止効果全保持し、洗浄によって帯電防止性が低ドし
ないＷ脂組成物を提供することを目的としている。This invention was made in order to eliminate the above-mentioned problems of the conventional products, and it has a W resin composition that retains all good antistatic effects even during low-humidity monitoring, and that does not lose its antistatic properties when washed. The purpose is to provide something.

〔間捌点を解決するための手段〕[Means for resolving the gap]

この発明の樹脂組成物け、熱可塑性樹脂にアルカリ金属
塩と極性非プロトン溶媒を含ませたものである。The resin composition of this invention is a thermoplastic resin containing an alkali metal salt and a polar aprotic solvent.

［作用〕 この発明の側脂ｆ、１１成物において、アルカリ金属塩
ぽ樹脂組成物中に溶解してイオン解離しており。[Function] In the side fat f and 11 compositions of the present invention, they are dissolved in the alkali metal salt resin composition and ionically dissociated.

覗界が印加さｈハば、このイオンが樹脂組成物中を移Ｉ
ＩＬ１１シて厄荷を中和しようとすることにより帯電防
止効果を示す。極性非プロトン溶媒げ非水下に２いてイ
オン解離を促進する。この促進作用により帯電防止効果
は充分に発揮される。なお、熱可塑性樹脂としてアクリ
ル樹脂を用いねば、アルカリ金ｋＪ４塩および車性非プ
ロトンＭ媒げアクリル系樹脂に対し良好な相溶性かあり
、分子分散またけそ稍に近い形で溶解しているため、ア
クリル系樹脂の反好な透明性を保持することかでたる。When a viewing field is applied, these ions migrate through the resin composition.
IL11 shows an antistatic effect by trying to neutralize harmful loads. A polar aprotic solvent is used under water to promote ionic dissociation. Due to this accelerating action, the antistatic effect is fully exhibited. In addition, if an acrylic resin is used as the thermoplastic resin, it has good compatibility with the alkali gold KJ4 salt and the car-based aproton M-carrying acrylic resin, and is dissolved in a form close to molecular dispersion or sparse. The main reason for this is that it maintains the transparency that acrylic resin has.

〔夷箔例〕[Example of Eibaku]

熱可塑性樹脂に含プハるアルカリ金慎塩及び極性非プロ
トン溶媒の緘にげ適当な範囲がある。熱可塑性樹脂１０
０皇竹部に対して、アルカリ８−属塩の配合割合は０．
１軍量部から３０　ＪＩ量部の範囲が望ましい。アルカ
リ金属塩か０．１　ｉ　識部未満でげ専電性の同上げ小
さく、帯電防止効果か少ない。There is a suitable range of alkali metal salts and polar aprotic solvents contained in thermoplastic resins. Thermoplastic resin 10
The blending ratio of alkali 8-group salt to 0 Kotake part is 0.
A range of 1 military part to 30 JI parts is desirable. Alkali metal salts are less than 0.1 i, have a small electrical property, and have little antistatic effect.

また、アルカリ金属塩か３ＯＮ量部金越えると結晶が析
出しやすぐなり、樹脂組成物けもろぐなる。Further, if the amount of the alkali metal salt exceeds 3ON, crystals will precipitate and the resin composition will become sluggish.

極性非プロトン溶媒の配合割合げ１軍事部から３０７Ｉ
ｒ惜部が電せしい。極性非プロトン溶媒が１軍量部未調
ではイオン解離の促進効果は非常に少なく、３０車景部
′に＠オると樹脂組成物の熱変形温度か著しく低下し、
通常のプラスチック成形材料としての価値が少なくなる
。Blending ratio of polar aprotic solvent 1 307I from the Ministry of Military Affairs
The regrettable part seems to be electric. If the amount of polar aprotic solvent is less than 1 part, the effect of promoting ion dissociation is very small, and if it exceeds 30 parts, the heat distortion temperature of the resin composition will drop significantly.
It has less value as a normal plastic molding material.

この発明に係わる熱可塑性樹脂としてけ熱斐形ｍ呟が常
諷エリ蘭（、ｖＪ７常の成形、例えば射出底形、押出成
形や圧縮成形の可能な樹脂を用いることがで致る。例え
ばアクリル系樹脂、ポリカーボネート側脂、アクリロニ
トリルーブタジエンースチレ／樹脂、アクリロニトリル
−スチレン樹脂。As the thermoplastic resin according to this invention, resins that can be molded in a conventional manner, such as injection molding, extrusion molding, or compression molding, can be used. For example, acrylic resin. system resin, polycarbonate side fat, acrylonitrile-butadiene-styrene/resin, acrylonitrile-styrene resin.

スチレン樹脂、ポリアミド糸樹脂、ポリエステル系樹脂
等か用いＩ−１ねるが、アルカリ金属塩と極性非プロト
ン溶媒に相溶性の良い樹脂であｈば、こｆ１以外の熱可
塑性樹脂か用いらねゐことげ言う寸でもない。Styrene resin, polyamide thread resin, polyester resin, etc. can be used for I-1, but thermoplastic resins other than F1 can be used as long as the resin has good compatibility with alkali metal salts and polar aprotic solvents. It's not even worth mentioning.

この発明に係わるアルカリ金属塩げ公矧のものを１釉以
上用いることがで話る。例λば過塩諧酸リチウム、過塩
素酸カリウム、過塩素酸ナトリウム、ａ塩化リチウム、
チオシアン−９リチウム。It is possible to use one or more glazes made of alkali metal salts according to the present invention. Examples: Lithium perchlorate, potassium perchlorate, sodium perchlorate, lithium chloride,
Thiocyan-9 lithium.

チオシアン酸カリウム、チオシアン酸ナトリウム。Potassium thiocyanate, sodium thiocyanate.

チオシアン峻セシウム、ホウフッ化リチウム、ホウフッ
化ナトリウム、フッ化リチウム、塩化リチウム、美化リ
チウム、ヨウ化リチウム、ヨウ化カリウム、ヨウ化ナト
リウム等が用いらハる。Cesium thiocyanide, lithium borofluoride, sodium borofluoride, lithium fluoride, lithium chloride, lithium chloride, lithium iodide, potassium iodide, sodium iodide, etc. are used.

極性非プロトン溶媒として汀、アルカリ金属塩を溶解し
、熱可塑性樹脂と相溶性のあるものを１種以上用いるこ
とかで缶心。例えば炭酸プロピレン、炭酸エチレン、ジ
メチルホルムアミド、ジエチルホルムアミド、ジメチル
アセトアミド、Ｎ−メチルピロリドン、テトラメチルウ
レア、ヘキサメチルホスホルアミド、ジメチルスルホキ
シド。The can core can be obtained by dissolving alkali metal salt as a polar aprotic solvent and using at least one solvent that is compatible with the thermoplastic resin. For example, propylene carbonate, ethylene carbonate, dimethylformamide, diethylformamide, dimethylacetamide, N-methylpyrrolidone, tetramethylurea, hexamethylphosphoramide, dimethylsulfoxide.

アセトニトリル、スルホラン等か用いらｈる。Use acetonitrile, sulfolane, etc.

この発明の帯電防止性に潰れた樹脂組成物は射出成形法
、押出成形法、圧縮成形法あるいは真空成形法等の通常
の成形方法を用いて成形加工することがで傘る。The antistatic resin composition of the present invention can be molded using a conventional molding method such as injection molding, extrusion molding, compression molding, or vacuum molding.

次にこの発明の樹脂組成物を夷角例にて具体的に説明す
る。Next, the resin composition of the present invention will be specifically explained using an example of Ei angle.

実癩例１ 炭酸プロピレン７０電量部に過塙訴酸リチウム（無水）
３０重緻部を８０℃で攪拌りながら溶解させ透明な溶液
を得た。熱可塑性樹脂としてアクリル系樹脂であるアク
リベットＳ（三菱レイヨン）ヲ用い、この樹脂１００軍
量部に回連のｆ？ｊ液１１Ｎｉｔ部を押出機を用いて１
８０°Ｃで混練し、ペレタイザーによｈベレットとした
。このペレットを射出成形機を用いて厚さ約３ｍｍの板
状の試験片を作成し、スタチツクオネストメーターを用
いて＠電圧の半減期を測定し、帯電防止性を判ボした。Leprosy case 1 70 parts of propylene carbonate plus lithium oxide (anhydrous)
A clear solution was obtained by dissolving 30 parts of the solution while stirring at 80°C. Acryvet S (Mitsubishi Rayon), an acrylic resin, is used as the thermoplastic resin, and 100 parts of this resin is mixed with f? Using an extruder, 11Nit part of liquid J was added to 1
The mixture was kneaded at 80°C and made into pellets using a pelletizer. A plate-shaped test piece with a thickness of about 3 mm was prepared from the pellet using an injection molding machine, and the half-life of the voltage was measured using a static honest meter to determine the antistatic property.

結果を表１に示した。The results are shown in Table 1.

なお、スタテツクオ不ストメーターの測定条件は次の通
りである。The measurement conditions of the static quotient are as follows.

印加電圧　　　　１００００Ｖ 試料回転数　　　１３０ｏｒｐｍ 測定湿度　　　　５０％ＲＨ 測定副産　　　　３０”Ｃ 印加時間　　　　１．０分 耐洗浄性は試料表［ｆｉを中性況剤水溶液で充分洗浄し
た後、イオン交換水で充分洗浄し、その後室温で１週間
デシケータ中で乾燥した試料をスタチツクオネストメー
タを用いて帯電圧の半減期を測定した。結果と表１に示
した。Applied voltage: 10,000 V Sample rotation speed: 130 orpm Measurement humidity: 50% RH Measurement by-product: 30"C Application time: 1.0 minutes After that, the sample was dried in a desiccator at room temperature for one week, and the half-life of the charged voltage was measured using a static honest meter.The results are shown in Table 1.

透Ｆ＋Ｊ性は光礫透過率によって評価した。測定方法け
ＡＳＴＭ　ＤＩＯ０３の方法を用い之。結果を表１に示
した。Transparency F+J property was evaluated by optical gravel transmittance. The measurement method was ASTM DIO03. The results are shown in Table 1.

実権例２ 実施例１と同様に炭酸プロピレン９５ｍＦ鐘部、過塩素
酸リチウム（無水）５］ｉｆ量部の溶液を調製し九〇ア
クリル系樹脂であるアクリペラＩ−Ｖ）］　（三菱レイ
ヨン製）１００重量部にこの溶液１１重槍部を実症例１
と同様に混合し、試験片を作成した。帯電防止性、耐洗
浄性および透明性金実施列１と同様に評価した。結果を
表１に示した。Practical Example 2 In the same manner as in Example 1, a solution containing 95 mF of propylene carbonate and 5 parts of lithium perchlorate (anhydrous) was prepared and 90 parts of acrylic resin Acrypera IV) (manufactured by Mitsubishi Rayon) was prepared. Add 11 parts of this solution to 100 parts by weight for actual case 1.
A test piece was prepared by mixing in the same manner as above. Antistatic properties, wash resistance, and transparency were evaluated in the same manner as in Gold Example 1. The results are shown in Table 1.

実権例３ 実権例１と同様に炭酸プロピレン６０重を部、過塩素酸
リチウム４０Ｍ量部の浴′ｇ！Ｌを調製した。この浴液
１５重量部をアクリベットｓ　１００重量部にニーダ−
を用いて混練し、圧縮成形により２ｍｍ厚の板状の試験
片を作成した。帯電防止性、耐洗浄性２よび透明性を実
権例１と同様に評価した。結果を表１に示した。Practical Example 3 As in Practical Example 1, a bath containing 60 parts by weight of propylene carbonate and 40 M parts of lithium perchlorate was prepared. L was prepared. 15 parts by weight of this bath liquid was kneaded into 100 parts by weight of Acrybet S.
A 2 mm thick plate-shaped test piece was prepared by compression molding. Antistatic properties, wash resistance 2, and transparency were evaluated in the same manner as in Actual Example 1. The results are shown in Table 1.

実権例４ 実加例３と同じ過塩素酸リチウムの炭酸プロピレンｄ／
［２３重量部とアクリベット６１００Ｍ量部と実権例３
と同様に混線し試験片を作成した。帝亀防止性、耐洗浄
性、透明性を実権例１と同様に評価した。結果を表１に
示した。Practical example 4 Propylene carbonate d/ of lithium perchlorate same as practical example 3
[23 parts by weight and 6100M parts by weight of Acrybet and actual example 3
A test piece was prepared by mixing wires in the same manner as above. The anti-glare properties, wash resistance, and transparency were evaluated in the same manner as in Example 1. The results are shown in Table 1.

比較例１ アクリベット日に炭酸プロピレンおよび過塩素管リチウ
ム（無水）を加えることなく実権例１と同様な方法で試
験片を作成し帯電防止性、透明性を評価した。結果を表
１に示した。Comparative Example 1 A test piece was prepared in the same manner as in Practical Example 1 without adding propylene carbonate and lithium perchlorate (anhydrous) to Acribet, and the antistatic properties and transparency were evaluated. The results are shown in Table 1.

比較例２ アクリベットθ１００　ｌｉ（置部、炭酸プロピレン１
゜重曖部の組成の試験片を実権例１と同様な方法で作成
し帯電防止性、透明性全評価した。結果を表１に示した
。Comparative Example 2 Acrivet θ100 li (Okibe, propylene carbonate 1
A test piece having the composition of the heavy ambiguous area was prepared in the same manner as in Practical Example 1, and the antistatic property and transparency were completely evaluated. The results are shown in Table 1.

比較例３ アクリベット５ｌｏｏ］Ｆ量部、過塩素俊リチウム（無
水）５重量部の組成の試験片全実施例１と１同様な方法
で作成し帯電防止性、透明性全評価した。Comparative Example 3 A test piece having a composition of 5 parts by weight of Acrybet 5loo] F and 5 parts by weight of lithium perchlorate (anhydrous) was prepared in the same manner as in Examples 1 and 1, and the antistatic properties and transparency were evaluated.

結果を表１に示した。The results are shown in Table 1.

表　　１ 実施例５ 炭暇エチレン６０車量部に過塩素管リチウム（無水）４
０車量部を約８０°Ｃで攪拌しなから溶解させ逍＃：！
ＡなｆＢ液を得た。この溶液１６　ｇ蓋部をアクリベッ
トｓ　１００　Ｍ置部にニーダーを用いて混練し、圧憚
成形により２ｍｍ厚の試験片を作成した。実抱例１と同
様に帯４防止性、耐洗浄性、透明性全評価した。結果・
ｆ表２に示した。Table 1 Example 5 Perchlorine tube lithium (anhydrous) 4 parts per 60 car parts of ethylene with charcoal
Dissolve 0 parts by stirring at approximately 80°C.
A fB solution was obtained. 16 g of this solution was kneaded in a lid part of Acryvet S 100 M using a kneader, and a test piece with a thickness of 2 mm was prepared by compression molding. In the same manner as Example 1, the band 4 prevention property, wash resistance, and transparency were all evaluated. result·
f is shown in Table 2.

Ｊｉ＠Ｗす６ 実施例５と同一の浴液２３恵菫部とアクリベットθ１０
０　ｊｌｊ敏部の組成の試験片と実施例５と１間様に作
成し、帯電防止性、耐洗浄性、透（７）ヰを評価した。Ji@Wsu 6 Same bath liquid 23 as in Example 5 Sumirebe and Acrybet θ10
A test piece having a composition of 0.0 jlj and Example 5 was prepared in the same manner as that of Example 5, and the antistatic properties, wash resistance, and transparency (7) were evaluated.

結果を表２に示した。The results are shown in Table 2.

表　２ 表１及び表２に示すように、この発明の実癲例によるも
のけ、比較例に比べて低湿度ｖｃおいても大巾に帝戒防
止効果か向上しており、洗浄してもその効果は低下しな
い。また、光線透過量も職安することなく、良好な透明
性を保持している。Table 2 As shown in Tables 1 and 2, the Mononoke according to the practical example of the present invention has a significantly improved anti-imperial effect even in low humidity VC compared to the comparative example, and even after washing. Its effectiveness does not decrease. In addition, the amount of light transmitted does not decrease the quality of work, and it maintains good transparency.

〔発（７）の効果〕 この発明は以上説明したとおり、熱可塑性樹脂にアルカ
リ金属塩と極性非プロトン溶媒を営ませることにより、
低湿度の環境中においても艮好な帯戒防出効果を保ＭＬ
、洗浄によっても帯電防止性が低下しなＡ樹脂組成物か
寿ら苅る効果がある。[Effect of (7)] As explained above, this invention provides a thermoplastic resin with an alkali metal salt and a polar aprotic solvent.
ML maintains excellent anti-seizure effect even in low-humidity environments.
The A resin composition has antistatic properties that do not deteriorate even after washing.

なお、熱可塑性樹脂としてアクリル系樹脂を用いｈばア
クリル系樹脂の良好な透明性を保持する饗脂組成物か得
られる。Note that if an acrylic resin is used as the thermoplastic resin, a resin composition that maintains the good transparency of the acrylic resin can be obtained.

Claims (3)

【特許請求の範囲】[Claims] （１）熱可塑性樹脂にアルカリ金属塩と極性非プロトン
溶媒を含ませた樹脂組成物。(1) A resin composition in which a thermoplastic resin contains an alkali metal salt and a polar aprotic solvent. （２）熱可塑性樹脂１００重量部にアルカリ金属塩０．
１〜３０重量部と極性非プロトン溶媒１〜３０重量部を
含ませた特許請求の範囲第１項記載の樹脂組成物。(2) 0.0% alkali metal salt per 100 parts by weight of thermoplastic resin.
The resin composition according to claim 1, which contains 1 to 30 parts by weight and 1 to 30 parts by weight of a polar aprotic solvent. （３）熱可塑性樹脂はアクリル系樹脂である特許請求の
範囲第１項又は第２項記載の樹脂組成物。(3) The resin composition according to claim 1 or 2, wherein the thermoplastic resin is an acrylic resin.