JPH0427262B2 - - Google Patents
Info
- Publication number
- JPH0427262B2 JPH0427262B2 JP59228268A JP22826884A JPH0427262B2 JP H0427262 B2 JPH0427262 B2 JP H0427262B2 JP 59228268 A JP59228268 A JP 59228268A JP 22826884 A JP22826884 A JP 22826884A JP H0427262 B2 JPH0427262 B2 JP H0427262B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- polypropylene resin
- present
- fibers
- 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 - Lifetime
Links
- 239000000835 fiber Substances 0.000 claims description 18
- -1 polypropylene Polymers 0.000 claims description 17
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 15
- 239000004743 Polypropylene Substances 0.000 claims description 14
- 229920001155 polypropylene Polymers 0.000 claims description 14
- 239000011347 resin Substances 0.000 claims description 11
- 229920005989 resin Polymers 0.000 claims description 11
- 229920001577 copolymer Polymers 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 7
- 150000003839 salts Chemical class 0.000 claims description 7
- 239000004215 Carbon black (E152) Substances 0.000 claims description 6
- 229930195733 hydrocarbon Natural products 0.000 claims description 6
- 229910001369 Brass Inorganic materials 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010951 brass Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000011342 resin composition Substances 0.000 claims description 3
- 230000000704 physical effect Effects 0.000 description 6
- 239000008188 pellet Substances 0.000 description 4
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000007822 coupling agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229920003145 methacrylic acid copolymer Polymers 0.000 description 2
- 229940117841 methacrylic acid copolymer Drugs 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000004711 α-olefin Substances 0.000 description 2
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
- 150000007934 α,β-unsaturated carboxylic acids Chemical class 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Description
（産業上の利用分野）
本発明は導電性ポリプロピレン樹脂組成物に関
するものである。
（従来の技術）
ポリプロピレン樹脂に金属繊維を混合して導電
性を付与することは従来より広く行なわれてい
る。
しかしながら、この金属繊維混入ポリプロピレ
ン樹脂は、金属繊維と樹脂の界面の接着強度が充
分でなく、環境条件、特に湿度条件が変動するこ
とにより、種々の物性が低下するという欠点を有
している。
この欠点を改良する方法として、シラン系、或
はチタネート系等のカツプリング剤を用いて金属
繊維の表面を処理することが行なわれているが、
未だ充分に満足すべき結果は得られていない。
（発明が解決しようとする問題点）
本発明者らは、かゝる従来技術の有する欠点を
改良すべく鋭意研究した結果、本発明を達成し
た。本発明の目的は耐久性に優れた導電性ポリプ
ロピレン樹脂組成物を提供するにある。
（問題点を解決するための手段）
即ち、本発明はポリプロピレン樹脂100重量部
に対して、イオン性炭化水素共重合体の金属塩を
少なくとも0.1重量部と金属繊維５〜200重量部と
を配合してなる導電性ポリプロピレン樹脂よりな
るものである。
以下、本発明を詳細に説明する。
本発明に使用するポリプロピレン重合体は、プ
ロピレンのホモポリマーの他、他のオレフインと
の共重合体、或は、アクリル酸等の有機不飽和カ
ルボン酸とのグラフトポリマーなどが挙げられ
る。
本発明に使用するイオン性炭化水素共重合体の
金属塩とはペンダントカルボキシル基を含有する
炭化水素共重合体の亜鉛又はナトリウム塩のこと
であり、例えばカルボキシル基が少なくとも部分
的に亜鉛、又は、ナトリウムイオンによつて中和
してある炭素数２以上のα−オレフインと、α、
β−不飽和カルボン酸又はその誘導体との共重合
体の塩類、或は芳香族オレフインと無水マレイン
酸との共重合体の塩類である。
炭素数２以上のα−オレフインとしては、エチ
レン、プロピレン、ブテン−１、ペンテン−１、
４−メチル−ブテン−１、４−メチル−ペンテン
−１等が挙げられる。
又、α、β−不飽和カルボン酸又はその誘導体
としては、アクリル酸、メタクリル酸、マレイン
酸、フマル酸、或はこれらの酸の無水物又はエス
テル等が挙げられる。芳香族オレフインとしては
スチレンが挙げられる。
本発明に於いて使用されるイオン性炭化水素共
重合体の金属塩のポリプロピレン樹脂100重量部
に対する配合量は0.1重量部以上、好ましくは１
重量部以上である。配合量が0.1重量部未満の場
合は使用温度の変動に対する導電性を初めとした
物性の低下が著しく、本発明の目的を達すること
が出来ない。
本発明に使用される金属繊維としては、鋼、
銅、黄銅、アルミニウム等が挙げられるが、特に
鋼、黄銅が好ましい。
金属繊維の配合量は、ポリプロピレン樹脂100
重量部に対して５〜200重量部、特に10〜150重量
部が好ましい。
配合量が５重量部未満の場合には導電性の付与
効果が不充分であり、一方、200重量部を超える
場合には、流動性の低下が著しく、成形加工が極
めて困難となる。
（発明の効果）
本発明により得られる導電性ポリプロピレン樹
脂は、ICやLSIを使用した各種電子機器より放射
される不要電磁波のシールド材として筐体等に使
用される。
（実施例）
以下、実施例を用いて本発明を更に詳細に説明
する。
実施例１〜３、比較例１
ポリプロピレン樹脂（三井石油化学工業(株)製、
Ｊ−700）、エチレン／メタクリル酸共重合体の亜
鉛塩（三井デユポン・ポリケミカル(株)製、ハイミ
ラン1652）及び、繊維径30μｍ、繊維長１mmの黄
銅繊維（神戸鋳鉄所(株)製、Ｃ−2600、30×１）を
表−１に示す組成比で配合し、浴融混練してペレ
ツトを製造した。
次いで得られたペレツトを通常実施されている
ポリプロピレンの射出成形条件で射出成形し、物
性測定用試験片を得た。
この試験片に対し、−30℃、23℃、85℃、23℃
と温度に各々１時間保持する冷熱サイクルを10回
繰返した後、物性の測定を行つた。結果を表−２
に示す。尚、表−１の数値は重量部を示し、実施
例２以下の物性測定は表−２と同じ方法とした。
(Industrial Application Field) The present invention relates to a conductive polypropylene resin composition. (Prior Art) It has been widely practiced to impart electrical conductivity by mixing metal fibers into polypropylene resin. However, this polypropylene resin mixed with metal fibers has the disadvantage that the adhesive strength at the interface between the metal fibers and the resin is insufficient, and various physical properties deteriorate due to fluctuations in environmental conditions, particularly humidity conditions. As a method to improve this drawback, treating the surface of metal fibers with coupling agents such as silane-based or titanate-based coupling agents has been carried out.
Fully satisfactory results have not yet been obtained. (Problems to be Solved by the Invention) The present inventors have achieved the present invention as a result of intensive research aimed at improving the drawbacks of the prior art. An object of the present invention is to provide a conductive polypropylene resin composition with excellent durability. (Means for Solving the Problems) That is, the present invention blends at least 0.1 part by weight of a metal salt of an ionic hydrocarbon copolymer and 5 to 200 parts by weight of metal fibers to 100 parts by weight of a polypropylene resin. It is made of conductive polypropylene resin. The present invention will be explained in detail below. Examples of the polypropylene polymer used in the present invention include homopolymers of propylene, copolymers with other olefins, and graft polymers with organic unsaturated carboxylic acids such as acrylic acid. The metal salt of an ionic hydrocarbon copolymer used in the present invention refers to a zinc or sodium salt of a hydrocarbon copolymer containing pendant carboxyl groups, for example, where the carboxyl groups are at least partially zinc, or α-olefin having 2 or more carbon atoms neutralized with sodium ions, α,
Salts of copolymers with β-unsaturated carboxylic acids or derivatives thereof, or salts of copolymers of aromatic olefin and maleic anhydride. α-olefins having 2 or more carbon atoms include ethylene, propylene, butene-1, pentene-1,
Examples include 4-methyl-butene-1 and 4-methyl-pentene-1. Examples of the α,β-unsaturated carboxylic acid or its derivative include acrylic acid, methacrylic acid, maleic acid, fumaric acid, and anhydrides or esters of these acids. Examples of aromatic olefins include styrene. The amount of the metal salt of the ionic hydrocarbon copolymer used in the present invention is 0.1 part by weight or more, preferably 1 part by weight, based on 100 parts by weight of the polypropylene resin.
Parts by weight or more. If the blending amount is less than 0.1 part by weight, physical properties such as electrical conductivity with respect to fluctuations in operating temperature will deteriorate significantly, making it impossible to achieve the object of the present invention. The metal fibers used in the present invention include steel,
Examples include copper, brass, aluminum, etc., with steel and brass being particularly preferred. The amount of metal fiber mixed is 100% polypropylene resin.
It is preferably 5 to 200 parts by weight, particularly 10 to 150 parts by weight. If the amount is less than 5 parts by weight, the effect of imparting conductivity will be insufficient, while if it exceeds 200 parts by weight, the fluidity will be significantly reduced and molding will become extremely difficult. (Effects of the Invention) The conductive polypropylene resin obtained by the present invention is used in housings and the like as a shielding material for unnecessary electromagnetic waves emitted from various electronic devices using ICs and LSIs. (Example) Hereinafter, the present invention will be explained in more detail using Examples. Examples 1 to 3, Comparative Example 1 Polypropylene resin (manufactured by Mitsui Petrochemical Industries, Ltd.,
J-700), zinc salt of ethylene/methacrylic acid copolymer (Himilan 1652, manufactured by Mitsui Dupont Polychemical Co., Ltd.), and brass fibers with a fiber diameter of 30 μm and a fiber length of 1 mm (manufactured by Kobe Cast Iron Works Co., Ltd., C-2600, 30×1) was blended in the composition ratio shown in Table 1, and the mixture was melt-kneaded in a bath to produce pellets. The resulting pellets were then injection molded under commonly used injection molding conditions for polypropylene to obtain test pieces for measuring physical properties. For this test piece, -30℃, 23℃, 85℃, 23℃
After repeating the cooling/heating cycle 10 times in which the sample was held at the same temperature for 1 hour each, the physical properties were measured. Table 2 of the results
Shown below. The numerical values in Table 1 indicate parts by weight, and the physical properties of Example 2 and subsequent examples were measured using the same method as in Table 2.
【表】【table】
【表】
実施例 ４〜
ポリプロピレン樹脂（三井石油化学鋼工業(株)
製、J740）、エチレン／メタクリル酸共重合体の
ナトリウム塩（三井デユポン・ポリケミカル(株)
製、ハイミラン1707）、及び、繊維径8μｍ繊維長
５mmのステンレス鋼繊維（日本精線(株)製、ナイロ
ンサイジングチヨツプ、SUS316L）を表−３に
示す組成比で配合し、溶融混練してペレツトを製
造した。
次いで得られたペレツトを用いて、前述の実施
例の場合と同様の手順で射出成形した後、冷熱サ
イクルを実施し、物性測定を行つた。結果を表−
４に示す。[Table] Example 4 ~ Polypropylene resin (Mitsui Petrochemical Steel Industries, Ltd.)
J740), sodium salt of ethylene/methacrylic acid copolymer (Mitsui Dupont Polychemical Co., Ltd.)
(manufactured by Nippon Seisen Co., Ltd., Himilan 1707) and stainless steel fiber (manufactured by Nippon Seisen Co., Ltd., nylon sizing tip, SUS316L) with a fiber diameter of 8 μm and a fiber length of 5 mm were mixed in the composition ratio shown in Table 3 and melt-kneaded. Pellets were produced. Next, the obtained pellets were injection molded in the same manner as in the above-mentioned example, followed by a cooling/heating cycle and measurement of physical properties. Display the results -
4.
【表】【table】
【表】
尚、比較例３は、溶融時の流動性が極めて悪
く、混練及び成形は出来なかつた。[Table] Note that Comparative Example 3 had extremely poor fluidity during melting, and could not be kneaded or molded.
Claims (1)
オン性炭化水素共重合体の金属塩を少なくとも
0.1重量部と金属繊維５〜200重量部とを配合して
なる導電性樹脂組成物。 ２ イオン性炭化水素共重合体の金属塩の配合量
が１重量部以上である特許請求の範囲第１項記載
の組成物。 ３ 金属繊維が黄銅繊維、鋼繊維である特許請求
の範囲第１項記載の組成物。 ４ 金属繊維の配合量が10〜150重量部である特
許請求の範囲第１項記載の組成物。[Claims] 1. At least a metal salt of an ionic hydrocarbon copolymer is added to 100 parts by weight of a polypropylene resin.
A conductive resin composition comprising 0.1 part by weight and 5 to 200 parts by weight of metal fibers. 2. The composition according to claim 1, wherein the amount of the metal salt of the ionic hydrocarbon copolymer is 1 part by weight or more. 3. The composition according to claim 1, wherein the metal fibers are brass fibers or steel fibers. 4. The composition according to claim 1, wherein the amount of metal fibers is 10 to 150 parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22826884A JPS61106647A (en) | 1984-10-29 | 1984-10-29 | Electrically conductive resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22826884A JPS61106647A (en) | 1984-10-29 | 1984-10-29 | Electrically conductive resin composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61106647A JPS61106647A (en) | 1986-05-24 |
| JPH0427262B2 true JPH0427262B2 (en) | 1992-05-11 |
Family
ID=16873806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22826884A Granted JPS61106647A (en) | 1984-10-29 | 1984-10-29 | Electrically conductive resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61106647A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6904884B2 (en) | 2002-02-20 | 2005-06-14 | Yamaha Hatsudoki Kabushiki Kaisha | Balance device for engines |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51109943A (en) * | 1975-03-25 | 1976-09-29 | Showa Denko Kk | SETSUCHAKUSEINOSUGURETA OREFUINKEIJUSHISOSEIBUTSU |
| JPS5933340A (en) * | 1982-07-21 | 1984-02-23 | イ−・アイ・デユポン・デ・ニモアス・アンド・カンパニ− | Molding resin |
-
1984
- 1984-10-29 JP JP22826884A patent/JPS61106647A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51109943A (en) * | 1975-03-25 | 1976-09-29 | Showa Denko Kk | SETSUCHAKUSEINOSUGURETA OREFUINKEIJUSHISOSEIBUTSU |
| JPS5933340A (en) * | 1982-07-21 | 1984-02-23 | イ−・アイ・デユポン・デ・ニモアス・アンド・カンパニ− | Molding resin |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61106647A (en) | 1986-05-24 |
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