JPS6317963A - Flame-retardant electrically conductive resin composition - Google Patents
Flame-retardant electrically conductive resin compositionInfo
- Publication number
- JPS6317963A JPS6317963A JP16145186A JP16145186A JPS6317963A JP S6317963 A JPS6317963 A JP S6317963A JP 16145186 A JP16145186 A JP 16145186A JP 16145186 A JP16145186 A JP 16145186A JP S6317963 A JPS6317963 A JP S6317963A
- Authority
- JP
- Japan
- Prior art keywords
- flame
- resin composition
- retardant
- resin
- conductive resin
- 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.)
- Pending
Links
- 239000003063 flame retardant Substances 0.000 title claims abstract description 23
- 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 title claims abstract description 21
- 239000011342 resin composition Substances 0.000 title claims abstract description 12
- 239000000835 fiber Substances 0.000 claims abstract description 21
- 229920005989 resin Polymers 0.000 claims abstract description 19
- 239000011347 resin Substances 0.000 claims abstract description 19
- 229910052751 metal Inorganic materials 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 16
- -1 aromatic bromine compound Chemical class 0.000 claims abstract description 15
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 10
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 150000003014 phosphoric acid esters Chemical class 0.000 claims abstract description 8
- 150000002366 halogen compounds Chemical class 0.000 claims abstract description 6
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 4
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052794 bromium Inorganic materials 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 239000010949 copper Substances 0.000 claims abstract description 4
- 229910000881 Cu alloy Inorganic materials 0.000 claims abstract description 3
- 239000011231 conductive filler Substances 0.000 claims abstract 2
- 229910019142 PO4 Inorganic materials 0.000 claims description 12
- 239000010452 phosphate Substances 0.000 claims description 12
- 229910001369 Brass Inorganic materials 0.000 claims description 4
- 239000010951 brass Substances 0.000 claims description 4
- 229910000906 Bronze Inorganic materials 0.000 claims 1
- 239000010974 bronze Substances 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 12
- CAYGQBVSOZLICD-UHFFFAOYSA-N hexabromobenzene Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1Br CAYGQBVSOZLICD-UHFFFAOYSA-N 0.000 abstract description 7
- 238000013329 compounding Methods 0.000 abstract 2
- 230000005670 electromagnetic radiation Effects 0.000 abstract 2
- 238000001125 extrusion Methods 0.000 description 9
- 238000004898 kneading Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 239000008188 pellet Substances 0.000 description 6
- OZHJEQVYCBTHJT-UHFFFAOYSA-N 1,2,3,4,5-pentabromo-6-methylbenzene Chemical compound CC1=C(Br)C(Br)=C(Br)C(Br)=C1Br OZHJEQVYCBTHJT-UHFFFAOYSA-N 0.000 description 4
- 229910052736 halogen Inorganic materials 0.000 description 4
- 150000002367 halogens Chemical class 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 4
- 239000004721 Polyphenylene oxide Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000004014 plasticizer Substances 0.000 description 3
- 229920006380 polyphenylene oxide Polymers 0.000 description 3
- VEORPZCZECFIRK-UHFFFAOYSA-N 3,3',5,5'-tetrabromobisphenol A Chemical group C=1C(Br)=C(O)C(Br)=CC=1C(C)(C)C1=CC(Br)=C(O)C(Br)=C1 VEORPZCZECFIRK-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 2
- LJCFOYOSGPHIOO-UHFFFAOYSA-N antimony pentoxide Chemical compound O=[Sb](=O)O[Sb](=O)=O LJCFOYOSGPHIOO-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000012796 inorganic flame retardant Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 description 2
- KOWVWXQNQNCRRS-UHFFFAOYSA-N tris(2,4-dimethylphenyl) phosphate Chemical compound CC1=CC(C)=CC=C1OP(=O)(OC=1C(=CC(C)=CC=1)C)OC1=CC=C(C)C=C1C KOWVWXQNQNCRRS-UHFFFAOYSA-N 0.000 description 2
- QIVUCLWGARAQIO-OLIXTKCUSA-N (3s)-n-[(3s,5s,6r)-6-methyl-2-oxo-1-(2,2,2-trifluoroethyl)-5-(2,3,6-trifluorophenyl)piperidin-3-yl]-2-oxospiro[1h-pyrrolo[2,3-b]pyridine-3,6'-5,7-dihydrocyclopenta[b]pyridine]-3'-carboxamide Chemical compound C1([C@H]2[C@H](N(C(=O)[C@@H](NC(=O)C=3C=C4C[C@]5(CC4=NC=3)C3=CC=CN=C3NC5=O)C2)CC(F)(F)F)C)=C(F)C=CC(F)=C1F QIVUCLWGARAQIO-OLIXTKCUSA-N 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- ASMQGLCHMVWBQR-UHFFFAOYSA-M diphenyl phosphate Chemical compound C=1C=CC=CC=1OP(=O)([O-])OC1=CC=CC=C1 ASMQGLCHMVWBQR-UHFFFAOYSA-M 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920005669 high impact polystyrene Polymers 0.000 description 1
- 239000004797 high-impact polystyrene Substances 0.000 description 1
- 238000001746 injection moulding Methods 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
- 238000000034 method Methods 0.000 description 1
- XULSCZPZVQIMFM-IPZQJPLYSA-N odevixibat Chemical compound C12=CC(SC)=C(OCC(=O)N[C@@H](C(=O)N[C@@H](CC)C(O)=O)C=3C=CC(O)=CC=3)C=C2S(=O)(=O)NC(CCCC)(CCCC)CN1C1=CC=CC=C1 XULSCZPZVQIMFM-IPZQJPLYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- SFENPMLASUEABX-UHFFFAOYSA-N trihexyl phosphate Chemical compound CCCCCCOP(=O)(OCCCCCC)OCCCCCC SFENPMLASUEABX-UHFFFAOYSA-N 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（発明の目的〕
（産業上の利用分野）
本発明は、難燃性および電磁波シールド性にすぐれた難
燃性導電組成物に関するもので、電磁波シールド材とし
て、機雷部品に利用されるものである。Detailed Description of the Invention (Objective of the Invention) (Industrial Application Field) The present invention relates to a flame-retardant conductive composition with excellent flame retardancy and electromagnetic shielding properties, and is used as an electromagnetic shielding material for mine parts. It is used for.
（従来の技術）
樹脂成形品のうちコンピューター、ＯＡ機器等に使用さ
れるものは、電磁波シールド対策として樹脂に金属短繊
維を混入し、ＯＡ機器、自動車部品等は火災に対する安
全対策上難燃剤の添加が行われている。(Prior technology) Among resin molded products, those used in computers, OA equipment, etc. are mixed with short metal fibers in the resin as a measure to shield electromagnetic waves, and OA equipment, automobile parts, etc. are mixed with flame retardants as a safety measure against fire. addition is being made.
このように電磁波シールド性と難燃性とを持ちかつ材料
の機械的特性などの物性が低下しない樹脂組成物が要求
されており、特開昭５９−１５５４４８号公報にはスチ
レン系樹脂にアルミ合金繊維を加え更にハロゲン含有有
機化合物を添加した樹脂組成物が開示され、特開昭６０
−１２５１号にはポリフェレンエーテル系樹脂に金属繊
維およびフォスフェート化合物を配合した組成物が開示
されている。Thus, there is a need for a resin composition that has electromagnetic wave shielding properties and flame retardancy and does not deteriorate the physical properties such as the mechanical properties of the material. A resin composition containing fibers and a halogen-containing organic compound was disclosed, and published in JP-A-60
No. 1251 discloses a composition in which metal fibers and a phosphate compound are blended with a polyferene ether resin.
（発明が解決しようとする問題点）
然しアルミ合金繊維は電磁波シールド性が弱く、体積固
有抵抗値１０−２Ωにするためには銅または黄銅に比較
して２〜３倍以上添加する必要があり、その結果材料の
機械的強度を低下させ、また難燃剤としてフォスフェー
ト化合物を少量添加しただけでは、充分な難燃性を得る
ことができず多量の添加をすれば、材料の機械的特性、
熱変形温度が低下する、という問題点がある。(Problem to be solved by the invention) However, aluminum alloy fibers have poor electromagnetic shielding properties, and in order to achieve a volume resistivity of 10-2Ω, it is necessary to add 2 to 3 times more than copper or brass. As a result, the mechanical strength of the material decreases, and adding a small amount of a phosphate compound as a flame retardant will not provide sufficient flame retardancy, and adding a large amount will reduce the mechanical properties of the material.
There is a problem that the heat distortion temperature decreases.
本発明は樹脂に高度の電磁波シールド性と難燃性を有し
、かつ成形加工性２機械的特性にすぐれた電磁波シール
ド用難燃性樹脂組成物を提供することを技術的課題とす
るものである。The technical object of the present invention is to provide a flame-retardant resin composition for electromagnetic shielding that has high electromagnetic shielding properties and flame retardancy, and has excellent moldability and mechanical properties. be.
〔発明の構成〕
（問題点を解決するための手段）
前記技術的課題を解決するために講じた技術的手段は次
のようである。すなわち、金属短繊維。[Structure of the invention] (Means for solving the problem) The technical means taken to solve the above technical problem are as follows. In other words, short metal fibers.
熱可塑性樹脂含ハロゲン、固定難燃剤等の組成物に加え
て難燃効果及び可塑化効果を有する液状リン酸エステル
を添加するものである。In addition to a composition of a thermoplastic resin containing halogen and a fixed flame retardant, a liquid phosphoric acid ester having a flame retardant effect and a plasticizing effect is added.
具体的には、
（１）金属短繊維として直径１０〜１００μｍ、長さ０
．５〜１０龍の銅及び銅合金よりなる繊維で、（２）熱
可塑性樹脂はスチレン系樹脂を含有する共重合物の混合
物で、ポリスチレン、耐衝撃性ポリスチレン、ＡＢＳ樹
脂、スチレン変性ポリフェニレンオキシド（ＰＰＯ）樹
脂があり、これらの２種以上を混合してもよく、
（３） 含ハロゲン固体難燃剤は分子量６００以下の
芳香族臭素化合物で、ヘキサブロモベンゼン（ＨＢＢ）
、ペンタブロモトルエン（ＰＢＴ）。Specifically, (1) Short metal fibers with a diameter of 10 to 100 μm and a length of 0
．． (2) The thermoplastic resin is a mixture of copolymers containing styrene resin, including polystyrene, high-impact polystyrene, ABS resin, and styrene-modified polyphenylene oxide (PPO). ) resins, and two or more of these may be mixed; (3) halogen-containing solid flame retardants are aromatic bromine compounds with a molecular weight of 600 or less, such as hexabromobenzene (HBB);
, pentabromotoluene (PBT).
テトラブロモビスフェノールＡ （ＴＢＡ）、）リブロ
ムフェノールがあり添加量は金属繊維と樹脂の合計１０
０重量部に対して２重量部から２５重量部、とりわけ１
０重量部から２０重量部がよ（、
（４）液状リン酸エステルはタレジルジフェニルホスヘ
ート（Ｃｒ）Ｐ）、トリへキシルホスヘート（ＴＨＰ）
、キシレニルジフェニルホスヘート（ＸＤＰ）、）リク
レジルホスフエート（ＴＣＰ）、トリキシレニルホスフ
ェ−） （ＴＸＰ）。There is tetrabromobisphenol A (TBA), ribomphenol, and the amount added is 10 in total for metal fibers and resin.
0 parts by weight to 2 to 25 parts by weight, especially 1 part by weight
0 to 20 parts by weight (4) Liquid phosphoric acid esters include talesyl diphenyl phosphate (Cr)P), trihexyl phosphate (THP)
, xylenyl diphenyl phosphate (XDP), ) lyresyl phosphate (TCP), trixylenyl phosphate (TXP).
トリブチルホスフェ−） （ＴＢＰ）、ｌ−リオクチル
ホスフエート（ＴＯＰ）、）リノニルホスフエート（Ｔ
ＮＰ）、モノオクチルジフェニルホスフェートなどがあ
り、添加量は金属短繊維と樹脂の合計１００重量部に対
して１重量部から５重量部、とりわけ２重量部から３重
量部添加した難燃性導電樹脂組成物である。Tributyl phosphate (TBP), l-lioctyl phosphate (TOP), ) linonyl phosphate (T
NP), monooctyldiphenyl phosphate, etc., and the amount added is 1 to 5 parts by weight, especially 2 to 3 parts by weight, for a total of 100 parts by weight of short metal fibers and resin.Flame-retardant conductive resin It is a composition.
（作用） 前記技術的手段は次のように作用する。(effect) The technical means works as follows.
銅及び銅合金よりなる金属短繊維の添加量は１〜４０容
量％で、５〜２５容量％が良好である。The amount of short metal fibers made of copper and copper alloy added is 1 to 40% by volume, preferably 5 to 25% by volume.
また難燃剤として分子量６００以下の芳香族臭素化合物
を用いることにより、樹脂の燃焼時において気化または
吸熱分解して吸熱効果が生じ、燃焼時の吸熱により銅及
び銅合金よりなる金属知識維の蓄熱性が打ち消されるも
ので分子量が６００を越える芳香族臭素化合物は樹脂の
燃焼時においても気化または吸熱分解しないものである
。In addition, by using an aromatic bromine compound with a molecular weight of 600 or less as a flame retardant, it vaporizes or decomposes endothermically when the resin is burned, producing an endothermic effect. An aromatic bromine compound having a molecular weight of more than 600 and having a molecular weight of more than 600 does not vaporize or decompose endothermically even when the resin is burned.
無機系難燃助剤の三酸化アンチモン、五酸化アンチモン
、酸化ジルコニウムがあり、このような無機系難燃助剤
を添加するにより、−ヒ記難燃剤との相乗効果によって
難燃効果が向上し、ハロゲン含有有機化物１００重量部
に対し、１〜５０重量部、好ましくは１５〜３０重量部
が良い。There are inorganic flame retardant aids such as antimony trioxide, antimony pentoxide, and zirconium oxide, and by adding these inorganic flame retardant aids, the flame retardant effect improves due to the synergistic effect with the flame retardant listed in , 1 to 50 parts by weight, preferably 15 to 30 parts by weight, per 100 parts by weight of the halogen-containing organic compound.
またスチレン系樹脂を含む熱可塑性樹脂単体のペレット
にリン酸エステルの混合することにより、ペレットの表
面がリン酸エステルで覆われるために、ハロゲン化合物
及び金属短繊維がペレット表面に付着しやすくなり混練
押出時のホッパー内での各素材の分離が少なくなり結果
として押出混練性の向上と各種素材の均一混練性が向上
し、またリン酸エステルは可塑剤としての性質も有し、
溶融粘度がやや低下するため材料としての成形流動性が
向上し、射出成形できる最小−火工でみると、リン酸エ
ステルの添加していない材料に比べ約１Ｏｋｇ／ｃｄ（
ゲージ圧）低い圧力でも成形可能となり成形加工性が良
くなる。In addition, by mixing phosphate ester into pellets of thermoplastic resin alone containing styrene resin, the surface of the pellet is covered with phosphate ester, which makes it easier for halogen compounds and short metal fibers to adhere to the pellet surface, making it easier to knead. Separation of each material in the hopper during extrusion is reduced, resulting in improved extrusion kneading properties and uniform kneading properties of various materials.Furthermore, the phosphoric acid ester also has properties as a plasticizer.
As the melt viscosity is slightly lowered, the molding fluidity of the material improves, and the minimum amount that can be injection molded is approximately 1 Okg/cd (in terms of pyrotechnics) compared to materials without the addition of phosphate ester.
It can be molded even at low pressure (gauge pressure), improving molding processability.
（実施例） 以下具体的な実施例について説明する。(Example) Specific examples will be described below.
（実施例−１）
直径６０μｍ、長さ３龍の６−４黄銅繊維とＡＢＳ樹脂
とをそれぞれ１５ＶＯＬ％と８５ＶＯＬ％となるように
計り、これらを１００重量部としたものに対し、ヘキサ
ブロモベンゼン（ＨＢ Ｂ）ｌａ部、 クレジルフェ
ニルホスヘー） （ＣＤＰ）２部、三酸化アンチモン２
．５部を加え、よくトライブレンドした後押出機のホッ
パー内に投入し、２３０〜２４５℃の温度に加熱し混線
押出しした後ペレタイザーで直径３ｍ、長さ４ｆｉに切
断しペレットを作成した。次にこれを射出成形機にて抵
抗測定用試験片（１２０ｘ１２０Ｘ３ｍ）とＵＬ−９４
燃焼試験用試験片（６，４Ｘ１２．７Ｘ１２０１１）を
作成した。(Example-1) A 6-4 brass fiber with a diameter of 60 μm and a length of 3 mm and an ABS resin were measured to have a content of 15 VOL% and 85 VOL%, respectively, and compared to 100 parts by weight of these, hexabromobenzene (HB B) la part, cresyl phenyl phosphor) (CDP) 2 parts, antimony trioxide 2 parts
．． After adding 5 parts of the mixture and tri-blending it well, it was put into the hopper of an extruder, heated to a temperature of 230 to 245°C, cross-extruded, and then cut into pieces of 3 m in diameter and 4 fi in length using a pelletizer to create pellets. Next, this was put into an injection molding machine with a test piece for resistance measurement (120 x 120 x 3 m) and a UL-94
A test piece (6.4 x 12.7 x 12011) for combustion test was prepared.
前者は両端を軽く研磨した後導電性銀ペーストを塗布し
抵抗を測定した結果、体積固有抵抗で４゜６Ｘ１０−３
から８．４ＸｌＯ−３ΩｃＩ１１であった。For the former, after lightly polishing both ends, conductive silver paste was applied and the resistance was measured, and the volume resistivity was 4゜6X10-3.
to 8.4XlO-3ΩcI11.
後者はＵＬ−９４燃焼試験に供試して５個の試験片の１
回目、２回目の接炎後消火までの秒数の総計は２．９１
秒であり、ＧＬＯＷＩＮＧも、垂れ落ちも、ＦＬＡＭＩ
ＮＧもなくｖ−０と認められ、押出混練性、成形性も良
好であった。The latter was one of the five test pieces subjected to the UL-94 combustion test.
The total number of seconds until extinguishment after the first and second flame contact is 2.91
Seconds, GLOWING, dripping, FLAMI
It was recognized as v-0 with no NG, and the extrusion kneading properties and moldability were also good.
（実施例−２）
実施例−１の金属短繊維の材質を７−３黄銅とし、同様
の試験をした結果体積固有抵抗は３．６×１０−３から
６．８Ｘ１０−３Ωｃｍであり、かつ■−〇と認められ
た。(Example 2) The material of the short metal fiber in Example 1 was 7-3 brass, and the same test was conducted, and the result was that the volume resistivity was 3.6 x 10 -3 to 6.8 x 10 -3 Ωcm, and ■−〇 was recognized.
（実施例−３）
実施例−１の金属短繊維を直径９０μｍ、長さ３Ｎの大
きさとし、ＨＢＢをペンタブロモトルエン（ＰＢＴ）と
したものは体積固有抵抗４．９ Ｘ １０−３から６．
９Ｘ１０−３Ω儂であり、Ｖ−Ｏと認められ混練押出作
業性も極めて良好であった。(Example 3) The short metal fiber of Example 1 with a diameter of 90 μm and a length of 3N and with pentabromotoluene (PBT) as HBB has a volume resistivity of 4.9 x 10-3 to 6.
The resistance was 9×10 −3 Ω, which was recognized as V-O, and the kneading and extrusion workability was also extremely good.
（実施例−４）
実施例−１の金属短繊維を直径４０μｍ、長さ２ｍとし
、ＣＤＰのかわりにトリへキシルホスへ一ト（ＴＨＰ）
としたものは体積固有抵抗４．２×１０−３から７．２
Ｘ１０−３ΩΩで、Ｖ−Ｏと認められ押出混練性、成形
性も良好であった。(Example-4) The short metal fiber of Example-1 was made into a diameter of 40 μm and a length of 2 m, and trihexylphosate (THP) was used instead of CDP.
The volume resistivity is 4.2 x 10-3 to 7.2
X10-3ΩΩ, it was recognized as V-O, and the extrusion kneading properties and moldability were also good.
（実施例−５）
実施例−１の樹脂を変性ｐｐｏ樹脂とし、ＨＢＢを１０
部としたものは体積固有抵抗５．８Ｘ１０−３から８．
２Ｘ１０−３Ω国で、Ｖ−Ｏと認メラれた。(Example-5) The resin of Example-1 was modified PPO resin, and HBB was 10
The volume resistivity ranges from 5.8X10-3 to 8.
In the 2X10-3Ω country, it was recognized as V-O.
（比較例−１）
実施例−１のＣＤＰを除いたものは、体積固有抵抗が８
．９ Ｘ １０−３から５．４Ｘ１０−３Ω（２）であ
り、混練押出時、ストランドがたいへん切れやすく作業
性が悪い上、成形時にも高い射出圧を必要とした。ただ
しＵＬ−９４燃焼試験では、■−〇と認められた。(Comparative Example-1) The volume resistivity of Example-1 excluding CDP was 8.
．． 9 x 10 -3 to 5.4 x 10 -3 Ω (2), and the strands were very easy to break during kneading and extrusion, resulting in poor workability, and high injection pressure was also required during molding. However, in the UL-94 combustion test, it was recognized as ■-〇.
（比較例−２）
実施例−１のＨＢＢを１０部としたものはＵＬ−９４に
於いて垂れ落ちがあり、綿が燃焼し、■−２と認められ
た。(Comparative Example-2) The product of Example-1 containing 10 parts of HBB had dripping and burning of cotton in UL-94, and was recognized as ■-2.
以上を第１表に示す。第１表より実施例−１〜５はいず
れもＶ−Ｏで体積固有抵抗は３．５〜８゜Ｘｌ０−３の
範囲内にあり各ロットごとのバラツキは極めて少ないも
のである。The above is shown in Table 1. From Table 1, Examples 1 to 5 all have V-O volume resistivities within the range of 3.5 to 8°Xl0-3, and there is very little variation from lot to lot.
本発明は次の効果を有する。すなわち、前記方法による
難燃性導電樹脂組成物は優れた特性である低抵抗でかつ
ＵＬＶ−０の特性を有するが、これは樹脂と金属繊維と
の濡れ性が液状リン酸エステルが介在することにより金
属繊維相互の接触する確率が高く低抵抗となり、またリ
ン酸エステルは可塑剤として使用することにより、混練
押出時の溶融粘度が若干低下し、その結果バレル内での
剪断力の受は方が弱くなりその分だけ繊維の切損が少な
くなり、その結果成形品中の繊維長さが従来材よりやや
太き（なり繊維間の接触確率が高くなり、高度な電磁波
シールド性を有するものである。更に、液状リン酸エス
テルでペレット表面を漏らすためハロゲン化合物粉末が
ペレット表面に一様付着する結果ホッパー内での各素材
の分離が少なくなり、均一溶融混練ができ安定した押出
が行えるため、ストランド切れが起こりに＜（、押出混
練の作業性が大巾に向上した。また、リン酸エステルは
可塑剤としての性質も有しているので、溶融時の粘土が
その仔細下し成形時の流動性が向上した（これは、比較
的大物成形品の成形が行いやすいことを意味している）
。The present invention has the following effects. That is, the flame-retardant conductive resin composition prepared by the above method has excellent characteristics of low resistance and ULV-0, but this is because the wettability of the resin and metal fibers is improved by the presence of the liquid phosphate ester. This increases the probability that the metal fibers will come into contact with each other, resulting in low resistance. Also, by using the phosphate ester as a plasticizer, the melt viscosity during kneading and extrusion is slightly lowered, and as a result, the shearing force in the barrel is less likely to be absorbed. As a result, the length of the fibers in the molded product is slightly thicker than that of conventional materials (and the probability of contact between fibers is higher, making it highly electromagnetic shielding). Furthermore, since the liquid phosphoric acid ester leaks from the pellet surface, the halogen compound powder uniformly adheres to the pellet surface, which reduces the separation of each material in the hopper, allowing uniform melting and kneading and stable extrusion. The workability of extrusion kneading has been greatly improved.The phosphoric acid ester also has properties as a plasticizer, so the clay when melted is finely reduced during molding. Improved fluidity (this means it is easier to mold relatively large molded products)
.
Claims (5)
あるハロゲン化合物と難燃助剤である三酸化アンチモン
を用いた難燃性導電樹脂組成物に液状のリン酸エステル
を添加した難燃性導電樹脂組成物。(1) Flame retardant with liquid phosphate ester added to a flame retardant conductive resin composition using a conductive filler made of short metal fibers, a halogen compound as a flame retardant, and antimony trioxide as a flame retardant aid. conductive resin composition.
りなる特許請求の範囲第１項に記載の難燃性導電樹脂組
成物。(2) The flame-retardant conductive resin composition according to claim 1, wherein the short metal fibers are made of a copper alloy such as copper, brass, or bronze.
含有する熱可塑性樹脂よりなる特許請求の範囲第１項に
記載の難燃性導電樹脂組成物。(3) The flame-retardant conductive resin composition according to claim 1, wherein the resin is a styrene resin or a thermoplastic resin containing a styrene resin.
臭素化合物よりなる特許請求の範囲第１項に記載の難燃
性導電組成物。(4) The flame-retardant conductive composition according to claim 1, wherein the halogen compound is an aromatic bromine compound having a molecular weight of 600 or less.
導電樹脂組成物１００重量部当り、本剤を０．５〜５重
量添加した特許請求の範囲第１項に記載の難燃性導電組
成物。(5) The flame retardance according to claim 1, wherein the phosphoric acid ester is a liquid at room temperature, and 0.5 to 5 weight of this agent is added per 100 parts by weight of the flame retardant conductive resin composition. Conductive composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16145186A JPS6317963A (en) | 1986-07-09 | 1986-07-09 | Flame-retardant electrically conductive resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16145186A JPS6317963A (en) | 1986-07-09 | 1986-07-09 | Flame-retardant electrically conductive resin composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6317963A true JPS6317963A (en) | 1988-01-25 |
Family
ID=15735353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16145186A Pending JPS6317963A (en) | 1986-07-09 | 1986-07-09 | Flame-retardant electrically conductive resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6317963A (en) |
-
1986
- 1986-07-09 JP JP16145186A patent/JPS6317963A/en active Pending
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