JPH0524274B2 - - Google Patents
Info
- Publication number
- JPH0524274B2 JPH0524274B2 JP60168639A JP16863985A JPH0524274B2 JP H0524274 B2 JPH0524274 B2 JP H0524274B2 JP 60168639 A JP60168639 A JP 60168639A JP 16863985 A JP16863985 A JP 16863985A JP H0524274 B2 JPH0524274 B2 JP H0524274B2
- Authority
- JP
- Japan
- Prior art keywords
- inorganic particles
- filler
- binder
- composite material
- copper
- 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
- 239000010954 inorganic particle Substances 0.000 claims description 28
- 239000000945 filler Substances 0.000 claims description 24
- 239000011230 binding agent Substances 0.000 claims description 22
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 19
- 239000002131 composite material Substances 0.000 claims description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 16
- 239000010949 copper Substances 0.000 claims description 15
- 229910052802 copper Inorganic materials 0.000 claims description 14
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 12
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 12
- 239000000344 soap Substances 0.000 claims description 11
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 8
- 239000000377 silicon dioxide Substances 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 6
- 229920001971 elastomer Polymers 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 239000005060 rubber Substances 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 6
- 229910052725 zinc Inorganic materials 0.000 claims description 6
- 239000011701 zinc Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 238000003723 Smelting Methods 0.000 claims description 4
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 4
- 229910017052 cobalt Inorganic materials 0.000 claims description 4
- 239000010941 cobalt Substances 0.000 claims description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 229910052726 zirconium Inorganic materials 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910044991 metal oxide Inorganic materials 0.000 claims 2
- 150000004706 metal oxides Chemical class 0.000 claims 2
- 229910000480 nickel oxide Inorganic materials 0.000 claims 2
- 239000000463 material Substances 0.000 description 7
- 238000005452 bending Methods 0.000 description 6
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 4
- 239000012774 insulation material Substances 0.000 description 4
- 239000004014 plasticizer Substances 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- WWZKQHOCKIZLMA-UHFFFAOYSA-N Caprylic acid Natural products CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 2
- 235000021314 Palmitic acid Nutrition 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 241000779819 Syncarpia glomulifera Species 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- -1 organic acid salt Chemical class 0.000 description 2
- 239000001739 pinus spp. Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 229940036248 turpentine Drugs 0.000 description 2
- OBETXYAYXDNJHR-SSDOTTSWSA-M (2r)-2-ethylhexanoate Chemical compound CCCC[C@@H](CC)C([O-])=O OBETXYAYXDNJHR-SSDOTTSWSA-M 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical class [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- OBETXYAYXDNJHR-UHFFFAOYSA-N alpha-ethylcaproic acid Natural products CCCCC(CC)C(O)=O OBETXYAYXDNJHR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 239000003849 aromatic solvent Substances 0.000 description 1
- GONOPSZTUGRENK-UHFFFAOYSA-N benzyl(trichloro)silane Chemical compound Cl[Si](Cl)(Cl)CC1=CC=CC=C1 GONOPSZTUGRENK-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical class [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- QAEKNCDIHIGLFI-UHFFFAOYSA-L cobalt(2+);2-ethylhexanoate Chemical compound [Co+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O QAEKNCDIHIGLFI-UHFFFAOYSA-L 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N n-hexanoic acid Natural products CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 125000005608 naphthenic acid group Chemical group 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 239000003784 tall oil Substances 0.000 description 1
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
- 239000003981 vehicle Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000010920 waste tyre Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Description
技術分野
本発明は、柔軟性、防音性、加工性に優れた複
合材に関するものであり、遮音材、吸音材、電磁
遮蔽材、防振材等多方面に使用出来る複合材料で
ある。
従来技術
外部の騒音の侵入或いは外部への発散を防止す
る為の遮音材或いは音の反射を弱める吸音材が多
種知られている。シート状に加工し、自動車や鉄
道車両やビルの床面や壁面に敷設したり、凹凸面
や曲面部に接着したり、OA機器のケース材や鋼
板や不織布と張り合わせた複合剤としての用途に
は、出来るだけ薄いシート状で、面密度が大で、
しかも柔軟性の良さと、かつ成型加工性が良いこ
とが要求される。この他大量使用の用途向けには
価格、材料の入手性、耐劣化性も重要である。遮
音効果を高めるためには、面密度を出来るだけ大
にすること、このためには高密度のフイラーを出
来るだけ大量に充填することが大切である。しか
しバインダーに対し無機粒子は概して親和性が乏
しく、大量の充填が困難である。
よつてバインダーとフイラーの適切な組合せが
重要である。即ちバインダーとフイラーの親和性
は相互に関係し、不適当な組合せは製品の機械強
度が乏しく、成形加工時のプレートアウト現象が
発生したり、製品の表面仕上げ性が低下する。
最近可塑剤を含む塩化ビニル系樹脂に、製鉄工
程で副生する鉄酸化物を組み合わせた防音材が特
開昭57−34064号公報に開示されている。該酸化
物は塩化ビニルとの接着性に優れるとされている
が、成型加工時にロール面からの剥離が困難で、
ゲル化時間も長く、得られるシートの曲げ等の機
械的性質も十分とは言えない。また特開昭54−
78742号公報には酸化皮膜もしくはリン酸皮膜を
形成した金属粉を使用する手段が開示されてい
る。概して鉛や銅と有機材料とは親和性が乏し
く、曲げ応力で容易にヒビ割れや切断が発生す
る。
可撓性を有する遮音材は、曲面に密着敷設が可
能のみならず、共鳴作用なく振動吸収と遮音作用
を発揮する。このためには曲げ弾性率が小さく、
折り曲げにも耐える性能が必要である。
本発明が解決しようとする問題点
本発明者は、柔軟性に優れ、しかも面密度の大
きな前述の用途に供するための複合材を、加工性
良く製造する研究を重ねたところ、無機粒子を予
め金属石鹸で表面処理を施すことによりフイラー
の充填可能量を高めることが可能で、しかも極め
て曲げ強度が大きく、上記の全ての目的に全く適
合する事の知見を得て本発明の完成に至つた。
発明の構成
本発明は、塩化ビニル系樹脂若しくはゴムをバ
インダーとし、無機系粒子をフイラーとして混練
成形加工された遮音材において、該フイラーは、
予めコバルト、鉛、ジルコニウム、銅、亜鉛の金
属石鹸から選択される少なくとも１種若しくは２
種以上で表面処理したものを使用することを特徴
とする柔軟性複合材であり、第２の特徴は前記無
機粒子とシリカ粒子を併用する点にある。
以下により詳しく内容を説明する。
本発明の遮音材の基本成分は、塩化ビニル系樹
脂及び、もしくはゴムと無機粒子である。機能的
には前者はバインダー、後者はフイラーと称され
る。
本発明で使用の無機粒子フイラーは、特に遮音
性、吸音性の為には面密度の見地から嵩比重の大
きなものが好ましく、電磁遮蔽性の見地からは、
導電性を有するものが好ましい。具体的には鉛、
銅、鉄、ニツケルの金属、これらの酸化物の微粒
子、あるいは鉛に銅メツキした複合粉末、カーボ
ン、グラフアイト粉末あるいはこれらに銅メツキ
した複合粉末粒子が該当する。これらは単成分と
してのみならず、複数成分であつてもよい。とり
わけ遮音性の向上には鉛、銅の金属微粒子や酸化
鉄を主成分とするものが好ましい。電磁遮蔽効果
を発揮させるには導電性粒子を使用するのが良
い。鉛は比重は大きく、黒色着色の防止上有利で
ある。銅メツキした複合粉末は、導電性向上のた
め好ましい。該無機粒子は、球状、鱗片状、繊維
状何れの形状のものでも良く、100好ましくは200
メツシユアンダーの微粒子を使用するのが有効あ
る。
前記無機粒子の他、第２フイラーとしてシリカ
もしくはシリカ含有成分を併用すると、無機粒子
のバインダーとの親和性が一層向上し、充填可能
量を高めることが出来る。前記無機粒子100重量
部当たりシリカ粒子約５〜30重量部配合使用する
と好ましい。シリカ源としてSiO2，アルミノシ
リケート、nFeO・SiO2，nFeO・Fe2O3・SiO2
（ｎ＝１〜３）等が使用できる。一方アルカリ又
はアルカリ土類金属酸化物をフイラー成分として
使用することは、成形加工性を低下する為は好ま
しくないから、約10wt％以下に制限するのが望
ましい。酸化鉄を無機粒子として使用する場合、
非鉄製練工程で副生する鉄精鉱スラグや製鉄工程
で生成の転炉スラグが、経済的でかつバインダー
とのなじみが良い。とりわけ前者の鉄精鉱スラグ
は、主成分2FeO・SiO2とFe3O4であり、酸化鉄
を60〜90wt％、シリカ成分を10〜30wt％含有す
るため、特に好適である。
上記無機粒子は、予め金属石鹸で表面処理され
る。本発明で使用の石鹸は、コバルト、鉛、ジル
コニウム、銅、亜鉛のいずれかの有機酸塩であ
る。有機酸として炭素数５〜15の脂肪酸、不飽和
脂肪酸、ナフテン酸であり、例えばヘキサン酸、
２−エチルヘキサン酸、パルミチン酸、ステアリ
ン酸、オクチル酸、ヘキサデカン酸、トール油脂
肪酸、ダイマー酸が例示される。カルシウム、カ
ドミウム、亜鉛の有機酸塩は塩化ビニルの安定剤
として公知であるが、本発明のように、複合材で
あつて、そのフイラーを予め表面処理することは
新規な思想である。
前記無機粒子をバインダーと混合するまえに、
予め該石鹸を吸着させる。無機粒子100重量部当
たり石鹸の金属分として約0.02〜５重量部添加
し、乾燥すればよい。添加する場合、石油エキス
トラクト、芳香族系溶媒、ミネラルターペン等で
希釈し、散布もしくは浸漬すると良い。混合後も
しくはバインダー中に添加しても、僅かな効果し
か得られない。第２のフイラーであるシリカは、
表面処理する必要は無い。
前記の無機粒子は塩化ビニル系樹脂あるいはゴ
ムと混合される。これらバインダーに対し上記の
表面処理されたフイラーは極めて親和性が良く、
少量のバインダーに対し多量のフイラーを充填し
ても柔軟性と良好な耐屈曲性を維持できる。塩化
ビニル系樹脂として、ポリ塩化ビニル、塩化ビニ
ルと酢酸ビニルとの共重合体が使用できる。使用
時に可塑剤、安定化剤を配合する。廃ケーブルか
ら回収された被覆材や農芸用として使用済みの塩
化ビニルシート等も好ましく使用できる。またゴ
ムは天然ゴム、合成ゴムのいずれでもよい。廃タ
イヤは好ましいバインダーの１種である。
バインダー100重量部当たりフイラー200〜1700
重量部の割合で混合される。
本発明の柔軟性遮音材を製造するには、バイン
ダーに可塑剤、必要であれば更に金属石鹸等の安
定化剤を適量配合し、これに前処理されたフイラ
ーを混合し、100〜150℃程度に加熱、撹拌しミキ
シングロール等で充分混練する。本発明の遮音材
は、シート状にして使用されるから、カレンダー
成型機、若しくは押し出し成型機を使用し、厚さ
0.5〜10mm程度に仕上げればよい。該シートは、
そのまま使用するか或いは、鋼板や不織布等に張
り合わせて使用される。
以下実施例に基づき説明する。
実施例 １，２，３
塩化ビニル樹脂100重量部、可塑剤として
DOP60重量部、錫系安定剤５重量部の割合のコ
ンパウンド164重量部に対し、以下のフイラーを
それぞれ600重量部混合し、混練した。８インチ
×20インチの２本ロールで２mm厚さのシートを製
造した。加工性および製品の性能の評価結果を第
１表に示す。
フイラー
Ｆ−１；銅製練工程で副生する鉄精鉱スラグ（組
成；酸化鉄72wt％、シリカ20wt％、アルミ
ナ1.5wt％、水分2wt％、残部金属銅、亜鉛）
Ｆ−２；前記Ｆ−１（80重量部）と鉛粒子（20重
量部）の混合物
Ｆ−３；前記Ｆ−１（50重量部）と電解銅粉（50
重量部）の混合物
フイラーの前処理
２−エチルヘキサン酸コバルト石鹸のミネラ
ルターペン液（Co分；10wt％％）を、フイ
ラー100重量部当たりCoとして0.5重量部の割
合で散布し、撹拌後、120℃で乾燥した。
比較のため前処理無しのものも使用した。
TECHNICAL FIELD The present invention relates to a composite material that is excellent in flexibility, soundproofing properties, and workability, and is a composite material that can be used in many fields such as sound insulating material, sound absorbing material, electromagnetic shielding material, and vibration isolating material. BACKGROUND OF THE INVENTION Various types of sound insulating materials for preventing external noise from entering or radiating to the outside, and sound absorbing materials for weakening sound reflection, are known. Processed into a sheet, it can be laid on the floors and walls of automobiles, railway vehicles, and buildings, adhered to uneven or curved surfaces, and used as a composite agent when laminated with OA equipment case materials, steel plates, and nonwoven fabrics. is in the form of a sheet as thin as possible, with high areal density,
Moreover, it is required to have good flexibility and good moldability. In addition, price, availability of materials, and resistance to deterioration are also important for applications in which large quantities are used. In order to improve the sound insulation effect, it is important to increase the areal density as much as possible, and for this purpose, it is important to fill as much high-density filler as possible. However, inorganic particles generally have poor affinity for binders, making it difficult to fill them in large quantities. Therefore, a proper combination of binder and filler is important. That is, the affinity between the binder and the filler is related to each other, and an inappropriate combination results in poor mechanical strength of the product, plate-out phenomenon during molding, and poor surface finish of the product. Recently, Japanese Patent Laid-Open Publication No. 34064/1983 discloses a soundproofing material that combines a vinyl chloride resin containing a plasticizer with iron oxide, which is a by-product of the steel manufacturing process. Although this oxide is said to have excellent adhesion with vinyl chloride, it is difficult to peel off from the roll surface during molding.
The gelation time is also long, and the mechanical properties such as bending of the sheet obtained are not sufficient. Also, JP-A-54-
Publication No. 78742 discloses a means of using metal powder on which an oxide film or a phosphoric acid film is formed. In general, lead and copper have poor affinity with organic materials, and cracks and breaks easily occur due to bending stress. Flexible sound insulating materials can not only be placed closely on curved surfaces, but also exhibit vibration absorption and sound insulating effects without resonance. For this purpose, the bending modulus is small,
It must have the ability to withstand bending. Problems to be Solved by the Invention The inventor of the present invention has repeatedly conducted research into manufacturing a composite material with excellent flexibility and high areal density for use in the above-mentioned applications with good processability. The present invention was completed based on the knowledge that surface treatment with metal soap makes it possible to increase the amount of filler that can be filled, and that it also has extremely high bending strength, completely meeting all of the above objectives. . Structure of the Invention The present invention provides a sound insulation material that is kneaded and molded using a vinyl chloride resin or rubber as a binder and inorganic particles as a filler.
At least one or two selected from cobalt, lead, zirconium, copper, and zinc metal soaps in advance.
This is a flexible composite material characterized by using a material whose surface has been treated with a compound or more.The second feature is that the above-mentioned inorganic particles and silica particles are used in combination. The details will be explained in more detail below. The basic components of the sound insulation material of the present invention are vinyl chloride resin and/or rubber and inorganic particles. Functionally, the former is called a binder, and the latter is called a filler. The inorganic particle filler used in the present invention preferably has a large bulk specific gravity from the viewpoint of areal density, especially for sound insulation and sound absorption properties, and from the viewpoint of electromagnetic shielding property,
Those having electrical conductivity are preferable. Specifically, lead,
This includes metals such as copper, iron, and nickel, fine particles of their oxides, composite powders of lead plated with copper, carbon, graphite powders, and composite powder particles of these metals plated with copper. These may be used not only as a single component but also as multiple components. In particular, to improve sound insulation properties, it is preferable to use metal particles such as lead or copper, or iron oxide as a main component. In order to exhibit an electromagnetic shielding effect, it is preferable to use conductive particles. Lead has a high specific gravity and is advantageous in preventing black coloring. Copper-plated composite powder is preferred because it improves conductivity. The inorganic particles may be spherical, scaly, or fibrous, and have a particle size of 100, preferably 200.
It is effective to use fine mesh under particles. In addition to the inorganic particles, when silica or a silica-containing component is used as a second filler, the affinity of the inorganic particles with the binder is further improved, and the amount that can be filled can be increased. It is preferable to use about 5 to 30 parts by weight of silica particles per 100 parts by weight of the inorganic particles. As a silica source, SiO 2 , aluminosilicate, nFeO・SiO 2 , nFeO・Fe 2 O 3・SiO 2
(n=1-3) etc. can be used. On the other hand, it is not preferable to use an alkali or alkaline earth metal oxide as a filler component because it reduces moldability, so it is desirable to limit the amount to about 10 wt% or less. When using iron oxide as inorganic particles,
Iron concentrate slag, which is a by-product in the non-ferrous smelting process, and converter slag, which is produced in the steel manufacturing process, are economical and have good compatibility with binders. In particular, the former iron concentrate slag is particularly suitable because its main components are 2FeO.SiO 2 and Fe 3 O 4 and it contains 60 to 90 wt% iron oxide and 10 to 30 wt% silica component. The inorganic particles are surface-treated with metal soap in advance. The soap used in the present invention is an organic acid salt of cobalt, lead, zirconium, copper, or zinc. Organic acids include fatty acids with 5 to 15 carbon atoms, unsaturated fatty acids, and naphthenic acids, such as hexanoic acid,
Examples include 2-ethylhexanoic acid, palmitic acid, stearic acid, octylic acid, hexadecanoic acid, tall oil fatty acid, and dimer acid. Although organic acid salts of calcium, cadmium, and zinc are known as stabilizers for vinyl chloride, it is a novel idea to previously surface-treat the filler of a composite material as in the present invention. Before mixing the inorganic particles with the binder,
The soap is adsorbed in advance. Approximately 0.02 to 5 parts by weight of the soap metal may be added per 100 parts by weight of the inorganic particles and dried. When adding it, it is best to dilute it with petroleum extract, aromatic solvent, mineral turpentine, etc., and then spray or soak it. Adding it after mixing or into the binder has only a small effect. The second filler, silica, is
There is no need for surface treatment. The above inorganic particles are mixed with vinyl chloride resin or rubber. The above-mentioned surface-treated filler has extremely good affinity with these binders,
Even if a large amount of filler is filled with a small amount of binder, flexibility and good bending resistance can be maintained. As the vinyl chloride resin, polyvinyl chloride and a copolymer of vinyl chloride and vinyl acetate can be used. Add plasticizers and stabilizers during use. Covering materials recovered from waste cables, used agricultural and agricultural vinyl chloride sheets, etc. can also be preferably used. Further, the rubber may be either natural rubber or synthetic rubber. Waste tires are one preferred binder. 200 to 1700 filler per 100 parts by weight of binder
Mixed in parts by weight. In order to produce the flexible sound insulation material of the present invention, a plasticizer is added to the binder, and if necessary, an appropriate amount of a stabilizer such as a metal soap is added to the binder, and a pretreated filler is mixed with the binder at a temperature of 100 to 150°C. Heat to a moderate degree, stir, and thoroughly knead using a mixing roll or the like. Since the sound insulation material of the present invention is used in the form of a sheet, a calender molding machine or an extrusion molding machine is used to make the thickness.
It is sufficient to finish it to about 0.5 to 10 mm. The sheet is
It can be used as is, or it can be pasted onto a steel plate, nonwoven fabric, etc. The following will be explained based on examples. Examples 1, 2, 3 100 parts by weight of vinyl chloride resin, as a plasticizer
To 164 parts by weight of a compound containing 60 parts by weight of DOP and 5 parts by weight of a tin-based stabilizer, 600 parts by weight of each of the following fillers were mixed and kneaded. A 2 mm thick sheet was produced using two 8 inch x 20 inch rolls. Table 1 shows the evaluation results of processability and product performance. Filler F-1: Iron concentrate slag produced as a by-product in the copper smelting process (composition: 72 wt% iron oxide, 20 wt% silica, 1.5 wt% alumina, 2 wt% water, balance metallic copper and zinc) F-2: F- 1 (80 parts by weight) and lead particles (20 parts by weight) F-3; mixture F-1 (50 parts by weight) and electrolytic copper powder (50 parts by weight)
Filler Pretreatment A mineral turpentine solution (Co content; 10 wt%) of cobalt 2-ethylhexanoate soap was sprinkled at a ratio of 0.5 parts by weight as Co per 100 parts by weight of the filler, and after stirring, 120 Dry at °C. For comparison, a sample without pretreatment was also used.
【表】
前処理の有無 有 有
有 無 無
[Table] Pre-treatment presence Yes Yes Yes No No
Claims (1)
とし、無機粒子をフイラーとして混合、混練成形
加工された複合材において、該無機粒子が、鉛、
銅、鉄、ニツケルのいずれかの金属又は金属酸化
物、カーボン、グラフアイト、及びこれらの複合
金属粉から選択される１種若しくは２種以上を主
成分とし、かつ該無機粒子は、バインダーとフイ
ラーの混合前に予めコバルト、鉛、ジルコニウ
ム、銅、亜鉛の金属石鹸から選択された少なくと
も１種若しくは２種以上で表面処理し、バインダ
ー100重量部に表面処理した無機粒子200〜1700重
量部を充填したことを特徴とする柔軟性複合材。 ２ 無機粒子が鉄酸化物30〜90wt％、シリカ５
〜30wt％の組成を有するものである特許請求の
範囲第１項記載の柔軟性複合材。 ３ 無機粒子が銅製錬工程で生成する鉄製鉱スラ
グである特許請求の範囲第１項記載の柔軟性複合
材。 ４ 無機粒子に金属石鹸を、金属成分として0.02
〜5wt％該無機粒子表面に担持させた特許請求の
範囲第１項〜第３項のいずれかに記載の柔軟性複
合材。 ５ 塩化ビニル系樹脂若しくはゴムをバインダー
とし、無機粒子をフイラーとして混合、混練成形
加工された複合材において、該無機粒子が、鉛、
銅、鉄、ニツケルのいずれかの金属又は金属酸化
物、カーボン、グラフアイト、及びこれらの複合
金属粉から選択される１種若しくは２種以上を主
成分とし、かつ該無機粒子は、バインダーとフイ
ラーの混合前に予めコバルト、鉛、ジルコニウ
ム、銅、亜鉛の金属石鹸から選択された少なくと
も１種若しくは２種以上で表面処理し、更にシリ
カ粒子若しくはシルカ含有粒子を第２のフイラー
として無機粒子に対し５〜30wt％併用し、バイ
ンダー100重量部に表面処理した無機粒子と第２
のフイラーとを合計で200〜1700重量部充填した
ことを特徴とする柔軟性複合材。 ６ 無機粒子が銅製錬工程で生成する鉄製鉱スラ
グである特許請求の範囲第５項記載の柔軟性複合
材。[Claims] 1. A composite material in which a vinyl chloride resin or rubber is used as a binder and inorganic particles are used as a filler, and the inorganic particles are mixed, kneaded, and molded.
The main component is one or more selected from metals such as copper, iron, and nickel or metal oxides, carbon, graphite, and composite metal powders thereof, and the inorganic particles are a binder and a filler. Before mixing, the surface is treated with at least one or two or more selected from cobalt, lead, zirconium, copper, and zinc metal soaps, and 100 parts by weight of the binder is filled with 200 to 1,700 parts by weight of the surface-treated inorganic particles. A flexible composite material characterized by: 2 Inorganic particles are iron oxide 30-90wt%, silica 5
The flexible composite material according to claim 1, which has a composition of ~30 wt%. 3. The flexible composite material according to claim 1, wherein the inorganic particles are iron ore slag produced in a copper smelting process. 4 Metal soap in inorganic particles, 0.02 as metal component
The flexible composite material according to any one of claims 1 to 3, wherein ~5 wt% is supported on the surface of the inorganic particles. 5. A composite material in which a vinyl chloride resin or rubber is used as a binder and inorganic particles are used as a filler, and the inorganic particles are mixed, kneaded, and molded.
The main component is one or more selected from metals such as copper, iron, and nickel or metal oxides, carbon, graphite, and composite metal powders thereof, and the inorganic particles are a binder and a filler. Before mixing, the surface is treated with at least one or two or more selected from cobalt, lead, zirconium, copper, and zinc metal soaps, and silica particles or silica-containing particles are used as a second filler to treat the inorganic particles. 5 to 30 wt% of surface-treated inorganic particles and 100 parts by weight of binder.
A flexible composite material characterized by being filled with a total of 200 to 1,700 parts by weight of filler. 6. The flexible composite material according to claim 5, wherein the inorganic particles are iron ore slag produced in a copper smelting process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16863985A JPS6233888A (en) | 1985-08-01 | 1985-08-01 | Flexible composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16863985A JPS6233888A (en) | 1985-08-01 | 1985-08-01 | Flexible composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6233888A JPS6233888A (en) | 1987-02-13 |
| JPH0524274B2 true JPH0524274B2 (en) | 1993-04-07 |
Family
ID=15871767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16863985A Granted JPS6233888A (en) | 1985-08-01 | 1985-08-01 | Flexible composite material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6233888A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62199633A (en) * | 1986-02-27 | 1987-09-03 | Nippon Mining Co Ltd | Filler for composite material |
| JPS6366247A (en) * | 1986-09-05 | 1988-03-24 | Toyo Tire & Rubber Co Ltd | Production of rubber composition |
| JPH028239A (en) * | 1988-06-27 | 1990-01-11 | Somar Corp | Vinyl chloride resin composition and molding thereof |
| JP3325600B2 (en) * | 1992-05-01 | 2002-09-17 | 株式会社共和 | Rubber and / or plastic moldings with vibration damping and thermal conductivity |
| CN110817863A (en) * | 2019-12-09 | 2020-02-21 | 歌尔股份有限公司 | Activated carbon sound-absorbing particle and sound-producing device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53121846A (en) * | 1977-03-31 | 1978-10-24 | Matsushita Electric Works Ltd | Vinyl chloride resin composition |
| JPS5865762A (en) * | 1981-10-15 | 1983-04-19 | Mizusawa Ind Chem Ltd | Metallic soap-coated aluminosilicate and production thereof |
-
1985
- 1985-08-01 JP JP16863985A patent/JPS6233888A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53121846A (en) * | 1977-03-31 | 1978-10-24 | Matsushita Electric Works Ltd | Vinyl chloride resin composition |
| JPS5865762A (en) * | 1981-10-15 | 1983-04-19 | Mizusawa Ind Chem Ltd | Metallic soap-coated aluminosilicate and production thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6233888A (en) | 1987-02-13 |
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