JPS6369741A - Flexible sound isolator - Google Patents
Flexible sound isolatorInfo
- Publication number
- JPS6369741A JPS6369741A JP61216680A JP21668086A JPS6369741A JP S6369741 A JPS6369741 A JP S6369741A JP 61216680 A JP61216680 A JP 61216680A JP 21668086 A JP21668086 A JP 21668086A JP S6369741 A JPS6369741 A JP S6369741A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- specific gravity
- sound insulating
- vinyl acetate
- insulating material
- 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.)
- Granted
Links
- 230000005484 gravity Effects 0.000 claims description 28
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 22
- 239000000945 filler Substances 0.000 claims description 22
- 239000011810 insulating material Substances 0.000 claims description 18
- 239000002893 slag Substances 0.000 claims description 15
- 239000012141 concentrate Substances 0.000 claims description 12
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 12
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 11
- 229920001971 elastomer Polymers 0.000 claims description 10
- 239000005060 rubber Substances 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 238000003723 Smelting Methods 0.000 claims description 8
- 150000002611 lead compounds Chemical class 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 239000006227 byproduct Substances 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 6
- 229920000459 Nitrile rubber Polymers 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 4
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 claims description 2
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 2
- 239000000463 material Substances 0.000 description 9
- 239000012774 insulation material Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 8
- 239000011230 binding agent Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 239000000203 mixture Substances 0.000 description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 229910000464 lead oxide Inorganic materials 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- YADSGOSSYOOKMP-UHFFFAOYSA-N dioxolead Chemical compound O=[Pb]=O YADSGOSSYOOKMP-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- MFEVGQHCNVXMER-UHFFFAOYSA-L 1,3,2$l^{2}-dioxaplumbetan-4-one Chemical compound [Pb+2].[O-]C([O-])=O MFEVGQHCNVXMER-UHFFFAOYSA-L 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229910000003 Lead carbonate Inorganic materials 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- -1 etc. Inorganic materials 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910003439 heavy metal oxide Inorganic materials 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- PIJPYDMVFNTHIP-UHFFFAOYSA-L lead sulfate Chemical compound [PbH4+2].[O-]S([O-])(=O)=O PIJPYDMVFNTHIP-UHFFFAOYSA-L 0.000 description 1
- 229940056932 lead sulfide Drugs 0.000 description 1
- 229910052981 lead sulfide Inorganic materials 0.000 description 1
- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 description 1
- 229910021514 lead(II) hydroxide Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Building Environments (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、銅製錬工程で副生する鉄精鉱スラグを有効に
利用して、粉末状鉛化合物と混合し高比重の遮音用充填
剤とし、該充填剤を良好に分散させる液状ゴムを用いて
、加工性と柔軟性を改良した遮音材に関する。Detailed Description of the Invention (Field of Industrial Application) The present invention effectively utilizes iron concentrate slag, a by-product of the copper smelting process, and mixes it with a powdered lead compound to create a high-density sound-insulating filler. The present invention relates to a sound insulating material which has improved workability and flexibility by using a liquid rubber that can disperse the filler well.
（従来技術）
騒音には、自動車、列車、航空機などの交通騒音のほか
、工場、学校、公園、球技場などの近隣施設、近隣住宅
からの外部発生のものと同一住宅内で発生する内部的な
ものがある。テレビ、ステレオ、ピアノなどの音楽騒音
もまた住宅地域内では深刻な社会問題となっている。こ
れらの騒音に対して遮断効果の高い遮音材を得るために
は、遮音しようとする材料の面密度に比例する遮音の質
量刑（Ｔ Ｌ ＝ａ ｌｏｇ ｍｆ ＋ｂ、ＴＬは透過
損失（ｄＢ）、ｍは面密度（ｋｇ／ｍ”）、ｆは周波数
（Ｈｚ）、ａ、ｂは定数〕が適用されることから、比重
の大きい充填剤を加工性の良好なバインダー材中に混入
する必要がある。従って、遮音材は、比重の大きい充填
材を有機質バインダー材中に混入することによって、柔
軟性を付与し、遮音材の比重を大きくして遮音効果が高
められるようにされる。ところが、熱可塑性有機質バイ
ンダー材中に、粒径が小さく比重の大きい充填剤を大量
に混入させる場合、その均一充填が困難であるほか、バ
インダー材のマトリックスが極端に希釈されるため、機
械的強度、伸びなどが不足すると共に、バインダー自体
に良好充填保持能がないために見掛けの充填状態を呈す
るものとなる。すなわち、得られる遮音材は、接触や振
動、切断、曲げなどによって充填剤が脱落し、遮音材の
機能が低下するという問題がある。又、充填剤としては
、通常比重の大きい重金属粉、重金属の酸化物、炭酸塩
又は硫酸塩パライト、酸化鉄スラグなどが使用されてい
る。しかし、金属粉、金属酸化物などは、比重が高くて
好ましいが、価格が高いため、遮音材自体が高価となり
、一般建材用の普及に難があるので、安価な高比重の遮
音材が望まれてい゛る。(Prior art) Noise includes traffic noise such as cars, trains, and airplanes, as well as external noise from nearby facilities such as factories, schools, parks, and ball fields, and internal noise generated within the same residence. There is something. Musical noise from televisions, stereos, pianos, etc. is also a serious social problem in residential areas. In order to obtain a sound insulating material that has a high blocking effect against these noises, the mass reduction of the sound insulating material is proportional to the areal density of the material to be sound insulated (TL = a log mf + b, TL is transmission loss (dB), m is areal density (kg/m"), f is frequency (Hz), and a and b are constants], it is necessary to mix a filler with a large specific gravity into a binder material with good workability. Therefore, the sound insulation material is made flexible by mixing a filler with a high specific gravity into an organic binder material, and the specific gravity of the sound insulation material is increased to enhance the sound insulation effect.However, When a large amount of filler with small particle size and high specific gravity is mixed into a thermoplastic organic binder material, it is difficult to fill it uniformly, and the matrix of the binder material is extremely diluted, resulting in poor mechanical strength and elongation. In addition, the binder itself does not have a good filling retention ability, so it exhibits an apparent filling state.In other words, the resulting sound insulating material is caused by the filler falling off due to contact, vibration, cutting, bending, etc. There is a problem that the function of the sound insulation material deteriorates.In addition, heavy metal powders with high specific gravity, heavy metal oxides, carbonate or sulfate pallite, iron oxide slag, etc. are usually used as fillers.However, Metal powders, metal oxides, etc. are preferable because they have a high specific gravity, but their high price makes the sound insulating material itself expensive, making it difficult for them to be widely used as general building materials.Therefore, a low-cost sound insulating material with a high specific gravity is desired. It's true.
一方、騒音防止用の遮音材のバインダー材は、大部分が
可燃性物質を使用しているため、火炎に接して一旦燃焼
すると多量の黒煙と有害ガスを発生し、火災時の消火活
動や誘導遊離に支障をきたすという問題がある。On the other hand, most of the binder materials used in sound insulation materials for noise prevention use flammable materials, so once they come into contact with flames and burn, they generate a large amount of black smoke and harmful gases, making it difficult to extinguish fires in the event of a fire. There is a problem in that it interferes with induced release.
（発明が解決しようとする問題点）
上記の問題点を解決するためには、■使用する充填剤は
、比重が高く、安価で熱的安定性があり、■火災に際し
て有害ガスの発生がなく、■火災時に発生する煙量が大
巾に低減でき、■充填剤の脱落がなく、加工性に冨み、
柔軟性にすぐれた高比重（３，０以上）の遮音材を得る
ことである。(Problems to be Solved by the Invention) In order to solve the above problems, ■ The filler used must have a high specific gravity, be inexpensive, and be thermally stable, and ■ Will not generate harmful gases in the event of a fire. , ■ The amount of smoke generated in the event of a fire can be greatly reduced, ■ There is no drop-off of the filler, and it is highly workable.
The objective is to obtain a sound insulating material with excellent flexibility and high specific gravity (3.0 or more).
本発明は、上記の課題を解決することを目的とするもの
で高比重の柔軟性遮音材を提供するものである。The present invention aims to solve the above problems and provides a flexible sound insulating material with high specific gravity.
（問題点を解決するための手段）
本発明者らは、かかる目的を解決するために鋭意検討を
重ねた結果、本発明を完成させたものである。(Means for Solving the Problems) The present inventors have completed the present invention as a result of intensive studies to solve the above objects.
本発明の構成は、エチレン酢酸ビニル共重合体１００重
量部に対して、銅製錬工程で副生ずる鉄精鉱スラグと粉
末状鉛化合物を混合して比重４．３以上とする遮音用充
填剤４００〜１５００重量部および液状ゴム１０〜７０
重量部を配合してなることを特徴とするものである。The structure of the present invention is to mix 100 parts by weight of ethylene-vinyl acetate copolymer with iron concentrate slag, which is a by-product in the copper smelting process, and a powdered lead compound to give a sound insulation filler 400 with a specific gravity of 4.3 or more. ~1500 parts by weight and 10-70 parts of liquid rubber
It is characterized in that it contains parts by weight.
以下、本発明にかかる遮音材の配合組成物について、更
に詳細に説明する。Hereinafter, the composition of the sound insulation material according to the present invention will be explained in more detail.
本発明で使用するエチレン酢酸ビニル共重合体とは、酢
酸ビニル含有量が１５重量％以上のであって、好ましく
は３０〜６０重量％である。The ethylene vinyl acetate copolymer used in the present invention has a vinyl acetate content of 15% by weight or more, preferably 30 to 60% by weight.
酢酸ビニル含有量が１５重量％未満では、本発明で使用
する比重４．３以上とする遮音用充填剤を高充填するこ
とができないため、目的とする高比重の遮音材が得られ
ないので好ましくない。If the vinyl acetate content is less than 15% by weight, it is not possible to highly fill the sound insulating filler with a specific gravity of 4.3 or more used in the present invention, and therefore the desired sound insulating material with a high specific gravity cannot be obtained. do not have.
本発明で使用する銅製錬工程で副生ずる鉄精鉱スラグと
は、銅製錬工程の自溶炉から得られるマントを、転炉で
二酸化ケイ素と酸素を添加してシリケート化と酸化を行
なって、生成するスラグを磁選し、得られたスラグを浮
ｔｔ選鉱して銅精鉱を回収した後の残物を脱水して得ら
れる鉄精鉱スラグである。該鉄精鉱スラグの化学組成例
は、２ＦｅＯ−３ｉＯｚ（ＦｅＯとして４０〜５０重量
％、５ｉ０２として１５〜３０重量％） 、Ｆｅ：＋０
４１０〜３０重量％、Ｆｅ２Ｏ３５重量％、Ｍｇ０５重
量％以下であって、ＣａＯは殆ど含有しない。該鉄精鉱
スラグは、銅製錬工程で得られる副生物であるから、安
価であり、大量に生成される。The iron concentrate slag produced as a by-product in the copper smelting process used in the present invention is obtained by adding silicon dioxide and oxygen to the mantle obtained from the flash furnace of the copper smelting process in a converter to silicate and oxidize it. This iron concentrate slag is obtained by magnetically separating the generated slag, floating the obtained slag to recover copper concentrate, and dehydrating the residue. An example of the chemical composition of the iron concentrate slag is 2FeO-3iOz (40 to 50% by weight as FeO, 15 to 30% by weight as 5i02), Fe: +0
410 to 30% by weight, 35% by weight of Fe2O, 05% by weight of Mg, and almost no CaO. Since the iron concentrate slag is a by-product obtained in the copper smelting process, it is inexpensive and produced in large quantities.
しかも浮遊選鉱を経たものであり、好都合にも破砕粒子
である。該スラグのかさ密度は、３〜４であり、比重は
４〜４．２であるから遮音材の充填剤としては好ましい
ものである。本発明で使用する鉄精鉱スラグの粒度は１
００メソシユ以下が好ましく、特に２００メソシユ以下
がより好ましい。Furthermore, it has undergone flotation and is conveniently crushed particles. Since the slag has a bulk density of 3 to 4 and a specific gravity of 4 to 4.2, it is preferable as a filler for sound insulation materials. The particle size of the iron concentrate slag used in the present invention is 1
It is preferably 0.00 mesoyu or less, and particularly preferably 200 mesoyu or less.
本発明で使用する粉末状鉛化合物とは、−酸化鉛、水酸
化鉛、四三酸化鉛、三重酸化鉛、二酸化鉛、亜酸化鉛、
へ五酸化鉛、炭酸鉛、硫酸鉛、硫化鉛などであって、特
に−酸化鉛、亜酸化鉛が高比重で好ましい。粉末状鉛化
合物の粒度は、０．５〜１００μｍ程度のものが好まし
い。The powdered lead compounds used in the present invention are - lead oxide, lead hydroxide, trilead tetraoxide, triple lead oxide, lead dioxide, lead zinc oxide,
Lead pentoxide, lead carbonate, lead sulfate, lead sulfide, etc., and lead oxide and zinc oxide are particularly preferred because of their high specific gravity. The particle size of the powdered lead compound is preferably about 0.5 to 100 μm.
比重４．３以上とする遮音用充填剤は、例えば比重４〜
４．２の銅製錬工程で副生ずる鉄精鉱スラグ粉末と比重
９．３の一酸化鉛を配合することによって容易に得られ
る。この場合、鉄精鉱スラグ粉末の粒径は、粉末状鉛化
合物の粒径より大きいから、両者を混合すると、大きい
粒径間の空隙部に小さい粒径の粉末状鉛化合物が入り込
み、均一に混合されて、かさ密度は低下し高比重のもの
が得られる。A sound insulating filler having a specific gravity of 4.3 or more is, for example, a specific gravity of 4 to 4.
It can be easily obtained by blending iron concentrate slag powder, which is a by-product in the copper smelting process in 4.2, and lead monoxide with a specific gravity of 9.3. In this case, the particle size of the iron concentrate slag powder is larger than the particle size of the powdered lead compound, so when the two are mixed, the powdered lead compound of smaller particle size enters the void between the larger particle sizes and is uniformly distributed. When mixed, the bulk density is reduced and a product with high specific gravity is obtained.
前記、遮音用充填剤の配合量は、エチレン酢酸ビニル共
重合体１００重量部に対して、４００〜１５００重量部
の範囲であり、好ましくは５００〜１３００重量部であ
る。遮音用充填剤の配合量が４００重量部未満でば、目
的とする高比重（３，０以上）の遮音材が得られないの
で、好ましくない。The amount of the sound insulating filler is in the range of 400 to 1,500 parts by weight, preferably 500 to 1,300 parts by weight, based on 100 parts by weight of the ethylene-vinyl acetate copolymer. If the amount of the sound insulating filler is less than 400 parts by weight, it is not preferable because a sound insulating material with the desired high specific gravity (3.0 or more) cannot be obtained.
逆に、１５００重量部を超えるときは、混練りの加工性
が悪く、得られる遮音材は柔軟性を欠き、機械的強度が
低下するので好ましくない。On the other hand, if it exceeds 1,500 parts by weight, the kneading processability is poor and the resulting sound insulating material lacks flexibility and mechanical strength is reduced, which is not preferable.
本発明に使用する液状ゴムは、液状クロロブレンゴム（
ＬＣＲ）、ブタジェンアクリロニトリルゴム（ＮＢＲ）
、スチレンブタジェンゴム（Ｓ Ｂ Ｒ）などであっ
て、エチレン酢酸ビニル共重合体を柔かく改質すると共
に、前記に述べた比重４．３以上とする遮音用充填剤の
充填をなじみやす（して高充填させるため、エチレン酢
酸ビニル共重合体と併用して配合する。The liquid rubber used in the present invention is liquid chloroprene rubber (
LCR), butadiene acrylonitrile rubber (NBR)
, styrene-butadiene rubber (SBR), etc., which modify the ethylene-vinyl acetate copolymer to make it softer and make it easier to fill with the sound-insulating filler having a specific gravity of 4.3 or more. It is blended together with ethylene vinyl acetate copolymer to achieve high filling.
特に、ＬＣＲの分子量１５００〜２５００範囲のものが
、ＮＢＲは日本セオン■のハイカー１３１２が好ましい
ものとして用いられる。In particular, LCR with a molecular weight in the range of 1,500 to 2,500 is preferably used, and NBR is preferably Hiker 1312 from Nippon Seon ■.
液状ゴムの配合量は、エチレン酢酸ビニル共重合体１０
０重量部に対して、１０〜７０重量部の範囲であり、好
ましくは１５〜４０重量部である。液状ゴムの配合量が
１０重量部未満では、遮音用充填剤の高充填が困難とな
り、好ましくない。逆に、７０重量部を超えるときは、
粘着性が増加して遮音材シートのロール離れが困難とな
り、シート出しの加工性が劣るので好ましくない。The amount of liquid rubber compounded is 10% of ethylene vinyl acetate copolymer.
The amount is in the range of 10 to 70 parts by weight, preferably 15 to 40 parts by weight. If the amount of liquid rubber blended is less than 10 parts by weight, it becomes difficult to fill the sound insulating filler to a high level, which is not preferable. On the other hand, when it exceeds 70 parts by weight,
This is not preferable because the tackiness increases, making it difficult to separate the sound insulating material sheet from the roll, and resulting in poor sheet-unrolling processability.
なお、本発明にかかる配合組成物に可塑剤をエチレン酢
酸ビニル共重合体に配合すると、配合初期のロールへの
巻付性が良好となる。勿論エチレン酢酸ビニル共重合体
単独でもよい。In addition, when a plasticizer is blended with the ethylene-vinyl acetate copolymer in the blended composition according to the present invention, the windability around a roll at the initial stage of blending becomes better. Of course, ethylene vinyl acetate copolymer alone may be used.
（実施例）
以下、実施例および比較例にもとづいて本発明を更に詳
細に説明するが、本発明はかかる実施例のみに限定され
るものでない。(Examples) Hereinafter, the present invention will be explained in more detail based on Examples and Comparative Examples, but the present invention is not limited only to these Examples.
第１表に示す実施例と比較例の配合組成物を８吋オープ
ンロールで１５０〜ｂ
〜１５分間混練りし、中２００ｍｍ、厚さ約１１の各シ
ートを作製した。各シートについて以下に示す緒特性を
調べた結果を第１表に併記した。The blended compositions of Examples and Comparative Examples shown in Table 1 were kneaded using an 8-inch open roll for 150 to 15 minutes to produce sheets with a medium diameter of 200 mm and a thickness of about 11 mm. Table 1 also shows the results of examining the following characteristics for each sheet.
比 重：遮音性は材料の密度に大きく依存するので、比
重で遮音性の評価をした。Specific gravity: Since sound insulation depends largely on the density of the material, sound insulation was evaluated based on specific gravity.
柔軟性：作製したシートから３０Ｘ７０Ｘ１ｍｍの試験
片を打ち抜き、この試験片
を１８０度折り曲げて柔軟性を調べ
た。Flexibility: A test piece of 30 x 70 x 1 mm was punched out from the prepared sheet, and the test piece was bent 180 degrees to examine its flexibility.
○印：クランク割れを生じないもの
×印：クランク割れを生じるもの
加工性：実施例、比較例の各配合組成物を８吋オープン
ロールで１５０〜ｂ
ロールへの巻付性、ベタツキ性、充
填剤の充填性を調べて評価した。○: No cracking of the crank X: Cracking of the crank Processability: Each compounded composition of Examples and Comparative Examples was rolled on an 8-inch open roll at 150 to 150 b Rollability, stickiness, and filling The fillability of the agent was examined and evaluated.
○印：加工性がよいもの
△印：加工性がややわるいもの
×印：加工性がわるいもの
結果かられかるように、実施例１〜５は、本発明に使用
する特定の配合材料が適切に組合されているので、遮音
材の比重が３．０２〜４．４３の範囲にあって良好な遮
音性を示すと共に柔軟性、加工性も良好なものとなる。○: Good processability △: Slightly poor processability Since the specific gravity of the sound insulating material is in the range of 3.02 to 4.43, it exhibits good sound insulating properties and also has good flexibility and workability.
次に、比較例１は遮音用充填剤量が適切でないため、得
られる遮音材の比重が３．θ以下となり、好ましくない
。比較例２は、遮音用充填剤量が多いため、柔軟性が著
しく低下し、好ましくない。比較例３は、エチレン酢酸
ビニル共重合体の酢酸ビニル含有量が低いため、遮音用
充填剤を高充填できないので好ましくない。比較例４は
、液状ＮＢＲ量が多いため、加工性を低下させる。Next, in Comparative Example 1, the amount of sound insulation filler was not appropriate, so the specific gravity of the resulting sound insulation material was 3. θ or less, which is not preferable. In Comparative Example 2, the amount of sound insulating filler is large, so the flexibility is significantly reduced, which is not preferable. Comparative Example 3 is not preferable because the vinyl acetate content of the ethylene-vinyl acetate copolymer is low, making it impossible to highly fill the sound insulating filler. In Comparative Example 4, the amount of liquid NBR is large, so the processability is reduced.
（発明の効果）
以上、説明した如く、本発明にかかる柔軟性遮音材は、
有機質バインダー材にエチレン酢酸ビニル共重合体を使
用しているので、火災に際して煙量が少なく、又、銅製
錬工程で副生ずる鉄精鉱スラグを有効に利用して、資源
の再活用により原材料の軽減をはかり、粉末状鉛化合物
と混合して高比重の遮音用充填剤として高比重の柔軟性
遮音材を安価に供給することができるので、広範囲の建
材用遮音材として利用できる効果が大きい。(Effect of the invention) As explained above, the flexible sound insulation material according to the present invention has the following features:
Ethylene-vinyl acetate copolymer is used as the organic binder material, so there is little smoke in the event of a fire, and iron concentrate slag, which is a by-product of the copper smelting process, is effectively used to reuse raw materials. It is possible to supply a high specific gravity flexible sound insulating material at a low cost by mixing it with a powdered lead compound and using it as a high specific gravity sound insulating filler, so it is highly effective in being able to be used as a sound insulating material for a wide range of building materials.
Claims (3)
て、銅製錬工程で副生する鉄精鉱スラグと粉末状鉛化合
物を混合して比重４．３以上とする遮音用充填剤４００
〜１５００重量部および液状ゴム１０〜７０重量部配合
して成ることを特徴とする柔軟性遮音材。(1) Sound insulation filler 400 made by mixing 100 parts by weight of ethylene-vinyl acetate copolymer with iron concentrate slag, a by-product of the copper smelting process, and a powdered lead compound to give a specific gravity of 4.3 or more.
1. A flexible sound insulating material comprising: ~1,500 parts by weight of liquid rubber and 10 to 70 parts by weight of liquid rubber.
が１５重量％以上である特許請求の範囲第１項記載の柔
軟性遮音材。(2) The flexible sound insulating material according to claim 1, wherein the vinyl acetate content of the ethylene vinyl acetate copolymer is 15% by weight or more.
アクリロニトリルラバー又はスチレンブタジェンラバー
の１種以上である特許請求の範囲第１項記載の柔軟性遮
音材。(3) The flexible sound insulating material according to claim 1, wherein the liquid rubber is one or more of liquid chloroprene rubber, butadiene acrylonitrile rubber, or styrene butadiene rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61216680A JPS6369741A (en) | 1986-09-12 | 1986-09-12 | Flexible sound isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61216680A JPS6369741A (en) | 1986-09-12 | 1986-09-12 | Flexible sound isolator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6369741A true JPS6369741A (en) | 1988-03-29 |
| JPH0460065B2 JPH0460065B2 (en) | 1992-09-25 |
Family
ID=16692241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61216680A Granted JPS6369741A (en) | 1986-09-12 | 1986-09-12 | Flexible sound isolator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6369741A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408808A (en) * | 2013-08-05 | 2013-11-27 | 天津静达保光汽车零部件有限公司 | Automobile paste high-expansion vibration-reduction and sound-insulation rubber and manufacturing process thereof |
-
1986
- 1986-09-12 JP JP61216680A patent/JPS6369741A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408808A (en) * | 2013-08-05 | 2013-11-27 | 天津静达保光汽车零部件有限公司 | Automobile paste high-expansion vibration-reduction and sound-insulation rubber and manufacturing process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0460065B2 (en) | 1992-09-25 |
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