JP2002060452A - Method for manufacturing polyurethane foam for sound- absorption/vibration-suppression material - Google Patents
Method for manufacturing polyurethane foam for sound- absorption/vibration-suppression materialInfo
- Publication number
- JP2002060452A JP2002060452A JP2000277272A JP2000277272A JP2002060452A JP 2002060452 A JP2002060452 A JP 2002060452A JP 2000277272 A JP2000277272 A JP 2000277272A JP 2000277272 A JP2000277272 A JP 2000277272A JP 2002060452 A JP2002060452 A JP 2002060452A
- Authority
- JP
- Japan
- Prior art keywords
- foam
- polyol
- polyurethane foam
- sound
- weight
- 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
Landscapes
- Polyurethanes Or Polyureas (AREA)
- Vibration Prevention Devices (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は発泡剤に水を使用し
た成型性に優れる吸音・制振材用ポリウレタンフォーム
の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a polyurethane foam for a sound absorbing and vibration damping material using water as a foaming agent and having excellent moldability.
【０００２】[0002]
【従来の技術】ポリオール、有機イソシアネート、触
媒、整泡剤、その他の助剤、および発泡剤を混合し反応
することにより得られるポリウレタンフォームは原料及
び配合の変更が容易であり、これにより広い範囲にフォ
ーム物性をコントロールすることが出来ることから、多
岐にわたる用途に応用されている。従ってポリウレタン
フォームはその設計で硬質フォーム、軟質フォーム、半
硬質フォーム等と分類され、幅広い性能を有するフォー
ムの製造が可能である。又成型法に従って、スラブフォ
ーム、モールド（注型）フォームなどに分類されてい
る。2. Description of the Related Art Polyurethane foams obtained by mixing and reacting polyols, organic isocyanates, catalysts, foam stabilizers, other auxiliaries, and foaming agents are easy to change in raw materials and blends, thereby allowing a wide range. Since it can control foam properties, it is applied to a wide variety of uses. Accordingly, polyurethane foams are classified by their design into rigid foams, flexible foams, semi-rigid foams, and the like, and foams having a wide range of performance can be produced. Further, according to the molding method, they are classified into slab foam, mold (casting) foam and the like.
【０００３】吸音・制振材は、エネルギー吸収の大きい
材料を使用し、車内やエンジン周りの音の反射を防ぐこ
とによって車内外の騒音を低減する機能を持っている。
そこで吸音・制振材は従来、グラスウール、フェルト、
カーペットなどの繊維材料とポリウレタンフォーム、ポ
リエチレンフォームのような発泡プラスチックス類が使
用されてきた。しかしながらこれら繊維材料、スラブフ
ォーム類では必要形状での連続成型が出来ず、プラスチ
ック類の注型フォームでは表皮が出来ることから要求さ
れる吸音性能を得ることが出来ない。ポリウレタンフォ
ームによる吸音・制振材も提案されているが、フォーム
表面の荒れ、表皮の形成などの問題が生じ、多種の型枠
に連続注型で効率良く生産出来る吸音・制振性能に優れ
た低密度ポリウレタンフォームは未だ得られていない。The sound absorbing / damping material has a function of reducing noise inside and outside the vehicle by using a material having a large energy absorption and preventing reflection of sound inside the vehicle and around the engine.
So, the sound absorbing and vibration damping materials are conventionally made of glass wool, felt,
Fiber materials such as carpet and foamed plastics such as polyurethane foam and polyethylene foam have been used. However, these fibrous materials and slab foams cannot be continuously molded in a required shape, and the cast foams of plastics cannot produce the required sound absorbing performance due to the formation of a skin. Polyurethane foam sound-absorbing and vibration-damping materials have also been proposed, but problems such as roughening of the foam surface and skin formation have occurred, and they have excellent sound-absorbing and vibration-damping properties that can be efficiently produced by continuous casting into various types of molds. Low density polyurethane foam has not yet been obtained.
【０００４】例示すると、特公昭５９−７５４５には間
隙部に緩衝材の充填、ウレタン発泡材の使用で特開昭５
６−２０５１１５、さらには防音・制振作用の向上を目
的に特開昭５０−１２３７９８、特開昭５９−１５４３
３、特開昭６０−９６６１６、特開昭６０−１２０７３
０などで配合検討が、又密度の検討で特開昭５８−２３
８１９、特開昭６０−５１７１０、通気性で特開昭５６
−１４２０２５４、特開昭５６−１４２０２５４、セル
の形状で特開昭５９−９８１２１さらには配合剤の工夫
で特開昭５９−２２６０１４、後加工で特開昭５６−１
５７３４６などがある。また特開平５−２０９０３６に
よるウレタンフォームはポリマー微粒子分散による吸音
性能の向上、特公平７−６４９０８では高分子量ポリオ
ールで官能基数５以上のポリオールの使用、特開平７−
２３３２３６ではスチレン系ポリマーポリオールを使用
した試み、特開平１０−１４９１７１の極性高分子の利
用、特開平１０−１２１５９７の表皮の厚さを検討した
もの、など多くを例示できる。しかしながら、工業的に
安価で提供が出来、しかも軽量化及び省資源の面より低
密度化が出来、多種注型に連続注入で生産の出来るポリ
ウレタン材料を使用した吸音・制振材は得られていな
い。For example, Japanese Patent Publication No. 59-7545 discloses a method of filling a gap portion with a cushioning material and using a urethane foam material.
6-205115, and for the purpose of improving the soundproofing / damping effect, see JP-A-50-123798 and JP-A-59-1543.
3, JP-A-60-96616, JP-A-60-12073
0, etc., and the density was examined.
819, JP-A-60-51710, and
JP-A-14220254, JP-A-56-140254, JP-A-59-98121 in the form of a cell, JP-A-59-226014 by devising a compounding agent, and JP-A-56-1 in post-processing
57346 and the like. In Japanese Patent Application Laid-Open No. Hei 5-20936, urethane foam improves sound absorption performance by dispersing polymer fine particles. In Japanese Patent Publication No. Hei 7-64908, use of a high molecular weight polyol having a functional group of 5 or more is used.
In 233236, many examples can be cited, such as an attempt to use a styrene-based polymer polyol, use of a polar polymer disclosed in JP-A-10-149171, and a study of the thickness of the skin disclosed in JP-A-10-121597. However, a sound-absorbing and vibration-damping material using a polyurethane material that can be provided industrially at a low cost, can be reduced in density in terms of weight reduction and resource saving, and can be produced by continuous injection into various castings has been obtained. Absent.
【０００５】[0005]
【発明が解決しようとする課題】本発明は低密度でしか
も耐熱性を有し、多種の型枠に連続注入生産が可能な、
吸音・制振性能に優れたポリウレタンフォームを得るこ
とにある。しかも発泡剤に水を使用することで水とイソ
シアネートの反応により発生する炭酸ガスを発泡剤と
し、クロロフルオロカーボン等の使用による環境汚染の
ない、安価で工業的に有用な吸音・制振材を得ることに
ある。DISCLOSURE OF THE INVENTION The present invention has low density and heat resistance, and is capable of continuous injection production into various types of molds.
An object of the present invention is to obtain a polyurethane foam having excellent sound absorbing and damping performance. Moreover, by using water as a foaming agent, carbon dioxide generated by the reaction between water and isocyanate is used as a foaming agent, and an inexpensive and industrially useful sound absorbing and damping material free of environmental pollution due to the use of chlorofluorocarbon or the like is obtained. It is in.
【０００６】[0006]
【課題を解決するための手段】本発明者はこれらの問題
解決を図るため鋭意検討の結果、フォームの強度・耐熱
性などウレタンフォームの基本物性、独立気泡率・表皮
の状態等による吸音・制振材用能、連続生産に必要なフ
ォームの充填性、脱型性など工業的に有用な本発明を得
た。すなわちポリオール化合物と有機イソシアネートを
発泡剤としての水、触媒、及び整泡剤などの存在下で反
応させ吸音・制振材用ポリウレタンフォームを製造する
にあたり、官能基数２以上、水酸基価（ＯＨｖ）２０〜
４０ｍｇＫＯＨ／ｇのポリオキシアルキレン系ポリオー
ルを、使用するポリオール１００重量部中６０〜９５重
量部使用し、さらにＯＨｖ７０〜１８０のポリフェノー
ル系ポリオールを５〜２０重量部使用した全ＯＨｖが３
０〜８０のポリオールを使用する。このポリオール成分
１００重量部に対し有機イソシアネート成分を３０〜７
０の範囲で、また発泡剤として水を１．０〜５．０部使
用することを特徴としているポリウレタンフォームであ
る。Means for Solving the Problems The inventors of the present invention have conducted intensive studies in order to solve these problems, and have found that the basic physical properties of urethane foam such as foam strength and heat resistance, the sound absorption and control by the closed cell ratio, the state of the skin, etc. Industrial Applicability The present invention has been obtained, such as the ability to use as a vibration material, the filling property of a foam necessary for continuous production, and the demolding property. That is, when a polyol compound and an organic isocyanate are reacted in the presence of water as a foaming agent, a catalyst, and a foam stabilizer to produce a polyurethane foam for a sound absorbing / damping material, the number of functional groups is 2 or more, and the hydroxyl value (OHv) is 20 or more. ~
A polyoxyalkylene-based polyol of 40 mg KOH / g is used in an amount of 60 to 95 parts by weight based on 100 parts by weight of the polyol to be used, and a polyphenol-based polyol having an OHv of 70 to 180 is used in an amount of 5 to 20 parts by weight.
0-80 polyols are used. The organic isocyanate component is added in an amount of 30 to 7 based on 100 parts by weight of the polyol component.
A polyurethane foam characterized by using water in a range of 0 to 1.0 and 5.0 parts as a foaming agent.
【０００７】さらにポリウレタンフォームの吸音・制振
材はフォームの表面状態の影響が大きいことから、注入
型枠との離型剤として平均分子量４００〜１０００、融
点６５〜１２０℃針入度１０以下のワックスを主成分と
する離型剤を使用することで得られる吸音・制振材の製
造方法である。これにより低密度でしかも耐熱性を有
し、多種の型枠に連続注入での生産が可能であり、フォ
ーム密度が０．０６〜０．１５ｇ／ｃｍ３の吸音・制振
材性能に優れたポリウレタンフォームを得ることができ
る。しかも発泡剤に水を使用することで水とイソシアネ
ートの反応により発生する炭酸ガスを発泡剤とし、クロ
ロフルオロカーボン等の使用による環境汚染のない、安
価で工業的に有用な制振・吸音材を得ることができる。Further, since the sound absorbing and damping material of polyurethane foam is greatly affected by the surface condition of the foam, it has an average molecular weight of 400 to 1000, a melting point of 65 to 120 ° C. and a penetration of 10 or less as a mold release agent for the injection mold. This is a method for producing a sound absorbing and damping material obtained by using a release agent containing wax as a main component. As a result, it has a low density and heat resistance, can be produced by continuous injection into various types of molds, and has excellent sound absorbing and damping material performance with a foam density of 0.06 to 0.15 g / cm 3 . A polyurethane foam can be obtained. Moreover, by using water as a foaming agent, carbon dioxide gas generated by the reaction between water and isocyanate is used as a foaming agent, and a low-cost, industrially useful vibration-damping and sound-absorbing material free of environmental pollution due to the use of chlorofluorocarbon or the like is obtained. be able to.
【０００８】本発明におけるポリオール化合物は官能基
数２以上、水酸基価（ＯＨｖ）２０〜４０ｍｇＫＯＨ／
ｇのポリオキシアルキレン系ポリオールを、使用するポ
リオール１００重量部中６０〜９５重量部、さらにＯＨ
ｖ７０〜１８０のポリフェノール系ポリオールを５〜２
０重量部併用した全ＯＨｖが３０〜８０のポリオールで
ある。全ＯＨｖが３０未満だとフォームの強度等が低下
し、８０以上だとフォーム硬度が高くなり吸音性が悪く
なる。The polyol compound according to the present invention has a functional group of 2 or more and a hydroxyl value (OHv) of 20 to 40 mg KOH /
g of the polyoxyalkylene-based polyol in an amount of 60 to 95 parts by weight based on 100 parts by weight of the polyol to be used.
v70 to 180 of polyphenol polyols of 5-2
A polyol having a total OHv of 30 to 80 used in combination with 0 parts by weight. If the total OHv is less than 30, the strength and the like of the foam will be reduced, and if it is 80 or more, the foam hardness will be high and the sound absorption will be poor.
【０００９】アルキレンオキサイドを付加して得られる
ポリオキシアルキレン系ポリオールは例示すると反応の
開始剤にアドニール、アラビトール、ソルビトール、マ
ンイトール、などのヘキシトール類、グルコース、マン
ノース、ソルボースなどの単糖類、蔗糖、ラクトース、
またグリコシド、エチレングリコール、プロピレングリ
コール、グリセリン、トリメチロールプロパン、ヘキサ
ントリオール、ペンタエルスリトール、などのアルカン
ポリオール、トリグリセリン、ポリグリセリン、ポリペ
ンタエルスリトールなど、また活性水素原子を有するア
ミン類など挙げられるがこれに限定されるものではな
い。これらの活性水素化合物は単独又は２種以上の混合
で使用される。Examples of the polyoxyalkylene polyol obtained by adding an alkylene oxide include hexitols such as adenyl, arabitol, sorbitol, and manitol; monosaccharides such as glucose, mannose and sorbose; sucrose; and lactose. ,
Also, alkane polyols such as glycoside, ethylene glycol, propylene glycol, glycerin, trimethylolpropane, hexanetriol, pentaerthritol, etc., triglycerin, polyglycerin, polypentaerritol, etc., and amines having an active hydrogen atom, etc. Examples include, but are not limited to: These active hydrogen compounds are used alone or in combination of two or more.
【００１０】アルキレンオキサイドの付加反応には例え
ばスチレンオキサイド、ブチレンオキサイド、グリシジ
ルエーテル、ポロピレンオキサイド、エチレンオキサイ
ド、など用いられるが本発明では特にプロピレンオキサ
イド、エチレンオキサイドを単独もしくは併用する。導
入法はブロックでもランダムでも良く、また位置は末端
でも良い。For the addition reaction of alkylene oxide, for example, styrene oxide, butylene oxide, glycidyl ether, propylene oxide, ethylene oxide, etc. are used. In the present invention, propylene oxide and ethylene oxide are particularly used alone or in combination. The introduction method may be block or random, and the position may be terminal.
【００１１】ＯＨｖ７０〜１８０のポリフェノール系ポ
リオールは開始剤として例えばカテコール、レゾルシ
ン、キシレノール、カルバクロール、チモールナフフト
ール、ビスフェノールＡ、水添ビスフェノールＡ等を含
む。ポリオキシアルキレン系ポリオールと同様にアルキ
レンオキサイド類を付加反応して得ることができる。ポ
リフェノール系ポリオールは開始剤の種類を問わず、更
に好ましくはＯＨｖ８０〜１４０の範囲である。Polyphenolic polyols having an OHv of 70 to 180 include, for example, catechol, resorcin, xylenol, carvacrol, thymol naphthol, bisphenol A, hydrogenated bisphenol A and the like as initiators. It can be obtained by an addition reaction of alkylene oxides similarly to the polyoxyalkylene polyol. Regardless of the type of the initiator, the polyphenol-based polyol is more preferably in the range of OHv 80 to 140.
【００１２】ポリイソシアネート化合物は２以上のイソ
シアネート基を有するイソシアネート化合物を使用する
ことが出来る。例えばヘキサメチレンジイソシアネー
ト、水添ジフェニールメタンジイソシアネート、イソホ
ロンジイソシアネート、トルエンジイソシアネート（Ｔ
ＤＩ）、ジフェニルメタンジイソシアネート（ＭＤ
Ｉ）、及びこれらの混合物が挙げられる。これらの粗製
ポリイソシアネート類、さらにこれらの混合物又縮合
物、ポリアリルポリイソシアネート、変性イソシアネー
ト、一部ポリオール変性イソシアネート類などを単独又
は混合使用することが出来る。本発明では特に芳香族系
ポリイソシアネート類が有用であり単独又は混合使用さ
れるが、例示するとポリメリックＭＤＩ、トリレンジイ
ソシアネート（ＴＤＩ）、またはジフェニルメタンジイ
ソシアネート（ＭＤＩ）、ポリメチレンポリフェニルイ
ソシアネート及びこれらのクルード類、さらにプレポリ
マー型、カルボジイミド型、ウレア型、その他の変性体
が含まれ単独又は混合使用される。As the polyisocyanate compound, an isocyanate compound having two or more isocyanate groups can be used. For example, hexamethylene diisocyanate, hydrogenated diphenylmethane diisocyanate, isophorone diisocyanate, toluene diisocyanate (T
DI), diphenylmethane diisocyanate (MD
I), and mixtures thereof. These crude polyisocyanates, their mixtures or condensates, polyallyl polyisocyanates, modified isocyanates, partially polyol-modified isocyanates, etc. can be used alone or in combination. In the present invention, aromatic polyisocyanates are particularly useful and may be used alone or in combination. Examples thereof include polymeric MDI, tolylene diisocyanate (TDI), diphenylmethane diisocyanate (MDI), polymethylene polyphenyl isocyanate and their crudes. And prepolymer type, carbodiimide type, urea type, and other modified products, and may be used alone or in combination.
【００１３】その他ウレタンフォームの製造で一般的に
使用される例えば触媒類、整泡剤、界面活性剤、その他
助剤類、必要によりフィラー類、色素、顔料、可塑剤、
難燃剤、他のポリマー類、微粒子などを添加使用するこ
とも出来る。Other catalysts, foam stabilizers, surfactants, other auxiliaries, fillers, pigments, pigments, plasticizers, if necessary, which are generally used in the production of urethane foam.
Flame retardants, other polymers, fine particles and the like can also be added and used.
【００１４】離型剤については生産効率及び吸音・制振
性能で重要な役割を有する。使用するフォーム原料にイ
ソシアネート基が含まれているため、離型剤には反応性
のある材料、長期に酸化、又は水分を吸着する材料、熱
に弱い材料はイソシアネート基との反応が起こり生産効
率及び吸音・制振材の性能のいずれにも好ましくない。
離型剤成分中には一般的にシリコーン系材料、変性シリ
コーン、ワックス系材料など単独又は混合で使用され
る。ワックス系を例示すると、天然ワックス、石油系ワ
ックス、合成ワックスなどがあげられる。The release agent plays an important role in production efficiency and sound absorption / damping performance. Since the foam material used contains isocyanate groups, the release agent is a reactive material, a material that oxidizes or adsorbs moisture for a long period of time, and a material that is weak to heat reacts with the isocyanate group to produce efficiently. It is not preferable for any of the sound absorbing and vibration damping materials.
In the release agent component, a silicone-based material, a modified silicone, a wax-based material, or the like is generally used alone or as a mixture. Examples of waxes include natural waxes, petroleum waxes, and synthetic waxes.
【００１５】本発明の吸音・制振材用ポリウレタンフォ
ームの製造に使用する離型剤としては平均分子量４００
〜１０００、融点６５〜１２０℃、針入度１０以下のワ
ックス、例えばポリエチレンワックス、ポリプロピレン
ワックス、それら２つの共重合体、及びマイクロクリス
タリン等を主成分とする離型剤を使用することを特徴と
する。また主成分に使用するワックスは非酸化タイプが
望ましい。融点６５℃以下のワックスではフォームの表
面セルが荒れ、また１２０℃以上ではスキン層が発生し
何れも吸音性能が低下する。一般的に微調整作用をさら
にシリコーン物質で行うが、これらの使用を特に限定し
ない。The release agent used in the production of the polyurethane foam for sound absorbing and damping material of the present invention has an average molecular weight of 400.
A wax having a melting point of 65 to 120 ° C. and a penetration of 10 or less, for example, a polyethylene wax, a polypropylene wax, a copolymer of the two, and a release agent containing microcrystalline as a main component. I do. The wax used as the main component is preferably a non-oxidized type. Waxes having a melting point of 65 ° C. or less roughen the surface cells of the foam. Generally, the fine-tuning action is further performed with silicone materials, but their use is not particularly limited.
【００１６】[0016]
【発明の実施の形態】ポリオール、水、触媒、および助
剤は、電動ミキサー、またはスタティックミキサーのよ
うな周知の方法によって、混合しプレミックス液とする
ことができる。得られたプレミックス液は、既存の発泡
機、またはミキサーにて、有機イソシアネートと混合す
ることによりポリウレタンフォームを製造することがで
きるが、ウレタンフォームのための発泡機、またはミキ
サーの種類に限定されず、市販の周知の機器が使用でき
る。本発明では発泡時に注入する金型枠を４５〜６５℃
に加温し、離型剤としてワックスを主成分とした分散液
を、スプレーにて塗布の後にウレタン混合液を注入する
事で、目的とする制振・吸音材を得る。DETAILED DESCRIPTION OF THE INVENTION The polyol, water, catalyst, and auxiliaries can be mixed into a premix liquid by a well-known method such as an electric mixer or a static mixer. The obtained premix liquid can be used to produce a polyurethane foam by mixing it with an organic isocyanate in an existing foaming machine or mixer, but is limited to the type of the foaming machine for urethane foam or the mixer. Instead, a commercially available well-known device can be used. In the present invention, the mold frame injected at the time of foaming is 45 to 65 ° C.
Then, a dispersion liquid containing wax as a main component as a release agent is applied by spraying, and then a urethane mixture is injected to obtain a desired vibration damping / sound absorbing material.
【００１７】[0017]
【実施例】以下実施例により本発明を具体的に説明する
が、本発明はこれに限定されるものではない。表１に実
施例の処方１〜３及び比較例の処方４〜６を示す。それ
ぞれに５００ｃｃ紙製カップに東邦化学工業（株）製ポ
リオール、トリエタノールアミン、水、日本ユニカー
（株）製整泡剤Ｌ−３６０１、活材ケミカル（株）製触
媒ミニコＬ−１０２０を仕込み、十分均一になるよう混
合しプレミックス液とした。プレミックス液の原液温度
は２０℃とした。この中にあらかじめ温度を２０℃に合
わせた三井化学社製イソシアネートＭＣ−８２（ＮＣＯ
％２５．０）を注入し、特殊機化工業製ミキサーによっ
て７０００ｒｐｍの回転速度で５秒間撹拌しアルミ製型
枠に注入し発泡させた。６分後フォームを取り出し翌日
にサンプルを評価した。尚、アルミ製型枠は３００×３
００×１０ｍｍの寸法で、事前に型温を５５℃に調節
し、各々ワックスを炭化水素系溶剤に５ｗｔ％溶解後、
攪拌急冷し作製した離型剤をスプレー塗布し使用した。EXAMPLES The present invention will be described in more detail with reference to the following Examples, but it should not be construed that the present invention is limited thereto. Table 1 shows Formulations 1 to 3 of Examples and Formulations 4 to 6 of Comparative Examples. To each of 500 cc paper cups were charged polyol, triethanolamine, water manufactured by Toho Chemical Industry Co., Ltd., foam stabilizer L-3601 manufactured by Nippon Unicar Co., Ltd., and catalyst Minico L-1020 manufactured by Active Materials Chemical Co., Ltd. The mixture was sufficiently mixed to obtain a premix liquid. The stock solution temperature of the premix solution was 20 ° C. The isocyanate MC-82 (NCO, manufactured by Mitsui Chemicals, Inc.)
% 25.0), and the mixture was stirred at a rotation speed of 7000 rpm for 5 seconds with a mixer manufactured by Tokushu Kika Kogyo Co., Ltd., and injected into an aluminum mold to foam. After 6 minutes, the foam was removed and the next day the sample was evaluated. The aluminum formwork is 300 × 3
With the dimensions of 00 × 10 mm, the mold temperature was previously adjusted to 55 ° C., and each wax was dissolved in a hydrocarbon solvent at 5 wt%,
The release agent produced by stirring and quenching was spray applied and used.
【００１８】[0018]
【表１】 １．ポリオール１）東邦化学工業製グリセリン系ポリオ
ール水酸基価２３ｍｇＫＯＨ／ｇ ２．ポリオール１）東邦化学工業製グリセリン系ポリオ
ール水酸基価３５ｍｇＫＯＨ／ｇ ３．ポリオールＡ：東邦化学工業製ポリフェノール系ポ
リオール水酸基価１４０ｍｇＫＯＨ／ｇ ４．ポリオールＢ：東邦化学工業製ポリフェノール系ポ
リオール水酸基価２８０ｍｇＫＯＨ／ｇ ５．ワックスＡ：東洋ペトロライト製ポリワックス５０
０（分子量５００、融点８６℃）の溶剤分散液 ６．ワックスＢ：１３０°Ｆパラフィンワックス（分子
量３６６、融点 ５５℃）の溶剤分散液 ７．ワックスＣ：アライドシグナル製ＡＣ−６（分子量
２０００、融点１０５℃）の溶剤分散液[Table 1] 1. 1. Polyol 1) Toho Chemical Industry's glycerin-based polyol hydroxyl value 23 mgKOH / g 2. Polyol 1) Toho Chemical Industry's glycerin-based polyol hydroxyl value 35 mgKOH / g 3. Polyol A: Polyphenol polyol having a hydroxyl value of 140 mgKOH / g manufactured by Toho Chemical Industry 4. Polyol B: Polyphenol polyol having a hydroxyl value of 280 mgKOH / g manufactured by Toho Chemical Industry Wax A: Polywax 50 made by Toyo Petrolite
5. Solvent dispersion having a molecular weight of 0 (molecular weight: 500, melting point: 86 ° C.) 6. Wax B: solvent dispersion of 130 ° F paraffin wax (molecular weight 366, melting point 55 ° C) Wax C: Solvent dispersion of Allied Signal AC-6 (molecular weight 2000, melting point 105 ° C)
【００１９】評価方法 得られたフォームの性能は次の方法により評価した。 １．フォーム物性はＪＩＳ Ｋ−６３０１に準じて測定
した。 ２．生産性の評価は○：良好△：やや劣る×：悪い と
した。 ３．吸音率は２５００Ｈｚでの垂直入射吸音率（ＪＩＳ
Ａ １４０５）を測定した。Evaluation method The performance of the obtained foam was evaluated by the following method. 1. The foam properties were measured according to JIS K-6301. 2. Productivity was evaluated as ：: good Δ: slightly poor ×: bad. 3. The sound absorption coefficient is the normal incidence sound absorption coefficient at 2500 Hz (JIS
A 1405) was measured.
【００２０】[0020]
【発明の効果】本発明による方法、すなわち水を発泡剤
に使用し、特定ポリオールの選定と組み合わせによるウ
レタン組成にて、フォーム表面のセル荒れ、スキン層の
形成を抑制すべく、限定した離型剤を使用して成型する
ことで得られる吸音・制振材は、吸音性能が良好で、強
度・耐熱性などウレタンフォームの基本物性に優れ、連
続生産に必要なフォームの充填性、脱型性などが工業生
産に適している。これにより、吸音・制振材の低コスト
化、軽量化が図れ、自動車エンジンルーム周りに装着す
る材料として、また騒音、振動などの防止を目的に幅広
い応用を可能とした。According to the method of the present invention, that is, water is used as a foaming agent, and a specific release is carried out in order to suppress cell roughness on the foam surface and formation of a skin layer by a urethane composition obtained by selecting and combining a specific polyol. The sound-absorbing and vibration-damping material obtained by molding using a foaming agent has excellent sound-absorbing performance, excellent urethane foam basic properties such as strength and heat resistance, and foam filling and demolding properties required for continuous production. Are suitable for industrial production. As a result, the cost and weight of the sound absorbing and damping material can be reduced, and the material can be widely applied as a material to be mounted around an automobile engine room and to prevent noise and vibration.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｆ１６Ｆ 15/02 Ｆ１６Ｆ 15/02 Ｑ //(Ｃ０８Ｇ 18/48 (Ｃ０８Ｇ 18/48 101:00） 101:00） Ｂ２９Ｋ 75:00 Ｂ２９Ｋ 75:00 105:04 105:04 Ｆターム(参考） 3J048 BD04 BD07 EA07 4F202 AA42 AB02 AG20 CA01 CB01 CM42 CM83 4F204 AA42 AB02 AG20 EA01 EB01 EK24 4J034 BA03 DA01 DB04 DB05 DB07 DC02 DC06 DC12 DC35 DC43 DC50 DG03 DG04 DG10 DG12 DG15 DG16 HA01 HC03 HC12 HC16 HC17 HC22 HC46 HC52 HC61 HC64 HC65 HC67 HC71 HC73 MA24 MA26 NA03 QA02 QC01 RA15 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) F16F 15/02 F16F 15/02 Q // (C08G 18/48 (C08G 18/48 101: 00) 101: 00) B29K 75:00 B29K 75:00 105: 04 105: 04 F term (reference) 3J048 BD04 BD07 EA07 4F202 AA42 AB02 AG20 CA01 CB01 CM42 CM83 4F204 AA42 AB02 AG20 EA01 EB01 EK24 4J034 BA03 DA01 DB04 DB05 DB07 DC02 DC06 DC12 DC35 DC43 DC50 DG03 DG04 DG10 DG12 DG15 DG16 HA01 HC03 HC12 HC16 HC17 HC22 HC46 HC52 HC61 HC64 HC65 HC67 HC71 HC73 MA24 MA26 NA03 QA02 QC01 RA15
Claims (5)
を触媒、発泡剤、及び整泡剤などの存在下で反応させ、
金型枠に平均分子量４００〜１０００、融点６５〜１２
０℃針入度１０以下のワックスを主成分とする離型剤を
使用して成型する、吸音・制振材用ポリウレタンフォー
ムの製造方法。Claims: 1. A polyol compound and an organic isocyanate are reacted in the presence of a catalyst, a foaming agent, a foam stabilizer and the like,
Average molecular weight 400-1000, melting point 65-12 in mold
A method for producing a polyurethane foam for a sound absorbing / damping material, which is molded using a release agent containing wax as a main component having a penetration of 0 ° C. or less.
０〜４０ｍｇＫＯＨ／ｇのポリオキシアルキレン系ポリ
オールを、使用するポリオール１００重量部中６０〜９
５重量部、ＯＨｖ ７０〜１８０のポリフェノール系ポ
リオールを５〜２０重量部使用し、ポリオールの全ＯＨ
ｖが３０〜８０である請求項１の吸音・制振材用ポリウ
レタンフォームの製造方法。2. A compound having a functional group number of 2 or more and a hydroxyl value (OHv) of 2
A polyoxyalkylene-based polyol of 0 to 40 mgKOH / g is used in an amount of 60 to 9 per 100 parts by weight of the polyol to be used.
5 parts by weight, 5 to 20 parts by weight of a polyphenol-based polyol having an OHv of 70 to 180,
The method for producing a polyurethane foam for a sound absorbing / damping material according to claim 1, wherein v is 30 to 80.
分の使用比率がポリオール成分１００重量部に対し有機
イソシアネート成分が３０〜７０の範囲である請求項
１、請求項２の吸音・制振材用ポリウレタンフォームの
製造方法。3. The polyurethane foam for a sound absorbing and vibration damping material according to claim 1, wherein the usage ratio of the polyol component to the organic isocyanate component is in the range of 30 to 70 with respect to 100 parts by weight of the polyol component. Production method.
剤として水を１．０〜５．０部使用することを特徴とす
る請求項１〜３の吸音・制振材用ポリウレタンフォーム
の製造方法。4. The method for producing a polyurethane foam for a sound absorbing / damping material according to claim 1, wherein 1.0 to 5.0 parts of water is used as a foaming agent per 100 parts by weight of the polyol component.
ｃｍ３の範囲である請求項１〜４に記載の吸音・制振材
用ポリウレタンフォームの製造方法。5. A foam density of 0.06 to 0.15 g /
method for producing a sound absorbing and sound damping material for polyurethane foam according to claim 1 in the range of cm 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000277272A JP2002060452A (en) | 2000-08-10 | 2000-08-10 | Method for manufacturing polyurethane foam for sound- absorption/vibration-suppression material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000277272A JP2002060452A (en) | 2000-08-10 | 2000-08-10 | Method for manufacturing polyurethane foam for sound- absorption/vibration-suppression material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002060452A true JP2002060452A (en) | 2002-02-26 |
Family
ID=18762628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000277272A Pending JP2002060452A (en) | 2000-08-10 | 2000-08-10 | Method for manufacturing polyurethane foam for sound- absorption/vibration-suppression material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002060452A (en) |
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| JP2007045143A (en) * | 2005-07-15 | 2007-02-22 | Toyo Tire & Rubber Co Ltd | Manufacturing method of laminated sheet and laminated sheet |
| JP2007245571A (en) * | 2006-03-16 | 2007-09-27 | Toyo Tire & Rubber Co Ltd | Laminated sheet and its manufacturing method |
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| US8318298B2 (en) | 2005-07-15 | 2012-11-27 | Toyo Tire & Rubber Co., Ltd. | Layered sheets and processes for producing the same |
| JP2007045143A (en) * | 2005-07-15 | 2007-02-22 | Toyo Tire & Rubber Co Ltd | Manufacturing method of laminated sheet and laminated sheet |
| US7927452B2 (en) | 2005-07-15 | 2011-04-19 | Toyo Tire & Rubber Co., Ltd. | Layered sheets and processes for producing the same |
| WO2007010766A1 (en) * | 2005-07-15 | 2007-01-25 | Toyo Tire & Rubber Co., Ltd. | Layered sheets and processes for producing the same |
| US9126303B2 (en) | 2005-08-30 | 2015-09-08 | Toyo Tire & Rubber Co., Ltd. | Method for production of a laminate polishing pad |
| JP2007245571A (en) * | 2006-03-16 | 2007-09-27 | Toyo Tire & Rubber Co Ltd | Laminated sheet and its manufacturing method |
| JP2007245575A (en) * | 2006-03-16 | 2007-09-27 | Toyo Tire & Rubber Co Ltd | Laminate sheet |
| US8167690B2 (en) | 2006-09-08 | 2012-05-01 | Toyo Tire & Rubber Co., Ltd. | Polishing pad |
| JP2008082550A (en) * | 2006-09-25 | 2008-04-10 | Automotive Components Holdings Llc | Adjustable damper for torque transmission assembly |
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| US8602846B2 (en) | 2007-01-15 | 2013-12-10 | Toyo Tire & Rubber Co., Ltd. | Polishing pad and a method for manufacturing the same |
| US8476328B2 (en) | 2008-03-12 | 2013-07-02 | Toyo Tire & Rubber Co., Ltd | Polishing pad |
| KR100952597B1 (en) | 2009-09-12 | 2010-04-15 | 김용규 | Method and apparatus for bonding halogen free insulated wires |
| JP2013246182A (en) * | 2012-05-23 | 2013-12-09 | Inoac Corp | Sound insulation material and manufacturing method thereof |
| CN105246934A (en) * | 2013-06-07 | 2016-01-13 | 科思创德国股份公司 | Elastic rigid foam having improved temperature stability |
| CN103753741A (en) * | 2013-12-27 | 2014-04-30 | 上海古猿人石材有限公司 | Release agent for polyurethane rubber mold of cultured stone and utilization method of release agent |
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