JP2782362B2 - Baking dry paint for vibration damping - Google Patents
Baking dry paint for vibration dampingInfo
- Publication number
- JP2782362B2 JP2782362B2 JP20945289A JP20945289A JP2782362B2 JP 2782362 B2 JP2782362 B2 JP 2782362B2 JP 20945289 A JP20945289 A JP 20945289A JP 20945289 A JP20945289 A JP 20945289A JP 2782362 B2 JP2782362 B2 JP 2782362B2
- Authority
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- Japan
- Prior art keywords
- weight
- parts
- coating
- damping
- vibration damping
- 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.)
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Description
【発明の詳細な説明】 A.発明の目的 （１）産業上の利用分野 本発明は制振用焼付乾燥型塗料、例えば、自動車用車
体の防振対策必要箇所に塗布されて制振作用をなす塗膜
を形成するための塗料に関する。DETAILED DESCRIPTION OF THE INVENTION A. Object of the Invention (1) Field of Industrial Application The present invention is applied to a baking dry type paint for vibration damping, for example, applied to a portion of an automobile body where vibration countermeasures are required to exert a vibration damping action. The present invention relates to a paint for forming a coating film to be formed.
（２）従来の技術 従来、車体の防振性を向上させるために熱貼着性制振
シートが用いられている。この制振シートの貼着作業
は、そのシートを車体の必要箇所に載置し、次いで車体
を乾燥炉内を通過させることによって行われる。(2) Prior Art Conventionally, a heat-adhesive vibration damping sheet has been used to improve the vibration damping properties of a vehicle body. The operation of attaching the vibration damping sheet is performed by placing the sheet on a required portion of the vehicle body and then passing the vehicle body through a drying oven.
（３）発明が解決しようとする課題 しかしながら前記制振シートによると、それを載置す
ることができない箇所には防振対策を講ずることができ
ない、という問題がある。例えば、車体のリヤフロア、
フロントフロア等の略水平な部分や傾斜の緩い部分には
制振シートを貼着することができても、ロードノイズ低
減効果のあるホイールハウス等の略鉛直な部分や傾斜の
急な部分には制振シートを貼着することができない。(3) Problems to be Solved by the Invention However, according to the vibration-damping sheet, there is a problem that a vibration-proof measure cannot be taken at a place where the vibration-damping sheet cannot be placed. For example, the rear floor of the car body,
Even if a vibration damping sheet can be attached to a substantially horizontal part such as the front floor or a part with a gentle slope, it can be applied to a substantially vertical part or a steep part such as a wheel house that has a road noise reduction effect. The vibration damping sheet cannot be stuck.
本発明は前記に鑑み、車体等各種部材の任意の箇所に
防振対策を講ずることのできる前記塗料を提供すること
を目的とする。In view of the above, an object of the present invention is to provide the paint capable of taking anti-vibration measures at an arbitrary position of various members such as a vehicle body.
B.発明の構成 （１）課題を解決するための手段 本発明に係る制振用焼付乾燥型塗料は、ポリエステル
ポリオール100重量に対して、炭酸カルシウム75〜300重
量部、水0.7〜2.5重量部および高沸点芳香族系溶剤８〜
30重量部を配合した主成分と、該主成分100重量部に対
する配合割合が26〜100重量部のジフェニルメタンジイ
ソシアネートとより構成されることを特徴とする。B. Configuration of the Invention (1) Means for Solving the Problems The baking dry type paint for vibration damping according to the present invention comprises 75 to 300 parts by weight of calcium carbonate and 0.7 to 2.5 parts by weight of water based on 100 parts by weight of polyester polyol. And high boiling aromatic solvents 8 to
It is characterized by comprising 30 parts by weight of a main component and diphenylmethane diisocyanate in a proportion of 26 to 100 parts by weight based on 100 parts by weight of the main component.
（２）作用 前記のように構成すると、スプレー塗布が可能で垂れ
防止機能を備えた塗料が調製され、この塗料により制振
作用を発揮する耐衝撃性の優れた発泡ポリウレタン系の
制振塗膜が形成される。(2) Action When configured as described above, a paint that can be spray-coated and has a dripping prevention function is prepared, and a foamed polyurethane-based vibration-damping coating exhibiting excellent shock resistance, which exerts a vibration-damping action by this paint. Is formed.
各成分の配合理由および配合量限定理由は次の通りで
ある。The reasons for blending each component and the reasons for limiting the amount of blending are as follows.
ポリエステルポリオール、ジフェニルメタンジイソシ
アネート（以下、MDIと称す）および水は、発泡ポリウ
レタン系制振塗膜を得るための塗膜形成成分である。Polyester polyol, diphenylmethane diisocyanate (hereinafter, referred to as MDI) and water are film-forming components for obtaining a foamed polyurethane-based damping film.
この場合、MDIの配合量が主成分に対して26重量部未
満では、重合度が低いため、高強度な制振塗膜を得るこ
とができず、一方、100重合部を上回って配合しても効
果は変らないので経済的に不利となる。In this case, if the compounding amount of MDI is less than 26 parts by weight with respect to the main component, the degree of polymerization is low, so that a high-strength vibration-damping coating film cannot be obtained. Is also economically disadvantageous because the effect remains unchanged.
水は、MDIと反応して炭酸ガスを発生し、この炭酸ガ
スにより制振塗膜を発泡させることができる。たゞし、
水の配合量が0.7重量部未満では発泡が不十分であり、
一方、2.5重量部を上回ると、発泡が過度に進行して制
振塗膜が脆くなる。Water reacts with the MDI to generate carbon dioxide gas, and the carbon dioxide gas can foam the damping coating. A lot
If the amount of water is less than 0.7 parts by weight, foaming is insufficient,
On the other hand, if it exceeds 2.5 parts by weight, foaming proceeds excessively and the vibration damping coating film becomes brittle.
炭酸カルシウムは、塗料の垂れを防止し、また制振塗
膜の耐衝撃性を向上させる効果を有する。たゞし、炭酸
カルシウムの配合量が75重量部未満では、前記効果を得
ることができず、一方、300重量部を上回ると、制振塗
膜が脆くなる。Calcium carbonate has the effect of preventing the paint from sagging and improving the impact resistance of the damping coating. However, if the amount of calcium carbonate is less than 75 parts by weight, the above effect cannot be obtained. On the other hand, if it exceeds 300 parts by weight, the damping coating film becomes brittle.
高沸点芳香族系溶剤は、塗料の塗布性および塗着性を
調節するために用いられる。たゞし、前記溶剤の配合量
が８重量部未満ではスプレー塗布性が悪化し、一方、30
重量部を上回ると、垂れが発生する。The high-boiling aromatic solvent is used to adjust the coating properties and coating properties of the paint. However, when the amount of the solvent is less than 8 parts by weight, the spray coatability is deteriorated.
If the amount exceeds the weight part, sagging occurs.
また高沸点芳香族系溶剤としては、ジエチルベンゼ
ン、イソプロピルベンゼン、トリアミルベンゼン、テト
ラアミルベンゼン、ジドデシルベンゼン、アミルトルエ
ン、ｐ−シメン、テトラリン、デカリン、ジペンテン、
ｐ−メンタン等が用いられる。Examples of the high-boiling aromatic solvent include diethylbenzene, isopropylbenzene, triamylbenzene, tetraamylbenzene, didodecylbenzene, amyltoluene, p-cymene, tetralin, decalin, dipentene,
p-Mentane or the like is used.
制振塗膜の焼付乾燥温度は120〜180℃が適当である。
その温度が180℃を上回ると、制振塗膜が脆くなり、一
方、温度が120℃未満であると、発泡が不十分になる。The baking and drying temperature of the damping coating is preferably from 120 to 180 ° C.
If the temperature is higher than 180 ° C, the damping coating film becomes brittle, while if the temperature is lower than 120 ° C, foaming becomes insufficient.
（３）実施例 制振用焼付乾燥型塗料の一例として、次のような配合
割合のものを調製した。(3) Example The following compounding ratio was prepared as an example of a baking dry type paint for vibration damping.
配合例−１ （ａ）主成分 ポリエステルポリオール 200重量部 炭酸カルシウム 300重量部 水 ３重量部 ジエチルベンゼン 30重量部 （ｂ）MDI 140重量部 主成分を第１液とし、またMDIを第２液として、二液
内部混合型スプレーガンを用いて、鋼板に塗装を施し
た。Formulation Example-1 (a) Main component Polyester polyol 200 parts by weight Calcium carbonate 300 parts by weight Water 3 parts by weight Diethylbenzene 30 parts by weight (b) MDI 140 parts by weight The main component is the first liquid, and the MDI is the second liquid. The steel plate was painted using a two-part internal mixing spray gun.
塗装条件は、塗装圧力 150kg/cm2、スプレーガンの
チップ径 23/1000インチ、吐出量 1670g/min、パター
ン幅 270mmに設定された。The coating conditions were set at a coating pressure of 150 kg / cm 2 , a spray gun tip diameter of 23/1000 inches, a discharge rate of 1670 g / min, and a pattern width of 270 mm.
鋼板としては、縦300mm、横300mm、厚さ0.8mmの正方
形鋼板が用いられた。As the steel plate, a square steel plate having a length of 300 mm, a width of 300 mm, and a thickness of 0.8 mm was used.
塗装に当っては、鋼板を鉛直状態に保持してその一面
に塗装を施す横向きスプレー方式、鋼板を45°の傾斜状
態に保持してその上面側に塗装を施す斜め下向きスプレ
ー方式および鋼板を水平状態に保持してその下面側に塗
装を施す上向きスプレー方式をそれぞれ採用した。For painting, a horizontal spray method that holds the steel sheet in a vertical state and paints on one side, an oblique downward spray method that holds the steel sheet in a 45 ° inclined state and paints on its upper side, and a horizontal spray method An upward spray method in which the lower surface side is coated while being held in a state is adopted.
また各スプレー方式において、塗膜厚を1mm、2mm、2.
5mmの三種に設定した。Also, in each spray method, the coating thickness is 1mm, 2mm, 2.
Three types of 5 mm were set.
塗装後の制振塗膜の焼付乾燥条件は、温度140℃、時
間20分間に設定され、制振塗膜の発泡倍率は「３」であ
った。The baking and drying conditions of the damping coating after the coating were set to a temperature of 140 ° C. and a time of 20 minutes, and the foaming ratio of the damping coating was “3”.
前記塗装例において、塗装後10分間に亘り各鋼板を塗
装時の姿勢のまゝに保持して塗料の垂れ性を調べたとこ
ろ、塗料の垂れは全く認められなかった。In the above-mentioned coating example, when each steel plate was kept in the posture at the time of coating for 10 minutes after coating and the dripping property of the paint was examined, no dripping of the paint was observed.
また焼付乾燥後、制振塗膜の割れ、表面平滑性、変形
等を目視検査したところ、何等異常は発生しておらず外
観の良いことが確認された。After baking and drying, visual inspection for cracks, surface smoothness, deformation and the like of the damping coating film confirmed that no abnormality occurred and the appearance was good.
次に、各鋼板として縦1m、横1m、厚さ0.8mmのものを
用い、前記と同一条件で塗装、焼付乾燥を行ってテスト
ピース１〜９を作製した。また比較のため、前記と同一
寸法の鋼板に、厚さ3mmのポリウレタン系制振シートを1
40℃、20分間の条件で熱貼着して三種の比較例テストピ
ース10〜12を作製した。Next, test pieces 1 to 9 were prepared by using each steel plate having a length of 1 m, a width of 1 m and a thickness of 0.8 mm and painting and baking and drying under the same conditions as above. For comparison, a 3 mm-thick polyurethane-based vibration damping sheet was attached to a steel sheet of the same dimensions as above.
Heat bonding was carried out at 40 ° C. for 20 minutes to produce three types of comparative test pieces 10 to 12.
各テストピースについて制振テストを行ったところ、
表Ｉの結果を得た。After conducting a vibration suppression test on each test piece,
The results in Table I were obtained.
制振テストは、制振塗膜面または制振シート貼着面を
上向きにした各テストピース１〜12の中心部に電動モー
タを固定し、その電動モータを回転数5000rpmで回転さ
せ、電動モータから2m離れた位置で各テストピース１〜
12から発生する騒音を測定した。In the vibration suppression test, an electric motor was fixed to the center of each of the test pieces 1 to 12 with the damping film surface or the vibration damping sheet sticking surface facing upward, and the electric motor was rotated at a rotation speed of 5000 rpm. 2m away from each test piece 1
The noise generated from 12 was measured.
表Ｉから明らかなように、本発明に係る塗料を用いて
塗膜厚を1mmに設定した場合は、従来の制振シートを用
いた場合と略同等の制振作用が得られ、また塗膜厚を2m
m、2.5mmにそれぞれ設定すると、従来の制振シートを用
いた場合よりも優れた制振作用が得られるものである。 As is clear from Table I, when the coating thickness according to the present invention is set to 1 mm, a vibration damping action substantially equal to that obtained by using the conventional vibration damping sheet is obtained. 2m thick
By setting m and 2.5 mm, respectively, a more excellent damping action can be obtained than when a conventional damping sheet is used.
制振用焼付乾燥型塗料の他の例としては、次のような
ものを挙げることができる。Other examples of the baking dry type paint for vibration damping include the following.
配合例−２ （ａ）主成分 ポリエステルポリオール 200重量部 炭酸カルシウム 600重量部 水 ５重量部 ジエチルベンゼン 60重量部 （ｂ）MDI 860重量部 この配合例−２における制振塗膜の発泡倍率は「４」
であった。Formulation Example-2 (a) Main component Polyester polyol 200 parts by weight Calcium carbonate 600 parts by weight Water 5 parts by weight Diethylbenzene 60 parts by weight (b) MDI 860 parts by weight The foaming ratio of the vibration-damping coating film in Formulation Example 2 is "4 "
Met.
配合例−３ （ａ）主成分 ポリエステルポリオール 1000重量部 炭酸カルシウム 750重量部 水 ７重量部 ジエチルベンゼン 80重量部 （ｂ）MDI 500重量部 この配合例−３における制振塗膜の発泡倍率は「２」
であった。Formulation Example-3 (a) Main component Polyester polyol 1000 parts by weight Calcium carbonate 750 parts by weight Water 7 parts by weight Diethylbenzene 80 parts by weight (b) MDI 500 parts by weight "
Met.
前記配合例−2,3の塗料も前記配合例−１の塗料と同
様の性状を有し、また同様の制振塗膜を形成することが
できる。The paints of Formulation Examples 2 and 3 also have the same properties as the paint of Formulation Example 1, and can form similar damping coatings.
表IIは比較配合例−１における塗料の垂れ防止性およ
び塗膜の外観性を示す。表中、「○」は良、「×」は不
良にそれぞれ該当する。Table II shows the anti-sag properties of the paint and the appearance of the coating film in Comparative Formulation Example-1. In the table, “○” corresponds to good, and “×” corresponds to bad.
比較配合例−１ （ａ）主成分 ポリエステルポリオール 100重量部 炭酸カルシウム 400重量部 水 ３重量部 ジエチルベンゼン 20重量部 （ｂ）MDI 130重量部 この比較配合例−１における塗膜の発泡倍率は「５」
であった。Comparative Formulation Example-1 (a) Main component Polyester polyol 100 parts by weight Calcium carbonate 400 parts by weight Water 3 parts by weight Diethylbenzene 20 parts by weight (b) MDI 130 parts by weight In this Comparative Formulation Example 1, the foaming ratio of the coating film is “5”. "
Met.
表IIから明らかなように、比較配合例−１において
は、炭酸カルシウムの配合割合が多いので、塗料の垂れ
防止性は良いが、その反面、水の配合割合が多いことも
あって発泡が過度に進行し、塗膜の外観性が悪化する。 As is clear from Table II, in Comparative Formulation Example 1, the coating ratio of calcium carbonate was large, so that the paint dripping prevention was good, but on the other hand, foaming was excessive due to the large mixing ratio of water. And the appearance of the coating film deteriorates.
表IIは比較配合例−２における塗料の垂れ防止性およ
び塗膜の外観性を示す。表中、「○」は良、「×」は不
良にそれぞれ該当する。Table II shows the anti-sag properties of the paint and the appearance of the coating film in Comparative Formulation Example-2. In the table, “○” corresponds to good, and “×” corresponds to bad.
比較配合例−２ （ａ）主成分 ポリエステルポリオール 200重量部 炭酸カルシウム 60重量部 水 １重量部 ジエチルベンゼン 20重量部 （ｂ）MDI 70重量部 この比較配合例−２における塗膜の発泡倍率は「1.
2」であった。Comparative Formulation Example-2 (a) Main component Polyester polyol 200 parts by weight Calcium carbonate 60 parts by weight Water 1 part by weight Diethylbenzene 20 parts by weight (b) MDI 70 parts by weight The foaming ratio of the coating film in Comparative Example 2 was "1". .
2 ".
表IIIから明らかなように、比較配合例−２において
は、炭酸カルシウムの配合割合が少ないので塗料の垂れ
防止性が悪く、これは上向きスプレー方式において端的
に現れている。また塗膜の外観性も、前記塗料の垂れに
起因して悪化する。 As is clear from Table III, in Comparative Formulation Example 2, the coating ratio of calcium carbonate was small, so that the paint had poor sagging prevention properties, which clearly appeared in the upward spray method. Further, the appearance of the coating film also deteriorates due to the dripping of the paint.
第1,第２図は本発明に係る塗料の適用例を示し、第１
図に示すように車体１におけるダッシュボードロア２お
よびフロントホイールハウス５のエンジンルーム側の面
と、フロントフロア３、リヤフロア４およびリヤホイー
ルハウス６の車室側の面とに、それぞれ制振塗膜が形成
され、また第２図に示すようにドア外板７の内面にも制
振塗膜が形成される。1 and 2 show an application example of the paint according to the present invention.
As shown in the figure, a damping film is applied to the dashboard lower surface 2 and the front wheel house 5 of the vehicle body 1 on the engine room side, and to the front floor 3, rear floor 4 and rear wheel house 6 of the vehicle room side. Are formed on the inner surface of the door outer panel 7 as shown in FIG.
このように車体１の各部に制振塗膜を形成すると、車
室内において良好な制振性および遮音性が得られる。When the damping coating is formed on each part of the vehicle body 1 in this manner, good damping and sound insulation can be obtained in the vehicle interior.
車体塗装ラインにおける制振塗膜の形成は、電着塗装
工程における乾燥処理後、シーラ塗布工程、中塗り塗装
工程、上塗り塗装工程および車体下面への外傷防止用塗
料、例えばアンダーコート塗布工程（たゞし、乾燥処理
前）の何れかの工程で行われる。The formation of the vibration damping coating film in the body coating line is performed by a drying process in the electrodeposition coating process, a sealer coating process, an intermediate coating process, a top coating process, and a paint for preventing damage to the lower surface of the vehicle body, such as an undercoat coating process. (Before the drying process).
なお、本発明は車体に限らず、工作機械等各種部材に
制振塗膜を形成する場合に適用される。The present invention is not limited to a vehicle body, but is applied to a case where a vibration damping coating is formed on various members such as a machine tool.
C.発明の効果 本発明によれば、各種部材の任意の箇所に、スプレー
塗布および焼付乾燥を施して防振対策を講ずることが可
能な制振用焼付乾燥型塗料を提供することができる。C. Effects of the Invention According to the present invention, it is possible to provide a bake-drying paint for vibration damping that can apply spray coating and bake-dry to any part of various members to take measures against vibrations.
第１図は車体の斜視図、第２図はドア外板の斜視図であ
る。FIG. 1 is a perspective view of a vehicle body, and FIG. 2 is a perspective view of a door outer panel.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) C09D 175/04 C09D 5/00──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. 6 , DB name) C09D 175/04 C09D 5/00
Claims (1)
て、炭酸カルシウム75〜300重量部、水0.7〜2.5重量部
および高沸点芳香族系溶剤８〜30重量部を配合した主成
分と、該主成分100重量部に対する配合割合が26〜100重
量部のジフェニルメタンジイソシアネートとより構成さ
れることを特徴とする制振用焼付乾燥型塗料。A main component comprising 75 to 300 parts by weight of calcium carbonate, 0.7 to 2.5 parts by weight of water and 8 to 30 parts by weight of a high-boiling aromatic solvent based on 100 parts by weight of a polyester polyol; A baking and drying type paint for vibration damping, comprising 26 to 100 parts by weight of diphenylmethane diisocyanate in a compounding ratio based on parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20945289A JP2782362B2 (en) | 1989-08-11 | 1989-08-11 | Baking dry paint for vibration damping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20945289A JP2782362B2 (en) | 1989-08-11 | 1989-08-11 | Baking dry paint for vibration damping |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0374482A JPH0374482A (en) | 1991-03-29 |
| JP2782362B2 true JP2782362B2 (en) | 1998-07-30 |
Family
ID=16573107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20945289A Expired - Fee Related JP2782362B2 (en) | 1989-08-11 | 1989-08-11 | Baking dry paint for vibration damping |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2782362B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2814887B2 (en) * | 1993-08-26 | 1998-10-27 | 住友電装株式会社 | connector |
| JP2725758B2 (en) * | 1993-10-27 | 1998-03-11 | 矢崎総業株式会社 | Dummy plug for waterproof connector and waterproof connector |
| US5653602A (en) * | 1995-02-22 | 1997-08-05 | Yazaki Corporation | Erroneous connection preventing stopping plug |
| US6171144B1 (en) * | 1998-12-18 | 2001-01-09 | Lear Automotive Dearborn, Inc. | Electrical connector sealing plug |
| US6808418B2 (en) | 1999-10-28 | 2004-10-26 | Quality Synthetic Rubber, Inc. | Dummy plug for wiring harness |
| US6247965B1 (en) * | 1999-12-06 | 2001-06-19 | Delphi Technologies, Inc. | Electrical connector having sealed snap-in locking cavity plugs |
-
1989
- 1989-08-11 JP JP20945289A patent/JP2782362B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0374482A (en) | 1991-03-29 |
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| LAPS | Cancellation because of no payment of annual fees |