JPH04161443A - Vinyl chloride plastisol composition - Google Patents
Vinyl chloride plastisol compositionInfo
- Publication number
- JPH04161443A JPH04161443A JP2289355A JP28935590A JPH04161443A JP H04161443 A JPH04161443 A JP H04161443A JP 2289355 A JP2289355 A JP 2289355A JP 28935590 A JP28935590 A JP 28935590A JP H04161443 A JPH04161443 A JP H04161443A
- Authority
- JP
- Japan
- Prior art keywords
- vinyl chloride
- weight
- parts
- pts
- plastisol composition
- 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
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229920001944 Plastisol Polymers 0.000 title claims abstract description 26
- 239000004999 plastisol Substances 0.000 title claims abstract description 26
- 239000000203 mixture Substances 0.000 title claims abstract description 23
- 229920005989 resin Polymers 0.000 claims abstract description 18
- 239000011347 resin Substances 0.000 claims abstract description 18
- 239000012948 isocyanate Substances 0.000 claims abstract description 8
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 8
- 239000004014 plasticizer Substances 0.000 claims abstract description 8
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 7
- 239000000945 filler Substances 0.000 claims abstract description 6
- 238000000576 coating method Methods 0.000 abstract description 16
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 abstract description 8
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 abstract description 8
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract description 3
- 239000000454 talc Substances 0.000 abstract description 2
- 229910052623 talc Inorganic materials 0.000 abstract description 2
- 238000013329 compounding Methods 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 description 17
- 239000010959 steel Substances 0.000 description 17
- 239000011248 coating agent Substances 0.000 description 14
- 239000003973 paint Substances 0.000 description 14
- 239000003795 chemical substances by application Substances 0.000 description 6
- 238000005336 cracking Methods 0.000 description 5
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 5
- 229920002554 vinyl polymer Polymers 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000003566 sealing material Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 125000002091 cationic group Chemical group 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- 229920000877 Melamine resin Polymers 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229920000180 alkyd Polymers 0.000 description 2
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004070 electrodeposition Methods 0.000 description 2
- 230000006355 external stress Effects 0.000 description 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- ZVFDTKUVRCTHQE-UHFFFAOYSA-N Diisodecyl phthalate Chemical compound CC(C)CCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC(C)C ZVFDTKUVRCTHQE-UHFFFAOYSA-N 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical group C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- DROMNWUQASBTFM-UHFFFAOYSA-N dinonyl benzene-1,2-dicarboxylate Chemical compound CCCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCCC DROMNWUQASBTFM-UHFFFAOYSA-N 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- -1 for example Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000015096 spirit Nutrition 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Landscapes
- Polyurethanes Or Polyureas (AREA)
- Paints Or Removers (AREA)
Abstract
Description
本発明は車両の耐チツピング塗料やポディシーラとして
好適な塩化ビニル系プラスチゾル組成物に関するもので
ある。The present invention relates to a vinyl chloride-based plastisol composition suitable as a chipping-resistant paint or podicealer for vehicles.
自動車のボディ等には電＠塗装が施された鋼板が使用さ
れている。その表面には耐チツピング塗料層が設けられ
、中塗りや上塗りの塗料が重ねられる。耐チツピング塗
料層は、小石等の衝突による衝撃を緩和、吸収して上層
の塗料剥離を防止するためのものである。また、鋼板の
接合部や継目部には間隙をシールして鋼板の防水性や防
塵性、防錆性を確保するシーリング材が塗布、充填され
る。その上には中塗りや上塗りの塗料が重ねて塗布され
る。
これら耐チツピング塗料やシーリング材、中塗り塗料お
よび上塗り塗料は、塗布の都度または複数層−緒に焼付
けられるが、焼付は温度が規定の温度よりも高温側にふ
れると中塗りや上塗り等の上層塗膜に亀裂（ワレ）が生
じるという問題がある。
この現象は、耐チツピング塗料やシーリング材に用いら
れる塩化ビニル系プラスチゾル組成物と上層塗膜との熱
に対する性質が大きく異なるためと推定される。塩化ビ
ニル系プラスチゾル組成物は熱可塑性で高温になるほど
外部応力によって塑性変形し易くなる性質がある。上層
塗膜には高温になるほど大きく収縮する性質がある。
例えば、熱収縮のない鉄板上に中塗りや上塗り塗料を直
接塗布して焼付けた場合、塗料は鉄板に強固に畜着して
平面方向には収縮せず、内部応力（内部歪）が残存する
ものの割れることはない。
これに対し、高温で可塑化した塩化ビニル系プラスチゾ
ル組成物層上の塗膜は、平面方向にも容易に収縮して割
れてしまう。
このような問題は、特開昭６０−９６６３４号公報に開
示されているように、幹部にビスフェノールＡ基をもつ
有機化合物を耐熱われ性向上剤として添加すれば解決可
能である。しかし、このプラスチゾルは剪断接着力が低
下したり塗膜がべたつ（ことがあった。Electrically coated steel plates are used in the bodies of automobiles. A chipping-resistant paint layer is provided on the surface, and intermediate and top coats are applied. The chipping-resistant paint layer is for mitigating and absorbing impacts caused by collisions with pebbles, etc., and preventing peeling of the upper layer paint. In addition, a sealing material is applied and filled at the joints and joints of the steel plates to seal gaps and ensure the waterproof, dustproof, and rustproof properties of the steel plates. On top of that, intermediate and top coats of paint are applied in layers. These chipping-resistant paints, sealants, intermediate coats, and top coats are baked each time they are applied, or in multiple layers. There is a problem that cracks occur in the paint film. This phenomenon is presumed to be due to the fact that the vinyl chloride plastisol composition used for chipping-resistant paints and sealants and the upper coating film have greatly different heat resistance properties. Vinyl chloride-based plastisol compositions are thermoplastic and have the property that the higher the temperature, the more easily they become plastically deformed by external stress. The upper coating film has the property of shrinking more as the temperature increases. For example, if an intermediate coat or top coat is applied directly to a non-heat-shrinkable steel plate and baked, the paint adheres firmly to the steel plate and does not shrink in the plane direction, leaving internal stress (internal strain). Nothing will break. On the other hand, the coating film on the vinyl chloride plastisol composition layer plasticized at high temperature easily shrinks and cracks in the planar direction as well. Such problems can be solved by adding an organic compound having a bisphenol A group in the trunk as a heat resistance improving agent, as disclosed in JP-A No. 60-96634. However, this plastisol sometimes had poor shear adhesion and a sticky coating.
【発明が解決しようとする課題］
本発明は前記の課題を解決するためなされたもので、塩
化ビニル系プラスチゾル組成物の表面に重ねて塗装した
中塗りや上塗り塗料を、比較的高温で焼付けた場合でも
、表面の塗膜が割れることのない塩化ビニル系プラスチ
ゾル組成物を提供することを目的とする。
【課題を解決するための手段】
上記の問題を解決するためなされた本発明の塩化ビニル
系プラスチゾル組成物は、塩化ビニル系樹脂１００重量
部と、ブロックイソシアネート３〜１５重量部と、可塑
剤８０〜１３０重量部と、充填剤１００〜１５０重量部
とを含んでいる。塩化ビニル系樹脂のうち少なくとも５
０重量部は、一分子に複数のＯＨ基を有するものである
。
塩化ビニル系樹脂は、例えば日本ゼオン■製のゼオンＧ
−１２１（商品名）やゼオンＧ−５１（商品名）が使用
できる。
一分子に複数のＯＨ基を有する塩化ビニル系樹脂として
は、例えば、三菱化成ビニル■製のビニ力 Ｐ−３００
（商品名）やビニ力 Ｐ−１０（１（商品名）がある。
ブロックイソシアネートは、硬化剤として添加するもの
で、例えば、三菱化成ビニル■製のアゾスター８５１（
商品名）やアゾスター７５１（商品名）が使用可能であ
る。
可塑剤としては、例えば、ジオクチルフタレート、ジブ
チルフタレート、ジオクチルフタレート、ジイソデシル
フタレート、ジノニルフタレートのような一般的なもの
を使用することが出来る。
充填剤としては、例えば、炭酸カルシウム、タルク、ク
レイ、シリカ、有機ベントナイトが使用可能である。
これらの他、耐チッピング材やシーリング材の材料とし
て一般に用いられる材料を必要に応じて添加しても構わ
ない。
なお、ブロックイソシアネート量は、塩化ビニル系樹脂
１００重量部に対して３〜１５重量部に設定する。３重
量部以下のときは焼付けによるプラスチゾル組成物の硬
化が不十分で、上層の塗膜に亀裂が入ることがある。１
５重量部以上加えても、それ以上の耐ワレ性向上は望め
ず、コスト面で不利になる。また、プラスチゾル組成物
が硬くなりすぎて耐チツピング層やシーリング材として
の特性が損なわれる。
可塑剤の量は塩化ビニル系樹脂１００重量部に対して８
０〜１３０重量部であることが好ましい。８０重量部以
下のときは硬化物が硬くなりすぎ、耐チツピング層やシ
ーリング材としての特性が損なわれる。１３０重量部以
上のときは温間弾性率低下により耐ワレ性が低下する。
充填剤量は塩化ビニル系樹脂１００重量部に対して１０
０〜１５０重量部に設定することが望ましい。１００重
量部以下のときはチクソ性が低下し、塗装の際にたれ易
（なる。１５０重量部以上のときは硬化物の物性が低下
してしまう。
また、塩化ビニル系樹脂の総量１００重量部のうち少な
くとも５０重量部は、一分子に複数のＯＨ基を有してい
るものを使用する。一分子に複数のＯＨ基を有する塩化
ビニル系樹脂量が５０重量部未満のときは、プラスチゾ
ル組成物の硬化が不十分で、上層の塗膜に亀裂が入るこ
とがある。[Problems to be Solved by the Invention] The present invention has been made to solve the above-mentioned problems, and the present invention has been made in order to solve the above-mentioned problems. An object of the present invention is to provide a vinyl chloride-based plastisol composition in which the coating film on the surface does not crack even when the surface coating is damaged. [Means for Solving the Problems] The vinyl chloride plastisol composition of the present invention, which was made to solve the above problems, contains 100 parts by weight of a vinyl chloride resin, 3 to 15 parts by weight of a blocked isocyanate, and 80 parts by weight of a plasticizer. ~130 parts by weight and 100-150 parts by weight of filler. At least 5 of vinyl chloride resins
0 parts by weight means that one molecule has a plurality of OH groups. Examples of vinyl chloride resin include Zeon G manufactured by Nippon Zeon ■.
-121 (trade name) and Zeon G-51 (trade name) can be used. As a vinyl chloride resin having multiple OH groups in one molecule, for example, Vinyryoku P-300 manufactured by Mitsubishi Kasei Vinyl■
(trade name) and Vinyryoku P-10 (1 (trade name). Block isocyanate is added as a hardening agent. For example, Azostar 851 (trade name) manufactured by Mitsubishi Kasei Vinyl■
(trade name) and Azostar 751 (trade name) can be used. As the plasticizer, common ones such as dioctyl phthalate, dibutyl phthalate, dioctyl phthalate, diisodecyl phthalate, and dinonyl phthalate can be used. As fillers, for example, calcium carbonate, talc, clay, silica, and organic bentonite can be used. In addition to these materials, materials commonly used for chipping-resistant materials and sealing materials may be added as necessary. The amount of blocked isocyanate is set to 3 to 15 parts by weight based on 100 parts by weight of the vinyl chloride resin. When the amount is less than 3 parts by weight, the plastisol composition is insufficiently cured by baking, and the upper coating film may crack. 1
Even if 5 parts by weight or more is added, no further improvement in cracking resistance can be expected, which is disadvantageous in terms of cost. Furthermore, the plastisol composition becomes too hard, impairing its properties as a chipping-resistant layer or a sealing material. The amount of plasticizer is 8 parts by weight for 100 parts by weight of vinyl chloride resin.
It is preferably 0 to 130 parts by weight. When the amount is less than 80 parts by weight, the cured product becomes too hard and its properties as a chipping-resistant layer and a sealing material are impaired. When the amount is 130 parts by weight or more, cracking resistance decreases due to a decrease in warm elastic modulus. The amount of filler is 10 parts by weight for 100 parts by weight of vinyl chloride resin.
It is desirable to set it to 0 to 150 parts by weight. When the amount is less than 100 parts by weight, the thixotropy decreases and it tends to sag during painting. When it is more than 150 parts by weight, the physical properties of the cured product decrease. In addition, the total amount of vinyl chloride resin is 100 parts by weight. At least 50 parts by weight of the vinyl chloride resin having multiple OH groups per molecule is used.When the amount of vinyl chloride resin having multiple OH groups per molecule is less than 50 parts by weight, the plastisol composition The product may not cure sufficiently and cracks may appear in the upper coating.
以下、本発明の詳細な説明する。
実施例１〜３（本発明を適用する例）および比較例１〜
３（本発明を適用以外の例）に使用する塩化ビニル系プ
ラスチゾル組成物は下記の物質を混合して調製する。
塩化ビニル系プラスチゾル組成物の材料組成・複数のＯ
Ｈ基を有する塩化ビニル樹脂三菱化成ビニル四製、Ｐ−
３００
・塩化ビニル樹脂
日本ゼオン■製、Ｇ−１２１
日本ゼオン■製、Ｇ−５１
・硬化剤
ブロックイソシアネート
三菱化成ビニル■製、アゾスター８５１・可塑剤
ジオクチルフタレート（ＤＯＰＩ
・充填剤
竹原化学工業噛製、重質炭酸カルシウム・耐熱割れ性向
上剤（比較例のみに使用）エポキシ系樹脂
旭電化工業■、Ｅｐ−４１００［ビスＡ）・その他
ミネラルスピリット
第１表に各実施例および比較例に使用する物質名と組成
比を示す。
なお、硬化剤として添加する三菱化成ビニル■製、アゾ
スター８５１は、総量の １／６がブロックイソシアネ
ート（硬化剤）で、５／６がジオクチルフタレート（可
塑剤）である。第１表のジオクチルフタレートの欄には
、アゾスター８５１中のジオクチルフタレートと、別に
添加したジオクチルフタレートとの合計量を記載しであ
る。
プラスチゾル組成物の調製
上記の物質を第１表の組成比に従い、減圧装置付ニーダ
を用いて３０分間混合した後６０分間脱泡し、塩化ビニ
ル系プラスチゾル組成物を得た。
プラスチゾル組成物の評価
・塗膜ワレ試験
カチオン電着塗装を施した １０１００Ｘ３００、厚さ
０．８＋ａｍの鋼板に上記で調整したプラスチゾルを１
５Ｘ２５ｈｍ、厚さ３＋＋＋ｍのリボン状に塗設した後
、へケを用いてプラスチゾルの半分（１５Ｘ１２Ｆ＋＋
＋ｍ）をその長手方向に扇形に押し広げる。熱風循環乾
燥機にて９５℃、８分間の予備乾燥を行なった後、表面
に上塗り塗料（メラミンアルキッド樹脂系塗料）を塗装
し、熱風循環乾燥機を用いて第１表に示す条件で焼付け
た。焼付は終了後、上塗り塗装面のワレの有無を目視で
１察した。ワレがないものを可（○）、少しでもワレが
あるものを不可（×）とした。
・剪断接着力試験
カチオン電着塗装を施した１００Ｘ２５０１１１、厚さ
１■■の鋼板を２枚用意する。第１図に示すように一方
の鋼板２の端部近傍に、スペーサ４として離型処理した
厚さ１ｆｆｌｌｌの鋼板を２５＋ｎ＋ａ離間して平行に
２枚配置し、その間に上記で調製したプラスチゾル５を
多めに塗設した後、もう１枚の鋼板３の端部を重ねて直
線状に合わせ、クリップ６で挟んで固定する。固定され
た２枚の鋼板２・３を、熱風循環乾燥機を用いて第１表
に示す条件で焼付けた後。
２０℃環境にて放冷する。２０〜２４時間経過後、クリ
ップ６とスペーサ４を取り外し、鋼板２と３との間から
はみ出した硬化済のプラスチゾル５を鋭利な刃物で取り
除き１ｗ４板接看体を得る。このとき接着面に応力が加
わらないように注意する。
次に、鋼板接着体の両端部を支持体７とともに引張り試
験機の保持具に固定し、２０℃環境下で引張り速度５０
ｍｍ／分で長平方向に引張り、最大荷重を測定する。剪
断接着力は次式
によって求めた。
・塗膜のベタツキ試験
カチオン電＠塗装が施された７０ｘ１５（ｌｎｍ、厚さ
０．８＋ｍの鋼板に上記で調製したプラスチゾルを５０
Ｘ１００ｍｍ、厚さｌ＋ｎａ＋になるように塗布する。
熱風循環乾燥機にて９５℃、８分間の予備乾燥を行なっ
た後、その表面に上塗り塗料（メラミンアルキッド樹脂
系塗料）を塗装し、熱風循環乾燥機を用いて１４０℃で
２０分間焼付けた。焼付は終了後常温まで放冷した後、
指触にてベタツキの有無を観察した。ベタツキがないも
のを可（○）、ベタツキのあるものを不可（Ｘ）とした
。
第１表に試験結果を示す
ｃ以下余白）The present invention will be explained in detail below. Examples 1 to 3 (examples to which the present invention is applied) and comparative examples 1 to 3
The vinyl chloride plastisol composition used in Example 3 (example other than application of the present invention) is prepared by mixing the following substances. Material composition of vinyl chloride plastisol composition/Multiple O
Vinyl chloride resin with H group manufactured by Mitsubishi Kasei Vinyl 4, P-
300 - Vinyl chloride resin made by Nippon Zeon ■, G-121 Made by Nippon Zeon ■, G-51 - Curing agent blocked isocyanate made by Mitsubishi Kasei Vinyl ■, Azostar 851 - Plasticizer dioctyl phthalate (DOPI) - Filler Takehara Chemical Industry Co., Ltd. Heavy calcium carbonate/Heat cracking resistance improver (used only in comparative examples) Epoxy resin Asahi Denka Kogyo ■, Ep-4100 [Bis A)/Other mineral spirits Substances used in each example and comparative example in Table 1 The name and composition ratio are shown. In addition, 1/6 of the total amount of Azostar 851 manufactured by Mitsubishi Kasei Vinyl ■, which is added as a hardening agent, is blocked isocyanate (hardening agent) and 5/6 is dioctyl phthalate (plasticizer). The column of dioctyl phthalate in Table 1 shows the total amount of dioctyl phthalate in Azostar 851 and dioctyl phthalate added separately. Preparation of Plastisol Composition The above substances were mixed for 30 minutes using a kneader equipped with a vacuum device according to the composition ratios shown in Table 1, and then defoamed for 60 minutes to obtain a vinyl chloride plastisol composition. Evaluation of plastisol composition and coating film cracking test Plastisol prepared above was applied to a 10100 x 300, 0.8+ am thick steel plate coated with cationic electrodeposition.
After coating in a ribbon shape of 5 x 25 hm and thickness of 3+++ m, use a spatula to coat half of the plastisol (15 x 12 F++
+m) in a fan shape in its longitudinal direction. After preliminary drying at 95°C for 8 minutes in a hot air circulation dryer, a top coat (melamine alkyd resin paint) was applied to the surface and baked under the conditions shown in Table 1 using a hot air circulation dryer. . After baking was completed, the presence or absence of cracks on the top coated surface was visually inspected. Items with no cracks were rated acceptable (○), and items with even the slightest cracks were rated unacceptable (x). - Shear adhesion test Prepare two steel plates of 100 x 250111 and 1 mm thick with cationic electrodeposition coating. As shown in FIG. 1, near the end of one steel plate 2, two steel plates with a thickness of 1fflll that have been subjected to mold release treatment are placed as spacers 4 in parallel with a distance of 25+n+a, and the plastisol 5 prepared above is placed between them. After a large amount of coating is applied, the ends of another steel plate 3 are overlapped and aligned in a straight line, and fixed with clips 6. After baking the two fixed steel plates 2 and 3 using a hot air circulation dryer under the conditions shown in Table 1. Allow to cool in a 20°C environment. After 20 to 24 hours have elapsed, the clip 6 and spacer 4 are removed, and the hardened plastisol 5 protruding from between the steel plates 2 and 3 is removed with a sharp knife to obtain a 1w4 plate contact body. At this time, be careful not to apply stress to the adhesive surface. Next, both ends of the steel plate bonded body were fixed to the holder of a tensile tester together with the support 7, and the tensile speed was 50 in an environment of 20°C.
Pull in the longitudinal direction at mm/min and measure the maximum load. The shear adhesive strength was determined by the following formula. - Paint film stickiness test 50% of the plastisol prepared above was applied to a 70x15 (lnm, 0.8 + m thick) steel plate coated with cationic electrolyte.
Coat so that the size is 100mm and the thickness is l+na+. After preliminary drying at 95°C for 8 minutes in a hot air circulation dryer, a top coat (melamine alkyd resin paint) was applied to the surface and baked at 140°C for 20 minutes using a hot air circulation dryer. After baking is finished, let it cool to room temperature,
The presence or absence of stickiness was observed by touching with fingers. Those with no stickiness were evaluated as acceptable (○), and those with stickiness were evaluated as unacceptable (X). Table 1 shows the test results (margins below c)
以上詳細に説明したように本発明の塩化ビニル系プラス
チゾル組成物は、高温で焼付けた場合でも外部応力によ
って塑性変形することがなく、上層に重ねて塗布した塗
料が熱収縮して割れることがない。また、剪断強度が優
れていることに加え、上層の塗膜がべたつくこともない
。そのため、車両塗装の耐チツピング塗料や車両ボディ
鋼板のシーリング材として有効である。As explained in detail above, the vinyl chloride plastisol composition of the present invention does not undergo plastic deformation due to external stress even when baked at high temperatures, and the paint applied as an upper layer does not shrink and crack due to heat. . In addition to having excellent shear strength, the upper coating film does not become sticky. Therefore, it is effective as a chipping-resistant paint for vehicle painting and as a sealant for vehicle body steel plates.
第１図は剪断接着力試験に使用する鋼板接着体の説明図
である。
２・３・・・鋼板 ４・・−スペーサ５・・・プ
ラスチゾル ６・・・クリップ７・・・支持体
第１図FIG. 1 is an explanatory diagram of a steel plate bonded body used in the shear adhesion test. 2, 3... Steel plate 4...-Spacer 5... Plastisol 6... Clip 7... Support figure 1
Claims (1)
アネート３〜１５重量部と、可塑剤８０〜１３０重量部
と、充填剤１００〜１５０重量部とを含み、前記塩化ビ
ニル系樹脂のうち少なくとも５０重量部は、一分子に複
数のＯＨ基を有していることを特徴とする塩化ビニル系
プラスチゾル組成物。1. Contains 100 parts by weight of vinyl chloride resin, 3 to 15 parts by weight of blocked isocyanate, 80 to 130 parts by weight of plasticizer, and 100 to 150 parts by weight of filler, and at least 50 parts by weight of the vinyl chloride resin. Part 1 is a vinyl chloride plastisol composition having a plurality of OH groups in one molecule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2289355A JPH04161443A (en) | 1990-10-26 | 1990-10-26 | Vinyl chloride plastisol composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2289355A JPH04161443A (en) | 1990-10-26 | 1990-10-26 | Vinyl chloride plastisol composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04161443A true JPH04161443A (en) | 1992-06-04 |
Family
ID=17742131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2289355A Pending JPH04161443A (en) | 1990-10-26 | 1990-10-26 | Vinyl chloride plastisol composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04161443A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010260991A (en) * | 2009-05-11 | 2010-11-18 | Aisin Chem Co Ltd | Interlayer chipping-resistant material composition |
| CN112592678A (en) * | 2019-10-01 | 2021-04-02 | 帕卡辉旭股份有限公司 | Vinyl chloride sol type ultraviolet curing sealing material |
-
1990
- 1990-10-26 JP JP2289355A patent/JPH04161443A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010260991A (en) * | 2009-05-11 | 2010-11-18 | Aisin Chem Co Ltd | Interlayer chipping-resistant material composition |
| CN112592678A (en) * | 2019-10-01 | 2021-04-02 | 帕卡辉旭股份有限公司 | Vinyl chloride sol type ultraviolet curing sealing material |
| CN112592678B (en) * | 2019-10-01 | 2022-06-28 | 帕卡辉旭股份有限公司 | Vinyl chloride sol type ultraviolet curing sealing material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6800188B2 (en) | Structural adhesive film | |
| US20050269840A1 (en) | Sealant material | |
| US4548989A (en) | Fluorocarbon polymer compositions | |
| US11377576B2 (en) | Structural adhesive with improved corrosion resistance | |
| JPS63101461A (en) | Low molecular weight epoxy functional polyurethane and its application | |
| US3388945A (en) | Dielectric bonding of convertible top deck material to glass | |
| JPS63314289A (en) | Epoxy adhesive composition and adhering method | |
| KR20020034081A (en) | Adhesive/Sealant Composition and Bonded Structure Using the Same | |
| JPH04161443A (en) | Vinyl chloride plastisol composition | |
| JP2004144206A (en) | Sealing material for vehicle | |
| JPH04175581A (en) | Manufacture of engine gasket | |
| KR100364295B1 (en) | Experimental table top of experiment, laboratory and its manufacturing method | |
| CN208776643U (en) | The weather-proof formula car clothing invisible protective film of metallic light sensation | |
| US3849367A (en) | Flexible polyester based sealing composition | |
| JP2804777B2 (en) | Concrete material and its protective film forming method | |
| JPS6343969A (en) | Body sealer | |
| JPS6211670B2 (en) | ||
| JP7410710B2 (en) | Water-based exterior wood paint | |
| JPS6017312B2 (en) | silicone resin composition | |
| JPH0543761A (en) | Polyvinyl chloride plastisol composition | |
| JPH06329973A (en) | Polyvinyl chloride-based sealing composition | |
| JPH08108448A (en) | Production of plastic molding | |
| JPS6270038A (en) | Sheet-shaped double layer constraint type vibration-damping material | |
| JPH03140321A (en) | Vinyl chloride plastisol composition | |
| JPH06221439A (en) | Metal rubber gasket of alkali-proof property |