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CN103666247A - Smears for coating surface of vehicle body - Google Patents

Smears for coating surface of vehicle body Download PDF

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Publication number
CN103666247A
CN103666247A CN201310285662.3A CN201310285662A CN103666247A CN 103666247 A CN103666247 A CN 103666247A CN 201310285662 A CN201310285662 A CN 201310285662A CN 103666247 A CN103666247 A CN 103666247A
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solvent
silicone
silane coupling
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coating agent
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高岛大树
泷下胜久
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Ishihara Chemical Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D183/00Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
    • C09D183/02Polysilicates
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives

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Abstract

本发明提供一种将改性有机硅系的车辆用涂布剂固定在车辆的涂装表面、防止改性有机硅经时性地脱离的保护涂装表面的车辆用涂布剂。本发明的保护涂装表面的车辆用涂布剂由有机硅烷氧基低聚物、固化催化剂、在分子的任一个末端具有甲醇改性基团的硅油、硅烷偶联剂和溶剂构成,且在常温下形成固化被膜。The present invention provides a vehicle coating agent for protecting the painted surface by fixing a modified silicone-based vehicle coating agent on the painted surface of a vehicle and preventing the modified silicone from detaching over time. The vehicle coating agent for protecting the painted surface of the present invention is composed of organosilicon alkoxy oligomer, curing catalyst, silicone oil with methanol modification group at any end of the molecule, silane coupling agent and solvent, and A cured film is formed at room temperature.

Description

车辆车身的涂装表面用涂布剂Coating agent for painted surface of vehicle body

技术领域technical field

本发明涉及汽车等车辆、特别是车辆机身等车身、尤其是车辆机身的涂装面上的涂布剂。The present invention relates to a coating agent for a vehicle such as an automobile, particularly a vehicle body such as a vehicle body, especially a coating surface of a vehicle body.

背景技术Background technique

以往,作为车身表面的涂布剂,加入以湿气固化性有机硅低聚物为主要成分并用有机官能团改性而得到的硅油以使得拒水性等各种性能得到了提高的体系常常被使用。Conventionally, as a coating agent for the surface of a car body, a system in which various properties such as water repellency are improved by adding silicone oil mainly composed of a moisture-curable silicone oligomer modified with an organic functional group has been used.

作为这样的涂布组合物,可列举出专利文献1中所公开的车辆用涂布剂。专利文献1中,公开了一种车辆用涂布剂,其特征在于,含有湿气固化性有机硅低聚物、固化催化剂、和至少在分子的双末端具有反应性官能团的双末端型反应性硅油,上述双末端型反应性硅油的配合比例是相对于100重量份的上述湿气固化性有机硅低聚物为25重量份以上。As such a coating composition, the coating agent for vehicles disclosed in patent document 1 is mentioned. Patent Document 1 discloses a vehicle coating agent characterized by containing a moisture-curable silicone oligomer, a curing catalyst, and a dual-terminal reactive functional group having reactive functional groups at least at both terminals of the molecule. The blending ratio of the silicone oil and the dual-end reactive silicone oil is 25 parts by weight or more relative to 100 parts by weight of the moisture-curable silicone oligomer.

然而,发现了通过该涂布组合物得到的车辆表面的光泽被膜虽然在拒水性上没有问题,但是在滑水性、光滑性、擦伤性上存在问题,从而期待对其进行改善。However, it has been found that the glossy film on the vehicle surface obtained by this coating composition has no problem in water repellency, but has problems in water gliding property, slipperiness, and abrasion resistance, and it is desired to improve it.

现有技术文献prior art literature

专利文献patent documents

专利文献1:日本特开2008-075021号公报Patent Document 1: Japanese Patent Laid-Open No. 2008-075021

发明内容Contents of the invention

发明所要解决的问题The problem to be solved by the invention

虽然有将各种改性有机硅(modified silicone)固定的技术,特别是有通过使分子末端的硅烷醇基、烷氧基与有机硅低聚物的烷氧基甲硅烷基反应来将改性有机硅固定的技术,但其是不充分的,由于改性有机硅经时性地脱离而难以维持初始性能。Although there are techniques for immobilizing various modified silicones, especially by reacting the silanol group and alkoxy group at the end of the molecule with the alkoxysilyl group of the silicone oligomer Silicone immobilization technology is not sufficient, and it is difficult to maintain the original performance due to the detachment of modified silicone over time.

用于解决问题的手段means of solving problems

对于本发明而言,本发明所要解决的问题在于,在这样的情况下,使具有键合于碳原子的羟基的改性硅油与硅烷偶联剂的有机反应性基团反应,并且使硅烷偶联剂的烷氧基甲硅烷基与有机硅烷氧基低聚物反应,即,将硅烷偶联剂作为两者的固定化剂来使用,由此能够更加牢固地固定。For the present invention, the problem to be solved by the present invention is, in such a case, to react a modified silicone oil having a hydroxyl group bonded to a carbon atom with an organic reactive group of a silane coupling agent, and to make the silane coupling The alkoxysilyl group of the coupling agent reacts with the organosilane alkoxy oligomer, that is, the silane coupling agent is used as an immobilizing agent for both, thereby enabling more firm immobilization.

即,本发明为保护涂装表面的车辆用涂布剂,其由有机硅烷氧基低聚物、固化催化剂、在分子的任一个末端具有甲醇改性基团的硅油、硅烷偶联剂和溶剂构成,并在常温下形成固化被膜。另外,在本发明的车辆用涂布剂中,甲醇改性基团可以为二甲醇。That is, the present invention is a vehicle coating agent for protecting a painted surface, which is composed of a silicone alkoxy oligomer, a curing catalyst, a silicone oil having a methanol modification group at either terminal of the molecule, a silane coupling agent, and a solvent Composition, and form a cured film at room temperature. In addition, in the vehicle coating agent of the present invention, the methanol modifying group may be dimethanol.

并且,在本发明的车辆用涂布剂中,硅烷偶联剂可以使用具有末端异氰酸酯的硅烷偶联剂或者具有末端缩水甘油醚基的硅烷偶联剂。Furthermore, in the vehicle coating agent of the present invention, as the silane coupling agent, a silane coupling agent having a terminal isocyanate or a silane coupling agent having a terminal glycidyl ether group can be used.

另外,在本发明的车辆用涂布剂中,有机硅烷氧基低聚物可以为3.0~15.0质量份,催化剂可以为0.1~2.0质量份,改性硅油可以为1.0~10.0质量份,硅烷偶联剂可以为0.1~1.5质量份,剩余部分可以为溶剂。In addition, in the vehicle coating agent of the present invention, the organosilicon alkoxy oligomer may be 3.0-15.0 parts by mass, the catalyst may be 0.1-2.0 parts by mass, the modified silicone oil may be 1.0-10.0 parts by mass, The linking agent can be 0.1-1.5 parts by mass, and the rest can be a solvent.

而且,本发明的车辆用涂布剂的特征在于,固化催化剂为铝系或者钛系,溶剂为异链烷烃系溶剂或者在异链烷烃系溶剂中添加了少量的有机硅系溶剂而得到的溶剂。Furthermore, the vehicle coating agent of the present invention is characterized in that the curing catalyst is aluminum-based or titanium-based, and the solvent is an isoparaffin-based solvent or a solvent obtained by adding a small amount of a silicone-based solvent to an isoparaffin-based solvent. .

发明效果Invention effect

如上所述的结果是,本发明具有如下的优点:本发明的涂布剂显示了非常优异的初始性能,并且具有非常高的耐久性。因此,本发明的涂布剂为通过对车进行施工而可长期维持优异的效果(滑水性、光滑性、擦伤性、拒水性等)的涂布剂,是非常有用的。As a result of the above, the present invention has the advantage that the coating agent of the present invention exhibits very excellent initial properties and has very high durability. Therefore, the coating agent of the present invention is very useful as a coating agent that can maintain excellent effects (water gliding properties, slipperiness, abrasion resistance, water repellency, etc.) for a long period of time when applied to a vehicle.

具体实施方式Detailed ways

作为能够在本发明中使用的有机硅烷氧基低聚物,可列举出作为分子末端为烷氧基甲硅烷基的低分子有机硅树脂的KC-89S(信越化学工业制)、KR-500(信越化学工业制)、BS-290(旭化成Wacker Silicone制)等。Examples of silicone alkoxy oligomers that can be used in the present invention include KC-89S (manufactured by Shin-Etsu Chemical Co., Ltd.), KR-500 ( Shin-Etsu Chemical Co., Ltd.), BS-290 (manufactured by Asahi Kasei Wacker Silicone), etc.

另外,作为能够在本发明中使用的固化催化剂,只要是促进有机硅烷氧基低聚物的固化反应的物质即可,可列举出酸类、胺类、金属类,尤其优选铝系(DX-9740;信越化学工业制)、钛系(D-25;信越化学工业制)的有机金属化合物。In addition, as the curing catalyst that can be used in the present invention, as long as it is a substance that accelerates the curing reaction of the organosilicon alkoxy oligomer, acids, amines, and metals are listed, and aluminum-based (DX- 9740; Shin-Etsu Chemical Co., Ltd.), titanium-based (D-25; Shin-Etsu Chemical Co., Ltd.) organometallic compound.

作为能够在本发明中使用的具有甲醇改性基团的硅油,可列举出在分子的单侧的末端具有甲醇基的X-22-170BX(信越化学工业制)、X-22-170DX(信越化学工业制)等(下式)。Examples of the silicone oil having a methanol-modified group that can be used in the present invention include X-22-170BX (manufactured by Shin-Etsu Chemical Co., Ltd.), X-22-170DX (manufactured by Shin-Etsu Chemical Co., Ltd.) that has a methanol group at one end of the molecule. Chemical industry system) etc. (below).

能够在本发明中使用的具有甲醇改性基团的硅油是由上式(式中,n为0~100的整数,R1为甲基或丁基等烃基,R2为亚烷基,也可以为在中间夹杂氧原子的氧化烯基)表示的常温下为液体状的物质。The silicone oil with methanol-modified group that can be used in the present invention is composed of the above formula (where n is an integer of 0 to 100, R1 is a hydrocarbon group such as methyl or butyl, R2 is an alkylene group, and It may be a substance that is liquid at normal temperature represented by an oxyalkylene group interspersed with oxygen atoms).

另外,可以代替甲醇改性基团而使用具有二甲醇改性基团的硅油,作为这样的具有二甲醇改性基团的硅油,可列举出在分子的单侧的末端具有二甲醇基的X-22-176DX(信越化学工业制)、X-22-176F等。In addition, a silicone oil having a dimethanol modifying group can be used instead of a carbinol modifying group, and examples of such a silicone oil having a dimethanol modifying group include X having a dimethanol group at one end of the molecule. -22-176DX (manufactured by Shin-Etsu Chemical Industry), X-22-176F, etc.

Figure BDA00003483497800032
Figure BDA00003483497800032

能够在本发明中使用的具有二甲醇改性基团的硅油是由上式(式中,n为0~100的整数,R3为甲基或丁基等烃基,R4为亚烷基,也可以为在中间夹杂氧原子的氧化烯基。R5以及R6为亚烷基)表示的常温下为液体状的物质。The silicone oil with dimethanol modified groups that can be used in the present invention is composed of the above formula (where n is an integer of 0 to 100, R3 is a hydrocarbon group such as methyl or butyl, R4 is an alkylene group, It may also be an oxyalkylene group interspersed with oxygen atoms. R 5 and R 6 are alkylene groups) that are liquid at normal temperature.

硅烷偶联剂通常为由有机物和硅构成的化合物,由于在分子中具有两种以上的不同的反应基团,因此硅烷偶联剂作为将通常非常难以连接的有机材料与无机材料进行连接的中间物质起作用,作为能够在本发明中使用的硅烷偶联剂,任何硅烷偶联剂均可,但优选使用具有末端异氰酸酯的偶联剂或者具有末端缩水甘油醚基的偶联剂。Silane coupling agents are usually compounds composed of organic matter and silicon. Since there are more than two different reactive groups in the molecule, silane coupling agents are used as an intermediate for connecting organic materials that are usually very difficult to connect with inorganic materials. As the silane coupling agent that can be used in the present invention, any silane coupling agent may be used, but it is preferable to use a coupling agent having a terminal isocyanate group or a coupling agent having a terminal glycidyl ether group.

另外,作为能够在本发明中使用的溶剂,可列举出正链烷烃系、异链烷烃系的石油系溶剂等。In addition, examples of solvents that can be used in the present invention include n-paraffin-based and iso-paraffin-based petroleum-based solvents, and the like.

特别是,优选使用在异链烷烃系溶剂中添加了少量的有机硅系溶剂而得到的溶剂。In particular, it is preferable to use a solvent obtained by adding a small amount of a silicone-based solvent to an isoparaffin-based solvent.

以下,列举实施例和比较例,对本发明进一步详细说明,但本发明不受这些例子的限制。Hereinafter, although an Example and a comparative example are given and this invention is demonstrated in more detail, this invention is not limited to these examples.

实施例1Example 1

得到由下述有机硅烷氧基低聚物、催化剂、改性有机硅、硅烷偶联剂、溶剂形成的涂布剂,上述有机硅烷氧基低聚物为KC-89S(信越化学工业制)5.0%、BS-290(旭化成Wacker Silicone制)5.0%,上述催化剂为D-25(钛系,信越化学工业制)0.5%,上述改性有机硅为X-22-176DX(单末端二甲醇型,信越化学工业制)2.0%,上述硅烷偶联剂为KBE-9007(3-异氰酸酯丙基三乙氧基硅烷,信越化学工业制)0.1%,上述溶剂为IPsolvent1620(出光兴产制)87.4%。A coating agent consisting of the following silicone alkoxy oligomer, catalyst, modified silicone, silane coupling agent, and solvent was obtained. The above silicone alkoxy oligomer was KC-89S (manufactured by Shin-Etsu Chemical Co., Ltd.) 5.0 %, BS-290 (manufactured by Asahi Kasei Wacker Silicone) 5.0%, the above-mentioned catalyst is D-25 (titanium series, manufactured by Shin-Etsu Chemical Co., Ltd.) 0.5%, the above-mentioned modified silicone is X-22-176DX (single-end dimethanol type, Shin-Etsu Chemical Co., Ltd.) 2.0%, the above-mentioned silane coupling agent is KBE-9007 (3-isocyanate propyltriethoxysilane, Shin-Etsu Chemical Co., Ltd.) 0.1%, and the above-mentioned solvent is IPsolvent1620 (Idemitsu Co., Ltd.) 87.4%.

实施例2Example 2

得到由下述有机硅烷氧基低聚物、催化剂、改性有机硅、硅烷偶联剂、溶剂形成的涂布剂,上述有机硅烷氧基低聚物为KR-500(信越化学工业制)5.0%、BS-290(旭化成Wacker Silicone制)5.0%,上述催化剂为D-25(钛系,信越化学工业制)1.0%,上述改性有机硅为X-22-176DX(单末端二甲醇型,信越化学工业制)5.0%,上述硅烷偶联剂为KBE-9007(3-异氰酸酯丙基三乙氧基硅烷,信越化学工业制)0.5%,上述溶剂为KF-96L-1CS(信越化学工业制)5.0%、IPsolvent1620(出光兴产制)78.5%。A coating agent consisting of the following silicone alkoxy oligomer, catalyst, modified silicone, silane coupling agent, and solvent was obtained. The above silicone alkoxy oligomer was KR-500 (manufactured by Shin-Etsu Chemical Co., Ltd.) 5.0 %, BS-290 (manufactured by Asahi Kasei Wacker Silicone) 5.0%, the above-mentioned catalyst is D-25 (titanium series, manufactured by Shin-Etsu Chemical Co., Ltd.) 1.0%, the above-mentioned modified silicone is X-22-176DX (single-terminal dimethanol type, Shin-Etsu Chemical Co., Ltd.) 5.0%, the above silane coupling agent is KBE-9007 (3-isocyanate propyltriethoxysilane, Shin-Etsu Chemical Co., Ltd.) 0.5%, the above solvent is KF-96L-1CS (Shin-Etsu Chemical Co., Ltd. ) 5.0%, IPsolvent1620 (manufactured by Idemitsu) 78.5%.

实施例3Example 3

得到由下述有机硅烷氧基低聚物、催化剂、改性有机硅、硅烷偶联剂、溶剂形成的涂布剂,上述有机硅烷氧基低聚物为KR-500(信越化学工业制)5.0%、BS-290(旭化成Wacker Silicone制)5.0%,上述催化剂为DX-9740(铝系,信越化学工业制)1.0%、D-25(钛系,信越化学工业制)0.5%,上述改性有机硅为X-22-176DX(单末端二甲醇型,信越化学工业制)2.0%,上述硅烷偶联剂为KBE-9007(3-异氰酸酯丙基三乙氧基硅烷,信越化学工业制)0.1%,上述溶剂为KF-96L-1CS(信越化学工业制)5.0%、IPsolvent1620(出光兴产制)81.4%。A coating agent consisting of the following silicone alkoxy oligomer, catalyst, modified silicone, silane coupling agent, and solvent was obtained. The above silicone alkoxy oligomer was KR-500 (manufactured by Shin-Etsu Chemical Co., Ltd.) 5.0 %, BS-290 (manufactured by Asahi Kasei Wacker Silicone) 5.0%, the above-mentioned catalyst is DX-9740 (aluminum series, manufactured by Shin-Etsu Chemical Co., Ltd.) 1.0%, D-25 (titanium series, produced by Shin-Etsu Chemical Co., Ltd.) 0.5%, the above-mentioned modification The silicone is X-22-176DX (single-end dimethanol type, manufactured by Shin-Etsu Chemical Co., Ltd.) 2.0%, and the above-mentioned silane coupling agent is KBE-9007 (3-isocyanate propyltriethoxysilane, manufactured by Shin-Etsu Chemical Co., Ltd.) 0.1% %, the above solvents are KF-96L-1CS (manufactured by Shin-Etsu Chemical Co., Ltd.) 5.0%, IPsolvent1620 (manufactured by Idemitsu Kogyo) 81.4%.

实施例4Example 4

得到由下述有机硅烷氧基低聚物、催化剂、改性有机硅、硅烷偶联剂、溶剂形成的涂布剂,上述有机硅烷氧基低聚物为BS-290(旭化成WackerSilicone制)10.0%,上述催化剂为DX-9740(铝系,信越化学工业制)1.0%,上述改性有机硅为X-22-176F(单末端二甲醇型,信越化学工业制)5.0%,上述硅烷偶联剂为KBE-9007(3-异氰酸酯丙基三乙氧基硅烷,信越化学工业制)0.5%,上述溶剂为KF-96L-1CS(信越化学工业制)5.0%、IPsolvent1620(出光兴产制)78.3%。A coating agent consisting of the following silicone alkoxy oligomer, catalyst, modified silicone, silane coupling agent, and solvent was obtained. The above silicone alkoxy oligomer was 10.0% of BS-290 (manufactured by Asahi Kasei Wacker Silicone) , the above-mentioned catalyst is DX-9740 (aluminum type, manufactured by Shin-Etsu Chemical Co., Ltd.) 1.0%, the above-mentioned modified silicone is X-22-176F (single-end dimethanol type, manufactured by Shin-Etsu Chemical Co., Ltd.) 5.0%, the above-mentioned silane coupling agent 0.5% of KBE-9007 (3-isocyanate propyl triethoxysilane, manufactured by Shin-Etsu Chemical Co., Ltd.), 5.0% of the above-mentioned solvent, KF-96L-1CS (manufactured by Shin-Etsu Chemical Co., Ltd.), 78.3% of IPsolvent1620 (manufactured by Idemitsu Kogyo Co., Ltd.) .

实施例5Example 5

得到由下述有机硅烷氧基低聚物、催化剂、改性有机硅、硅烷偶联剂、溶剂形成的涂布剂,上述有机硅烷氧基低聚物为KR-500(信越化学工业制)5.0%、BS-290(旭化成Wacker Silicone制)5.0%,上述催化剂为DX-9740(铝系,信越化学工业制)1.0%、D-25(钛系,信越化学工业制)0.2%,上述改性有机硅为X-22-170BX(单末端甲醇基型,信越化学工业制)5.0%,上述硅烷偶联剂为KBE-9007(3-异氰酸酯丙基三乙氧基硅烷,信越化学工业制)0.5%,上述溶剂为IPsolvent1620(出光兴产制)83.3%。A coating agent consisting of the following silicone alkoxy oligomer, catalyst, modified silicone, silane coupling agent, and solvent was obtained. The above silicone alkoxy oligomer was KR-500 (manufactured by Shin-Etsu Chemical Co., Ltd.) 5.0 %, BS-290 (manufactured by Asahi Kasei Wacker Silicone) 5.0%, the above-mentioned catalyst is DX-9740 (aluminum series, manufactured by Shin-Etsu Chemical Co., Ltd.) 1.0%, D-25 (titanium series, produced by Shin-Etsu Chemical Co., Ltd.) 0.2%, the above-mentioned modification The silicone is X-22-170BX (single-terminal carbinol type, manufactured by Shin-Etsu Chemical Co., Ltd.) 5.0%, and the above-mentioned silane coupling agent is KBE-9007 (3-isocyanate propyl triethoxysilane, manufactured by Shin-Etsu Chemical Co., Ltd.) 0.5% %, the above solvent is IPsolvent1620 (manufactured by Idemitsu) 83.3%.

实施例6Example 6

得到由下述有机硅烷氧基低聚物、催化剂、改性有机硅、硅烷偶联剂、溶剂形成的涂布剂,上述有机硅烷氧基低聚物为BS-290(旭化成WackerSilicone制)10.0%,上述催化剂为DX-9740(铝系,信越化学工业制)1.0%、D-25(钛系,信越化学工业制)0.5%,上述改性有机硅为X-22-170BX(单末端甲醇基型,信越化学工业制)5.0%,上述硅烷偶联剂为KBM-403(3-缩水甘油醚氧基丙基三甲氧基硅烷,信越化学工业制)0.5%,上述溶剂为KF-96L-1CS(信越化学工业制)5.0%、IPsolvent1620(出光兴产制)78.0%。A coating agent consisting of the following silicone alkoxy oligomer, catalyst, modified silicone, silane coupling agent, and solvent was obtained. The above silicone alkoxy oligomer was 10.0% of BS-290 (manufactured by Asahi Kasei Wacker Silicone) , the above-mentioned catalyst is DX-9740 (aluminum series, Shin-Etsu Chemical Co., Ltd.) 1.0%, D-25 (titanium series, Shin-Etsu Chemical Co., Ltd.) 0.5%, and the above-mentioned modified silicone is X-22-170BX (single-terminal methanol group type, manufactured by Shin-Etsu Chemical Co., Ltd.) 5.0%, the above-mentioned silane coupling agent is KBM-403 (3-glycidyloxypropyltrimethoxysilane, manufactured by Shin-Etsu Chemical Co., Ltd.) 0.5%, and the above-mentioned solvent is KF-96L-1CS (Shin-Etsu Chemical Industry Co., Ltd.) 5.0%, IPsolvent1620 (Idemitsu Kogyo Co., Ltd.) 78.0%.

(参考例1)(reference example 1)

得到由下述有机硅烷氧基低聚物、催化剂、改性有机硅、溶剂形成的涂布剂,上述有机硅烷氧基低聚物为KR-500(信越化学工业制)5.0%,上述催化剂为D-25(钛系,信越化学工业制)0.5%,上述改性有机硅为X-21-5841(双末端硅烷醇型,信越化学工业制)5.0%,上述溶剂为IPsolvent1620(出光兴产制)84.5%。A coating agent comprising the following organosilane alkoxy oligomer, catalyst, modified silicone, and solvent was obtained. D-25 (Titanium-based, manufactured by Shin-Etsu Chemical Co., Ltd.) 0.5%, the above-mentioned modified silicone is X-21-5841 (double-end silanol type, manufactured by Shin-Etsu Chemical Co., Ltd.) 5.0%, and the above-mentioned solvent is IPsolvent1620 (manufactured by Idemitsu Kosho Co., Ltd. ) 84.5%.

(比较例1)(comparative example 1)

得到由下述有机硅烷氧基低聚物、催化剂、溶剂形成的涂布剂,上述有机硅烷氧基低聚物为KC-89S(信越化学工业制)10.0%,上述催化剂为D-25(钛系,信越化学工业制)0.5%,上述溶剂为IPsolvent1620(出光兴产制)89.5%。A coating agent consisting of the following organosilane alkoxy oligomer, catalyst, and solvent was obtained. system, Shin-Etsu Chemical Co., Ltd.) 0.5%, and the above solvent is IPsolvent1620 (Idemitsu Kogyo Co., Ltd.) 89.5%.

(比较例2)(comparative example 2)

得到由下述有机硅烷氧基低聚物、催化剂、改性有机硅、溶剂形成的涂布剂,上述有机硅烷氧基低聚物为KR-500(信越化学工业制)10.0%,上述催化剂为D-25(钛系,信越化学工业制)1.0%,上述改性有机硅为X-22-176DX(单末端二甲醇型,信越化学工业制)2.0%,上述溶剂为KF-96L-1CS(信越化学工业制)5.0%、IPsolvent1620(出光兴产制)82.0%。A coating agent comprising the following organosilane alkoxy oligomer, catalyst, modified silicone, and solvent was obtained. D-25 (Titanium-based, Shin-Etsu Chemical Co., Ltd.) 1.0%, the above-mentioned modified silicone is X-22-176DX (single-end dimethanol type, Shin-Etsu Chemical Co., Ltd.) 2.0%, and the above-mentioned solvent is KF-96L-1CS ( Shin-Etsu Chemical Industry Co., Ltd.) 5.0%, IPsolvent1620 (Idemitsu Kogyo Co., Ltd.) 82.0%.

(比较例3)(comparative example 3)

得到由下述有机硅烷氧基低聚物、催化剂、改性有机硅、溶剂形成的涂布剂,上述有机硅烷氧基低聚物为KC-89S(信越化学工业制)10.0%,上述催化剂为DX-9740(铝系,信越化学工业制)0.5%,上述改性有机硅为X-22-170BX(单末端甲醇基型,信越化学工业制)2.0%,上述溶剂为KF-96L-1CS(信越化学工业制)5.0%、IPsolvent1620(出光兴产制)82.5%。A coating agent comprising the following silicone alkoxy oligomer, a catalyst, a modified silicone, and a solvent was obtained. DX-9740 (aluminum type, manufactured by Shin-Etsu Chemical Co., Ltd.) 0.5%, the above-mentioned modified silicone is X-22-170BX (single-terminal carbinyl type, manufactured by Shin-Etsu Chemical Co., Ltd.) 2.0%, and the above-mentioned solvent is KF-96L-1CS ( Shin-Etsu Chemical Industry Co., Ltd.) 5.0%, IPsolvent1620 (Idemitsu Kogyo Co., Ltd.) 82.5%.

(比较例4)(comparative example 4)

得到由下述有机硅烷氧基低聚物、催化剂、改性有机硅、溶剂形成的涂布剂,上述有机硅烷氧基低聚物为KR-500(信越化学工业制)10.0%,上述催化剂为DX-9740(铝系,信越化学工业制)1.0%,上述改性有机硅为X-22-160AS(双末端甲醇基型,信越化学工业制)5.0%,上述溶剂为IPsolvent1620(出光兴产制)84.0%。A coating agent comprising the following organosilane alkoxy oligomer, catalyst, modified silicone, and solvent was obtained. DX-9740 (aluminum type, manufactured by Shin-Etsu Chemical Co., Ltd.) 1.0%, the above-mentioned modified silicone is X-22-160AS (double-terminal carbinyl type, manufactured by Shin-Etsu Chemical Co., Ltd.) 5.0%, and the above-mentioned solvent is IPsolvent1620 (manufactured by Idemitsu Kogyo Co., Ltd. ) 84.0%.

表1Table 1

(表1)A:有机硅烷氧基低聚物,B:催化剂,C:改性有机硅,D:硅烷偶联剂,E:溶剂(Table 1) A: Silicone alkoxy oligomer, B: Catalyst, C: Modified silicone, D: Silane coupling agent, E: Solvent

各涂布液通过如下所示的方法对基材进行处理,就各评价项目按下示的方法和结果进行判定,并汇总于表1。The substrates were treated with the methods shown below for each coating solution, and the evaluation items were judged according to the methods and results shown below, and are summarized in Table 1.

以底涂层与顶涂层层叠的形态将由丙烯酸-三聚氰胺系树脂形成的汽车用涂料进行烘烤涂装来制作涂装板表面,对所得涂装板表面使用含浸了各涂布液的织物均匀地进行处理。处理后在常温下干燥5分钟,用新织物擦拭后进行精加工使得不均消除,进一步在常温下干燥1周。The surface of the painted panel is prepared by baking an automotive paint made of acrylic-melamine resin in a laminated form of a base coat and a top coat, and a fabric impregnated with each coating solution is used to uniformly coat the surface of the coated panel. be processed. After the treatment, it was dried at normal temperature for 5 minutes, wiped with a new cloth, and finished to eliminate unevenness, and further dried at normal temperature for 1 week.

(初始性能评价)(initial performance evaluation)

(光滑性)(smoothness)

通过用市售的毛巾擦涂布处理表面,确认处理表面的光滑性,按下述进行评价。The smoothness of the treated surface was confirmed by wiping the coated treated surface with a commercially available towel, and evaluated as follows.

◎:表面光滑且滑动良好◎: The surface is smooth and slides well

○:光滑感稍降低但仍会滑动○: Slightly less slippery but still slips

△:光滑感几乎没有且难滑动△: There is almost no slippery feeling and it is difficult to slide

×:滑动差且挂住×: Poor sliding and stuck

(耐擦伤性)(scratch resistance)

通过用市售的毛巾擦涂布处理表面,确认处理表面的耐擦伤性,按下述进行评价。The scratch resistance of the treated surface was confirmed by rubbing the coated treated surface with a commercially available towel, and evaluated as follows.

◎:伤痕几乎察觉不出◎: Scars are hardly noticeable

○:稍带伤痕但不太显眼○: slightly scratched but not conspicuous

△:伤痕显眼△: Scars are conspicuous

×:伤痕较多×: many scars

(拒水性)(water repellency)

对涂布处理表面的排斥水的状态,使用接触角仪测定水的接触角,按下述进行评价。Regarding the state of water repellency on the coating-treated surface, the water contact angle was measured using a contact angle meter, and evaluated as follows.

◎:95°以上◎: Above 95°

○:90°以上且94°以下○: More than 90° and less than 94°

△:85°以上且89°以下△: More than 85° and less than 89°

×:84°以下×: Below 84°

(滑水性)(water skiing)

对涂布处理表面的水滴滑动的状态,使用接触角仪测定水的滑落角,按下述进行评价。The sliding state of water droplets on the coating-treated surface was measured by using a contact angle meter to evaluate the sliding angle of water as follows.

◎:25°以下◎: Below 25°

○:26°以上且30°以下○: More than 26° and less than 30°

△:31°以上且35°以下△: More than 31° and less than 35°

×:36°以上×: more than 36°

(耐久性评价)(durability evaluation)

参考“JIS K23969.12拒水持续性的评价”来确认耐久性。洗涤液通过碳酸钠和十二烷基苯磺酸钠来制备(pH为11),将超细织物卷至500g的负载,用洗涤机试验机进行500次来回洗涤,然后对表面光滑性、耐擦伤性、拒水性、滑水性的耐久性与初始性能评价同样地进行了确认。另外,还确认了500次来回洗涤后的由超细织物造成的伤痕。Durability is confirmed by referring to "JIS K23969.12 Evaluation of Water Repellency Sustainability". The washing liquid is prepared by sodium carbonate and sodium dodecylbenzenesulfonate (pH 11), the superfine fabric is rolled up to a load of 500g, and the washing machine test machine is used for 500 times of back and forth washing, and then the surface smoothness, durability Scratch resistance, water repellency, and durability of hydroplaning properties were confirmed in the same manner as in the initial performance evaluation. In addition, scratches caused by ultrafine fabrics after 500 back and forth washings were also confirmed.

(光滑耐久性)(smooth durability)

通过用市售的毛巾擦洗涤后的涂布处理表面,确认处理表面的光滑性,按下述进行评价。The smoothness of the treated surface was confirmed by wiping the coated treated surface after washing with a commercially available towel, and evaluated as follows.

◎:表面光滑且滑动良好◎: The surface is smooth and slides well

○:光滑感稍降低但仍会滑动○: Slightly less slippery but still slips

△:光滑感几乎没有且难滑动△: There is almost no slippery feeling and it is difficult to slide

×:滑动差且挂住×: Poor sliding and stuck

(耐擦伤耐久性)(scratch resistance durability)

通过用市售的毛巾擦洗涤后的涂布处理表面,确认处理表面的耐擦伤性,按下述进行评价。The scratch resistance of the treated surface was confirmed by wiping the washed coated surface with a commercially available towel, and evaluated as follows.

◎:伤痕几乎察觉不出◎: Scars are hardly noticeable

○:稍带伤痕但不太显眼○: slightly scratched but not conspicuous

△:伤痕显眼△: Scars are conspicuous

×:伤痕较多×: many scars

(拒水耐久性)(water repellency durability)

对涂布处理表面的排斥水的状态,使用接触角仪测定水的接触角,按下述进行评价。Regarding the state of water repellency on the coating-treated surface, the water contact angle was measured using a contact angle meter, and evaluated as follows.

◎:95°以上◎: Above 95°

○:90°以上且94°以下○: More than 90° and less than 94°

△:85°以上且89°以下△: More than 85° and less than 89°

×:84°以下×: Below 84°

(滑水耐久性)(water skiing durability)

对涂布处理表面的水滴滑动的状态,使用接触角仪测定水的滑落角,按下述进行评价。The sliding state of water droplets on the coating-treated surface was measured by using a contact angle meter to evaluate the sliding angle of water as follows.

◎:25°以下◎: Below 25°

○:26°以上且30°以下○: More than 26° and less than 30°

△:31°以上且35°以下△: More than 31° and less than 35°

×:36°以上×: more than 36°

(由洗涤造成的伤痕的确认)(Confirmation of scars caused by washing)

在用洗涤机试验机进行的耐久性确认试验中,将500次来回洗涤后的涂布处理表面的状态通过显微镜放大50倍进行确认,按下述进行评价。In the durability confirmation test with a washing machine tester, the state of the coated surface after 500 back-and-forth washings was confirmed with a microscope at 50 times magnification and evaluated as follows.

◎:伤痕几乎察觉不出。⊚: Scars are hardly noticeable.

○:稍见浅的伤痕。◯: Shallow scratches are slightly seen.

△:伤痕多见。△: Scars are common.

×:表面白化。×: Surface whitening.

表2Table 2

Figure BDA00003483497800101
Figure BDA00003483497800101

通过上表可知,由于实施例中示出的涂布剂与参考例相比显示优异的初始性能,因此表明用二甲醇进行了改性的硅油非常优异。另外,由于与比较例相比耐久性能优异,因此可知硅烷偶联剂发挥了非常优异的作为固定化剂的作用。As can be seen from the above table, since the coating agents shown in the examples show excellent initial properties compared with the reference examples, it is shown that the silicone oil modified with dimethanol is very excellent. Moreover, since it is excellent in durability compared with a comparative example, it turns out that a silane coupling agent exerts the very excellent function as an immobilization agent.

产业上的可利用性Industrial availability

由于本发明的车辆用涂布剂无论在拒水性上、还是在光滑性、擦伤性上、抑或在拒水性、滑水性上均具有优异的特性,其能够长期保护车辆的涂装表面,因此在产业上有极高的可利用性。Since the vehicle coating agent of the present invention has excellent characteristics in terms of water repellency, slipperiness, scratch resistance, or water repellency and water skid property, it can protect the painted surface of the vehicle for a long time, so It has high availability in industry.

Claims (5)

1.一种保护涂装表面的车辆用涂布剂,其由有机硅烷氧基低聚物、固化催化剂、在分子的任一个末端具有甲醇改性基团的硅油、硅烷偶联剂和溶剂构成,并在常温下形成固化被膜。1. A vehicle coating agent for protecting a painted surface, which is composed of a silicone alkoxy oligomer, a curing catalyst, a silicone oil having a methanol-modified group at either end of the molecule, a silane coupling agent, and a solvent , and form a cured film at room temperature. 2.根据权利要求1所述的保护涂装表面的车辆用涂布剂,其中,甲醇改性基团为二甲醇。2. The vehicle coating agent for protecting a painted surface according to claim 1, wherein the methanol modifying group is dimethanol. 3.根据权利要求1或2所述的保护涂装表面的车辆用涂布剂,其中,硅烷偶联剂为具有末端异氰酸酯的硅烷偶联剂或者具有末端缩水甘油醚基的硅烷偶联剂。3. The vehicle coating agent for protecting a painted surface according to claim 1 or 2, wherein the silane coupling agent is a silane coupling agent having a terminal isocyanate or a silane coupling agent having a terminal glycidyl ether group. 4.根据权利要求1至3中任一项所述的保护涂装表面的车辆用涂布剂,其中,有机硅烷氧基低聚物为3.0~15.0质量份,催化剂为0.1~2.0质量份,改性硅油为1.0~10.0质量份,硅烷偶联剂为0.1~1.5质量份,剩余部分为溶剂。4. The vehicle coating agent for protecting a painted surface according to any one of claims 1 to 3, wherein the organosilicon alkoxy oligomer is 3.0 to 15.0 parts by mass, the catalyst is 0.1 to 2.0 parts by mass, The amount of modified silicone oil is 1.0-10.0 parts by mass, the amount of silane coupling agent is 0.1-1.5 parts by mass, and the rest is solvent. 5.根据权利要求1至4中任一项所述的保护涂装表面的车辆用涂布剂,其特征在于,固化催化剂为铝系或者钛系,溶剂为异链烷烃系溶剂或者在异链烷烃系溶剂中添加了少量的有机硅系溶剂而得到的溶剂。5. The vehicle coating agent for protecting the painted surface according to any one of claims 1 to 4, wherein the curing catalyst is aluminum-based or titanium-based, and the solvent is an isoparaffin-based solvent or an isoparaffin solvent. A solvent obtained by adding a small amount of a silicone-based solvent to an alkane-based solvent.
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