JPH0356576A - Silicon alkoxide-based coating material - Google Patents
Silicon alkoxide-based coating materialInfo
- Publication number
- JPH0356576A JPH0356576A JP19463889A JP19463889A JPH0356576A JP H0356576 A JPH0356576 A JP H0356576A JP 19463889 A JP19463889 A JP 19463889A JP 19463889 A JP19463889 A JP 19463889A JP H0356576 A JPH0356576 A JP H0356576A
- Authority
- JP
- Japan
- Prior art keywords
- silicon alkoxide
- parts
- curing
- solution containing
- coating
- 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
- 239000011248 coating agent Substances 0.000 title claims abstract description 33
- -1 Silicon alkoxide Chemical class 0.000 title claims abstract description 25
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 25
- 239000010703 silicon Substances 0.000 title claims abstract description 25
- 238000000576 coating method Methods 0.000 title abstract description 18
- 239000000463 material Substances 0.000 title abstract 3
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 12
- 150000003377 silicon compounds Chemical class 0.000 abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 4
- 125000000217 alkyl group Chemical group 0.000 abstract description 4
- 239000008119 colloidal silica Substances 0.000 abstract description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 14
- 239000003054 catalyst Substances 0.000 description 13
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 12
- 239000000243 solution Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
- 238000002156 mixing Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 238000007865 diluting Methods 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- JJQZDUKDJDQPMQ-UHFFFAOYSA-N dimethoxy(dimethyl)silane Chemical compound CO[Si](C)(C)OC JJQZDUKDJDQPMQ-UHFFFAOYSA-N 0.000 description 2
- 238000005227 gel permeation chromatography Methods 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 2
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000004703 alkoxides Chemical group 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- FOCAUTSVDIKZOP-UHFFFAOYSA-N chloroacetic acid Chemical compound OC(=O)CCl FOCAUTSVDIKZOP-UHFFFAOYSA-N 0.000 description 1
- 229940106681 chloroacetic acid Drugs 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、無機系塗料、特に、ケイ素アルコキシドを
主或分とし、耐候性および硬度に優れた塗膜を形威する
ケイ素アルコキシド系コ、一ティング剤に関する．
〔従来の技術〕
ケイ素アルコキシド系コーティング剤は、耐候性があり
、かつ、高硬度な塗膜が得られることから、たとえば、
特開昭５１−２７３６号公報および特開昭５６−１２５
４６６号公報等で示されるように種々研究されてきた．
（発明が解決しようとする課題〕
しかしながら、これら従来のケイ素アルコキシド系コー
ティング剤は、塗膜を形威するためには、加熱（通常、
１００℃以上の温度が必要）する必要があった．このた
め、ケイ素アルコキシド系コーティング剤は、使用範囲
が限定されているのが現状である．
そこで、この発明は、耐候性および硬度に優れた塗膜を
形或するというケイ素アルコキシド系コーティング剤の
特徴を損なわず、焼付けを行わずとも塗膜を形戒するこ
とができるケイ素アルコキシド系コーティング剤を提供
することを課題とする．
〔課題を解決するための手段〕
上記課題を解決するために、この発明にかかるケイ素ア
ルコキシド系コーティング剤は、少なくともケイ素アル
コキシドを含む主戒分液と、少なくとも硬化剤を含む硬
化液との組み合わせからなり、ｐＨ値が２．８未満とな
るようにされていて、常温硬化するようになっている．
主成分液の必須或分（または主原料）であるケイ素アル
コキシドは、たとえば、次の一般式■で表されるもので
ある。[Detailed Description of the Invention] [Industrial Application Field] This invention relates to inorganic paints, particularly silicon alkoxide paints that mainly contain silicon alkoxides and form coating films with excellent weather resistance and hardness. Regarding tinging agents. [Prior Art] Silicon alkoxide coating agents are weather resistant and provide a highly hard coating film, so for example,
JP-A-51-2736 and JP-A-56-125
Various studies have been conducted, as shown in Publication No. 466, etc. (Problems to be Solved by the Invention) However, in order to form a coating film, these conventional silicon alkoxide coating agents require heating (usually
(requires a temperature of 100℃ or higher). For this reason, the scope of use of silicon alkoxide coating agents is currently limited. Therefore, the present invention aims to provide a silicon alkoxide coating agent that does not impair the characteristics of silicon alkoxide coating agents, such as forming a coating film with excellent weather resistance and hardness, and that can maintain the shape of a coating film without baking. The task is to provide the following. [Means for Solving the Problems] In order to solve the above problems, the silicon alkoxide-based coating agent according to the present invention is obtained by combining a main separation liquid containing at least silicon alkoxide and a curing liquid containing at least a curing agent. It has a pH value of less than 2.8 and is cured at room temperature. Silicon alkoxide, which is an essential part (or main raw material) of the main component liquid, is represented by the following general formula (2), for example.
Ｒ’．Ｓ ｉ （ＯＲ”）４−ｎ −・・■■
式中、ｎは０〜３の数、Ｒｌは炭素数１〜４のアルキル
基、フェニル基（これらは、アミノ基、アクリル基など
を含んでいてもよい）などの１価の基、Ｒ３は炭素数１
〜４のアルキル基である＠ Ｒ’ ％ Ｒ”がそれぞれ
複数個の場合には、すべてのＲ１またはＲ３が同じ基で
あってもよく、１以上が異なっていてもよい．
さらに、より安定な塗膜を得るためには、主威分液は、
（ａ） 上記一般式■においてｎ−Ｑの場合で表され
るケイ素化合物および／またはコロイド状シリヵを２０
〜２００重量部（以下、「重量部」を単に「部」という
）、
（ｂ） 上記一般式■においてｎ−１の場合で表され
るケイ素化合物１００部、
（Ｃ） 上記一般式■においてｎ＝２の場合で表され
るケイ素化合物０〜８０部
の各或分からなるものが好ましい。R'. S i (OR”)4-n −・・■■
In the formula, n is a number of 0 to 3, Rl is a monovalent group such as an alkyl group having 1 to 4 carbon atoms or a phenyl group (which may contain an amino group, an acrylic group, etc.), and R3 is a Carbon number 1
When there are a plurality of @R' % R'' which are alkyl groups of ~4, all R1 or R3 may be the same group, or one or more may be different.Furthermore, more stable In order to obtain a coating film, the main liquid separation method is as follows: (a) silicon compound and/or colloidal silica represented by n-Q in the above general formula (2);
~200 parts by weight (hereinafter, "parts by weight" is simply referred to as "parts"), (b) 100 parts of a silicon compound represented by n-1 in the above general formula (C) n in the above general formula Preferably, the silicon compound consists of 0 to 80 parts of the silicon compound represented by 2.
主威分液は、ケイ素アルコキシドに化学量論的に不足す
る量（たとえば、非常に不足する量）で硬化剤および触
媒を添加してケイ素アルコキシド系プレポリマー（ケイ
素アルコキシドの加水分解、縮金物で、末端アルコキシ
ド）を生戒させて調製される．ここで使用される硬化剤
および触媒としては、たとえば、後述のものが挙げられ
る．前記ブレボリマーの分子量としては、特に限定はな
いが、好ましくは、Ｍｗ（重量平均分子量・・・ポリス
チレン換算）が２００〜６００がよい。主成分液には、
その他、目的に応じてコロイド状シリヵ、無機物のフィ
ラー、顔料（無機顔料および／または有機顔料）、希釈
溶剤、増粘剤、界面活性剤等種々の添加剤が１種以上加
えられてもよい。ただし、主成分液中には、残存水分が
ないよう注意する．
上記のように調製された主成分液は、たとえば、固形分
濃度が１０〜５０−ｔ％となるようにされる．
硬化液は、硬化剤を必須威分とし、その他必要に応じて
、触媒、希釈溶剤、コロイド状シリヵ等種々の威分が１
種以上配合されてもよい．前記硬化剤としては、特に限
定はないが、たとえば、水が用いられる．硬化剤の配合
割合は、特に限定されないが、たとえば、主威分液が硬
化反応などの反応、すなわち、ケイ素アルコキシドやア
ルコキシド末端ブレボリマーが加水分解、縮合してシロ
キサンブレボリマーを形威し、塗膜を形或するのに必要
な量で設定される．
この発明で使用される触媒は特に限定されないが、たと
えば、塩酸、燐酸、硫酸等の無機酸や、蟻酸、酢酸、ク
ロロ酢酸等の有機酸の希薄溶液などの酸性触媒を単独で
あるいは複数種併せて使用することができる。Main liquid separation is a silicon alkoxide-based prepolymer (hydrolysis of silicon alkoxide, metal condensation product, , terminal alkoxide). Examples of the curing agent and catalyst used here include those described below. The molecular weight of the brevolimer is not particularly limited, but preferably has an Mw (weight average molecular weight...in terms of polystyrene) of 200 to 600. The main component liquid is
In addition, one or more of various additives such as colloidal silica, inorganic fillers, pigments (inorganic pigments and/or organic pigments), diluting solvents, thickeners, surfactants, etc. may be added depending on the purpose. However, be careful that there is no residual moisture in the main component liquid. The main component liquid prepared as described above has a solid content concentration of, for example, 10 to 50-t%. The curing liquid contains a curing agent as an essential component, and various other components as necessary, such as a catalyst, a diluting solvent, and colloidal silica.
More than one species may be combined. The curing agent is not particularly limited, but water may be used, for example. The blending ratio of the curing agent is not particularly limited; It is set to the amount necessary to form the membrane. The catalyst used in this invention is not particularly limited, but for example, acidic catalysts such as dilute solutions of inorganic acids such as hydrochloric acid, phosphoric acid, and sulfuric acid, and organic acids such as formic acid, acetic acid, and chloroacetic acid may be used alone or in combination. can be used.
また、硬化液としては、希釈溶剤を含んだものを用いる
方が望ましい．これは、水、触媒のみで添加した場合、
顔料等の再凝集が起こるおそれがあるからである．
前記希釈溶剤としては、メタノール、エタノール、イソ
プロパノール（ＩＰＡ）等のアルコール、エチレングリ
コール、エチレングリコールモノメチルエーテル等が例
示され、これらは、単独であるいは複数で使用される。Furthermore, it is preferable to use a curing liquid that contains a diluting solvent. When added with only water and catalyst,
This is because there is a risk of re-agglomeration of pigments, etc. Examples of the diluting solvent include alcohols such as methanol, ethanol, and isopropanol (IPA), ethylene glycol, and ethylene glycol monomethyl ether, which may be used alone or in combination.
主戒分液と硬化液とは、使用前は二液であり、使用時に
、互いに混合される．この発明のケイ素アルコキシド系
コーティング剤は、混合後（主戒分液と硬化液との二液
のみの場合は、二液混合後であり、主威分液と硬化液以
外にも配合戒分がある場合には、全部を混合した後であ
る）のｐＨ値が２．８未満、好ましくは２．６未満とな
るようにされている．前記ｐＨ値が２．８以上だと、常
温硬化性が発揮されにくい．前記ｐＨ値の下限は、特に
限定されないが、２．０未満になると、常温硬化性が強
すぎて取り扱いに問題が発生することが考えられる。The main separation liquid and the curing liquid are two liquids before use, and are mixed with each other during use. The silicon alkoxide-based coating agent of this invention is applied after mixing (in the case of only two components, the main separation liquid and the curing liquid, after the two-part mixing); In some cases, the pH value of (after mixing everything) is less than 2.8, preferably less than 2.6. If the pH value is 2.8 or higher, room temperature curability is difficult to exhibit. The lower limit of the pH value is not particularly limited, but if it is less than 2.0, room temperature curability may be too strong and problems may occur in handling.
前記ｐＨ値の調整は、どのようにして行ってもよいが、
触媒として上記の酸性触媒を用いる場合には、同酸性触
媒の添加量を調節することにより行うことができる。The pH value may be adjusted in any way, but
When using the above acidic catalyst as a catalyst, this can be done by adjusting the amount of the acidic catalyst added.
この発明のケイ素アルコキシド系コーティング剤は、使
用時に、主威分液、硬化液、その他必要に応じて配合さ
れる戒分を混合し、必要に応じて熟威し、塗装に供され
る。塗装方法は、特に限定されないが、たとえば、スプ
レー塗装、ロール塗装、フローコーター塗装、浸漬塗装
などが挙げられる。塗装後、たとえば、常温で適宜の時
間放置しておくことにより、耐候性および硬度に優れた
塗膜を形威する。このため、焼付けを行う必要がない。At the time of use, the silicon alkoxide coating agent of the present invention is mixed with a main liquid, a curing liquid, and other substances added as necessary, and is aged as necessary, and then used for painting. The coating method is not particularly limited, and examples thereof include spray coating, roll coating, flow coater coating, and dip coating. After painting, a coating film with excellent weather resistance and hardness can be formed by leaving it for a suitable period of time at room temperature, for example. Therefore, there is no need to perform baking.
したがって、この発明のケイ素アルコキシド系コーティ
ング剤は、従来の焼付けを必要とするコーティング剤に
比べると、使用範囲が広くなる．
〔作 用〕
ケイ素アルコキシドと硬化剤とを別々にしておくことに
より、塗膜形戒能が維持される．そして、使用時には、
少なくともケイ素アルコキシドを含む主戒分液と、少な
くとも硬化剤を含む硬化液と混合し、全体としてｐＨ値
が２．８未満となるようにすることにより、常温で硬化
する。Therefore, the silicon alkoxide coating agent of the present invention can be used in a wider range of applications than conventional coating agents that require baking. [Function] By keeping the silicon alkoxide and the curing agent separate, the film-like properties are maintained. And when using,
By mixing the main liquid containing at least silicon alkoxide and the curing liquid containing at least a curing agent so that the overall pH value is less than 2.8, it is cured at room temperature.
以下に、この発明の具体的な実施例および比較例を示す
が、この発明は下記実施例に限定されない．
一実施例１．２および比較例１−
コー−イング゜Ｃ−１の
メチルトリメトキシシラン１００部、テトラエトキシシ
ランｌＯ部、ＩＰＡシリカゾル（触媒化或工業株式会社
製ｒＯｓｃＡＬ１４３２Ｊ、ＳｉＯｓ含有量３０％）６
０部、ジメチルジメトキシシラン２０部、および、Ｉ
ＰＡ２ ８部を混合した．この混合溶液に、触媒として
１規定の塩酸０． ８５部、および、硬化剤として水５
部を加え、２５℃下で５０Ｏｒｐｍで３０分間攪拌して
、Ａ液を調製した。Specific examples and comparative examples of the present invention are shown below, but the present invention is not limited to the following examples. Example 1.2 and Comparative Example 1 - 100 parts of methyltrimethoxysilane from Coing C-1, 10 parts of tetraethoxysilane, IPA silica sol (rOscAL1432J manufactured by Catalyst Kagyo Co., Ltd., SiOs content 30%) 6
0 parts, 20 parts of dimethyldimethoxysilane, and I
8 parts of PA2 were mixed. Add 0.0% of 1N hydrochloric acid as a catalyst to this mixed solution. 85 parts and 5 parts water as a hardening agent
and stirred at 25° C. and 50 rpm for 30 minutes to prepare Solution A.
Ａ液を密栓した容器に入れて２５℃下で７２時間保存し
た後、使用時に、Ａ液１００部に対し、水性シリカゾル
（日産化学工業株式会社製「スノ−テフクスＯＪ ）を
４０部、水２０部、ＩＰＡ４８部、および、触媒として
１規定塩酸を加え、同塩酸で、ｐＨを第１表に示すよう
に調整し、２５℃下、５００ｒｐ−で１ｏ分間攪拌した
後、１時間放置してから、常温硬化性をみた．
一実施例３〜５および比較例２一
コー−イング゜Ｃ−２の゛
メチルトリメトキシシラン１００部、テトラエトキシシ
ラン５部、ＩＰＡシリヵゾル（触媒化戒工業株式会社製
ｒＯｓｃＡＬｌ４３２Ｊ、ＳｉＯ，含有量３０％）６０
部、ジメチルジメトキシシラン２０部、および、ＩＰＡ
２０部を混合した。After storing Solution A in a tightly closed container at 25°C for 72 hours, at the time of use, add 100 parts of Solution A to 40 parts of aqueous silica sol (Snowtefux OJ, manufactured by Nissan Chemical Industries, Ltd.) and 20 parts of water. 1 part, 48 parts of IPA, and 1N hydrochloric acid as a catalyst were added, and the pH was adjusted with the same hydrochloric acid as shown in Table 1, stirred at 25°C and 500 rpm for 10 minutes, and then left for 1 hour. , room temperature curability was observed. 1. Examples 3 to 5 and Comparative Example 2. rOscALl432J, SiO, content 30%) 60
parts, 20 parts of dimethyldimethoxysilane, and IPA
20 parts were mixed.
この混合溶液に、触媒としてｌ規定の塩酸０．８５部、
および、硬化剤として水５部を加え、２５℃下で５０Ｏ
ｒｐｍで３０分間攪拌して、Ａ液を調製した．
Ａ液を密栓した容器に入れて２５℃下で２４時間保存し
た後、Ａ液ｌ００部に対し、酸化チタン（ダイオキサイ
ド〉 ２０部と「ターレンＫＹ−２０００Ｊ （共栄
社油脂化学工業株式会社製）を固形分て０．３部とｒＬ
トセルＳＴＤ− １ ０ ０Ｊ （ダウケミカル社
製）を固形分で０．３部加え、さらに、「フローレンＧ
−６００Ｊ （共栄社油脂化学工業株式会社製〉を０
． ５部添加し、容器内にガラスビーズを添加し、ディ
スパーを用いて２０００ｒｐ屠で１５分間攪拌した．そ
の後、密栓した容器に入れて２５℃で７２時間保存して
、Ｂ液を調製した。To this mixed solution, 0.85 part of l normal hydrochloric acid as a catalyst,
Then, add 5 parts of water as a hardening agent and 500O at 25℃.
Solution A was prepared by stirring at rpm for 30 minutes. After storing Solution A in a tightly closed container at 25°C for 24 hours, 20 parts of titanium oxide (dioxide) and ``Turen KY-2000J (manufactured by Kyoeisha Yushigaku Kogyo Co., Ltd.) were added to 100 parts of Solution A. Solid content: 0.3 parts rL
0.3 parts of Tocel STD-100J (manufactured by Dow Chemical Company) was added as a solid content, and
-600J (manufactured by Kyoeisha Yushi Kagaku Kogyo Co., Ltd.)
．． Glass beads were added into the container and stirred at 2000 rpm for 15 minutes using a disperser. Thereafter, it was stored in a tightly sealed container at 25° C. for 72 hours to prepare Solution B.
使用時に、Ｂ液１００部に対し、水２６部、ＩＰＡ２６
部、ＩＰＡシ’Ｊカゾル１ｏ部、および、触媒として１
規定塩酸を加え、同塩酸で第１表に示すｐ｝｛に調整し
、２５℃下、’ ５ ０ ０ｒｐａ＋ テ１ ０分間攪
拌した後、１時間放置して、常温硬化性をみた．
上記実施例および比較例の各コーティング剤のＡ液中の
プレボリマーのＭＪｌ平均分子量（ポリスチレン換算）
をＧＰＣ （ゲル浸透クロマトグラフィー：東洋ソーダ
■製）により調べたところ、いずれも、２００〜４００
であった．
原材料をすべて混合した後のケイ素アルコキシド系コー
ティング剤の常温硬化性（指触乾燥時間、耐温水性およ
び硬度）を調べて、結果を第１表に示した．
指触乾燥時間は、ＪＩＳの方法にのっとり、軽く指で触
れたときにタック（粘着性）がなくなった時間を調べた
。When using, 26 parts of water and 26 parts of IPA for 100 parts of liquid B.
part, 10 parts of IPA Si'J Kazol, and 1 part as a catalyst.
Normalized hydrochloric acid was added and adjusted to p shown in Table 1 with the same hydrochloric acid, stirred at 25° C. for 500 rpa + 10 min, and then left to stand for 1 hour to examine curing properties at room temperature. MJl average molecular weight (polystyrene equivalent) of prebolimer in liquid A of each coating agent of the above examples and comparative examples
When examined by GPC (gel permeation chromatography: manufactured by Toyo Soda), all of them were 200 to 400.
Met. After all the raw materials were mixed, the room temperature curing properties (touch dry time, hot water resistance, and hardness) of the silicon alkoxide coating agent were investigated, and the results are shown in Table 1. The dry-to-touch time was determined by measuring the time it took for the film to become tack-free when lightly touched with a finger, in accordance with the JIS method.
耐温水性は、実施例および比較例の各コーティング剤を
常温下でアルξナ基板に対して膜厚が１０ｎになるよう
スプレー塗装して、そのまま１週間放置して塗膜形威し
た．その後、温水〈温度６０℃〉にｌＯ日間浸漬した後
の塗膜状態を肉眼で観察して調べた．
硬度は、耐温水性を調べるときと同様にして塗膜形威し
たものについて、ＪＩＳの鉛筆硬度試験を行って調べた
．
第
１
表
第１表にみるように、実施例１〜５の各コーティング剤
は、常温で硬化して台り、耐温水性および硬度も良好で
あった．比較例のものは、常温硬化しなかった．
〔発明の効果〕
この発明にかかるケイ素アルコキシド系コーティング剤
は、以上に述べたように、少なくともケイ素アルコキシ
ドを含む主成分液と、少なくとも硬化剤を含む硬化液と
の組み合わせからなり、ｐＨ値が２．８未満となるよう
にされていて、常温硬化するようになっているので、焼
付けを行わずとも、耐候性および硬度に優れた塗膜が形
戒できるものである．To test hot water resistance, each of the coating agents of Examples and Comparative Examples was spray-coated to an alumina substrate at room temperature to a film thickness of 10 nm, and the coating was left for one week to develop the coating film. Thereafter, the state of the coating film was examined with the naked eye after immersion in warm water (temperature 60°C) for 10 days. The hardness was determined by conducting the JIS pencil hardness test on the coating film formed in the same manner as when testing hot water resistance. Table 1 As shown in Table 1, each of the coating agents of Examples 1 to 5 was cured and stable at room temperature, and had good hot water resistance and hardness. The comparative example did not cure at room temperature. [Effects of the Invention] As described above, the silicon alkoxide coating agent according to the present invention is composed of a combination of a main component liquid containing at least silicon alkoxide and a curing liquid containing at least a curing agent, and has a pH value of 2. Since it is designed to be less than .8 and harden at room temperature, it is possible to produce a coating film with excellent weather resistance and hardness without baking.
Claims (1)
少なくとも硬化剤を含む硬化液との組み合わせからなり
、ｐＨ値が２．８未満となるようにされていて、常温硬
化するようになっているケイ素アルコキシド系コーティ
ング剤。1 A main component liquid containing at least silicon alkoxide;
A silicon alkoxide coating agent, which is composed of a curing liquid containing at least a curing agent, has a pH value of less than 2.8, and is cured at room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19463889A JPH0356576A (en) | 1989-07-26 | 1989-07-26 | Silicon alkoxide-based coating material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19463889A JPH0356576A (en) | 1989-07-26 | 1989-07-26 | Silicon alkoxide-based coating material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0356576A true JPH0356576A (en) | 1991-03-12 |
Family
ID=16327844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19463889A Pending JPH0356576A (en) | 1989-07-26 | 1989-07-26 | Silicon alkoxide-based coating material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0356576A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09505116A (en) * | 1994-03-01 | 1997-05-20 | アステン・インコーポレーテッド | Polyphthalamide monofilament paper machine fabric |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56159256A (en) * | 1980-05-15 | 1981-12-08 | Toyo Tokushu Toryo Kk | Polyalkyl silicate composition |
| JPH02222475A (en) * | 1989-02-23 | 1990-09-05 | Matsushita Electric Works Ltd | Silicon alkoxide coating material |
-
1989
- 1989-07-26 JP JP19463889A patent/JPH0356576A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56159256A (en) * | 1980-05-15 | 1981-12-08 | Toyo Tokushu Toryo Kk | Polyalkyl silicate composition |
| JPH02222475A (en) * | 1989-02-23 | 1990-09-05 | Matsushita Electric Works Ltd | Silicon alkoxide coating material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09505116A (en) * | 1994-03-01 | 1997-05-20 | アステン・インコーポレーテッド | Polyphthalamide monofilament paper machine fabric |
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