JPH01315431A - Surface-treatment of thermosetting resin molded article - Google Patents
Surface-treatment of thermosetting resin molded articleInfo
- Publication number
- JPH01315431A JPH01315431A JP63148837A JP14883788A JPH01315431A JP H01315431 A JPH01315431 A JP H01315431A JP 63148837 A JP63148837 A JP 63148837A JP 14883788 A JP14883788 A JP 14883788A JP H01315431 A JPH01315431 A JP H01315431A
- Authority
- JP
- Japan
- Prior art keywords
- thermosetting resin
- resin molded
- coating composition
- inorganic coating
- molded article
- 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
- 229920005989 resin Polymers 0.000 title claims abstract description 47
- 239000011347 resin Substances 0.000 title claims abstract description 47
- 229920001187 thermosetting polymer Polymers 0.000 title claims abstract description 47
- 238000004381 surface treatment Methods 0.000 title claims description 3
- 239000008199 coating composition Substances 0.000 claims abstract description 44
- 238000000034 method Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 3
- 238000000576 coating method Methods 0.000 abstract description 11
- 239000011248 coating agent Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 6
- 239000002904 solvent Substances 0.000 abstract description 5
- 238000007788 roughening Methods 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000005507 spraying Methods 0.000 abstract description 3
- 244000137852 Petrea volubilis Species 0.000 abstract 1
- 238000004873 anchoring Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000009835 boiling Methods 0.000 description 11
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 229920000877 Melamine resin Polymers 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000012778 molding material Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- 239000008119 colloidal silica Substances 0.000 description 3
- 238000005238 degreasing Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000004640 Melamine resin Substances 0.000 description 2
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010828 elution Methods 0.000 description 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229920006305 unsaturated polyester Polymers 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 229920000298 Cellophane Polymers 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 235000021438 curry Nutrition 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- OUHONEIDEVTEIG-UHFFFAOYSA-N ethyl(methoxy)silane Chemical compound CC[SiH2]OC OUHONEIDEVTEIG-UHFFFAOYSA-N 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 235000021539 instant coffee Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- XPDGHGYGTJOTBC-UHFFFAOYSA-N methoxy(methyl)silicon Chemical compound CO[Si]C XPDGHGYGTJOTBC-UHFFFAOYSA-N 0.000 description 1
- 235000012149 noodles Nutrition 0.000 description 1
- 239000012766 organic filler Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- -1 silane compound Chemical class 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical compound CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 239000000052 vinegar Substances 0.000 description 1
- 235000021419 vinegar Nutrition 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【産業上の利用分野１
本発明は、熱硬化性樹脂成形品の表面を無機質被覆組成
物で処理する方法に関するものである。
【従来の技術】
表面硬度や耐擦傷性、耐汚染性、耐薬品性、耐水性、耐
アーク性、耐トラツキング性など成形品の表面特性を改
善するために、成形品の表面に無機質被覆組成物をコー
トすることが、特公昭５８−５０２６７号公報などにみ
ちれるように従来から検討されている。[Industrial Application Field 1] The present invention relates to a method for treating the surface of a thermosetting resin molded article with an inorganic coating composition. [Prior art] In order to improve the surface properties of molded products such as surface hardness, scratch resistance, stain resistance, chemical resistance, water resistance, arc resistance, and tracking resistance, an inorganic coating composition is applied to the surface of molded products. BACKGROUND ART Coating of objects has been studied in the past, as seen in Japanese Patent Publication No. 58-50267.
しかし、熱可塑性樹脂成形品においては上記特公昭５Ｂ
−５０２６７号公報などのように無機質被覆組成物をコ
ートすることは可能であるが、熱硬化性樹脂成形品の場
合には無機質被覆組成物との密着性が悪く、容易に無機
質被覆組成物が熱硬化性樹脂成形品から剥離して実用に
酎えないのが現状である。
本発明は上記の点に鑑みて為されたものであり、熱硬化
性樹脂成形品と無機質被覆組成物との密着性を高めるよ
うにすることを目的とするものである。However, in the case of thermoplastic resin molded products,
Although it is possible to coat a thermosetting resin molded article with an inorganic coating composition as described in Japanese Patent No. 50267, the adhesion with the inorganic coating composition is poor and the inorganic coating composition is easily coated. At present, it peels off from thermosetting resin molded products, making it unusable for practical use. The present invention has been made in view of the above points, and an object of the present invention is to improve the adhesion between a thermosetting resin molded article and an inorganic coating composition.
本発明に係る熱硬化性樹脂成形品の表面処理法は、熱硬
化性樹脂成形品の表面を粗面化処理し、粗面においで熱
硬化性樹脂成形品の表面にＳａ質被被覆組成物塗布して
硬化させることを特徴とするものである。
以下本発明の詳細な説明する。
本発明において用いる無機質被覆組成物とじては、熱硬
化性を有し有機溶媒中にゾル状に分散された状態のもの
を用いることができるものであり、特公昭５８−５０２
６７号公報や特開昭５７−７６０３４号公報などに開示
される従来から公知のものを使用することができる。例
えば、■フルキルトリアルコキシシランの部分加水分解
物
■メチルトリアルコキシシランとフェニルトリアルコキ
シシランの部分加水分解物
■アルキルトリアルコえジシランとテトラアルコキシシ
ランの部分加水分解物
■アルキルトリアルコキシシランの部分加水分解物また
はアルキルトリヒドロキシシランとコロイダルシリカ
■アルキルトリアルコキシシランとテトラアルコキシシ
ランとシランカップリング剤の部分加水分解物
などを挙げることができる。塗布される熱硬化性樹脂成
形品の用途に応じて硬化剤、硬化促進剤、平滑剤、増粘
剤、安定化剤などの添加剤や、体質顔料その他の着色剤
を添加することもできる。
この無機質被覆組成物を塗布するに際して、本発明では
予め熱硬化性樹脂成形品の表面を粗面化処理しておく、
＠面化処理するにあたっては、熱硬化性樹脂成形品の表
面をアルカリ溶液や酸溶液でおかす化学的処理や、熱硬
化性樹脂成形品の表面をサンドスプレーしたりサンドペ
ーパーでこすったりする物理的研摩処理などによってお
こなうことができる。粗面化の度合は、凹凸の凹の深さ
が５〜５０μ−になるように設定するのが好ましく、よ
り好ましくは５〜３０μ自程度である。
本発明において熱硬化性樹脂成形品としては何等限定さ
れるものではないが、例えばメラミン成形品や不飽和ポ
リエステル成形品、７工７−ル成形品などを用いること
がでさるものである。そして熱硬化性樹脂成形品の表面
を粗面化処理したのち、この粗面において熱硬化性樹脂
成形品の表面に無機質被覆組成物を塗布するものである
。塗布するにあたってはへｆ塗り、スプレー、ディッピ
ング、流し塗りなど任意の塗装方法によっておこなうこ
とができる。無機質被覆組成物の硬化条件は特に限定さ
れるものではないが、室温〜１２０℃程度で脱溶剤を主
目的として５〜３０分間のセ・ンティングをおこなった
のちに、１２０〜２００℃の温度で１０〜６０分間加熱
するようにするのが一般的である。この硬化温度はベー
スとなる熱硬化性樹脂成形品の耐熱性や形状、形成する
皮膜厚などを考慮して設定されるものである。また無機
質被覆組成物の皮膜厚は特に限定されるものではないが
、透明皮膜の場合は、２〜２０μ鵠程度が好ましく、特
に５〜１０μ鵠の範囲が望ましい。
皮膜厚が２μ論より薄いと皮膜の耐久性が不十分であり
、逆に皮膜厚が２０μ鴎より厚−１と無機質被覆組成物
の硬化の過程や使用時の熱衝撃によって皮膜にクラック
を生じるおそれがある。また着色不透明皮膜の場合は、
皮膜厚は５〜５０μ（至）程度が好ましく、特に１５〜
３０μ麺が望まし一％。
皮膜厚が５μ閣より薄いと着色の内容にもよるが隠蔽性
が不十分になることが多く、逆に皮膜厚が５０μ■より
厚いとクラックや剥離現象が起こり易くなるおそれがあ
る。
上記のようにして、熱硬化性樹脂成形品の粗面化した表
面に無機質被覆組成物の皮膜を形成することによって、
粗面によるアンカー効果や表面積の増加効果などによっ
て無機質被覆組成物の皮膜は熱硬化性Ｉｆ脂成形品に密
着し、熱硬化性樹脂成形品の表面特性を無機質被覆組成
物によって実用的に改善することができるものである。
特にメラミン成形品の場合には耐汚染性や沸騰水耐久性
、酎アーク性、溶出ホルムアルデヒドの皆無化を、不飽
和ポリエステル成形品の場合は耐薬品性、耐汚染性、表
面硬度、耐アーク性を、フェノール樹脂成形品の場合は
酎アーク性をそれぞれ高める効果が大きい。The surface treatment method for a thermosetting resin molded article according to the present invention includes roughening the surface of the thermosetting resin molded article, and coating the surface of the thermosetting resin molded article on the roughened surface with a Sa-based coating composition. It is characterized by being applied and hardened. The present invention will be explained in detail below. The inorganic coating composition used in the present invention can be one that has thermosetting properties and is dispersed in the form of a sol in an organic solvent.
Conventionally known materials disclosed in Japanese Patent Laid-open No. 67, Japanese Patent Application Laid-Open No. 76034/1980, and the like can be used. For example, ■ Partial hydrolyzate of furkyltrialkoxysilane ■ Partial hydrolyzate of methyltrialkoxysilane and phenyltrialkoxysilane ■ Partial hydrolyzate of alkyltrialkoxysilane and tetraalkoxysilane ■ Portion of alkyltrialkoxysilane Examples include hydrolysates or partial hydrolysates of alkyltrihydroxysilanes, colloidal silica, alkyltrialkoxysilanes, tetraalkoxysilanes, and silane coupling agents. Additives such as curing agents, curing accelerators, smoothing agents, thickeners, and stabilizers, extender pigments, and other coloring agents may also be added depending on the use of the thermosetting resin molded article to be coated. When applying this inorganic coating composition, in the present invention, the surface of the thermosetting resin molded product is roughened in advance.
＠Surfacing treatment involves a chemical treatment in which the surface of the thermosetting resin molded product is treated with an alkaline or acid solution, or a physical treatment such as sand spraying or rubbing the surface of the thermosetting resin molded product with sandpaper. This can be done by polishing or the like. The degree of surface roughening is preferably set so that the depth of the depressions and depressions is 5 to 50 μm, more preferably about 5 to 30 μm. In the present invention, the thermosetting resin molded product is not limited in any way, but it is possible to use, for example, a melamine molded product, an unsaturated polyester molded product, a 7-layer molded product, and the like. After the surface of the thermosetting resin molded article is roughened, an inorganic coating composition is applied to the roughened surface of the thermosetting resin molded article. The coating can be done by any coating method such as spraying, dipping, or flow coating. The curing conditions for the inorganic coating composition are not particularly limited, but after setting at room temperature to about 120°C for 5 to 30 minutes with the main purpose of removing solvent, curing conditions at a temperature of 120 to 200°C. It is common to heat for 10 to 60 minutes. This curing temperature is set in consideration of the heat resistance and shape of the base thermosetting resin molded product, the thickness of the film to be formed, etc. Further, the film thickness of the inorganic coating composition is not particularly limited, but in the case of a transparent film, it is preferably about 2 to 20 microns, particularly preferably 5 to 10 microns. If the coating thickness is thinner than 2μ, the durability of the coating will be insufficient, and conversely, if the coating thickness is less than 20μ, cracks will occur in the coating due to the curing process of the inorganic coating composition or thermal shock during use. There is a risk. In addition, in the case of a colored opaque film,
The film thickness is preferably about 5 to 50 μm, particularly 15 to 50 μm.
30μ noodles are preferable and 1%. If the film thickness is less than 5 μm, the hiding power is often insufficient, although it depends on the content of the coloring. Conversely, if the film thickness is more than 50 μm, cracking and peeling phenomena may easily occur. By forming a film of the inorganic coating composition on the roughened surface of the thermosetting resin molded article as described above,
The film of the inorganic coating composition adheres closely to the thermosetting If resin molded product due to the anchor effect and surface area increase effect due to the rough surface, and the surface characteristics of the thermosetting resin molded product are practically improved by the inorganic coating composition. It is something that can be done. In particular, melamine molded products have stain resistance, boiling water durability, arc resistance, and no eluted formaldehyde, while unsaturated polyester molded products have chemical resistance, stain resistance, surface hardness, and arc resistance. In the case of phenolic resin molded products, the effect of increasing the arc property is large.
以下本発明を実施例によって詳述する。
Ｋ（乱と
還流冷却器付きの加水分解容器にインプロピルアルコー
ル６８重量部、テトラエトキシ２２フ３８重量部、メチ
ルトリエトキシシラン７２重量部、０．０５規定塩酸水
溶液３６重量部を仕込み、攪拌しながら５時間加熱還流
して加熱分解をおこなった。反応後、室温まで冷却して
部分加水分解物溶液を得た（前記アルキルトリアルコキ
シシランとテトラアルコキシシランの部分加水分解物・
・・無機質被覆組成物Ａとする）。
一方、熱硬化性樹脂成形品として、ａ−セルロースを基
材とするメラミン樹脂成形材料（松下電工株式会社製Ｎ
Ｎシリーズ）を成形して得た直径２３５ ＬＩｌｍ、厚
み２−３ｍｍのカレーライス皿を用い、この熱硬化性樹
脂成形品の表面を溶剤含浸布で拭いて清浄化し、ごみや
汚れを除去した。そしてこの熱硬化性樹脂成形品の表面
を＃１００のサンドペーパーでこすって研摩することに
よって、５〜３０μｍの範囲の深さの凹凸を形成した。
次にこのように粗面化した熱硬化性樹脂成形品の表面に
、無機質被覆組成物Ａを硬化後の皮膜厚が５〜１０μ船
になるようにスプレーガンで塗布し、直ちに１２０℃に
設定された熱風式乾燥機で１０分間処理した後に乾燥機
の温度を１６０℃まで昇温させ、１６０℃で３０分間保
持して無機質被覆組成物Ａを硬化させた。こののちに熱
硬化性樹脂成形品を取り出して室温まで放冷した。
このようにして得た、無機質被覆組成物Ａの硬化皮膜で
被覆した熱硬化性Ｑ４脂成形品について、表面外観（光
沢）、表面硬度、無機質被覆組成物Ａの硬化皮膜の密着
性、ホルムアルデヒド溶出量、耐煮沸性、耐汚染性、耐
アーク性をそれぞれ測定した。また比較のために、表面
に無機質被覆組成物による処理をおこなわないもの（従
来例１）についても同様に測定した。尚、表面硬度はＪ
ＩＳＫ ５４００に基づいて、硬化皮膜の密着性はゴ
バン目試験（試験片にｉｎ＋＋ａ四方の切れ目をゴバン
目状に１００個作成し、セロハンテープで引きはがした
際に剥離せず残っているまず目を計測する。
分母にゴバン目のます目の数、分子に剥離せず残ってい
るよす目の数を表示）で、ホルムアルデヒド溶出量は実
施例１をＡＨＴＭ法（検出限界０．０５ｐｐｍ）で従来
例１をアセチルアセトン法（検出限界０ 、２ ｐｐｍ
）で、耐煮沸性は沸騰水中に１００時間煮沸することに
よって、耐汚染性は３重量％濃度のインスタントコーヒ
ー中で１０時間煮沸することによって、耐アーク性はＪ
ＩＳ Ｋ ６９１１に基づいてそれぞれ測定した。
結果を第１表に示した。
犬１１」工
約１０〜３０ＩＩｌμの粒径をもつＳｉＯ□を約２０重
量％含有する酸性の水性コロイダルシリカ分散液２００
重量部に木酢＠０．２重量部を添加し、次いで攪拌しな
がらメチルメトキシシラン９０重量部とエチルメトキシ
シラン５０重量部の混合物を添加し、攪拌しながら約２
時間５℃に保ち、次ぎに酢酸ナトリウム水溶液でｐＨを
４にｍ整した。
これにイソプロピルアルコール５６０重量部を添加する
ことによって約２０重量％のシラン化合物を含有する加
水分解物溶液を得た（前記アルキルトリアルコキシシラ
ンの部分加水分解物またはフルキルトリヒドロキシシラ
ンとコロイダルシリカ・・・無機質被覆組成物Ｂ）。
一方、熱硬化性樹脂成形品として、木粉等の有機質フィ
ラーと炭酸カルシウムなどの無機質フィラーを含有する
一般用７工７−ル樹脂成形材料（松下電工株式会社１Ｉ
ＣＹ−３３１０）を１２０＋ａｍＸ８０ ＩＩｌｍＸ
３ ！Ｉ１１に成形したものを用い、溶剤脱脂したのち
にこの熱硬化性樹脂成形品の表面に実施例１と同様にし
て粗面化処理をした。次ぎに無機質被覆組成物Ｂを実施
例１と同じ条件で塗布し、さらに同じ条件で硬化させる
ことによって、無機質被覆組成物Ｂの硬化皮膜で熱硬化
性樹脂成形品を被覆した。このものについて、表面外観
（光沢）、表面硬度、無機質被覆組成物Ｂの硬化皮膜の
密着性、耐アーク性をそれぞれ測定した。また比較のた
めに、表面無機質被覆組成物による処理をおこなわない
もの（従来例２）についても同様に測定した。
結果を第２表に示した。
犬１１」−
熱硬化性樹脂成形品として、炭酸カルシウムやガラス繊
維、水酸化アルミニウム等をフィラーとして含有する不
飽和ポリエステル樹脂成形材料（松下電工株式会社製Ｃ
Ｅシリーズ）を１２０＋ｎ＋ｎＸ８０ＩＩＩＩＸ３Ｉ＠
ＩＩｌに成形したものを用い、溶剤脱脂したのちにこの
熱硬化性樹脂成形品の表面に実施例１と同様にして粗面
化処理をした０次ぎに無機質被覆組成物Ｂを実施例１と
同じ条件で塗布し、さらに同じ条件で硬化させることに
よって、無機質被覆組成物Ｂの硬化皮膜で熱硬化性樹脂
成形品を被覆した。このものについて、表面外観（光沢
）、表面硬度、無機質被覆組成物Ｂの硬化皮膜の密着性
、耐アーク性をそれぞれ測定した。また比較のために、
表面に無機質被覆組成物による処理をおこなわないもの
（従来例３）についても同様に測定した。
結果を第２表に示した。
犬１１阿」−
熱硬化性樹脂成形品として、メラミン樹脂成形材料（松
下電工株式会社製ＭＭシリーズ）を１２０１１１ｍ×８
０１１１−×３ｍｍに成形したものを用い、溶剤脱脂し
たのちにこの熱硬化性樹脂成形品の表面に実施例１と同
様にして粗面化処理をした６次にこの粗面化処理した熱
硬化性樹脂成形品の表面に、無機質被覆組成物Ａを硬化
後の皮膜厚が５〜１０μ鶴になるようにスプレーがンで
塗布し、塗布後約５分間室温に放置した０次いで１２０
℃の熱風乾燥機で約５分間セツティング処理をし、次ぎ
に１８０℃に設定された別の熱風乾燥機に移して１５分
間保持して無機質被覆組成物Ｂを硬化させた。
こののちに熱硬化性樹脂成形品を取り出して室温まで放
冷した。
このものにおいて無機質被覆組成物Ｂの硬化皮膜にはク
ラックの発生はなく良好な外観であった。
またこのものについて、表面外観（光沢）、表面硬度、
無機質被覆組成物Ｂの硬化皮膜の密着性、ホルムアルデ
ヒド溶出量、耐煮沸性、耐汚染性、酎７−り性をそれぞ
れ測定した。結果を第１表に示第１表
第２表
比較例１〜４
粗面化処理をしない他は実施例１〜４と同様にして、熱
硬化性樹脂成形品の表面に無機質被覆組成物を塗布して
硬化させ、熱硬化性樹脂成形品の表面を無機質被覆組成
物の皮膜で被覆した。これらのものでは、外観はそれぞ
れ実施例１〜４に対応して同様に良好であるが、ゴバン
目試験で無機質被覆組成物の硬化皮膜の密着性を検査し
たところ、１００のゴバン目のます目の総てが剥離し、
実用に酎えないものであった。The present invention will be explained in detail below with reference to Examples. K (68 parts by weight of inpropyl alcohol, 38 parts by weight of 22% tetraethoxysilane, 72 parts by weight of methyltriethoxysilane, and 36 parts by weight of 0.05N hydrochloric acid aqueous solution were charged into a hydrolysis vessel equipped with a turbulence and reflux condenser, and stirred. The mixture was heated under reflux for 5 hours to carry out thermal decomposition. After the reaction, it was cooled to room temperature to obtain a partial hydrolyzate solution (partial hydrolyzate of alkyltrialkoxysilane and tetraalkoxysilane).
... Inorganic coating composition A). On the other hand, as a thermosetting resin molded product, a melamine resin molding material based on a-cellulose (N
Using a curry and rice plate with a diameter of 235 LIlm and a thickness of 2-3 mm obtained by molding a molded product (N series), the surface of this thermosetting resin molded product was cleaned by wiping with a solvent-impregnated cloth to remove dust and dirt. The surface of this thermosetting resin molded article was rubbed and polished with #100 sandpaper to form irregularities with a depth in the range of 5 to 30 μm. Next, on the surface of the thermosetting resin molded product thus roughened, inorganic coating composition A was applied with a spray gun so that the film thickness after curing was 5 to 10 μm, and the temperature was immediately set to 120°C. After processing in a heated hot air dryer for 10 minutes, the temperature of the dryer was raised to 160°C and held at 160°C for 30 minutes to cure the inorganic coating composition A. Thereafter, the thermosetting resin molded product was taken out and allowed to cool to room temperature. Regarding the thus obtained thermosetting Q4 resin molded article coated with the cured film of inorganic coating composition A, surface appearance (gloss), surface hardness, adhesion of the cured film of inorganic coating composition A, formaldehyde elution The water content, boiling resistance, stain resistance, and arc resistance were measured. For comparison, measurements were also made in the same manner on a sample whose surface was not treated with an inorganic coating composition (Conventional Example 1). In addition, the surface hardness is J
Based on ISK 5400, the adhesion of the cured film is determined by the cross-cut test (100 in++a square cuts are made on the test piece in a cross-cut pattern, and when the test piece is peeled off with cellophane tape, the first cut that remains without peeling is The number of squares in the denominator is the number of squares remaining without being peeled off. Conventional Example 1 was performed using the acetylacetone method (detection limit: 0, 2 ppm).
), boiling resistance is determined by boiling in boiling water for 100 hours, stain resistance is determined by boiling in 3% by weight instant coffee for 10 hours, arc resistance is determined by boiling in boiling water for 100 hours, and arc resistance is determined by boiling in boiling water for 10 hours.
Each was measured based on IS K 6911. The results are shown in Table 1. Acidic aqueous colloidal silica dispersion 200 containing about 20% by weight of SiO□ having a particle size of about 10 to 30 II lμ
Add 0.2 parts by weight of wood vinegar to the parts by weight, then add a mixture of 90 parts by weight of methylmethoxysilane and 50 parts by weight of ethylmethoxysilane with stirring, and add about 2 parts by weight while stirring.
The temperature was maintained at 5° C. for a period of time, and then the pH was adjusted to 4 with an aqueous sodium acetate solution. By adding 560 parts by weight of isopropyl alcohol to this, a hydrolyzate solution containing about 20% by weight of a silane compound was obtained (partial hydrolyzate of the alkyltrialkoxysilane or furkyltrihydroxysilane and colloidal silica). ...Inorganic coating composition B). On the other hand, as a thermosetting resin molded product, a general-use 7-7 resin molding material (Matsushita Electric Works Co., Ltd. 1I) containing organic fillers such as wood flour and inorganic fillers such as calcium carbonate is used.
CY-3310) to 120+amX80 IIlmX
3! After solvent degreasing, the surface of this thermosetting resin molded product was roughened in the same manner as in Example 1. Next, inorganic coating composition B was applied under the same conditions as in Example 1, and further cured under the same conditions to coat the thermosetting resin molded article with a cured film of inorganic coating composition B. Regarding this product, the surface appearance (gloss), surface hardness, adhesion of the cured film of inorganic coating composition B, and arc resistance were measured. For comparison, measurements were also made in the same manner for a sample (Conventional Example 2) that was not treated with the surface inorganic coating composition. The results are shown in Table 2. "Dog 11" - As a thermosetting resin molded product, an unsaturated polyester resin molding material containing fillers such as calcium carbonate, glass fiber, and aluminum hydroxide (C manufactured by Matsushita Electric Works Co., Ltd.)
E series) 120+n+nX80IIIX3I@
After solvent degreasing, the surface of this thermosetting resin molded product was roughened in the same manner as in Example 1. Next, inorganic coating composition B was applied in the same manner as in Example 1. The thermosetting resin molded article was coated with a cured film of inorganic coating composition B by coating under the same conditions and curing under the same conditions. Regarding this product, the surface appearance (gloss), surface hardness, adhesion of the cured film of inorganic coating composition B, and arc resistance were measured. Also, for comparison,
Similar measurements were made for a sample whose surface was not treated with an inorganic coating composition (Conventional Example 3). The results are shown in Table 2. ``Dog 11a'' - 120111m x 8 pieces of melamine resin molding material (MM series manufactured by Matsushita Electric Works Co., Ltd.) were used as thermosetting resin molded products.
After solvent degreasing, the surface of this thermosetting resin molded product was roughened in the same manner as in Example 1. The inorganic coating composition A was applied to the surface of the plastic molded product using a spray gun so that the film thickness after curing was 5 to 10 μm, and after application it was left at room temperature for about 5 minutes.
It was set in a hot air dryer at 180°C for about 5 minutes, and then transferred to another hot air dryer set at 180°C and kept there for 15 minutes to cure the inorganic coating composition B. Thereafter, the thermosetting resin molded product was taken out and allowed to cool to room temperature. In this case, the cured film of inorganic coating composition B had no cracks and had a good appearance. Regarding this product, surface appearance (gloss), surface hardness,
The adhesion, formaldehyde elution amount, boiling resistance, staining resistance, and oxidation resistance of the cured film of the inorganic coating composition B were measured. The results are shown in Table 1 Table 1 Table 2 Comparative Examples 1 to 4 An inorganic coating composition was applied to the surface of a thermosetting resin molded product in the same manner as in Examples 1 to 4 except that the surface roughening treatment was not performed. It was applied and cured, and the surface of the thermosetting resin molded article was coated with a film of the inorganic coating composition. In these cases, the appearance was similarly good corresponding to Examples 1 to 4, respectively, but when the adhesion of the cured film of the inorganic coating composition was examined by a cross-cut test, it was found that 100 cross-holes were observed. All of the peeled off,
It was impractical.
上述のように本発明にあっては、熱硬化性樹脂成形品の
表面を粗面化処理し、ネ■面において熱硬化性樹脂成形
品の表面に無機質被覆組成物を塗布して硬化させるよう
にしたので、無機質被覆組成物の皮膜は粗面のアンカー
効果等によって熱硬化性樹脂成形品に密着し、熱硬化性
樹脂成形品の表面特性を無機質被覆組成物によって実用
的に高めることができるものである。As described above, in the present invention, the surface of the thermosetting resin molded product is roughened, and an inorganic coating composition is applied to the surface of the thermosetting resin molded product on the negative side and cured. As a result, the film of the inorganic coating composition adheres to the thermosetting resin molded product due to the anchor effect of the rough surface, etc., and the surface characteristics of the thermosetting resin molding can be practically improved by the inorganic coating composition. It is something.
Claims (1)
において熱硬化性樹脂成形品の表面に無機質被覆組成物
を塗布して硬化させることを特徴とする熱硬化性樹脂成
形品の表面処理方法。(1) Thermosetting resin molding characterized in that the surface of the thermosetting resin molded product is roughened, and an inorganic coating composition is applied to the rough surface of the thermosetting resin molded product and cured. Product surface treatment method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63148837A JPH01315431A (en) | 1988-06-15 | 1988-06-15 | Surface-treatment of thermosetting resin molded article |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63148837A JPH01315431A (en) | 1988-06-15 | 1988-06-15 | Surface-treatment of thermosetting resin molded article |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01315431A true JPH01315431A (en) | 1989-12-20 |
Family
ID=15461842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63148837A Pending JPH01315431A (en) | 1988-06-15 | 1988-06-15 | Surface-treatment of thermosetting resin molded article |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01315431A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04249146A (en) * | 1991-02-05 | 1992-09-04 | Matsushita Electric Ind Co Ltd | Water-repellent oil-repellent stainproof film and manufacture thereof |
| JPH04288349A (en) * | 1991-01-23 | 1992-10-13 | Matsushita Electric Ind Co Ltd | Water- and oil-repellent coating and its manufacturing method |
| JPH04359031A (en) * | 1991-06-04 | 1992-12-11 | Matsushita Electric Ind Co Ltd | Water- and oil-repellent film and its manufacturing method |
| JPH0752598A (en) * | 1993-08-10 | 1995-02-28 | Achilles Corp | Manufacture of decorate panel taking polycarbonate as basic material and decorative panel |
| JPH10310455A (en) * | 1991-01-23 | 1998-11-24 | Matsushita Electric Ind Co Ltd | Article made of glass substrate having water- and oil-repellent coating and method for producing the same |
| JP2004002187A (en) * | 1991-01-23 | 2004-01-08 | Matsushita Electric Ind Co Ltd | Water and oil repellent coating |
-
1988
- 1988-06-15 JP JP63148837A patent/JPH01315431A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04288349A (en) * | 1991-01-23 | 1992-10-13 | Matsushita Electric Ind Co Ltd | Water- and oil-repellent coating and its manufacturing method |
| JPH10310455A (en) * | 1991-01-23 | 1998-11-24 | Matsushita Electric Ind Co Ltd | Article made of glass substrate having water- and oil-repellent coating and method for producing the same |
| JP2004002187A (en) * | 1991-01-23 | 2004-01-08 | Matsushita Electric Ind Co Ltd | Water and oil repellent coating |
| JPH04249146A (en) * | 1991-02-05 | 1992-09-04 | Matsushita Electric Ind Co Ltd | Water-repellent oil-repellent stainproof film and manufacture thereof |
| JPH04359031A (en) * | 1991-06-04 | 1992-12-11 | Matsushita Electric Ind Co Ltd | Water- and oil-repellent film and its manufacturing method |
| JPH0752598A (en) * | 1993-08-10 | 1995-02-28 | Achilles Corp | Manufacture of decorate panel taking polycarbonate as basic material and decorative panel |
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