201137064 六、發明說明: 【發明所屬之技術領域】 本發明涉及一種塗料,特別是涉及一種防護塗料、其製備 方法及使用方法。 【先前技術】 按,一般消費性電子產品除了基本的電氣功能及性能的需 求以外,也要求其外表(例如手機外殼,MP4及手機觸控面版 等)具有一定的抗刮耐磨的能力,以提升產品的附加價值及增 加使用壽命。用來製備手機外殼,MP4及手機觸控面版的工程 塑膠原料’常見的有聚碳酸醋(Polycarbonates,簡稱PC),聚曱 基丙烯酸曱酿(Polymethylmethacrylate,簡稱PMMA),丙稀腈-笨乙稀-丁二烯共聚物(Acrylonitrile Butadiene Styrene,簡稱 ABS)等,以上工程塑膠並不具備任何抗刮财磨能力,在正常使 用情況下’所製備的消費性電子產品,往往在電氣功能失效以 前產品外觀即產生嚴重刮痕,影響產品外觀及降低其價值感。 為提而塑膠產品的抗到耐磨的能力,當前的一種方法是在其工 私塑膠原料中直接添加一定比例的無機粒子,混合均勻後形成 有機無機複合材料,藉由高硬度的無機粒子提升整體材料的 抗到耐磨特性。 准,上述方法在不影響工程塑膠原料使用特性前提下,所 旎添加的無機材料比例有一定上限,因此工程塑膠抗刮耐磨效 能提升的空間有限。 【發明内容】 本發明之目的係針對上述習知技術之不足提供一種防護 塗料、其製備方法及使用方法該防護塗料可於塑膠產品的表 面形成一硬度尚,抗到耐磨能力好的透明保護層。 201137064 =明之防護塗料的製備方法包括如下步驟: )將四乙基原硅酸鹽和壓方 混合並於室溫下授摔㈣二:㈣^ ⑺將步驟(υ製備得機混合物; . 的無機也合物與去離子水及有 明的、容液A ur· ± 48〜72小時後得到-澄清透 圭烧與去離子水的摩爾比為m 克力硅烷與有機溶劑的摩爾比為丨:5 ; 膠·凝膠法製備奈米二氧切凝膠即粒徑為 8 1〇奈米左右的二氧化矽凝膠; 八將由㈣⑺得到的溶液A與奈米二氧切凝滕混 二==氧化?——,於室溫下 料-’從而仔到無色透明的本發明之防護塗 精二切凝膠的體積和溶液八與二氧切凝膠的總體 積比為5〜10 · 1 〇〇 ’過氧化笑的暂旦 Ρ ΛΛ 溶液Α與缝Β及過氧 化本的總枭置的比為〇.!〜〇 3:1〇〇 〇 一種防護塗料’即由上述製備方法製備而成。 上述防護塗料的使用方法,包括以下步驟: (1)將上述防護塗料塗佈於塑膠產品表面; ⑺將上述塗佈有防護塗料的塑膠產品置於8〇〜⑽。c的 環境下加熱0.5〜Μ、時’從而塗佈於塑膠產品表面的防護塗料 固化成一透明保護膜。 /上所述,本發明防護塗料可於塑勝產品的表面形成一硬 度尚’抗刮财磨能力好的透明保護層。 【實施方式】 本發明之技術内容、構造特徵及其所達成之目的與功效, 以下詳予說明。 > 201137064 本發明之防護塗料的製備方法包括如下步驟: ,、 字乙基原石圭酸鹽和屢克力娃院以摩爾比〇.5〜1 ·· ’扣口並於至溫下搜拌0 H 5小時得到一無機混合物; (2)將步驟⑴製備得到的無機混合物與去離子水及有 機溶,混合,並於室溫下持續_射2小時後得到—澄清透 月的冷液A,其中麼克力石圭燒與去離子水的摩爾比為u,壓 克力娃炫與有機溶劑的摩_為1:5,有機溶劑為99谈的 乙醇或異丙醇; (3)用命膠-凝膠法製備奈米二氧化矽凝膠,即粒徑為 8〜10奈米左右的二氧化石夕凝膠,· _ (4)將由步驟(2)得到的溶液A與奈米二氧切凝膠混 & _並力σ人疋畺的過氧化苯(⑹y卩打⑽咖),於室溫下 均勻攪拌1小時,從而得到無色透明的防護塗料。盆中二氧化 石夕凝膠的體積和溶液A與二氧切凝膠的總體積比為5善· _ ’過氧化苯的質量和溶液A與溶液B及過氧化苯的總質量 的比為 0.1-0.3 : 100。 一種防護塗料,即由上述製備方法製備而成。 上述防護塗料的使用方法,包括以下步驟: (1) 將上述防護塗料塗佈於塑膠產品表面; (2) 將上述塗佈有防護塗料的塑膠產品置於8〇〜1⑻。[的 環境下加熱0·5〜8小時’從而塗佈於塑膠產品表面的防護塗料 固化成一透明保護膜。 以下例舉塑膠材料製成的產品,以進一步說明上述防護塗 料的效果。 分別取四乙基原硅酸鹽和壓克力硅烷,以摩爾比i : i混 合後於室溫下㈣0.5小時,得到—無機混合物;再分別加入 去離子水及99.5%的乙醇,於室溫大氣下持續㈣48小時後 201137064 1到一;豆清透明溶液,此為溶液A,其帽克力魏▲去 水的摩爾比為1:5,麼克力石圭燒與有機溶劑的摩爾比為i. 5. 然後再加入二氧化石夕凝膠及過氧化苯,於室溫下均勾授掉, ^即可得到本發明防護塗料,其中二氧切凝膠的體積和溶 ^與一軋化矽凝膠的總體積比為5〜10·· 1〇〇,過氧化苯的 量和溶液a與溶液b及過氧化苯的總質量的比為m〇〇。 利用-塗膜器將此防護塗料塗佈於塑膠產品表面,再將塗 佈有上述防護塗料的塑膠產品置於1〇〇t下加熱〇 5小時固化 成膜,從而塗佈於塑膠產品表面的防護塗料形成—厚度約2〇 微米的透明保護層。將此樣品以ASTM D3363進行抗刮測键, 硬度達3H。且試驗表明防護塗料形成的透明保護層的抗到耐 磨的能力與塗層厚度成正比,塗佈越厚的保護廣,擁有越好的 抗刮耐磨能力。 由上述測試結果可知,塗佈有本發明防護塗料的塑膠產品 表面硬度尚’抗刮耐磨能力好。 此方法可廣泛用於各種消費性電子產品,例如鍵盤、滑 鼠、各種訊號傳輸線,連接器,螢幕、光碟機、桌上型電腦主 機、筆記型電腦、手機、耳機、PDA、電話機、天線、電視1、 DVD、音響、喇叭、MP3、MP4、攝影機、錄音筆等。 综上所述,本發明防護塗料的製備方法簡單,且生產環境 及條件於室溫及常壓大氣下反應即可,不需昂貴及特殊的反應 設備’容易大量生產及降低塗料生產成本。藉此,本發明之 護塗料、其製備方法及塗佈方法」由上述揭露之方法,可以達 到所述之功效,且本發明之申請合乎專利之要件,故依法提出 申請。201137064 VI. Description of the Invention: [Technical Field] The present invention relates to a coating, and more particularly to a protective coating, a preparation method thereof and a method of use. [Prior Art] In addition to the basic electrical functions and performance requirements, general consumer electronic products also require their appearance (such as mobile phone case, MP4 and mobile phone touch panel, etc.) to have certain scratch and wear resistance. To enhance the added value of the product and increase the service life. Used to make mobile phone casings, MP4 and mobile touch panels of engineering plastic materials 'commonly polycarbonate (Polycarbonates, PC for short), polymethylmethacrylate (PMMA), acrylonitrile-stupid B Acrylonitrile Butadiene Styrene (ABS), etc., the above engineering plastics do not have any anti-scratch and grinding ability. Under normal use, the prepared consumer electronic products often fail before the electrical function fails. The appearance of the product is severely scratched, affecting the appearance of the product and reducing its sense of value. In order to improve the anti-wear resistance of plastic products, one of the current methods is to directly add a certain proportion of inorganic particles in the plastic raw materials of the industrial and private materials, and uniformly form an organic-inorganic composite material, which is promoted by high-hardness inorganic particles. The overall material is resistant to wear. Precisely, the above method has a certain upper limit on the proportion of inorganic materials added without affecting the use characteristics of engineering plastic raw materials. Therefore, the space for improving the scratch resistance and wear resistance of engineering plastics is limited. SUMMARY OF THE INVENTION The object of the present invention is to provide a protective coating, a preparation method thereof and a use method thereof for the deficiencies of the above-mentioned prior art. The protective coating can form a transparent protection against the wear resistance of the plastic product. Floor. 201137064=The preparation method of the protective coating includes the following steps:) Mixing the tetraethyl orthosilicate with the pressed square and imparting it at room temperature (4) 2: (4) ^ (7) The step of preparing the organic mixture; The molar ratio of the compound to the deionized water and the clear, liquid A ur·± 48~72 hours-clearing the chlorination and deionized water is the molar ratio of the silane to the organic solvent is 丨:5 The gel-gel method is used to prepare a nano-dioxy-cut gel, that is, a cerium oxide gel having a particle diameter of about 8 〇 nanometer; and a solution A obtained by (4) (7) is mixed with nano-dioxo prior to condensing two == Oxidation - -, at room temperature - 'There is a colorless and transparent, the volume of the protective smear dicerate gel of the present invention and the total volume ratio of the solution octadioxime to the gel is 5 to 10 · 1 〇 〇 'Permanent 笑 笑 暂 暂 ΛΛ Α Α Α Α Α Β Β Β Β ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! The method for using the above protective coating comprises the following steps: (1) applying the above protective coating to the surface of the plastic product; The above-mentioned plastic product coated with the protective coating is heated to a transparent protective film by heating the protective coating applied to the surface of the plastic product by heating 0.5 to Μ in an environment of 8 〇 to 10 (c). The invention discloses that the protective coating can form a transparent protective layer with good hardness and good scratch resistance on the surface of the plastic product. [Embodiment] The technical content, structural features and the achieved purpose and effect of the invention are as follows. Description: > 201137064 The preparation method of the protective coating of the present invention comprises the following steps: , ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Mixing 0 H for 5 hours to obtain an inorganic mixture; (2) mixing the inorganic mixture prepared in the step (1) with deionized water and organically, mixing, and continuing at room temperature for 2 hours to obtain a clear cold Liquid A, wherein the molar ratio of the sylvestre to the deionized water is u, the molar ratio of the acrylic acid to the organic solvent is 1:5, and the organic solvent is the ethanol or isopropanol of 99; (3) Preparation of nanometer cerium oxide gel by gel-gel method , that is, a silica gel having a particle diameter of about 8 to 10 nm, _ (4) mixing the solution A obtained in the step (2) with the nano-dioxy-cut gel & _ _ force 疋 human 疋Bismuth peroxide benzene ((6) y 卩 (10) coffee), uniformly stirred at room temperature for 1 hour, to obtain a colorless transparent protective coating. The volume of the dioxide in the pot and the solution A and dioxogel The total volume ratio is 5 _ _ 'the mass of benzo peroxide and the ratio of solution A to the total mass of solution B and benzene peroxide is 0.1-0.3: 100. A protective coating, which is prepared by the above preparation method. The method for using the protective coating comprises the following steps: (1) applying the above protective coating to the surface of the plastic product; (2) placing the above-mentioned plastic product coated with the protective coating at 8〇~1(8). [The environment is heated for 0.5 to 8 hours] so that the protective coating applied to the surface of the plastic product is cured into a transparent protective film. The following products are exemplified by plastic materials to further illustrate the effects of the above protective coatings. The tetraethyl orthosilicate and the acrylic silane were respectively taken and mixed at a molar ratio of i: i at room temperature for (4) for 0.5 hours to obtain an inorganic mixture; then deionized water and 99.5% ethanol were separately added. At room temperature, the atmosphere is continued (4) 48 hours after 201137064 1 to 1; the clear solution of the bean clear, this is the solution A, the molar ratio of the cape wei ▲ dewatering is 1:5, the molar ratio of the gram gram stone to the organic solvent I. 5. Then add the dioxide dioxide gel and benzo peroxide, and then give it away at room temperature, then you can get the protective coating of the invention, wherein the volume and dissolution of the dioxo-cut gel The total volume ratio of the rolled ruthenium gel is 5 to 10··1 〇〇, and the ratio of the amount of benzene peroxide and the total mass of the solution a to the solution b and benzene peroxide is m〇〇. The protective coating is applied to the surface of the plastic product by using a film applicator, and the plastic product coated with the above protective coating is cured by heating at 〇〇t for 5 hours to form a film, thereby being applied to the surface of the plastic product. The protective coating forms a transparent protective layer having a thickness of about 2 microns. The sample was subjected to an anti-scratch test with ASTM D3363 and a hardness of 3H. Moreover, tests have shown that the anti-wear resistance of the transparent protective layer formed by the protective coating is proportional to the thickness of the coating, and the thicker the coating, the better the scratch resistance. It can be seen from the above test results that the surface hardness of the plastic product coated with the protective coating of the present invention is good as a scratch resistance. This method can be widely used in various consumer electronic products, such as keyboards, mice, various signal transmission lines, connectors, screens, CD players, desktop mainframes, notebook computers, mobile phones, earphones, PDAs, telephones, antennas, TV 1, DVD, stereo, speakers, MP3, MP4, camera, voice recorder, etc. In summary, the preparation method of the protective coating of the present invention is simple, and the production environment and conditions can be reacted at room temperature and atmospheric pressure, without expensive and special reaction equipment, which is easy to mass produce and reduce the production cost of the coating. Accordingly, the protective coating of the present invention, the method for preparing the same, and the method for coating the same can achieve the above-mentioned effects by the method disclosed above, and the application of the present invention meets the requirements of the patent, so the application is made according to law.