201206300 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及一種殼體及其製作方法，尤其涉及一種具有 防水及自清潔功能的殼體及該殼體的製作方法。 【先前技術】 [0002] 近年來，消費者對於3C產品的要求越來越高。除具有更 多、更強的功能外，還對產品的外殼提出了更高的要求 ，如希望外殼可防腐蝕、防銹、防塵、防水及具有自清 潔功能等。 Ο [0003] 為了使外殼具有防水的效果，習知的方法一般係將具有 疏水性的塗料塗覆於外殼的表面形成一疏水性薄膜。然 而，該疏水性薄膜雖具有防水的功能，但係灰塵沾上外 殼表面後，液滴不能有效的在外殼表面滾動來抹除灰塵 ，因此不具有自清潔功能。且，所使用的疏水性的塗料 通常為有毒的有機物，對環境及人體健康不利。 [0004] 研究表明在外殼上塗覆一奈米氧化鋅薄膜可起到防水的 〇 作用。然而，該奈米氧化鋅薄膜僅具有較大的靜態接觸 角（當液體滴在外殼表面上時，外殼表面和液滴切線的 夾角，即為靜態接觸角），不具有較小的動態接觸角， 液滴在外殼表面不易自行滑落，因而也不具有自清潔功 能，難以滿足消費者的需求。 【發明内容】 [0005] 鐾於此，有必要提供一種具有防水及自清潔功能的殼體 099124449 表單編號A0101 第3頁/共10頁 0992043005-0 201206300 [0006] [0007] [0008] [0009] [0010] [0011] [0012] [0013] [0014] 另外，還有必要提供一種上述殼體的製作方法。 —種殼體，其包括一基體、 —依久开/成於基體表面的 —氧切薄膜及，氧化鋅薄膜，所述二氧切薄膜具 有微米量級的結構，所述氧化鋅薄膜具有奈米量級的結 構。 、、 種喊體的製作方法’其包括如下步驟： 提供一基體； 採用溶膠法在該基體的表面形成一二氧化矽薄骐，該二 氧化矽薄膜具有微米量級的結構； 採用真空濺鍍法在該二氡化矽薄膜表面形成—氣化辞薄 膜，該氡化鋅薄膜具有奈米量級的結構。 相較於習知技術，所述的殼體通過在基體表面形成一具 有微米量級的二氧化石夕薄膜及具有奈米量級的氡化鋅薄 膜的微米-奈米複合結構塗層使得殼體的表面既具有 較大的靜態接觸角，又具有較小的動雇《接觸角，從而使 得殼體既具有防水功能，又具有自清潔功能◊該殼體的 製作方法不需要使用有毒的有機塗料，也不需經酸或蜮 處理，對環境及人體健康無害；且該方法簡單易行。 【實施方式】 請參閱圖1，本發明一較佳實施方式的殼體10包括一基體 11，及依次形成於基體U表面的二氧化矽薄骐13及氧化 鋅薄膜15。 基體11可由金屬材料或非金屬材料製成。該金屬材料可 099124449 表單編號A0101 第4頁/共1〇頁 0992043005-0 201206300 [0015] [0016] [0017] Ο [0018] [0019] [0020] [0021] 〇 [0022] 包括不錄鋼、I呂、銘合金、鋼、銅合金、鋅等。該非金 屬材料可包括塑膠、喊、破璃、聚合物等。 二氧化㈣膜13為-透明的薄膜，其具有微米量級的結 構。且該二氧化石夕薄膜13的表面粗輪度大小為微米級。 氧化鋅薄祕為-透明的薄膜，其具有奈米量級的結構 。該氧化鋅薄膜15的表面形成有奈米的氧化鋅棒陣. 所述二氧切薄膜13與氧化鋅薄膜15的總厚度在ι微米以 下’最好為〇. 1〜〇. 5微米。 本發明-較佳實歧式·作上述殼制的方法包括如 下步驟： ' / 提供一基體11。 ", · 採用溶膠法在該基體11的表面形成—二氧切薄膜13。 形成该_氧化梦薄膜13包括如下步驟： 製備一溶膠。該溶膠中可含有正矽酸乙酯、乙醇、鹽酸 及去離子水。製備所述溶膠時，可按主矽酸乙酯、乙醇 、鹽酸（36.5%)及去離子水 〜25的體積比量取上述各成分混合均勻，再進行磁力攪 样約1 - 5小時。 採用浸潰跡法’將麟基體u浸潰於該轉巾一定時 間，再勻速將該基體n拉出，使基體丨丨的表面被附著一 溶膠層，待該溶膠層於空氣中乾燥後，再對其進行熱處 理，以除去該溶膠層中含有的有機物，以在基體u的表 面形成一 一氧化矽薄膜13 ^所述熱處理的溫度可為200〜 099124449 表單編號A0101 第5頁/共10頁 0992043005-0 201206300 400〇C。 [0023] 採用真空濺鍍法在該二氧化矽薄膜1 3的表面形成一氧化 鋅薄膜1 5。形成該氧化鋅薄膜1 5包括如下步驟： [0024] 將形成有二氧化矽薄膜13的基體11放入一真空濺鍍機（ 圖未示）的鍍膜室中，抽真空該鍍膜室的真空度至4. Ox 10_3Pa，並加熱該鍍膜室的溫度至20〜300°C，以鋅為靶 材，並對該乾材施加-100〜-300V的偏壓，通入流量為 20〜300sccm (標準毫升每分）的反應氣體氧氣及流量 為10 0〜400sccm的工作氣體氬氣，然後開啟乾材的電源 ，於二氧化矽薄膜13的表面沉積所述氧化辞薄膜15。沉 積的時間可為20〜60分鐘。 [0025] 相較於習知技術，所述的殼體10通過在基體11表面形成 一具有微米量級的二氧化矽薄膜13及具有奈米量級的氧 化鋅薄膜15的微米-奈米複合結構塗層，可使得殼體10的 表面既具有較大的靜態接觸角，又具有較小的動態接觸 角，從而使得殼體10既具有防水功能，又具有自清潔功 能。該殼體10的製作方法不需要使用有毒的有機塗料， 也不需經酸或域處理，對環境及人體健康無害；且該方 法簡單易行。 【圖式簡單說明】 [0026] 圖1係本發明一較佳實施方式的殼體的剖視示意圖。 【主要元件符號說明】 [0027] 殼體：10 [0028] 基體：11 099124449 表單編號A0101 第6頁/共10頁 0992043005-0 201206300 [0029] 二氧化矽薄膜：13 [0030] 氧化鋅薄膜：15 〇201206300 VI. Description of the Invention: [Technical Field] The present invention relates to a housing and a method of fabricating the same, and more particularly to a housing having a waterproof and self-cleaning function and a method of manufacturing the same. [Prior Art] [0002] In recent years, consumers have become more and more demanding for 3C products. In addition to having more and stronger functions, it also puts higher requirements on the outer casing of the product, such as anti-corrosion, anti-rust, dustproof, waterproof and self-cleaning functions. 0003 [0003] In order to provide a waterproof effect to the outer casing, a conventional method generally applies a hydrophobic coating to the surface of the outer casing to form a hydrophobic film. However, although the hydrophobic film has a waterproof function, after the dust adheres to the surface of the outer casing, the liquid droplets cannot be effectively rolled on the surface of the outer casing to remove dust, so that the self-cleaning function is not provided. Moreover, the hydrophobic coatings used are often toxic organics that are detrimental to the environment and human health. [0004] Studies have shown that coating a nanometer zinc oxide film on the outer casing can serve as a waterproof enthalpy. However, the nano zinc oxide film only has a large static contact angle (the angle between the surface of the casing and the tangent of the droplet when the liquid drops on the surface of the casing, that is, the static contact angle), and does not have a small dynamic contact angle. The droplets do not easily slip off on the surface of the outer casing, and thus do not have a self-cleaning function, which is difficult to meet the needs of consumers. SUMMARY OF THE INVENTION [0005] Here, it is necessary to provide a housing with waterproof and self-cleaning function 099124449 Form No. A0101 Page 3 / Total 10 Page 0992043005-0 201206300 [0006] [0007] [0008] [0009 [0012] [0014] In addition, it is also necessary to provide a method of fabricating the above described housing. a casing comprising a substrate, an oxygen-cut film that is opened/formed on the surface of the substrate, and a zinc oxide film having a structure on the order of micrometers, the zinc oxide film having a naphthalene film The structure of the meter. a method for fabricating a body, comprising the steps of: providing a substrate; forming a cerium oxide thin layer on the surface of the substrate by a sol method, the cerium oxide film having a structure on the order of micrometers; using vacuum sputtering The method forms a gasification film on the surface of the bismuth telluride film, and the zinc telluride film has a structure on the order of nanometer. Compared with the prior art, the casing forms a shell by forming a micro-nano-scale composite film having a micron order on the surface of the substrate and a micro-nano composite structure having a zinc-nitride film of a nanometer order. The surface of the body has both a large static contact angle and a small mobile contact angle, so that the housing has both waterproof and self-cleaning functions. The housing is manufactured without the use of toxic organic The paint does not need to be treated with acid or hydrazine, and is harmless to the environment and human health; and the method is simple and easy. [Embodiment] Referring to Fig. 1, a casing 10 according to a preferred embodiment of the present invention includes a base 11, and a ceria thinner 13 and a zinc oxide film 15 which are sequentially formed on the surface of the base U. The base 11 may be made of a metal material or a non-metal material. The metal material can be 099124449 Form No. A0101 Page 4 / Total 1 page 0992043005-0 201206300 [0015] [0017] [0018] [0020] [0021] 〇 [0022] includes no steel recording , Ilu, Ming alloy, steel, copper alloy, zinc, etc. The non-metallic material may include plastic, shout, glass, polymer, and the like. The (4) film (4) is a transparent film having a structure on the order of micrometers. And the surface roughness of the surface of the SiO 2 film is on the order of micrometers. Zinc oxide is a thin-transparent film with a structure on the order of nanometers. The surface of the zinc oxide film 15 is formed with a zinc oxide rod array of nanometer. The total thickness of the oxidized film 13 and the zinc oxide film 15 is less than 10 μm, preferably 〇. 1 〇. 5 μm. The present invention - preferably a solid form - comprises the method of the above described shell comprising the steps of: - providing a substrate 11. ", · A dioxo film 13 is formed on the surface of the substrate 11 by a sol method. Forming the oxidized dream film 13 comprises the steps of: preparing a sol. The sol may contain ethyl orthosilicate, ethanol, hydrochloric acid, and deionized water. When preparing the sol, the above components may be uniformly mixed in a volume ratio of ethyl citrate, ethanol, hydrochloric acid (36.5%) and deionized water to 25, and magnetically stirred for about 1-5 hours. The substrate is immersed in the scallops for a certain period of time by using the immersion trace method, and the substrate n is pulled out at a uniform speed, so that the surface of the substrate is adhered to a sol layer, and after the sol layer is dried in the air, Further, heat treatment is performed to remove the organic matter contained in the sol layer to form a ruthenium oxide film 13 on the surface of the substrate u. The heat treatment temperature may be 200 to 099124449. Form No. A0101 Page 5 of 10 0992043005-0 201206300 400〇C. [0023] A zinc oxide film 15 is formed on the surface of the ceria film 13 by vacuum sputtering. Forming the zinc oxide film 15 includes the following steps: [0024] The substrate 11 on which the ceria film 13 is formed is placed in a coating chamber of a vacuum sputtering machine (not shown), and the vacuum degree of the coating chamber is evacuated. To 4. Ox 10_3Pa, and heating the temperature of the coating chamber to 20~300 ° C, using zinc as a target, and applying a bias of -100 to -300 V to the dry material, and the flow rate is 20 to 300 sccm (standard The reaction gas oxygen per minute and the flow rate of 10 to 400 sccm of the working gas argon, and then the power of the dry material is turned on, and the oxidized film 15 is deposited on the surface of the ceria film 13. The time of deposition can be 20 to 60 minutes. [0025] Compared to the prior art, the casing 10 forms a micron-nano composite having a micron-sized ceria film 13 and a nanometer-sized zinc oxide film 15 on the surface of the substrate 11. The structural coating can make the surface of the casing 10 have both a large static contact angle and a small dynamic contact angle, so that the casing 10 has both a waterproof function and a self-cleaning function. The method of manufacturing the casing 10 does not require the use of a toxic organic coating, and does not require acid or domain treatment, and is harmless to the environment and human health; and the method is simple and easy. BRIEF DESCRIPTION OF THE DRAWINGS [0026] FIG. 1 is a cross-sectional view of a housing in accordance with a preferred embodiment of the present invention. [Main component symbol description] [0027] Case: 10 [0028] Base: 11 099124449 Form No. A0101 Page 6 / Total 10 Page 0992043005-0 201206300 [0029] Ceria film: 13 [0030] Zinc oxide film: 15 〇
099124449 表單編號A0101 第7頁/共10頁 0992043005-0099124449 Form No. A0101 Page 7 of 10 0992043005-0