201013228 九、發明說明： 【發明所屬之技術領域】 本發明提供-種高擴光性奈米複合透光材料，其作法是在高 分子聚合物中’添加奈米溶膠’經溶劑揮發處理後，以播壓、射 出或壓鑄成型；成品可為細、平板、彎曲形狀或特定形狀其 擴光性較㈣質的高分子透光材料高，折射率依成侃率不同， 自1.20〜1.80不等。 ) 【先前技術】 高分子聚合物所形成的透光材料，由於存在質輕、便宜、形 狀多變等多項優點’已被廣泛的應用於各種需要透光的場合；但 如何提高透光材料的光線擴散性，以獲得較佳之照度均勻性（尤 其是配合LED等的點光源），為透光材料應用上的主要課題； 常用提尚透光材料的照度均勻性方法，可分四大類： (一） 利用透光材料幾何圖型，造成光擴散： 此為最常用的方法；在透光材料成型過程，利用模具使透光 具特定起伏的幾何圖型，配合單層使用或多層組合，使光線 通過不同角度的斜面而向各方向散射，而達到光線擴散的目 的；包括中華民國專利第1298417號、第1298778號、第 M338439號及第M334277號皆屬此類，形狀多變而加工容易為 其優點，但效果有限為其最大缺點，只能用在一般照明，不 能用在照度均勻性要求較高的設備（如：掃瞄器、電視等）。 (二) 將擴散劑均勻分佈於基材表面，以產生光的散射效果： 此類作法是以蒸鍍、滅鍍或轉印方式在透光基板上形成基膜 5 201013228 及光擴散層；其中，光擴散層為包含凸或凹狀微透鏡沉積， 且該沉積在橫方向與縱方向上的曲率不同；擴散效果良好為 其優點，但擴散劑會吸收光因而降低光使用效率為其共同缺 點，此外，濺鍍形成光擴散層的成本高為其另一缺點，中華 民國專利第1298100號及第1298210號此類：而中華民國專 利第1298417號則以轉印方式形成光擴散層，操作困難為其 特有缺失。 (三） 利用光源設計成像·· 此作法是以電腦配合電子控制方式，將輸出之_制而形成 圖像光，通過透鏡等光學系統射出而直接投射；更有使用窄 =帶三原色光源作為光源，取代液晶面板而使用栅狀光闕的 設計；此作法均勻性效果良好，但目前僅適用在投影機裝置 系統。 (四) 在透光材料原料中添加無機化合物·· 中華民國專利第1299806號所揭諸的作法，是“在透光材料 原料中添加帶磁性的無機化合物粒子，在溶融態時以磁場作 ，，藉著磁力驗特定區_域化合物粒子分佈密度相對 高於其它區域（第26項），，，藉著無機化合物粒子分佈集中 特定區域達到光擴散的目的；此作法存在無機化合物粒子會 阻撞光線而降低光使用效率，使得光源照射相對較暗的區域 變得更暗。 本專利發明’是在高分子聚合物樹脂中，添加無機的金屬氧 化物奈米粒子，·所使_奈絲子粒縣小於可見光波長⑸/5 可見光波長）且分散料’因此不纽射見光的穿透造成光使 201013228 用效率下降；而光線在穿透過程，受到高結晶性、高折射率的奈 米粒子作用而折射，因而導致光線行進方向偏移而產生光線擴散 的作用。 綜合上述，可以發現，本發明為一嶄新而具實用性及競爭力 的應用技術發明。 【發明内容】 Φ 本發明提供一種高擴光性奈米複合透光材料，其作法是在高 分子聚合物中，添加奈米溶膠，經溶劑揮發處理後，以擠壓、射 出或壓鑄成型。 其中，高分子聚合物可為亞克力（PMMA)、聚對苯二甲酸乙二 S旨（PET)、聚碳酸（PC)、聚苯乙烯（PS)及CR-39(碳酸稀丙醋· 二乙二醇酸）；其中’所使用的有機的高分子聚合物可為樹脂、粉 末或顆粒狀。 所使用的奈米粒子為結晶型二氧化鈦、氧化鋁、氧化辞的奈 參米粉體溶膠溶液；其中，奈米粉體溶膠溶液的溶劑可為水、甲醇、 乙醇或異丙醇；奈米粒子的粒徑分佈為1〜70nm，固含量為〇. 30%。 本高擴光性奈米複合透光材料製作，是在選定的高分子聚合 物’加入奈米粉體溶膠溶液；奈米粉體溶膠溶液的添加量依樹脂 種類及折射率要求而不同，可為0.5〜100毫升/公斤高分子聚合 物；攪拌均勻後，在持續攪拌狀態下’以加熱或減壓加熱方式去 除溶劑；去除溶劑後的高分子聚合物，可以擠壓、射出或壓鎮， 形成高擴光性奈米複合透光材料，其形狀可為薄膜、平板、彎曲 201013228 材料’其折射率依成份比率不同，自i 204 8〇不等。 【實施方式】 為使責審查員方便簡捷瞭解本發明之特徵内容與優點及其 ⑼達紅功效能夠更為顯現，祕將本發明為達成其發明目的之 整體構造上設計，配合附圖及實施例，作進一步詳細說明如下： 請參閱第一圖為本發明製作程序流程圖，由圖可知，有機高 ❹ *子聚合物卜加人溶劑2 ’攪拌均勻後，再加人無機金屬氧化物 奈米粒子3 ’再度猶均勻，經由加熱或減壓加熱方式去除溶劑4， 形成高擴光性奈米複合透光材料5 ; 及舉出實施例以說明本發明内容，但本發明之範圍並不只限 於此等的例子： 實施例一： 在10公斤亞克力粉末中，加入水性結晶型二氧化欽溶膠（固 含量：0· 2%，粒徑：2〜8nm) 2.5公升，授拌均勻後，在減麗加 , 熱系統（麼力：20毫米采柱；溫度··耽）持續搜拌、乾燥；乾 燥完成後’將亞克力粉末經造粒、射出成形成3毫米（3醜後^ 平板，以LED燈源對準亞克力平板邊緣照射，發現亞克力平板表 面（和LED燈源方向相垂直）會變亮，顯示有很好的光線擴散作 用。 實施例二： 在500克CR-39(碳酸稀丙酷·二乙二醇酸）中加入甲醇溶液 的結晶型二氧化鈦溶膠（固含量：1%，粒徑：2〜8咖）2〇毫升， 持續撲拌、加熱（溫度：8G°C)以去除甲醇；將處理過的CR 39 201013228 (碳酸烯丙酯•二乙二醇酸）進行聚合反應，作成光學鏡片，可 產生以較薄鏡片得到相同度數之致果。 雖然本創作以二項實施_露如上’财並_嫌定本創 =任何熟習此顧者’在稿離賴叙精朴料内，201013228 IX. INSTRUCTIONS: [Technical Field] The present invention provides a high-light-expanding nano-composite light-transmitting material, which is prepared by adding a nano-sol in a polymer to a solvent after volatilization. Pressing, injection or die-casting; the finished product can be fine, flat, curved or specific shape. Its light-expanding property is higher than that of (4) high-quality polymer light-transmitting material, and the refractive index varies depending on the rate of formation, ranging from 1.20 to 1.80. [Prior Art] The light-transmitting material formed by high-molecular polymer has been widely used in various applications where light transmission is required due to its light weight, low cost, and various shapes. However, how to improve the light-transmitting material Light diffusivity, to obtain better illumination uniformity (especially with point light source such as LED), is the main subject in the application of light-transmitting materials; commonly used to improve the uniformity of illumination of light-transmitting materials, can be divided into four categories: a) Using light-transmissive material geometry to cause light diffusion: This is the most common method; in the process of forming a light-transmissive material, the mold is used to make the light-transparent geometric pattern of the specific undulation, with a single layer or a combination of layers, so that Light scatters in various directions through different angles of slope, and achieves the purpose of light diffusion; including Republic of China Patent Nos. 1298417, 1298778, M338439, and M334277, all of which are of various shapes and easy to process. Its advantages, but limited effect is its biggest drawback, can only be used in general lighting, can not be used in equipment with higher illumination uniformity requirements (such as: scanner, Visual, etc.). (2) uniformly dispersing the diffusing agent on the surface of the substrate to produce a light scattering effect: such a method comprises forming a base film 5 201013228 and a light diffusing layer on the transparent substrate by evaporation, deplating or transfer; The light diffusion layer is deposited by a convex or concave microlens, and the deposition is different in curvature in the lateral direction and the longitudinal direction; the diffusion effect is good, but the diffusion agent absorbs light and thus reduces light use efficiency as a common disadvantage. In addition, the high cost of sputtering to form a light-diffusing layer is another disadvantage. In the case of the Republic of China Patent Nos. 1298100 and 1298210, the Republic of China Patent No. 1298417 forms a light-diffusing layer by transfer, which is difficult to operate. It is uniquely missing. (3) Using the light source to design the image · This method is based on the computer and the electronic control method, and the image is formed by the output of the image, and is directly projected by the optical system such as a lens; the narrower light source with the three primary colors is used as the light source. The design of the grating aperture is used instead of the liquid crystal panel; this method has a good uniformity effect, but is currently only applicable to the projector device system. (4) Adding an inorganic compound to a raw material of a light-transmitting material. · The method disclosed in the Patent No. 1299806 of the Republic of China is "adding a magnetic inorganic compound particle to a raw material of a light-transmitting material, and using a magnetic field in a molten state. By magnetically testing the specific area _ domain compound particle distribution density is relatively higher than other areas (item 26), by the specific distribution of inorganic compound particle concentration to achieve the purpose of light diffusion; this method exists in the presence of inorganic compound particles will block The light is used to reduce the light use efficiency, so that the light source illuminates the relatively darker region to become darker. The patent of the present invention is to add inorganic metal oxide nanoparticles to the polymer resin resin. The county is smaller than the visible light wavelength (5)/5 visible light wavelength) and the dispersion material 'so does not penetrate the light to cause the light to make the efficiency of 201013228 decrease; while the light is penetrated, the high crystallinity, high refractive index of the nano particles The effect is to refract, thereby causing the light traveling direction to shift and the light to diffuse. As a result of the above, it can be found that the present invention is a glimpse. The invention provides a high-light-expanding nano-composite light-transmitting material, which is prepared by adding a nano sol to a polymer, and evaporating the solvent by a solvent. After that, it is extruded, shot or die-cast. Among them, the high molecular polymer may be acrylic (PMMA), polyethylene terephthalate (PET), polycarbonate (PC), polystyrene (PS) and CR-39 (diethyl acrylate acetoxylate); wherein the organic polymer used may be a resin, a powder or a granule. The nanoparticles used are crystalline titanium dioxide, aluminum oxide, Oxidation of the sodium glutinous rice powder sol solution; wherein the solvent of the nano powder sol solution may be water, methanol, ethanol or isopropanol; the particle size distribution of the nano particles is 1 to 70 nm, and the solid content is 〇. 30% The high-density nano-composite light-transmitting material is prepared by adding a nano-polymer sol solution to the selected high-molecular polymer; the amount of the nano-powder sol solution varies depending on the type of resin and the refractive index requirement, and may be 0.5~ 100 millimeters Liter / kg of high molecular polymer; after stirring evenly, under continuous stirring, 'removing the solvent by heating or reduced pressure; the polymer after removing the solvent can be extruded, shot or pressed to form a highly diffused nano The composite light-transmissive material can be in the form of a film, a flat plate or a curved material. The material has a different refractive index depending on the composition ratio, and varies from i 204 to 8 【. [Embodiment] In order to facilitate the examiner to easily and easily understand the characteristics of the present invention The contents and advantages and the (9) red effect can be more apparent. The present invention is designed to achieve the overall purpose of the invention, and is further described in detail below with reference to the accompanying drawings and embodiments: The flow chart of the production process, as shown in the figure, the organic sorghum *Sub-polymer Bujia solvent 2 'stirring evenly, then adding the inorganic metal oxide nanoparticles 3 ' again uniform, removed by heating or reduced pressure heating Solvent 4, forming a high-light-expanding nanocomposite light-transmitting material 5; and examples are given to illustrate the contents of the present invention, but the scope of the present invention is not limited thereto Example: Example 1: In a 10 kg acrylic powder, add an aqueous crystalline oxidized sol (solid content: 0.2%, particle size: 2 to 8 nm) 2.5 liters, after mixing evenly, in the reduction of Lijia , the thermal system (Mu Li: 20 mm mining column; temperature ··耽) continuous search and drying; after drying, 'acrylic powder is granulated, shot to form 3 mm (3 ugly ^ flat plate, with LED light source Aligning the edge of the acrylic plate reveals that the surface of the acrylic plate (which is perpendicular to the direction of the LED light source) will brighten, showing good light diffusion. Example 2: adding 500 ml of a crystalline titanium dioxide sol (solid content: 1%, particle diameter: 2 to 8 coffee) of a methanol solution to 500 g of CR-39 (dilute bis-diethylene glycol acid) Continuously mix and heat (temperature: 8G ° C) to remove methanol; the treated CR 39 201013228 (allyl carbonate • diglycolic acid) is polymerized to form an optical lens, which can be obtained with thinner lenses. The result of the same degree. Although this creation is implemented in two projects, _ 如上 ’ ’ ’ _ 嫌 嫌 嫌 嫌 = = = 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何 任何
作各種更動與朗，目此本創作之彳 J 範圍所界枝鱗。 之申請專利 Φ 【圖式簡單說明】 第一圖為本發明製作程序流程圖。 【主要元件符號說明】 有機高分子聚合物1 溶劑2 無機金屬氧化物奈米粒子3 加熱或減壓加熱方式去除溶劑4 參 高擴光性奈米複合透光材料5 9Make a variety of changes and lang, this is the scope of this creation. Patent application Φ [Simple description of the drawing] The first figure is a flow chart of the production process of the present invention. [Explanation of main components] Organic polymer 1 Solvent 2 Inorganic metal oxide nanoparticles 3 Heat or decompression heating to remove solvent 4 Reference Highly diffused nanocomposite material 5 9