1296641 坎、發明說明： 【發明所屬之技術領域】 本發明係有關於一種可遮蔽電磁 物、一種由該組成物製成之可遮蔽 ％主料組成 及-種由該電導薄膜所組成之可電導薄膜、以 疋有關於一種擁有絕佳的電導性、黏性 :反尤 磨損性以及耐久性之電導塗料M成物，心！種=生二 材料的金屬粉，及-種水性?錢0旨分料 仏為電^ 【先前技術】 產生電磁波是由各個電子設傷中之電子零件所 備、醫療设備、個人筆記型電腦、電子商務設 2視力 血病、腦瘤、循«統異常、生殖能力 影響是與曰俱增。而且，二=關心電磁波對人體的 A ^ 在現在電子化產品都朝向輕量化 常曰：成、H子產品之個別元件所產生的電磁雜訊通 遭置有異常運行的因素，結果就會導致裝置 無線電話、及工㈣€子產品如電腦、 磁波有已更胁備、數位媒體播放器等產生的電 線電干#⑽/〜敝標準’對於電磁干擾（EMI)及無 從上、求Γ ^的放出標準也更嚴格 。由此可知，要遮蔽 k上述的各種電子梦里一 衣罝或兀件所產生之電磁波會變成將來 1296641 I重要的研究項目。 在先如技術中，遮敝電磁波的方法一般而言包括電 鍍真空 >儿積法（vacuum vap〇r dep〇siti〇n )以及喷霧批覆（spray coating)等方法。在先前技術當中，利用電鍍來遮蔽電磁波 的=法已經使用了很長一段時間，但是利用電鍍的方法會 • 使得製造成本增加、製造程序複雜及造成環境污染。因此， 有必要改善此技術的缺點。 再者，先前技術中，利用真空沉積法來遮蔽電磁波的 •方法只能用在有限的技術上，因為此—技術花費成本高 =，而且會有長期可靠度的問題。而在另一方面，利用喷 務批復的方式來遮敝電磁波的技術是目前所被廣泛使用的 方法，因為此一技術容易應用而且不會造成環境污染。 喷霧批覆的方式包括以一種包含樹脂接著劑及電導金 屬之混合物之溶劑來塗佈一基板。從喷霧批覆方式得到的 電導薄膜必需要有完美的導電性、基板黏著性以及抗磨損 性，而且甚至是在各種的環境下，初始的物理屬性都不會 •改變。特別是塗在電子裝置之内表面的電導薄膜並不會使 得初始的物理屬性有所改變，甚至是在經過環境循環二變 化以及使用電子裝置時也不會改變。當電導體或是電導薄 膜包覆在基質上的黏著性在環境改變時變得薄弱時，會導 致電子裝置功能減弱。由此可知，電導薄膜的耐久度^必 要的物理性質。 【發明内容】 1296641 . 本發明之主要目的係在提供一種在已知技術領域内的 技術要求來達成本發明之需求，而且本發明提供一種擁有 絕佳的耐久度之電導塗料組成物，其包括一種擁有適當粒 子大小的鍍銀銅粉，因此可以有更稠密的電子薄膜形式。 本發明之另一主要目的係在提供一種可遮蔽電磁波的 電導薄膜，其擁有絕佳的電磁波遮蔽效果及耐久度，然後 用來包覆在電子裝置上，即使在發生循環的環境變化下也 可以保持最初的物理性質，可用來應用到電子裝置上。 鲁 本％明之又一主要目的係在於提供一種遮蔽電磁波的 基板，其包含了上述的電導薄膜，因此可以有絕佳的電磁 波遮敝效果。 為達成上述之目的，一方面本發明係提供了一種電導 塗料組成物，包括了水性聚氨酯分散液（aque〇us polyurethane dispersion)、金屬粉、溶劑以及流變性控制劑 (rheology control agent)，該金屬粉係為一種平均顆粒大 J (D50)為 2 〜20 μιη 之鍵銀銅粉（siiver-c〇ated COpper • P〇Wder )或係為一種平均顆粒大小（D50)為2〜10 μιη之鍍銀 銅私與銀粉的混合粉末，該水性聚氨醋分散液係為混合至 少兩種不同之水性聚氨酯分散液。 在另方面’本發明係提供了一種可遮蔽電磁波的電 導薄膜，是由前述之電導塗料組成物所構成。 錢-步的說’本發明係提供了—種可遮蔽電磁波的 基板，其係由本發明之電導薄膜所構成。 1296641 【實施方式】 為月匕讓貝審查委員月匕更瞭解本發明之技術内容，特舉 以下之較佳具體實施例說明如下。 、本發明之-種電導塗料組成物係包括水性聚氨酉旨分散 液、金屬粉、溶劑以及流變性控制劑。 〃本發明之電導塗料組成物其包括：卜⑼·之水性聚 氨酯分散液、10〜60wt%之金屬粉、1〇〜6〇wt%之溶劑以 及5〜20 wt%之流變性控制劑。 以下將會詳細描述該電導塗料組成物之各原料組成。 就該電導塗料組成物中之金屬粉而言，最好是單獨使 用-種有適當大小的鍍銀銅粉或者是與銀粉混合使用。 在先4技術中，銀粉最主要使用電導塗料組成物中， 用以遮蔽私子1置產生的電磁波，例如行動電話就會因為 匕的j尺寸及整合電路之故而容易放出電磁波。銀粉擁有 絕佳電導性的優點，但是銀粉也有價格比其他的物質昂貴 的問題’結果就會導致成本的增加。同時，銅粉雖有價格 低廉的優點，但是也有會讓電導薄膜耐久度降低的問題產 生’所以在實際應用上是有困難的。 因此，在先前技術中，為了解決上述的問題，金屬粉 的成分就用鍍銀銅粉來構成。然而，在此情況之下，者使 用平均獅大小_)為3〇〜50μηι之細粉時，用此細ς做 成的電導塗料組成物所製的電導薄膜就會有電導薄膜的表 面粗糙及耐久度減低的問題。 在本fx明中，為了-次解決以上所述的問題，就使用 1296641 ..一種平均顆粒大小為2〜2〇μηι之錢銀銅粉（此為最佳顆粒 大小（D50)之範圍）來單獨組成金屬粉或者是和平均顆粒大 小為1〜10 μηι之銀粉混合。甚至為了達到更好的效果，可 以使用平均顆粒大小為8〜20 μηι之鍍銀銅粉單獨組成或 者是和平均顆粒大小為4〜10 μιη之銀粉混合而成。 如果使用平均顆粒大小小於2 μηι之鍍銀銅粉，就會因 為銅粉價格的問題而造成金屬粉的成本大幅提高，但如果 使用平均顆粒大小超過20 μιη之鍍銀銅粉，包覆電導薄膜 φ 的表面就會變得粗糙而且耐久度會下降，就如同前面所述 的一樣。 現舉一個具體貫施例如下，本發明使用之鑛銀銅粉可 使用 AgCu-400、AgCu-500 及 AgCu-550 (跟據美國 Ferro Corp.商業通用規定）。本發明使用之銀粉可使用sf-7〇A、 SF-9ED 以及 SF-9 (Ferro Corp·，USA)及 SF_162 (HRP Co·)。 當本發明使用特定顆粒大小的鑛銀銅粉和銀粉混合成 金屬粉時，其中鍍銀銅粉與銀粉之間的重量比混合比例的 •範圍為百分之99比1到百分之％比70之間。如果鍍銀銅 粉佔混合金屬粉的重量不到百分之3〇，就會不符合使用鍍 銀銅粉的經濟效益。 再者，本發明電導塗料組成物中的金屬粉可以再經過 脂肪酸C4-C22表面處理，經過脂肪酸表面處裡的金屬粉可 以有防止氧化及增進和樹脂接著劑之間的吸附力。上述所 提運用在本發明之脂肪酸可使用（可包括但沒限制）油酸 (oleic acid )、硬脂酸（stearic acid )及其他類似的脂肪酸。 構成本發明電導塗料組成物之一的金屬粉最好佔總重 1296641 .的範圍為1 〇〜60 wt%。如果使用的金屬粉總重少於1 ο wt%，該組成物的電導性將會減弱；如果總重多於60 wt%， 該組成物的製造成本將會增加。 本發明電導塗料組成物之另一組成成分係為水性聚氨 酯分散液，並且是使用至少兩種不同的水性聚氨酯分散液。 在較佳的情況下，可以使用至少一種由異氰酸酯 (isocyanate )及有芳香族結構的聚酯基多元醇 (polyester-based p〇ly〇l)所反應成的聚氨酯分散液（A) φ 以及至少一種由異氰酸酯與有脂肪族結構的聚酯基多元醇 所反應生成的聚氨酯分散液（B)之一混合物。 在此考量之下，該聚氨酯分散液（A)與該聚氨酯分散 液（B)之間的重量比係為百分之70比30到百分之20比 80之間，並且該聚氨酯分散液中之固體重量百分比濃度範 圍係為1〜50 wt%。使用上述的至少兩種不同結構之聚氨 酯分散液所組成的分散液會比單一的聚氨醋分散液提供更 佳的黏者度及鹽水阻抗。 • 一般市售可當作聚氨酯分散液（A)可為PS-3以及PS-6 (Ortec Inc·)和 SANCURE 1591 (Noveon Inc·);可當作聚氨酯分 散液（B )可為 SANCURE 12954 以及 SANCURE 2715 (Noveon Inc·)和 Neorez_R-9679 (Avecia Inc.) 〇 構成本發明電導塗料組成物之一的聚氨酯分散液最好 佔總重的範圍為1〜60 wt%。如果使用的聚氨酯分散液總 重少於1 wt%，該組成物的表面黏著度及磨損阻抗將會減 弱；如果總重多於60 wt%，會造成該組成物的電阻增加。 本發明之電導塗料組成物的另一構成物之溶劑係為至 1296641 少一種選自於由曱醇（methyl alcohol )、乙醇（ethyl alcohol )、異丙醇（isopropyl alcohol )、醋酸乙醋（ethyl acetate )、曱基環丙醯酮（methyl pyrrolidone )、丙酮 (acetone )、曱氧基乙醇醚（methyl cellosolve )、乙氧基乙 醇醚（ethyl cellosolve)及乙二醇丁醚（butyl cellosolve) 所組成群組之溶劑。 構成本發明電導塗料組成物之一的溶劑最好佔總重的 範圍為10〜60 wt%。 鲁 流變性控制劑是另外一種構成電導塗料組成物的原 料，可以使用丙烯酸聚合物。具體來說，流變性控制劑係 可以使用如EX-2及C676 (聚缓乙烯Carbopol)和Rheolate 5000 (Rhenox)等。 流變性控制劑最好為一糊狀體，糊狀體可預防流變性 控制劑聚合，若是粉狀體就可能使流變性控制劑聚合。糊 狀體的流變性控制劑可利用先前技術來製得。 本發明電導塗料組成物中的流變性控制劑最好佔總重 ❿的5〜20 wt%，甚至是8〜15 wt%。如果流變性控制劑少於 5 wt% ’金屬粉將會沉澱；如果多於20 wt%，將會導致電 阻的增加。 同日才’如果有需要’本發明之電導塗料組成物可以額 外包括其他添加物0· 1〜10 wt%，像是平坦劑（ieveHng agent)及分散劑（dispersing agent)，只要不會影響到本發 明的結果。 本發明電導塗料組成物可製成一種塑膠外罩（如用聚 碳酸酯（polycarbonate )、碳酸鹽（carbonate alloys )、内稀睛 _ 11 1296641 .丁 —烯-笨乙烯（acrylo-butadiene-styrene alloys )等製造）上的 塗料’用來遮蔽電磁波，利用在行動電話、PDA、個人筆 吕己型電腦、汽車導航設備、GPS設備等等的設備上。 以下將舉更多的本發明之具體實施例。需注意的是， 以:的實施例的目的只是舉例說明，而並非在限制本發明 的範圍。 制劑的製造（聚羧乙嬌EZ-2 ) 本發明使用之流變性控制劑係依據以下的步驟： 在一個容器中裝入950公克之乙醇，再利用高速攪拌 機攪拌達到700 rpm的時候，加入20公克的聚羧乙烯 EZ-2。在攪拌達800 rpm30分鐘後，此溶液就可以和公 克的Ethomeen® C-25.(Akzo)中和。在加入胺類之後，再攪 拌達1000 rpm —小時後，由此製成糊狀的流變性控制劑。 實施例一： 在 Dispermat D-51580 模組(VMA GETZMANN GMBH) 内加入70公克的水性聚氨酯分散液（一種以重量比為2 •比 1 的 SANCURE 12954 (Noveon Inc. USA)及 REACTISOL PS-3 (Ortec Inc·，USA)之混合液混合而成），接 著加入平均顆粒大小（D50)為8〜15 μηι之125公克商業 通用規定之鍍銀銅粉(AgCu-550; Ferro Corp·，USA)，再用 2000 rpm速率攪拌30分鐘。此攪拌過的溶液接著再加入 245公克的乙醇後，繼續用500 rpm速率搜拌1〇分鐘，所 得到的溶液就可以加入6 0公克之如所製的聚叛乙稀，再用 1000 rpm速率擾拌30分鐘來控制溶液的黏稠度。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a maskable electromagnet, a maskable % main component made of the composition, and an electrically conductive material composed of the conductive film. The film, the 疋 has a kind of electric conductivity coating with excellent electrical conductivity, viscosity: anti-wearing and durability, M! Kind of metal powder of raw material, and - water type? Money 0 is divided into materials ^ [Previous technology] Electromagnetic waves are generated by electronic components in various electronic devices, medical equipment, personal notebook computers E-commerce sets 2 visual blood diseases, brain tumors, and the effects of reproductive abnormalities and reproductive abilities are increasing. Moreover, the second = concern that the electromagnetic wave is on the human body A ^ In the current electronic products are towards the light weight: the electromagnetic noise generated by the individual components of the Cheng and H sub-products is subject to abnormal operation, and the result is Device wireless telephone, and workers (four) € sub-products such as computers, magnetic waves have more threats, digital media players, etc. generated by the electric wire # (10) / ~ 敝 standard 'for electromagnetic interference (EMI) and nowhere, seeking Γ ^ The release criteria are also stricter. From this, it can be seen that the electromagnetic waves generated by the various electronic dreams of the above-mentioned clothing or shackles will become an important research project of the future 1296641 I. In the prior art, the method of concealing electromagnetic waves generally includes methods such as electroplating vacuum, vacuum vap〇r dep〇siti〇n, and spray coating. In the prior art, the method of using electroplating to shield electromagnetic waves has been used for a long time, but the use of electroplating may result in increased manufacturing costs, complicated manufacturing procedures, and environmental pollution. Therefore, it is necessary to improve the shortcomings of this technology. Furthermore, in the prior art, the method of using vacuum deposition to shield electromagnetic waves can only be used in a limited technique because it is costly and has long-term reliability problems. On the other hand, the technique of concealing electromagnetic waves by means of a spray reply is a widely used method because the technique is easy to apply and does not cause environmental pollution. The method of spray coating involves coating a substrate with a solvent comprising a mixture of a resin binder and a conductive metal. Conductive films obtained from spray coatings must have perfect electrical conductivity, substrate adhesion and abrasion resistance, and even in a variety of environments, the initial physical properties will not change. In particular, the electrically conductive film applied to the inner surface of the electronic device does not change the initial physical properties, even when subjected to environmental cycling and when the electronic device is used. When the adhesion of the electrical conductor or the electrically conductive film to the substrate becomes weak when the environment changes, the function of the electronic device is weakened. From this, it is known that the durability of the electrically conductive film is a necessary physical property. SUMMARY OF THE INVENTION The primary object of the present invention is to provide a technical requirement in the known art to meet the needs of the present invention, and the present invention provides a conductive coating composition having excellent durability, including A silver-plated copper powder with the right particle size, so it can be in the form of a denser electronic film. Another main object of the present invention is to provide an electrically conductive film capable of shielding electromagnetic waves, which has excellent electromagnetic wave shielding effect and durability, and is then coated on an electronic device, even in the event of a cyclical environmental change. Maintaining the original physical properties can be applied to electronic devices. Another main object of Luben% is to provide a substrate for shielding electromagnetic waves, which comprises the above-mentioned electrically conductive film, so that it can have an excellent electromagnetic wave concealing effect. In order to achieve the above object, in one aspect, the present invention provides an electrically conductive coating composition comprising an aque〇us polyurethane dispersion, a metal powder, a solvent, and a rheology control agent. The powder is a silver-copper powder (siiver-c〇ated COpper • P〇Wder) with an average particle size J (D50) of 2 to 20 μηη or a plating with an average particle size (D50) of 2 to 10 μηη. A mixed powder of silver-copper and silver powder, the aqueous polyurethane dispersion is a mixture of at least two different aqueous polyurethane dispersions. In another aspect, the present invention provides an electrically conductive film that shields electromagnetic waves and is composed of the foregoing electrically conductive coating composition. The present invention provides a substrate that shields electromagnetic waves and is composed of the electrically conductive film of the present invention. 1296641 [Embodiment] The following is a description of the preferred embodiments of the present invention for a more detailed description of the technical contents of the present invention. The electroconductive coating composition of the present invention comprises an aqueous polyurethane dispersion, a metal powder, a solvent, and a rheology control agent. The electroconductive coating composition of the present invention comprises: an aqueous polyurethane dispersion of (9), a metal powder of 10 to 60% by weight, a solvent of 1 to 6 % by weight, and a rheology controlling agent of 5 to 20% by weight. The composition of each raw material of the electrically conductive coating composition will be described in detail below. In the case of the metal powder in the electrically conductive coating composition, it is preferred to use it alone or in combination with a silver powder of an appropriate size or in combination with silver powder. In the prior art 4, the silver powder is mainly used in the conductive coating composition to shield the electromagnetic waves generated by the private one. For example, the mobile phone can easily emit electromagnetic waves because of the j size and integrated circuit. Silver powder has the advantage of excellent electrical conductivity, but silver powder is also more expensive than other substances. The result is an increase in cost. At the same time, although copper powder has the advantage of being inexpensive, but there is also a problem that the durability of the conductive film is lowered, so it is difficult in practical application. Therefore, in the prior art, in order to solve the above problems, the composition of the metal powder is composed of silver-plated copper powder. However, in this case, when the average lion size _) is 3 〇 to 50 μηι fine powder, the conductive film made of the conductive coating composition made of the fine enamel has the surface roughness of the conductive film and The problem of reduced durability. In this fx, in order to solve the above-mentioned problems, the use of 1296641: a silver-copper powder with an average particle size of 2~2〇μηι (this is the range of the optimum particle size (D50)) The metal powder is separately composed or mixed with silver powder having an average particle size of 1 to 10 μη. Even for better results, it can be formed by using a silver-plated copper powder having an average particle size of 8 to 20 μηι or a mixture of silver powder having an average particle size of 4 to 10 μm. If a silver-plated copper powder with an average particle size of less than 2 μηι is used, the cost of the metal powder will be greatly increased due to the problem of the price of the copper powder, but if the silver-plated copper powder having an average particle size of more than 20 μη is used, the conductive film is coated. The surface of φ will become rough and the durability will decrease, as described above. For example, the present invention can be used with AgCu-400, AgCu-500 and AgCu-550 (according to the Ferro Corp. commercial general regulations). As the silver powder used in the present invention, sf-7〇A, SF-9ED, and SF-9 (Ferro Corp., USA) and SF_162 (HRP Co.) can be used. When the present invention uses a specific particle size of silver-mineral copper powder and silver powder to be mixed into a metal powder, the ratio of the weight ratio of the silver-plated copper powder to the silver powder is in the range of 99 to 1 to 100%. Between 70. If the silver-plated copper powder accounts for less than 3 percent by weight of the mixed metal powder, it will not meet the economic benefits of using silver-plated copper powder. Further, the metal powder in the electrically conductive coating composition of the present invention can be further subjected to surface treatment of the fatty acid C4-C22, and the metal powder in the surface of the fatty acid can prevent oxidation and enhance the adsorption force with the resin adhesive. The above-described fatty acids used in the present invention may be used (including but not limited to) oleic acid, stearic acid, and other similar fatty acids. The metal powder constituting one of the compositions of the electrically conductive coating material of the present invention preferably accounts for 1 〇 to 60 wt% of the total weight of 1296641. If the total weight of the metal powder used is less than 1 ο wt%, the electrical conductivity of the composition will be weakened; if the total weight is more than 60 wt%, the manufacturing cost of the composition will increase. Another component of the electrically conductive coating composition of the present invention is an aqueous polyurethane dispersion, and at least two different aqueous polyurethane dispersions are used. In a preferred case, at least one polyurethane dispersion (A) φ which is reacted with an isocyanate and a polyester-based p- lysyl group may be used and at least A mixture of one of polyurethane dispersions (B) formed by reacting an isocyanate with a polyester-based polyol having an aliphatic structure. Under this consideration, the weight ratio between the polyurethane dispersion (A) and the polyurethane dispersion (B) is between 70 and 30 to 20 to 80 percent, and the polyurethane dispersion is The solid weight percentage concentration ranges from 1 to 50 wt%. Dispersions comprising at least two different configurations of polyurethane dispersions described above provide better viscosity and salt water resistance than a single polyurethane dispersion. • Commercially available as a polyurethane dispersion (A) for PS-3 and PS-6 (Ortec Inc.) and SANCURE 1591 (Noveon Inc.); as a polyurethane dispersion (B) for SANCURE 12954 and SANCURE 2715 (Noveon Inc.) and Neorez_R-9679 (Avecia Inc.) 聚氨酯 The polyurethane dispersion constituting one of the compositions of the electrically conductive coating of the present invention preferably ranges from 1 to 60% by weight based on the total weight. If the total weight of the polyurethane dispersion used is less than 1 wt%, the surface adhesion and wear resistance of the composition will be weakened; if the total weight is more than 60 wt%, the resistance of the composition will increase. The other constituent of the electrically conductive coating composition of the present invention has a solvent of up to 1296641, one selected from the group consisting of methyl alcohol, ethyl alcohol, isopropyl alcohol, and ethyl acetate (ethyl acetate). Acetate), methyl pyrrolidone, acetone, methyl cellosolve, ethyl cellosolve, and butyl cellosolve The solvent of the group. The solvent constituting one of the compositions of the electrically conductive coating material of the present invention preferably ranges from 10 to 60% by weight based on the total weight. The rheology control agent is another raw material constituting the composition of the electrically conductive coating, and an acrylic polymer can be used. Specifically, rheology control agents such as EX-2 and C676 (Carbopol) and Rheolate 5000 (Rhenox) can be used. The rheology controlling agent is preferably a paste which prevents polymerization of the rheology controlling agent, and if it is a powder, it is possible to polymerize the rheology controlling agent. The rheology control agent for the paste can be made using prior art techniques. The rheology controlling agent in the electrically conductive coating composition of the present invention preferably accounts for 5 to 20% by weight or even 8 to 15% by weight based on the total weight. If the rheology control agent is less than 5 wt%, the metal powder will precipitate; if it is more than 20 wt%, it will cause an increase in resistance. On the same day, 'if necessary', the electrically conductive coating composition of the present invention may additionally include other additives 0·1 to 10 wt%, such as a flat agent (ieveHng agent) and a dispersing agent, as long as it does not affect the present The result of the invention. The conductive coating composition of the present invention can be made into a plastic outer cover (for example, polycarbonate, carbonate alloys, internal thinner _ 11 1296641. acrylo-butadiene-styrene alloys) The coatings used in manufacturing are used to shield electromagnetic waves and are used in devices such as mobile phones, PDAs, personal pens, computers, car navigation devices, GPS devices, and the like. More specific embodiments of the invention are set forth below. It is to be noted that the following examples are intended to be illustrative only and not to limit the scope of the invention. Preparation of the preparation (Polycarboxylate EZ-2) The rheology control agent used in the present invention is based on the following steps: 950 grams of ethanol is charged into a container, and then stirred at a high speed mixer to reach 700 rpm, and 20 is added. Gram of carboxyvinyl EZ-2. After stirring for 30 minutes at 800 rpm, the solution was neutralized with gram of Ethomeen® C-25. (Akzo). After the addition of the amine, stirring was carried out for 1000 rpm - an hour, whereby a paste-like rheology control agent was prepared. Example 1: Add 70 grams of aqueous polyurethane dispersion (a SANCURE 12954 (Noveon Inc. USA) and REACTISOL PS-3 (with a weight ratio of 2 to 1) in a Dispermat D-51580 module (VMA GETZMANN GMBH) A mixture of Ortec Inc., USA) was mixed with 125 g of silver-plated copper powder (AgCu-550; Ferro Corp., USA) with an average particle size (D50) of 8 to 15 μηι. Stir at a rate of 2000 rpm for another 30 minutes. After the stirred solution is further added with 245 grams of ethanol, the mixture is further mixed at a rate of 500 rpm for 1 minute, and the resulting solution can be added to 60 grams of polytetramethylene as prepared, and then at a rate of 1000 rpm. Spoil for 30 minutes to control the consistency of the solution.
12 1296641 ’ 準備好的樣品用1 〇〇 vol%乙醉來稀釋’此稀釋液被喷 在一個聚碳酸酯薄片（長15 cm X寬6 cm X厚2 mm )上， 形成厚度12·5 μπι之乾式塗佈，接著在乾燥電爐中用溫度 6〇 °C烘乾15分鐘。此樣品的物理性質推測的結果列在了 面的表格1當中。 實施例二： 在 Dispermat D-51580 模組(VMA GETZMANN GMBH) 内加入85公克的水性聚氨酯分散液（一種以重量比為2 •比 1 的 SANCURE 12954 (Noveon Inc·，USA)及 REACTISOL PS_3 (Ortec Inc·，USA)之混合液混合而成），接 者加入平均顆粒大小（D50)為8〜15 μιη之loo公克商業通 用規定之銀粉（SF_70A; Ferro Corp·，USA)及1〇〇公克商業 通用規定之鑛銀銅粉(AgCu-550; Ferro Co·, USA)混合，再 用2000 rpm速率攪拌30分鐘。此攪拌過的溶液接著再加 入140公克的乙醇後，繼續用500 rpm速率擾摔分鐘， 所付到的洛液就可以加入75公克之前所製的聚叛乙稀，再 # 用1⑽〇 rpm速率攪拌30分鐘來控制溶液的黏稠度。 準備好的樣品被100 vol%乙醇所稀釋，此稀釋液被喷 在一個聚碳酸酯薄片（長15cmx寬6cmx厚2mm)上， 形成厚度12·5 μιη之乾式塗佈’接著在乾燥電爐中用溫度 60 °C烘乾15分鐘。此樣品的物理性質推測的結果列在下 面的表一當中。 比較實施例一： 和實施例一製造步驟相同，除了金屬粉使用平均顆粒 大小（D50)為35 μιη之商業通用規定之鍍銀銅粉(AgCu_25〇; 13 129664112 1296641 'The prepared sample is diluted with 1 〇〇 vol% of the drunk'. This dilution is sprayed onto a polycarbonate sheet (length 15 cm X width 6 cm X thickness 2 mm) to form a thickness of 12·5 μπι The dry coating was followed by drying in a dry electric furnace at a temperature of 6 ° C for 15 minutes. The results of the physical properties of this sample are summarized in Table 1. Example 2: Add 85 grams of aqueous polyurethane dispersion in a Dispermat D-51580 module (VMA GETZMANN GMBH) (a SANCURE 12954 (Noveon Inc., USA) and REACTISOL PS_3 (Ortec) with a weight ratio of 2 to 1. The mixture of Inc., USA) is mixed with the average particle size (D50) of 8~15 μηη loo grams of commercial silver powder (SF_70A; Ferro Corp., USA) and 1 〇〇 gram commercial The general purpose silver ore copper powder (AgCu-550; Ferro Co., USA) was mixed and stirred at 2000 rpm for 30 minutes. After the stirred solution was further added with 140 g of ethanol, the mixture was further pulverized at a rate of 500 rpm, and the amount of the solution was added to the polyglycol prepared before 75 g, and then at a rate of 1 (10) rpm. Stir for 30 minutes to control the consistency of the solution. The prepared sample was diluted with 100 vol% ethanol. This dilution was sprayed onto a polycarbonate sheet (length 15 cm x width 6 cm x thickness 2 mm) to form a dry coating with a thickness of 12·5 μm, and then used in a dry electric furnace. Dry at 60 °C for 15 minutes. The results of the physical properties of this sample are summarized in Table 1 below. Comparative Example 1: The same procedure as in the first embodiment was carried out except that the metal powder used silver-plated copper powder (AgCu_25〇; 13 1296641) having a general particle size (D50) of 35 μm.
Ferro Co·，USA) 〇 比較實施例二： 和實施例二製造步驟相同，除了金屬粉係使用平均顆 粒大小（D50)為45μιη之商業通用規定之銀粉（SF-70A· Ferro Corp·，USA) 100公克及商業通用規定之鍍銀銅粉 (AgCu-200; Ferro Co·，USA) 100 公克混合而成。 比較實施例三： 和實施例一製造步驟相同，除了該水性聚氨酯分散液 •單獨由 SANCURE 12954 (Noveon Inc·，USA)所構成。 比較實施例四： 和實施例一製造步驟相同，除了該水性聚氨酯分散液 單獨由 REACTISOL PS-3 (Ortec Inc·，USA)所構成。 比較實施例五： 和實施例一製造步驟相同，除了該水性聚氨酯分散液 單獨由 SANCURE 12954 (Noveon Inc·, USA)所構成，以及 金屬粉使用平均顆粒大小（D50)為35 μιη之商業通用規定 鲁 之鑛銀銅粉(AgCu-250; Ferro Co·，USA)所構成。 表一Ferro Co., USA) 〇Comparative Example 2: Same as the manufacturing procedure of Example 2 except that the metal powder is a commercial powder having an average particle size (D50) of 45 μm, which is commercially available (SF-70A· Ferro Corp., USA). 100 grams of silver-plated copper powder (AgCu-200; Ferro Co·, USA) 100 grams mixed with commercial regulations. Comparative Example 3: The same procedure as in Example 1 except that the aqueous polyurethane dispersion was separately composed of SANCURE 12954 (Noveon Inc., USA). Comparative Example 4: The same procedure as in Example 1 except that the aqueous polyurethane dispersion was separately composed of REACTISOL PS-3 (Ortec Inc., USA). Comparative Example 5: The same manufacturing procedure as in Example 1, except that the aqueous polyurethane dispersion was separately composed of SANCURE 12954 (Noveon Inc., USA), and the commercial powder used a general particle size (D50) of 35 μm. Luzhi mine silver copper powder (AgCu-250; Ferro Co·, USA). Table I
電阻 黏著度 實施例一 0.050 5B 實施例二 0.015 5B 比較實施例一 0.050 5B 比較實施例二 0.015 5B 1296641Resistance Adhesion Example 1 0.050 5B Example 2 0.015 5B Comparative Example 1 0.050 5B Comparative Example 2 0.015 5B 1296641
比較實施例三 0.050 2B 比較實施例四 0.050 2B 比較實施例五 0.060 1B 【物理性質估計】 *電阻：由電錶量測單位面積的表面電阻而得。 *黏著度：由漆膜附著力測試（ASTMD3359)估算而來。 由實施例1-2及比較實施例1-5所得的電導薄膜，其 估算的财久性結果列在下面表二中。 *在高溫及高濕度下實施：在溫度85 QC及溼度85%環 境下72小時後估算而得。 *在南溫差下貫施·在溫度-20 °C的J哀境下1小時接 著放置到溫度80 °C的環境下1小時，如此循環20 次之後估算而得。 *鹽水阻抗：放置在溫度25。(：的5%鹽水72小時之 後，再在溫度60 QC下烘乾20分鐘。 表二 最初物理性 質（乾燥後） 高溫及高濕 度之物理性 質 面溫差下的 影響 鹽水阻抗下 電阻 黏著 度 電阻 黏著 度 電阻 黏著 度 電阻 黏著 度 15 1296641Comparative Example 3 0.050 2B Comparative Example 4 0.050 2B Comparative Example 5 0.060 1B [Physical Properties Estimation] * Resistor: obtained by measuring the surface resistance per unit area of an electric meter. * Adhesion: Estimated by the film adhesion test (ASTMD3359). The estimated longevity results of the electrically conductive films obtained from Examples 1-2 and Comparative Examples 1-5 are listed in Table 2 below. * Implemented at high temperature and high humidity: estimated after 72 hours at a temperature of 85 QC and a humidity of 85%. * Under the south temperature difference, it was placed in an environment of 80 °C for 1 hour at a temperature of -20 °C for 1 hour, and then estimated after 20 cycles. *Saline resistance: placed at temperature 25. (: 5% salt water after 72 hours, then dry at temperature 60 QC for 20 minutes. Table 2 initial physical properties (after drying) physical properties of high temperature and high humidity surface temperature difference under salt water resistance resistance adhesion resistance adhesion Degree resistance adhesion resistance 15 1296641
實施 例一 0.050 5Β 0.050 5Β 0.050 5Β 0.050 5Β 實施 例二 0.015 5Β 0.015 5Β 0.015 5Β 0.015 5Β 比較 實施 例一 0.050 5Β 0.200 0Β 0.080 4Β 0.200 0Β 比較 實施 例二 0.015 5Β 0.100 1Β 0.020 4Β 0.100 1Β 比較 實施 例三 0.050 2Β 0.200 1Β 0.080 2Β 0.200 1Β 比較 實施 例四 0.050 3Β 0.200 1Β 0.080 3Β 0.200 1Β 比較 實施 例五 0.050 4Β 0.300 1Β 0.100 3Β 0.300 1Β 如表二所述，由之前所述的一種包括平均顆粒大小為 30〜50 μπι之鍍銀銅粉的電導塗料薄膜組成的電導薄膜， 在耐久度的估算下有電阻增加及黏著性減弱的情形。相對 的，由之前所述的一種平均顆粒大小為2〜20 μιη之鑛銀銅 16 1296641 粉的電導塗料薄膜組成的電導薄膜，在耐久度的估算下， 會保持其最=的物理狀態。而且，和單—的聚氨醋分散液 目比’由有芳香&結構的聚酯基多元醇所得的聚氨醋分散 ，及有脂職結構的聚g旨基多元賴得㈣氨自旨分散液的 混合液就有絕佳的黏著性及鹽水阻抗。Example 1 0.050 5Β 0.050 5Β 0.050 5Β 0.050 5Β Example 2 0.015 5Β 0.015 5Β 0.015 5Β 0.015 5Β Comparative Example 1 0.050 5Β 0.200 0Β 0.080 4Β 0.200 0Β Comparative Example 2 0.015 5Β 0.100 1Β 0.020 4Β 0.100 1Β Comparative Example 3 0.050 2Β 0.200 1Β 0.080 2Β 0.200 1Β Comparative Example 4 0.050 3Β 0.200 1Β 0.080 3Β 0.200 1Β Comparative Example 5 0.050 4Β 0.300 1Β 0.100 3Β 0.300 1Β As described in Table 2, the one described above includes an average particle size of 30 A conductive film composed of a conductive coating film of ~50 μπι silver-plated copper powder has an increase in resistance and a weakened adhesion under the estimation of durability. In contrast, the electrically conductive film consisting of a conductive coating film of the mineral silver copper 16 1296641 powder having an average particle size of 2 to 20 μm as described above maintains its most physical state under the estimation of durability. Moreover, the mono-polyurethane dispersion is more dispersed than the polyurethane obtained from the polyester-based polyol having an aromatic & structure, and the poly-glycol having a fatty structure. The dispersion of the dispersion has excellent adhesion and salt water resistance.
冬4所述由本發明電導塗料組成物所構成的電導薄 膜有絕佳的電導性質及基質黏著性，而且在耐久度估算 :初期的物理性質不會改變。因此，本發明電導塗料組 =所構成的電導薄膜可以遮蔽電磁波範圍係從數MHz =GHz。於是’本發日狀電導㈣組成物可以有效地解 ΐίΐ種^子裝置’例如行動通訊設備、個人筆記型電腦、 ^ ¥航&備、商㈣置及醫療裝置等等的内部電子元件 u二：所造成的電磁干擾㈣及無線電干擾 、.示上所陳，本發明無論就㈣、手段及功效，在 異於f知？術之特徵，懇請貴審查委員明察， 上过諸^ ^利，俾嘉惠社會’實感德便。惟餘意的是， 二夕細列僅係為了便於說明而舉 【圖式簡單說明】The electrically conductive film composed of the electrically conductive coating composition of the present invention described in the winter 4 has excellent electrical conductivity and matrix adhesion, and is estimated in durability: the initial physical properties are not changed. Therefore, the electrically conductive coating set of the present invention = the electrically conductive film formed can shield the electromagnetic wave range from several MHz = GHz. Therefore, the composition of the Japanese-made conductance (4) can effectively solve the internal electronic components of the device, such as mobile communication devices, personal notebook computers, mobile phones, medical devices, medical devices, and the like. Second: the electromagnetic interference (4) and radio interference caused by the invention, the invention, regardless of (four), means and efficacy, is different? The characteristics of the surgery, please ask your review board to see clearly, and have passed the "^利, 俾嘉惠社会" real feelings. The only thing left is that the second eve of the series is only for the convenience of explanation.
Af 〇 【元件代表符號說明】 17 1296641Af 〇 [Component Description Symbol Description] 17 1296641