TWI385216B - Surface-modifying method for carbon black - Google Patents
Surface-modifying method for carbon black Download PDFInfo
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Description
本發明係關於一種碳黑表面修飾方法；特別是關於先進行碳黑鹼處理、後進行碳黑酸處理之碳黑表面修飾方法；更特別是關於在碳黑鹼處理及碳黑酸處理結合超音波震盪處理之碳黑表面修飾方法。The invention relates to a carbon black surface modification method; in particular, to a carbon black surface modification method which first performs a carbon black alkali treatment and then a carbon black acid treatment; more particularly, relates to a carbon black alkali treatment and a carbon black acid treatment combined with super Carbon black surface modification method for sonic vibration treatment.
一般而言，將廢輪胎經過熱裂解之後，其主要產物為可燃氣體[combustible gas]、熱裂解油[pyrolysis oil]及碳黑[carbon black]；其中碳黑具有良好的補強性、耐磨耗性、耐候性及導電性。目前碳黑主要使用於輪胎製造、工業產品及其他特殊用途。Generally, after the waste tire is subjected to thermal cracking, the main products are combustible gas, pyrolysis oil and carbon black; wherein the carbon black has good reinforcement and wear resistance. Properties, weather resistance and electrical conductivity. Carbon black is currently used primarily in tire manufacturing, industrial products and other special applications.
在碳黑回收再利用上，將回收碳黑以各種過當技術手段進行純化處理[purification treatment]，以減少其灰分[ash]含量，並提高其含碳量。碳黑可依其化學成分、油墨性質、吸附活性及膠體性質的不同，可應用於電導強化劑、乾電池電極、塑膠抗劣化添加劑、印刷油墨及污染物吸附劑等。In the recycling of carbon black, the carbon black is recovered by various purification techniques to reduce its ash content and increase its carbon content. Carbon black can be applied to conductivity enhancers, dry battery electrodes, plastic anti-deterioration additives, printing inks and pollutant adsorbents depending on its chemical composition, ink properties, adsorption activity and colloidal properties.
學者A.Chaala、學者H.Darmstadt及學者C.Roy等共同發表期刊文章〝Acid-base method for the demineralization of pyrolytic carbon black〞揭示先利用碳黑酸處理、再利用碳黑鹼處理方式純化碳黑。前述處理方式之純化效率係可將碳黑之灰分含量百分比由14.6%降至3%。然而，對於前述處理方式仍具有改善其純化效率的需求。The scholars A. Chaala, the scholar H. Darmstadt, and the scholar C. Roy, etc. jointly published the journal article 〝Acid-base method for the demineralization of pyrolytic carbon black〞, which revealed that the carbon black was first treated with carbon black acid and then treated with carbon black alkali. . The purification efficiency of the foregoing treatment method can reduce the percentage of ash content of carbon black from 14.6% to 3%. However, there is still a need to improve the purification efficiency of the aforementioned treatment.
目前各種有關碳黑表面修飾方法已揭示於許多國內專利內容。舉例而言，中華民國專利公告第494121號「掺有經矽處理之碳黑的彈性體化合物」之發明專利，其揭示經由矽處理之碳黑，該方法形成的掺碳黑彈性體化合物具有較佳的耐磨性。Various methods for surface modification of carbon black have been disclosed in many domestic patents. For example, the invention patent of the Republic of China Patent Publication No. 494121, "An elastomer compound doped with a ruthenium-treated carbon black", discloses a carbon black-containing elastomer compound formed by the process, which is formed by a ruthenium-treated carbon black. Good wear resistance.
另外，中華民國專利公告第593574號「經表面修飾之碳黑」之發明專利，其揭示將碳黑與一亞硫醯鹵化物進行反應，而在碳黑表面產生鹵化酸基，使經表面處理之碳黑可在墨水合成物的有機成分中均勻分散且不易結塊。In addition, the invention patent of "surface-modified carbon black" of the Republic of China Patent Publication No. 593574 discloses that carbon black is reacted with a sulfinium halide to produce a halogenated acid group on the surface of the carbon black to be surface-treated. The carbon black is uniformly dispersed in the organic component of the ink composition and is not easily agglomerated.
另外，中華民國專利公開第200726817號「經苯化合物表面改質之碳黑以及用於黑色矩陣之使用該碳黑的碳黑分散組成物」之發明專利，其揭示經由苯化合物表面改質之碳黑，可改善黑色矩陣圖案之黏著性、均勻性及解析度。In addition, the invention patent of the Republic of China Patent Publication No. 200726817, "Carbon black modified by surface modification of a benzene compound, and a carbon black dispersion composition using the carbon black for a black matrix", discloses carbon modified by surface modification of a benzene compound. Black, which improves the adhesion, uniformity and resolution of the black matrix pattern.
然而，該第494121號、第593574號及第200726817號之處理方法主要係增加碳黑之分散性，其並非用以提高碳黑純化效率。However, the treatment methods of No. 494121, No. 593574 and No. 200726817 mainly increase the dispersibility of carbon black, which is not used to improve the purification efficiency of carbon black.
另外，就碳黑純化效率而言，中華民國專利公開第200727390號「高純度廢輪胎回收碳黑之製備方法」之發明專利，其揭示將廢輪胎回收碳黑以非極性溶劑處理、極性溶劑處理和酸或鹼反應處理；其可將廢輪胎回收碳黑中含灰量從10%-15%降至1%以下，作為補強性碳黑及導電碳之原料。事實上，該方法需先進行溶劑處理碳黑，因而具有增加處理成本的問題。In addition, in terms of the purification efficiency of carbon black, the invention patent of "Recommended Method for Producing High-purity Waste Tire Recovery Carbon Black" of the Republic of China Patent Publication No. 200727390 discloses that the waste tire recovered carbon black is treated with a non-polar solvent and treated with a polar solvent. It is treated with an acid or a base; it can reduce the ash content in the waste tire recovery carbon black from 10% to 15% to less than 1%, and is used as a raw material for reinforcing carbon black and conductive carbon. In fact, this method requires solvent treatment of carbon black first, thus having the problem of increasing the processing cost.
然而，對於前述諸處理方式仍具有改善其純化效率的需求。前述我國專利僅為本發明技術背景之參考及說明目前技術發展狀態而已，其並非用以限制本發明之範圍。However, there is still a need to improve the purification efficiency of the aforementioned treatment methods. The foregoing Chinese patents are only for the purpose of reference to the technical background of the present invention and the present state of the art is not intended to limit the scope of the present invention.
有關碳黑表面修飾方法亦已揭示於許多美國專利內容。舉例而言，美國專利第6,780,389號“process for the production of modified carbon black”發明專利，其揭示處理碳黑方法包含步驟：1、碳黑、水及濕潤劑[wetting agent]之分散物[dispersion]及酸化水性溶液[acidified aqueous solution]或氨[primary amine]之懸浮物[suspension]之混合步驟；2、亞硝酸鈉溶液處理步驟。然而，該處理碳黑方法係需將碳黑、水及濕潤劑之分散物及酸化水性溶液或氨之懸浮物之混合步驟，因而其具有純化製程複雜的問題。再者，該處理碳黑方法係適用於氣黑[gas black]。前述美國專利僅為本發明技術背景之參考及說明目前技術發展狀態而已，其並非用以限制本發明之範圍。Methods for surface modification of carbon black have also been disclosed in many U.S. patents. For example, U.S. Patent No. 6,780,389, "Process for the production of modified carbon black", discloses a process for treating carbon black comprising the steps of: 1. Dispersion of carbon black, water and wetting agent [dispersion] And a mixing step of an acidified aqueous solution or a suspension of ammonia (suspension); and a step of treating the sodium nitrite solution. However, the method of treating carbon black requires a mixing step of carbon black, a dispersion of water and a wetting agent, and an aqueous solution of acid or a suspension of ammonia, and thus has a problem that the purification process is complicated. Furthermore, the method of treating carbon black is applicable to gas black. The foregoing U.S. patents are merely for the purpose of the present invention and are not intended to limit the scope of the present invention.
有鑑於此，本發明為了滿足上述需求，其提供一種碳黑表面修飾方法，其利用先進行碳黑鹼處理、後進行碳黑酸處理，以達成提高碳黑純化效率之目的。In view of the above, in order to meet the above needs, the present invention provides a carbon black surface modification method which utilizes a carbon black base treatment followed by a carbon black acid treatment to achieve the purpose of improving carbon black purification efficiency.
本發明之主要目的係提供一種碳黑表面修飾方法，其先進行碳黑鹼處理，再進行碳黑酸處理，以達成提高碳黑純化效率之目的。The main object of the present invention is to provide a method for modifying the surface of carbon black, which is first treated with carbon black base and then treated with carbon black acid to achieve the purpose of improving the purification efficiency of carbon black.
本發明之另一目的係提供一種碳黑表面修飾方法，其在進行碳黑鹼處理及碳黑酸處理後，進行超音波震盪處理，以達成提高碳黑純化效率之目的。Another object of the present invention is to provide a carbon black surface modification method which performs ultrasonic shock treatment after carbon black alkali treatment and carbon black acid treatment to achieve the purpose of improving carbon black purification efficiency.
為了達成上述目的，本發明較佳實施例之碳黑表面修飾方法包含步驟：In order to achieve the above object, a carbon black surface modification method according to a preferred embodiment of the present invention comprises the steps of:
碳黑鹼處理步驟；及碳黑酸處理步驟。a carbon black base treatment step; and a carbon black acid treatment step.
本發明另一較佳實施例之碳黑表面修飾方法包含步驟：A carbon black surface modification method according to another preferred embodiment of the present invention comprises the steps of:
碳黑鹼處理步驟；Carbon black base treatment step;
碳黑第一中和處理步驟；Carbon black first neutralization treatment step;
碳黑酸處理步驟；及a carbon black acid treatment step;
碳黑第二中和處理步驟。Carbon black second neutralization treatment step.
本發明另一較佳實施例之碳黑表面修飾方法包含步驟：A carbon black surface modification method according to another preferred embodiment of the present invention comprises the steps of:
碳黑鹼處理步驟；Carbon black base treatment step;
碳黑第一超音波震盪處理步驟；Carbon black first ultrasonic oscillation processing step;
碳黑酸處理步驟；及a carbon black acid treatment step;
碳黑第二超音波震盪處理步驟。Carbon black second ultrasonic oscillation processing step.
本發明較佳實施例另包含加熱攪拌處理步驟。The preferred embodiment of the invention further comprises a heating and agitating treatment step.
本發明較佳實施例另包含烘乾處理步驟。The preferred embodiment of the invention further comprises a drying process step.
本發明較佳實施例之該鹼選自氫氧化鈉。In a preferred embodiment of the invention the base is selected from the group consisting of sodium hydroxide.
本發明較佳實施例之該酸選自硝酸或硫酸。The acid of the preferred embodiment of the invention is selected from the group consisting of nitric acid or sulfuric acid.
為了充分瞭解本發明，於下文將例舉較佳實施例並配合所附圖式作詳細說明，且其並非用以限定本發明。In order to fully understand the present invention, the preferred embodiments of the present invention are described in detail below and are not intended to limit the invention.
本發明較佳實施例之碳黑表面修飾方法係自灰分含量高的廢輪胎純化碳黑，該碳黑可應用於各種工業用途，例如：其包含應用於電導強化劑、乾電池電極、塑膠抗劣化添加劑、碳粉、墨水、印刷油墨、活性碳及污染物吸附劑，但其並非用以限定本發明碳黑表面修飾方法之應用範圍。The carbon black surface modification method of the preferred embodiment of the present invention purifies carbon black from waste tires with high ash content, and the carbon black can be applied to various industrial applications, for example, it is applied to a conductivity enhancer, a dry battery electrode, and a plastic anti-degradation. Additives, carbon powder, ink, printing ink, activated carbon and pollutant adsorbent, but it is not intended to limit the application range of the carbon black surface modification method of the present invention.
本發明較佳實施例之碳黑表面修飾方法包含碳黑鹼處理步驟及碳黑酸處理步驟，即先進行碳黑鹼純化處理、後進行碳黑酸純化處理。本發明較佳實施例之碳黑表面修飾方法達成將碳黑之灰分百分比降至2%以下，但其並非用以限定本發明碳黑表面修飾方法之應用範圍The carbon black surface modification method according to the preferred embodiment of the present invention comprises a carbon black base treatment step and a carbon black acid treatment step, that is, the carbon black base purification treatment is performed first, followed by the carbon black acid purification treatment. The carbon black surface modification method of the preferred embodiment of the present invention achieves a reduction of the ash percentage of carbon black to less than 2%, but it is not intended to limit the application range of the carbon black surface modification method of the present invention.
承上，請參照第1圖所示，本發明第一較佳實施例之碳黑表面修飾方法包含：碳黑鹼處理步驟；碳黑第一中和處理步驟；碳黑酸處理步驟；及碳黑第二中和處理步驟。As shown in FIG. 1, the carbon black surface modification method of the first preferred embodiment of the present invention comprises: a carbon black base treatment step; a carbon black first neutralization treatment step; a carbon black acid treatment step; and carbon Black second neutralization process step.
請再參照第1圖所示，本發明第一較佳實施例之碳黑表面修飾方法之第一步驟係碳黑鹼處理步驟，其中該鹼係選自氫氧化鈉[NaOH]。將碳黑碎塊以10號篩子篩選，再將2g之碳黑碎塊加入容量20mL之濃度7M之氫氧化鈉。本發明較佳實施例之碳黑表面修飾方法另包含加熱攪拌處理步驟，其較佳溫度為60℃，其加熱時間為1小時，並獲得碳黑溶液，且利用濾紙過濾該碳黑溶液。Referring to FIG. 1 again, the first step of the carbon black surface modification method of the first preferred embodiment of the present invention is a carbon black base treatment step, wherein the base is selected from sodium hydroxide [NaOH]. The carbon black pieces were sieved through a No. 10 sieve, and 2 g of the carbon black pieces were added to a capacity of 20 mL of 7 M sodium hydroxide. The carbon black surface modification method of the preferred embodiment of the present invention further comprises a heating and agitating treatment step, preferably at a temperature of 60 ° C, a heating time of 1 hour, and obtaining a carbon black solution, and filtering the carbon black solution with a filter paper.
請再參照第1圖所示，本發明第一較佳實施例之碳黑表面修飾方法之第二步驟係碳黑第一中和處理步驟，其較佳利用加入大量離子水至碳黑溶液，以便形成中性溶液。本發明較佳實施例之碳黑表面修飾方法另包含烘乾處理步驟，以獲得第一次[初步]純化碳黑，此時其灰分百分比尚未降至2%以下。Referring to FIG. 1 again, the second step of the carbon black surface modification method of the first preferred embodiment of the present invention is a carbon black first neutralization treatment step, which preferably utilizes adding a large amount of ionized water to the carbon black solution. In order to form a neutral solution. The carbon black surface modification method of the preferred embodiment of the present invention further comprises a drying treatment step to obtain the first [preliminary] purification of carbon black, at which time the ash percentage has not fallen below 2%.
請再參照第1圖所示，本發明第一較佳實施例之碳黑表面修飾方法之第三步驟係碳黑酸處理步驟，其中該酸係選自硝酸[HNO3 ]或硫酸[H2 SO4 ]。將第一次純化碳黑加入容量20mL之濃度1M之硝酸或硫酸。本發明較佳實施例之碳黑表面修飾方法另包含加熱攪拌處理步驟，其較佳溫度為60℃，其加熱時間為1小時，並獲得碳黑溶液，且利用濾紙過濾該碳黑溶液。Referring to FIG. 1 again, the third step of the carbon black surface modification method of the first preferred embodiment of the present invention is a carbon black acid treatment step, wherein the acid is selected from the group consisting of nitric acid [HNO 3 ] or sulfuric acid [H 2 SO 4 ]. The first purified carbon black was added to a volume of 20 mL of 1 M nitric acid or sulfuric acid. The carbon black surface modification method of the preferred embodiment of the present invention further comprises a heating and agitating treatment step, preferably at a temperature of 60 ° C, a heating time of 1 hour, and obtaining a carbon black solution, and filtering the carbon black solution with a filter paper.
請再參照第1圖所示，本發明第一較佳實施例之碳黑表面修飾方法之第四步驟係碳黑第二中和處理步驟，其較佳利用加入大量離子水至碳黑溶液，以便形成中性溶液。本發明較佳實施例之碳黑表面修飾方法另包含烘乾處理步驟，以獲得第二次[最後]純化碳黑，即碳黑純化品，此時其灰分百分比降至2%以下。Referring to FIG. 1 again, the fourth step of the carbon black surface modification method of the first preferred embodiment of the present invention is a carbon black second neutralization treatment step, which preferably uses a large amount of ionized water to the carbon black solution. In order to form a neutral solution. The carbon black surface modification method of the preferred embodiment of the present invention further comprises a drying treatment step to obtain a second [final] purified carbon black, that is, a carbon black purified product, at which time the ash percentage is reduced to less than 2%.
請參照第2圖所示，本發明第二較佳實施例之碳黑表面修飾方法包含：碳黑鹼處理步驟；碳黑第一超音波震盪處理步驟；碳黑酸處理步驟；及碳黑第二超音波震盪處理步驟。Referring to FIG. 2, a carbon black surface modification method according to a second preferred embodiment of the present invention includes: a carbon black base treatment step; a carbon black first ultrasonic oscillation treatment step; a carbon black acid treatment step; and a carbon black first Two ultrasonic oscillation processing steps.
請再參照第2圖所示，本發明第二較佳實施例之碳黑表面修飾方法之第一步驟係碳黑鹼處理步驟，其中該鹼係選自選自氫氧化鈉[NaOH]。將碳黑碎塊以10號篩子篩選，再將2g之碳黑碎塊加入容量20mL之濃度7M之氫氧化鈉。本發明較佳實施例之碳黑表面修飾方法另包含加熱攪拌處理步驟，其較佳溫度為60℃，其加熱時間為1小時，並獲得碳黑溶液，且利用濾紙過濾該碳黑溶液。Referring to FIG. 2 again, the first step of the carbon black surface modification method of the second preferred embodiment of the present invention is a carbon black base treatment step, wherein the base is selected from the group consisting of sodium hydroxide [NaOH]. The carbon black pieces were sieved through a No. 10 sieve, and 2 g of the carbon black pieces were added to a capacity of 20 mL of 7 M sodium hydroxide. The carbon black surface modification method of the preferred embodiment of the present invention further comprises a heating and agitating treatment step, preferably at a temperature of 60 ° C, a heating time of 1 hour, and obtaining a carbon black solution, and filtering the carbon black solution with a filter paper.
請再參照第2圖所示，本發明第二較佳實施例之碳黑表面修飾方法之第二步驟係碳黑第一超音波震盪處理步驟，其較佳將碳黑容以超音波震盪30分鐘。本發明較佳實施例之碳黑表面修飾方法另包含中和處理步驟及烘乾處理步驟，以獲得第一次[初步]純化碳黑。Referring to FIG. 2 again, the second step of the carbon black surface modification method according to the second preferred embodiment of the present invention is a carbon black first ultrasonic oscillation processing step, which preferably embosses the carbon black with ultrasonic waves. minute. The carbon black surface modification method of the preferred embodiment of the present invention further comprises a neutralization treatment step and a drying treatment step to obtain a first [preliminary] purification of carbon black.
請再參照第2圖所示，本發明第二較佳實施例之碳黑表面修飾方法之第三步驟係碳黑酸處理步驟，其中該酸係選自選自硝酸[HNO3 ]或硫酸[H2 SO4 ]。將第一次純化碳黑加入容量20mL之濃度1M之硝酸或硫酸。本發明較佳實施例之碳黑表面修飾方法另包含加熱攪拌處理步驟，其較佳溫度為60℃，其加熱時間為1小時，並獲得碳黑溶液，且利用濾紙過濾該碳黑溶液。Referring to FIG. 2 again, the third step of the carbon black surface modification method according to the second preferred embodiment of the present invention is a carbon black acid treatment step, wherein the acid is selected from the group consisting of nitric acid [HNO 3 ] or sulfuric acid [H 2 SO 4 ]. The first purified carbon black was added to a volume of 20 mL of 1 M nitric acid or sulfuric acid. The carbon black surface modification method of the preferred embodiment of the present invention further comprises a heating and agitating treatment step, preferably at a temperature of 60 ° C, a heating time of 1 hour, and obtaining a carbon black solution, and filtering the carbon black solution with a filter paper.
請再參照第2圖所示，本發明第一較佳實施例之碳黑表面修飾方法之第四步驟係碳黑第二超音波震盪處理步驟，其較佳將碳黑容以超音波震盪30分鐘。本發明較佳實施例之碳黑表面修飾方法另包含中和處理步驟及烘乾處理步驟，以獲得第二次[最後]純化碳黑，即碳黑純化品，此時其灰分百分比降至2%以下。Referring to FIG. 2 again, the fourth step of the carbon black surface modification method of the first preferred embodiment of the present invention is a carbon black second ultrasonic oscillation processing step, which preferably embosses the carbon black with ultrasonic waves. minute. The carbon black surface modification method of the preferred embodiment of the present invention further comprises a neutralization treatment step and a drying treatment step to obtain a second [final] purified carbon black, that is, a carbon black purified product, at which time the ash percentage is reduced to 2 %the following.
請參照第3圖所示，本發明第二較佳實施例之碳黑表面修飾方法包含：碳黑鹼處理步驟；碳黑第一超音波震盪處理步驟；碳黑第一中和處理步驟；碳黑酸處理步驟；碳黑第二超音波震盪處理步驟；及碳黑第二中和處理步驟。Referring to FIG. 3, a carbon black surface modification method according to a second preferred embodiment of the present invention includes: a carbon black base treatment step; a carbon black first ultrasonic vibration treatment step; a carbon black first neutralization treatment step; carbon a black acid treatment step; a carbon black second ultrasonic oscillation treatment step; and a carbon black second neutralization treatment step.
請再參照第3圖所示，本發明第二較佳實施例之碳黑表面修飾方法之第一步驟係碳黑鹼處理步驟，其中該鹼係選自選自氫氧化鈉[NaOH]。將碳黑碎塊以10號篩子篩選，再將2g之碳黑碎塊加入容量20mL之濃度7M之氫氧化鈉。本發明較佳實施例之碳黑表面修飾方法另包含加熱攪拌處理步驟，其較佳溫度為60℃，其加熱時間為1小時，並獲得碳黑溶液，且利用濾紙過濾該碳黑溶液。Referring to FIG. 3 again, the first step of the carbon black surface modification method of the second preferred embodiment of the present invention is a carbon black base treatment step, wherein the base is selected from the group consisting of sodium hydroxide [NaOH]. The carbon black pieces were sieved through a No. 10 sieve, and 2 g of the carbon black pieces were added to a capacity of 20 mL of 7 M sodium hydroxide. The carbon black surface modification method of the preferred embodiment of the present invention further comprises a heating and agitating treatment step, preferably at a temperature of 60 ° C, a heating time of 1 hour, and obtaining a carbon black solution, and filtering the carbon black solution with a filter paper.
請再參照第3圖所示，本發明第二較佳實施例之碳黑表面修飾方法之第二步驟係碳黑第一超音波震盪處理步驟，其較佳將碳黑容以超音波震盪30分鐘。Referring to FIG. 3 again, the second step of the carbon black surface modification method according to the second preferred embodiment of the present invention is a carbon black first ultrasonic oscillation processing step, which preferably embosses the carbon black with ultrasonic waves. minute.
請再參照第3圖所示，本發明第二較佳實施例之碳黑表面修飾方法之第三步驟係碳黑第一中和處理步驟，其較佳利用加入大量離子水至碳黑溶液，以便形成中性溶液。本發明較佳實施例之碳黑表面修飾方法另包含烘乾處理步驟，以獲得第一次[初步]純化碳黑，此時其灰分百分比尚未降至2%以下。Referring to FIG. 3 again, the third step of the carbon black surface modification method of the second preferred embodiment of the present invention is a carbon black first neutralization treatment step, which preferably uses a large amount of ionized water to the carbon black solution. In order to form a neutral solution. The carbon black surface modification method of the preferred embodiment of the present invention further comprises a drying treatment step to obtain the first [preliminary] purification of carbon black, at which time the ash percentage has not fallen below 2%.
請再參照第3圖所示，本發明第二較佳實施例之碳黑表面修飾方法之第四步驟係碳黑酸處理步驟，其中該酸係選自選自硝酸[HNO3 ]或硫酸[H2 SO4 ]。將第一次純化碳黑加入容量20mL之濃度1M之硝酸或硫酸。本發明較佳實施例之碳黑表面修飾方法另包含加熱攪拌處理步驟，其較佳溫度為60℃，其加熱時間為1小時，並獲得碳黑溶液，且利用濾紙過濾該碳黑溶液。Referring to FIG. 3 again, the fourth step of the carbon black surface modification method according to the second preferred embodiment of the present invention is a carbon black acid treatment step, wherein the acid is selected from the group consisting of nitric acid [HNO 3 ] or sulfuric acid [H] 2 SO 4 ]. The first purified carbon black was added to a volume of 20 mL of 1 M nitric acid or sulfuric acid. The carbon black surface modification method of the preferred embodiment of the present invention further comprises a heating and agitating treatment step, preferably at a temperature of 60 ° C, a heating time of 1 hour, and obtaining a carbon black solution, and filtering the carbon black solution with a filter paper.
請再參照第3圖所示，本發明第三較佳實施例之碳黑表面修飾方法之第五步驟係碳黑第二超音波震盪處理步驟，其較佳將碳黑容以超音波震盪30分鐘。Referring to FIG. 3 again, the fifth step of the carbon black surface modification method according to the third preferred embodiment of the present invention is a carbon black second ultrasonic oscillation processing step, which preferably embosses the carbon black with ultrasonic waves. minute.
請再參照第3圖所示，本發明第三較佳實施例之碳黑表面修飾方法之第六步驟係碳黑第二中和處理步驟，其較佳利用加入大量離子水至碳黑溶液，以便形成中性溶液。本發明較佳實施例之碳黑表面修飾方法另包含烘乾處理步驟，以獲得第二次[最後]純化碳黑，即碳黑純化品，此時其灰分百分比降至2%以下。Referring to FIG. 3 again, the sixth step of the carbon black surface modification method according to the third preferred embodiment of the present invention is a carbon black second neutralization treatment step, which preferably uses a large amount of ionized water to the carbon black solution. In order to form a neutral solution. The carbon black surface modification method of the preferred embodiment of the present invention further comprises a drying treatment step to obtain a second [final] purified carbon black, that is, a carbon black purified product, at which time the ash percentage is reduced to less than 2%.
前述較佳實施例僅舉例說明本發明及其技術特徵，該實施例之技術仍可適當進行各種實質等效修飾及/或替換方式予以實施；因此，本發明之權利範圍須視後附申請專利範圍所界定之範圍為準。The foregoing preferred embodiments are merely illustrative of the invention and the technical features thereof, and the techniques of the embodiments can be carried out with various substantial equivalent modifications and/or alternatives; therefore, the scope of the invention is subject to the appended claims. The scope defined by the scope shall prevail.
[無元件符號][No component symbol]
第1圖：本發明第一較佳實施例之碳黑表面修飾方法執行步驟之方塊示意圖。Fig. 1 is a block diagram showing the steps of performing the carbon black surface modification method of the first preferred embodiment of the present invention.
第2圖：本發明第二較佳實施例之碳黑表面修飾方法執行步驟之方塊示意圖。Fig. 2 is a block diagram showing the steps of performing the carbon black surface modification method of the second preferred embodiment of the present invention.
第3圖：本發明第三較佳實施例之碳黑表面修飾方法執行步驟之方塊示意圖。Fig. 3 is a block diagram showing the steps of performing the carbon black surface modification method of the third preferred embodiment of the present invention.
[無元件符號][No component symbol]
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