CN108203294A - 一种导电性能好的复合陶瓷及其制备方法 - Google Patents
一种导电性能好的复合陶瓷及其制备方法 Download PDFInfo
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Abstract
本发明公开了一种导电性能好的复合陶瓷及其制备方法,包括以下重量份的原料:氮化铝12‑16份、聚四氟乙烯8‑13份、铜粉3‑5份、植物淀粉2.5‑5份、氧化硼1.8‑3.5份、氧化钠1.5‑3.5份、二硫化钼4‑7份、粘土矿石32‑44份、石墨粉0.8‑2.4份、甘油2‑4份、二氧化锆10‑15份、碳纳米管0.8‑1.6份、聚丙烯晴纤维0.4‑0.8份、丙三醇8‑15份、邻苯二甲酸二丁酯3‑7份和爬山虎6‑8份。本发明在各种原料的协同作用和合适的制备工艺下,制备的成品不仅具有很低的电导率,还具有良好的力学性能,可以满足人们的使用需求,具有广阔的市场前景。
Description
技术领域
本发明涉及复合陶瓷领域,具体是一种导电性能好的复合陶瓷。
背景技术
用陶土烧制的器皿叫陶器,用瓷土烧制的器皿叫瓷器。陶瓷则是陶器、炻器和瓷器的总称,古人称陶瓷为瓯。凡是用陶土和瓷土这两种不同性质的粘土为原料,经过配料、成型、干燥、焙烧等工艺流程制成的器物都可以叫陶瓷。陶瓷的发展史是中华文明史的一个重要的组成部分,中国作为四大文明古国之一,为人类社会的进步和发展做出了卓越的贡献,其中陶瓷的发明和发展更具有独特的意义,中国历史上各朝各代的陶瓷都有着不同艺术风格和不同技术特点。
随着近代科学技术的发展,近百年来又出现了许多新的陶瓷品种,复合陶瓷就是常见的一种。复合陶瓷是以陶瓷为基体与陶瓷或者其他材料复合的一类复合材料,可以改进现有陶瓷的各种缺点,氮化铝复合陶瓷是一种常见的复合陶瓷,氮化铝复合陶瓷具有很好的抗氧化性、耐高温、耐腐蚀和较小的膨胀系数,但是氮化铝复合陶瓷的导电性能达不到人们的预期,这就为其在电子器件领域的应用带来了不便。
发明内容
本发明的目的在于提供一种导电性能好的复合陶瓷,以解决上述背景技术中提出的问题。
为实现上述目的,本发明提供如下技术方案:
一种导电性能好的复合陶瓷,包括以下重量份的原料:氮化铝12-16份、聚四氟乙烯8-13份、铜粉3-5份、植物淀粉2.5-5份、氧化硼1.8-3.5份、氧化钠1.5-3.5份、二硫化钼4-7份、粘土矿石32-44份、石墨粉0.8-2.4份、甘油2-4份、二氧化锆10-15份、碳纳米管0.8-1.6份、聚丙烯晴纤维0.4-0.8份、丙三醇8-15份、邻苯二甲酸二丁酯3-7份和爬山虎6-8份。
作为本发明进一步的方案:植物淀粉采用红薯淀粉、土豆淀粉、甘蔗淀粉和绿豆淀粉中的一种或者几种的混合物,粘土矿石采用膨润土、沸石、蒙脱石、硅藻土、海泡石和蛭石中的至少一种。
作为本发明进一步的方案:铜粉的粒度为0.06-0.24mm,石墨粉的粒度为1.16-2.47mm。
所述导电性能好的复合陶瓷的制备方法,具体步骤如下:
步骤一,将爬山虎破碎并且用6-8倍的水在60-70摄氏度下煎煮3-4次,每次90-120分钟,过滤并且合并每次的煎煮液,得到爬山虎煎煮液,将爬山虎煎煮液进行醇沉处理并且离心浓缩,再进行萃取并且回收溶剂,即可得到爬山虎提取物;
步骤二,将氮化铝、氧化硼、氧化钠、二硫化钼、石墨粉和二氧化锆采用无水乙醇为球磨介质球磨8-10小时然后加入总重量0.3-0.6倍的去离子水调制成浆体,向浆体中通入氮气并且在2.3-4.5Mpa下保压4-6小时,得到第一混合物;
步骤三,将铜粉、粘土矿石、聚丙烯晴纤维和邻苯二甲酸二丁酯进行干法球磨80-150分钟,得到第二混合物,向第二混合物中加入植物淀粉、甘油、碳纳米管和丙三醇并且继续球磨5-8小时,得到第三混合物;
步骤四,将聚四氟乙烯加热至熔融状态,得到熔融状态的聚四氟乙烯,备用;
步骤五,将第一混合物、第三混合物和熔融状态的聚四氟乙烯在高速搅拌机中搅拌均匀,得到坯料,将坯料在28-36Mpa的压力下压制成型,得到生坯,将生坯以6-10摄氏度/分钟的速度升温至820-880摄氏度并保持2-4小时,然后以12-15摄氏度/分钟的速度升温至1420-1480摄氏度并且保持3-4小时,然后降温至820-850摄氏度并且保温2-3小时,自然冷却即可得到成品。
作为本发明进一步的方案:步骤三中的球磨温度为40-55摄氏度。
与现有技术相比,本发明的有益效果是:本发明原料来源广泛,制备工艺简单,在各种原料的协同作用和合适的制备工艺下,制备的成品不仅具有很低的电导率,还具有良好的力学性能,可以满足人们的使用需求,具有广阔的市场前景。
具体实施方式
下面结合具体实施方式对本专利的技术方案作进一步详细地说明。
实施例1
一种导电性能好的复合陶瓷,包括以下重量份的原料:氮化铝12份、聚四氟乙烯8份、铜粉3份、植物淀粉2.5份、氧化硼1.8份、氧化钠1.5份、二硫化钼4份、粘土矿石32份、石墨粉0.8份、甘油2份、二氧化锆10份、碳纳米管0.8份、聚丙烯晴纤维0.4份、丙三醇8份、邻苯二甲酸二丁酯3份和爬山虎6份。植物淀粉采用红薯淀粉,粘土矿石采用膨润土、沸石和蛭石的混合物。
所述导电性能好的复合陶瓷的制备方法,具体步骤如下:
步骤一,将爬山虎破碎并且用8倍的水在64摄氏度下煎煮3次,每次90分钟,过滤并且合并每次的煎煮液,得到爬山虎煎煮液,将爬山虎煎煮液进行醇沉处理并且离心浓缩,再进行萃取并且回收溶剂,即可得到爬山虎提取物;
步骤二,将氮化铝、氧化硼、氧化钠、二硫化钼、石墨粉和二氧化锆采用无水乙醇为球磨介质球磨8小时然后加入总重量0.3倍的去离子水调制成浆体,向浆体中通入氮气并且在2.8Mpa下保压4小时,得到第一混合物;
步骤三,将铜粉、粘土矿石、聚丙烯晴纤维和邻苯二甲酸二丁酯进行干法球磨80分钟,得到第二混合物,向第二混合物中加入植物淀粉、甘油、碳纳米管和丙三醇并且继续球磨5小时,得到第三混合物;
步骤四,将聚四氟乙烯加热至熔融状态,得到熔融状态的聚四氟乙烯,备用;
步骤五,将第一混合物、第三混合物和熔融状态的聚四氟乙烯在高速搅拌机中搅拌均匀,得到坯料,将坯料在31Mpa的压力下压制成型,得到生坯,将生坯以8摄氏度/分钟的速度升温至850摄氏度并保持3小时,然后以14摄氏度/分钟的速度升温至1450摄氏度并且保持3小时,然后降温至820摄氏度并且保温3小时,自然冷却即可得到成品。
实施例2
一种导电性能好的复合陶瓷,包括以下重量份的原料:氮化铝15份、聚四氟乙烯11份、铜粉3.6份、植物淀粉4份、氧化硼2.4份、氧化钠2.8份、二硫化钼5份、粘土矿石37份、石墨粉1.5份、甘油3份、二氧化锆13份、碳纳米管1.2份、聚丙烯晴纤维0.6份、丙三醇13份、邻苯二甲酸二丁酯4.5份和爬山虎6.8份。铜粉的粒度为0.15mm,石墨粉的粒度为1.62mm。
所述导电性能好的复合陶瓷的制备方法,具体步骤如下:
步骤一,将爬山虎破碎并且用8倍的水在68摄氏度下煎煮3次,每次108分钟,过滤并且合并每次的煎煮液,得到爬山虎煎煮液,将爬山虎煎煮液进行醇沉处理并且离心浓缩,再进行萃取并且回收溶剂,即可得到爬山虎提取物;
步骤二,将氮化铝、氧化硼、氧化钠、二硫化钼、石墨粉和二氧化锆采用无水乙醇为球磨介质球磨9小时然后加入总重量0.5倍的去离子水调制成浆体,向浆体中通入氮气并且在3.6Mpa下保压5小时,得到第一混合物;
步骤三,将铜粉、粘土矿石、聚丙烯晴纤维和邻苯二甲酸二丁酯进行干法球磨135分钟,得到第二混合物,向第二混合物中加入植物淀粉、甘油、碳纳米管和丙三醇并且继续球磨6.8小时,得到第三混合物;
步骤四,将聚四氟乙烯加热至熔融状态,得到熔融状态的聚四氟乙烯,备用;
步骤五,将第一混合物、第三混合物和熔融状态的聚四氟乙烯在高速搅拌机中搅拌均匀,得到坯料,将坯料在33Mpa的压力下压制成型,得到生坯,将生坯以8摄氏度/分钟的速度升温至850摄氏度并保持3小时,然后以14摄氏度/分钟的速度升温至1450摄氏度并且保持3小时,然后降温至835摄氏度并且保温3小时,自然冷却即可得到成品。
实施例3
一种导电性能好的复合陶瓷,包括以下重量份的原料:氮化铝15份、聚四氟乙烯12.4份、铜粉4.5份、植物淀粉4.4份、氧化硼3.1份、氧化钠3份、二硫化钼6.5份、粘土矿石42份、石墨粉2.1份、甘油3.5份、二氧化锆14份、碳纳米管1.4份、聚丙烯晴纤维0.7份、丙三醇13份、邻苯二甲酸二丁酯6份和爬山虎7.2份。植物淀粉采用甘蔗淀粉和绿豆淀粉的混合物,粘土矿石采用膨润土、沸石、硅藻土和海泡石的混合物。
所述导电性能好的复合陶瓷的制备方法,具体步骤如下:
步骤一,将爬山虎破碎并且用6倍的水在66摄氏度下煎煮3次,每次115分钟,过滤并且合并每次的煎煮液,得到爬山虎煎煮液,将爬山虎煎煮液进行醇沉处理并且离心浓缩,再进行萃取并且回收溶剂,即可得到爬山虎提取物;
步骤二,将氮化铝、氧化硼、氧化钠、二硫化钼、石墨粉和二氧化锆采用无水乙醇为球磨介质球磨8小时然后加入总重量0.5倍的去离子水调制成浆体,向浆体中通入氮气并且在3.8Mpa下保压5.5小时,得到第一混合物;
步骤三,将铜粉、粘土矿石、聚丙烯晴纤维和邻苯二甲酸二丁酯在46摄氏度进行干法球磨90分钟,得到第二混合物,向第二混合物中加入植物淀粉、甘油、碳纳米管和丙三醇并且在52摄氏度下继续球磨6小时,得到第三混合物;
步骤四,将聚四氟乙烯加热至熔融状态,得到熔融状态的聚四氟乙烯,备用;
步骤五,将第一混合物、第三混合物和熔融状态的聚四氟乙烯在高速搅拌机中搅拌均匀,得到坯料,将坯料在33Mpa的压力下压制成型,得到生坯,将生坯以8摄氏度/分钟的速度升温至860摄氏度并保持3小时,然后以13摄氏度/分钟的速度升温至1470摄氏度并且保持4小时,然后降温至840摄氏度并且保温2.5小时,自然冷却即可得到成品。
实施例4
一种导电性能好的复合陶瓷,包括以下重量份的原料:氮化铝16份、聚四氟乙烯13份、铜粉5份、植物淀粉5份、氧化硼3.5份、氧化钠3.5份、二硫化钼7份、粘土矿石44份、石墨粉2.4份、甘油4份、二氧化锆15份、碳纳米管1.6份、聚丙烯晴纤维0.8份、丙三醇15份、邻苯二甲酸二丁酯7份和爬山虎8份。植物淀粉采用红薯淀粉、土豆淀粉、甘蔗淀粉和绿豆淀粉的混合物,粘土矿石采用膨润土、沸石、蒙脱石、硅藻土、海泡石和蛭石的混合物。铜粉的粒度为0.18mm,石墨粉的粒度为2.21mm。
所述导电性能好的复合陶瓷的制备方法,具体步骤如下:
步骤一,将爬山虎破碎并且用8倍的水在65摄氏度下煎煮4次,每次110分钟,过滤并且合并每次的煎煮液,得到爬山虎煎煮液,将爬山虎煎煮液进行醇沉处理并且离心浓缩,再进行萃取并且回收溶剂,即可得到爬山虎提取物;
步骤二,将氮化铝、氧化硼、氧化钠、二硫化钼、石墨粉和二氧化锆采用无水乙醇为球磨介质球磨10小时然后加入总重量0.5倍的去离子水调制成浆体,向浆体中通入氮气并且在4.3Mpa下保压5小时,得到第一混合物;
步骤三,将铜粉、粘土矿石、聚丙烯晴纤维和邻苯二甲酸二丁酯在50摄氏度进行干法球磨135分钟,得到第二混合物,向第二混合物中加入植物淀粉、甘油、碳纳米管和丙三醇并且在45摄氏度继续球磨7小时,得到第三混合物;
步骤四,将聚四氟乙烯加热至熔融状态,得到熔融状态的聚四氟乙烯,备用;
步骤五,将第一混合物、第三混合物和熔融状态的聚四氟乙烯在高速搅拌机中搅拌均匀,得到坯料,将坯料在34Mpa的压力下压制成型,得到生坯,将生坯以10摄氏度/分钟的速度升温至880摄氏度并保持4小时,然后以15摄氏度/分钟的速度升温至1460摄氏度并且保持3.5小时,然后降温至840摄氏度并且保温3小时,自然冷却即可得到成品。
对比例1
除不含有爬山虎,其余组分和制备方法均与实施例2相同。
对实施例1-4的产品和对比例1的产品在20摄氏度进行性能测试,测试结果见表1。
表1
电阻率/Ω·cm | 抗弯强度/MPa | 断裂韧性/MPa·m1/2 | |
实施例1 | 4.98×10-3 | 102.43 | 3.64 |
实施例2 | 4.62×10-3 | 125.87 | 3.87 |
实施例3 | 5.34×10-3 | 95.34 | 2.98 |
实施例4 | 4.47×10-3 | 106.73 | 3.25 |
对比例1 | 8.28×10-3 | 84.96 | 2.17 |
现有产品 | 1.02×10-2 | 73.37 | 1.84 |
从表1中可以看出实施例1-4的产品在常温电导率、抗弯强度和断裂韧性上均优于对比例1的产品,对比例1的产品在常温电导率、抗弯强度和断裂韧性上均优于现有产品,表明本发明的产品可以满足人们的使用需求。
对于本领域技术人员而言,显然本发明不限于上述示范性实施例的细节,而且在不背离本发明的精神或基本特征的情况下,能够以其他的具体形式实现本发明。因此,无论从哪一点来看,均应将实施例看作是示范性的,而且是非限制性的,本发明的范围由所附权利要求而不是上述说明限定,因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本发明内。
此外,应当理解,虽然本说明书按照实施方式加以描述,但并非每个实施方式仅包含一个独立的技术方案,说明书的这种叙述方式仅仅是为清楚起见,本领域技术人员应当将说明书作为一个整体,各实施例中的技术方案也可以经适当组合,形成本领域技术人员可以理解的其他实施方式。
Claims (5)
1.一种导电性能好的复合陶瓷,其特征在于,包括以下重量份的原料:氮化铝12-16份、聚四氟乙烯8-13份、铜粉3-5份、植物淀粉2.5-5份、氧化硼1.8-3.5份、氧化钠1.5-3.5份、二硫化钼4-7份、粘土矿石32-44份、石墨粉0.8-2.4份、甘油2-4份、二氧化锆10-15份、碳纳米管0.8-1.6份、聚丙烯晴纤维0.4-0.8份、丙三醇8-15份、邻苯二甲酸二丁酯3-7份和爬山虎6-8份。
2.根据权利要求1所述的导电性能好的复合陶瓷,其特征在于,所述植物淀粉采用红薯淀粉、土豆淀粉、甘蔗淀粉和绿豆淀粉中的一种或者几种的混合物,粘土矿石采用膨润土、沸石、蒙脱石、硅藻土、海泡石和蛭石中的至少一种。
3.根据权利要求1所述的导电性能好的复合陶瓷,其特征在于,所述铜粉的粒度为0.06-0.24mm,石墨粉的粒度为1.16-2.47mm。
4.一种如权利要求1-3任一所述的导电性能好的复合陶瓷的制备方法,其特征在于,具体步骤如下:
步骤一,将爬山虎破碎并且用6-8倍的水在60-70摄氏度下煎煮3-4次,每次90-120分钟,过滤并且合并每次的煎煮液,得到爬山虎煎煮液,将爬山虎煎煮液进行醇沉处理并且离心浓缩,再进行萃取并且回收溶剂,即可得到爬山虎提取物;
步骤二,将氮化铝、氧化硼、氧化钠、二硫化钼、石墨粉和二氧化锆采用无水乙醇为球磨介质球磨8-10小时然后加入总重量0.3-0.6倍的去离子水调制成浆体,向浆体中通入氮气并且在2.3-4.5Mpa下保压4-6小时,得到第一混合物;
步骤三,将铜粉、粘土矿石、聚丙烯晴纤维和邻苯二甲酸二丁酯进行干法球磨80-150分钟,得到第二混合物,向第二混合物中加入植物淀粉、甘油、碳纳米管和丙三醇并且继续球磨5-8小时,得到第三混合物;
步骤四,将聚四氟乙烯加热至熔融状态,得到熔融状态的聚四氟乙烯,备用;
步骤五,将第一混合物、第三混合物和熔融状态的聚四氟乙烯在高速搅拌机中搅拌均匀,得到坯料,将坯料在28-36Mpa的压力下压制成型,得到生坯,将生坯以6-10摄氏度/分钟的速度升温至820-880摄氏度并保持2-4小时,然后以12-15摄氏度/分钟的速度升温至1420-1480摄氏度并且保持3-4小时,然后降温至820-850摄氏度并且保温2-3小时,自然冷却即可得到成品。
5.根据权利要求4所述的导电性能好的复合陶瓷的制备方法,其特征在于,所述步骤三中的球磨温度为40-55摄氏度。
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