CN106587955A - 一种陶瓷喷涂料、制备方法及使用方法 - Google Patents
一种陶瓷喷涂料、制备方法及使用方法 Download PDFInfo
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Abstract
本发明提供一种陶瓷喷涂料,包括下述组成材料:60‑80重量份的陶瓷粉体,10‑30重量份的粘接剂,1‑2重量份的固化剂,2‑8重量份的填料,1‑2重量份的稀释剂,其中:所述陶瓷粉体的粒径为1‑5um,所述陶瓷粉体为氧化物陶瓷粉体、氮化物陶瓷粉体、硼化物陶瓷粉体或碳化物陶瓷粉体。本发明利用高压静电喷涂法,将复合陶瓷材料通过静电方式涂覆在待喷涂物件上。本发明不仅可以在平面基板上进行涂覆,亦可以对复杂立体物件进行表面涂覆,具有很强的适用性。所得产品具有陶瓷优良的物理、化学、机械性能。
Description
技术领域
本发明属于复合陶瓷涂料技术领域,具体涉及一种陶瓷喷涂料、制备方法及使用方法。
背景技术
复合陶瓷材料是由陶瓷与其它金属或非金属材料组成,其不仅具有金属或非金属的相关特性,还具有陶瓷材料优异的物理、化学、机械等方面的性能。
传统陶瓷是通过压模成型后进行高温锻烧成型,这种方法制约了陶瓷材料的应用。复合陶瓷的出现改变了这一现状,不仅不需要高压压模成型,而且烧结温度也大大降低,是一种新型的节能型的材料。复合陶瓷材料一般是由陶瓷粉体,粘接剂、固化剂及其他助剂组成,其形态可以是液态,也可以是固体粉末。
复合陶瓷材料已广泛应用于各个领域。对LED产业领域来说,复合陶瓷的使用,更多地在于增加基板的散热性能。不同的复合陶瓷,对基板的散热性能及其它物理、化学和机械等方面的性能具有不同的效果。新的复合陶瓷材料的制备及在LED领域的使用,还有待进一步开发。
发明内容
本发明的目的,在于提供一种陶瓷喷涂料、制备方法和使用方法,利用高压静电喷涂法,将复合陶瓷材料通过静电方式涂覆在待喷涂物件上。本发明不仅可以在平面基板上进行涂覆,亦可以对复杂立体物件进行表面涂覆,具有很强的适用性。所得产品具有陶瓷优良的物理、化学、机械性能。
本发明是这样实现的:
一种陶瓷喷涂料,包括下述组成材料:
60-80重量份的陶瓷粉体,
10-30重量份的粘接剂,
1-2重量份的固化剂,
2-8重量份的填料,
1-2重量份的稀释剂,
其中:
所述陶瓷粉体的粒径为1-5um,
所述陶瓷粉体为氧化物陶瓷粉体、氮化物陶瓷粉体、硼化物陶瓷粉体或碳化物陶瓷粉体。
优选地,所述氧化物陶瓷粉体为Al2O3、ZrO2、BeO、MgO和TiO2中的一种或几种,
所述氮化物陶瓷粉体为AlN、BN、Si3N4和ZrN中的一种或几种,
所述硼化物陶瓷粉体为ZrB2和TiB2中的一种或两种,
所述碳化物陶瓷粉体为B4C、SiC、ZrC、TiC和WC中的一种或几种。
优选地,所述粘接剂为热固型环氧树脂或改性热固型环氧树脂。
优选地,所述固化剂为胺类、苯胺类、酸酐类、过氧化物类和咪唑类中的一种或几种。
优选地,所述填料为滑石粉、金刚石粉、锻烧高岭土、长钾石粉和钛白粉中的一种或几种。
优选地,所述稀释剂可以是常用醇类、酯类、烷烃类、醚类和酮类中的一种或几种。
根据本发明的另一方面,一种制备上述的陶瓷喷涂料的方法,称取陶瓷粉体,加入粘接剂、固化剂、填料以及稀释剂,放入超声高速形星搅拌机于300-400rpm下高速超声搅拌4-6时,制得陶瓷喷涂料。
根据本发明的再一方面,一种使用上述的陶瓷喷涂料的方法,包括以下步骤:
S1:装料:将陶瓷喷涂料装入桶中,并将静电喷涂机的进料管与桶相连并伸入陶瓷喷涂料中;
S2:喷涂:将待喷涂物件悬挂并接地,静电喷涂电压为50-80kv,喷涂气压0.5-0.8MPa,喷枪距离100-150mm;
S3:固化:将喷涂完成的物件取下,放入惰性氛围烘箱中烧结固化形成喷涂层。
优选地,所述喷涂层的厚度为80-120um。
优选地,所述步骤S3中的固化温度为150-200℃,固化时间为2-5小时。
与现有技术相比,本发明利用高压静电喷涂法,将复合陶瓷材料通过静电方式涂覆在待喷涂物件上。本发明不仅可以在平面基板上进行涂覆,亦可以对复杂立体物件进行表面涂覆,具有很强的适用性。所得产品具有陶瓷优良的物理、化学、机械性能。
具体实施方式
以下对本发明的具体实施方式进行详细说明。应当理解的是,此处所描述的具体实施方式仅用于说明和解释本发明,并不用于限制本发明。
实施例1
陶瓷喷涂料,包括下述组成材料:
73重量份粒径D50为3um的Al2O3陶瓷粉体,
20重量份的E-44型环氧树脂,
2重量份的偏苯三酸酐,
1重量份的金刚石粉、1重量份的滑石粉和1重量份的钛白粉,
2重量份的乙酸乙酯。
按下述方法进行制备:
称取73重量份粒径D50为3um的Al2O3陶瓷粉体,加入20重量份的E-44型环氧树脂粘接剂、2重量份的偏苯三酸酐固化剂、1重量份的金刚石粉、1重量份的滑石粉和1重量份的钛白粉填料以及2重量份的乙酸乙酯稀释剂,放入超声高速形星搅拌机于300rpm下高速超声搅拌5小时,制得陶瓷喷涂料。
使用方法如下:
S1:装料:将陶瓷喷涂料装入桶中,并将静电喷涂机的进料管与桶相连并伸入陶瓷喷涂料中;
S2:喷涂:将待喷涂物件悬挂并接地,静电喷涂电压为60kv,喷涂气压0.7MPa,喷枪距离120mm;
S3:固化:将喷涂完成的物件取下,放入180℃惰性氛围烘箱中烧结5小时,烧结固化形成喷涂层。
制得的物件表面喷涂层光亮,其厚度为95um,硬度为6.5,耐温达220℃不黄变,耐压可达6kv,导热系数为15W/m·k,线膨胀系数为2.1×10-5/℃。该材料是一种良好的硬件导热涂层。
实施例2
陶瓷喷涂料,包括下述组成材料:
81重量份粒径D50为5um的部分稳定型ZrO2陶瓷粉体,
12重量份的E-42型环氧树脂,
2重量份的偏苯四酸酐,
1重量份的锻烧高岭土、1重量份的滑石粉和1重量份的石英粉,
2重量份的乙酸乙酯。
按下述方法进行制备:
称取81重量份粒径D50为5um的部分稳定型ZrO2陶瓷粉体,加入12重量份的E-42型环氧树脂粘接剂、2重量份的偏苯四酸酐固化剂、1重量份的锻烧高岭土、1重量份的滑石粉和1重量份的石英粉填料以及2重量份的乙酸乙酯稀释剂,放入超声高速形星搅拌机于350rpm下高速超声搅拌4.5小时,制得陶瓷喷涂料。
使用方法如下:
S1:装料:将陶瓷喷涂料装入桶中,并将静电喷涂机的进料管与桶相连并伸入陶瓷喷涂料中;
S2:喷涂:将待喷涂物件悬挂并接地,静电喷涂电压为80kv,喷涂气压0.6MPa,喷枪距离100mm;
S3:固化:将喷涂完成的物件取下,放入200℃惰性氛围烘箱中烧结3.5小时,烧结固化形成喷涂层。
制得的物件表面喷涂层光亮、光滑,其厚度为110um,硬度为7.2,耐温达300℃不黄变,其抗弯曲强度可达50MPa,断裂韧性可达3.2MPa·m1/2,其喷涂在钢材料表面热膨胀系数为1.4×10-5/℃,是一种良好的钢基材料涂覆料。
实施例3
陶瓷喷涂料,包括下述组成材料:
85重量份粒径D50为2um的六方系BN陶瓷粉体,
10重量份的E-54型环氧树脂,
2重量份的偏苯四酸酐,
1重量份的锻烧高岭土,
2重量份的乙酸乙酯。
按下述方法进行制备:
称取85重量份粒径D50为2um的六方系BN陶瓷粉体,加入10重量份的E-54型环氧树脂粘接剂、2重量份的偏苯四酸酐固化剂、1重量份的锻烧高岭土填料以及2重量份的乙酸乙酯稀释剂,放入超声高速形星搅拌机于300rpm下高速超声搅拌5小时,制得陶瓷喷涂料。
使用方法如下:
S1:装料:将陶瓷喷涂料装入桶中,并将静电喷涂机的进料管与桶相连并伸入陶瓷喷涂料中;
S2:喷涂:将待喷涂物件悬挂并接地,静电喷涂电压为90kv,喷涂气压0.8MPa,喷枪距离110mm;
S3:固化:将喷涂完成的物件取下,放入150℃惰性氛围烘箱中烧结5小时,烧结固化形成喷涂层。
制得的物件表面喷涂层光亮,其厚度为110um,硬度为1.8,耐温达300℃不黄变,耐压可达10kv,导热系数为30W/m·k,其抗弯曲强度可达50MPa,热膨胀系数为1.1×10-5/℃,断裂韧性可达3.0MPa·m1/2,适用于柔性物件的表面陶瓷涂装。
实施例4
陶瓷喷涂料,包括下述组成材料:
81重量份粒径D50为2um的SiC陶瓷粉体,
12重量份的E-52型环氧树脂,
2重量份的偏苯四酸酐,
1重量份的金刚石粉和1重量份的锻烧高岭土,
2重量份的乙酸乙酯。
按下述方法进行制备:
称取81重量份粒径D50为2um的SiC陶瓷粉体,加入12重量份的E-52型环氧树脂粘接剂、2重量份的偏苯四酸酐固化剂、1重量份的金刚石粉和1重量份的锻烧高岭土填料以及2重量份的乙酸乙酯稀释剂,放入超声高速形星搅拌机于350rpm下高速超声搅拌5时,制得陶瓷喷涂料。
使用方法如下:
S1:装料:将陶瓷喷涂料装入桶中,并将静电喷涂机的进料管与桶相连并伸入陶瓷喷涂料中;
S2:喷涂:将待喷涂物件悬挂并接地,静电喷涂电压为50kv,喷涂气压0.7MPa,喷枪距离100mm;
S3:固化:将喷涂完成的物件取下,放入200℃惰性氛围烘箱中烧结5小时,烧结固化形成喷涂层。
制得的物件表面喷涂层光亮,其厚度为110um,硬度为7,耐温达300℃不黄变,导热系数为60W/m·k,线膨胀系数为1.0×10-5/℃。该材料可增加材料导热性和表面硬度。
与现有技术相比,本发明利用高压静电喷涂法,将复合陶瓷材料通过静电方式涂覆在待喷涂物件上。本发明不仅可以在平面基板上进行涂覆,亦可以对复杂立体物件进行表面涂覆,具有很强的适用性。所得产品具有陶瓷优良的物理、化学、机械性能。
最后应说明的是:以上所述的各实施例仅用于说明本发明的技术方案,而非对其限制;尽管参照前述实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述实施例所记载的技术方案进行修改,或者对其中部分或全部技术特征进行等同替换;而这些修改或替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。
Claims (10)
1.一种陶瓷喷涂料,其特征在于:包括下述组成材料:
60-80重量份的陶瓷粉体,
10-30重量份的粘接剂,
1-2重量份的固化剂,
2-8重量份的填料,
1-2重量份的稀释剂,
其中:
所述陶瓷粉体的粒径为1-5um,
所述陶瓷粉体为氧化物陶瓷粉体、氮化物陶瓷粉体、硼化物陶瓷粉体或碳化物陶瓷粉体。
2.根据权利要求1所述的陶瓷喷涂料,其特征在于:
所述氧化物陶瓷粉体为Al2O3、ZrO2、BeO、MgO和TiO2中的一种或几种,
所述氮化物陶瓷粉体为AlN、BN、Si3N4和ZrN中的一种或几种,
所述硼化物陶瓷粉体为ZrB2和TiB2中的一种或两种,
所述碳化物陶瓷粉体为B4C、SiC、ZrC、TiC和WC中的一种或几种。
3.根据权利要求1所述的陶瓷喷涂料,其特征在于:所述粘接剂为热固型环氧树脂或改性热固型环氧树脂。
4.根据权利要求1所述的陶瓷喷涂料,其特征在于:所述固化剂为胺类、苯胺类、酸酐类、过氧化物类和咪唑类中的一种或几种。
5.根据权利要求1所述的陶瓷喷涂料,其特征在于:所述填料为滑石粉、金刚石粉、锻烧高岭土、长钾石粉和钛白粉中的一种或几种。
6.根据权利要求1所述的陶瓷喷涂料,其特征在于:所述稀释剂为常用醇类、酯类、烷烃类、醚类和酮类中的一种或几种。
7.一种制备权利要求1-6任一项所述的陶瓷喷涂料的方法,其特征在于:称取陶瓷粉体,加入粘接剂、固化剂、填料以及稀释剂,放入超声高速形星搅拌机于300-400rpm下高速超声搅拌4-6时,制得陶瓷喷涂料。
8.一种使用权利要求1-6任一项所述的陶瓷喷涂料的方法,其特征在于:包括以下步骤:
S1:装料:将陶瓷喷涂料装入桶中,并将静电喷涂机的进料管与桶相连并伸入陶瓷喷涂料中;
S2:喷涂:将待喷涂物件悬挂并接地,静电喷涂电压为50-80kv,喷涂气压0.5-0.8MPa,喷枪距离100-150mm;
S3:固化:将喷涂完成的物件取下,放入惰性氛围烘箱中烧结固化形成喷涂层。
9.根据权利要求8所述的使用陶瓷喷涂料的方法,其特征在于:所述喷涂层的厚度为80-120um。
10.根据权利要求8所述的使用陶瓷喷涂料的方法,其特征在于:所述步骤S3中的固化温度为150-200℃,固化时间为2-5小时。
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