摘 要

在流延成型工艺过程中，配浆决定着流延生瓷带的产品外观品质、综合性能。

本文的主要研究内容是基于CBS系微晶陶瓷料，加入适当类型与质量百分数的有机添加剂（如分散剂、粘结剂等），配制CBS系微晶陶瓷悬浮分散均匀的浆料，以制备外观光顺、厚度均匀、致密度高的生瓷带。通过对加有添加剂的CBS系微晶陶瓷料进行的傅里叶红外光谱测试分析，对所存在的官能团进行定性分析，探究有机添加剂与CBS系微晶陶瓷料之间作用的原理。设置多组分散剂、粘结剂的对照试验，调整不同组成配制比例的有机添加剂，基于对一系列沉降实验、分散实验的详细观察，对比有机添加剂不同使用量时的作用效果。研究了不同组成的有机添加剂，对生瓷带密度、生瓷带抗拉强度的影响，归纳总结出了相互的对应关系，寻求最适合放大实践生产的优化的配制比例。经过多轮实验研究发现：对CBS系微晶陶瓷料，优化分散剂的使用量为1 wt％，粘结剂的使用量为10 wt％时，可以得到致密度高的生瓷带密度，达到1.53 g/cm³，对应流延制备生瓷带的最高拉伸强度达到1.73 MPa。在该优化组成范围，流延生瓷带经过叠合成型、烧制出来的瓷片，在约12 GHz频率下，测试介电性能，得到的介电常数为5.88，介质损耗为5×10^-4。

关键词：流延成型 分散剂 粘结剂 配制比例

Research on tape casting of CBS microcrystalline ceramic material

Abstract

During the casting process, the pulping determines the appearance quality and overall performance of the cast porcelain strip.

The main research content of this paper is based on CBS-based microcrystalline ceramic materials, adding appropriate types and mass percentages of organic additives (such as dispersants, binders, etc.) to prepare CBS-based microcrystalline ceramic slurry suspension with dispersion and uniform. In order to prepare a green tape which with smooth appearance, uniform thickness and high density. Through the Fourier transform infrared spectroscopy test analysis of CBS-based microcrystalline ceramic materials with additives, the functional groups present were qualitatively analyzed to explore the principle of interaction between organic additives and CBS-based microcrystalline ceramic materials. Set up some group of dispersant, binder control experiments, adjust the different composition of organic additives, based on a series of sedimentation experiments, dispersion experiments to compare the effects of different organic additives. We researched the influence of organic additives with different compositions on the density and tensile strength of green tape, summarized the corresponding relationship, sought out the optimal formulation ratio suitable for amplifying practical production. After several rounds of experimental research, we found that for the CBS microcrystalline ceramic material when the amount of the dispersant is optimized to be 1 wt% and the amount of the binder used is 10 wt%, can obtained the high density green tape, reaching 1.53 g/cm³, corresponding to the tensile strength reaching 1.73 MPa. In this optimized composition range, made the green tape. Then after cast and fired get the ceramic sheet, test the dielectric properties at a frequency of about 12 GHz. The dielectric constant was 5.88 and the dielectric loss was 5×10^-4.

Key Words: Tape Casting; dispersant; binder; Formula ratio

目录

摘 要 I

Abstract II

第一章 绪论 1

1.1 CBS系微晶陶瓷 1

1.2 低温共烧陶瓷技术概述 2

1.2.1 低温共烧陶瓷技术 2

1.2.2 LTCC技术流程 2

1.2.3 LTCC技术的应用 3

1.3 流延成型 4

1.3.1 粉料制备 4

1.3.2 溶剂 4

1.3.3 分散剂 5

1.3.4 粘结剂 5

1.3.5 增塑剂 6

1.3.6 流延成型工艺 6

1.4 课题背景和研究思路 7

第二章 实验部分 9

2.1 实验原理及设备 9

2.1.1 实验原料 9

2.1.2 实验器材 9

2.2 工艺流程 10

2.2.1 预混料 10

2.2.2 流延成型 12

2.2.3 压片 12

2.2.4 低温共烧 12

2.3 性能测试与表征 12

2.3.1 试样物相分析 12

2.3.2 流延浆料粘度测试 13

2.3.3 玻璃粉末粒度分布分析 13

2.3.4 生瓷片体积密度测试 13

2.3.5 介电性能测试 13

第三章 流延体系性能研究与分析 14

3.1 引言 14

3.2 分散剂 14

3.2.1 PAA-PEO分散机理 14

3.2.2 添加PAA-PEO的影响 17

3.3 粘结剂 19

3.3.1 PVB粘结剂的影响 19

3.3.2 使用粘结剂后的微观表征 21

第四章 研究结果与展望 22

参考文献 23

致谢 26

第一章 绪论

1.1 CBS系微晶陶瓷

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