行业组件数据 · 2026

无机填料

Inorganic filler is a non-conductive particulate material added to epoxy resin compounds to enhance electrical insulation properties, thermal conductivity, and mechanical strength.

技术定义与适配语境
典型 无机填料 会按材料、尺寸公差、适配关系和失效风险在 电气设备制造 中评估。

Inorganic fillers are finely ground, non-metallic particulate materials incorporated into electrical insulation epoxy resin compounds to modify their physical, thermal, and electrical properties. These fillers, typically composed of minerals like silica, alumina, or mica, increase dielectric strength, reduce thermal expansion, improve thermal conductivity for heat dissipation, and enhance mechanical properties such as hardness and dimensional stability. They function by dispersing within the polymer matrix, creating barriers to electrical current and heat flow while reinforcing the composite structure.

组件规格

定义
Inorganic fillers are finely ground, non-metallic particulate materials incorporated into electrical insulation epoxy resin compounds to modify their physical, thermal, and electrical properties. These fillers, typically composed of minerals like silica, alumina, or mica, increase dielectric strength, reduce thermal expansion, improve thermal conductivity for heat dissipation, and enhance mechanical properties such as hardness and dimensional stability. They function by dispersing within the polymer matrix, creating barriers to electrical current and heat flow while reinforcing the composite structure.
工作原理
Inorganic fillers work by dispersing uniformly within the epoxy resin matrix, where they increase the tortuosity of electrical and thermal pathways, thereby enhancing insulation resistance and heat dissipation. Their high dielectric constant and low electrical conductivity prevent current leakage, while their thermal properties help transfer heat away from sensitive components. The fillers also mechanically reinforce the composite by distributing stress and reducing polymer chain mobility.
材料
Common materials include silica (SiO2)alumina (Al2O3)boron nitride (BN)micaand calcium carbonate (CaCO3)with particle sizes ranging from nanometers to micrometerssurface treatments (e.g.silane coupling agents) for improved adhesionand purity levels exceeding 99% for critical applications.
Purity
>99%
Density
2.2-3.9 g/cm³
Particle Size
0.1-50 μm
Moisture Content
<0.1%
Dielectric Constant
3-10
Thermal Conductivity
1-30 W/m·K
标准
ISO 6721ISO 11359DIN 53483ASTM D150

行业分类与别名

无机填料 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Poor dispersion of filler particles->Reduced dielectric strength and thermal conductivity->Use surface treatments and optimized mixing processes
Moisture contamination in filler->Decreased insulation resistance and potential short circuits->Implement strict drying protocols and moisture-controlled storage

工业生态与工程逻辑

0
Agglomeration leading to poor dispersion
1
Moisture absorption reducing dielectric properties
2
Incompatibility with resin causing delamination
3
Abrasive wear during processing

合规与检测

tolerance
Particle size tolerance ±10%, dielectric constant within ±5% of specified value
test method
ISO 6721 for dielectric properties, ASTM D150 for electrical insulation, ISO 11359 for thermal analysis

制造该组件的工厂

来自 CNFX 组件能力表的相关制造商资料。

制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

What is the primary function of inorganic fillers in electrical insulation epoxy resins?

The primary function is to enhance dielectric strength, improve thermal conductivity for heat dissipation, and increase mechanical stability, ensuring reliable insulation in high-voltage or high-temperature environments.

How do particle size and distribution affect filler performance?

Smaller, uniformly distributed particles provide better dispersion in the resin matrix, leading to improved electrical insulation, reduced voids, and enhanced mechanical properties, while larger particles may compromise uniformity and performance.

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CNFX Industrial Component Index · 电气设备制造

数据基础

CNFX 制造商资料、技术分类、公开产品信息和持续合理性检查。

初步技术归类
本页用于结构化准备研究、RFQ 和供应商评估,不替代买方自己的供应商资质审查、标准核验和技术批准。

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URN:CNFX:ME:UNIT:INORGANIC_FILLER