随着便携式电子设备和无线通信技术的迅速发展，各种数字化、高频化的电子电器设备在工作时向人类空间辐射了大量不同波长频率的电磁波，从而导致了新的环境污染——电磁干扰(Electromagnetic Interference，EMI)和射频干扰(Radio Frequency Interference ，RFI)，这不仅会影响电子设备及其组件的完整性（误动、图像障碍以及声音障碍）和强度——还会对人类和其它生物体造成严重的危害。值得一提的是，当今的网络信息安全风险也来自从显示器辐射的意外电磁波泄漏。

With the fast development of portable electronic equipment and wireless communication technology, various digital and high-frequency electronic and electrical equipment radiate a large number of electromagnetic waves of different wavelengths and frequencies to the human space during operation, causing a new type of environmental pollution – Electromagnetic Interference (EMI) and Radio Frequency Interference (RFI), which will not only affect the integrity (malfunction, visual disturbance and sound disturbance) and strength of electronic equipment and its components, but will also seriously damage humans and other creatures. It is worth mentioning that today's cybersecurity risks also come from accidental leakage of electromagnetic waves radiated from displays.

为了有效地防止电磁噪声，保护国家和个人的生命、健康和信息安全，需要采纳具有电磁兼容的发泡材料——聚氨酯海绵、聚烯烃海绵和有机硅泡沫，甚至是碳基泡沫、陶瓷泡沫、铝合金泡沫等等，这些发泡材料将与织物、金属化织物、胶带、转移粘合剂、组合网材料结合。但是，噪音不能完全去除，部分去除噪音达到要求的行业标准就足够了。这个标准就是EMC证书及EMC的质量保证测试。

In order to effectively reduce electromagnetic noise and protect the life, health and information security of the country and individuals, it is necessary to adopt foams with electromagnetic compatibility – polyurethane foam, polyolefin foam and silicone foam, and even carbon-based foam, ceramic foam, Aluminum alloy foam, etc. These foaming materials will be combined with fabrics, metallized fabrics, tapes, transfer adhesives, composite mesh materials. Although the noise cannot be completely removed, it is possible to partially reduce the noise to meet the industry standard, which is the EMC Certificate and EMC's Quality Assurance Test.

高性能的发泡材料独特，其多孔网格结构呈现出电磁屏蔽、声波反射、吸波与接地的功能，足以消耗任何强大的电磁波，或无线电频率 (RF) 信号和其他可能被网络犯罪分子拦截和使用的电磁辐射的传输；其高强度、高抗热、高抗震、高绝缘性能足以保障电信设施——甚至是导弹、卫星、雷达、核工程、国家和企业安全数据中心在任何严峻的——海洋、太空以及高温高湿高寒的环境下运行。以供在最严苛的环境中提供出色的屏蔽性能，并在适当的情况下提供出色的环境密封。加上每一种发泡材料都经过精心配制并定制裁切样式，这些组合材料将形成完整的开发定制解决方案，帮助您或您的客户构建最佳 EMI 防御的协调系统，价值如下：

High-performance foaming materials are quite unique: its porous mesh structure has electromagnetic shielding, sound wave reflection, wave absorption and grounding functions, which are able to dissipate any powerful electromagnetic waves, or radio frequency (RF) signals and the transmission of other electromagnetic radiation that may be intercepted and used by cybercriminals; its high strength, high heat resistance, high shock resistance, and high insulation properties are capable of supporting telecommunications facilities, even missiles, satellites, radars, nuclear engineering, national and enterprises’ data security centers to operate in any harsh environments, such as ocean, space, and high-temperature, high-humidity and extremely cold environments. These materials will perform excellent shielding function in the harshest environment, and outstanding sealing function when needed. What’s more, each type of foaming material is carefully formulated and customized into various shapes, therefore, these combined materials will offer complete development and customization solutions, supporting you or your clients to establish the best coordinated system for EMI defense. The values are as follows:

• 泡沫垫片通过其柔顺性和缓冲性能适应机械公差叠加
• 抑制干扰并满足抗扰度的各国标准和行业标准
• 通过滤波、接地和屏蔽来隔离有问题的电路
• 通过提高设备对敏感电路的免疫力来降低设备的灵敏度。
• 解决从 PC 板辐射到传导辐射等最复杂的 EMI 难题。
• 定制客户的 EMI 基本要素

Foam gasket can accommodate mechanical tolerance stack-up through its flexibility and cushioning properties.
Suppress interference and meet immunity standard made by the industry and different countries.
Isolate problematic circuits by filtering, grounding, and shielding.
Reduce the sensitivity of facilities by increasing their immunity to sensitive circuits.
 Solve the most complicated EMI challenges, including PC board radiation and conducted radiation.
Customize EMI fundamentals for customers.

关于发泡材料的具体性能、原理和应用，请详细阅读链接：
https://mp.weixin.qq.com/s/Q3KsEf1Ru8ZgxqaQa1DQkg 

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