如何为电磁屏蔽保护选对导电橡胶材料？
随着电子工业的迅猛发展和电子设备的广泛应用，电磁波辐射被认为是继水污染、噪音污染和空气污染后的第四大污染。电子器件发射的高频电磁波不仅会导致设备的非正常运转，还会影响人们的正常生活，对人体健康造成不良的影响。因此，电磁屏蔽材料的研究开发备受科学界和工业界的关注。
电磁屏蔽材料作为保证产品安全性能的核心部件，需要选择性价比高的产品，莱尔德科技是世界领先的电磁屏蔽产品供应商，可以提供由专业设计供应的电磁干扰屏蔽产品，拥有全球领先的产品和服务，为客户定制的产品已广泛应用于电子行业的各方面，以下介绍一种环境密封和EMI屏蔽的理想材料——导电橡胶。
导电橡胶是基于分散颗粒在橡胶体、或者定向线在固体橡胶或者海绵橡胶体、或者浸渍线网屏或者金属网制造。它们生产高导电率且富有弹性的垫片材料，适用于EMI密封以及压力、环境密封等。导电橡胶用于电子产品外壳，防止电磁干扰。通常防护系统有金属外壳和盖子及夹在它们中间的导电垫片组成。这些垫片的主要功能是为外壳和盖板之间提供电路导通，以满足接地和EMI防护要求，同时防止液体入侵到内部电子零件。
选择合适的导电橡胶，需要注重以下指标：橡胶填充物、体电阻、屏蔽性能、密度、硬度、压缩率、工作温度，其中橡胶填充物是材料特性，体电阻和屏蔽性能是电气特性，密度、硬度、压缩率和工作温度是物理特性。
体电阻和屏蔽性能是导电橡胶作为电磁屏蔽材料的核心指标，体电阻越低、屏蔽特性越高，电磁屏蔽的效果就越好；压缩率和工作温度主要影响使用寿命，低温和高温都会影响橡胶的属性，工作温度范围越宽导电橡胶工作寿命越长。
以下是莱尔德科技导电橡胶的主要产品分类：
表中可以看出掺杂银的导电橡胶性能最好，从性价比方面考虑掺杂银/镍、镍/石墨的导电橡胶比较适用于普通的电子设备产品，掺杂银的导电橡胶适用于对电磁屏蔽效果敏感的高端电子产品。
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【选型】Laird（莱尔德） 电磁屏蔽材料选型指南
目录- 板级屏蔽罩 通风孔盖板 泡棉材料 导电弹性体 微波吸收材料
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【选型】Laird（莱尔德） 导电橡胶选型指南
目录- ELECTROSEAL™导电橡胶压制品 矩形条导电橡胶压制品 空心矩形条导电橡胶压制品 空心D型条导电橡胶压制品 O型条管导电橡胶压制品 D型条导电橡胶压制品 通道条导电橡胶压制品 O型条导电橡胶压制品 P型条导电橡胶压制品 GEMINI™混合压成品 模制O型环 平垫圈垫片 模制波导垫片 矩形波导垫片 ElectroMet™定向线 ElectroMet™浸渍钢丝网和金属网状MIL接头垫片 MIL连接器垫圈 D型超小接头屏蔽罩 自动点胶工艺 现场制模电路板防护罩 ElectroCoat™导电橡胶 板到底盘托脚 EMI垫片的腐蚀性
型号- 8408-0227-XX,8863-0150,8569-0131-XX,8516-0132-XX,8516-0155-XX,8560-0099-XX,8560-0110-XX,8563-0167-XX,8516-0201-XX,8860-0100-300-XX,8563-0098-XX,8866-0100,8863-0140,8863-0145,8866-0103,8866-0105,8563-0315-XX,8516-0109-XX,8867-0166,8867-0165,8563-0108-XX,8516-0120-XX,8563-0076-XX,8563-0326-XX,8563-0213-XX,8863-0130,8866-0110,SIL35-HXP,8866-0111,8863-0135,8866-0116,8563-0339-XX,8408-0215-XX,8516-0108-XX,8516-0167-XX,8408-0251-XX,8866-0120,8560-0144-XX,8863-0120,8866-0125,8860-0020-150-XX,8866-0126,8866-0127,8563-0122-XX,8516-0156-XX,8866-0129,8560-0098-XX,8516-0131-XX,8863-0125,8563-0131-XX,8516-0145-XX,8860-0125-100-XX,8563-0248-XX,8863-0196,8863-0197,8560-0108-XX,8560-0143-XX,8863-0199,8408-0203-XX,8563-0077-XX,8516-0119-XX,8516-0157-XX,8863-0180,8563-0281-XX,8860-0045-324-XX,8863-0183,8863-0184,8516-0211-XX,8863-0189,8516-0405-XX,8408-0126-XX,8516-0168-XX,8563-0166-XX,SNC70-RXP,8868-0085,8560-0330-XX,8516-0118-XX,8863-0170,8868-0084,8863-0175,8868-0081,8516-0130-XX,8563-0089-XX,8860-0093-100-XX,8516-0146-XX,8516-0169-XX,8563-0165-XX,8408-0230-XX,8863-0160,8408-0213-XX,8516-0212-XX,8863-0165,8516-0107-XX,8563-0143-XX,8516-0141-XX,8516-0164-XX,8563-0106-XX,8563-0078-XX,8516-0135-XX,8860-0093-324-XX,8416-0320-22,8516-0404-XX,8563-0090-XX,8408-0127-XX,8563-0129-XX,8416-0120-23,8516-0123-XX,8563-0130-XX,8408-0242-XX,8860-0045-300-XX,8416-0320-21,8563-0187-XX,8516-0204-XX,8563-0279-XX,8408-0254-XX,8408-0116-XX,8408-0212-XX,8516-0153-XX,8563-0255-XX,8563-0232-XX,8560-0158-XX,8516-0111-XX,8560-0331-XX,8867-0105,8563-0079-XX,8860-0093-300-XX,8516-0403-XX,8563-0280-XX,8867-0100,8563-0164-XX,8867-0102,8867-0101,8560-0113-XX,8867-0136,8416-0120-57,8563-0068-XX,8563-0139-XX,8563-0211-XX,8516-0122-XX,8563-0080-XX,8560-0100-XX,8563-0140-XX,8563-0234-XX,8408-0140-XX,8862-0105,8563-0257-XX,SNN60-RXP,8862-0100,8867-0130,8516-0165-XX,8860-0032-324-XX,8867-0126,8867-0125,8867-0128,8860-0062-100-XX,8867-0127,SNL25-RXP,8860-0032-150-XX,8860-0125-324-XX,8563-0091-XX,8408-0200-XX,8563-0128-XX,8867-0158,SNL60-RXP,8560-0145-XX,8560-0097-XX,8516-0203-XX,8860-0045-100-XX,8563-0327-XX,8867-0147,8563-0069-XX,8863-01200,8408-0117-XX,8516-0121-XX,8862-0114,8867-0144,8862-0113,8408-0128-XX,8516-0110-XX,8563-0185-XX,8862-0112,8867-0141,8864-2618,8408-0118-XX,8868-0100,8861-0130,8861-0131,8861-0135,8861-0136,8864-3824,8563-0253-XX,8560-0104-XX,8563-0196-XX,8408-0130-XX,8868-0105,8860-0100-100-XX,8516-0161-XX,8861-0120,8861-0121,8861-0125,8864-3714,8864-3715,8860-0093-150-XX,8408-0221-XX,SNC70-HXP,8516-0126-XX,8563-0070-XX,8560-0116-XX,8865-0144,8516-0137-XX,8516-0162-XX,8516-0114-XX,8865-0140,8860-0125-150-XX,8861-0110,8861-0115,8860-0125-300-XX,SNN65-HXP,8860-0062-324-XX,8408-0245-XX,8563-0127-XX,8865-0145,8563-0161-XX,8596-0096-XX,8861-0105,8563-0241-XX,8864-0105,8864-0104,8864-0103,8864-0102,8563-0218-XX,8864-0101,8408-0209-XX,8864-0100,8516-0173-XX,8861-0100,8560-0299-XX,8861-0103,8563-0334-XX,8865-0120,8560-0114-XX,8408-0120-XX,8563-0116-XX,8516-0102-XX,8516-0125-XX,8516-0151-XX,8864-0110,8864-0231,8516-0205-XX,8560-0435-XX,8416-0330-21,8563-0071-XX,8416-0330-22,8865-0125,8865-0130,8864-0127,8864-0125,8408-0257-XX,8563-0243-XX,8563-0094-XX,8516-0136-XX,8864-3515,8563-0159-XX,8563-0254-XX,8864-0120,8516-0185-XX,8865-0135,8864-0139,8864-0137,8865-0100,8563-0072-XX,8864-0136,8864-0135,8563-0095-XX,8560-0231-XX,8860-0032-300-XX,8516-0101-XX,8865-0105,SNK55-RXP,8865-0110,8864-0147,8516-0163-XX,8864-0144,8516-0124-XX,8516-0152-XX,8864-0143,8865-0116,8560-0505-XX,8864-0142,8563-0126-XX,8864-0141,8569-0127-XX,8860-0062-300-XX,8865-0115,8563-0324-XX,8864-0159,8864-0156,8868-0067,8516-0170-XX,8866-0050,8516-0158-XX,8516-0209-XX,8516-0106-XX,8864-0153,8868-0055,8563-0073-XX,8864-0168,8864-0167,8868-0056,8864-0166,8563-0342-XX,8563-0285-XX,8408-0133-XX,8563-0250-XX,8408-0218-XX,8516-0147-XX,8864-0163,8864-0162,8864-0161,8408-0294-XX,8864-0160,8408-0206-XX,8408-0248-XX,8860-0100-150-XX,8516-0210-XX,8563-0062-XX,8861-0192,8861-0193,8563-0226-XX,8560-0234-XX,8864-0055,8864-0053,8864-0173,8864-0172,8864-0050,8864-0171,8563-0274-XX,8864-010462,8864-0170,ELECTROCOAT,8563-0323-XX,8860-0032-100-XX,8563-0096-XX,8861-0188,8560-0444-XX,8516-0159-XX,8861-0189,8560-0107-XX,8563-0249-XX,8408-0110-XX,8861-0181,8861-0182,8861-0183,8861-0184,8864-0060,8864-0180,8563-0074-XX,8560-0200-XX,8563-0263-XX,8860-0020-300-XX,8563-0097-XX,8516-0160-XX,8861-0174,8563-0343-XX,8861-0175,8866-0130,8866-0131,8861-0179,8866-0134,8866-0135,8866-0136,8866-0137,8863-0110,8866-0139,8861-0172,8861-0173,8863-0115,8408-0111-XX,8516-0148-XX,8516-0408-XX,8563-0180-XX,8563-0216-XX,8408-0123-XX,8860-0045-150-XX,8516-0171-XX,8563-0113-XX,8861-0167,8861-0169,8860-0020-100-XX,8516-0105-XX,8866-0148,8863-0100,8560-0453-XX,8560-0105-XX,8863-0105,8861-0160,8516-0208-XX,8860-0100-324-XX,8868-0120,8563-0322-XX,8868-0125,8516-0172-XX,8861-0155,8866-0155,8864-0091,8516-0104-XX,8864-0090,8560-0106-XX,8563-0123-XX,8563-0251-XX,8861-0150,8860-0062-150-XX,8864-0095,8563-0075-XX,8516-0138-XX,8563-0344-XX,8
你知道常见的电磁屏蔽材料有哪些吗？
电磁屏蔽的作用原理是利用屏蔽体对电磁能流的反射、吸收和引导作用，其与屏蔽结构表面和屏蔽体内部感生的电荷、电流与极化现象密切相关。电磁屏蔽指的是对电场（E场）的屏蔽，它通常可选用的屏蔽材料种类比较多。
【选型】Laird 导电橡胶材料选型参考，三种橡胶基质，七种填充材料
从选型角度考虑，导电橡胶材料比较关键的指标有屏蔽效能、体积电阻率、适用温度范围、材料的硬度和强度等，主要由金属填充材料的种类、填充比例、制作工艺和橡胶基质（密度、工艺等）决定。Laird推荐的导电橡胶基质有三种，EPDM（三元乙丙橡胶）、硅橡胶和氟硅橡胶。以填充物材料为区别，将Laird推荐的19款导电橡胶材料分为7个大类，简单介绍一下各自的特点和应用优势，可作为选型参考。
如何正确地选择EMI屏蔽材料
随着电子设备的越来越多，EMI问题日益严重，EMI屏蔽材料兴起并广泛应用在各领域。在通信，计算机，自动化，医疗等商用电子设备上选择最有效的EMI屏蔽材料时，通常可以考虑以下几种类型：铍铜簧片，SMD接地弹片、导电泡棉，导电橡胶等。依据设备的不同需要，不同的屏蔽材料可提供不同程度的电磁屏蔽，适合不同的形状和环境密封的要求。
海克赛德（HexadTek）导电橡胶产品选型指南
型号- HTDB-0093-300-XX,HTSQ-0062-300-XX,HSOD-0135-XX,HTSO-0120-XX,HTSA-0478-20-XX,HTSD-0100-XX,HTSO-0105-XX,HTSQ-0020-400-XX,HTSQ-0120-200-XX,HTSP-0126-XX,HTSP-0141-XX,HTSU-0085-XX,HTSO-0140-XX,HTSQ-0045-150-XX,HTSQ-0045-800-XX,HTSQ-0032-100-XX,HTSQ-0040-150-XX,HSOD-0106-XX,HSOD-0144-XX,HTSQ-0062-400-XX,HTSA-0236-32-XX,HTSO-0100-XX,HTSO-0125-XX,HTSC-0105-XX,HTSQ-0093-400-XX,HTSA-0953-90-XX,HTSA-0236-20-XX,HTSD-0120-XX,HTSP-0144-XX,HTSA-0478-40-XX,HTSQ-0020-300-XX,HTSA-0305-40-XX,HTSP-0158-XX,HTSO-0183-XX,HTSQ-0070-150-XX,HTSU-0167-XX,HTSO-0190-XX,HTSA-0953-20-XX,HTSO-0202-XX,HTSQ-0070-200-XX,HTSA-0236-90-XX,HTSD-0135-XX,HSOD-0147-XX,HTSU-0115-XX,HTSQ-0070-300-XX,HTSQ-0020-100-XX,HTSP-0147-XX,HTSA-1270-32-XX,HTSO-0145-XX,HTSP-0128-XX,HTSQ-0032-400-XX,HTSA-0305-20-XX,HTSP-0105-XX,HTSU-0084-XX,HTSA-2540-32-XX,HTSA-0478-90-XX,HSOD-0130-XX,HTSO-0165-XX,HTSO-0180-XX,HSOD-0146-XX,HTSD-0115-XX,HSOD-0138-XX,HTSQ-0040-200-XX,HTSQ-0093-150-XX,HTSP-0100-XX,HTSA-1270-60-XX,HTSQ-0040-800-XX,HSOD-0121-XX,HTSD-0140-XX,HTSP-0125-XX,HTSO-0160-XX,HTSC-0166-XX,HTSA-2540-60-XX,HTSQ-0062-800-XX,HTSQ-0080-200-XX,HTDB-0093-800-XX,HSOD-0107-XX,HTSO-0200-XX,HTSQ-0062-200-XX,HTSU-0056-XX,HTSC-0110-XX,HTSC-0095-XX,HTSQ-0045-300-XX,HTSA-0318-90-XX,HTSQ-0080-300-XX,HTSA-0305-32-XX,HSOD-0160-XX,HTSU-0005-XX,HSOD-0116-XX,HTSU-0175-XX,HTSA-1270-40-XX,HTSA-0318-32-XX,HTSU-0100-XX,HTSU-0120-XX,HSOD-0148-XX,HTSO-0050-XX,HTSO-0115-XX,HTSC-0115-XX,HTSQ-0045-400-XX,HTSQ-0040-400-XX,HTSA-0305-90-XX,HTSA-2540-40-XX,HTSD-0136-XX,HTSO-0130-XX,HTSQ-0020-150-XX,HTSP-0136-XX,HTSQ-0093-100-XX,HTSA-0635-90-XX,HTSC-0096-XX,HTSA-0635-40-XX,HTSQ-0032-800-XX,HSOD-0165-XX,HSOD-0136-XX,HTSA-2540-20-XX,HTSC-0101-XX,HTSQ-0080-400-XX,HTSP-0127-XX,HTSQ-0045-200-XX,HTSQ-0080-100-XX,HTSD-0145-XX,HTSP-0102-XX,HTSP-0165-XX,HTSU-0081-XX,HTSU-0105-XX,HTSU-0170-XX,HTSO-0135-XX,HTSA-1270-20-XX,HTSQ-0040-300-XX,HTSQ-0070-800-XX,HTSQ-0120-150-XX,HTSA-1270-90-XX,HTSC-0150-XX,HTDB-0120-800-XX,HTSD-0110-XX,HTSA-0635-20-XX,HTSO-0110-XX,HTSA-0318-40-XX,HSOD-0137-XX,HTSO-0170-XX,HTSA-0478-32-XX,HTSC-0100-XX,HTSQ-0093-200-XX,HTSU-0125-XX,HTSP-0101-XX,HTSP-0166-XX,HTSD-0125-XX,HTSD-0144-XX,HTSA-0236-40-XX,HTSC-0085-XX,HTSA-2540-90-XX,HSOD-0100-XX,HTDB-0120-300-XX,HTSQ-0062-100-XX,HTSC-0040-XX,HTSQ-0070-400-XX,HTSC-0142-XX,HTSA-0478-60-XX,HTSQ-0020-200-XX,HTSQ-0040-100-XX,HTSQ-0032-150-XX,HTSA-0318-20-XX,HTSU-0055-XX,HTSQ-0045-100-XX,HTSQ-0020-800-XX,HTSP-0130-XX,HTSA-0953-40-XX,HTDB-0032-200-XX,HTSA-0318-60-XX,HTSD-0130-XX,HTSO-0175-XX,HTSA-0305-60-XX,HTSA-0953-32-XX,HTSC-0103-XX,HTSQ-0062-150-XX,HTSA-0635-32-XX,HTDB-0080-800-XX,HTSQ-0070-100-XX,HTSD-0105-XX,HTSA-0236-60-XX,HTSD-0116-XX,HTSC-0060-XX,HTSQ-0120-100-XX,HTSQ-0120-400-XX,HTSQ-0080-150-XX,HSOD-0145-XX,HTSA-0635-60-XX,HTSA-0953-60-XX,HTSQ-0032-300-XX
易密斯（EMS）EMI电磁干扰屏蔽材料选型指南（中文）
描述- 易密斯主营铍铜簧片、不锈钢弹片、SMD接地弹片和其他各种EMI电磁屏蔽材料，广泛应用于5G通讯、医疗设备、暗室屏蔽门、新能源汽车电子、智能家居、半导体等行业。截至目前，已服务于全球2200+家优质客户。
型号- EMS-1476,SMD-8-015169025,SMD-M-01302520,SMD-S-015658025,SMD-Q-008352110,SMD-S-008303120,SMD-8-01445620,SMD-C-008201710,EMS-97-500,EMS-880,EMS-77-057,EMS-77-056,EMS-78-010,SMD-8-01709025,76-056 -118.29,EMS-97-221,SMD-C-01252015,SMD-8-012901325,SMD-S-01301720,EMS-2956,EMS-77-071,SMD-Z-01505030,EMS-97-613,EMS-97-612,EMS-97-535L,EMS-97-974,EMS-D07,EMS-95-901,EMS-97-615,EMS-H06,EMS-D01,EMS-D02,EMS-4524,EMS-A40,EMS-1137,EMS-H41-TX,77-082,EMS-788,SMD-C-01264015,EMS-97-640-K2,EMS-77-030,EMS-77-033,SMD-M-01385520,SMD-Q-012321608,EMS-H18,SMD-8-01403720,SMD-C-01262515,EMS-97-7400LN-K3,EMS-A35,EMS-97-360,SMD-8-012707525,EMS-97-521,EMS-97-520,EMS-H12,EMS-97-640,SMD-C-01606020,SMD-M-01558530,EMS-97-919,EMS-77-040,SMD-8-01656520,EMS-77-043,SMD-S折弯-008404125,EMS-396,EMS-97-515,SMD-8-012765665375,SMD-C-015753020,EMS-77-049,SMD-S-008405140,SMD-D-008342520,SMD-D-012557525,EMS-D40,EMS-2803-JLD,EMS - 1185,SMD-Z-01503720,SMD-C-015404525,EMS-97-028,EMS-77-011,EMS-95-934,EMS-77-010,EMS-77-098,EMS-77-012,EMS-78-056,EMS-77-014,EMS-95-136,SMD-M-01362620,SMD-C-012352720,SMD-D-008547025,EMS-97-542,EMS-D35,EMS-97-541,EMS-97-540,EMS-D36,EMS-2803-01,SMD-M-01487025,SMD-8-008354025,SMD-S-01525225,SMD-D-008352712,EMS-178,SMD-S-015706220,EMS,EMS-97-750CC-JLD,EMS-C40ZL,SMD-C-008382020,SMD-Q-012363212,EMS-97-656,EMS-97-655,SMD-M-015701525,EMS-97-815,EMS-77-021,SMD-C-015705525,EMS-97-538,EMS-77-023,EMS-97-537,EMS-H40,EMS-H41,SMD-D-012505525,EMS-2605-03,SMD-Q-01405035,SMD-D-012505025,EMS-0005,SMD-M-01354220,SMD-S-008404125,EMS-C40,SMD-M-01701560,SMD-C-01453525,SMD-Q-01482510,EMS-77-082,EMS-77-081,EMS-97-601,EMS-77-072,EMS-97-4380LB,EMS-97-605,EMS-95-833,EMS-77-078,EMS-97-440,EMS-C35,EMS-97-560,SMD-C-015251520,EMS-XX-XXX-AA,SMD-C-008300810,SMD-S-01456025,SMD-8-01454520,SMD-M-01203415,SMD-M-015701225,SMD-Z-008281916,SMD-C-008402015,EMS-97-558,EMS-97-555,SMD-D-01454525,EMS-77-002,EMS-97-438,EMS-97-550,EMS-97-650CC-K3,EMS-97-551
根据环境和机械条件选择最合适屏蔽要求的EMI屏蔽垫片
最适合屏蔽要求的EMI垫片取决于被屏蔽设备的环境和机械考虑因素。此文旨在帮助工程师确定最佳屏蔽效果或接地的产品，其中包括金属厚度，材料类型，镀层，螺栓间距和接口尺寸等机械限制条件。
【产品】Laird镀镍石墨导电橡胶材料，硬度高、导电性好
镀镍石墨是一种新型石墨强化材料，优点是导电性好，耐磨、耐腐蚀，材料的硬度和润滑性都相当不错。本文介绍Laird三款以镀镍石墨颗粒为填充物的导电橡胶产品，型号分别为ECE72、ECE92和ECE95，对应三种市场流行的橡胶材料，硅橡胶、氟硅橡胶和EPDM（三元乙丙橡胶）。ECE72型，硬度高、强度大、弹性低；ECE92型，硬度高、强度小、弹性好；ECE95型，硬度高、弹性好、强度适中。
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