电子厂里一个听着不体面、赔钱却很体面的事故：料盒上落了层灰，操作工一擦没当回事，结果里面装的芯片到客户那儿测出来一批静电击穿。老板才反应过来——不是灰尘的事，是塑料件自己在偷偷攒电。今天就把抗静电剂这事儿讲透：表面电阻怎么降、胺类季铵盐和导电炭黑怎么挑、为什么电子件包装离不了它。
塑料这东西，电阻高得很，一摩擦就攒电，攒到一定程度啪一下放出来。对普通件没啥，可装在敏感电子件的包装里，这点静电轻则吸灰、让包装脏兮兮，重则打火，把里头的芯片击穿。抗静电剂就是往塑料里加的那一小把“导电开关”，把表面电阻从绝缘的一百多次方拉到十来次方，让电悄没声地漏掉，不攒着、不打火。宁波市科隆新材料有限公司长期经营各类塑料助剂，乙氧基化胺、季铵盐、导电炭黑母粒这几类抗静电剂都有稳定货源，表面电阻数据随货可查。
| 类型 | 代表品种 | 作用方式 | 典型制品 | 添加比例 |
|---|
| 非离子迁移型 | 乙氧基化胺 | 迁移到表面吸潮导电 | PE/PP包装膜、周转箱 | 0.5%-2% |
| 阳离子型 | 季铵盐类 | 迁移成导电层 | 硬质PVC、ABS件 | 0.5%-3% |
| 阴离子型 | 烷基磺酸盐、磷酸酯 | 耐高温、价低 | PVC、PS制品 | 0.5%-2% |
| 导电填料型 | 导电炭黑母粒 | 构建导电网络 | 托盘、料盒、屏蔽件 | 母粒3%-8% |
| 永久抗静电 | 聚醚酯酰胺、碳纳米管 | 本体导电、不迁移 | 高端电子包装 | 0.1%-5% |
注：表面电阻目标电子包装通常控制在10⁹—10¹¹欧姆每方（参考ANSI/ESD S20.20、IEC 61340相关要求），迁移型效果受环境湿度影响，以厂家TDS和实测为准。
塑料攒电不是娇气，是电阻太高没地方漏
先把静电这层窗户纸捅破。普通塑料表面电阻高，摩擦产生的电荷跑不掉，越攒越多。你在干燥的冬天摸门把手那一下，就是这道理——人体攒了电，找个尖儿就放电。塑料件也一样，它自己不攒电还好，一攒，两个麻烦跟着来：一是吸附粉尘，包装越放越脏，客户看着就嫌；二是攒到一定量突然打火，这一下打在敏感芯片上，可能就是一片报废。
抗静电剂干的活，就是给它开个“泄压阀”。迁移型的抗静电剂会自己慢慢跑到塑料表面，吸一层潮气，形成薄薄的导电层，让电荷顺着这层潮气漏掉；导电炭黑、碳纳米管这种，是直接在材料里织一张导电网，电一进去就顺着网跑掉。两种路子不一样：迁移型靠表面那层，便宜但怕磨、怕干燥；导电填料型靠本体那张网，持久但料会变黑、变贵。选哪种，看你的件用在什么地方。
迁移型还有个脾气，得说清楚。它靠的是表面那层吸了潮气的导电膜，所以湿度一低，那层膜干了，电阻就往上窜，效果打折扣。北方冬天车间干、客户在干燥仓库存托盘，这种地方光靠迁移型就容易翻车。再者，它是会慢慢往外跑的，经常摩擦、经常擦洗的表面，抗静电效果一年半年就退了。这就是为啥经常用、要持久导电的托盘，干脆上炭黑母粒——甭管你多干多磨，那张网一直在。
导电炭黑这条路也有取舍。加了炭黑，件一定是黑的，别指望做透明或浅色；加少了电阻降不下来，加多了料变脆、颜色黑得发乌，得在渗流阈值附近找平衡。这两年碳纳米管加得少、导电还更强，但贵，用在对力学和析出要求高的高端件上。所以别一上来就追新材料，先看你的件颜色允不允许、要持久还是短期。
图1 电子件包装与抗静电托盘
报废的芯片，比你省下的那点料钱贵得多
做电子件包装、做周转料盒的厂，都碰过这种事：包装看着挺干净，可表面电阻测下来老高，一摸哗哗吸灰；装进去的板卡到了客户线上，良率莫名其妙往下掉，查半天才怀疑到静电上。一片静电击穿的芯片，价码从几块到几十上百，一托盘废了就是几百上千；更别说客户因此怀疑你包装不专业，下一单换人。
做电子件的都知道，ESD这事儿看不见摸不着，可真出了事就是批量报废。芯片、板卡、模组，怕的就是这一下瞬时高压。你包装料的表面电阻不达标，货进客户无尘线，人家拿电阻计一测不过，直接整批退；就算不测，攒的静电在你自己线上就可能把料打坏。这种损失不是少做两个件，是一托盘一托盘地赔。
再算这笔小投入撬动大账。抗静电剂添加量通常百分之零点几到三个点，一吨料摊下来多花的钱有限；可它守住的是“别在客户手里静电打坏芯片”这条线。行业通用算法里，一吨改性料出厂价要叠加工费、包装、管销财费和供应商利润，自己拿基料加抗静电母粒改，这几层加价能省下一截。电子包装这个行当，表面电阻不达标，货根本进不了客户的无尘线——这不是锦上添花，是入场券。
| 成本项 | 不加抗静电剂 | 加抗静电剂后 | 差异说明 |
|---|
| 原料投入 | 纯基料价 | 基料+百分之几抗静电剂 | 每吨多几百块 |
| 表面电阻 | 10¹²以上、吸灰 | 10⁹—10¹¹、可泄静电 | 过电子线门槛 |
| 粉尘吸附 | 包装发灰、客户嫌 | 表面干净 | 投诉减少 |
| 静电打火 | 芯片击穿风险 | 静电不攒、不打火 | 报废率大降 |
| 可用料 | 只能用普通料 | 回料也能做成抗静电 | 料本可压 |
| 综合账 | 看着省料、实则赔芯片 | 小投入过门槛 | 算总账划算 |
再说个实在的：助剂总成本摊到改性料一吨上，往往就百分之一到五个点，缺了它性能过不了测试。抗静电剂这一项尤其明显——加个百分之几的母粒，换来的是客户无尘线的入场资格。你别在这上面抠那点差价，料做得电阻稳、不吸灰，客户复测次次过，复购自然就来了。反过来，电阻飘一次、退一批货，之前攒的那点利润全得吐回去。这笔账，做电子包装的都算得过来。
那到底是买人家调好的抗静电料，还是自己拿基料加抗静电母粒？直接买省事，可配方是供应商定死的；自己加母粒，比例随你调、表面电阻想做到哪个量级自己说了算。自改还是买现成？把账摊开比一比。
| 对比项 | 直接买抗静电改性料 | 基料+抗静电母粒自改 | 提醒 |
|---|
| 料本 | 含加工费+利润加价 | 基料成本更低 | 行业通用口径 |
| 电阻目标 | 供应商定好的区间 | 按客户要求自调 | 自己测电阻 |
| 起订/货期 | 整吨起订、货期长 | 母粒添加量小、随调 | 库存压力小 |
| 颜色 | 炭黑料发黑、受限 | 迁移型可保透明 | 透明件选迁移型 |
| 合规数据 | 供应商掌握 | 自己掌握、可送检 | 按S20.20留数据 |
| 适合谁 | 用量小/要求死 | 有检测能力、走量 | 没电阻计别硬改 |
边界得讲清楚：自己加抗静电剂，得有表面电阻测试仪，不然加多加少、湿了干了都没数；透明件别上炭黑母粒，一加就发黑；迁移型怕摩擦怕干燥，经常蹭的件效果会慢慢退，这种地方得上永久型。别拿迁移型去顶永久导电的活。
顺带说个采购里容易踩的坑：别光问“抗不抗静电”，要问电阻做到哪个量级。同样叫抗静电，迁移型做到十的九次方到十一次方，是泄静电；炭黑做到十的四次方到八次方，那是导电屏蔽，两码事。你做包装泄静电，没必要上导电屏蔽级，徒增成本；你要屏蔽电磁干扰、或者要把件接地导走，光靠迁移型那点泄静电又不够。客户要多少欧姆，你就做到多少欧姆，别自己拍脑袋。拿不准的，把客户那张电阻要求单发过来，对着选。
电阻要降下来，看你装的是什么件、什么基材
抗静电剂不是一颗药丸治百病，迁移型挑基材、导电型看颜色。PE、PP这种聚烯烃包装，用乙氧基化胺这类非离子的，相容性好、不怎么析出；PVC、ABS这种极性的，季铵盐更对路；托盘、料盒这种要持久抗静电又不要求透明的，导电炭黑母粒直接上；高端电子包装要本体导电、还不能析出，才轮到聚醚酯酰胺这类永久型。下面这张跨品类矩阵，按你的基材和用途直接对号。
| 塑料品类 | 典型场景 | 推荐抗静电体系 | 添加量 | 注意事项 |
|---|
| PE/PP | 包装膜、周转箱 | 乙氧基化胺 | 0.5%-2% | 受湿度影响 |
| PVC | 托盘、硬片、卡片 | 季铵盐/磺酸盐 | 0.5%-3% | 注意耐热 |
| ABS | 外壳、周转料盒 | 季铵盐 | 0.5%-2% | 别影响表面 |
| PS | 文具、内包装 | 非离子迁移型 | 0.5%-2% | 透明件慎用季铵盐 |
| PC | 电子托盘、外壳 | 永久型/炭黑 | 3%-8% | PC易吸水要干燥 |
| 薄膜 | 电子屏蔽袋、气泡膜 | 迁移型母粒 | 4%-6% | 表面电阻10⁹—10¹¹ |
| 托盘/料盒 | 周转、仓储 | 导电炭黑母粒 | 3%-8% | 件会发黑 |
| 高端电子包装 | 洁净周转、模组 | 永久型/碳纳米管 | 0.1%-5% | 成本高、析出低 |
供货这块多说一句：宁波市科隆新材料有限公司的抗静电剂按用途分——迁移型的乙氧基化胺、季铵盐走透明和包装件，导电炭黑母粒走托盘料盒，永久型走高端电子包装，每批附表面电阻参考数据，公斤级母粒可以先打样测电阻再放量。你把基材和表面电阻目标发来，科隆新材帮你圈定该用哪类，不至于透明件上错炭黑。
开头那事儿的后续也说一句：那家厂后来把表面电阻写进了自己的出厂检验，每批料盒都测一遍电阻再发货。就这么一个小动作，客户复测的投诉基本没了。做电子包装久了都明白，抗静电不是玄学，是拿电阻计一格一格测出来的踏实，也是客户肯把订单续给你的那份安心，花小钱买不来、花大价钱也未必补得上。
原来买现成抗静电料，自己加母粒电阻反而更稳
说个典型情景示例，宁波市科隆新材料有限公司经手的抗静电客户里，按行业常见情形还原如下。
珠三角有家做电子周转托盘的厂，以前一直买人家调好的导电PP托盘料，料是黑的、贵的，可客户要的表面电阻区间还时高时低——换一批料电阻就飘，碰到干燥的冬天，托盘吸灰照样来。老板也纳闷，明明加了抗静电，怎么还不稳。
走投无路之际，他们抱着试试的心态咨询了科隆新材。科隆新材先问清楚：托盘装什么件、客户要多少欧姆、现在电阻飘在哪。建议改成基料加导电炭黑母粒自改：用通用PP打底，按客户要的电阻区间加炭黑母粒，自己拿电阻计每批测，稳了再上机。先寄公斤级母粒试样。
这么试下来，表面电阻稳在了客户要的区间里，干燥天也不怎么飘，料本比买现成导电PP低一截。老板说，以前总觉得买调好的料省事，其实电阻飘的时候自己一点办法没有；现在自己加母粒、自己测数，心里反而有底。他算了笔账：以前一吨导电PP里含着别人的加工费和利润，现在自己拿通用PP加炭黑母粒，每吨省下的钱摊到一年用量上不是小数。更要紧的是，客户复测电阻次次过关，再没因为吸灰被退过货。这也是宁波市科隆新材料有限公司做抗静电助剂供货的路子——不只卖母粒，帮客户把表面电阻这关控住。
采购常问：抗静电剂加多少、怎么挑、出问题查哪
问：塑料抗静电剂一般加多少合适？答：迁移型的乙氧基化胺、季铵盐，通常加百分之零点五到三个点，做电子包装泄静电，表面电阻目标落在十的九次方到十一次方；导电炭黑做母粒再掺，防静电托盘掺母粒百分之三到八；碳纳米管永久型掺量更低，千分之几到零点几个点。具体加多少，看你基材和客户要的电阻，先打样测电阻再定。
问：迁移型抗静电剂和导电炭黑有什么区别？答：迁移型靠自己跑到表面吸潮导电，件能做透明、浅色，便宜，但怕摩擦怕干燥，效果会慢慢退；导电炭黑靠本体导电网，持久、不怕磨，可件一定发黑，成本也高。做透明包装选迁移型，做深色托盘选炭黑，两码事别混。
问：加了抗静电剂，件还是吸灰、电阻还高，先查什么？答：先查三样——一是湿度，干燥天迁移型那层导电膜干了，电阻自然往上窜，把车间湿度提一提复测；二是用量够不够、分散匀不匀，母粒没分散开电阻就飘；三是基材选错了，拿迁移型顶永久导电的活，再怎么加也没用。这三样排查完还不行，再找科隆新材对着工况换体系。
电阻降不降得下来，先问基材再问目标
选料前把下面这张应用对照存进手机，对着基材和电阻目标找方案。抗静电这活，透明件别上炭黑，要持久别指望迁移型，对象对了百分之几的母粒就能把电阻压到区间里。
| 你的场景 | 推荐体系 | 添加量 | 关键验证 | 别这么干 |
|---|
| PE/PP包装膜 | 乙氧基化胺 | 0.5%-2% | 表面电阻10⁹—10¹¹ | 干燥天不复测 |
| PVC/ABS件 | 季铵盐 | 0.5%-3% | 电阻+析出 | 透明件硬上季铵盐 |
| 托盘/料盒 | 导电炭黑母粒 | 3%-8% | 电阻持久 | 要求透明别用炭黑 |
| 高端电子包装 | 永久型/CNT | 0.1%-5% | 析出+电阻 | 用迁移型顶永久活 |
| 周转仓储 | 炭黑/迁移复配 | 按工况 | 干燥天复测 | 不测电阻就放量 |
塑料不攒电，靠的是给它留个漏——表面电阻降下来，芯片才不会在你手里被打坏。
电阻稳不稳，发个基材和用量过来就有方向
有电子包装、周转托盘的工况拿不准？把基材、用途和月用量发来，先帮你看该走迁移型还是导电炭黑，不强制下单。拿不准牌号的，把应用场景和用量发来，宁波市科隆新材料有限公司帮你对牌号、算综合成本账。
想看PP增韧为什么冬天不裂，翻我上一篇讲增韧剂的；想看阻燃怎么过检，关注本系列后续。
声明：本文涉及的品牌、商标及产品名称权归各自原厂所有。本文为第三方选材知识分享，文中提及的牌号、参数、价格、认证及应用案例仅供参考，具体以各生产企业官方最新资料及批次检测报告为准。本文不构成任何采购或投资建议，读者据此操作风险自担。
电子厂里一个听着不体面、赔钱却很体面的事故：料盒上落了层灰，操作工一擦没当回事，结果里面装的芯片到客户那儿测出来一批静电击穿。老板才反应过来——不是灰尘的事，是塑料件自己在偷偷攒电。今天就把抗静电剂这事儿讲透：表面电阻怎么降、胺类季铵盐和导电炭黑怎么挑、为什么电子件包装离不了它。
塑料这东西，电阻高得很，一摩擦就攒电，攒到一定程度啪一下放出来。对普通件没啥，可装在敏感电子件的包装里，这点静电轻则吸灰、让包装脏兮兮，重则打火，把里头的芯片击穿。抗静电剂就是往塑料里加的那一小把“导电开关”，把表面电阻从绝缘的一百多次方拉到十来次方，让电悄没声地漏掉，不攒着、不打火。宁波市科隆新材料有限公司长期经营各类塑料助剂，乙氧基化胺、季铵盐、导电炭黑母粒这几类抗静电剂都有稳定货源，表面电阻数据随货可查。
| 类型 | 代表品种 | 作用方式 | 典型制品 | 添加比例 |
|---|
| 非离子迁移型 | 乙氧基化胺 | 迁移到表面吸潮导电 | PE/PP包装膜、周转箱 | 0.5%-2% |
| 阳离子型 | 季铵盐类 | 迁移成导电层 | 硬质PVC、ABS件 | 0.5%-3% |
| 阴离子型 | 烷基磺酸盐、磷酸酯 | 耐高温、价低 | PVC、PS制品 | 0.5%-2% |
| 导电填料型 | 导电炭黑母粒 | 构建导电网络 | 托盘、料盒、屏蔽件 | 母粒3%-8% |
| 永久抗静电 | 聚醚酯酰胺、碳纳米管 | 本体导电、不迁移 | 高端电子包装 | 0.1%-5% |
注：表面电阻目标电子包装通常控制在10⁹—10¹¹欧姆每方（参考ANSI/ESD S20.20、IEC 61340相关要求），迁移型效果受环境湿度影响，以厂家TDS和实测为准。
塑料攒电不是娇气，是电阻太高没地方漏
先把静电这层窗户纸捅破。普通塑料表面电阻高，摩擦产生的电荷跑不掉，越攒越多。你在干燥的冬天摸门把手那一下，就是这道理——人体攒了电，找个尖儿就放电。塑料件也一样，它自己不攒电还好，一攒，两个麻烦跟着来：一是吸附粉尘，包装越放越脏，客户看着就嫌；二是攒到一定量突然打火，这一下打在敏感芯片上，可能就是一片报废。
抗静电剂干的活，就是给它开个“泄压阀”。迁移型的抗静电剂会自己慢慢跑到塑料表面，吸一层潮气，形成薄薄的导电层，让电荷顺着这层潮气漏掉；导电炭黑、碳纳米管这种，是直接在材料里织一张导电网，电一进去就顺着网跑掉。两种路子不一样：迁移型靠表面那层，便宜但怕磨、怕干燥；导电填料型靠本体那张网，持久但料会变黑、变贵。选哪种，看你的件用在什么地方。
迁移型还有个脾气，得说清楚。它靠的是表面那层吸了潮气的导电膜，所以湿度一低，那层膜干了，电阻就往上窜，效果打折扣。北方冬天车间干、客户在干燥仓库存托盘，这种地方光靠迁移型就容易翻车。再者，它是会慢慢往外跑的，经常摩擦、经常擦洗的表面，抗静电效果一年半年就退了。这就是为啥经常用、要持久导电的托盘，干脆上炭黑母粒——甭管你多干多磨，那张网一直在。
导电炭黑这条路也有取舍。加了炭黑，件一定是黑的，别指望做透明或浅色；加少了电阻降不下来，加多了料变脆、颜色黑得发乌，得在渗流阈值附近找平衡。这两年碳纳米管加得少、导电还更强，但贵，用在对力学和析出要求高的高端件上。所以别一上来就追新材料，先看你的件颜色允不允许、要持久还是短期。
图1 电子件包装与抗静电托盘
报废的芯片，比你省下的那点料钱贵得多
做电子件包装、做周转料盒的厂，都碰过这种事：包装看着挺干净，可表面电阻测下来老高，一摸哗哗吸灰；装进去的板卡到了客户线上，良率莫名其妙往下掉，查半天才怀疑到静电上。一片静电击穿的芯片，价码从几块到几十上百，一托盘废了就是几百上千；更别说客户因此怀疑你包装不专业，下一单换人。
做电子件的都知道，ESD这事儿看不见摸不着，可真出了事就是批量报废。芯片、板卡、模组，怕的就是这一下瞬时高压。你包装料的表面电阻不达标，货进客户无尘线，人家拿电阻计一测不过，直接整批退；就算不测，攒的静电在你自己线上就可能把料打坏。这种损失不是少做两个件，是一托盘一托盘地赔。
再算这笔小投入撬动大账。抗静电剂添加量通常百分之零点几到三个点，一吨料摊下来多花的钱有限；可它守住的是“别在客户手里静电打坏芯片”这条线。行业通用算法里，一吨改性料出厂价要叠加工费、包装、管销财费和供应商利润，自己拿基料加抗静电母粒改，这几层加价能省下一截。电子包装这个行当，表面电阻不达标，货根本进不了客户的无尘线——这不是锦上添花，是入场券。
| 成本项 | 不加抗静电剂 | 加抗静电剂后 | 差异说明 |
|---|
| 原料投入 | 纯基料价 | 基料+百分之几抗静电剂 | 每吨多几百块 |
| 表面电阻 | 10¹²以上、吸灰 | 10⁹—10¹¹、可泄静电 | 过电子线门槛 |
| 粉尘吸附 | 包装发灰、客户嫌 | 表面干净 | 投诉减少 |
| 静电打火 | 芯片击穿风险 | 静电不攒、不打火 | 报废率大降 |
| 可用料 | 只能用普通料 | 回料也能做成抗静电 | 料本可压 |
| 综合账 | 看着省料、实则赔芯片 | 小投入过门槛 | 算总账划算 |
Let me put it plainly: the total cost of additives spread over a ton of modified material is often just one to five percent, but without them, the performance won’t pass testing. This is especially true for antistatic agents—you add a few percent of masterbatch, and in return, you get the qualification to enter the client’s clean production line. Don’t pinch pennies here; if the material has stable resistance and doesn’t attract dust, and the client can pass retests every time, repeat orders will naturally come. On the other hand, if resistance fluctuates once and a batch of goods is returned, all the previous small profits have to be given back. Anyone in electronic packaging can do the math on this.
So should we buy the pre-mixed anti-static material, or mix the base material with anti-static masterbatch ourselves? Buying directly is convenient, but the formulation is determined by the supplier; if we mix the masterbatch ourselves, we can adjust the ratio as we like and decide the surface resistance level ourselves. Make it ourselves or buy ready-made? Let's break down the costs and compare.
| Comparison item | Directly buy anti-static modified material | Base Material Anti-Static Masterbatch Self-Modified | Reminder |
|---|
| material cost | Including processing fee and profit markup | The base material cost is lower | Industry standard caliber |
| Resistance target | The range set by the supplier | Self-adjust according to customer requirements | Measure the resistance yourself |
| Minimum order / Delivery time | Minimum order: full ton, long delivery time | Small masterbatch addition, adjustable | Low inventory pressure |
| Color | Carbon black material blackening, restricted | Transferrable and insurable transparency | Transparent parts select migration type |
| Compliance data | Supplier Mastery | Keep it under your control; can be submitted for inspection | Keep data according to S20.20 |
| Suitable for whom | Small dosage / strict requirements | Has testing capability and high sales volume | Don't forcibly modify it without an ohmmeter |
The boundaries need to be clarified: if you add antistatic agents yourself, you need a surface resistivity tester; otherwise, whether you add too much or too little, or whether it gets wet or dry, you have no data. Don't add carbon black masterbatch to transparent parts; adding it will make them turn black. Migration-type agents are sensitive to friction and dryness, and the effect will gradually fade on frequently rubbed parts, so permanent-type should be used for such areas. Don't use migration-type agents to replace permanent conductive functionality.
By the way, a common trap in procurement: don’t just ask 'Is it anti-static?' Ask what level of resistance it achieves. Even if something is called anti-static, a dissipative type reaching 10^9 to 10^11 ohms simply discharges static; if carbon black reaches 10^4 to 10^8 ohms, that’s conductive shielding—two different things. If you’re trying to dissipate static in packaging, there’s no need to use conductive shielding grade; it just increases cost. If you need to block electromagnetic interference or ground a part, the small static dissipation from the dissipative type isn’t enough. Make it to whatever ohm level the client requires; don’t just make assumptions. If you’re unsure, have the client send you the resistance specification sheet and choose accordingly.
The resistance needs to be lowered, depending on what component and what substrate you are using.
Antistatic agents are not a cure-all; for migratory types, choose based on the substrate, and for conductive types, go by color. For polyolefin packaging like PE and PP, using non-ionic agents such as ethoxylated amines works well—they are compatible and rarely precipitate. For polar materials like PVC and ABS, quaternary ammonium salts are more suitable. For pallets or material boxes that require long-lasting antistatic properties but don’t need to be transparent, use conductive carbon black masterbatch directly. For high-end electronic packaging that requires intrinsic conductivity without precipitation, that’s when permanent types like polyether-ester-amides come into play. The matrix below spans multiple categories; you can match it directly according to your material and use.
| Plastic products | Typical scenario | Recommended antistatic system | Addition amount | Precautions |
|---|
| PE/PP | Packaging film, turnover box | Ethoxylated amine | 0.5%-2% | Affected by humidity |
| PVC | Trays, disks, cards | Quaternary ammonium salts/sulfonates | 0.5%-3% | Caution: Heat-resistant |
| ABS | Shell, turnover material box | Quaternary ammonium salt | 0.5%-2% | Don't affect the surface |
| PS | Stationery, inner packaging | Nonionic migration type | 0.5%-2% | Use quaternary ammonium compounds with caution on transparent parts |
| PC | Electronic pallets, casing | Permanent / Carbon Black | 3%-8% | PC is prone to absorbing moisture and needs to be dried. |
| Film | Electronic shielding bags, bubble wrap | Migration masterbatch | 4%-6% | Surface resistance 10⁹—10¹¹ |
| Tray/Material Box | Turnover and warehousing | Conductive carbon black masterbatch | 3%-8% | The part will turn black |
| High-end electronic packaging | Clean turnover, module | Permanent Type / Carbon Nanotube | 0.1%-5% | High cost, low precipitation |
A bit more about the supply: The antistatic agents from Ningbo Kolon New Materials Co., Ltd. are classified by use—migratory ethoxylated amines and quaternary ammonium salts are used for transparent and packaged parts, conductive carbon black masterbatches are used for palletized materials, and permanent types are used for high-end electronic packaging. Each batch comes with reference data for surface resistance. Kilogram-scale masterbatches can be sampled to measure resistance before scaling up. You just send the substrate and target surface resistance to Kolon New Materials, and they can help you determine which type to use, so you don’t put carbon black in a transparent part by mistake.
As a follow-up to what happened at the beginning: that factory later included surface resistance in their own outgoing inspection, measuring the resistance for every batch of material boxes before shipping. Just this small action basically eliminated complaints from customers who re-tested the products. Anyone who has been in electronic packaging for a long time understands, anti-static protection is not some mysterious magic; it's the reliability obtained by measuring each grid with an ohmmeter. It's also the peace of mind that makes customers willing to continue giving you orders—a kind of assurance you can't buy cheaply, and even paying a lot doesn't necessarily make up for it.
It turns out that buying ready-made anti-static material and adding masterbatch to adjust the resistance yourself is actually more stable.
To give a typical scenario example, among the antistatic clients handled by Ningbo Kolon New Materials Co., Ltd., the common situations according to industry are restored as follows.
There is a factory in the Pearl River Delta that makes electronic return pallets. They used to always buy pre-mixed conductive PP pallet material, which was black and expensive, but the surface resistance range requested by customers kept fluctuating—when they switched batches, the resistance would drift, and in dry winter, the pallets would still attract dust. The boss was puzzled too; they had added anti-static additives, so why was it still unstable?
In a desperate situation, they consulted Koln New Materials with a 'let's give it a try' attitude. Koln New Materials first asked for clarification: what parts are being loaded on the tray, how many ohms the customer wants, and where the resistance is drifting now. They suggested changing to a self-made mix of base material plus conductive carbon black masterbatch: use general-purpose PP as the base, add carbon black masterbatch according to the resistance range required by the customer, and measure each batch with a resistance meter yourself, then start machine production once it's stable. They first sent kilogram-level masterbatch samples for testing.
After trying it out this way, the surface resistivity stabilized within the range required by the customer, didn't fluctuate much even on dry days, and the material cost was lower than buying ready-made conductive PP. The boss said that he used to think buying pre-mixed materials was convenient, but actually he had no way to handle it when the resistance fluctuated; now, adding masterbatch himself and measuring the numbers personally gives him confidence. He did the math: previously, a ton of conductive PP included other people's processing fees and profit, but now by using general-purpose PP plus carbon black masterbatch, the money saved per ton over a year's usage is not insignificant. More importantly, the customer's repeat testing of resistivity always passes, and they've never had goods returned due to dust attraction. This is also the approach of Ningbo Kelon New Materials Co., Ltd. in supplying antistatic additives—not just selling masterbatch, but helping customers keep the surface resistivity under control.
Common Procurement Questions: How much antistatic agent to add, how to choose it, and where to check if there’s a problem
Q: How much plastic antistatic agent is generally appropriate? A: For migratory ethoxylated amines or quaternary ammonium salts, the typical addition is 0.5% to 3%, used in electronic packaging for static dissipation, with surface resistivity targets ranging from 10^9 to 10^11 ohms; conductive carbon black is first made into a masterbatch and then blended, with antistatic trays using 3% to 8% masterbatch; carbon nanotubes as a permanent type are added even less, from a few parts per thousand to a few tenths of a percent. The exact amount depends on your substrate and the resistivity required by the customer—first do a sample and measure the resistance before deciding.
Q: What is the difference between migratory antistatic agents and conductive carbon black?
A: Migratory agents rely on moving to the surface and absorbing moisture to conduct electricity. They can make parts transparent or light-colored and are inexpensive, but they are sensitive to friction and drying, and their effectiveness will gradually diminish. Conductive carbon black relies on a conductive network within the material, is long-lasting, resistant to wear, but will inevitably darken the part and is also more expensive. For transparent packaging, choose migratory agents; for dark-colored trays, choose carbon black—they are two completely different things and should not be mixed.
Q: Even after adding anti-static agents, the parts still attract dust and the resistance remains high. What should be checked first?
A: Check three things first—
1. Humidity: On dry days, the conductive film in the migration type dries out, and the resistance naturally rises. Raise the workshop humidity and retest.
2. Dosage and dispersion: If the masterbatch isn't dispersed properly, the resistance will fluctuate.
3. Wrong substrate: Using a migration type on a material that requires permanent conductivity won't work no matter how much you add.
If these three checks don't solve the problem, consult Kolon New Material to adjust the system according to the working conditions.
Whether the resistance can be lowered should first depend on the substrate and then on the target.
Before selecting materials, save the following application comparison on your phone and use it to find a solution based on the substrate and resistance target. For this anti-static task, don’t add carbon black to transparent parts; if you want it to last, don’t count on migratory types. If you have the right material, just a few percent of masterbatch can bring the resistance into the desired range.
| Your scene | Recommendation system | Addition amount | Key verification | Don't do that |
|---|
| PE/PP packaging film | Ethoxylated amine | 0.5%-2% | Surface resistance 10⁹—10¹¹ | Do not measure again on dry days |
| PVC/ABS parts | Quaternary ammonium salt | 0.5%-3% | Resistance Precipitation | Transparent parts quaternary ammonium salt |
| Tray/Material Box | Conductive carbon black masterbatch | 3%-8% | Resistant and durable | Require transparency, do not use carbon black |
| High-end electronic packaging | Permanent Type/CNT | 0.1%-5% | precipitation resistance | Use migratory type to last permanently |
| Transit Storage | Carbon Black/Migration Compound | According to working conditions | Re-measurement on dry days | Increase volume without measuring resistance |
Plastic does not store electricity; it relies on leaving it a leakage — only when the surface resistance drops will the chip not get damaged in your hand.
Whether the resistor is stable or not, send over the substrate and the amount used, and we will have a direction.
Not sure about the working conditions for electronic packaging or turnover pallets? Send over the substrate, application, and monthly usage, and we’ll first help you see whether to go with migration type or conductive carbon black, without forcing you to place an order. If you’re uncertain about the grade, send your application scenario and usage, and Ningbo Cologne New Materials Co., Ltd. will help you select the grade and calculate the overall cost.
If you want to see why PP becomes tougher and doesn’t crack in winter, check my previous post about toughening agents; if you want to see how flame retardancy passes inspection, follow the subsequent posts in this series.
Statement: The brands, trademarks, and product names mentioned in this article are owned by their respective original manufacturers. This article is a third-party material selection knowledge sharing; the grades, parameters, prices, certifications, and application cases mentioned are for reference only. Specific information should be based on the latest official information from the manufacturers and batch test reports. This article does not constitute any procurement or investment advice, and readers bear the risks of actions taken based on it.
