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碳纳米管

碳纳米管产品形态

Product	Form	Typical use
JY series	粉体，纯度 90 – 99%	Conductive additives, composite reinforcement
JCH series	水性导电浆料	储能、水相容涂层
JCN series	NMP 基导电浆料	Battery electrode slurries, solvent-borne systems

Ranges marked “confirmed per grade” are set by reinforcement and resin selection; send us your target specification and we confirm what we can supply.

图片来自我们的产线与库存实拍。色相、织纹密度与表面效果在不同批次间会有细微差异——建议索取样品评估。

Carbon nanotubes (CNT) are the nanoscale member of our product range. Added in small percentages to a polymer matrix, they form a conductive network that a single filler cannot achieve — which is what makes CNT masterbatch the standard solution for static dissipation and conductivity in thermoplastics.

CNT 的价值所在

静电消散（ESD） — electronics housings, trays, conveyor components and packaging where static discharge damages sensitive parts

导电性 — antistatic coatings, EMI shielding materials and conductive components where metal filling is undesirable

力学增强 — modest gains in modulus and, more usefully, improved fracture toughness in brittle matrices

导热性 — heat-spreading in electronics housings and thermal interface materials

Product Forms

Form	What it is	Typical use
CNT powder	Multi-wall or single-wall nanotubes, dry powder	Masterbatch compounding, laboratory and specialty applications
CNT masterbatch	CNTs dispersed in a carrier polymer at controlled loading	Direct compounding into thermoplastics; easier handling than powder
CNT 分散体／浆料	已预分散于树脂或溶剂中的 CNT	Coatings, adhesives, in-mold applications

Loading and Dispersion — the Actual Difficulty

Carbon nanotubes are hard to use for one reason: they bundle. Agglomerates never disperse properly, and they act as stress concentrators that reduce strength instead of improving it. Successful use comes down to three things — a consistent grade, adequate dispersion energy, and a loading chosen for the mechanism you need rather than the highest number possible.

• Match the loading to the target: typical antistatic targets are far lower than typical reinforcement targets
• Assess dispersion by microscopy, not by appearance — a visually uniform compound can still contain agglomerates
• Run a small trial first and measure the property you actually need, not just tensile strength

How to Specify

Tell us the target property (surface resistivity, conductivity, toughness improvement), the base polymer and the processing temperature, and we will recommend the form and loading range to trial. We supply CNT powder and dispersions; masterbatch compounding can be discussed against your resin system.

See also 短切碳纤维 用于宏观尺度增强，以及 碳纤维织物 用于结构增强。