|
HS Code |
387387 |
| Chemical Formula | C |
| Typical Diameter Nm | 0.4-3 |
| Length Um | up to several micrometers |
| Structure Type | single-walled or multi-walled |
| Electrical Conductivity | high |
| Thermal Conductivity W Per Mk | 3500 |
| Tensile Strength Gpa | up to 63 |
| Elastic Modulus Tpa | 1.0 |
| Density G Per Cm3 | 1.3-1.4 |
| Aspect Ratio | very high (up to 1000000:1) |
As an accredited Carbon Nanotube factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Sealed black polyethylene bottle containing 50 grams Carbon Nanotube powder, labeled with chemical name, hazard symbols, lot number, and handling instructions. |
| Container Loading (20′ FCL) | 20′ FCL container loading for Carbon Nanotube ensures secure, moisture-free packing in sealed drums or bags for safe international shipping. |
| Shipping | Carbon Nanotubes are securely packaged in sealed containers to prevent contamination and ensure safe handling. The shipment complies with relevant regulations for nanomaterials, including labeling and documentation. Packages are cushioned and protected against moisture, vibration, and temperature fluctuations during transit, ensuring the material’s integrity upon arrival. Expedited and tracked shipping are available. |
| Storage | **Storage for Carbon Nanotubes:** Carbon nanotubes should be stored in tightly sealed containers, preferably made of materials that prevent moisture and contamination. The containers should be labeled and kept in a cool, dry, well-ventilated area away from direct sunlight, heat sources, and strong oxidizing agents. Proper respiratory protection is advised when handling to avoid inhalation of fine particulates. |
| Shelf Life | Carbon nanotubes have an indefinite shelf life when stored in dry, sealed containers, away from moisture, contaminants, and direct sunlight. |
Competitive Carbon Nanotube prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please call us at +8615365186327 or mail to sales3@liwei-chem.com.
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Tel: +8615365186327
Email: sales3@liwei-chem.com
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Carbon nanotubes stand as one of our most significant achievements in advanced material manufacturing. Over the years, we have seen research move from theory to large-scale industrial production, and every step of the process has shaped our approach to quality and performance. What separates carbon nanotubes from other advanced materials isn't just the hype around their strength or size, but the measurable impact they’ve had on areas ranging from electronics to specialty composites.
At our production facility, every batch of carbon nanotubes represents careful attention to purity, length, and diameter. We don’t simply pour chemicals into reactors and hope for good yields; instead, we monitor synthesis down to the atomic level because customers designing touchscreens, aerospace parts, or conductive polymers rely on us to get it right every time. Mistakes, even those invisible to the naked eye, rip through production lines, causing defects and expensive recalls. By focusing on repeatability, we’ve won the trust of engineers who need full confidence in the materials they specify.
From the outset, we recognized that not all carbon nanotubes serve the same market. Single-wall carbon nanotubes (SWCNTs) have just one layer rolled into a seamless cylinder, often around a nanometer in diameter, and bring unmatched electrical conductivity and mechanical strength. Multi-wall carbon nanotubes (MWCNTs) layer up multiple concentric tubes, offering greater durability in structural applications. Each type starts from similar carbon feedstocks, but minute differences in reaction conditions steer the final product to distinct uses.
Manufacturing single-wall variants pushes our control systems to the limit. Purity levels need to stay above 95%, and process tweaks—down to temperature and gas flow rates—shape the electrical and thermal performance our customers expect. It demands constant investment in analytics and ongoing staff training. Multi-wall variants, on the other hand, let us tailor inner and outer diameters to balance flexibility with durability. This lets product managers from battery manufacturers to 3D printing firms pick the right mix for their designs.
Behind every kilogram shipped stands a mass of data. For a typical batch, customers want tight control on length distribution, from hundreds of nanometers up to several micrometers. Diameter distribution matters for performance. High surface area drives reactivity, particularly for catalyst supports or conductive plastics. Ash content gets checked after each filtering, since leftover metal catalysts can shut down downstream electronics. Each order leaves our gates only after testing for purity, bulk density, tensile strength, and conductivity, documented in clear reports. Our team regularly calibrates our instruments against international reference samples and invites customer audits—we know transparency fuels long-term partnerships.
Over the past decade, we have refined our chemical vapor deposition (CVD) capabilities to deliver industrial-scale volumes without sacrificing the properties that matter. CVD gives the most control: adjusting feedstock composition, reactor temperature, and catalyst particle size lets us nudge the process toward single-wall or multi-wall tubes, minimize unwanted byproducts, and fine-tune tube length. This all sounds simple in a laboratory but ramping up to tons per year brought its own challenges. Impurities slip in easily, reactors clog, and scaling without quality drift took years of innovation.
Our choice to keep all steps in-house means we don’t rely on inconsistent third-party intermediaries. Every part of the system, from purification filters to final drying ovens, has been rebuilt to handle tough quality requirements. During early scaling attempts, we saw firsthand the impact that a minor slip in catalyst dosing had on purity and tube length. These failures cost us time and revenue but forced every member of our team, from operators to PhDs, to focus on the direct connection between process discipline and performance.
Every year, we see new uses for our carbon nanotubes. In composites, engineers add them in small percentages to dramatically raise tensile strength and fatigue resistance. Wind turbine blades and automotive body panels no longer crack easily under repeated stress. Electronics firms rely on their high conductivity and thermal management, building transparent films, coatings, and sensors that outpace traditional materials. Where other carbon-based additives fall short—struggling to disperse evenly or degrading at critical moments—our nanotubes remain stable, giving product designers new degrees of freedom.
Battery firms have turned to carbon nanotubes for their unique conductive networks. By tweaking surface chemistry and choosing precise tube length, we supply powders that let lithium-ion cells charge faster and last longer. Medical device developers have begun adapting biocompatible surface treatments for scaffolds and sensors. We do not send material out for medical applications without exhaustive screening for impurities and post-synthetic residues, since device safety and patient outcomes are on the line.
Carbon black and graphite have long histories as conductive fillers or structural reinforcements. Both offer low cost and supply stability, but neither matches the electrical, thermal, or mechanical performance of properly-synthesized nanotubes. In practice, the main difference lies in the ability to tailor each property with precision. Conventional fillers often lump together, leading to clumps in finished products and unpredictable performance. With carbon nanotubes, our focus on surface functionalization prevents unwanted agglomeration, delivering reinforced plastics or adhesives with smoother processing and enhanced durability.
Compared to other nanomaterials like graphene, carbon nanotubes bring unique properties to 3D architectures. Graphene’s two-dimensional sheets boost electrical properties across surfaces, but our multi-wall tubes can create robust, interconnected networks inside bulk materials. This makes a difference for customers in EMI shielding, flexible circuits, and even targeted drug delivery. Each new development requests careful coordination with supply chain partners and the close involvement of our technical staff—we’ve learned that fast troubleshooting and hands-on support protect everyone’s timelines and budgets.
We understand skepticism remains, particularly from designers who faced quality inconsistencies or price volatility in the past. Early on, inconsistent diameter and purity discouraged some manufacturers after negative trial outcomes. High costs, mainly from specialty catalyst systems and slow batch runs, locked many firms out. We took these criticisms seriously, focused on pushing yields up, and optimized recycling inside our reactors. Costs have dropped steadily as years passed and processes matured. Today, we support recurring production contracts that demand not just quality but consistent pricing month over month.
Dispersion remains a technical hurdle in many industries. Without careful control, carbon nanotubes cluster together, losing much of their benefit in finished formulations. Our R&D group works with customers on real-world processing conditions, performing pilot trials with everything from melt mixing in extruders to in-line sonication for resins. We produce not only raw powder but also masterbatches and pre-dispersed concentrates, building on years of feedback from production lines worldwide. The best advice we give new customers: share as much as possible about processing goals upfront, as success depends on tight alignment between our lab and customer production workflows.
Operating responsibly runs through everything we do. Safety officers oversee each step, from nippled reactor valves to final packaging, and we adhere to the strictest handling procedures for nanopowders. Several years ago, we overhauled our dust control systems, adding custom vacuum filtration and automated loading docks to keep operators safe. Waste streams from tube production get neutralized and tested before landfill or recycling, and we keep careful watch on regulatory developments impacting nanomaterials.
Our training sessions address not only local guidelines but also global expectations for environmental stewardship. We publish annual reports on emissions, water use, and workplace monitoring, and invite outside review of our environmental data. Product stewardship goes beyond compliance: we partner with academic researchers studying impacts from inhalation or long-term usage, sharing our samples freely to support unbiased research. These collaborations help us respond credibly to end users’ questions around safety, spillage, and long-term effects.
Market needs shape our research agenda. Over time, customers have shifted from standard products toward highly customized grades, asking for surface treatments, different tube lengths, or pre-dispersed slurries. We set up technical service teams who don’t just answer phones—they visit sites, speak with engineers at molding presses, and test new developments before full-scale adoption. Customer feedback rewrites our protocols. Once, an automotive supplier identified an issue with nanotube buildup in a specific paint application. Instead of shifting blame, we sent our team to their plant, traced the issue to a subtle impurity, and rebuilt part of our purification line. Our product line grew stronger as a result.
Listening closely means looking for patterns across industries. We noticed growing interest from construction clients aiming to strengthen concrete while preserving workability. By collaborating with their R&D, we adjusted particle size distribution and packaging formats. Today, some of the tallest buildings and longest bridges draw extra resilience from structures enhanced by our nanotubes. What drives us isn’t chasing novelty—it’s solving problems that create real value for the partners who build, repair, or innovate every day.
Tomorrow’s materials will demand finer features and higher performance limits. Whether in lightweight drones, high-capacity supercapacitors, or medical implants, engineers demand better answers to persistent limits like brittleness, low conductivity, or slow charge rates. Our plant invested early in pilot lines for next-generation hybrid nanocarbon systems, tying together the conductivity of carbon nanotubes with the flexibility of other engineered additives. This means electrical grades for thin-film transistors arrive ready to blend, and functionalized tubes for biomedical work reach major researchers directly.
The pattern we see is clear: modern designers want not just products, but technical guidance, rapid response, and openness. We answer with technical bulletins written by our line staff and scientists, not outsourced PR teams. Our development collaborations are grounded in what works reliably, not just in short-run pilot batches but at the multi-ton scale that real industries demand.
From startup days to full-scale deployment, we keep a simple philosophy: talk straight, show our data, and invite customers to see for themselves. At our main site, visiting teams follow the process from raw feedstock to final powder, meeting not just salespeople but chemists, operators, and QC leads. We answer every technical query with supporting evidence. This hands-on approach led to partnerships that lasted through product launches, regulatory changes, and supply chain shocks.
As the market for carbon nanotubes expands, our experience tells us that reliability and open innovation mean more than theoretical properties. It’s the consistent, high-performing batches that let our customers launch new batteries, screens, or composite parts without worrying about hidden flaws. We never stop pushing to lower costs, boost yields, or adapt to new compliance rules. When customers face setbacks, we treat these as opportunities to strengthen—not just our own process, but the entire network of manufacturers, designers, and end-users.
Working with carbon nanotubes changed our perspective on materials science and manufacturing. Success comes not from splashy press releases but from years of quiet investment in reactors, analytics, and teamwork. The models we offer, from single-wall to multi-wall, reflect thousands of hours in discovery and scale-up. Each improvement came from hard-won lessons in process control and in listening closely to our partners' needs. Whether powering the latest electronics or pushing the limits on industrial composites, our team takes pride in knowing we supply materials that drive real advances—not just in labs, but across industries where reliability and performance make all the difference.