SWCNT Slurry – High-Conductivity Single-Walled Carbon Nanotube Dispersion for ESD Plastics, Coatings and Battery Materials

SWCNT slurry is a high-conductivity, pre-dispersed formulation of single-walled carbon nanotubes. It provides fast, uniform dispersion in plastics, coatings and battery materials, enabling ultra-low loading, stable resistivity and clean processing in water, NMP or ethanol.

Introduction

Our SWCNT slurry is formulated using high-aspect-ratio single-walled carbon nanotubes (eDIPS process). Through proprietary dispersion technology, the CNT network remains stable and uniform in water, NMP, ethanol and mixed systems. It is designed for ESD plastics, conductive coatings, printed electronics and battery electrode additives.

Key Features

• Excellent dispersibility in water, NMP and ethanol
• Long-aspect-ratio SWCNTs preserved during dispersion
• 5–10× lower loading vs. carbon black for same resistivity
• Compatible with PC/ABS, PA, PBT, TPU, PU, epoxy and coatings
• Stable electrical performance and uniform percolation
• Available in multiple concentrations (0.05–0.4 wt%)

Applications

• ESD & antistatic plastics
• Conductive and shielding coatings
• Printed electronics and conductive inks
• Lithium-ion battery electrodes
• Transparent and semi-transparent conductive films

Product Grades

Grade	CNT Type	Solvent	Concentration
SWCNT-A	EC1.5-P	Water	0.1–0.4 wt%
SWCNT-B	EC2.0-P	NMP	0.05–0.3 wt%

Comparison vs Carbon Black

Property	SWCNT Slurry	Carbon Black
Typical Loading	0.02–0.1%	1–5%
Color Impact	Low	High (blackening)
Conductive Network	Stable at low dosage	Requires high loading
Processing	Easy (pre-dispersed)	Difficult (powder agglomeration)

Technical FAQ

1. What is SWCNT slurry?

A ready-to-use dispersion of single-walled carbon nanotubes for plastics, coatings and battery applications.

2. Why is it better than CNT powder?

Pre-dispersed slurry avoids agglomeration, improves consistency and reduces mixing time.

3. What is the typical dosage?

ESD plastics: 0.02–0.1% depending on resin and resistivity target.

4. What solvents are available?

Water, NMP, ethanol and customized blends.

5. Is it compatible with PC/ABS and PA?

Yes. It performs well in PC/ABS, PA6, PA66, PBT, TPU, PU and epoxy systems.

Global Supply & Support

Hunan Kela Materials provides global supply of SWCNT slurry to customers in the U.S., Europe, Korea and Southeast Asia. Technical support, customized formulations and sampling are available.

Why Choose Kela

• High-aspect-ratio SWCNT production and dispersion capability
• 1000 MT/year CNT slurry manufacturing capacity
• Fast lead time and consistent global supply
• Technical customization for plastics, coatings and batteries

Copper chromite (CuCr₂O₄) catalyst grade is a copper–chromium mixed oxide supplied for use as an active catalytic component or precursor in industrial hydrogenation and reduction systems.

This material is not a finished catalyst. It is intended for formulation with supports, binders, and shaping processes, followed by controlled reduction activation (typically hydrogen) to generate the catalytically active Cu–Cr surface.

Typical applications include aldehyde-to-alcohol hydrogenation, ester hydrogenation, and Cu–Cr based catalytic systems where thermal stability, controlled reducibility, and mechanical robustness are required.

<p><strong>Purpose:</strong> This page documents where laser-curable <em>wood adhesive systems</em> are industrially viable today and how formulation and process design can support moisture resistance aligned with <strong>EN 204 D4</strong>. It focuses on sensitizing additives used by formulators to design laser-assisted curing systems. It does <strong>not</strong> describe finished adhesives and does <strong>not</strong> offer adhesive products for sale.</p> <p> LASERSense™ LASER sensitizing additives are developed by Kela Materials.</p> <h2>Why wood and engineered timber are different</h2> <p>Wood and engineered timber assemblies commonly require <strong>thick bond lines</strong>, involve porous substrates, and exhibit strong optical scattering. These factors make curing less predictable: UV/visible exposure may not develop conversion through the full adhesive thickness, and oven-based processes can increase energy cost and limit cycle time.</p> <h2>Where NIR-assisted curing fits</h2> <p>NIR-assisted curing is relevant when a formulator needs rapid, localized cure development despite <strong>limited optical penetration</strong> (opacity, fillers, scattering, substrate variability). A sensitizing additive can <strong>enable</strong> controlled in-layer energy conversion under near-infrared irradiation, helping the system reach practical cure development across thick bond lines.</p> <h2>Safe technical mechanism statement (system-level)</h2> <p>Under NIR laser irradiation, this sensitizing additive may undergo <strong>certain kind of reduction</strong> alongside <strong>photothermal effects</strong>. These effects can lower the effective activation barrier of the formulation’s existing polymerization or crosslinking pathway, supporting cure development through thick adhesive layers. In this application class, curing does not rely on UV penetration, but can be achieved via <strong>NIR-assisted mechanisms</strong> depending on formulation and process conditions.</p> <h2>What this page is / is not</h2> <ul> <li><strong>Is:</strong> A formulator-facing application page for designing laser-assisted curing in wood and engineered timber adhesive systems.</li> <li><strong>Is not:</strong> A finished adhesive product page. This page does not sell adhesives.</li> </ul> <h2>Validated application link</h2> <p><strong>Validated application:</strong> wood and engineered timber systems (EN 204 D4 anchor).</p>

PB28 Cobalt Blue is a high-performance inorganic blue pigment based on a cobalt aluminate spinel structure. It is engineered for applications requiring high thermal stability, chemical resistance, and long-term color durability, including plastics, industrial coatings, ceramics, glass, and ceramic ink systems.

Industry Challenges in High-Temperature and Ceramic Ink Applications

In high-temperature plastics, industrial coatings, and ceramic ink systems, pigment stability is a critical performance factor. Many conventional blue pigments suffer from thermal degradation, chemical instability, or color drift during processing or long-term service.

Why Conventional Blue Pigments Fail

Organic blue pigments typically degrade at processing temperatures above 250–300°C, limiting their use in engineering plastics and ceramic-related systems. Some inorganic alternatives lack sufficient chemical resistance or color stability under acidic, alkaline, or outdoor exposure conditions, leading to fading or surface defects.

PB28 Cobalt Blue Pigment as a Material-Level Solution

PB28 Cobalt Blue is based on a cobalt aluminate spinel crystal structure, which provides intrinsic thermal stability and chemical inertness. As an inorganic pigment, PB28 maintains consistent color performance under high-temperature processing and harsh chemical environments, making it suitable for demanding industrial and ceramic applications.

Key Performance Advantages

• Excellent thermal stability for processing temperatures above 300°C
• Strong resistance to acids, alkalis, and organic solvents
• Outstanding weather resistance for outdoor and architectural use
• Stable spinel crystal structure ensures long-term color consistency

PB28 for Ceramic Ink and Fine-Dispersion Systems

For ceramic ink and fine-coloration systems, PB28 Cobalt Blue can be supplied with controlled particle size distributions suitable for sub-micron dispersion. This enables stable ink formulation, reduced sedimentation risk, and smooth printing or coating performance without relying on nano-grade classification.

Typical Application Scenarios

• High-temperature industrial and architectural coatings
• Plastic masterbatch and engineering plastics requiring color stability
• PVC, UPVC, and outdoor polymer products exposed to UV and chemicals
• Ceramic inks, ceramic decoration, enamel, and glass coloration

When to Choose PB28 Cobalt Blue

PB28 Cobalt Blue is recommended when long-term color stability, chemical resistance, and high-temperature performance are required. It is particularly suitable for applications where organic pigments or low-grade inorganic blues fail to meet durability or processing demands.

Technical Support and Application Guidance

Our technical team provides formulation guidance, pigment selection support, and application-specific recommendations for plastics, coatings, and ceramic systems.

LaserMark-C™ is a laser-responsive functional additive designed to generate neutral gray contrast markings on engineering plastics. It provides balanced readability across a wide range of polymer colors and absorption levels, offering a versatile laser marking solution without relying on pigment coloration or surface foaming.

LaserMark-C™ – Laser-Responsive Additive for Neutral Gray Marking on Engineering Plastics

LaserMark-C™ is a versatile laser marking additive that enables stable, neutral gray contrast markings on engineering plastics. It is designed for applications where neither dark-on-light nor light-on-dark marking is optimal, delivering consistent readability across mixed-color or medium-absorption substrates.

Kela Material presents Cerium Orange - One of the Cerium-Based Inorganic Pigment Series The main component of Kela cerium-based inorganic pigments is cerium sulfide. Cerium sulfide (Ce₂S₃) has a chemical composition approximating Ce₂S₃ and forms orthorhombic crystals. It is insoluble in water and strong alkaline solutions but readily dissolves in acids, releasing hydrogen sulfide gas. Under inert gas and reducing atmospheres, it maintains chemical stability up to 1500°C, while in oxidizing atmospheres it remains stable up to 350°C. Color Range and Properties The Kela Cerium Red cerium-based inorganic pigment series covers a color spectrum from deep red to orange-yellow. Cerium Red is a soft crystalline phase material that does not damage the structure of glass fibers in plastics and can actually enhance the mechanical properties of glass fibers. Key Advantages Non-toxic: Safe for use and complies with EU export standards and related national safety, health, and environmental regulations Strong covering power: Excellent opacity and color strength Good thermal stability: Maintains performance at high temperatures Environmentally friendly: Serves as an excellent substitute for toxic cadmium sulfide-based or heavy metal-based inorganic pigments Applications As a new type of green, environmentally friendly pigment, Cerium Red's high temperature resistance makes it widely applicable in: Plastics industry Rubber industry Other applications requiring heat-resistant, non-toxic colorants This innovative pigment represents a significant advancement in replacing traditional toxic heavy metal pigments while maintaining superior performance characteristics and meeting stringent international safety standards.

LASERSense™ Laser-curable adhesive systems are developed by Kela Materials and are formulation-and-process designs that use UV, visible, or near-infrared (NIR) irradiation to develop polymerization or crosslinking within an adhesive bond line. They may combine photochemical and photothermal effects to address thick, opaque, or filled layers where penetration is limited. Durability expectations are application-specific and must be validated by system testing.

Purpose: This page explains sensitizing additives used by adhesive formulators to design laser-assisted curing systems. It does not describe finished adhesives and does not offer adhesive products for sale.

System explanation (formulator level)

Why UV/visible alone can fail in thick or optically challenging systems

• Limited penetration: Thick bond lines, pigments, fillers, and scattering reduce effective light depth.
• Surface-first conversion risk: Fast surface conversion can leave incomplete cure deeper in the layer.
• Process sensitivity: Small changes in thickness, substrate reflectance, or fixture geometry destabilize cure consistency.

Why NIR photothermal sensitization matters

NIR is relevant when a formulator needs cure development beyond what UV/visible penetration can reliably deliver. A sensitizing additive can enable controlled in-layer energy conversion under NIR irradiation, which can allow stable cure development in thick, opaque, or filled systems. It does not replace cure chemistry; it makes possible a practical laser-assisted process window.

Role of the sensitizing additive (safe mechanism statement)

At a system level, the sensitizing additive functions as a controlled energy-conversion component (often photothermal, sometimes combined with activation effects), supporting the formulation’s existing polymerization or crosslinking pathway. Performance depends on resin chemistry, additive compatibility, irradiation conditions, and joint design.

What this page is / is not

• Is: A formulator-facing hub page for designing laser-curable adhesive systems using sensitizing additives.
• Is not: A finished adhesive product page. This page does not sell adhesives.

Comparison table

Dimension	UV curing	NIR laser-assisted curing (with sensitizing additives)	Thermal / oven curing
Best fit	Thin, optically clear layers; good exposure access	Thick / opaque / filled layers; localized processing	Bulk heating acceptable; large thermal mass
Main limitation	Penetration limits in scattering/opaque systems	Requires stable irradiation + compatible formulation	Energy cost; slower cycle; heat impact on substrates
Typical control variable	Exposure uniformity	Energy density + scan strategy	Temperature uniformity + dwell time
When not suitable	Very thick, highly scattering bond lines	Poor irradiation access or resin cannot tolerate localized heat gradients	Heat-sensitive assemblies or short-cycle constraints

Application map (general grade)

• Plastics & composites: opaque / filled adhesive layers, pigmentation, scattering challenges
• Electronics & encapsulation: shadowed geometries, local processing constraints

LaserMark-SF – Laser-Responsive Additive for Light Foamed Marking on Dark Engineering Plastics

LaserMark-SF is a laser-responsive functional additive that enables light, foamed contrast marking on dark or high-absorption engineering plastics. It generates clear, durable markings through controlled surface foaming rather than pigment burning, ensuring high readability without compromising polymer performance.

Technical FAQ

1. What is LaserMark-SF?

LaserMark-SF is a laser-responsive functional additive designed to generate light or foamed contrast markings on dark or high-absorption engineering plastics.

2. How does LaserMark-SF create contrast?

LaserMark-SF works through controlled surface foaming under laser irradiation, producing light-colored marks without relying on pigment burning or carbonization.

3. What types of plastics are suitable for LaserMark-SF?

LaserMark-SF is suitable for dark-colored or carbon-filled engineering plastics such as PP, ABS, PC, PA and related compounds.

4. Which laser systems are compatible?

LaserMark-SF performs effectively under common fiber (1064 nm) and green (532 nm) laser systems used in industrial marking.

5. Is LaserMark-SF a pigment or colorant?

No. LaserMark-SF is a functional laser-activation additive and does not act as a color pigment or filler.

6. Will LaserMark-SF affect mechanical or surface properties?

At optimized addition levels, LaserMark-SF maintains the mechanical integrity and surface quality of the base polymer.

7. How does LaserMark-SF differ from LaserMark-W?

LaserMark-SF is optimized for light or foamed markings on dark substrates, while LaserMark-W is designed for dark, high-contrast markings on light or low-absorption plastics.

8. Can LaserMark-SF be used together with other functional additives?

Yes. LaserMark-SF can be formulated alongside conductive additives, fillers or stabilizers when proper formulation balance is maintained.

Single-walled carbon nanotubes (SWCNTs) are seamless, nanometre-scale tubes formed when one or several graphene sheets roll around a central axis at a defined helical angle. Thanks to exceptionally low levels of amorphous carbon, metal residues and structural defects, they deliver outstanding electrical performance.

Kela New Materials specializes in Transparent sub-micron Cobalt Blue—a high-purity cobalt aluminate spinel (CoAl₂O₄, PB28) engineered for advanced industries where conventional cobalt blue pigments cannot meet performance requirements. With true sub-micron-scale particle control, exceptional thermal stability, and a clean, vivid cobalt-blue tone, our transparent cobalt blue delivers superior optical, thermal, and chemical performance across cutting-edge applications. At the heart of our material is an inverse spinel crystal structure that ensures: • Transparent or semi-transparent blue color in inks, coatings, ceramics, and glass • Exceptional heat resistance (up to 1000–1300°C) • High UV and weathering stability • Low ionic migration and ultra-low impurities • Excellent dispersion in polymers, inks, and ceramic matrices • Environmentally safe, non-toxic, non-leaching composition

What LaserMark-G™ (ZrN) does

LaserMark-G™ is a zirconium nitride (ZrN) based marking additive designed to help glass surfaces develop visible contrast under laser irradiation. It is used by formulators and process engineers to build stable, production-ready marking systems for glass parts where direct laser marking is required.

Why glass is difficult to mark

Glass is optically transparent across much of the visible range and has low absorption at many process wavelengths. As a result, the laser energy may pass through or distribute without producing a controlled surface change. In addition, smooth glass surfaces provide limited anchoring points, so any mark that relies on deposited material must also pass adhesion and abrasion requirements.

How ZrN contributes (system-level mechanism)

• Energy coupling: ZrN provides stronger laser energy coupling than bare glass, enabling a localized surface transformation.
• Micro-contrast formation: Under appropriate conditions, controlled micro-roughening / micro-structuring can increase scattering and perceived darkness.
• Process window stabilization: In coating / ink systems, ZrN can help reduce sensitivity to minor changes in focus, speed, and power by improving local absorption.

Typical use formats

• Coating / ink route: ZrN dispersed in an inorganic/organic binder system (often with silane coupling strategy) then laser-written.
• Direct surface treatment route: ZrN-containing layer applied by spray/print/transfer, followed by laser exposure and optional post-cleaning.

What to optimize first

• Laser wavelength and pulse regime (fiber 1064 nm, green 532 nm, UV 355/405 nm, CO₂ 10.6 μm)
• Coating thickness / loading and dispersion quality (agglomerates reduce consistency)
• Binder selection for adhesion + thermal shock resistance (soda-lime vs borosilicate vs tempered glass)
• Post-treatment requirements (wash, abrasion, chemical resistance)

Note: Mark appearance and durability depend on the complete system (glass type, laser, binder, dispersion, thickness). LaserMark-G™ is supplied as an additive material, not a finished marking ink.

XBlacken™ Nano Optical Black is a nano-scale bismuth sulfide (Bi₂S₃)–based optical black material designed for stray-light suppression and contrast control in precision optical systems. It is used where unwanted reflections and optical flare must be minimized, such as camera module interiors, optical baffles, and sensor enclosures.

LaserMark-E is a laser-responsive functional additive developed for laser marking in electronic and precision plastic components. It enables clean, stable, high-readability markings while minimizing contamination, outgassing, and interference with electrical performance.

LaserMark-E – Laser Marking Additive for Electronics and ESD-Sensitive Plastics

LaserMark-E is a laser marking additive optimized for electronic plastics and precision components. It delivers clear, durable laser markings with controlled contrast while preserving electrical, mechanical, and surface integrity required in electronic and ESD-sensitive applications.