What Is Cloud Masterbatch? Thermal Management, Heat Insulation and Energy-Efficient Polymer Solutions|KCI

Cloud Masterbatch: Integrating Thermal Management into Polymer Materials

From Heat Insulation to Thermal Retention, Making Plastic Materials Part of Energy-Efficient Design

Cloud Masterbatch integrates solar radiation reflection and micro-porous insulation technologies into polymer materials, enabling enhanced thermal management performance. From cold chain logistics and functional textiles to building insulation and outdoor applications, it helps improve product performance, user comfort, and energy efficiency.

When Plastic Materials Begin to Provide Thermal Management

In the past, the value of plastic materials was mainly associated with strength, weight, processability, and appearance.

However, as energy costs continue to rise, climate-related concerns gain more attention, and end users expect better comfort and energy efficiency, the market’s expectations for polymer materials are changing.

Today, materials are no longer only structural components of a product. They are expected to contribute to product performance and help solve challenges related to thermal management, energy efficiency, and user experience.

This is why KCI developed Cloud Masterbatch.

Our goal is to help plastic materials go beyond appearance and processability, enabling them to deliver meaningful thermal management performance and become a functional core in product design.

Core Concept of Cloud Masterbatch

Cloud Masterbatch is a high-performance functional masterbatch system that integrates heat insulation, thermal retention, and thermal management capabilities.

The design concept is inspired by clouds in nature. Clouds can reflect part of solar radiation while slowing down heat transfer through their unique structure, influencing temperature changes in the environment.

KCI applies this concept to polymer material design, allowing plastic materials to gain thermal management functionality and create additional product value.

Cloud Masterbatch is not a single product. It is a thermal management material solution that can be customized into heat shield and thermal retention systems based on application needs.

Heat Shield Series

The Heat Shield Series helps reduce heat absorption and surface temperature rise. It is suitable for applications that require protection from external heat sources and reduced heat accumulation.

Thermal Retention Series

The Thermal Retention Series helps slow down heat loss and maintain temperature stability. It is suitable for cold chain packaging, thermal bags, and products that require stable temperature performance.

Key Benefits of Cloud Masterbatch

  • Reduces heat absorption
  • Slows down heat transfer
  • Improves thermal retention
  • Enhances user comfort
  • Improves energy efficiency
  • Can be introduced into existing production lines
  • Applicable to multiple polymer materials
  • Supports customized formulation design

How Does Cloud Masterbatch Work?

Solar Radiation Reflection Mechanism

When materials are exposed to sunlight for extended periods, solar radiation can quickly convert into heat energy, causing the surface temperature of products to rise.

Cloud Masterbatch uses special microstructure design to improve the reflection of specific solar radiation wavelengths, helping reduce heat absorption and heat accumulation.

This mechanism is suitable for building exterior materials, roofing systems, automotive interior components, outdoor furniture, outdoor equipment housings, agricultural covering materials, and sports and leisure products.

Micro-Porous Thermal Insulation Mechanism

Cloud Masterbatch can create special micro-porous structures inside polymer materials. These structures capture still air and form a natural insulation layer.

Because air has excellent insulating properties, this structure helps reduce thermal conductivity and slow down heat loss.

The principle is similar to the insulation effect of down jackets, thermal bottles, and clouds in nature. Even in low-temperature environments, it helps materials maintain more stable temperature performance.

How Is Cloud Masterbatch Different from Traditional Insulation Solutions?

Traditional insulation solutions often rely on coatings, films, or additional structural designs.

Cloud Masterbatch integrates thermal management functionality directly into the polymer material itself. The function exists throughout the material structure and can be formed together with the product during processing.

In many cases, no additional equipment or major production line modification is required. This helps reduce development costs and lower the entry barrier for introducing thermal management performance.

One Masterbatch, Multiple Material Applications

Applicable Base Materials

  • PET
  • Nylon
  • PP
  • PE
  • EVA
  • TPU

Applicable Processes

  • Filament products
  • Staple fiber products
  • Meltblown nonwoven fabrics
  • Foam materials
  • Films
  • Extrusion coating products

KCI can provide customized formulations based on different resin systems and application requirements, helping customers balance performance, processability, and cost.

Test Data: Turning Function into Measurable Performance

Cold Chain Thermal Retention Test

  • Cooling rate reduced by approximately 25%
  • Temperature retention time extended by approximately 700 seconds
  • CLO value increased from 1.2 to 1.5
  • Thermal retention performance improved by approximately 25%

Foam Cooling Retention Test

In a 5 mm foam cooling retention test, KCI Cloud Masterbatch foam material showed longer cooling retention time compared with standard foam material.

  • Standard foam material: 20.36 hours
  • KCI Cloud Masterbatch foam material: 24.57 hours
  • Cooling retention time increased by approximately 4.2 hours
  • Performance improved by approximately 20.7%

Textile Application Test

In simulated sunlight exposure testing, KCI Cloud Masterbatch fabric demonstrated better heat shielding and reduced thermal conductivity.

Standard Polyester Fabric

  • Surface temperature: 61.1°C
  • Heat shielding rate: 40.2%
  • Thermal conductivity: 0.157 W/mK

KCI Cloud Masterbatch Fabric

  • Surface temperature: 58.2°C
  • Heat shielding rate: 46.0%
  • Thermal conductivity: 0.087 W/mK

The test results showed that the surface temperature was reduced by approximately 3°C, thermal conductivity decreased by approximately 45%, and heat shielding performance improved by approximately 15%.

Film Heat Shielding Test

In film applications, Cloud Masterbatch can help improve heat shielding performance without significantly changing the appearance design.

  • White film heat shielding rate increased from 16.3% to 28.3%
  • Black film heat shielding rate increased from nearly 0% to approximately 4.1%–4.8%
The above test results are based on specific materials and testing conditions. Actual performance may vary depending on base material, product structure, usage environment, and processing conditions.

Application Examples

Cold Chain Logistics and Thermal Packaging

  • Cold storage boxes
  • Food delivery thermal bags
  • Medical cold chain packaging
  • Fresh food logistics packaging

Functional Textiles and Outdoor Products

  • Functional fabrics
  • Sportswear
  • Sun protection products
  • Outdoor gear

Building and Industrial Insulation

  • PE / EVA insulation foam boards
  • Building insulation materials
  • Freezing and thermal pipe insulation
  • Building exterior panels
  • Roofing materials

Outdoor Equipment and Transportation Applications

  • Automotive interior materials
  • Outdoor furniture
  • Equipment housings
  • Transportation equipment

Why Choose Cloud Masterbatch?

Cloud Masterbatch is more than an insulation material. It is a functional material platform that helps improve product competitiveness.

By integrating thermal management performance into polymer materials, companies can develop products that are lighter, more insulating, and more energy efficient.

Lighter Design

Reduces reliance on additional insulation structures and provides greater flexibility in product design.

High Insulation Performance

Helps reduce heat absorption and thermal conductivity, improving product performance in both high-temperature and low-temperature environments.

Energy Efficiency

Improves energy efficiency and helps reduce energy consumption during the product use phase.

KCI Perspective: From Color to Function, From Function to Sustainability

For more than 40 years, KCI has focused on polymer material innovation and customized masterbatch solutions.

We believe the value of next-generation masterbatch technology is not only about color. More importantly, it is about enabling materials to provide function, improve efficiency, and create long-term competitive advantages for customers.

Cloud Masterbatch is an important practice of KCI’s functional material innovation.

Through thermal management technology, we aim to help plastic materials move from passive components to active enablers of energy-efficient design and sustainable innovation.

FAQ

What is Cloud Masterbatch?

Cloud Masterbatch is a high-performance functional masterbatch designed to provide heat insulation, thermal retention, and thermal management performance. It uses solar radiation reflection and micro-porous insulation structures to reduce heat absorption, slow down heat transfer, and improve thermal performance.

How does Cloud Masterbatch achieve heat insulation?

Cloud Masterbatch works through two main mechanisms. First, it improves the reflection of specific solar radiation wavelengths to reduce heat absorption. Second, it creates micro-porous structures that capture still air and form an insulation layer, reducing thermal conductivity.

How is Cloud Masterbatch different from standard white masterbatch?

Standard white masterbatch mainly provides opacity and color appearance. Cloud Masterbatch focuses not only on appearance but also on thermal management performance, helping reduce heat absorption, slow heat transfer, and improve thermal retention.

How is Cloud Masterbatch different from traditional insulation solutions?

Traditional insulation solutions often rely on coatings, films, or additional structures. Cloud Masterbatch integrates thermal management functionality directly into the polymer material itself, allowing the function to be formed together with the product during processing.

Which plastic materials can Cloud Masterbatch be used with?

Cloud Masterbatch can be applied to various polymer materials, including PET, Nylon, PP, PE, EVA, and TPU. The actual formulation should be adjusted based on the base material, processing conditions, and target performance requirements.

Which production processes are suitable for Cloud Masterbatch?

Cloud Masterbatch can be used in filament, staple fiber, meltblown nonwoven, foam, film, and extrusion coating processes. In most cases, it can be introduced into existing production lines, but testing is recommended based on actual equipment and processing conditions.

Which industries are suitable for Cloud Masterbatch?

Cloud Masterbatch is suitable for cold chain logistics, thermal packaging, functional textiles, outdoor products, building insulation, industrial insulation, automotive materials, foam products, and film applications that require heat insulation, thermal retention, or temperature stability.

Does Cloud Masterbatch require new production equipment?

In most cases, new equipment is not required. Cloud Masterbatch can be introduced into existing extrusion, injection molding, fiber, foam, film, and extrusion coating processes. However, actual processing conditions should be evaluated based on the material system and product structure.

Can Cloud Masterbatch be customized?

Yes. KCI can provide customized formulation recommendations based on product application, base material, processing conditions, target performance, and cost requirements.

Can Cloud Masterbatch support sustainability goals?

Yes. By improving heat insulation and thermal retention efficiency, Cloud Masterbatch can help reduce energy consumption during the product use phase. It may support energy-saving and carbon reduction goals in applications such as cold chain logistics, building insulation, and outdoor products.