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    Understanding Phase Change Material (PCM)

    PCM solutions are substances that can store and release large amounts of energy to maintain a specific temperature range over a long period of time.

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    How do PCM Solutions work?

    A phase change material absorbs and releases thermal energy in order to maintain a regulated temperature.

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    What are the Types of PCM Solutions?

    Microtek currently concentrates on organic PCMs and offers raw PCM Blends as well as three forms of microencapsulated PCM: slurry, wet cake and dry powder.

    These forms have their own unique advantages and are best suited to certain applications.

    Description

    This is the phase change material itself in its' simplest form. The material is a solid below its' melt point and a liquid above its' melt point.

    How to Use

    The material can be melted above its' melt point and then poured into the suitable container (pouch, piping, plastic molded parts, etc.).

    Forms Offered

    Unencapsulated parrafin PCM Blend.

    Standard Available Melt Points

    -30C, -10C, 6C, 18C, 24C, 28C, 32C, 37C, 43C and 58C.

    Description

    Microencapsulation of the PCM creates a tiny, microscopic container for the PCM. The PCM is contained in this capsule during its solid and liquid state. 

    How to Use

    The PCM microcapsules can be incorporated directly onto textiles, into latex or PU foams, into adhesives, into insulation, etc.

    Forms Offered

    Slurry: ~35- 45% solids aqueous suspension

    Wet cake:  ~70% solids, 30% water

    Dry powder:  >97% solids

    Standard Available Melt Points

    -10C, 6C, 18C, 24C, 28C, 32C, 37C, 43C and 57C.

    Why Use PCM Solutions?

    Phase change materials are unique as they provide completely passive thermal regulation – no power is needed to create this thermal regulation. In addition, PCMs can be used over and over again.

    Microtek_FINAL_Icons_Teal_Building & Construction
    Building Consumption
    Energy savings to owners when used in the construction of buildings and structures.
    Microtek_FINAL_Icons_Teal_Electronics
    Consumer Electronics
    Cool small electronic devices such as laptops, tablets and smartphones when space for active cooling systems is not available.
    Microtek_FINAL_Icons_Teal_Consumer Products
    Textiles
    Provide thermal regulation for textiles in a wide variety of areas including: activewear, hospital linens, outdoor gear, and more.
    Microtek_FINAL_Icons_Teal_Bedding
    Bedding
    Provide a better night’s sleep through thermally regulated mattresses, pillows, linen, and other bedding products.
    Microtek_FINAL_Icons_Teal_Packaging & Shipping
    Thermal Shippers
    Thermally protect temperature-sensitive products (pharmaceuticals, vaccines, food products, etc.) during transit.
    Microtek_FINAL_Icons_Teal_Quality
    Energy Management
    Heating and cooling relief in remote locations without access to electricity.
    Microtek_FINAL_Icons_Teal_Sustainability
    Alternative Energy
    Heat storage and release in conjunction with alternative energy systems.
    Microtek_FINAL_Icons_Battery
    Batteries
    Regulate battery temperatures to increase life and prevent thermal runaway.

    10 Facts about Phase Change Materials

    Can phase change materials (PCM) be a valuable part of a thermal management solution? These ten facts can help you answer that question and determine what PCM might be right for you.

    View Blog

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    Phase Change Solutions

    Microtek_Website_Icons_Micronal

    • Capsule Components
       Acrylic based capsule wall with parafifin core

    • Enthalpy (varies by temperature)
       ~ 130 – 160 J/g

    • Thermal Stability 
       ~ 200°C

    • Specific Gravity
       ~ 0.9 g/ml

    • Bulk Density
       ~ 0.555 g/cm3

    Microtek_Website_Icons_Nextek

    • Capsule Components
       Melamine based capsule wall with paraffin core

    • Enthalpy (varies by temperature)
       ~ 150 – 205 J/g

    • Thermal Stability
       ~250°C

    • Specific Gravity 
       ~ 0.9 g/ml

    • Bulk Density
       ~ 0.555 g/cm3

    Microtek_Website_logos_vivtek

    • Capsule Components
       Melamine based capsule wall with biobased core

    • Enthalpy (varies by temperature)
       ~ 150 – 205 J/g

    • Thermal Stability
       ~250°C

    • Specific Gravity
       ~ 0.9 g/ml

    • Bulk Density
       ~ 0.555 g/cm3

    Microtek_Website_logos_fibratek• Capsule Components
       Acrylic based capsule wall with parafifin core

    • Enthalpy (varies by temperature)
       ~ 130 – 160 J/g

    • Thermal Stability 
       ~ 200°C

    • Specific Gravity
       ~ 0.9 g/ml

    • Bulk Density
       ~ 0.555 g/cm3


    MPCM_mark-01

    • Capsule Components
       Melamine based capsule wall with paraffin core

    • Enthalpy (varies by temperature)
       ~ 150 – 205 J/g

    • Thermal Stability
       ~250°C

    • Specific Gravity
       ~ 0.9 g/ml

    • Bulk Density
       ~ 0.555 g/cm3

    Microtek_Website_Icons_PCMBlend• Type
       Paraffin-based

    • Enthalpy (varies by temperature)
       ~ 165 – 245 J/g

    • Characteristics
       Above melt point: Liquid, colorless
       Below freeze point: Solid, opaque

    • Specific Gravity
       ~ 0.9 g/ml

    How to Use PCMs?

    We have extensive knowledge in the application of phase change materials.

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    Chemical Compatibility

    Micronal/fibratek
    Avoid: perchloroethylene, acetone, and THF

    nextek/vivtek/MPCM
    Recommended: Non-Polar, aprotic solvents, water

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    Dispersing Aids

    Rheovis AT120 (Visc. Modifier)
    Sokalan AT120 (Thickener)

    nextek/vivtek/MPCM
    CTAB (Surfactant)
    Tween (Non-ionic Surfactant)
    Span (Non-ionic Surfactant)
    Sodium Laure Sulfate (Surfactant)
    CTAB (Surfactant)
    SDBS (Surfactant)

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    Recommended Materials and Binders

    Micronal
    Acrylates, Acetates, Polyethylenes, Polystyrenes, Foams,
    HSL, epoxy and resins.

    nextek and MPCM
    Acrylic-based
    Urethanes-based

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    Pumping Methods

    Recommended: Diaphragm Peristaltic Progressive Cavity

    Avoid: Gear Pumps

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    Mixing and Blades

    Recommended: Pitched Blade Turbines, Sweep or Prop Blades

    Avoid: Cowles Blades and High Shear mixing

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    Mixing Parameters

    Speeds vary based on vessel size, fill level, and viscosity. Low speeds to deter cavitation.

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    Development Kit

    The Microtek Development Kit assists you in identifying the best solution for your specific requirement.  By selecting up to three specific PCM samples: type, form and temperature,  the Development Kit provides the resources to personally test and experiment with the PCM materials to determine the best performance for your application. 

    Start Your Research

    Where are PCM Solutions Used?

    What type of PCM is a good fit for your application?

    Download Free Resource