Phase Change Matters RSS

 

The award-winning Phase Change Matters blog tracks the latest news and research on phase change materials and thermal energy storage. E-mail tips and comments to Ben Welter, communications director at Entropy Solutions. Follow the blog on Twitter at @PureTemp. Subscribe to the weekly PCM newsletter. Or join the discussion on LinkedIn.

RECENT POSTS

TAGS

ARCHIVE

Outlast promises 'more transparency' on range of PCM applications at Techtextil trade show

Ben Welter - Wednesday, March 11, 2015

Outlast Technologies is seeding interest in its appearance at Techtextil, still two months away, with a flurry of Web reports promising "more transparency" at the big trade show in Frankfurt, Germany. 

The company, best known for its use of phase change materials in bedding and sportswear, says it will present "the complete PCM spectrum" at the May 4-7 show:

Coating: "A high loading can be reached. Nonwovens or knits serve as raw materials which are coated. The applications are wide: Looking at bedding mattresses and mattress protectors, pillows and duvets take profit of the dynamic climate regulation. Coated products are used for apparel/footwear and PPE from head to toe. This application is also interesting for medical products."

Outlast matrix infusion coatingMatrix infusion coating [right]: "An advanced formulation of Outlast® PCM is finely printed onto flat fabric. This process is ideal for brands seeking a larger volume program using their own fabrics. Outlast® MIC is intended for products worn next to skin and is perfect for the active, casual and sportswear markets."

Fibers: "This application is suited for products being worn next to skin (for example: underwear, socks, t-shirts, orthopedic products)."

Filling materials: "There are different Outlast® filling materials (based on viscose or polyester fibers), which can be used for bedding or apparel (for example jackets). They can be also blended with downs."

Compounds: "Here Outlast focuses on individual solutions for projects. If a customer already has special process technology available (for example a spraying equipment) the matching Outlast® compound can be used. The customer then produces his end product (for example: mattresses which are sprayed with the compound). With little investment the heat managing performance can be easily achieved."

http://www.innovationintextiles.com/outlast-to-present-complete-pcm-spectrum-at-techtextil

Research roundup: Thermally homeostatic buildings; expanded graphite; firefighter fabrics; sol-gel process

Ben Welter - Friday, March 06, 2015

  • Energy storage and heat extraction – From thermally activated building systems (TABS) to thermally homeostatic buildings [Renewable and Sustainable Energy Reviews]

  • The effect of expanded graphite on the thermal stability, latent heat, and flammability properties of EVA/wax phase change blends [Polymer Engineering & Science]

  • Enhancing the Thermal Protective Performance of Firefighters' Protective Fabrics by Incorporating Phase Change Materials [Fibres & Textiles in Eastern Europe]

  • Preparation of Microencapsulated Phase Change Materials by the Sol-gel Process and Its Application on Textiles [Fibres & Textiles in Eastern Europe]
  • Research roundup: Conventional chiller system; TES at 575° C and above; vermiculite-perlite composites; more

    Ben Welter - Monday, February 23, 2015

  • A comparison of the field performance of thermal energy storage (TES) and conventional chiller systems [Energy]

  • Experimental and numerical investigation of combined sensible–latent heat for thermal energy storage at 575° C and above [Solar Energy]

  • Experimental investigation of the specific heat of a nitrate–alumina nanofluid for solar thermal energy storage systems [International Journal of Thermal Sciences]

  • Preparation of energy efficient paraffinic PCMs/expanded vermiculite and perlite composites for energy saving in buildings [Solar Energy Materials and Solar Cells]

  • Electrospun fibers based on polyvinyl pyrrolidone/Eu-polyethylene glycol as phase change luminescence materials [Materials Letters]

  • The Potential of Phase Change Materials to Reduce Domestic Cooling Energy Loads for Current and Future UK Climates [Energy and Buildings]

  • Parametric Investigations of Using a PCM Curtain for Energy Efficient Buildings [Energy and Buildings]

  • Effect of Silver Nanoparticles on the Thermal Properties of Sodium Acetate Trihydrate [International Journal of Thermophysics]

  • Webinar on smart coatings market research is set for Feb. 11

    Ben Welter - Thursday, January 29, 2015

    Industry analyst NanoMarkets will hold a webinar on Feb. 11 to present its latest report on the smart coatings market. The report projects that market, which includes phase change materials, will grow from around $610 million in 2015 to $5.8 billion in 2020. Webinar topics include:

  • The impact of trends such as the decline in energy prices and the war on terror.

  • Insight on self-healing, self-cleaning and self-assembling coatings.

  • The outlook for wearable electronics and the Internet of Things.

  • http://nanomarkets.net/news/article/nanomarkets-announces-february-11-2015-date-for-smart-coatings-webinar

    Outlast technology cools Puma's new golf shoe

    Ben Welter - Thursday, January 15, 2015

    Puma's TitanTour golf shoePuma's new TitanTour golf shoe features temperature-regulating phase change material in its lining. The Outlast technology is designed to keep the wearer comfortable by absorbing, storing and releasing heat as conditions demand.
      
    The shoe, set for release Feb. 1, retails for $190. Rickie Fowler, Jonas Blixt, Will MacKenzie and Jesper Parnevik are among the pro golfers set to wear it.

    PCMs, the gift that keeps on giving (Part 2)

    Ben Welter - Wednesday, December 17, 2014

    Here are a few more PCM-related gift ideas:Ministry of Supply's Apollo dress shirt

  • High-tech clothier Ministry of Supply offers PCM-infused dress shirts, sweaters and even a scarf. It's the same technology used in spacesuits to regulate an astronaut's body temperature: Phase change material absorbs heat when the wearer is overheated, then releases it when the wearer is cold.

  • http://ministryofsupply.com/collections/shop

  • This one would be difficult to gift-wrap and wouldn't fit under most trees. But it looks pretty comfy. The memory foam in Serta's iComfort mattress -- or "Sleep System," as the manufacturer calls it -- is blended with gel beads that contain phase change material.

  • http://www.dealbeds.com/serta-icomfort-insight-everfeel-mattress

  • The Chilly Dog® Cool Vest is designed for use by police and military dogs. But any dog out for a walk on a hot humid day deserves to chill out. 

  • http://store.coolvest.com/rpcm-chillydog-dog-cooling-vest-black 

    Trend toward smart textiles is driving growth in microencapsulated PCMs

    Ben Welter - Tuesday, December 09, 2014

    The latest Frost & Sullivan research on the global market for microencapsulated phase change materials in textiles and mattresses is out. F&S reports that the industry earned revenues of $45.1 million in 2013 and projects that number will reach $99 million in 2018.

    The report covers fibers, yarns, fabrics, foams and gels that incorporate microencapsulated PCMs. F&S says the trend toward smart textiles that comfortably regulate temperature is driving the use of microencapsulated PCMs in clothing and mattresses.  

    http://www.prnewswire.com/news-releases/enhanced-comfort-offered-by-microencapsulated-phase-change-materials-drives-use-in-textiles-and-mattresses-300005869.html

    A chilling effect on hot flashes

    Ben Welter - Tuesday, December 09, 2014

    CoolCami camisoleIs there any temperature-regulation problem that phase change material can't solve? CoolCami, a form-fitting camisole, is designed to reduce the discomfort of hot flashes. A cooling liner made from PCMs absorbs the heat generated by a woman's body when a hot flash kicks in. 

    The CoolCami company also sells CoolMeMat, designed to provide relief for people who suffer from night sweats. The liners for both products recharge in about an hour at room temperature and provide relief for up to four hours. 

    http://www.24-7pressrelease.com/press-release/coolcami-launches-first-wearable-product-for-hot-flashes-398170.php 

    You could even say it glows

    Ben Welter - Tuesday, November 25, 2014

    Rudolph Microencapsulation of PCMs typically involves a single purpose: thermal energy storage. What if you could make that material glow as well? That's what three researchers at the Beijing University of Chemical Technology set out to find. They designed and synthesized PCM microcapsules with an n-eicosane core and zirconium dioxide shell to attain the characteristics of latent-heat storage/release and photoluminescence. Potential applications include intelligent fibers and photosensitive devices.

    Outlast introduces new PCM-based filler material

    Ben Welter - Friday, November 14, 2014

    Outlast Technologies’ new Universe climate-control material is designed for use in bedding and apparel. The material is a combination of 70 percent down and 70 PCM-laden viscose fibers. Thicker fibers carry a greater amount of phase change material. “The performance compared to a standard PCM viscose fibre here is four times higher,” says Martin Bentz, managing director of Outlast Europe.