Video | Business Headlines | Internet | Science | Scientific Ethics | Technology | Search

 


Lower Hutt Companies Team up to Produce Hi-Tech Roof Paint


Lower Hutt Companies Team up to Produce Hi-Tech Roof Paint

GNS Science and Resene Paints have teamed up to develop a hi-tech roof paint containing nano-particles that will be more effective than existing coating products at reflecting summer heat and keeping buildings cooler in summer.

The joint project will develop a new low-cost way of producing a powder containing metal oxide nanoparticles that can be readily incorporated with existing paint manufacturing methods. Once the technology is perfected for roof coatings, it is likely to be available for other applications such as marine and automotive coating products, said project leader John Kennedy of GNS Science.

The project has received Ministry of Business Innovation and Employment funding of $450,000-a-year for two years to help establish New Zealand as a leader in ‘cool coating technology’. Resene is contributing $100,000 in ‘in-kind’ support.

Infra-red reflective coatings are currently available but they are expensive, only partly effective, and come in only a small colour range.

“The global market for coloured coatings with infra-red reflective pigments is valued at $250 million-a-year and it is growing at about 12 percent annually,” Dr Kennedy said.

“Improvements in reflectance will translate into much greater value for consumers due to reduced energy bills, lower maintenance and replacements costs, plus a larger colour range.”

GNS Science has designed and built a prototype chamber that produces the reflective powder containing metallic oxide nano-particles. Quantities produced are small, but enough to allow continued development of the technology.

Once the process is perfected it would be easy to scale up production to supply commercial quantities of the powder, Dr Kennedy said.

“Producing the power is the easy part. The main focus of our research at present is perfecting a chemical process that will modify the powder so it mixes evenly in the paint and will result in a coating that reflects evenly across an entire surface.”

When the powder is produced in a specially patented process at GNS Science, the nano-particles occur crystalline form, with the atoms arranged in a firmly bound lattice structure.

Dr Kennedy and his team are currently developing a chemical process that will separate the particles so they disperse evenly through the paint.

Only a small amount of the metallic oxide powder – about 1 percent by volume – was needed to significantly enhance the infra-red reflectivity of a paint, he said.

“We believe we will be able to selectively tune the reflective properties of paint by controlling the size and physical characteristics of the nano-particles.

“Once developed and commercialised, these enhanced coatings will enable New Zealand paint manufacturers to increase their exports of high-technology products.

“Users of these products will be able to save money in reduced maintenance costs and enjoy more comfortable living and working environments.”

It was hoped trials of the new production process would be completed by late 2014 and commercial production could start as early as 2015.

The nanotechnology group at Crown-owned research company GNS Science has established a strong track record with innovative developments to assist high-value manufacturing industries.

Other organisations working with GNS Science on this project are Industrial Research Limited and the University of Canterbury.

END


© Scoop Media

 
 
 
 
 
Business Headlines | Sci-Tech Headlines

 

Scoop Business: RBNZ Starts Talks On Tougher Rules For Property Speculators

The Reserve Bank of New Zealand is stepping up preparations to restrict lending to residential property investors as it watches house prices, particularly in Auckland, continue to rise strongly. More>>

ALSO:

Research: ‘Ageing Well’ Science Challenge Launched

Science and Innovation Minister Steven Joyce today launched the Ageing Well National Science Challenge, confirming initial funding of $14.6 million. More>>

ALSO:

Scoop Business: Govt Resisting Pressure To Pump More Cash Into Solid Energy

Prime Minister John Key says it is “not the government’s preferred option” to make a fresh capital injection into the troubled state-owned coal miner, Solid Energy, but dodged journalists’ questions at his weekly press conference on whether that might prove necessary... More>>

ALSO:

Lagest Ever Privacy Breach Award: NZCU Baywide Accepts “Severe” Censure In Cake Case

NZCU Baywide says that once it was found to have committed a breach of a former staff member’s privacy, it had attempted to resolve the matter... the censure and remedies for its actions taken almost three years ago are “severe” but accepted, and will hopefully draw a line under the matter. More>>

ALSO:

Scoop Business: PayPal Stops Processing Mega Payments; NZX Listing Still On

PayPal has ceased processing payments for Mega, the file storage and encryption firm looking to join the New Zealand stock market via a reverse listing of TRS Investments, amid claims it is not a legitimate cloud storage service. More>>

ALSO:

Housing Policy: Auckland Densification As Popular As Ebola, English Says

Finance Minister Bill English said calls by the Reserve Bank Governor for more densification in Auckland’s housing were “about as popular in parts of Auckland as Ebola” would be. More>>

ALSO:

Get More From Scoop

 
 
Standards New Zealand

Standards New Zealand
 
 
 
 
 
 
 
 
Sci-Tech
Search Scoop  
 
 
Powered by Vodafone
NZ independent news