Environmentally-friendly Large-Size Notebook PCs
By Mike Hanlon
January 22, 2005
January 23, 2005 Fujitsu, Fujitsu Labs and Toray have announced the joint development of the world's first large-size notebook PC plastic housing made of plant-based plastic. The new environmentally-friendly plastic will be used in Fujitsu's 2005 model FMV-BIBLO NB80K notebook PC due for release in the second quarter, and will no doubt be on the shopping list of those wishing to reduce their environmental impact.
The three companies plan to expand on various applications for this plastic, thereby further contributing to a reduction in the environmental burden as well as lower consumption of petroleum resources.
In recent years, environmental issues such as ozone depletion, air pollution, environmental pollution, and rapid increase of industrial waste and toxic waste, have emerged worldwide. To address these problems, there is a need for the development of a recycling-based society.
Currently, various environmental laws and regulations are being legislated on a global scale, to reduce burden on the environment. The IT industry is no exception to these trends, and in Japan, environmental awareness is on the rise with a number of environmentally-related laws recently passed: the Law on Promoting Green Purchasing, the Law for the Promotion of Effective Utilization of Resources, and the Pollutant Release and Transfer Register (PRTR) Law.
Use of fossil fuels, such as petroleum and coal, increases CO2 in the atmosphere and cause the rapid spread of the greenhouse effect, resulting in an urgent need to reduce CO2 emissions.
Given these circumstances, there is increasing interest in applications of plastics created from plant materials, as an alternative to petroleum-based plastics which are limited in resource.
In June 2002, Fujitsu and Fujitsu Laboratories announced the development of the world's first technology for plant-based plastics that could be used for small-size housing components in notebook PCs, using polylactic acid derived from corn and other plants. This technology was used in one of Fujitsu's FMV-BIBLO notebook PC models.
Toray positions polylactic acid as an environmentally-friendly, advanced material and has been developing markets for fibers, textiles, plastics and films under the brand name Ecodear, while conducting ongoing research in ways to obtain better performance from polylactic acid.
In order to broaden the applications for plant-based plastics, the three companies have been improving the materials' heat resistance and flame retardance properties. The new material formerly was not suited for volume production and use in large-size housing, due to its use of polylactic acid which has low glass transition temperature (the temperature at which the transition between the glassy and rubbery state occurs.), making it difficult to mold.
The companies have now developed a new type of plastic that uses polymer alloy technology(where two polymers with different characteristics are compounded to obtain a new material with better performance and functionality.) blending polylactic acid and a non-crystalline plastic with a high glass transition temperature as well as flame-retardant technology.
These advances have resulted in a material with the heat resistance and flame retardance mandatory for a large-size housing for IT devices, which features easy moldability, making it suitable for mass production.
On the environmental front, the new plastic consists of roughly 50% natural products (including plant- based materials), reducing the use of petroleum resources. When used to manufacture a notebook PC, CO2 emissions over the product's entire lifecycle are reduced by roughly 15%, thereby further reducing the impact on the environment.
Fujitsu, Fujitsu Laboratories, and Toray plan to expand the range of uses for this new material as a way to further reduce overall environmental burden and consumption of petroleum resorces in the IT industry.