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Re: [greenyes] Sharp uses Plant-based and recycled plastics


This story raises some questions (details below). Can anyone provide answers?
H.


At 01:11 PM 9/2/2005, amy perlmutter wrote:
4. Sharp Develops New Technology to Blend Plant-Based Plastic with Waste Plastic

DATE 2005

SOURCE Sharp Corporation [website]

ABSTRACT Sharp Corporation has developed a new technology to blend plant-based plastic that uses corn as the raw material, and waste plastic recovered from scrapped consumer electronics. Using a mix of plant-based plastic and waste plastic blended by means of this technology in consumer electronics can significantly reduce environmental impact compared to using common plastics derived from petroleum-based feedstocks.

Will this blended plastic, in turn, be able to be recycled?

In the future, Sharp will be conducting tests to assess commercial potential, with the goal of using blended plastic in Sharp products within fiscal 2006. In the future, when the price of plant-based plastics is reduced to a level on a par with general plastics, it is estimated that the percentage of renewable resources (plant-based plastic and waste plastic) used in all products will increase to 30% by fiscal 2010. At present, raw materials used in consumer electronics rely almost entirely on fossil materials such as petroleum, but efforts to shift as much as possible to renewable resources (plant-based and recycled materials) are moving forward from the perspective of limiting emissions of greenhouse gases, with the aim of building a sustainable recycling-oriented society.

How will the blended material reduce GHGs?
Repeat Q #1 above.

At the same time, plant-based plastics have the potential to reduce the impact on the environment given that incinerating these materials does not cause the concentration of carbon dioxide gas in the atmosphere to rise.

Why not?

However, problems remain in terms of impact/shock resistance, thermal resistance,

That is, fire-retardant additives will be needed?

cost and other factors, and their adoption in the area of consumer durable goods, particularly electronic products, remains limited.

What is the role of regulation in creating level field and raising industry standard?

Against this background, Sharp has been conducting research since 1999 on technologies to recycle waste plastic from consumer electronics, and in May 2003, put such a recycling technology into practical use to enable repeated re-use of polypropylene (PP) and polystyrene (PS) recovered from four categories of discarded household electrical appliances falling under the Home Appliance Recycling Law (air conditioners, TVs, refrigerators and washing machines) in components in new manufactured products in these four categories without loss of physical properties such as material strength.



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