Mazda Develops High-Strength Heat-Resistant Bioplastic With Hiroshima Area Partners

Mazda Develops High-Strength Heat-Resistant Bioplastic With Hiroshima Area Partners

Tokyo, Japan, — Mazda Motor Corporation has announced that an industry-government-academia joint research project in Hiroshima Prefecture, in which it is participating, has accomplished an improved exterior surface good quality, higher-strength, heat-resistant plastic (bioplastic) produced of organic supplies. It can also be utilized for automobile interior components. An automotive sector initial, this new bioplastic is made from organic materials and is carbon neutral simply because of the reduced amounts of fossil fuels utilised to make it and the consequent lowered amount of carbon dioxide (CO2) emissions.

This newly-developed bioplastic attributes is stronger – it has three times the shock impact resistance along with 25 % greater heat resistance when compared to contemporary bioplastics utilised for things such as electrical appliances. In addition, it is created with a fermentation method that contains natural materials such as fermented starches and sugars which, compared with the approach to make polypropylene, reduces power use by 30 percent. In contrast to current petroleum-primarily based polypropylene plastics, the new bioplastic also has comparatively greater rigidity, resulting in thinner molds and fewer materials utilized. These attributes hold great promise for better productivity in the mass production of vehicle parts, because parts manufacture often entails injection-molding gear. Mazda will continue its research and improvement in this location for the subsequent a number of years, with any new advances being employed in Mazda merchandise.


This newly-developed bioplastic is made of 88 percent corn and 12 % petroleum. Mainly utilizing corn-primarily based polylactic acids, Nishikawa Rubber Co. Ltd, Hiroshima and Kinki Universities focused their efforts on establishing a new nucleating agent for crystallization and a compatibilizer compound to raise the strength and heat resistance of the new plastic, dramatically rising the quantity of applications for automobile manufacturing.

This study was the outcome of joint sector-academia-government collaboration, promoted under the auspices of the Japanese Ministry of Economy, Trade and Industry’s (METI) “Consortium R&ampD Projects for Regional Revitalization” plan, which began in 2004. The joint study conducted below this rubric has the targets of fostering new sector, generating new enterprise and revitalizing regional economies in Japan.

The new bioplastic consortium project partners are Hiroshima University, Nishikawa Rubber Co. Ltd., Western Hiroshima Prefecture Industrial Investigation Institute, G.P. Daikyo Corporation, Japan Steel Performs Ltd., Kinki University School of Engineering, Nishikawa Kasei Co. Ltd., National Study Institute of Brewing, Yasuhara Chemical Co. Ltd., MANAC Incorporated and Mazda Motor Corporation. This is a consortium consisting of two universities, seven organizations and two analysis institutes.

Seita Kanai, senior managing executive officer in charge of Mazda’s R&ampD, mentioned, “Mazda and G.P. Daikyo Corporation are at the center of a planet-class accumulation of automotive plastic module parts makers here in the Hiroshima area. Primarily based on our wealthy tradition of sake brewing in this region, we’ve been accumulating fermentation biotechnology for a long time and Hiroshima University, Nishikawa Rubber Firm and the Western Hiroshima Prefecture Industrial Investigation Institute – among other organizations – have an in depth history of investigation into the sensible utilizes of biodegradable plastics than can be broken down by microorganisms. In specific, fantastic results have been accomplished through joint international investigation into lactic acid copolymers. So it is secure to say the Hiroshima region is fertile ground in terms of study achievements. Collectively with our regional partners over the next couple of years, Mazda intends to continue its bioplastics study for the purpose of using any advances we accomplish to make much better items for our customers.”

2006 marks the final year of the Mazda Momentum mid-term management program. Two of the plan’s goals have been to accomplish one hundred billion yen in operating profit and a net-debt-to-equity ratio of less than 1 hundred percent by the finish of fiscal year 2006 these have been accomplished a single year earlier than projected. Yet another essential measure of the plan is to strengthen investigation and development efforts. As a firm that values its social contributions now and into the future, Mazda will hold up its proactive technical analysis on eco-friendly and secure merchandise for its customers.

Mazda will exhibit automobile interior components produced with the newly-created bioplastic in its booth at the Automotive Engineering Exposition at the Japan Society of Automotive Engineering (JASE) Annual Congress, to be held at the Pacifico Yokohama complex from Might 24-26, 2006.


1) Carbon neutral

As an example, carbon neutral can be characterized as CO2 gases released in the course of plant decomposition or combustion becoming absorbed throughout the development phase of photosynthesis, so any emitted CO2 gases are offset and end up producing a negligible effect on CO2 levels in the atmosphere.

2) Nucleating agents for crystallization

An additive to stimulate crystallization

A “stimulus” nucleating agent added to crystal acts as a catalyst and tends to make it easier to type the crystals. Polylactic acid has properties which make for comparatively slower crystallization when compared to other plastics and this negatively impacts on production efficiency when molding bioplastics for automobile components. Offered this element, it is required to carry out the crystallization earlier by implies of a nucleating agent. When the molecular chain is arranged in a systematic way, the plastic’s strength is improved and its heat-resistant properties are enhanced.

three) Compatibilizer

An additive is needed for a material that has two or far more distinct types of properties, and when distributed uniformly, it improves the physical properties of the material. It is needed to mix the polylactic acids with a mixture of polylactic acid and an added element that is not chemically compatible.

4) Lactic acid copolymers

This is a plastic material derived by partly replacing some of the components of polylactic acids with other components.

5) International collaboration

-Participating organizations: Hiroshima University (the representative study institute) University of Massachusetts and Tufts University (US) University of Liege (Belgium), Zhejiang University (China).
-Research content material: The aforementioned analysis institutions worked collectively to conduct analysis and development into lactic acid copolymers for general use as properly as use in medical therapies.

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