摘要:
A resin composition that has high mechanical strength properties, has superior chemical characteristics such as chemical resistance and heat resistance, has high degree of freedom of product design, and has a structure considering the impact on environment is provided at low cost. The resin composition composed of a polyamide resin contains a cotton fiber as a natural fiber. The additive amount of the cotton fiber is preferably 1 wt % to 25 wt % both inclusive. The polyamide resin is polyamide 11 using castor oil as a raw material of plant origin. The average fiber diameter of the cotton fiber is 100 μm or less. The polyamide resin and the cotton fiber are melted and kneaded, and then hot-formed, and thereby a shaped article containing a plant fiber can be fabricated. In addition to the cotton fiber, a plant fiber such as a hemp fiber, a bamboo fiber, and wood powder and a biofiber such as a silk fiber may be applied.
摘要:
A charging circuit includes a generator, a step-down circuit for reducing an output voltage of the generator to a predetermined voltage, a current controller for controlling a charging current that is supplied from the step-down circuit to a secondary battery, based on an amount of power generated by the generator, a mode selector for selecting charging modes, and a monitor for monitoring an amount of stored electricity. The step-down circuit receives an output of the generator, in charging, at a high voltage and a small current and is used to charge the battery at a low voltage and a large current.
摘要:
A composite composition includes at least one organic polymer compound having biodegradability, vegetable fibers, and a hydrolysis inhibitor for the organic polymer compound having biodegradability.
摘要:
A material for acoustic apparatus housing, which is advantageous not only in that it prevents the resin from suffering corrosion and is unlikely to impose a burden on the environment, but also in that it has excellent performance as an acoustic apparatus housing. A material for acoustic apparatus housing, characterized in that it comprises a biodegradable polymer compound, an inorganic material, and a hydrolysis inhibitor.
摘要:
By molding a biodegradable plastic material which is treated with a compound reactive to the active hydrogen in the biodegradable plastic material, a biodegradable plastic material and molding having long-term reliability are obtained.
摘要:
Disclosed is a biodegradable resin composition containing at least one biodegradable organic high molecular compound, a flame retardant additive containing a phosphorus-containing compound, and a hydrolysis suppressing agent suppressing the hydrolysis of the at least one biodegradable organic high molecular compound. An aliphatic polyester resin is polylactic acid, polycaprolactone, polyhydroxy lactic acid, polyhydroxy valeric acid, polyethylene succinate, polybutylene succinate, polybutylene adipate, polymalic acid, polyesters synthesized by fermentation, or a copolymer containing at least one of them. A polysaccharide is cellulose, starch, chitin, chitosan, dextrane, a derivative of at least one of them, or a copolymer containing at least one of them.
摘要:
A biodegradable plastic material that can provide long-term reliability, even though being formed of a biodegradable polyester material, and a shaped article obtained therefrom. A biodegradable plastic material is treated with a compound being capable of reacting with active hydrogen in the biodegradable plastic, and a shaped biodegradable plastic article obtained from the material.
摘要:
Disclosed is a biodegradable resin composition containing at least one biodegradable organic high molecular compound, a flame retardant additive containing a phosphorus-containing compound, and a hydrolysis suppressing agent suppressing the hydrolysis of the at least one biodegradable organic high molecular compound. An aliphatic polyester resin is polylactic acid, polycaprolactone, polyhydroxy lactic acid, polyhydroxy valeric acid, polyethylene succinate, polybutylene succinate, polybutylene adipate, polymalic acid, polyesters synthesized by fermentation, or a copolymer containing at least one of them. A polysaccharide is cellulose, starch, chitin, chitosan, dextrane, a derivative of at least one of them, or a copolymer containing at least one of them.
摘要:
Disclosed is a biodegradable resin composition containing at least one biodegradable polysaccharide, a flame retardant additive containing a hydroxide, and a hydrolysis suppressing agent suppressing the hydrolysis of the at least one biodegradable polysaccharide. The hydroxide contains at least a metal hydroxide, which metal hydroxide is at least one of aluminum hydroxide, magnesium hydroxide and calcium hydroxide. The flame retardant additive preferably further contains a nitrogen compound.
摘要:
A material for acoustic apparatus housing, which is advantageous not only in that it prevents the resin from suffering corrosion and is unlikely to impose a burden on the environment, but also in that it has excellent performance as an acoustic apparatus housing. A material for acoustic apparatus housing, characterized in that it comprises a biodegradable polymer compound, an inorganic material, and a hydrolysis inhibitor.