METHOD FOR MANUFACTURING HIGHLY HEAT-RESISTANT NATURAL RESIN LAMINATE CONTAINING NATURAL FIBER

• Main Authors: YAMASHITA KATSUHIKO, KAWABATA TOSHIHIKO, ISHIHARA SHIGECHIKA, NARAWAKI MAKOTO
• Format: Patent
• Language: English
• Published: 04.11.2011
• Subjects: LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; PERFORMING OPERATIONS; TRANSPORTING

PROBLEM TO BE SOLVED: To provide a method for manufacturing a lightweight and strong highly heat-resistant natural resin laminate containing natural fibers which can endure high temperatures at not less than 250°C and prevent warpage under high-temperature environments with less heat expansion, by eliminating functional defects such as heat resistance, impact resistance, resistance to hydrolytic action and moldability, of carbon-neutral natural resin as a substitute for fossil resources, through simple manufacturing process, using only natural products as a raw material.SOLUTION: The method for manufacturing a highly heat-resistant natural resin laminate is provided.The highly heat-resistant natural resin laminate contains natural fiber, which is constituted of natural fiber resin composed of natural fiber and elastic rubber, and a heat-resistant modified natural resin composed of ebonite containing vitreous microhollow sphere under restrained high temperature vulcanization treatment. The laminate has advantages in terms of strength and impact properties by virtue of natural fiber and elastic rubber, lightweight properties by natural fiber and vitreous microhollow sphere, warpage resistance under high temperature environments, heat resistance by vitreous microhollow sphere, and also, exhibits least susceptibility to heat expansion, excellent insulating characteristics, weatherability, resistance to acids, resistance to alkalis, which are the characteristics of the ebonite, as well as superb mechanical strength.