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From the grove to the sky: Chinese team develops drone made of bamboo-based composites_我的网站

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A drone made of bamboo-based composite materials is seen in flight. Photo: official WeChat account of Long BambooA Chinese team has developed a drone using bamboo-based composite materials after making a breakthrough in a technique that allows bamboo to be flattened while preserving its tough outer layer. The drone has completed multiple test flights, China Central Television (CCTV) News reported.
Long Bamboo, a company based in East China's Fujian Province, developed the technique that preserves the bamboo's tough outer layer and allows different parts with different densities of the material to be used according to their properties, improving its overall performance.
In the past, the outer skin of bamboo was often treated as leftover material and eventually burned into low-value bamboo charcoal.
According to a company release in February, bamboo-based composites now make up more than 25 percent of the entire drone, while its fuselage skin is made entirely from the company's own high-performance bamboo composite material.
The bamboo-based material also offers a major cost advantage, costing only about one-quarter to one-tenth as much as aviation-grade carbon fiber. After the drone is retired, the material can naturally degrade, allowing it to effectively "come from nature and return to nature."
The team spent four years building data models, upgrading equipment and refining the material. The resulting drone has a wingspan of more than 2.5 meters but weighs only about 7 kilograms, and has already completed multiple test flights, according to CCTV News.
Bamboo was traditionally used mainly in products such as tableware and furniture. Now, however, the material is finding its way into a wider range of industrial applications. Bamboo fiber is being used in automobile interiors, while bamboo-based materials are also being explored as possible substitutes for plastics, glass fiber and carbon fiber in some applications.
China has the world's largest bamboo resource base, with about 7.56 million hectares of bamboo forests nationwide. The country also ranks among the world leaders in bamboo resources, bamboo cultivation technologies and the development and utilization of bamboo materials, per CCTV News.
Global Times
。今年夏秋季，长江流域经历了前所未有的干旱，诸多河流、湖泊水位急剧下降，不过进入10月份，形势终于好转。比如鄱阳湖，8月24日、9月5日、9月19日、9月27日、10月2日屡创水位新低，10月2日更是监测到今年以来最小水域面积，仅为600平方公里，大片土地裸露，一度导致严重的扬沙天气。

B | 据江西省生态气象中心，通过最新一次FY3D卫星遥感监测，鄱阳湖的水域面积在10月中旬止跌回升，相比10月2日已经增加了105平方公里，恢复到705平方公里。

C | 在10月18日的卫星图上，星子站附近的水域中浅滩消失了，而部分一度接近干涸的区域重新被深蓝色的水体填充，都是鄱阳湖止跌回升的迹象。

D | 当然，这相比历史同期的2285平方公里仍然偏小接近70％，还需要更多降雨补给才可以。根据超级计算机预测，到本月底，长江中游地区降雨将明显增多，尤其是湖北、湖南两省有望迎来更多降雨。

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Published on:12:01:55