宇山浩
宇山浩（Hiroshi Uyama）
人物简介
以化学修饰挖掘杜仲弹性体性能，使其成为高尔夫球与3D打印新材料。
事迹
宇山浩是大阪大学应用化学教授、高分子材料专家。他被杜仲弹性体'分子量高且立体结构美'所吸引，认为这种酶合成的天然结构是人工化学合成难以企及的，遂以化学修饰赋予其新功能，用动态交联法将脆性的聚乳酸耐冲击性提高一个数量级。
在NEDO项目支持下，他与中泽庆久团队把杜仲从'健康茶原料'升级为工业新材料：改良聚乳酸用于高尔夫球外壳与3D打印线材，并拓展至化妆品容器、医疗半月板等方向，使杜仲弹性体成为植物基生物聚合物的代表性案例。
重要活动 / 事件
- 2006年起 参与阪大-日立造船杜仲产学联合项目
- 2015年1月 杜仲弹性体在nano tech展会获企业合作，3D打印线材商品化
- 2018-2019年 与卡斯科合作推出杜仲弹性体高尔夫球'Biospin'
- 2020年起 与宝丽化成合作开发杜仲弹性体化妆品容器与原料
代表贡献
- 与中泽庆久共同主持日立造船-大阪大学杜仲产学合作，以'同一溶剂法'实现杜仲反式聚异戊二烯分子量238万、纯度99%以上
- 用动态交联法以杜仲弹性体改性聚乳酸，使耐冲击强度最高提升25倍
- 推动杜仲弹性体作为高尔夫球外壳材料（2019年卡斯科'Biospin'上市）与3D打印高强度线材商品化
- 获多项国际专利，成果经NEDO'新技术实感化'项目支持完成产业化
Profile
Used chemical modification to unlock the performance of Eucommia elastomer, turning it into a new material for golf balls and 3D printing.
Story
Uyama Hiroshi is professor of applied chemistry at Osaka University and a polymer materials specialist. Attracted by the Eucommia elastomer's 'high molecular weight and beautiful stereostructure', he held that this enzyme-built natural structure is beyond the reach of artificial chemical synthesis, and set out to endow it with new functions through chemical modification, using dynamic crosslinking to raise the impact resistance of brittle polylactic acid by an order of magnitude.
With NEDO project support, he and Nakazawa Yoshihisa's team upgraded Eucommia from a 'health-tea ingredient' to an industrial new material: modified polylactic acid for golf-ball covers and 3D-printing filament, expanding further toward cosmetic containers and medical menisci, making Eucommia elastomer a flagship example of plant-based biopolymers.
Milestones
- From 2006 Participated in the Osaka University–Hitachi Zosen joint Eucommia project
- January 2015 Eucommia elastomer attracted corporate partners at the nano tech exhibition, leading to commercialization of 3D-printing filament
- 2018–2019 Launched the Eucommia-elastomer golf ball 'Biospin' in cooperation with Kasco
- From 2020 Developed Eucommia-elastomer cosmetic containers and materials in cooperation with Pola Chemical Industries
Key Contributions
- Co-led the Hitachi Zosen–Osaka University Eucommia industry–academia collaboration with Nakazawa Yoshihisa, achieving Eucommia trans-polyisoprene of molecular weight 2.38 million and purity above 99% via the 'one-solvent method'
- Used dynamic crosslinking to modify polylactic acid with Eucommia elastomer, raising impact strength by up to 25-fold
- Drove the commercialization of Eucommia elastomer as a golf-ball cover material (Kasco's 'Biospin', launched 2019) and as high-strength 3D-printing filament
- Obtained multiple international patents; the achievements were industrialized with support from NEDO's 'practical realization of new technologies' program
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