描写美食的古诗词能进行自我修复的轮胎元宵灯谜大全
仲裁公司轮胎一旦扎了或者磨坏了通常意味着一件事：你得买新的了。但或许未来某天不一定非这样。-自充气轮胎发明以来，制造轮胎必须经过硫化定型。但最近科学家们做出了一种史无前例的橡胶-这种橡胶可以不经过硫化直接成胎。这种人工生成的材料（橡胶）能自我愈合，并且很有可能能承担起车辆长时间行驶过程中的压力。他们的报告登在了 ACS Applied Materials & Interfaces. 期刊上。
硫化是向橡胶里添加硫或其他固化剂，从而让轮胎的耐用性增加但同时不影响轮胎的弹性。但一旦一块“周游世界”的玻璃或其他尖利物体将轮胎捅破，这条轮胎即使修补也不能长期使用了。研究人员正在实验室里研究能自我愈合的轮胎。但这些雏形的轮胎可能长时间并不稳定（也就是说耐用性差）。Amit Das （主要研究人）和他的同事想要向我们强调这点缺点。
研究人员通过一个新的简单的过程，让橡胶不经过硫化，而是用化学改性的方法 就能在保持耐用性、弹性的前提下获得自我修复的能力。实验显示，室温下一块捅破的
橡胶，经过一段时间后伤口能自我愈合。这一性质能用在轮胎上，如果行驶中扎破轮胎，可以用车停在停车场的那段时间愈合。在八天后，轮胎就能承受大约754磅/平方英寸（PSI）的压力（大约52bar）。如果把轮胎加热到100℃保持10分钟，能加速轮胎自愈合过程。研究人员说，如需进一步加强轮胎强度，可以添加助剂，如二氧化硅或炭黑。
寒暄
国庆节阅兵更多相关信息请看 phys/news/2015-09-toward-tires-that-repair-themlves.html
本文翻译自：zm8.sm-tc/?src=http%3A%2F%2Fphys%2Fnews%2F2015-09-
toward-tires-that-repair-themlves.html&uid=2a414a803ec784430c95ae8a038755cb&hid=&restype=1&from=derive&depth=2&link_type=60&wap=fal&uc_param_str=&query=Reddit
原文：
Toward tires that repair themlves
September 23, 2015
A cut or torn tire usually means one thing—you have to buy a new one. But some day, that could change. For the first time, scientists have made tire-grade rubber without the processing step—vulcanization—that has been esntial to inflatable tires since their invention. The resulting material heals itlf and could potentially withstand the long-term pressures of driving. Their report appears in the journal ACS Applied Materials & Interfaces.
潮湿的英文 Vulcanization involves adding sulfur or other curatives to make rubber more durable while maintaining its elasticity. But once an errant piece of glass or other sharp object pier中文读音器
ces a tire, it can't be patched for long-term u. Rearchers are beginning to develop lf-healing rubber in the laboratory, but the prototypes might not be stable over time either. Amit Das and colleagues wanted to address that shortcoming.
Using a new simple process that avoids vulcanization altogether, the rearchers chemically modified commercial rubber into a durable, elastic material that can fix itlf over time. Testing showed that a cut in the material healed at room temperature, a property that could allow a tire to mend itlf while parked. And after 8 days, the rubber could withstand a stress of 754 pounds per square inch. Heating it to 212 degrees Fahrenheit for the first 10 minutes accelerated the repair process. The rearchers say their product could be further strengthened by adding reinforcing agents such as silica or carbon black.
皮鞋哪个品牌质量好 More information: Ionic Modification Turns Commercial Rubber into a Self-Healing Material, ACS Appl. Mater. Interfaces, 2015, 7 (37), pp 20623–20630 DOI: 10.1021/acsami.5b05041
