美科学家开发出新漆料 汽车刮花勿心疼可自动修复
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车子被刮花是爱车人最心疼的事情。不过,未来的汽车可能会涂上一种能够自行修复刮痕的漆料,车主就不必担心车子被刮花了。
据新加坡《联合早报》报道,美国南密西西比大学的科学家开发出一种新的聚氨酯(polyurethane)漆料。镀上这种漆料的汽车或其他物件,如果被刮花,只要在阳光下曝晒,刮痕在不到一个小时就会自动修复。
开发者厄本说,这类漆料可用在汽车、家具或其他须要上等漆料的东西上。
这种能自我修复的漆料是由甲壳素和聚合物混合而成。甲壳素是一种天然存在于甲壳类动物如螃蟹和虾身上的物质,聚合物则是任何一种用来镀在车身上的普通聚合物漆料,例如聚氨酯。
当镀层被刮花,也就是聚合物的分子结构被切断了。这时甲壳素就会在紫外线的照射下产生反应,让周围的聚合物分子重新衔接起来,最后修复刮痕。整个过程不超过一个小时。
不过,厄本承认,这种漆料也有其缺点,就是同一个位置只能修复一次。但他相信,同一个位置被刮花两次的几率很低。
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