航天员的衣服具体都是什么材料做的啊，扔到太空后对太空有多大的影响？
推荐回答（1个）
它一般由服装、头盔、手套和靴子等组成。按其用途，航天服可分为弹射救生服、舱内航天服和舱外航天服。按服装内的压力，则有低压航天服和高压航天服之分。从其结构上看，又可分为软式、硬式和软硬结合航天服。它们都由多层组成的，而且要求各层的质量高、轻而薄，。其价格高达上百万美元，若算上载人机动装置则价值达上千万美元，是当今最昂贵的服装。
航天员在舱内活动时需穿舱内航天服。它一般是软式航天服，用于载人航天器的发射、对接和返回过程中发生座舱气密性破坏时保证航天员的生命安全。其最贴身的一层是用纯棉布或棉麻布做的内衣裤。然后是用羊毛制品或合成纤维片(有人称它为太空棉)制成的保暖层，它起保温和隔热的作用。接着是由很长的微细管道连接在衣服上而制成的通风散热层。在人体与外界隔绝的情况下，它可以把人体产生的热、水和气味带出去。第4层是气密加压限制层，它用于充气加压，使身体周围有足够的压力。第5层是可有可无的隔热层，由5～7层涂铝的聚脂薄膜构成，各层之间用网络物隔开，贴在一起形成屏蔽，有良好的隔热和防辐射作用。舱内航天服可以不加这一层，但舱外航天服必须有这层。最外边一层是外罩层，它要求防磨损力强、耐高温，一般用白色或金黄色为好。这种压力服具有良好的密封调压、通风散热、排湿等功能和足够的强度，并装备简易的尿液搜集装置。它在轨道飞行中很重要，因为当座舱大气压力、气体成分控制失效时，舱内航天服可作为应急救生手段。
我国舱内航天服包括3层：一是限制层，由耐高温、抗磨损材料制成，用来保护服装内层，限制气密层的膨胀；二是气密层，用涂有丁基或氯丁橡胶的锦纶织物制成，有良好的气密性，以保持服装内的一定压力；三是散热层，这一层上有许多管道，用来输送气流，通过气流在服装内的流动，带走人体代谢产生的热量。其颜色为乳白色，配有蓝色装饰线。它的心脏部位有一个可以拧动的圆形装置，用来调节衣服内的压力、温度和湿度。航天服右腹部有一根细管，是航天员的通信工具。左腹部处有两条管路，是给航天员供氧和排放二氧化碳的设备。除了头盔和手套，整套航天服是用一种特殊的高强度涤纶做成的。航天服胸前有两条呈V字形的拉链。打开拉链，将腿伸进去，便可循序穿在身上。整套衣服重约10千克，航天员在正常情况下穿戴整齐需要3分钟时间.
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