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电线上的灰也要定期扫

健康 来源:人民网-生命时报 2018年09月26日 13:49 A-A+ 二维码
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原标题:

  受访专家:中国科学院理化技术研究所工程塑料国家工程研究中心 季君晖

  时间长了,电脑、电视后面缠绕的电线往往积满厚厚的灰,鲜少有人会清理它们。中国科学院理化技术研究所工程塑料国家工程研究中心季君晖表示,电线应该常擦拭,否则释放的塑化剂会伤害健康。

  这是因为,电线外皮多为塑胶、橡胶制品,使用时,电线温度升高,塑胶中塑化剂容易析出。析出的塑化剂一部分挥发到空气中,这就是我们会闻到电线有味道的原因;另一部分存在于电线表面,如果有灰尘,塑化剂更容易吸附在上面,再散播到空气中,通过呼吸或碰触进入人体。

  塑化剂析出后,电线会变硬。如果发现电线的柔软程度有明显变化,或者爱发热、有味道,就可能是老化的信号。这样的电线,外层塑胶绝缘层容易折断,出现细小的裂缝,不但对金属芯的保护能力下降,空气潮湿或很多电线缠绕在一起时,还容易导致漏电等安全事故。所以,电线积了灰尘,一定要及时清理。清理时注意先断电,再用毛刷把灰尘扫净。

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BlobNotFoundThe specified blob does not exist. RequestId:166f6d88-e01e-002e-0e1c-14b8ae000000 Time:2019-05-26T23:39:31.6993278Z 电线 | 塑化剂
BlobNotFoundThe specified blob does not exist. RequestId:9324e56e-601e-00bc-121c-142f18000000 Time:2019-05-26T23:39:31.6991834Z
我要纠错编辑:邹杨 责任编辑:张福伟
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