回复v3231577发表于:2020/8/10 10:14:51悬赏金额:
17积分 状态:
未解决
一块面料的植绒里面有一种纤维看起来比较光滑,滴硝酸有点膨胀,用盐酸、酸、浓硫酸在常温下都无法溶解掉,可能会是什么纤维?[img=,690,1227]https://ng1.17img.cn/bbsfiles/images/2018/11/201811101014245439_1975_3231577_3.jpg!w690x1227.jpg[/img][img=,690,1227]https://ng1.17img.cn/bbsfiles/images/2018/11/201811101014258060_4742_3231577_3.jpg!w690x1227.jpg[/img][img=,690,1227]https://ng1.17img.cn/bbsfiles/images/2018/11/201811101014250699_9014_3231577_3.jpg!w690x1227.jpg[/img]