天气预报 > 体育 > 聚丙烯是纯净物吗?
聚丙烯是纯净物吗?
更新时间: 2021-03-29 10:48:22  

1、聚丙烯不是纯净物。

2、聚丙烯是丙烯加聚反应而成的聚合物。系白色蜡状材料,外观透明而轻。密度为0.89~0.91g/cm,易燃,熔点165℃,在155℃左右软化,使用温度范围为-30~140℃。在80℃以下能耐酸、碱、盐液及多种有机溶剂的腐蚀,能在高温和氧化作用下分解。

关键词: 聚丙烯 纯净

聚丙烯是纯净物吗?相关经验

天气预报

最新推荐

页面:/news/view-2170346/ | 耗时:0.8616 s | 内存:2.11 MB | 查询:4 | 缓存读取:3 写入:0 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=2170346 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2170346 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2170346 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1186879,1178438,1010209,420554,3381805,950820,690607,359118,906698,509888,1377023,3379155,1345441,1185350,2503211,775191,748842,534003,975784,610425,593208,602988,814295,942429,506982,990149,580703,600247,745454,766717) ORDER BY field (ArticleID,1186879,1178438,1010209,420554,3381805,950820,690607,359118,906698,509888,1377023,3379155,1345441,1185350,2503211,775191,748842,534003,975784,610425,593208,602988,814295,942429,506982,990149,580703,600247,745454,766717)