申请人:3M Innovative Properties Company
公开号:EP3640281A1
公开(公告)日:2020-04-22
The present disclosure relates to a powder comprising particles of a fluoropolymer, wherein the particles have an average particle size (dso) in a range from 20 to 100 micrometers, an average particle sphericity greater than 0.8 when measured according to the test method described in the experimental section, and wherein the powder has a bulk density no greater than 2000 g/l when measured according to DIN EN ISO 60:2000-1 and a powder flow time no greater than 20 seconds per 100 ml when measured according to DIN EN ISO 12086:2006-1.
According to another aspect, the present disclosure is directed to a process of manufacturing such powder and uses thereof. In still another aspect, it is provided a three-dimensional article obtained by sintering such powder.
本公开涉及一种由含氟聚合物颗粒组成的粉末,其中颗粒的平均粒径(dso)在20至100微米之间,根据实验部分所述的测试方法测量,平均颗粒球度大于0.8,根据DIN EN ISO 60:2000-1测量,粉末的体积密度不大于2000克/升,根据DIN EN ISO 12086:2006-1测量,每100毫升粉末的流动时间不大于20秒。
根据另一个方面,本公开涉及制造这种粉末的工艺及其用途。还有一方面,提供了一种通过烧结这种粉末获得的三维制品。